Mercurial > cpython-lru_cache-weakref

--- a/Include/patchlevel.h	Thu Mar 15 13:57:27 2012 -0500
+++ b/Include/patchlevel.h	Thu Mar 15 13:57:38 2012 -0500
@@ -2,7 +2,7 @@
 /* Python version identification scheme.

    When the major or minor version changes, the VERSION variable in
-   configure.in must also be changed.
+   configure.ac must also be changed.

    There is also (independent) API version information in modsupport.h.
 */
--- a/Makefile.pre.in	Thu Mar 15 13:57:27 2012 -0500
+++ b/Makefile.pre.in	Thu Mar 15 13:57:38 2012 -0500
@@ -151,7 +151,7 @@
 SUBDIRSTOO=	Include Lib Misc Demo

 # Files and directories to be distributed
-CONFIGFILES=	configure configure.in acconfig.h pyconfig.h.in Makefile.pre.in
+CONFIGFILES=	configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in
 DISTFILES=	README ChangeLog $(CONFIGFILES)
 DISTDIRS=	$(SUBDIRS) $(SUBDIRSTOO) Ext-dummy
 DIST=		$(DISTFILES) $(DISTDIRS)
@@ -1137,7 +1137,7 @@
 	$(SHELL) config.status --recheck
 	$(SHELL) config.status

-# Rebuild the configure script from configure.in; also rebuild pyconfig.h.in
+# Rebuild the configure script from configure.ac; also rebuild pyconfig.h.in
 autoconf:
 	(cd $(srcdir); autoconf)
 	(cd $(srcdir); autoheader)
--- a/Misc/README.OpenBSD	Thu Mar 15 13:57:27 2012 -0500
+++ b/Misc/README.OpenBSD	Thu Mar 15 13:57:38 2012 -0500
@@ -29,7 +29,7 @@

 If your version is not in that list, e.g., 3.9, add the version
 number.  In this case, you would just need to add a 9 after the 8.
-If you modify configure.in, you will need to regenerate configure
+If you modify configure.ac, you will need to regenerate configure
 with autoconf.

 If your version is already in the list, this is not a known problem.
--- a/Modules/expat/expat.h	Thu Mar 15 13:57:27 2012 -0500
+++ b/Modules/expat/expat.h	Thu Mar 15 13:57:38 2012 -0500
@@ -883,6 +883,15 @@
 XML_SetParamEntityParsing(XML_Parser parser,
                           enum XML_ParamEntityParsing parsing);

+/* Sets the hash salt to use for internal hash calculations.
+   Helps in preventing DoS attacks based on predicting hash
+   function behavior. This must be called before parsing is started.
+   Returns 1 if successful, 0 when called after parsing has started.
+*/
+XMLPARSEAPI(int)
+XML_SetHashSalt(XML_Parser parser,
+                unsigned long hash_salt);
+
 /* If XML_Parse or XML_ParseBuffer have returned XML_STATUS_ERROR, then
    XML_GetErrorCode returns information about the error.
 */
--- a/Modules/expat/pyexpatns.h	Thu Mar 15 13:57:27 2012 -0500
+++ b/Modules/expat/pyexpatns.h	Thu Mar 15 13:57:38 2012 -0500
@@ -97,6 +97,7 @@
 #define XML_SetEntityDeclHandler        PyExpat_XML_SetEntityDeclHandler
 #define XML_SetExternalEntityRefHandler PyExpat_XML_SetExternalEntityRefHandler
 #define XML_SetExternalEntityRefHandlerArg  PyExpat_XML_SetExternalEntityRefHandlerArg
+#define XML_SetHashSalt                 PyExpat_XML_SetHashSalt
 #define XML_SetNamespaceDeclHandler     PyExpat_XML_SetNamespaceDeclHandler
 #define XML_SetNotationDeclHandler      PyExpat_XML_SetNotationDeclHandler
 #define XML_SetNotStandaloneHandler     PyExpat_XML_SetNotStandaloneHandler
--- a/Modules/expat/xmlparse.c	Thu Mar 15 13:57:27 2012 -0500
+++ b/Modules/expat/xmlparse.c	Thu Mar 15 13:57:38 2012 -0500
@@ -17,6 +17,8 @@
 #include <stddef.h>
 #include <string.h>                     /* memset(), memcpy() */
 #include <assert.h>
+#include <limits.h>                     /* UINT_MAX */
+#include <time.h>                       /* time() */

 #include "expat.h"

@@ -387,12 +389,13 @@
 static void
 dtdDestroy(DTD *p, XML_Bool isDocEntity, const XML_Memory_Handling_Suite *ms);
 static int
-dtdCopy(DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms);
+dtdCopy(XML_Parser oldParser,
+        DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms);
 static int
-copyEntityTable(HASH_TABLE *, STRING_POOL *, const HASH_TABLE *);
-
+copyEntityTable(XML_Parser oldParser,
+                HASH_TABLE *, STRING_POOL *, const HASH_TABLE *);
 static NAMED *
-lookup(HASH_TABLE *table, KEY name, size_t createSize);
+lookup(XML_Parser parser, HASH_TABLE *table, KEY name, size_t createSize);
 static void FASTCALL
 hashTableInit(HASH_TABLE *, const XML_Memory_Handling_Suite *ms);
 static void FASTCALL hashTableClear(HASH_TABLE *);
@@ -425,6 +428,9 @@
 getElementType(XML_Parser parser, const ENCODING *enc,
                const char *ptr, const char *end);

+static unsigned long generate_hash_secret_salt(void);
+static XML_Bool startParsing(XML_Parser parser);
+
 static XML_Parser
 parserCreate(const XML_Char *encodingName,
              const XML_Memory_Handling_Suite *memsuite,
@@ -542,6 +548,7 @@
   XML_Bool m_useForeignDTD;
   enum XML_ParamEntityParsing m_paramEntityParsing;
 #endif
+  unsigned long m_hash_secret_salt;
 };

 #define MALLOC(s) (parser->m_mem.malloc_fcn((s)))
@@ -649,6 +656,7 @@
 #define useForeignDTD (parser->m_useForeignDTD)
 #define paramEntityParsing (parser->m_paramEntityParsing)
 #endif /* XML_DTD */
+#define hash_secret_salt (parser->m_hash_secret_salt)

 XML_Parser XMLCALL
 XML_ParserCreate(const XML_Char *encodingName)
@@ -671,22 +679,36 @@
   'n', 'a', 'm', 'e', 's', 'p', 'a', 'c', 'e', '\0'
 };

-XML_Parser XMLCALL
-XML_ParserCreate_MM(const XML_Char *encodingName,
-                    const XML_Memory_Handling_Suite *memsuite,
-                    const XML_Char *nameSep)
+static unsigned long
+generate_hash_secret_salt(void)
 {
-  XML_Parser parser = parserCreate(encodingName, memsuite, nameSep, NULL);
-  if (parser != NULL && ns) {
+  unsigned int seed = time(NULL) % UINT_MAX;
+  srand(seed);
+  return rand();
+}
+
+static XML_Bool  /* only valid for root parser */
+startParsing(XML_Parser parser)
+{
+  /* hash functions must be initialized before setContext() is called */
+
+  if (hash_secret_salt == 0)
+    hash_secret_salt = generate_hash_secret_salt();
+  if (ns) {
     /* implicit context only set for root parser, since child
        parsers (i.e. external entity parsers) will inherit it
     */
-    if (!setContext(parser, implicitContext)) {
-      XML_ParserFree(parser);
-      return NULL;
-    }
+    return setContext(parser, implicitContext);
   }
-  return parser;
+  return XML_TRUE;
+}
+
+XML_Parser XMLCALL
+XML_ParserCreate_MM(const XML_Char *encodingName,
+    const XML_Memory_Handling_Suite *memsuite,
+    const XML_Char *nameSep)
+{
+  return parserCreate(encodingName, memsuite, nameSep, NULL);
 }

 static XML_Parser
@@ -860,6 +882,7 @@
   useForeignDTD = XML_FALSE;
   paramEntityParsing = XML_PARAM_ENTITY_PARSING_NEVER;
 #endif
+  hash_secret_salt = 0;
 }

 /* moves list of bindings to freeBindingList */
@@ -907,7 +930,7 @@
   poolClear(&temp2Pool);
   parserInit(parser, encodingName);
   dtdReset(_dtd, &parser->m_mem);
-  return setContext(parser, implicitContext);
+  return XML_TRUE;
 }

 enum XML_Status XMLCALL
@@ -976,6 +999,12 @@
   int oldInEntityValue = prologState.inEntityValue;
 #endif
   XML_Bool oldns_triplets = ns_triplets;
+  /* Note that the new parser shares the same hash secret as the old
+     parser, so that dtdCopy and copyEntityTable can lookup values
+     from hash tables associated with either parser without us having
+     to worry which hash secrets each table has.
+  */
+  unsigned long oldhash_secret_salt = hash_secret_salt;

 #ifdef XML_DTD
   if (!context)
@@ -1029,13 +1058,14 @@
     externalEntityRefHandlerArg = oldExternalEntityRefHandlerArg;
   defaultExpandInternalEntities = oldDefaultExpandInternalEntities;
   ns_triplets = oldns_triplets;
+  hash_secret_salt = oldhash_secret_salt;
   parentParser = oldParser;
 #ifdef XML_DTD
   paramEntityParsing = oldParamEntityParsing;
   prologState.inEntityValue = oldInEntityValue;
   if (context) {
 #endif /* XML_DTD */
-    if (!dtdCopy(_dtd, oldDtd, &parser->m_mem)
+    if (!dtdCopy(oldParser, _dtd, oldDtd, &parser->m_mem)
       || !setContext(parser, context)) {
       XML_ParserFree(parser);
       return NULL;
@@ -1420,6 +1450,17 @@
 #endif
 }

+int XMLCALL
+XML_SetHashSalt(XML_Parser parser,
+                unsigned long hash_salt)
+{
+  /* block after XML_Parse()/XML_ParseBuffer() has been called */
+  if (ps_parsing == XML_PARSING || ps_parsing == XML_SUSPENDED)
+    return 0;
+  hash_secret_salt = hash_salt;
+  return 1;
+}
+
 enum XML_Status XMLCALL
 XML_Parse(XML_Parser parser, const char *s, int len, int isFinal)
 {
@@ -1430,6 +1471,11 @@
   case XML_FINISHED:
     errorCode = XML_ERROR_FINISHED;
     return XML_STATUS_ERROR;
+  case XML_INITIALIZED:
+    if (parentParser == NULL && !startParsing(parser)) {
+      errorCode = XML_ERROR_NO_MEMORY;
+      return XML_STATUS_ERROR;
+    }
   default:
     ps_parsing = XML_PARSING;
   }
@@ -1488,11 +1534,13 @@
         break;
       case XML_INITIALIZED:
       case XML_PARSING:
-        result = XML_STATUS_OK;
         if (isFinal) {
           ps_parsing = XML_FINISHED;
-          return result;
+          return XML_STATUS_OK;
         }
+      /* fall through */
+      default:
+        result = XML_STATUS_OK;
       }
     }

@@ -1553,6 +1601,11 @@
   case XML_FINISHED:
     errorCode = XML_ERROR_FINISHED;
     return XML_STATUS_ERROR;
+  case XML_INITIALIZED:
+    if (parentParser == NULL && !startParsing(parser)) {
+      errorCode = XML_ERROR_NO_MEMORY;
+      return XML_STATUS_ERROR;
+    }
   default:
     ps_parsing = XML_PARSING;
   }
@@ -2231,7 +2284,7 @@
                                 next - enc->minBytesPerChar);
         if (!name)
           return XML_ERROR_NO_MEMORY;
-        entity = (ENTITY *)lookup(&dtd->generalEntities, name, 0);
+        entity = (ENTITY *)lookup(parser, &dtd->generalEntities, name, 0);
         poolDiscard(&dtd->pool);
         /* First, determine if a check for an existing declaration is needed;
            if yes, check that the entity exists, and that it is internal,
@@ -2618,12 +2671,12 @@
   const XML_Char *localPart;

   /* lookup the element type name */
-  elementType = (ELEMENT_TYPE *)lookup(&dtd->elementTypes, tagNamePtr->str,0);
+  elementType = (ELEMENT_TYPE *)lookup(parser, &dtd->elementTypes, tagNamePtr->str,0);
   if (!elementType) {
     const XML_Char *name = poolCopyString(&dtd->pool, tagNamePtr->str);
     if (!name)
       return XML_ERROR_NO_MEMORY;
-    elementType = (ELEMENT_TYPE *)lookup(&dtd->elementTypes, name,
+    elementType = (ELEMENT_TYPE *)lookup(parser, &dtd->elementTypes, name,
                                          sizeof(ELEMENT_TYPE));
     if (!elementType)
       return XML_ERROR_NO_MEMORY;
@@ -2792,9 +2845,9 @@
       if (s[-1] == 2) {  /* prefixed */
         ATTRIBUTE_ID *id;
         const BINDING *b;
-        unsigned long uriHash = 0;
+        unsigned long uriHash = hash_secret_salt;
         ((XML_Char *)s)[-1] = 0;  /* clear flag */
-        id = (ATTRIBUTE_ID *)lookup(&dtd->attributeIds, s, 0);
+        id = (ATTRIBUTE_ID *)lookup(parser, &dtd->attributeIds, s, 0);
         if (!id)
           return XML_ERROR_NO_MEMORY;
         b = id->prefix->binding;
@@ -2818,7 +2871,7 @@
         } while (*s++);

         { /* Check hash table for duplicate of expanded name (uriName).
-             Derived from code in lookup(HASH_TABLE *table, ...).
+             Derived from code in lookup(parser, HASH_TABLE *table, ...).
           */
           unsigned char step = 0;
           unsigned long mask = nsAttsSize - 1;
@@ -3756,7 +3809,8 @@
     case XML_ROLE_DOCTYPE_PUBLIC_ID:
 #ifdef XML_DTD
       useForeignDTD = XML_FALSE;
-      declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+      declEntity = (ENTITY *)lookup(parser,
+                                    &dtd->paramEntities,
                                     externalSubsetName,
                                     sizeof(ENTITY));
       if (!declEntity)
@@ -3811,7 +3865,8 @@
         XML_Bool hadParamEntityRefs = dtd->hasParamEntityRefs;
         dtd->hasParamEntityRefs = XML_TRUE;
         if (paramEntityParsing && externalEntityRefHandler) {
-          ENTITY *entity = (ENTITY *)lookup(&dtd->paramEntities,
+          ENTITY *entity = (ENTITY *)lookup(parser,
+                                            &dtd->paramEntities,
                                             externalSubsetName,
                                             sizeof(ENTITY));
           if (!entity)
@@ -3855,7 +3910,7 @@
         XML_Bool hadParamEntityRefs = dtd->hasParamEntityRefs;
         dtd->hasParamEntityRefs = XML_TRUE;
         if (paramEntityParsing && externalEntityRefHandler) {
-          ENTITY *entity = (ENTITY *)lookup(&dtd->paramEntities,
+          ENTITY *entity = (ENTITY *)lookup(parser, &dtd->paramEntities,
                                             externalSubsetName,
                                             sizeof(ENTITY));
           if (!entity)
@@ -4069,7 +4124,8 @@
       break;
 #else /* XML_DTD */
       if (!declEntity) {
-        declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+        declEntity = (ENTITY *)lookup(parser,
+                                      &dtd->paramEntities,
                                       externalSubsetName,
                                       sizeof(ENTITY));
         if (!declEntity)
@@ -4144,7 +4200,7 @@
           const XML_Char *name = poolStoreString(&dtd->pool, enc, s, next);
           if (!name)
             return XML_ERROR_NO_MEMORY;
-          declEntity = (ENTITY *)lookup(&dtd->generalEntities, name,
+          declEntity = (ENTITY *)lookup(parser, &dtd->generalEntities, name,
                                         sizeof(ENTITY));
           if (!declEntity)
             return XML_ERROR_NO_MEMORY;
@@ -4176,7 +4232,7 @@
         const XML_Char *name = poolStoreString(&dtd->pool, enc, s, next);
         if (!name)
           return XML_ERROR_NO_MEMORY;
-        declEntity = (ENTITY *)lookup(&dtd->paramEntities,
+        declEntity = (ENTITY *)lookup(parser, &dtd->paramEntities,
                                            name, sizeof(ENTITY));
         if (!declEntity)
           return XML_ERROR_NO_MEMORY;
@@ -4358,7 +4414,7 @@
                                 next - enc->minBytesPerChar);
         if (!name)
           return XML_ERROR_NO_MEMORY;
-        entity = (ENTITY *)lookup(&dtd->paramEntities, name, 0);
+        entity = (ENTITY *)lookup(parser, &dtd->paramEntities, name, 0);
         poolDiscard(&dtd->pool);
         /* first, determine if a check for an existing declaration is needed;
            if yes, check that the entity exists, and that it is internal,
@@ -4882,7 +4938,7 @@
                                next - enc->minBytesPerChar);
         if (!name)
           return XML_ERROR_NO_MEMORY;
-        entity = (ENTITY *)lookup(&dtd->generalEntities, name, 0);
+        entity = (ENTITY *)lookup(parser, &dtd->generalEntities, name, 0);
         poolDiscard(&temp2Pool);
         /* First, determine if a check for an existing declaration is needed;
            if yes, check that the entity exists, and that it is internal.
@@ -4991,7 +5047,7 @@
           result = XML_ERROR_NO_MEMORY;
           goto endEntityValue;
         }
-        entity = (ENTITY *)lookup(&dtd->paramEntities, name, 0);
+        entity = (ENTITY *)lookup(parser, &dtd->paramEntities, name, 0);
         poolDiscard(&tempPool);
         if (!entity) {
           /* not a well-formedness error - see XML 1.0: WFC Entity Declared */
@@ -5281,7 +5337,7 @@
       }
       if (!poolAppendChar(&dtd->pool, XML_T('\0')))
         return 0;
-      prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&dtd->pool),
+      prefix = (PREFIX *)lookup(parser, &dtd->prefixes, poolStart(&dtd->pool),
                                 sizeof(PREFIX));
       if (!prefix)
         return 0;
@@ -5310,7 +5366,7 @@
     return NULL;
   /* skip quotation mark - its storage will be re-used (like in name[-1]) */
   ++name;
-  id = (ATTRIBUTE_ID *)lookup(&dtd->attributeIds, name, sizeof(ATTRIBUTE_ID));
+  id = (ATTRIBUTE_ID *)lookup(parser, &dtd->attributeIds, name, sizeof(ATTRIBUTE_ID));
   if (!id)
     return NULL;
   if (id->name != name)
@@ -5328,7 +5384,7 @@
       if (name[5] == XML_T('\0'))
         id->prefix = &dtd->defaultPrefix;
       else
-        id->prefix = (PREFIX *)lookup(&dtd->prefixes, name + 6, sizeof(PREFIX));
+        id->prefix = (PREFIX *)lookup(parser, &dtd->prefixes, name + 6, sizeof(PREFIX));
       id->xmlns = XML_TRUE;
     }
     else {
@@ -5343,7 +5399,7 @@
           }
           if (!poolAppendChar(&dtd->pool, XML_T('\0')))
             return NULL;
-          id->prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&dtd->pool),
+          id->prefix = (PREFIX *)lookup(parser, &dtd->prefixes, poolStart(&dtd->pool),
                                         sizeof(PREFIX));
           if (!id->prefix)
             return NULL;
@@ -5441,7 +5497,7 @@
       ENTITY *e;
       if (!poolAppendChar(&tempPool, XML_T('\0')))
         return XML_FALSE;
-      e = (ENTITY *)lookup(&dtd->generalEntities, poolStart(&tempPool), 0);
+      e = (ENTITY *)lookup(parser, &dtd->generalEntities, poolStart(&tempPool), 0);
       if (e)
         e->open = XML_TRUE;
       if (*s != XML_T('\0'))
@@ -5456,7 +5512,7 @@
       else {
         if (!poolAppendChar(&tempPool, XML_T('\0')))
           return XML_FALSE;
-        prefix = (PREFIX *)lookup(&dtd->prefixes, poolStart(&tempPool),
+        prefix = (PREFIX *)lookup(parser, &dtd->prefixes, poolStart(&tempPool),
                                   sizeof(PREFIX));
         if (!prefix)
           return XML_FALSE;
@@ -5620,7 +5676,7 @@
    The new DTD has already been initialized.
 */
 static int
-dtdCopy(DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms)
+dtdCopy(XML_Parser oldParser, DTD *newDtd, const DTD *oldDtd, const XML_Memory_Handling_Suite *ms)
 {
   HASH_TABLE_ITER iter;

@@ -5635,7 +5691,7 @@
     name = poolCopyString(&(newDtd->pool), oldP->name);
     if (!name)
       return 0;
-    if (!lookup(&(newDtd->prefixes), name, sizeof(PREFIX)))
+    if (!lookup(oldParser, &(newDtd->prefixes), name, sizeof(PREFIX)))
       return 0;
   }

@@ -5657,7 +5713,7 @@
     if (!name)
       return 0;
     ++name;
-    newA = (ATTRIBUTE_ID *)lookup(&(newDtd->attributeIds), name,
+    newA = (ATTRIBUTE_ID *)lookup(oldParser, &(newDtd->attributeIds), name,
                                   sizeof(ATTRIBUTE_ID));
     if (!newA)
       return 0;
@@ -5667,7 +5723,7 @@
       if (oldA->prefix == &oldDtd->defaultPrefix)
         newA->prefix = &newDtd->defaultPrefix;
       else
-        newA->prefix = (PREFIX *)lookup(&(newDtd->prefixes),
+        newA->prefix = (PREFIX *)lookup(oldParser, &(newDtd->prefixes),
                                         oldA->prefix->name, 0);
     }
   }
@@ -5686,7 +5742,7 @@
     name = poolCopyString(&(newDtd->pool), oldE->name);
     if (!name)
       return 0;
-    newE = (ELEMENT_TYPE *)lookup(&(newDtd->elementTypes), name,
+    newE = (ELEMENT_TYPE *)lookup(oldParser, &(newDtd->elementTypes), name,
                                   sizeof(ELEMENT_TYPE));
     if (!newE)
       return 0;
@@ -5700,14 +5756,14 @@
     }
     if (oldE->idAtt)
       newE->idAtt = (ATTRIBUTE_ID *)
-          lookup(&(newDtd->attributeIds), oldE->idAtt->name, 0);
+          lookup(oldParser, &(newDtd->attributeIds), oldE->idAtt->name, 0);
     newE->allocDefaultAtts = newE->nDefaultAtts = oldE->nDefaultAtts;
     if (oldE->prefix)
-      newE->prefix = (PREFIX *)lookup(&(newDtd->prefixes),
+      newE->prefix = (PREFIX *)lookup(oldParser, &(newDtd->prefixes),
                                       oldE->prefix->name, 0);
     for (i = 0; i < newE->nDefaultAtts; i++) {
       newE->defaultAtts[i].id = (ATTRIBUTE_ID *)
-          lookup(&(newDtd->attributeIds), oldE->defaultAtts[i].id->name, 0);
+          lookup(oldParser, &(newDtd->attributeIds), oldE->defaultAtts[i].id->name, 0);
       newE->defaultAtts[i].isCdata = oldE->defaultAtts[i].isCdata;
       if (oldE->defaultAtts[i].value) {
         newE->defaultAtts[i].value
@@ -5721,13 +5777,15 @@
   }

   /* Copy the entity tables. */
-  if (!copyEntityTable(&(newDtd->generalEntities),
+  if (!copyEntityTable(oldParser,
+                       &(newDtd->generalEntities),
                        &(newDtd->pool),
                        &(oldDtd->generalEntities)))
       return 0;

 #ifdef XML_DTD
-  if (!copyEntityTable(&(newDtd->paramEntities),
+  if (!copyEntityTable(oldParser,
+                       &(newDtd->paramEntities),
                        &(newDtd->pool),
                        &(oldDtd->paramEntities)))
       return 0;
@@ -5750,7 +5808,8 @@
 }  /* End dtdCopy */

 static int
-copyEntityTable(HASH_TABLE *newTable,
+copyEntityTable(XML_Parser oldParser,
+                HASH_TABLE *newTable,
                 STRING_POOL *newPool,
                 const HASH_TABLE *oldTable)
 {
@@ -5769,7 +5828,7 @@
     name = poolCopyString(newPool, oldE->name);
     if (!name)
       return 0;
-    newE = (ENTITY *)lookup(newTable, name, sizeof(ENTITY));
+    newE = (ENTITY *)lookup(oldParser, newTable, name, sizeof(ENTITY));
     if (!newE)
       return 0;
     if (oldE->systemId) {
@@ -5827,16 +5886,16 @@
 }

 static unsigned long FASTCALL
-hash(KEY s)
+hash(XML_Parser parser, KEY s)
 {
-  unsigned long h = 0;
+  unsigned long h = hash_secret_salt;
   while (*s)
     h = CHAR_HASH(h, *s++);
   return h;
 }

 static NAMED *
-lookup(HASH_TABLE *table, KEY name, size_t createSize)
+lookup(XML_Parser parser, HASH_TABLE *table, KEY name, size_t createSize)
 {
   size_t i;
   if (table->size == 0) {
@@ -5853,10 +5912,10 @@
       return NULL;
     }
     memset(table->v, 0, tsize);
-    i = hash(name) & ((unsigned long)table->size - 1);
+    i = hash(parser, name) & ((unsigned long)table->size - 1);
   }
   else {
-    unsigned long h = hash(name);
+    unsigned long h = hash(parser, name);
     unsigned long mask = (unsigned long)table->size - 1;
     unsigned char step = 0;
     i = h & mask;
@@ -5882,7 +5941,7 @@
       memset(newV, 0, tsize);
       for (i = 0; i < table->size; i++)
         if (table->v[i]) {
-          unsigned long newHash = hash(table->v[i]->name);
+          unsigned long newHash = hash(parser, table->v[i]->name);
           size_t j = newHash & newMask;
           step = 0;
           while (newV[j]) {
@@ -6257,7 +6316,7 @@

   if (!name)
     return NULL;
-  ret = (ELEMENT_TYPE *) lookup(&dtd->elementTypes, name, sizeof(ELEMENT_TYPE));
+  ret = (ELEMENT_TYPE *) lookup(parser, &dtd->elementTypes, name, sizeof(ELEMENT_TYPE));
   if (!ret)
     return NULL;
   if (ret->name != name)
--- a/Modules/pyexpat.c	Thu Mar 15 13:57:27 2012 -0500
+++ b/Modules/pyexpat.c	Thu Mar 15 13:57:38 2012 -0500
@@ -1245,6 +1245,8 @@
     else {
         self->itself = XML_ParserCreate(encoding);
     }
+    XML_SetHashSalt(self->itself,
+                    (unsigned long)_Py_HashSecret.prefix);
     self->intern = intern;
     Py_XINCREF(self->intern);
 #ifdef Py_TPFLAGS_HAVE_GC
--- a/PC/pyconfig.h	Thu Mar 15 13:57:27 2012 -0500
+++ b/PC/pyconfig.h	Thu Mar 15 13:57:38 2012 -0500
@@ -344,7 +344,7 @@
 #	define SIZEOF_FPOS_T 8
 #	define SIZEOF_HKEY 8
 #	define SIZEOF_SIZE_T 8
-/* configure.in defines HAVE_LARGEFILE_SUPPORT iff HAVE_LONG_LONG,
+/* configure.ac defines HAVE_LARGEFILE_SUPPORT iff HAVE_LONG_LONG,
    sizeof(off_t) > sizeof(long), and sizeof(PY_LONG_LONG) >= sizeof(off_t).
    On Win64 the second condition is not true, but if fpos_t replaces off_t
    then this is true. The uses of HAVE_LARGEFILE_SUPPORT imply that Win64
--- a/Python/thread.c	Thu Mar 15 13:57:27 2012 -0500
+++ b/Python/thread.c	Thu Mar 15 13:57:38 2012 -0500
@@ -24,7 +24,7 @@
 #include <stdlib.h>

 #ifdef __sgi
-#ifndef HAVE_PTHREAD_H /* XXX Need to check in configure.in */
+#ifndef HAVE_PTHREAD_H /* XXX Need to check in configure.ac */
 #undef _POSIX_THREADS
 #endif
 #endif
--- a/configure	Thu Mar 15 13:57:27 2012 -0500
+++ b/configure	Thu Mar 15 13:57:38 2012 -0500
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision.
+# From configure.ac Revision.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.68 for python 3.1.
 #
@@ -769,8 +769,7 @@
 LDFLAGS
 LIBS
 CPPFLAGS
-CPP
-CPPFLAGS'
+CPP'


 # Initialize some variables set by options.
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/configure.ac	Thu Mar 15 13:57:38 2012 -0500
@@ -0,0 +1,4158 @@
+dnl ***********************************************
+dnl * Please run autoreconf to test your changes! *
+dnl ***********************************************
+dnl NOTE: autoconf 2.64 doesn't seem to work (use 2.61).
+
+# Set VERSION so we only need to edit in one place (i.e., here)
+m4_define(PYTHON_VERSION, 3.1)
+
+AC_REVISION($Revision$)
+AC_PREREQ(2.61)
+AC_INIT(python, PYTHON_VERSION, http://bugs.python.org/)
+AC_CONFIG_SRCDIR([Include/object.h])
+AC_CONFIG_HEADER(pyconfig.h)
+
+dnl Ensure that if prefix is specified, it does not end in a slash. If
+dnl it does, we get path names containing '//' which is both ugly and
+dnl can cause trouble.
+
+dnl Last slash shouldn't be stripped if prefix=/
+if test "$prefix" != "/"; then
+    prefix=`echo "$prefix" | sed -e 's/\/$//g'`
+fi
+
+dnl This is for stuff that absolutely must end up in pyconfig.h.
+dnl Please use pyport.h instead, if possible.
+AH_TOP([
+#ifndef Py_PYCONFIG_H
+#define Py_PYCONFIG_H
+])
+AH_BOTTOM([
+/* Define the macros needed if on a UnixWare 7.x system. */
+#if defined(__USLC__) && defined(__SCO_VERSION__)
+#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
+#endif
+
+#endif /*Py_PYCONFIG_H*/
+])
+
+# We don't use PACKAGE_ variables, and they cause conflicts
+# with other autoconf-based packages that include Python.h
+grep -v 'define PACKAGE_' <confdefs.h >confdefs.h.new
+rm confdefs.h
+mv confdefs.h.new confdefs.h
+
+AC_SUBST(VERSION)
+VERSION=PYTHON_VERSION
+
+AC_SUBST(SOVERSION)
+SOVERSION=1.0
+
+# The later defininition of _XOPEN_SOURCE disables certain features
+# on Linux, so we need _GNU_SOURCE to re-enable them (makedev, tm_zone).
+AC_DEFINE(_GNU_SOURCE, 1, [Define on Linux to activate all library features])
+
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
+# them.
+AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])
+
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
+# them.
+AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
+
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
+AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])
+
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# certain features on Mac OS X, so we need _DARWIN_C_SOURCE to re-enable
+# them.
+AC_DEFINE(_DARWIN_C_SOURCE, 1, [Define on Darwin to activate all library features])
+
+
+define_xopen_source=yes
+
+# Arguments passed to configure.
+AC_SUBST(CONFIG_ARGS)
+CONFIG_ARGS="$ac_configure_args"
+
+AC_MSG_CHECKING([for --enable-universalsdk])
+AC_ARG_ENABLE(universalsdk,
+	AC_HELP_STRING(--enable-universalsdk@<:@=SDKDIR@:>@, Build against Mac OS X 10.4u SDK (ppc/i386)),
+[
+	case $enableval in
+	yes)
+		enableval=/Developer/SDKs/MacOSX10.4u.sdk
+		if test ! -d "${enableval}"
+		then
+			enableval=/
+		fi
+		;;
+	esac
+	case $enableval in
+	no)
+		UNIVERSALSDK=
+		enable_universalsdk=
+		;;
+	*)
+		UNIVERSALSDK=$enableval
+		if test ! -d "${UNIVERSALSDK}"
+		then
+			AC_MSG_ERROR([--enable-universalsdk specifies non-existing SDK: ${UNIVERSALSDK}])
+		fi
+		;;
+	esac
+
+],[
+   	UNIVERSALSDK=
+	enable_universalsdk=
+])
+if test -n "${UNIVERSALSDK}"
+then
+	AC_MSG_RESULT(${UNIVERSALSDK})
+else
+	AC_MSG_RESULT(no)
+fi
+AC_SUBST(UNIVERSALSDK)
+
+AC_SUBST(ARCH_RUN_32BIT)
+
+UNIVERSAL_ARCHS="32-bit"
+AC_SUBST(LIPO_32BIT_FLAGS)
+AC_SUBST(LIPO_64BIT_FLAGS)
+AC_MSG_CHECKING(for --with-universal-archs)
+AC_ARG_WITH(universal-archs,
+    AC_HELP_STRING(--with-universal-archs=ARCH, select architectures for universal build ("32-bit", "64-bit", "3-way", "intel" or "all")),
+[
+	AC_MSG_RESULT($withval)
+	UNIVERSAL_ARCHS="$withval"
+],
+[
+ 	AC_MSG_RESULT(32-bit)
+])
+
+
+
+AC_ARG_WITH(framework-name,
+              AC_HELP_STRING(--with-framework-name=FRAMEWORK,
+                             specify an alternate name of the framework built with --enable-framework),
+[
+    PYTHONFRAMEWORK=${withval}
+    PYTHONFRAMEWORKDIR=${withval}.framework
+    PYTHONFRAMEWORKIDENTIFIER=org.python.`echo $withval | tr '[A-Z]' '[a-z]'`
+    ],[
+    PYTHONFRAMEWORK=Python
+    PYTHONFRAMEWORKDIR=Python.framework
+    PYTHONFRAMEWORKIDENTIFIER=org.python.python
+])
+dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
+AC_ARG_ENABLE(framework,
+              AC_HELP_STRING(--enable-framework@<:@=INSTALLDIR@:>@, Build (MacOSX|Darwin) framework),
+[
+	case $enableval in
+	yes)
+		enableval=/Library/Frameworks
+	esac
+	case $enableval in
+	no)
+		PYTHONFRAMEWORK=
+		PYTHONFRAMEWORKDIR=no-framework
+		PYTHONFRAMEWORKPREFIX=
+		PYTHONFRAMEWORKINSTALLDIR=
+		FRAMEWORKINSTALLFIRST=
+		FRAMEWORKINSTALLLAST=
+		FRAMEWORKALTINSTALLFIRST=
+		FRAMEWORKALTINSTALLLAST=
+		if test "x${prefix}" = "xNONE"; then
+			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
+		else
+			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
+		fi
+		enable_framework=
+		;;
+	*)
+		PYTHONFRAMEWORKPREFIX=$enableval
+		PYTHONFRAMEWORKINSTALLDIR=$PYTHONFRAMEWORKPREFIX/$PYTHONFRAMEWORKDIR
+		FRAMEWORKINSTALLFIRST="frameworkinstallstructure"
+		FRAMEWORKALTINSTALLFIRST="frameworkinstallstructure "
+		case "${UNIVERSAL_ARCHS}" in
+		all|3-way|intel)
+			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkinstallunixtools4way"
+			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkaltinstallunixtools4way"
+			;;
+		*)
+			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools"
+			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkaltinstallunixtools"
+			;;
+		esac
+
+		if test "x${prefix}" = "xNONE" ; then
+			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
+		else
+			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
+		fi
+		prefix=$PYTHONFRAMEWORKINSTALLDIR/Versions/$VERSION
+
+		# Add files for Mac specific code to the list of output
+		# files:
+		AC_CONFIG_FILES(Mac/Makefile)
+		AC_CONFIG_FILES(Mac/PythonLauncher/Makefile)
+		AC_CONFIG_FILES(Mac/Resources/framework/Info.plist)
+		AC_CONFIG_FILES(Mac/Resources/app/Info.plist)
+	esac
+	],[
+	PYTHONFRAMEWORK=
+	PYTHONFRAMEWORKDIR=no-framework
+	PYTHONFRAMEWORKPREFIX=
+	PYTHONFRAMEWORKINSTALLDIR=
+	FRAMEWORKINSTALLFIRST=
+	FRAMEWORKINSTALLLAST=
+	FRAMEWORKALTINSTALLFIRST=
+	FRAMEWORKALTINSTALLLAST=
+	if test "x${prefix}" = "xNONE" ; then
+		FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
+	else
+		FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
+	fi
+	enable_framework=
+
+	if test "$UNIVERSAL_ARCHS" = "all"
+	then
+		FRAMEWORKINSTALLLAST=update4wayuniversal
+		FRAMEWORKALTINSTALLLAST=update4wayuniversal
+	fi
+])
+AC_SUBST(PYTHONFRAMEWORK)
+AC_SUBST(PYTHONFRAMEWORKIDENTIFIER)
+AC_SUBST(PYTHONFRAMEWORKDIR)
+AC_SUBST(PYTHONFRAMEWORKPREFIX)
+AC_SUBST(PYTHONFRAMEWORKINSTALLDIR)
+AC_SUBST(FRAMEWORKINSTALLFIRST)
+AC_SUBST(FRAMEWORKINSTALLLAST)
+AC_SUBST(FRAMEWORKALTINSTALLFIRST)
+AC_SUBST(FRAMEWORKALTINSTALLLAST)
+AC_SUBST(FRAMEWORKUNIXTOOLSPREFIX)
+
+##AC_ARG_WITH(dyld,
+##            AC_HELP_STRING(--with-dyld,
+##                           Use (OpenStep|Rhapsody) dynamic linker))
+##
+# Set name for machine-dependent library files
+AC_SUBST(MACHDEP)
+AC_MSG_CHECKING(MACHDEP)
+if test -z "$MACHDEP"
+then
+	ac_sys_system=`uname -s`
+	if test "$ac_sys_system" = "AIX" \
+	-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then
+		ac_sys_release=`uname -v`
+	else
+		ac_sys_release=`uname -r`
+	fi
+	ac_md_system=`echo $ac_sys_system |
+			   tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'`
+	ac_md_release=`echo $ac_sys_release |
+			   tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'`
+	MACHDEP="$ac_md_system$ac_md_release"
+
+	case $MACHDEP in
+	cygwin*) MACHDEP="cygwin";;
+	darwin*) MACHDEP="darwin";;
+	atheos*) MACHDEP="atheos";;
+        irix646) MACHDEP="irix6";;
+	'')	MACHDEP="unknown";;
+	esac
+fi
+
+# Some systems cannot stand _XOPEN_SOURCE being defined at all; they
+# disable features if it is defined, without any means to access these
+# features as extensions. For these systems, we skip the definition of
+# _XOPEN_SOURCE. Before adding a system to the list to gain access to
+# some feature, make sure there is no alternative way to access this
+# feature. Also, when using wildcards, make sure you have verified the
+# need for not defining _XOPEN_SOURCE on all systems matching the
+# wildcard, and that the wildcard does not include future systems
+# (which may remove their limitations).
+dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
+case $ac_sys_system/$ac_sys_release in
+  # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
+  # even though select is a POSIX function. Reported by J. Ribbens.
+  # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
+  # In addition, Stefan Krah confirms that issue #1244610 exists through
+  # OpenBSD 4.6, but is fixed in 4.7.
+  OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123456@:>@)
+    define_xopen_source=no
+    # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
+    # also defined. This can be overridden by defining _BSD_SOURCE
+    # As this has a different meaning on Linux, only define it on OpenBSD
+    AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
+    ;;
+  OpenBSD/4.@<:@789@:>@)
+    # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
+    # also defined. This can be overridden by defining _BSD_SOURCE
+    # As this has a different meaning on Linux, only define it on OpenBSD
+    AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
+    ;;
+  # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
+  # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
+  # Marc Recht
+  NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6@<:@A-S@:>@)
+    define_xopen_source=no;;
+  # On Solaris 2.6, sys/wait.h is inconsistent in the usage
+  # of union __?sigval. Reported by Stuart Bishop.
+  SunOS/5.6)
+    define_xopen_source=no;;
+  # On UnixWare 7, u_long is never defined with _XOPEN_SOURCE,
+  # but used in /usr/include/netinet/tcp.h. Reported by Tim Rice.
+  # Reconfirmed for 7.1.4 by Martin v. Loewis.
+  OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-4@:>@)
+    define_xopen_source=no;;
+  # On OpenServer 5, u_short is never defined with _XOPEN_SOURCE,
+  # but used in struct sockaddr.sa_family. Reported by Tim Rice.
+  SCO_SV/3.2)
+    define_xopen_source=no;;
+  # On FreeBSD 4, the math functions C89 does not cover are never defined
+  # with _XOPEN_SOURCE and __BSD_VISIBLE does not re-enable them.
+  FreeBSD/4.*)
+    define_xopen_source=no;;
+  # On MacOS X 10.2, a bug in ncurses.h means that it craps out if
+  # _XOPEN_EXTENDED_SOURCE is defined. Apparently, this is fixed in 10.3, which
+  # identifies itself as Darwin/7.*
+  # On Mac OS X 10.4, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
+  # disables platform specific features beyond repair.
+  # On Mac OS X 10.3, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
+  # has no effect, don't bother defining them
+  Darwin/@<:@6789@:>@.*)
+    define_xopen_source=no;;
+  Darwin/1@<:@0-9@:>@.*)
+    define_xopen_source=no;;
+  # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
+  # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
+  # or has another value. By not (re)defining it, the defaults come in place.
+  AIX/4)
+    define_xopen_source=no;;
+  AIX/5)
+    if test `uname -r` -eq 1; then
+      define_xopen_source=no
+    fi
+    ;;
+  # On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
+  # defining NI_NUMERICHOST.
+  QNX/6.3.2)
+    define_xopen_source=no
+    ;;
+
+esac
+
+if test $define_xopen_source = yes
+then
+  # On Solaris w/ g++ it appears that _XOPEN_SOURCE has to be
+  # defined precisely as g++ defines it
+  # Furthermore, on Solaris 10, XPG6 requires the use of a C99
+  # compiler
+  case $ac_sys_system/$ac_sys_release in
+    SunOS/5.8|SunOS/5.9|SunOS/5.10|SunOS/5.11)
+      AC_DEFINE(_XOPEN_SOURCE, 500,
+                Define to the level of X/Open that your system supports)
+      ;;
+    *)
+      AC_DEFINE(_XOPEN_SOURCE, 600,
+                Define to the level of X/Open that your system supports)
+      ;;
+  esac
+
+  # On Tru64 Unix 4.0F, defining _XOPEN_SOURCE also requires
+  # definition of _XOPEN_SOURCE_EXTENDED and _POSIX_C_SOURCE, or else
+  # several APIs are not declared. Since this is also needed in some
+  # cases for HP-UX, we define it globally.
+  # except for Solaris 10, where it must not be defined,
+  # as it implies XPG4.2
+  case $ac_sys_system/$ac_sys_release in
+    SunOS/5.10|SunOS/5.11)
+      ;;
+    *)
+      AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1,
+      		Define to activate Unix95-and-earlier features)
+      ;;
+  esac
+
+  AC_DEFINE(_POSIX_C_SOURCE, 200112L, Define to activate features from IEEE Stds 1003.1-2001)
+
+fi
+
+#
+# SGI compilers allow the specification of the both the ABI and the
+# ISA on the command line.  Depending on the values of these switches,
+# different and often incompatable code will be generated.
+#
+# The SGI_ABI variable can be used to modify the CC and LDFLAGS and
+# thus supply support for various ABI/ISA combinations.  The MACHDEP
+# variable is also adjusted.
+#
+AC_SUBST(SGI_ABI)
+if test ! -z "$SGI_ABI"
+then
+        CC="cc $SGI_ABI"
+        LDFLAGS="$SGI_ABI $LDFLAGS"
+        MACHDEP=`echo "${MACHDEP}${SGI_ABI}" | sed 's/ *//g'`
+fi
+AC_MSG_RESULT($MACHDEP)
+
+# Record the configure-time value of MACOSX_DEPLOYMENT_TARGET,
+# it may influence the way we can build extensions, so distutils
+# needs to check it
+AC_SUBST(CONFIGURE_MACOSX_DEPLOYMENT_TARGET)
+AC_SUBST(EXPORT_MACOSX_DEPLOYMENT_TARGET)
+CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
+EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
+
+AC_MSG_CHECKING(machine type as reported by uname -m)
+ac_sys_machine=`uname -m`
+AC_MSG_RESULT($ac_sys_machine)
+
+# checks for alternative programs
+
+# compiler flags are generated in two sets, BASECFLAGS and OPT.  OPT is just
+# for debug/optimization stuff.  BASECFLAGS is for flags that are required
+# just to get things to compile and link.  Users are free to override OPT
+# when running configure or make.  The build should not break if they do.
+# BASECFLAGS should generally not be messed with, however.
+
+# XXX shouldn't some/most/all of this code be merged with the stuff later
+# on that fiddles with OPT and BASECFLAGS?
+AC_MSG_CHECKING(for --without-gcc)
+AC_ARG_WITH(gcc,
+            AC_HELP_STRING(--without-gcc,never use gcc),
+[
+	case $withval in
+	no)	CC=${CC:-cc}
+		without_gcc=yes;;
+	yes)	CC=gcc
+		without_gcc=no;;
+	*)	CC=$withval
+		without_gcc=$withval;;
+	esac], [
+	case $ac_sys_system in
+	AIX*)   CC=${CC:-xlc_r}
+		without_gcc=;;
+	*)	without_gcc=no;;
+	esac])
+AC_MSG_RESULT($without_gcc)
+
+# If the user switches compilers, we can't believe the cache
+if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
+then
+  AC_MSG_ERROR([cached CC is different -- throw away $cache_file
+(it is also a good idea to do 'make clean' before compiling)])
+fi
+
+AC_PROG_CC
+
+AC_SUBST(CXX)
+AC_SUBST(MAINCC)
+AC_MSG_CHECKING(for --with-cxx-main=<compiler>)
+AC_ARG_WITH(cxx_main,
+            AC_HELP_STRING([--with-cxx-main=<compiler>],
+                           [compile main() and link python executable with C++ compiler]),
+[
+
+	case $withval in
+	no)	with_cxx_main=no
+		MAINCC='$(CC)';;
+	yes)	with_cxx_main=yes
+		MAINCC='$(CXX)';;
+	*)	with_cxx_main=yes
+		MAINCC=$withval
+		if test -z "$CXX"
+		then
+			CXX=$withval
+		fi;;
+	esac], [
+	with_cxx_main=no
+	MAINCC='$(CC)'
+])
+AC_MSG_RESULT($with_cxx_main)
+
+preset_cxx="$CXX"
+if test -z "$CXX"
+then
+        case "$CC" in
+        gcc)    AC_PATH_PROG(CXX, [g++], [g++], [notfound]) ;;
+        cc)     AC_PATH_PROG(CXX, [c++], [c++], [notfound]) ;;
+        esac
+	if test "$CXX" = "notfound"
+	then
+		CXX=""
+	fi
+fi
+if test -z "$CXX"
+then
+	AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
+	if test "$CXX" = "notfound"
+	then
+		CXX=""
+	fi
+fi
+if test "$preset_cxx" != "$CXX"
+then
+        AC_MSG_WARN([
+
+  By default, distutils will build C++ extension modules with "$CXX".
+  If this is not intended, then set CXX on the configure command line.
+  ])
+fi
+
+
+# checks for UNIX variants that set C preprocessor variables
+AC_AIX
+
+# Check for unsupported systems
+case $ac_sys_system/$ac_sys_release in
+atheos*|Linux*/1*)
+   echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported.
+   echo See README for details.
+   exit 1;;
+esac
+
+AC_EXEEXT
+AC_MSG_CHECKING(for --with-suffix)
+AC_ARG_WITH(suffix,
+            AC_HELP_STRING(--with-suffix=.exe, set executable suffix),
+[
+	case $withval in
+	no)	EXEEXT=;;
+	yes)	EXEEXT=.exe;;
+	*)	EXEEXT=$withval;;
+	esac])
+AC_MSG_RESULT($EXEEXT)
+
+# Test whether we're running on a non-case-sensitive system, in which
+# case we give a warning if no ext is given
+AC_SUBST(BUILDEXEEXT)
+AC_MSG_CHECKING(for case-insensitive build directory)
+if test ! -d CaseSensitiveTestDir; then
+mkdir CaseSensitiveTestDir
+fi
+
+if test -d casesensitivetestdir
+then
+    AC_MSG_RESULT(yes)
+    BUILDEXEEXT=.exe
+else
+	AC_MSG_RESULT(no)
+	BUILDEXEEXT=$EXEEXT
+fi
+rmdir CaseSensitiveTestDir
+
+case $MACHDEP in
+bsdos*)
+    case $CC in
+    gcc) CC="$CC -D_HAVE_BSDI";;
+    esac;;
+esac
+
+case $ac_sys_system in
+hp*|HP*)
+    case $CC in
+    cc|*/cc) CC="$CC -Ae";;
+    esac;;
+SunOS*)
+    # Some functions have a prototype only with that define, e.g. confstr
+    AC_DEFINE(__EXTENSIONS__, 1, [Defined on Solaris to see additional function prototypes.])
+    ;;
+esac
+
+
+AC_SUBST(LIBRARY)
+AC_MSG_CHECKING(LIBRARY)
+if test -z "$LIBRARY"
+then
+	LIBRARY='libpython$(VERSION).a'
+fi
+AC_MSG_RESULT($LIBRARY)
+
+# LDLIBRARY is the name of the library to link against (as opposed to the
+# name of the library into which to insert object files). BLDLIBRARY is also
+# the library to link against, usually. On Mac OS X frameworks, BLDLIBRARY
+# is blank as the main program is not linked directly against LDLIBRARY.
+# LDLIBRARYDIR is the path to LDLIBRARY, which is made in a subdirectory. On
+# systems without shared libraries, LDLIBRARY is the same as LIBRARY
+# (defined in the Makefiles). On Cygwin LDLIBRARY is the import library,
+# DLLLIBRARY is the shared (i.e., DLL) library.
+#
+# RUNSHARED is used to run shared python without installed libraries
+#
+# INSTSONAME is the name of the shared library that will be use to install
+# on the system - some systems like version suffix, others don't
+AC_SUBST(LDLIBRARY)
+AC_SUBST(DLLLIBRARY)
+AC_SUBST(BLDLIBRARY)
+AC_SUBST(LDLIBRARYDIR)
+AC_SUBST(INSTSONAME)
+AC_SUBST(RUNSHARED)
+LDLIBRARY="$LIBRARY"
+BLDLIBRARY='$(LDLIBRARY)'
+INSTSONAME='$(LDLIBRARY)'
+DLLLIBRARY=''
+LDLIBRARYDIR=''
+RUNSHARED=''
+
+# LINKCC is the command that links the python executable -- default is $(CC).
+# If CXX is set, and if it is needed to link a main function that was
+# compiled with CXX, LINKCC is CXX instead. Always using CXX is undesirable:
+# python might then depend on the C++ runtime
+# This is altered for AIX in order to build the export list before
+# linking.
+AC_SUBST(LINKCC)
+AC_MSG_CHECKING(LINKCC)
+if test -z "$LINKCC"
+then
+	LINKCC='$(PURIFY) $(MAINCC)'
+	case $ac_sys_system in
+	AIX*)
+	   exp_extra="\"\""
+	   if test $ac_sys_release -ge 5 -o \
+		   $ac_sys_release -eq 4 -a `uname -r` -ge 2 ; then
+	       exp_extra="."
+	   fi
+	   LINKCC="\$(srcdir)/Modules/makexp_aix Modules/python.exp $exp_extra \$(LIBRARY); $LINKCC";;
+	QNX*)
+	   # qcc must be used because the other compilers do not
+	   # support -N.
+	   LINKCC=qcc;;
+	esac
+fi
+AC_MSG_RESULT($LINKCC)
+
+# GNULD is set to "yes" if the GNU linker is used.  If this goes wrong
+# make sure we default having it set to "no": this is used by
+# distutils.unixccompiler to know if it should add --enable-new-dtags
+# to linker command lines, and failing to detect GNU ld simply results
+# in the same bahaviour as before.
+AC_SUBST(GNULD)
+AC_MSG_CHECKING(for GNU ld)
+ac_prog=ld
+if test "$GCC" = yes; then
+       ac_prog=`$CC -print-prog-name=ld`
+fi
+case `"$ac_prog" -V 2>&1 < /dev/null` in
+      *GNU*)
+          GNULD=yes;;
+      *)
+          GNULD=no;;
+esac
+AC_MSG_RESULT($GNULD)
+
+AC_MSG_CHECKING(for --enable-shared)
+AC_ARG_ENABLE(shared,
+              AC_HELP_STRING(--enable-shared, disable/enable building shared python library))
+
+if test -z "$enable_shared"
+then
+  case $ac_sys_system in
+  CYGWIN* | atheos*)
+    enable_shared="yes";;
+  *)
+    enable_shared="no";;
+  esac
+fi
+AC_MSG_RESULT($enable_shared)
+
+AC_MSG_CHECKING(for --enable-profiling)
+AC_ARG_ENABLE(profiling,
+              AC_HELP_STRING(--enable-profiling, enable C-level code profiling),
+[ac_save_cc="$CC"
+ CC="$CC -pg"
+ AC_TRY_RUN([int main() { return 0; }],
+   ac_enable_profiling="yes",
+   ac_enable_profiling="no",
+   ac_enable_profiling="no")
+ CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_enable_profiling)
+
+case "$ac_enable_profiling" in
+    "yes")
+	BASECFLAGS="-pg $BASECFLAGS"
+	LDFLAGS="-pg $LDFLAGS"
+    ;;
+esac
+
+AC_MSG_CHECKING(LDLIBRARY)
+
+# MacOSX framework builds need more magic. LDLIBRARY is the dynamic
+# library that we build, but we do not want to link against it (we
+# will find it with a -framework option). For this reason there is an
+# extra variable BLDLIBRARY against which Python and the extension
+# modules are linked, BLDLIBRARY. This is normally the same as
+# LDLIBRARY, but empty for MacOSX framework builds.
+if test "$enable_framework"
+then
+  LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+  RUNSHARED=DYLD_FRAMEWORK_PATH="`pwd`:$DYLD_FRAMEWORK_PATH"
+  BLDLIBRARY=''
+else
+  BLDLIBRARY='$(LDLIBRARY)'
+fi
+
+# Other platforms follow
+if test $enable_shared = "yes"; then
+  AC_DEFINE(Py_ENABLE_SHARED, 1, [Defined if Python is built as a shared library.])
+  case $ac_sys_system in
+    CYGWIN*)
+          LDLIBRARY='libpython$(VERSION).dll.a'
+          DLLLIBRARY='libpython$(VERSION).dll'
+          ;;
+    SunOS*)
+	  LDLIBRARY='libpython$(VERSION).so'
+	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  INSTSONAME="$LDLIBRARY".$SOVERSION
+          ;;
+    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*)
+	  LDLIBRARY='libpython$(VERSION).so'
+	  BLDLIBRARY='-L. -lpython$(VERSION)'
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  case $ac_sys_system in
+	      FreeBSD*)
+		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
+		;;
+	  esac
+	  INSTSONAME="$LDLIBRARY".$SOVERSION
+	  ;;
+    hp*|HP*)
+	  case `uname -m` in
+		ia64)
+			LDLIBRARY='libpython$(VERSION).so'
+			;;
+		*)
+			LDLIBRARY='libpython$(VERSION).sl'
+			;;
+	  esac
+	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
+	  RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
+	  ;;
+    OSF*)
+	  LDLIBRARY='libpython$(VERSION).so'
+	  BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  ;;
+    atheos*)
+	  LDLIBRARY='libpython$(VERSION).so'
+	  BLDLIBRARY='-L. -lpython$(VERSION)'
+	  RUNSHARED=DLL_PATH=`pwd`:${DLL_PATH:-/atheos/sys/libs:/atheos/autolnk/lib}
+	  ;;
+    Darwin*)
+    	LDLIBRARY='libpython$(VERSION).dylib'
+	BLDLIBRARY='-L. -lpython$(VERSION)'
+	RUNSHARED='DYLD_LIBRARY_PATH=`pwd`:${DYLD_LIBRARY_PATH}'
+	;;
+    AIX*)
+	LDLIBRARY='libpython$(VERSION).so'
+	RUNSHARED=LIBPATH=`pwd`:${LIBPATH}
+	;;
+
+  esac
+else # shared is disabled
+  case $ac_sys_system in
+    CYGWIN*)
+          BLDLIBRARY='$(LIBRARY)'
+          LDLIBRARY='libpython$(VERSION).dll.a'
+          ;;
+  esac
+fi
+
+AC_MSG_RESULT($LDLIBRARY)
+
+AC_PROG_RANLIB
+AC_SUBST(AR)
+AC_CHECK_PROGS(AR, ar aal, ar)
+
+# tweak ARFLAGS only if the user didn't set it on the command line
+AC_SUBST(ARFLAGS)
+if test -z "$ARFLAGS"
+then
+        ARFLAGS="rc"
+fi
+
+AC_SUBST(SVNVERSION)
+AC_CHECK_PROG(SVNVERSION, svnversion, found, not-found)
+if test $SVNVERSION = found
+then
+	SVNVERSION="svnversion \$(srcdir)"
+else
+	SVNVERSION="echo Unversioned directory"
+fi
+
+AC_SUBST(HGVERSION)
+AC_SUBST(HGTAG)
+AC_SUBST(HGBRANCH)
+AC_CHECK_PROG(HAS_HG, hg, found, not-found)
+if test $HAS_HG = found
+then
+    HGVERSION="hg id -i \$(srcdir)"
+    HGTAG="hg id -t \$(srcdir)"
+    HGBRANCH="hg id -b \$(srcdir)"
+else
+    HGVERSION=""
+    HGTAG=""
+    HGBRANCH=""
+fi
+
+case $MACHDEP in
+bsdos*|hp*|HP*)
+	# install -d does not work on BSDI or HP-UX
+	if test -z "$INSTALL"
+	then
+		INSTALL="${srcdir}/install-sh -c"
+	fi
+esac
+AC_PROG_INSTALL
+
+# Not every filesystem supports hard links
+AC_SUBST(LN)
+if test -z "$LN" ; then
+	case $ac_sys_system in
+		CYGWIN*) LN="ln -s";;
+		atheos*) LN="ln -s";;
+		*) LN=ln;;
+	esac
+fi
+
+# Check for --with-pydebug
+AC_MSG_CHECKING(for --with-pydebug)
+AC_ARG_WITH(pydebug,
+            AC_HELP_STRING(--with-pydebug, build with Py_DEBUG defined),
+[
+if test "$withval" != no
+then
+  AC_DEFINE(Py_DEBUG, 1,
+  [Define if you want to build an interpreter with many run-time checks.])
+  AC_MSG_RESULT(yes);
+  Py_DEBUG='true'
+else AC_MSG_RESULT(no); Py_DEBUG='false'
+fi],
+[AC_MSG_RESULT(no)])
+
+# XXX Shouldn't the code above that fiddles with BASECFLAGS and OPT be
+# merged with this chunk of code?
+
+# Optimizer/debugger flags
+# ------------------------
+# (The following bit of code is complicated enough - please keep things
+# indented properly.  Just pretend you're editing Python code. ;-)
+
+# There are two parallel sets of case statements below, one that checks to
+# see if OPT was set and one that does BASECFLAGS setting based upon
+# compiler and platform.  BASECFLAGS tweaks need to be made even if the
+# user set OPT.
+
+# tweak OPT based on compiler and platform, only if the user didn't set
+# it on the command line
+AC_SUBST(OPT)
+if test "${OPT-unset}" = "unset"
+then
+    case $GCC in
+    yes)
+        if test "$CC" != 'g++' ; then
+	    STRICT_PROTO="-Wstrict-prototypes"
+	fi
+        # For gcc 4.x we need to use -fwrapv so lets check if its supported
+        if "$CC" -v --help 2>/dev/null |grep -- -fwrapv > /dev/null; then
+           WRAP="-fwrapv"
+        fi
+	case $ac_cv_prog_cc_g in
+	yes)
+	    if test "$Py_DEBUG" = 'true' ; then
+		# Optimization messes up debuggers, so turn it off for
+		# debug builds.
+		OPT="-g -Wall $STRICT_PROTO"
+	    else
+		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO"
+	    fi
+	    ;;
+	*)
+	    OPT="-O3 -Wall $STRICT_PROTO"
+	    ;;
+	esac
+	case $ac_sys_system in
+	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
+	    ;;
+        esac
+	;;
+
+    *)
+	OPT="-O"
+	;;
+    esac
+fi
+
+AC_SUBST(BASECFLAGS)
+
+# The -arch flags for universal builds on OSX
+UNIVERSAL_ARCH_FLAGS=
+AC_SUBST(UNIVERSAL_ARCH_FLAGS)
+
+# tweak BASECFLAGS based on compiler and platform
+case $GCC in
+yes)
+    # Python doesn't violate C99 aliasing rules, but older versions of
+    # GCC produce warnings for legal Python code.  Enable
+    # -fno-strict-aliasing on versions of GCC that support but produce
+    # warnings.  See Issue3326
+    AC_MSG_CHECKING(whether $CC accepts and needs -fno-strict-aliasing)
+     ac_save_cc="$CC"
+     CC="$CC -fno-strict-aliasing"
+     save_CFLAGS="$CFLAGS"
+     AC_CACHE_VAL(ac_cv_no_strict_aliasing,
+       AC_COMPILE_IFELSE(
+         [
+	   AC_LANG_PROGRAM([[]], [[]])
+	 ],[
+	   CC="$ac_save_cc -fstrict-aliasing"
+           CFLAGS="$CFLAGS -Werror -Wstrict-aliasing"
+           AC_COMPILE_IFELSE(
+	     [
+	       AC_LANG_PROGRAM([[void f(int **x) {}]],
+	         [[double *x; f((int **) &x);]])
+	     ],[
+	       ac_cv_no_strict_aliasing=no
+	     ],[
+               ac_cv_no_strict_aliasing=yes
+	     ])
+	 ],[
+	   ac_cv_no_strict_aliasing=no
+	 ]))
+     CFLAGS="$save_CFLAGS"
+     CC="$ac_save_cc"
+    AC_MSG_RESULT($ac_cv_no_strict_aliasing)
+    if test $ac_cv_no_strict_aliasing = yes
+    then
+      BASECFLAGS="$BASECFLAGS -fno-strict-aliasing"
+    fi
+
+    # if using gcc on alpha, use -mieee to get (near) full IEEE 754
+    # support.  Without this, treatment of subnormals doesn't follow
+    # the standard.
+    case $ac_sys_machine in
+         alpha*)
+                BASECFLAGS="$BASECFLAGS -mieee"
+                ;;
+    esac
+
+    case $ac_sys_system in
+	SCO_SV*)
+	    BASECFLAGS="$BASECFLAGS -m486 -DSCO5"
+	    ;;
+	# is there any other compiler on Darwin besides gcc?
+	Darwin*)
+	    # -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd
+	    # used to be here, but non-Apple gcc doesn't accept them.
+            if test "${CC}" = gcc
+	    then
+		AC_MSG_CHECKING(which compiler should be used)
+		case "${UNIVERSALSDK}" in
+		*/MacOSX10.4u.sdk)
+			# Build using 10.4 SDK, force usage of gcc when the
+			# compiler is gcc, otherwise the user will get very
+			# confusing error messages when building on OSX 10.6
+			CC=gcc-4.0
+			CPP=cpp-4.0
+			;;
+		esac
+		AC_MSG_RESULT($CC)
+	    fi
+
+
+	    if test "${enable_universalsdk}"; then
+		UNIVERSAL_ARCH_FLAGS=""
+	        if test "$UNIVERSAL_ARCHS" = "32-bit" ; then
+		   ARCH_RUN_32BIT=""
+		   UNIVERSAL_ARCH_FLAGS="-arch ppc -arch i386"
+
+	         elif test "$UNIVERSAL_ARCHS" = "64-bit" ; then
+		   ARCH_RUN_32BIT="true"
+		   UNIVERSAL_ARCH_FLAGS="-arch ppc64 -arch x86_64"
+
+	         elif test "$UNIVERSAL_ARCHS" = "all" ; then
+		   ARCH_RUN_32BIT="/usr/bin/arch -i386 -ppc"
+		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch ppc64 -arch x86_64"
+		   LIPO_32BIT_FLAGS="-extract i386 -extract ppc7400"
+		   LIPO_64BIT_FLAGS="-extract x86_64 -extract ppc64"
+
+	         elif test "$UNIVERSAL_ARCHS" = "intel" ; then
+		   ARCH_RUN_32BIT="/usr/bin/arch -i386"
+		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch x86_64"
+		   LIPO_32BIT_FLAGS="-extract i386"
+		   LIPO_64BIT_FLAGS="-extract x86_64"
+
+	         elif test "$UNIVERSAL_ARCHS" = "3-way" ; then
+		   ARCH_RUN_32BIT="/usr/bin/arch -i386 -ppc"
+		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch x86_64"
+		   LIPO_32BIT_FLAGS="-extract i386 -extract ppc7400"
+		   LIPO_64BIT_FLAGS="-extract x86_64"
+
+		 else
+	           AC_MSG_ERROR([proper usage is --with-universal-arch=32-bit|64-bit|all|intel|3-way])
+
+		 fi
+
+
+		CFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${CFLAGS}"
+		if test "${UNIVERSALSDK}" != "/"
+		then
+			CFLAGS="-isysroot ${UNIVERSALSDK} ${CFLAGS}"
+			LDFLAGS="-isysroot ${UNIVERSALSDK} ${LDFLAGS}"
+			CPPFLAGSFLAGS="-isysroot ${UNIVERSALSDK} ${CPPFLAGS}"
+		fi
+	    fi
+
+	    # Calculate the right deployment target for this build.
+	    #
+	    cur_target=`sw_vers -productVersion | sed 's/\(10\.[[0-9]]*\).*/\1/'`
+	    if test ${cur_target} '>' 10.2; then
+		    cur_target=10.3
+		    if test ${enable_universalsdk}; then
+			    if test "${UNIVERSAL_ARCHS}" = "all"; then
+				    # Ensure that the default platform for a
+				    # 4-way universal build is OSX 10.5,
+				    # that's the first OS release where
+				    # 4-way builds make sense.
+				    cur_target='10.5'
+
+			    elif test "${UNIVERSAL_ARCHS}" = "3-way"; then
+				    cur_target='10.5'
+
+			    elif test "${UNIVERSAL_ARCHS}" = "intel"; then
+				    cur_target='10.5'
+
+			    elif test "${UNIVERSAL_ARCHS}" = "64-bit"; then
+				    cur_target='10.5'
+			    fi
+		    else
+			    if test `/usr/bin/arch` = "i386"; then
+				    # On Intel macs default to a deployment
+				    # target of 10.4, that's the first OSX
+				    # release with Intel support.
+				    cur_target="10.4"
+			    fi
+		    fi
+	    fi
+	    CONFIGURE_MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET-${cur_target}}
+
+	    # Make sure that MACOSX_DEPLOYMENT_TARGET is set in the
+	    # environment with a value that is the same as what we'll use
+	    # in the Makefile to ensure that we'll get the same compiler
+	    # environment during configure and build time.
+	    MACOSX_DEPLOYMENT_TARGET="$CONFIGURE_MACOSX_DEPLOYMENT_TARGET"
+	    export MACOSX_DEPLOYMENT_TARGET
+	    EXPORT_MACOSX_DEPLOYMENT_TARGET=''
+
+	    ;;
+	OSF*)
+	    BASECFLAGS="$BASECFLAGS -mieee"
+	    ;;
+    esac
+    ;;
+
+*)
+    case $ac_sys_system in
+    OpenUNIX*|UnixWare*)
+	BASECFLAGS="$BASECFLAGS -K pentium,host,inline,loop_unroll,alloca "
+	;;
+    OSF*)
+	BASECFLAGS="$BASECFLAGS -ieee -std"
+    	;;
+    SCO_SV*)
+	BASECFLAGS="$BASECFLAGS -belf -Ki486 -DSCO5"
+	;;
+    esac
+    ;;
+esac
+
+if test "$Py_DEBUG" = 'true'; then
+  :
+else
+  OPT="-DNDEBUG $OPT"
+fi
+
+if test "$ac_arch_flags"
+then
+	BASECFLAGS="$BASECFLAGS $ac_arch_flags"
+fi
+
+# disable check for icc since it seems to pass, but generates a warning
+if test "$CC" = icc
+then
+  ac_cv_opt_olimit_ok=no
+fi
+
+AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)
+AC_CACHE_VAL(ac_cv_opt_olimit_ok,
+[ac_save_cc="$CC"
+CC="$CC -OPT:Olimit=0"
+AC_TRY_RUN([int main() { return 0; }],
+  ac_cv_opt_olimit_ok=yes,
+  ac_cv_opt_olimit_ok=no,
+  ac_cv_opt_olimit_ok=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_opt_olimit_ok)
+if test $ac_cv_opt_olimit_ok = yes; then
+    case $ac_sys_system in
+	# XXX is this branch needed? On MacOSX 10.2.2 the result of the
+	# olimit_ok test is "no".  Is it "yes" in some other Darwin-esque
+	# environment?
+        Darwin*)
+	    ;;
+        *)
+	    BASECFLAGS="$BASECFLAGS -OPT:Olimit=0"
+	    ;;
+    esac
+else
+  AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)
+  AC_CACHE_VAL(ac_cv_olimit_ok,
+  [ac_save_cc="$CC"
+  CC="$CC -Olimit 1500"
+  AC_TRY_RUN([int main() { return 0; }],
+    ac_cv_olimit_ok=yes,
+    ac_cv_olimit_ok=no,
+    ac_cv_olimit_ok=no)
+  CC="$ac_save_cc"])
+  AC_MSG_RESULT($ac_cv_olimit_ok)
+  if test $ac_cv_olimit_ok = yes; then
+    BASECFLAGS="$BASECFLAGS -Olimit 1500"
+  fi
+fi
+
+# Check whether GCC supports PyArg_ParseTuple format
+if test "$GCC" = "yes"
+then
+  AC_MSG_CHECKING(whether gcc supports ParseTuple __format__)
+  save_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -Werror"
+  AC_TRY_COMPILE([
+    void f(char*,...)__attribute((format(PyArg_ParseTuple, 1, 2)));
+  ],,
+  AC_DEFINE(HAVE_ATTRIBUTE_FORMAT_PARSETUPLE, 1, [Define if GCC supports __attribute__((format(PyArg_ParseTuple, 2, 3)))])
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+  )
+  CFLAGS=$save_CFLAGS
+fi
+
+# On some compilers, pthreads are available without further options
+# (e.g. MacOS X). On some of these systems, the compiler will not
+# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
+# So we have to see first whether pthreads are available without
+# options before we can check whether -Kpthread improves anything.
+AC_MSG_CHECKING(whether pthreads are available without options)
+AC_CACHE_VAL(ac_cv_pthread_is_default,
+[AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+],
+[
+  ac_cv_pthread_is_default=yes
+  ac_cv_kthread=no
+  ac_cv_pthread=no
+],
+  ac_cv_pthread_is_default=no,
+  ac_cv_pthread_is_default=no)
+])
+AC_MSG_RESULT($ac_cv_pthread_is_default)
+
+
+if test $ac_cv_pthread_is_default = yes
+then
+  ac_cv_kpthread=no
+else
+# -Kpthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -Kpthread,
+# so we need to run a program to see whether it really made the
+# function available.
+AC_MSG_CHECKING(whether $CC accepts -Kpthread)
+AC_CACHE_VAL(ac_cv_kpthread,
+[ac_save_cc="$CC"
+CC="$CC -Kpthread"
+AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+],
+  ac_cv_kpthread=yes,
+  ac_cv_kpthread=no,
+  ac_cv_kpthread=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_kpthread)
+fi
+
+if test $ac_cv_kpthread = no -a $ac_cv_pthread_is_default = no
+then
+# -Kthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -Kthread,
+# so we need to run a program to see whether it really made the
+# function available.
+AC_MSG_CHECKING(whether $CC accepts -Kthread)
+AC_CACHE_VAL(ac_cv_kthread,
+[ac_save_cc="$CC"
+CC="$CC -Kthread"
+AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+],
+  ac_cv_kthread=yes,
+  ac_cv_kthread=no,
+  ac_cv_kthread=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_kthread)
+fi
+
+if test $ac_cv_kthread = no -a $ac_cv_pthread_is_default = no
+then
+# -pthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -pthread,
+# so we need to run a program to see whether it really made the
+# function available.
+AC_MSG_CHECKING(whether $CC accepts -pthread)
+AC_CACHE_VAL(ac_cv_thread,
+[ac_save_cc="$CC"
+CC="$CC -pthread"
+AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  (void)pthread_detach(p);
+  return 0;
+}
+],
+  ac_cv_pthread=yes,
+  ac_cv_pthread=no,
+  ac_cv_pthread=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_pthread)
+fi
+
+# If we have set a CC compiler flag for thread support then
+# check if it works for CXX, too.
+ac_cv_cxx_thread=no
+if test ! -z "$CXX"
+then
+AC_MSG_CHECKING(whether $CXX also accepts flags for thread support)
+ac_save_cxx="$CXX"
+
+if test "$ac_cv_kpthread" = "yes"
+then
+  CXX="$CXX -Kpthread"
+  ac_cv_cxx_thread=yes
+elif test "$ac_cv_kthread" = "yes"
+then
+  CXX="$CXX -Kthread"
+  ac_cv_cxx_thread=yes
+elif test "$ac_cv_pthread" = "yes"
+then
+  CXX="$CXX -pthread"
+  ac_cv_cxx_thread=yes
+fi
+
+if test $ac_cv_cxx_thread = yes
+then
+  echo 'void foo();int main(){foo();}void foo(){}' > conftest.$ac_ext
+  $CXX -c conftest.$ac_ext 2>&5
+  if $CXX -o conftest$ac_exeext conftest.$ac_objext 2>&5 \
+     && test -s conftest$ac_exeext && ./conftest$ac_exeext
+  then
+    ac_cv_cxx_thread=yes
+  else
+    ac_cv_cxx_thread=no
+  fi
+  rm -fr conftest*
+fi
+AC_MSG_RESULT($ac_cv_cxx_thread)
+fi
+CXX="$ac_save_cxx"
+
+dnl # check for ANSI or K&R ("traditional") preprocessor
+dnl AC_MSG_CHECKING(for C preprocessor type)
+dnl AC_TRY_COMPILE([
+dnl #define spam(name, doc) {#name, &name, #name "() -- " doc}
+dnl int foo;
+dnl struct {char *name; int *addr; char *doc;} desc = spam(foo, "something");
+dnl ], [;], cpp_type=ansi, AC_DEFINE(HAVE_OLD_CPP) cpp_type=traditional)
+dnl AC_MSG_RESULT($cpp_type)
+
+# checks for header files
+AC_HEADER_STDC
+AC_CHECK_HEADERS(asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
+fcntl.h grp.h \
+ieeefp.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
+shadow.h signal.h stdint.h stropts.h termios.h thread.h \
+unistd.h utime.h \
+sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
+sys/lock.h sys/mkdev.h sys/modem.h \
+sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
+sys/termio.h sys/time.h \
+sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
+sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
+bluetooth/bluetooth.h linux/tipc.h)
+AC_HEADER_DIRENT
+AC_HEADER_MAJOR
+
+# On Solaris, term.h requires curses.h
+AC_CHECK_HEADERS(term.h,,,[
+#ifdef HAVE_CURSES_H
+#include <curses.h>
+#endif
+])
+
+# On Linux, netlink.h requires asm/types.h
+AC_CHECK_HEADERS(linux/netlink.h,,,[
+#ifdef HAVE_ASM_TYPES_H
+#include <asm/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+])
+
+# checks for typedefs
+was_it_defined=no
+AC_MSG_CHECKING(for clock_t in time.h)
+AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, [
+    AC_DEFINE(clock_t, long, [Define to 'long' if <time.h> doesn't define.])
+])
+AC_MSG_RESULT($was_it_defined)
+
+# Check whether using makedev requires defining _OSF_SOURCE
+AC_MSG_CHECKING(for makedev)
+AC_TRY_LINK([
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#else
+#include <sys/types.h>
+#endif ],
+	    [ makedev(0, 0) ],
+	    ac_cv_has_makedev=yes,
+	    ac_cv_has_makedev=no)
+if test "$ac_cv_has_makedev" = "no"; then
+    # we didn't link, try if _OSF_SOURCE will allow us to link
+    AC_TRY_LINK([
+#define _OSF_SOURCE 1
+#include <sys/types.h>
+    ],
+    [ makedev(0, 0) ],
+    ac_cv_has_makedev=yes,
+    ac_cv_has_makedev=no)
+    if test "$ac_cv_has_makedev" = "yes"; then
+        AC_DEFINE(_OSF_SOURCE, 1, [Define _OSF_SOURCE to get the makedev macro.])
+    fi
+fi
+AC_MSG_RESULT($ac_cv_has_makedev)
+if test "$ac_cv_has_makedev" = "yes"; then
+    AC_DEFINE(HAVE_MAKEDEV, 1, [Define this if you have the makedev macro.])
+fi
+
+# Enabling LFS on Solaris (2.6 to 9) with gcc 2.95 triggers a bug in
+# the system headers: If _XOPEN_SOURCE and _LARGEFILE_SOURCE are
+# defined, but the compiler does not support pragma redefine_extname,
+# and _LARGEFILE64_SOURCE is not defined, the headers refer to 64-bit
+# structures (such as rlimit64) without declaring them. As a
+# work-around, disable LFS on such configurations
+
+use_lfs=yes
+AC_MSG_CHECKING(Solaris LFS bug)
+AC_TRY_COMPILE([
+#define _LARGEFILE_SOURCE 1
+#define _FILE_OFFSET_BITS 64
+#include <sys/resource.h>
+],struct rlimit foo;,sol_lfs_bug=no,sol_lfs_bug=yes)
+AC_MSG_RESULT($sol_lfs_bug)
+if test "$sol_lfs_bug" = "yes"; then
+  use_lfs=no
+fi
+
+if test "$use_lfs" = "yes"; then
+# Two defines needed to enable largefile support on various platforms
+# These may affect some typedefs
+case $ac_sys_system/$ac_sys_release in
+AIX*)
+    AC_DEFINE(_LARGE_FILES, 1,
+    [This must be defined on AIX systems to enable large file support.])
+    ;;
+esac
+AC_DEFINE(_LARGEFILE_SOURCE, 1,
+[This must be defined on some systems to enable large file support.])
+AC_DEFINE(_FILE_OFFSET_BITS, 64,
+[This must be set to 64 on some systems to enable large file support.])
+fi
+
+# Add some code to confdefs.h so that the test for off_t works on SCO
+cat >> confdefs.h <<\EOF
+#if defined(SCO_DS)
+#undef _OFF_T
+#endif
+EOF
+
+# Type availability checks
+AC_TYPE_MODE_T
+AC_TYPE_OFF_T
+AC_TYPE_PID_T
+AC_TYPE_SIGNAL
+AC_TYPE_SIZE_T
+AC_TYPE_UID_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_INT32_T
+AC_TYPE_INT64_T
+AC_CHECK_TYPE(ssize_t,
+  AC_DEFINE(HAVE_SSIZE_T, 1, Define if your compiler provides ssize_t),,)
+
+# Sizes of various common basic types
+# ANSI C requires sizeof(char) == 1, so no need to check it
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(void *, 4)
+AC_CHECK_SIZEOF(short, 2)
+AC_CHECK_SIZEOF(float, 4)
+AC_CHECK_SIZEOF(double, 8)
+AC_CHECK_SIZEOF(fpos_t, 4)
+AC_CHECK_SIZEOF(size_t, 4)
+AC_CHECK_SIZEOF(pid_t, 4)
+
+AC_MSG_CHECKING(for long long support)
+have_long_long=no
+AC_TRY_COMPILE([], [long long x; x = (long long)0;], [
+  AC_DEFINE(HAVE_LONG_LONG, 1, [Define this if you have the type long long.])
+  have_long_long=yes
+])
+AC_MSG_RESULT($have_long_long)
+if test "$have_long_long" = yes ; then
+AC_CHECK_SIZEOF(long long, 8)
+fi
+
+AC_MSG_CHECKING(for long double support)
+have_long_double=no
+AC_TRY_COMPILE([], [long double x; x = (long double)0;], [
+  AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define this if you have the type long double.])
+  have_long_double=yes
+])
+AC_MSG_RESULT($have_long_double)
+if test "$have_long_double" = yes ; then
+AC_CHECK_SIZEOF(long double, 16)
+fi
+
+
+AC_MSG_CHECKING(for _Bool support)
+have_c99_bool=no
+AC_TRY_COMPILE([], [_Bool x; x = (_Bool)0;], [
+  AC_DEFINE(HAVE_C99_BOOL, 1, [Define this if you have the type _Bool.])
+  have_c99_bool=yes
+])
+AC_MSG_RESULT($have_c99_bool)
+if test "$have_c99_bool" = yes ; then
+AC_CHECK_SIZEOF(_Bool, 1)
+fi
+
+AC_CHECK_TYPES(uintptr_t,
+   [AC_CHECK_SIZEOF(uintptr_t, 4)],
+   [], [#ifdef HAVE_STDINT_H
+        #include <stdint.h>
+        #endif
+        #ifdef HAVE_INTTYPES_H
+        #include <inttypes.h>
+        #endif])
+
+
+# Hmph. AC_CHECK_SIZEOF() doesn't include <sys/types.h>.
+AC_MSG_CHECKING(size of off_t)
+AC_CACHE_VAL(ac_cv_sizeof_off_t,
+[AC_TRY_RUN([#include <stdio.h>
+#include <sys/types.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(off_t));
+  exit(0);
+}],
+ac_cv_sizeof_off_t=`cat conftestval`,
+ac_cv_sizeof_off_t=0,
+ac_cv_sizeof_off_t=4)
+])
+AC_MSG_RESULT($ac_cv_sizeof_off_t)
+AC_DEFINE_UNQUOTED(SIZEOF_OFF_T, $ac_cv_sizeof_off_t,
+[The number of bytes in an off_t.])
+
+AC_MSG_CHECKING(whether to enable large file support)
+if test "$have_long_long" = yes
+then
+if test "$ac_cv_sizeof_off_t" -gt "$ac_cv_sizeof_long" -a \
+	"$ac_cv_sizeof_long_long" -ge "$ac_cv_sizeof_off_t"; then
+  AC_DEFINE(HAVE_LARGEFILE_SUPPORT, 1,
+  [Defined to enable large file support when an off_t is bigger than a long
+   and long long is available and at least as big as an off_t. You may need
+   to add some flags for configuration and compilation to enable this mode.
+   (For Solaris and Linux, the necessary defines are already defined.)])
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+else
+  AC_MSG_RESULT(no)
+fi
+
+# AC_CHECK_SIZEOF() doesn't include <time.h>.
+AC_MSG_CHECKING(size of time_t)
+AC_CACHE_VAL(ac_cv_sizeof_time_t,
+[AC_TRY_RUN([#include <stdio.h>
+#include <time.h>
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(time_t));
+  exit(0);
+}],
+ac_cv_sizeof_time_t=`cat conftestval`,
+ac_cv_sizeof_time_t=0,
+ac_cv_sizeof_time_t=4)
+])
+AC_MSG_RESULT($ac_cv_sizeof_time_t)
+AC_DEFINE_UNQUOTED(SIZEOF_TIME_T, $ac_cv_sizeof_time_t,
+[The number of bytes in a time_t.])
+
+
+# if have pthread_t then define SIZEOF_PTHREAD_T
+ac_save_cc="$CC"
+if test "$ac_cv_kpthread" = "yes"
+then CC="$CC -Kpthread"
+elif test "$ac_cv_kthread" = "yes"
+then CC="$CC -Kthread"
+elif test "$ac_cv_pthread" = "yes"
+then CC="$CC -pthread"
+fi
+AC_MSG_CHECKING(for pthread_t)
+have_pthread_t=no
+AC_TRY_COMPILE([#include <pthread.h>], [pthread_t x; x = *(pthread_t*)0;], have_pthread_t=yes)
+AC_MSG_RESULT($have_pthread_t)
+if test "$have_pthread_t" = yes ; then
+  # AC_CHECK_SIZEOF() doesn't include <pthread.h>.
+  AC_MSG_CHECKING(size of pthread_t)
+  AC_CACHE_VAL(ac_cv_sizeof_pthread_t,
+  [AC_TRY_RUN([#include <stdio.h>
+#include <pthread.h>
+  main()
+  {
+    FILE *f=fopen("conftestval", "w");
+    if (!f) exit(1);
+    fprintf(f, "%d\n", sizeof(pthread_t));
+    exit(0);
+  }],
+  ac_cv_sizeof_pthread_t=`cat conftestval`,
+  ac_cv_sizeof_pthread_t=0,
+  ac_cv_sizeof_pthread_t=4)
+  ])
+  AC_MSG_RESULT($ac_cv_sizeof_pthread_t)
+  AC_DEFINE_UNQUOTED(SIZEOF_PTHREAD_T, $ac_cv_sizeof_pthread_t,
+   [The number of bytes in a pthread_t.])
+fi
+CC="$ac_save_cc"
+
+
+
+AC_SUBST(OTHER_LIBTOOL_OPT)
+case $ac_sys_system/$ac_sys_release in
+  Darwin/@<:@01567@:>@\..*)
+    OTHER_LIBTOOL_OPT="-prebind -seg1addr 0x10000000"
+    ;;
+  Darwin/*)
+    OTHER_LIBTOOL_OPT=""
+    ;;
+esac
+
+
+ARCH_RUN_32BIT=""
+AC_SUBST(LIBTOOL_CRUFT)
+case $ac_sys_system/$ac_sys_release in
+  Darwin/@<:@01567@:>@\..*)
+    LIBTOOL_CRUFT="-framework System -lcc_dynamic"
+    if test "${enable_universalsdk}"; then
+	    :
+    else
+        LIBTOOL_CRUFT="${LIBTOOL_CRUFT} -arch_only `/usr/bin/arch`"
+    fi
+    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
+  Darwin/*)
+    gcc_version=`gcc -dumpversion`
+    if test ${gcc_version} '<' 4.0
+        then
+            LIBTOOL_CRUFT="-lcc_dynamic"
+        else
+            LIBTOOL_CRUFT=""
+    fi
+    AC_TRY_RUN([
+    #include <unistd.h>
+    int main(int argc, char*argv[])
+    {
+      if (sizeof(long) == 4) {
+    	  return 0;
+      } else {
+      	  return 1;
+      }
+    }
+    ], ac_osx_32bit=yes,
+       ac_osx_32bit=no,
+       ac_osx_32bit=yes)
+
+    if test "${ac_osx_32bit}" = "yes"; then
+    	case `/usr/bin/arch` in
+    	i386)
+    		MACOSX_DEFAULT_ARCH="i386"
+    		;;
+    	ppc)
+    		MACOSX_DEFAULT_ARCH="ppc"
+    		;;
+    	*)
+    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
+    		;;
+    	esac
+    else
+    	case `/usr/bin/arch` in
+    	i386)
+    		MACOSX_DEFAULT_ARCH="x86_64"
+    		;;
+    	ppc)
+    		MACOSX_DEFAULT_ARCH="ppc64"
+    		;;
+    	*)
+    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
+    		;;
+    	esac
+
+	#ARCH_RUN_32BIT="true"
+    fi
+
+    LIBTOOL_CRUFT=$LIBTOOL_CRUFT" -lSystem -lSystemStubs -arch_only ${MACOSX_DEFAULT_ARCH}"
+    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
+esac
+
+AC_MSG_CHECKING(for --enable-framework)
+if test "$enable_framework"
+then
+	BASECFLAGS="$BASECFLAGS -fno-common -dynamic"
+	# -F. is needed to allow linking to the framework while
+	# in the build location.
+	AC_DEFINE(WITH_NEXT_FRAMEWORK, 1,
+         [Define if you want to produce an OpenStep/Rhapsody framework
+         (shared library plus accessory files).])
+	AC_MSG_RESULT(yes)
+	if test $enable_shared = "yes"
+	then
+		AC_MSG_ERROR([Specifying both --enable-shared and --enable-framework is not supported, use only --enable-framework instead])
+	fi
+else
+	AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(for dyld)
+case $ac_sys_system/$ac_sys_release in
+  Darwin/*)
+  	AC_DEFINE(WITH_DYLD, 1,
+        [Define if you want to use the new-style (Openstep, Rhapsody, MacOS)
+         dynamic linker (dyld) instead of the old-style (NextStep) dynamic
+         linker (rld). Dyld is necessary to support frameworks.])
+  	AC_MSG_RESULT(always on for Darwin)
+  	;;
+  *)
+	AC_MSG_RESULT(no)
+	;;
+esac
+
+# Set info about shared libraries.
+AC_SUBST(SO)
+AC_SUBST(LDSHARED)
+AC_SUBST(BLDSHARED)
+AC_SUBST(CCSHARED)
+AC_SUBST(LINKFORSHARED)
+# SO is the extension of shared libraries `(including the dot!)
+# -- usually .so, .sl on HP-UX, .dll on Cygwin
+AC_MSG_CHECKING(SO)
+if test -z "$SO"
+then
+	case $ac_sys_system in
+	hp*|HP*)
+		case `uname -m` in
+			ia64) SO=.so;;
+	  		*)    SO=.sl;;
+		esac
+		;;
+	CYGWIN*)   SO=.dll;;
+	*)	   SO=.so;;
+	esac
+else
+	# this might also be a termcap variable, see #610332
+        echo
+        echo '====================================================================='
+        echo '+                                                                   +'
+	echo '+ WARNING: You have set SO in your environment.                     +'
+        echo '+ Do you really mean to change the extension for shared libraries?  +'
+        echo '+ Continuing in 10 seconds to let you to ponder.                    +'
+        echo '+                                                                   +'
+        echo '====================================================================='
+	sleep 10
+fi
+AC_MSG_RESULT($SO)
+
+AC_DEFINE_UNQUOTED(SHLIB_EXT, "$SO", [Define this to be extension of shared libraries (including the dot!).])
+# LDSHARED is the ld *command* used to create shared library
+# -- "cc -G" on SunOS 5.x, "ld -shared" on IRIX 5
+# (Shared libraries in this instance are shared modules to be loaded into
+# Python, as opposed to building Python itself as a shared library.)
+AC_MSG_CHECKING(LDSHARED)
+if test -z "$LDSHARED"
+then
+	case $ac_sys_system/$ac_sys_release in
+	AIX*)
+		BLDSHARED="\$(srcdir)/Modules/ld_so_aix \$(CC) -bI:\$(srcdir)/Modules/python.exp"
+		LDSHARED="\$(BINLIBDEST)/config/ld_so_aix \$(CC) -bI:\$(BINLIBDEST)/config/python.exp"
+		;;
+	IRIX/5*) LDSHARED="ld -shared";;
+	IRIX*/6*) LDSHARED="ld ${SGI_ABI} -shared -all";;
+	SunOS/5*)
+		if test "$GCC" = "yes"
+		then LDSHARED='$(CC) -shared $(LDFLAGS)'
+		else LDSHARED='$(CC) -G $(LDFLAGS)';
+		fi ;;
+	hp*|HP*)
+		if test "$GCC" = "yes"
+		then LDSHARED='$(CC) -shared'
+		else LDSHARED='ld -b';
+		fi ;;
+	OSF*) LDSHARED="ld -shared -expect_unresolved \"*\"";;
+	Darwin/1.3*)
+		LDSHARED='$(CC) $(LDFLAGS) -bundle'
+		if test "$enable_framework" ; then
+			# Link against the framework. All externals should be defined.
+			BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+			LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+		else
+			# No framework. Ignore undefined symbols, assuming they come from Python
+			LDSHARED="$LDSHARED -undefined suppress"
+		fi ;;
+	Darwin/1.4*|Darwin/5.*|Darwin/6.*)
+		LDSHARED='$(CC) $(LDFLAGS) -bundle'
+		if test "$enable_framework" ; then
+			# Link against the framework. All externals should be defined.
+			BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+			LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+		else
+			# No framework, use the Python app as bundle-loader
+			BLDSHARED="$LDSHARED "'-bundle_loader $(BUILDPYTHON)'
+			LDSHARED="$LDSHARED "'-bundle_loader $(BINDIR)/python$(VERSION)$(EXE)'
+		fi ;;
+	Darwin/*)
+		# Use -undefined dynamic_lookup whenever possible (10.3 and later).
+		# This allows an extension to be used in any Python
+
+		if test ${MACOSX_DEPLOYMENT_TARGET} '>' 10.2
+		then
+			if test "${enable_universalsdk}"; then
+				LDFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${LDFLAGS}"
+			fi
+			LDSHARED='$(CC) $(LDFLAGS) -bundle -undefined dynamic_lookup'
+			BLDSHARED="$LDSHARED"
+		else
+			LDSHARED='$(CC) $(LDFLAGS) -bundle'
+			if test "$enable_framework" ; then
+				# Link against the framework. All externals should be defined.
+				BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+				LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+			else
+				# No framework, use the Python app as bundle-loader
+				BLDSHARED="$LDSHARED "'-bundle_loader $(BUILDPYTHON)'
+				LDSHARED="$LDSHARED "'-bundle_loader $(BINDIR)/python$(VERSION)$(EXE)'
+			fi
+		fi
+		;;
+	Linux*|GNU*|QNX*) LDSHARED='$(CC) -shared';;
+	BSD/OS*/4*) LDSHARED="gcc -shared";;
+	FreeBSD*)
+		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
+		then
+			LDSHARED='$(CC) -shared ${LDFLAGS}'
+		else
+			LDSHARED="ld -Bshareable ${LDFLAGS}"
+		fi;;
+	OpenBSD*)
+		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
+		then
+				LDSHARED='$(CC) -shared $(CCSHARED) ${LDFLAGS}'
+		else
+				case `uname -r` in
+				[[01]].* | 2.[[0-7]] | 2.[[0-7]].*)
+				   LDSHARED="ld -Bshareable ${LDFLAGS}"
+				   ;;
+				*)
+				   LDSHARED='$(CC) -shared $(CCSHARED) ${LDFLAGS}'
+				   ;;
+				esac
+		fi;;
+	NetBSD*|DragonFly*) LDSHARED='$(CC) -shared ${LDFLAGS}';;
+	OpenUNIX*|UnixWare*)
+		if test "$GCC" = "yes"
+		then LDSHARED='$(CC) -shared'
+		else LDSHARED='$(CC) -G'
+		fi;;
+	SCO_SV*) LDSHARED='$(CC) -Wl,-G,-Bexport';;
+	CYGWIN*) LDSHARED="gcc -shared -Wl,--enable-auto-image-base";;
+	atheos*) LDSHARED="gcc -shared";;
+	*)	LDSHARED="ld";;
+	esac
+fi
+AC_MSG_RESULT($LDSHARED)
+BLDSHARED=${BLDSHARED-$LDSHARED}
+# CCSHARED are the C *flags* used to create objects to go into a shared
+# library (module) -- this is only needed for a few systems
+AC_MSG_CHECKING(CCSHARED)
+if test -z "$CCSHARED"
+then
+	case $ac_sys_system/$ac_sys_release in
+	SunOS*) if test "$GCC" = yes;
+		then CCSHARED="-fPIC";
+		elif test `uname -p` = sparc;
+		then CCSHARED="-xcode=pic32";
+		else CCSHARED="-Kpic";
+		fi;;
+	hp*|HP*) if test "$GCC" = yes;
+		 then CCSHARED="-fPIC";
+		 else CCSHARED="+z";
+		 fi;;
+	Linux*|GNU*) CCSHARED="-fPIC";;
+	BSD/OS*/4*) CCSHARED="-fpic";;
+	FreeBSD*|NetBSD*|OpenBSD*|DragonFly*) CCSHARED="-fPIC";;
+	OpenUNIX*|UnixWare*)
+		if test "$GCC" = "yes"
+		then CCSHARED="-fPIC"
+		else CCSHARED="-KPIC"
+		fi;;
+	SCO_SV*)
+		if test "$GCC" = "yes"
+		then CCSHARED="-fPIC"
+		else CCSHARED="-Kpic -belf"
+		fi;;
+	IRIX*/6*)  case $CC in
+		   *gcc*) CCSHARED="-shared";;
+		   *) CCSHARED="";;
+		   esac;;
+	atheos*) CCSHARED="-fPIC";;
+	esac
+fi
+AC_MSG_RESULT($CCSHARED)
+# LINKFORSHARED are the flags passed to the $(CC) command that links
+# the python executable -- this is only needed for a few systems
+AC_MSG_CHECKING(LINKFORSHARED)
+if test -z "$LINKFORSHARED"
+then
+	case $ac_sys_system/$ac_sys_release in
+	AIX*)	LINKFORSHARED='-Wl,-bE:Modules/python.exp -lld';;
+	hp*|HP*)
+	    LINKFORSHARED="-Wl,-E -Wl,+s";;
+#	    LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;
+	BSD/OS/4*) LINKFORSHARED="-Xlinker -export-dynamic";;
+	Linux*|GNU*) LINKFORSHARED="-Xlinker -export-dynamic";;
+	# -u libsys_s pulls in all symbols in libsys
+	Darwin/*)
+		LINKFORSHARED="$extra_undefs -framework CoreFoundation"
+		if test "$enable_framework"
+		then
+			LINKFORSHARED="$LINKFORSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
+		fi
+		LINKFORSHARED="$LINKFORSHARED";;
+	OpenUNIX*|UnixWare*) LINKFORSHARED="-Wl,-Bexport";;
+	SCO_SV*) LINKFORSHARED="-Wl,-Bexport";;
+	ReliantUNIX*) LINKFORSHARED="-W1 -Blargedynsym";;
+	FreeBSD*|NetBSD*|OpenBSD*|DragonFly*)
+		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
+		then
+			LINKFORSHARED="-Wl,--export-dynamic"
+		fi;;
+	SunOS/5*) case $CC in
+		  *gcc*)
+		    if $CC -Xlinker --help 2>&1 | grep export-dynamic >/dev/null
+		    then
+			LINKFORSHARED="-Xlinker --export-dynamic"
+		    fi;;
+		  esac;;
+	CYGWIN*)
+		if test $enable_shared = "no"
+		then
+			LINKFORSHARED='-Wl,--out-implib=$(LDLIBRARY)'
+		fi;;
+	QNX*)
+		# -Wl,-E causes the symbols to be added to the dynamic
+		# symbol table so that they can be found when a module
+		# is loaded.  -N 2048K causes the stack size to be set
+		# to 2048 kilobytes so that the stack doesn't overflow
+		# when running test_compile.py.
+		LINKFORSHARED='-Wl,-E -N 2048K';;
+	esac
+fi
+AC_MSG_RESULT($LINKFORSHARED)
+
+
+AC_SUBST(CFLAGSFORSHARED)
+AC_MSG_CHECKING(CFLAGSFORSHARED)
+if test ! "$LIBRARY" = "$LDLIBRARY"
+then
+	case $ac_sys_system in
+	CYGWIN*)
+		# Cygwin needs CCSHARED when building extension DLLs
+		# but not when building the interpreter DLL.
+		CFLAGSFORSHARED='';;
+	*)
+		CFLAGSFORSHARED='$(CCSHARED)'
+	esac
+fi
+AC_MSG_RESULT($CFLAGSFORSHARED)
+
+# SHLIBS are libraries (except -lc and -lm) to link to the python shared
+# library (with --enable-shared).
+# For platforms on which shared libraries are not allowed to have unresolved
+# symbols, this must be set to $(LIBS) (expanded by make). We do this even
+# if it is not required, since it creates a dependency of the shared library
+# to LIBS. This, in turn, means that applications linking the shared libpython
+# don't need to link LIBS explicitly. The default should be only changed
+# on systems where this approach causes problems.
+AC_SUBST(SHLIBS)
+AC_MSG_CHECKING(SHLIBS)
+case "$ac_sys_system" in
+	*)
+		SHLIBS='$(LIBS)';;
+esac
+AC_MSG_RESULT($SHLIBS)
+
+
+# checks for libraries
+AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
+AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
+
+# only check for sem_init if thread support is requested
+if test "$with_threads" = "yes" -o -z "$with_threads"; then
+    AC_SEARCH_LIBS(sem_init, pthread rt posix4) # 'Real Time' functions on Solaris
+						# posix4 on Solaris 2.6
+						# pthread (first!) on Linux
+fi
+
+# check if we need libintl for locale functions
+AC_CHECK_LIB(intl, textdomain,
+	[AC_DEFINE(WITH_LIBINTL, 1,
+	[Define to 1 if libintl is needed for locale functions.])
+        LIBS="-lintl $LIBS"])
+
+# checks for system dependent C++ extensions support
+case "$ac_sys_system" in
+	AIX*)	AC_MSG_CHECKING(for genuine AIX C++ extensions support)
+		AC_TRY_LINK([#include <load.h>],
+			    [loadAndInit("", 0, "")],
+			    [AC_DEFINE(AIX_GENUINE_CPLUSPLUS, 1,
+                      [Define for AIX if your compiler is a genuine IBM xlC/xlC_r
+                       and you want support for AIX C++ shared extension modules.])
+			     AC_MSG_RESULT(yes)],
+			    [AC_MSG_RESULT(no)]);;
+	*) ;;
+esac
+
+# Most SVR4 platforms (e.g. Solaris) need -lsocket and -lnsl.
+AC_CHECK_LIB(nsl, t_open, [LIBS="-lnsl $LIBS"]) # SVR4
+AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets
+
+AC_MSG_CHECKING(for --with-libs)
+AC_ARG_WITH(libs,
+            AC_HELP_STRING(--with-libs='lib1 ...', link against additional libs),
+[
+AC_MSG_RESULT($withval)
+LIBS="$withval $LIBS"
+],
+[AC_MSG_RESULT(no)])
+
+# Check for use of the system libffi library
+AC_MSG_CHECKING(for --with-system-ffi)
+AC_ARG_WITH(system_ffi,
+            AC_HELP_STRING(--with-system-ffi, build _ctypes module using an installed ffi library),
+            [],
+            [with_system_ffi="no"])
+
+AC_MSG_RESULT($with_system_ffi)
+
+# Check for --with-dbmliborder
+AC_MSG_CHECKING(for --with-dbmliborder)
+AC_ARG_WITH(dbmliborder,
+            AC_HELP_STRING([--with-dbmliborder=db1:db2:...], [order to check db backends for dbm. Valid value is a colon separated string with the backend names `ndbm', `gdbm' and `bdb'.]),
+[
+if test x$with_dbmliborder = xyes
+then
+AC_MSG_ERROR([proper usage is --with-dbmliborder=db1:db2:...])
+else
+  for db in `echo $with_dbmliborder | sed 's/:/ /g'`; do
+    if test x$db != xndbm && test x$db != xgdbm && test x$db != xbdb
+    then
+      AC_MSG_ERROR([proper usage is --with-dbmliborder=db1:db2:...])
+    fi
+  done
+fi])
+AC_MSG_RESULT($with_dbmliborder)
+
+# Determine if signalmodule should be used.
+AC_SUBST(USE_SIGNAL_MODULE)
+AC_SUBST(SIGNAL_OBJS)
+AC_MSG_CHECKING(for --with-signal-module)
+AC_ARG_WITH(signal-module,
+            AC_HELP_STRING(--with-signal-module, disable/enable signal module))
+
+if test -z "$with_signal_module"
+then with_signal_module="yes"
+fi
+AC_MSG_RESULT($with_signal_module)
+
+if test "${with_signal_module}" = "yes"; then
+	USE_SIGNAL_MODULE=""
+	SIGNAL_OBJS=""
+else
+	USE_SIGNAL_MODULE="#"
+	SIGNAL_OBJS="Parser/intrcheck.o Python/sigcheck.o"
+fi
+
+# This is used to generate Setup.config
+AC_SUBST(USE_THREAD_MODULE)
+USE_THREAD_MODULE=""
+
+AC_MSG_CHECKING(for --with-dec-threads)
+AC_SUBST(LDLAST)
+AC_ARG_WITH(dec-threads,
+            AC_HELP_STRING(--with-dec-threads, use DEC Alpha/OSF1 thread-safe libraries),
+[
+AC_MSG_RESULT($withval)
+LDLAST=-threads
+if test "${with_thread+set}" != set; then
+   with_thread="$withval";
+fi],
+[AC_MSG_RESULT(no)])
+
+# Templates for things AC_DEFINEd more than once.
+# For a single AC_DEFINE, no template is needed.
+AH_TEMPLATE(C_THREADS,[Define if you have the Mach cthreads package])
+AH_TEMPLATE(_REENTRANT,
+  [Define to force use of thread-safe errno, h_errno, and other functions])
+AH_TEMPLATE(WITH_THREAD,
+  [Define if you want to compile in rudimentary thread support])
+
+AC_MSG_CHECKING(for --with-threads)
+dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
+AC_ARG_WITH(threads,
+            AC_HELP_STRING(--with(out)-threads@<:@=DIRECTORY@:>@, disable/enable thread support))
+
+# --with-thread is deprecated, but check for it anyway
+dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
+AC_ARG_WITH(thread,
+            AC_HELP_STRING(--with(out)-thread@<:@=DIRECTORY@:>@, deprecated; use --with(out)-threads),
+            [with_threads=$with_thread])
+
+if test -z "$with_threads"
+then with_threads="yes"
+fi
+AC_MSG_RESULT($with_threads)
+
+AC_SUBST(THREADOBJ)
+if test "$with_threads" = "no"
+then
+    USE_THREAD_MODULE="#"
+elif test "$ac_cv_pthread_is_default" = yes
+then
+    AC_DEFINE(WITH_THREAD)
+    # Defining _REENTRANT on system with POSIX threads should not hurt.
+    AC_DEFINE(_REENTRANT)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
+elif test "$ac_cv_kpthread" = "yes"
+then
+    CC="$CC -Kpthread"
+    if test "$ac_cv_cxx_thread" = "yes"; then
+        CXX="$CXX -Kpthread"
+    fi
+    AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
+elif test "$ac_cv_kthread" = "yes"
+then
+    CC="$CC -Kthread"
+    if test "$ac_cv_cxx_thread" = "yes"; then
+        CXX="$CXX -Kthread"
+    fi
+    AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
+elif test "$ac_cv_pthread" = "yes"
+then
+    CC="$CC -pthread"
+    if test "$ac_cv_cxx_thread" = "yes"; then
+        CXX="$CXX -pthread"
+    fi
+    AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"
+else
+    if test ! -z "$with_threads" -a -d "$with_threads"
+    then LDFLAGS="$LDFLAGS -L$with_threads"
+    fi
+    if test ! -z "$withval" -a -d "$withval"
+    then LDFLAGS="$LDFLAGS -L$withval"
+    fi
+
+    # According to the POSIX spec, a pthreads implementation must
+    # define _POSIX_THREADS in unistd.h. Some apparently don't
+    # (e.g. gnu pth with pthread emulation)
+    AC_MSG_CHECKING(for _POSIX_THREADS in unistd.h)
+    AC_EGREP_CPP(yes,
+    [
+#include <unistd.h>
+#ifdef _POSIX_THREADS
+yes
+#endif
+    ], unistd_defines_pthreads=yes, unistd_defines_pthreads=no)
+    AC_MSG_RESULT($unistd_defines_pthreads)
+
+    AC_DEFINE(_REENTRANT)
+    AC_CHECK_HEADER(cthreads.h, [AC_DEFINE(WITH_THREAD)
+    AC_DEFINE(C_THREADS)
+    AC_DEFINE(HURD_C_THREADS, 1,
+    [Define if you are using Mach cthreads directly under /include])
+    LIBS="$LIBS -lthreads"
+    THREADOBJ="Python/thread.o"],[
+    AC_CHECK_HEADER(mach/cthreads.h, [AC_DEFINE(WITH_THREAD)
+    AC_DEFINE(C_THREADS)
+    AC_DEFINE(MACH_C_THREADS, 1,
+    [Define if you are using Mach cthreads under mach /])
+    THREADOBJ="Python/thread.o"],[
+    AC_MSG_CHECKING(for --with-pth)
+    AC_ARG_WITH([pth],
+                AC_HELP_STRING(--with-pth, use GNU pth threading libraries),
+                [AC_MSG_RESULT($withval)
+                  AC_DEFINE([WITH_THREAD])
+                  AC_DEFINE([HAVE_PTH], 1,
+                            [Define if you have GNU PTH threads.])
+                  LIBS="-lpth $LIBS"
+                  THREADOBJ="Python/thread.o"],
+	        [AC_MSG_RESULT(no)
+
+    # Just looking for pthread_create in libpthread is not enough:
+    # on HP/UX, pthread.h renames pthread_create to a different symbol name.
+    # So we really have to include pthread.h, and then link.
+    _libs=$LIBS
+    LIBS="$LIBS -lpthread"
+    AC_MSG_CHECKING([for pthread_create in -lpthread])
+    AC_TRY_LINK([#include <pthread.h>
+
+void * start_routine (void *arg) { exit (0); }], [
+pthread_create (NULL, NULL, start_routine, NULL)], [
+    AC_MSG_RESULT(yes)
+    AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"],[
+    LIBS=$_libs
+    AC_CHECK_FUNC(pthread_detach, [AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    THREADOBJ="Python/thread.o"],[
+    AC_CHECK_HEADER(atheos/threads.h, [AC_DEFINE(WITH_THREAD)
+    AC_DEFINE(ATHEOS_THREADS, 1,
+    [Define this if you have AtheOS threads.])
+    THREADOBJ="Python/thread.o"],[
+    AC_CHECK_LIB(pthreads, pthread_create, [AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    LIBS="$LIBS -lpthreads"
+    THREADOBJ="Python/thread.o"], [
+    AC_CHECK_LIB(c_r, pthread_create, [AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    LIBS="$LIBS -lc_r"
+    THREADOBJ="Python/thread.o"], [
+    AC_CHECK_LIB(pthread, __pthread_create_system, [AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    LIBS="$LIBS -lpthread"
+    THREADOBJ="Python/thread.o"], [
+    AC_CHECK_LIB(cma, pthread_create, [AC_DEFINE(WITH_THREAD)
+    posix_threads=yes
+    LIBS="$LIBS -lcma"
+    THREADOBJ="Python/thread.o"],[
+    USE_THREAD_MODULE="#"])
+    ])])])])])])])])])
+
+    AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
+    LIBS="$LIBS -lmpc"
+    THREADOBJ="Python/thread.o"
+    USE_THREAD_MODULE=""])
+
+    if test "$posix_threads" != "yes"; then
+      AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)
+      LIBS="$LIBS -lthread"
+      THREADOBJ="Python/thread.o"
+      USE_THREAD_MODULE=""])
+    fi
+
+    if test "$USE_THREAD_MODULE" != "#"
+    then
+        # If the above checks didn't disable threads, (at least) OSF1
+        # needs this '-threads' argument during linking.
+        case $ac_sys_system in
+        OSF1) LDLAST=-threads;;
+        esac
+    fi
+fi
+
+if test "$posix_threads" = "yes"; then
+      if test "$unistd_defines_pthreads" = "no"; then
+         AC_DEFINE(_POSIX_THREADS, 1,
+         [Define if you have POSIX threads,
+          and your system does not define that.])
+      fi
+
+      # Bug 662787: Using semaphores causes unexplicable hangs on Solaris 8.
+      case  $ac_sys_system/$ac_sys_release in
+  SunOS/5.6) AC_DEFINE(HAVE_PTHREAD_DESTRUCTOR, 1,
+                       Defined for Solaris 2.6 bug in pthread header.)
+		       ;;
+      SunOS/5.8) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
+		       Define if the Posix semaphores do not work on your system)
+		       ;;
+      AIX/5) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
+		       Define if the Posix semaphores do not work on your system)
+		       ;;
+      AIX/6) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
+                      Define if the Posix semaphores do not work on your system)
+                      ;;
+      esac
+
+      AC_MSG_CHECKING(if PTHREAD_SCOPE_SYSTEM is supported)
+      AC_CACHE_VAL(ac_cv_pthread_system_supported,
+      [AC_TRY_RUN([#include <pthread.h>
+      void *foo(void *parm) {
+        return NULL;
+      }
+      main() {
+        pthread_attr_t attr;
+        pthread_t id;
+        if (pthread_attr_init(&attr)) exit(-1);
+        if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
+        if (pthread_create(&id, &attr, foo, NULL)) exit(-1);
+        exit(0);
+      }],
+      ac_cv_pthread_system_supported=yes,
+      ac_cv_pthread_system_supported=no,
+      ac_cv_pthread_system_supported=no)
+      ])
+      AC_MSG_RESULT($ac_cv_pthread_system_supported)
+      if test "$ac_cv_pthread_system_supported" = "yes"; then
+        AC_DEFINE(PTHREAD_SYSTEM_SCHED_SUPPORTED, 1, [Defined if PTHREAD_SCOPE_SYSTEM supported.])
+      fi
+      AC_CHECK_FUNCS(pthread_sigmask,
+        [case $ac_sys_system in
+        CYGWIN*)
+          AC_DEFINE(HAVE_BROKEN_PTHREAD_SIGMASK, 1,
+            [Define if pthread_sigmask() does not work on your system.])
+            ;;
+        esac])
+fi
+
+
+# Check for enable-ipv6
+AH_TEMPLATE(ENABLE_IPV6, [Define if --enable-ipv6 is specified])
+AC_MSG_CHECKING([if --enable-ipv6 is specified])
+AC_ARG_ENABLE(ipv6,
+[  --enable-ipv6           Enable ipv6 (with ipv4) support
+  --disable-ipv6          Disable ipv6 support],
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       ipv6=no
+       ;;
+  *)   AC_MSG_RESULT(yes)
+       AC_DEFINE(ENABLE_IPV6)
+       ipv6=yes
+       ;;
+  esac ],
+
+[
+dnl the check does not work on cross compilation case...
+  AC_TRY_RUN([ /* AF_INET6 available check */
+#include <sys/types.h>
+#include <sys/socket.h>
+main()
+{
+ if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
+   exit(1);
+ else
+   exit(0);
+}
+],
+  AC_MSG_RESULT(yes)
+  ipv6=yes,
+  AC_MSG_RESULT(no)
+  ipv6=no,
+  AC_MSG_RESULT(no)
+  ipv6=no
+)
+
+if test "$ipv6" = "yes"; then
+	AC_MSG_CHECKING(if RFC2553 API is available)
+	AC_TRY_COMPILE([#include <sys/types.h>
+#include <netinet/in.h>],
+	[struct sockaddr_in6 x;
+x.sin6_scope_id;],
+		AC_MSG_RESULT(yes)
+		ipv6=yes,
+		AC_MSG_RESULT(no, IPv6 disabled)
+		ipv6=no)
+fi
+
+if test "$ipv6" = "yes"; then
+	AC_DEFINE(ENABLE_IPV6)
+fi
+])
+
+ipv6type=unknown
+ipv6lib=none
+ipv6trylibc=no
+
+if test "$ipv6" = "yes"; then
+	AC_MSG_CHECKING([ipv6 stack type])
+	for i in inria kame linux-glibc linux-inet6 solaris toshiba v6d zeta;
+	do
+		case $i in
+		inria)
+			dnl http://www.kame.net/
+			AC_EGREP_CPP(yes, [
+#include <netinet/in.h>
+#ifdef IPV6_INRIA_VERSION
+yes
+#endif],
+				[ipv6type=$i])
+			;;
+		kame)
+			dnl http://www.kame.net/
+			AC_EGREP_CPP(yes, [
+#include <netinet/in.h>
+#ifdef __KAME__
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=inet6
+				ipv6libdir=/usr/local/v6/lib
+				ipv6trylibc=yes])
+			;;
+		linux-glibc)
+			dnl http://www.v6.linux.or.jp/
+			AC_EGREP_CPP(yes, [
+#include <features.h>
+#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2))
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6trylibc=yes])
+			;;
+		linux-inet6)
+			dnl http://www.v6.linux.or.jp/
+			if test -d /usr/inet6; then
+				ipv6type=$i
+				ipv6lib=inet6
+				ipv6libdir=/usr/inet6/lib
+				BASECFLAGS="-I/usr/inet6/include $BASECFLAGS"
+			fi
+			;;
+		solaris)
+			if test -f /etc/netconfig; then
+                          if $GREP -q tcp6 /etc/netconfig; then
+				ipv6type=$i
+				ipv6trylibc=yes
+                          fi
+                        fi
+			;;
+		toshiba)
+			AC_EGREP_CPP(yes, [
+#include <sys/param.h>
+#ifdef _TOSHIBA_INET6
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=inet6;
+				ipv6libdir=/usr/local/v6/lib])
+			;;
+		v6d)
+			AC_EGREP_CPP(yes, [
+#include </usr/local/v6/include/sys/v6config.h>
+#ifdef __V6D__
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=v6;
+				ipv6libdir=/usr/local/v6/lib;
+				BASECFLAGS="-I/usr/local/v6/include $BASECFLAGS"])
+			;;
+		zeta)
+			AC_EGREP_CPP(yes, [
+#include <sys/param.h>
+#ifdef _ZETA_MINAMI_INET6
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=inet6;
+				ipv6libdir=/usr/local/v6/lib])
+			;;
+		esac
+		if test "$ipv6type" != "unknown"; then
+			break
+		fi
+	done
+	AC_MSG_RESULT($ipv6type)
+fi
+
+if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then
+	if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then
+		LIBS="-L$ipv6libdir -l$ipv6lib $LIBS"
+		echo "using lib$ipv6lib"
+	else
+		if test $ipv6trylibc = "yes"; then
+			echo "using libc"
+		else
+			echo 'Fatal: no $ipv6lib library found.  cannot continue.'
+			echo "You need to fetch lib$ipv6lib.a from appropriate"
+			echo 'ipv6 kit and compile beforehand.'
+			exit 1
+		fi
+	fi
+fi
+
+AC_MSG_CHECKING(for OSX 10.5 SDK or later)
+AC_TRY_COMPILE([#include <Carbon/Carbon.h>], FSIORefNum fRef = 0,
+  AC_DEFINE(HAVE_OSX105_SDK, 1, Define if compiling using MacOS X 10.5 SDK or later.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+# Check for --with-doc-strings
+AC_MSG_CHECKING(for --with-doc-strings)
+AC_ARG_WITH(doc-strings,
+            AC_HELP_STRING(--with(out)-doc-strings, disable/enable documentation strings))
+
+if test -z "$with_doc_strings"
+then with_doc_strings="yes"
+fi
+if test "$with_doc_strings" != "no"
+then
+    AC_DEFINE(WITH_DOC_STRINGS, 1,
+      [Define if you want documentation strings in extension modules])
+fi
+AC_MSG_RESULT($with_doc_strings)
+
+# Check if eval loop should use timestamp counter profiling
+AC_MSG_CHECKING(for --with-tsc)
+AC_ARG_WITH(tsc,
+[  --with(out)-tsc         enable/disable timestamp counter profile], [
+if test "$withval" != no
+then
+  AC_DEFINE(WITH_TSC, 1,
+    [Define to profile with the Pentium timestamp counter])
+    AC_MSG_RESULT(yes)
+else AC_MSG_RESULT(no)
+fi],
+[AC_MSG_RESULT(no)])
+
+# Check for Python-specific malloc support
+AC_MSG_CHECKING(for --with-pymalloc)
+AC_ARG_WITH(pymalloc,
+            AC_HELP_STRING(--with(out)-pymalloc, disable/enable specialized mallocs))
+
+if test -z "$with_pymalloc"
+then with_pymalloc="yes"
+fi
+if test "$with_pymalloc" != "no"
+then
+    AC_DEFINE(WITH_PYMALLOC, 1,
+     [Define if you want to compile in Python-specific mallocs])
+fi
+AC_MSG_RESULT($with_pymalloc)
+
+# Check for --with-wctype-functions
+AC_MSG_CHECKING(for --with-wctype-functions)
+AC_ARG_WITH(wctype-functions,
+            AC_HELP_STRING(--with-wctype-functions, use wctype.h functions),
+[
+if test "$withval" != no
+then
+  AC_DEFINE(WANT_WCTYPE_FUNCTIONS, 1,
+  [Define if you want wctype.h functions to be used instead of the
+   one supplied by Python itself. (see Include/unicodectype.h).])
+  AC_MSG_RESULT(yes)
+else AC_MSG_RESULT(no)
+fi],
+[AC_MSG_RESULT(no)])
+
+# -I${DLINCLDIR} is added to the compile rule for importdl.o
+AC_SUBST(DLINCLDIR)
+DLINCLDIR=.
+
+# the dlopen() function means we might want to use dynload_shlib.o. some
+# platforms, such as AIX, have dlopen(), but don't want to use it.
+AC_CHECK_FUNCS(dlopen)
+
+# DYNLOADFILE specifies which dynload_*.o file we will use for dynamic
+# loading of modules.
+AC_SUBST(DYNLOADFILE)
+AC_MSG_CHECKING(DYNLOADFILE)
+if test -z "$DYNLOADFILE"
+then
+	case $ac_sys_system/$ac_sys_release in
+	AIX*) # Use dynload_shlib.c and dlopen() if we have it; otherwise dynload_aix.c
+	if test "$ac_cv_func_dlopen" = yes
+	then DYNLOADFILE="dynload_shlib.o"
+	else DYNLOADFILE="dynload_aix.o"
+	fi
+	;;
+	hp*|HP*) DYNLOADFILE="dynload_hpux.o";;
+	# Use dynload_next.c only on 10.2 and below, which don't have native dlopen()
+	Darwin/@<:@0156@:>@\..*) DYNLOADFILE="dynload_next.o";;
+	atheos*) DYNLOADFILE="dynload_atheos.o";;
+	*)
+	# use dynload_shlib.c and dlopen() if we have it; otherwise stub
+	# out any dynamic loading
+	if test "$ac_cv_func_dlopen" = yes
+	then DYNLOADFILE="dynload_shlib.o"
+	else DYNLOADFILE="dynload_stub.o"
+	fi
+	;;
+	esac
+fi
+AC_MSG_RESULT($DYNLOADFILE)
+if test "$DYNLOADFILE" != "dynload_stub.o"
+then
+	AC_DEFINE(HAVE_DYNAMIC_LOADING, 1,
+        [Defined when any dynamic module loading is enabled.])
+fi
+
+# MACHDEP_OBJS can be set to platform-specific object files needed by Python
+
+AC_SUBST(MACHDEP_OBJS)
+AC_MSG_CHECKING(MACHDEP_OBJS)
+if test -z "$MACHDEP_OBJS"
+then
+	MACHDEP_OBJS=$extra_machdep_objs
+else
+	MACHDEP_OBJS="$MACHDEP_OBJS $extra_machdep_objs"
+fi
+AC_MSG_RESULT(MACHDEP_OBJS)
+
+# checks for library functions
+AC_CHECK_FUNCS(alarm setitimer getitimer bind_textdomain_codeset chown \
+ clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
+ gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
+ getpriority getpwent getspnam getspent getsid getwd \
+ kill killpg lchmod lchown lstat mbrtowc mkfifo mknod mktime \
+ mremap nice pathconf pause plock poll pthread_init \
+ putenv readlink realpath \
+ select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \
+ setgid \
+ setlocale setregid setreuid setsid setpgid setpgrp setuid setvbuf snprintf \
+ sigaction siginterrupt sigrelse strftime strlcpy \
+ sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
+ truncate uname unsetenv utimes waitpid wait3 wait4 \
+ wcscoll wcsftime wcsxfrm _getpty)
+
+# For some functions, having a definition is not sufficient, since
+# we want to take their address.
+AC_MSG_CHECKING(for chroot)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=chroot,
+  AC_DEFINE(HAVE_CHROOT, 1, Define if you have the 'chroot' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for link)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=link,
+  AC_DEFINE(HAVE_LINK, 1, Define if you have the 'link' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for symlink)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=symlink,
+  AC_DEFINE(HAVE_SYMLINK, 1, Define if you have the 'symlink' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for fchdir)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fchdir,
+  AC_DEFINE(HAVE_FCHDIR, 1, Define if you have the 'fchdir' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for fsync)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fsync,
+  AC_DEFINE(HAVE_FSYNC, 1, Define if you have the 'fsync' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for fdatasync)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fdatasync,
+  AC_DEFINE(HAVE_FDATASYNC, 1, Define if you have the 'fdatasync' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for epoll)
+AC_TRY_COMPILE([#include <sys/epoll.h>], void *x=epoll_create,
+  AC_DEFINE(HAVE_EPOLL, 1, Define if you have the 'epoll' functions.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for kqueue)
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/event.h>
+    ], int x=kqueue(),
+  AC_DEFINE(HAVE_KQUEUE, 1, Define if you have the 'kqueue' functions.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+# On some systems (eg. FreeBSD 5), we would find a definition of the
+# functions ctermid_r, setgroups in the library, but no prototype
+# (e.g. because we use _XOPEN_SOURCE). See whether we can take their
+# address to avoid compiler warnings and potential miscompilations
+# because of the missing prototypes.
+
+AC_MSG_CHECKING(for ctermid_r)
+AC_TRY_COMPILE([
+#include "confdefs.h"
+#include <stdio.h>
+], void* p = ctermid_r,
+  AC_DEFINE(HAVE_CTERMID_R, 1, Define if you have the 'ctermid_r' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_CACHE_CHECK([for flock declaration], [ac_cv_flock_decl],
+  [AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM(
+      [#include <sys/file.h>],
+      [void* p = flock]
+    )],
+    [ac_cv_flock_decl=yes],
+    [ac_cv_flock_decl=no]
+  )
+])
+if test "x${ac_cv_flock_decl}" = xyes; then
+  AC_CHECK_FUNCS(flock,,
+    AC_CHECK_LIB(bsd,flock,
+      [AC_DEFINE(HAVE_FLOCK)
+       AC_DEFINE(FLOCK_NEEDS_LIBBSD, 1, Define if flock needs to be linked with bsd library.)
+    ])
+  )
+fi
+
+AC_MSG_CHECKING(for getpagesize)
+AC_TRY_COMPILE([
+#include "confdefs.h"
+#include <unistd.h>
+], void* p = getpagesize,
+  AC_DEFINE(HAVE_GETPAGESIZE, 1, Define if you have the 'getpagesize' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+dnl check for true
+AC_CHECK_PROGS(TRUE, true, /bin/true)
+
+dnl On some systems (e.g. Solaris 9), hstrerror and inet_aton are in -lresolv
+dnl On others, they are in the C library, so we to take no action
+AC_CHECK_LIB(c, inet_aton, [$ac_cv_prog_TRUE],
+  AC_CHECK_LIB(resolv, inet_aton)
+)
+
+# On Tru64, chflags seems to be present, but calling it will
+# exit Python
+AC_CACHE_CHECK([for chflags], [ac_cv_have_chflags], [dnl
+AC_TRY_RUN([[
+#include <sys/stat.h>
+#include <unistd.h>
+int main(int argc, char*argv[])
+{
+  if(chflags(argv[0], 0) != 0)
+    return 1;
+  return 0;
+}
+]], ac_cv_have_chflags=yes,
+   ac_cv_have_chflags=no,
+   ac_cv_have_chflags=cross)
+])
+if test "$ac_cv_have_chflags" = cross ; then
+  AC_CHECK_FUNC([chflags], [ac_cv_have_chflags="yes"], [ac_cv_have_chflags="no"])
+fi
+if test "$ac_cv_have_chflags" = yes ; then
+  AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
+fi
+
+AC_CACHE_CHECK([for lchflags], [ac_cv_have_lchflags], [dnl
+AC_TRY_RUN([[
+#include <sys/stat.h>
+#include <unistd.h>
+int main(int argc, char*argv[])
+{
+  if(lchflags(argv[0], 0) != 0)
+    return 1;
+  return 0;
+}
+]], ac_cv_have_lchflags=yes,
+   ac_cv_have_lchflags=no,
+   ac_cv_have_lchflags=cross)
+])
+if test "$ac_cv_have_lchflags" = cross ; then
+  AC_CHECK_FUNC([lchflags], [ac_cv_have_lchflags="yes"], [ac_cv_have_lchflags="no"])
+fi
+if test "$ac_cv_have_lchflags" = yes ; then
+  AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
+fi
+
+dnl Check if system zlib has *Copy() functions
+dnl
+dnl On MacOSX the linker will search for dylibs on the entire linker path
+dnl before searching for static libraries. setup.py adds -Wl,-search_paths_first
+dnl to revert to a more traditional unix behaviour and make it possible to
+dnl override the system libz with a local static library of libz. Temporarily
+dnl add that flag to our CFLAGS as well to ensure that we check the version
+dnl of libz that will be used by setup.py.
+dnl The -L/usr/local/lib is needed as wel to get the same compilation
+dnl environment as setup.py (and leaving it out can cause configure to use the
+dnl wrong version of the library)
+case $ac_sys_system/$ac_sys_release in
+Darwin/*)
+	_CUR_CFLAGS="${CFLAGS}"
+	_CUR_LDFLAGS="${LDFLAGS}"
+	CFLAGS="${CFLAGS} -Wl,-search_paths_first"
+	LDFLAGS="${LDFLAGS} -Wl,-search_paths_first -L/usr/local/lib"
+	;;
+esac
+
+AC_CHECK_LIB(z, inflateCopy, AC_DEFINE(HAVE_ZLIB_COPY, 1, Define if the zlib library has inflateCopy))
+
+case $ac_sys_system/$ac_sys_release in
+Darwin/*)
+	CFLAGS="${_CUR_CFLAGS}"
+	LDFLAGS="${_CUR_LDFLAGS}"
+	;;
+esac
+
+AC_MSG_CHECKING(for hstrerror)
+AC_TRY_LINK([
+#include "confdefs.h"
+#include <netdb.h>
+], void* p = hstrerror; hstrerror(0),
+  AC_DEFINE(HAVE_HSTRERROR, 1, Define if you have the 'hstrerror' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for inet_aton)
+AC_TRY_LINK([
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+], void* p = inet_aton;inet_aton(0,0),
+  AC_DEFINE(HAVE_INET_ATON, 1, Define if you have the 'inet_aton' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for inet_pton)
+AC_TRY_COMPILE([
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+], void* p = inet_pton,
+  AC_DEFINE(HAVE_INET_PTON, 1, Define if you have the 'inet_pton' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+# On some systems, setgroups is in unistd.h, on others, in grp.h
+AC_MSG_CHECKING(for setgroups)
+AC_TRY_COMPILE([
+#include "confdefs.h"
+#include <unistd.h>
+#ifdef HAVE_GRP_H
+#include <grp.h>
+#endif
+],
+void* p = setgroups,
+  AC_DEFINE(HAVE_SETGROUPS, 1, Define if you have the 'setgroups' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+# check for openpty and forkpty
+
+AC_CHECK_FUNCS(openpty,,
+   AC_CHECK_LIB(util,openpty,
+     [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"],
+     AC_CHECK_LIB(bsd,openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lbsd"])
+   )
+)
+AC_CHECK_FUNCS(forkpty,,
+   AC_CHECK_LIB(util,forkpty,
+     [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lutil"],
+     AC_CHECK_LIB(bsd,forkpty, [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lbsd"])
+   )
+)
+
+# Stuff for expat.
+AC_CHECK_FUNCS(memmove)
+
+# check for long file support functions
+AC_CHECK_FUNCS(fseek64 fseeko fstatvfs ftell64 ftello statvfs)
+
+AC_REPLACE_FUNCS(dup2 getcwd strdup)
+AC_CHECK_FUNCS(getpgrp,
+  AC_TRY_COMPILE([#include <unistd.h>],
+   [getpgrp(0);],
+   AC_DEFINE(GETPGRP_HAVE_ARG, 1,
+   [Define if getpgrp() must be called as getpgrp(0).])
+ )
+)
+AC_CHECK_FUNCS(setpgrp,
+  AC_TRY_COMPILE([#include <unistd.h>],
+    [setpgrp(0,0);],
+    AC_DEFINE(SETPGRP_HAVE_ARG, 1,
+    [Define if setpgrp() must be called as setpgrp(0, 0).])
+  )
+)
+AC_CHECK_FUNCS(gettimeofday,
+  AC_TRY_COMPILE([#include <sys/time.h>],
+    [gettimeofday((struct timeval*)0,(struct timezone*)0);], ,
+    AC_DEFINE(GETTIMEOFDAY_NO_TZ, 1,
+    [Define if gettimeofday() does not have second (timezone) argument
+     This is the case on Motorola V4 (R40V4.2)])
+  )
+)
+
+AC_MSG_CHECKING(for major, minor, and makedev)
+AC_TRY_LINK([
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#else
+#include <sys/types.h>
+#endif
+],[
+  makedev(major(0),minor(0));
+],[
+  AC_DEFINE(HAVE_DEVICE_MACROS, 1,
+	    [Define to 1 if you have the device macros.])
+  AC_MSG_RESULT(yes)
+],[
+  AC_MSG_RESULT(no)
+])
+
+# On OSF/1 V5.1, getaddrinfo is available, but a define
+# for [no]getaddrinfo in netdb.h.
+AC_MSG_CHECKING(for getaddrinfo)
+AC_TRY_LINK([
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <stdio.h>
+],[
+getaddrinfo(NULL, NULL, NULL, NULL);
+], [
+AC_MSG_RESULT(yes)
+AC_MSG_CHECKING(getaddrinfo bug)
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <netdb.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+main()
+{
+  int passive, gaierr, inet4 = 0, inet6 = 0;
+  struct addrinfo hints, *ai, *aitop;
+  char straddr[INET6_ADDRSTRLEN], strport[16];
+
+  for (passive = 0; passive <= 1; passive++) {
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_flags = passive ? AI_PASSIVE : 0;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_protocol = IPPROTO_TCP;
+    if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
+      (void)gai_strerror(gaierr);
+      goto bad;
+    }
+    for (ai = aitop; ai; ai = ai->ai_next) {
+      if (ai->ai_addr == NULL ||
+          ai->ai_addrlen == 0 ||
+          getnameinfo(ai->ai_addr, ai->ai_addrlen,
+                      straddr, sizeof(straddr), strport, sizeof(strport),
+                      NI_NUMERICHOST|NI_NUMERICSERV) != 0) {
+        goto bad;
+      }
+      switch (ai->ai_family) {
+      case AF_INET:
+        if (strcmp(strport, "54321") != 0) {
+          goto bad;
+        }
+        if (passive) {
+          if (strcmp(straddr, "0.0.0.0") != 0) {
+            goto bad;
+          }
+        } else {
+          if (strcmp(straddr, "127.0.0.1") != 0) {
+            goto bad;
+          }
+        }
+        inet4++;
+        break;
+      case AF_INET6:
+        if (strcmp(strport, "54321") != 0) {
+          goto bad;
+        }
+        if (passive) {
+          if (strcmp(straddr, "::") != 0) {
+            goto bad;
+          }
+        } else {
+          if (strcmp(straddr, "::1") != 0) {
+            goto bad;
+          }
+        }
+        inet6++;
+        break;
+      case AF_UNSPEC:
+        goto bad;
+        break;
+      default:
+        /* another family support? */
+        break;
+      }
+    }
+  }
+
+  if (!(inet4 == 0 || inet4 == 2))
+    goto bad;
+  if (!(inet6 == 0 || inet6 == 2))
+    goto bad;
+
+  if (aitop)
+    freeaddrinfo(aitop);
+  exit(0);
+
+ bad:
+  if (aitop)
+    freeaddrinfo(aitop);
+  exit(1);
+}
+],
+AC_MSG_RESULT(good)
+buggygetaddrinfo=no,
+AC_MSG_RESULT(buggy)
+buggygetaddrinfo=yes,
+AC_MSG_RESULT(buggy)
+buggygetaddrinfo=yes)], [
+AC_MSG_RESULT(no)
+buggygetaddrinfo=yes
+])
+
+if test "$buggygetaddrinfo" = "yes"; then
+	if test "$ipv6" = "yes"; then
+		echo 'Fatal: You must get working getaddrinfo() function.'
+		echo '       or you can specify "--disable-ipv6"'.
+		exit 1
+	fi
+else
+	AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if you have the getaddrinfo function.])
+fi
+AC_CHECK_FUNCS(getnameinfo)
+
+# checks for structures
+AC_HEADER_TIME
+AC_STRUCT_TM
+AC_STRUCT_TIMEZONE
+AC_CHECK_MEMBERS([struct stat.st_rdev])
+AC_CHECK_MEMBERS([struct stat.st_blksize])
+AC_CHECK_MEMBERS([struct stat.st_flags])
+AC_CHECK_MEMBERS([struct stat.st_gen])
+AC_CHECK_MEMBERS([struct stat.st_birthtime])
+AC_STRUCT_ST_BLOCKS
+
+AC_MSG_CHECKING(for time.h that defines altzone)
+AC_CACHE_VAL(ac_cv_header_time_altzone,
+[AC_TRY_COMPILE([#include <time.h>], [return altzone;],
+  ac_cv_header_time_altzone=yes,
+  ac_cv_header_time_altzone=no)])
+AC_MSG_RESULT($ac_cv_header_time_altzone)
+if test $ac_cv_header_time_altzone = yes; then
+  AC_DEFINE(HAVE_ALTZONE, 1, [Define this if your time.h defines altzone.])
+fi
+
+was_it_defined=no
+AC_MSG_CHECKING(whether sys/select.h and sys/time.h may both be included)
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/select.h>
+#include <sys/time.h>
+], [;], [
+  AC_DEFINE(SYS_SELECT_WITH_SYS_TIME, 1,
+  [Define if  you can safely include both <sys/select.h> and <sys/time.h>
+   (which you can't on SCO ODT 3.0).])
+  was_it_defined=yes
+])
+AC_MSG_RESULT($was_it_defined)
+
+AC_MSG_CHECKING(for addrinfo)
+AC_CACHE_VAL(ac_cv_struct_addrinfo,
+AC_TRY_COMPILE([
+#		include <netdb.h>],
+	[struct addrinfo a],
+	ac_cv_struct_addrinfo=yes,
+	ac_cv_struct_addrinfo=no))
+AC_MSG_RESULT($ac_cv_struct_addrinfo)
+if test $ac_cv_struct_addrinfo = yes; then
+	AC_DEFINE(HAVE_ADDRINFO, 1, [struct addrinfo (netdb.h)])
+fi
+
+AC_MSG_CHECKING(for sockaddr_storage)
+AC_CACHE_VAL(ac_cv_struct_sockaddr_storage,
+AC_TRY_COMPILE([
+#		include <sys/types.h>
+#		include <sys/socket.h>],
+	[struct sockaddr_storage s],
+	ac_cv_struct_sockaddr_storage=yes,
+	ac_cv_struct_sockaddr_storage=no))
+AC_MSG_RESULT($ac_cv_struct_sockaddr_storage)
+if test $ac_cv_struct_sockaddr_storage = yes; then
+	AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, [struct sockaddr_storage (sys/socket.h)])
+fi
+
+# checks for compiler characteristics
+
+AC_C_CHAR_UNSIGNED
+AC_C_CONST
+
+works=no
+AC_MSG_CHECKING(for working volatile)
+AC_TRY_COMPILE([],[volatile int x; x = 0;], works=yes,
+  AC_DEFINE(volatile, [], [Define to empty if the keyword does not work.])
+)
+AC_MSG_RESULT($works)
+
+works=no
+AC_MSG_CHECKING(for working signed char)
+AC_TRY_COMPILE([], [signed char c;], works=yes,
+  AC_DEFINE(signed, [], [Define to empty if the keyword does not work.])
+)
+AC_MSG_RESULT($works)
+
+have_prototypes=no
+AC_MSG_CHECKING(for prototypes)
+AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],[
+  AC_DEFINE(HAVE_PROTOTYPES, 1,
+   [Define if your compiler supports function prototype])
+  have_prototypes=yes
+])
+AC_MSG_RESULT($have_prototypes)
+
+works=no
+AC_MSG_CHECKING(for variable length prototypes and stdarg.h)
+AC_TRY_COMPILE([
+#include <stdarg.h>
+int foo(int x, ...) {
+	va_list va;
+	va_start(va, x);
+	va_arg(va, int);
+	va_arg(va, char *);
+	va_arg(va, double);
+	return 0;
+}
+], [return foo(10, "", 3.14);], [
+  AC_DEFINE(HAVE_STDARG_PROTOTYPES, 1,
+   [Define if your compiler supports variable length function prototypes
+   (e.g. void fprintf(FILE *, char *, ...);) *and* <stdarg.h>])
+  works=yes
+])
+AC_MSG_RESULT($works)
+
+# check for socketpair
+AC_MSG_CHECKING(for socketpair)
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/socket.h>
+], void *x=socketpair,
+  AC_DEFINE(HAVE_SOCKETPAIR, 1, Define if you have the 'socketpair' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+# check if sockaddr has sa_len member
+AC_MSG_CHECKING(if sockaddr has sa_len member)
+AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/socket.h>],
+[struct sockaddr x;
+x.sa_len = 0;],
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_SOCKADDR_SA_LEN, 1, [Define if sockaddr has sa_len member]),
+	AC_MSG_RESULT(no))
+
+va_list_is_array=no
+AC_MSG_CHECKING(whether va_list is an array)
+AC_TRY_COMPILE([
+#ifdef HAVE_STDARG_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+], [va_list list1, list2; list1 = list2;], , [
+ AC_DEFINE(VA_LIST_IS_ARRAY, 1, [Define if a va_list is an array of some kind])
+ va_list_is_array=yes
+])
+AC_MSG_RESULT($va_list_is_array)
+
+# sigh -- gethostbyname_r is a mess; it can have 3, 5 or 6 arguments :-(
+AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
+  [Define this if you have some version of gethostbyname_r()])
+
+AC_CHECK_FUNC(gethostbyname_r, [
+  AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+  AC_MSG_CHECKING([gethostbyname_r with 6 args])
+  OLD_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
+  AC_TRY_COMPILE([
+#   include <netdb.h>
+  ], [
+    char *name;
+    struct hostent *he, *res;
+    char buffer[2048];
+    int buflen = 2048;
+    int h_errnop;
+
+    (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop)
+  ], [
+    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
+    [Define this if you have the 6-arg version of gethostbyname_r().])
+    AC_MSG_RESULT(yes)
+  ], [
+    AC_MSG_RESULT(no)
+    AC_MSG_CHECKING([gethostbyname_r with 5 args])
+    AC_TRY_COMPILE([
+#     include <netdb.h>
+    ], [
+      char *name;
+      struct hostent *he;
+      char buffer[2048];
+      int buflen = 2048;
+      int h_errnop;
+
+      (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop)
+    ], [
+      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
+      [Define this if you have the 5-arg version of gethostbyname_r().])
+      AC_MSG_RESULT(yes)
+    ], [
+      AC_MSG_RESULT(no)
+      AC_MSG_CHECKING([gethostbyname_r with 3 args])
+      AC_TRY_COMPILE([
+#       include <netdb.h>
+      ], [
+        char *name;
+        struct hostent *he;
+        struct hostent_data data;
+
+        (void) gethostbyname_r(name, he, &data);
+      ], [
+        AC_DEFINE(HAVE_GETHOSTBYNAME_R)
+        AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
+        [Define this if you have the 3-arg version of gethostbyname_r().])
+        AC_MSG_RESULT(yes)
+      ], [
+        AC_MSG_RESULT(no)
+      ])
+    ])
+  ])
+  CFLAGS=$OLD_CFLAGS
+], [
+  AC_CHECK_FUNCS(gethostbyname)
+])
+AC_SUBST(HAVE_GETHOSTBYNAME_R_6_ARG)
+AC_SUBST(HAVE_GETHOSTBYNAME_R_5_ARG)
+AC_SUBST(HAVE_GETHOSTBYNAME_R_3_ARG)
+AC_SUBST(HAVE_GETHOSTBYNAME_R)
+AC_SUBST(HAVE_GETHOSTBYNAME)
+
+# checks for system services
+# (none yet)
+
+# Linux requires this for correct f.p. operations
+AC_CHECK_FUNC(__fpu_control,
+  [],
+  [AC_CHECK_LIB(ieee, __fpu_control)
+])
+
+# Check for --with-fpectl
+AC_MSG_CHECKING(for --with-fpectl)
+AC_ARG_WITH(fpectl,
+            AC_HELP_STRING(--with-fpectl, enable SIGFPE catching),
+[
+if test "$withval" != no
+then
+  AC_DEFINE(WANT_SIGFPE_HANDLER, 1,
+  [Define if you want SIGFPE handled (see Include/pyfpe.h).])
+  AC_MSG_RESULT(yes)
+else AC_MSG_RESULT(no)
+fi],
+[AC_MSG_RESULT(no)])
+
+# check for --with-libm=...
+AC_SUBST(LIBM)
+case $ac_sys_system in
+Darwin) ;;
+*) LIBM=-lm
+esac
+AC_MSG_CHECKING(for --with-libm=STRING)
+AC_ARG_WITH(libm,
+            AC_HELP_STRING(--with-libm=STRING, math library),
+[
+if test "$withval" = no
+then LIBM=
+     AC_MSG_RESULT(force LIBM empty)
+elif test "$withval" != yes
+then LIBM=$withval
+     AC_MSG_RESULT(set LIBM="$withval")
+else AC_MSG_ERROR([proper usage is --with-libm=STRING])
+fi],
+[AC_MSG_RESULT(default LIBM="$LIBM")])
+
+# check for --with-libc=...
+AC_SUBST(LIBC)
+AC_MSG_CHECKING(for --with-libc=STRING)
+AC_ARG_WITH(libc,
+            AC_HELP_STRING(--with-libc=STRING, C library),
+[
+if test "$withval" = no
+then LIBC=
+     AC_MSG_RESULT(force LIBC empty)
+elif test "$withval" != yes
+then LIBC=$withval
+     AC_MSG_RESULT(set LIBC="$withval")
+else AC_MSG_ERROR([proper usage is --with-libc=STRING])
+fi],
+[AC_MSG_RESULT(default LIBC="$LIBC")])
+
+# **************************************************
+# * Check for various properties of floating point *
+# **************************************************
+
+AC_MSG_CHECKING(whether C doubles are little-endian IEEE 754 binary64)
+AC_CACHE_VAL(ac_cv_little_endian_double, [
+AC_TRY_RUN([
+#include <string.h>
+int main() {
+    double x = 9006104071832581.0;
+    if (memcmp(&x, "\x05\x04\x03\x02\x01\xff\x3f\x43", 8) == 0)
+        return 0;
+    else
+        return 1;
+}
+],
+ac_cv_little_endian_double=yes,
+ac_cv_little_endian_double=no,
+ac_cv_little_endian_double=no)])
+AC_MSG_RESULT($ac_cv_little_endian_double)
+if test "$ac_cv_little_endian_double" = yes
+then
+  AC_DEFINE(DOUBLE_IS_LITTLE_ENDIAN_IEEE754, 1,
+  [Define if C doubles are 64-bit IEEE 754 binary format, stored
+   with the least significant byte first])
+fi
+
+AC_MSG_CHECKING(whether C doubles are big-endian IEEE 754 binary64)
+AC_CACHE_VAL(ac_cv_big_endian_double, [
+AC_TRY_RUN([
+#include <string.h>
+int main() {
+    double x = 9006104071832581.0;
+    if (memcmp(&x, "\x43\x3f\xff\x01\x02\x03\x04\x05", 8) == 0)
+        return 0;
+    else
+        return 1;
+}
+],
+ac_cv_big_endian_double=yes,
+ac_cv_big_endian_double=no,
+ac_cv_big_endian_double=no)])
+AC_MSG_RESULT($ac_cv_big_endian_double)
+if test "$ac_cv_big_endian_double" = yes
+then
+  AC_DEFINE(DOUBLE_IS_BIG_ENDIAN_IEEE754, 1,
+  [Define if C doubles are 64-bit IEEE 754 binary format, stored
+   with the most significant byte first])
+fi
+
+# Some ARM platforms use a mixed-endian representation for doubles.
+# While Python doesn't currently have full support for these platforms
+# (see e.g., issue 1762561), we can at least make sure that float <-> string
+# conversions work.
+AC_MSG_CHECKING(whether C doubles are ARM mixed-endian IEEE 754 binary64)
+AC_CACHE_VAL(ac_cv_mixed_endian_double, [
+AC_TRY_RUN([
+#include <string.h>
+int main() {
+    double x = 9006104071832581.0;
+    if (memcmp(&x, "\x01\xff\x3f\x43\x05\x04\x03\x02", 8) == 0)
+        return 0;
+    else
+        return 1;
+}
+],
+ac_cv_mixed_endian_double=yes,
+ac_cv_mixed_endian_double=no,
+ac_cv_mixed_endian_double=no)])
+AC_MSG_RESULT($ac_cv_mixed_endian_double)
+if test "$ac_cv_mixed_endian_double" = yes
+then
+  AC_DEFINE(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754, 1,
+  [Define if C doubles are 64-bit IEEE 754 binary format, stored
+   in ARM mixed-endian order (byte order 45670123)])
+fi
+
+# The short float repr introduced in Python 3.1 requires the
+# correctly-rounded string <-> double conversion functions from
+# Python/dtoa.c, which in turn require that the FPU uses 53-bit
+# rounding; this is a problem on x86, where the x87 FPU has a default
+# rounding precision of 64 bits.  For gcc/x86, we try to fix this by
+# using inline assembler to get and set the x87 FPU control word.
+if test "$GCC" = yes && test -n "`$CC -dM -E - </dev/null | grep i386`"
+then
+    # Check that it's okay to use gcc inline assembler to get and set
+    # x87 control word.  It should be, but you never know...
+    AC_MSG_CHECKING(whether we can use gcc inline assembler to get and set x87 control word)
+    AC_TRY_COMPILE([], [
+      unsigned short cw;
+      __asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
+      __asm__ __volatile__ ("fldcw %0" : : "m" (cw));
+    ],
+    [have_gcc_asm_for_x87=yes], [have_gcc_asm_for_x87=no])
+    AC_MSG_RESULT($have_gcc_asm_for_x87)
+    if test "$have_gcc_asm_for_x87" = yes
+    then
+        AC_DEFINE(HAVE_GCC_ASM_FOR_X87, 1,
+        [Define if we can use gcc inline assembler to get and set x87 control word])
+    fi
+fi
+
+# Detect whether system arithmetic is subject to x87-style double
+# rounding issues.  The result of this test has little meaning on non
+# IEEE 754 platforms.  On IEEE 754, test should return 1 if rounding
+# mode is round-to-nearest and double rounding issues are present, and
+# 0 otherwise.  See http://bugs.python.org/issue2937 for more info.
+AC_MSG_CHECKING(for x87-style double rounding)
+# $BASECFLAGS may affect the result
+ac_save_cc="$CC"
+CC="$CC $BASECFLAGS"
+AC_TRY_RUN([
+#include <stdlib.h>
+#include <math.h>
+int main() {
+    volatile double x, y, z;
+    /* 1./(1-2**-53) -> 1+2**-52 (correct), 1.0 (double rounding) */
+    x = 0.99999999999999989; /* 1-2**-53 */
+    y = 1./x;
+    if (y != 1.)
+        exit(0);
+    /* 1e16+2.99999 -> 1e16+2. (correct), 1e16+4. (double rounding) */
+    x = 1e16;
+    y = 2.99999;
+    z = x + y;
+    if (z != 1e16+4.)
+        exit(0);
+    /* both tests show evidence of double rounding */
+    exit(1);
+}
+],
+ac_cv_x87_double_rounding=no,
+ac_cv_x87_double_rounding=yes,
+ac_cv_x87_double_rounding=no)
+CC="$ac_save_cc"
+AC_MSG_RESULT($ac_cv_x87_double_rounding)
+if test "$ac_cv_x87_double_rounding" = yes
+then
+  AC_DEFINE(X87_DOUBLE_ROUNDING, 1,
+  [Define if arithmetic is subject to x87-style double rounding issue])
+fi
+
+# ************************************
+# * Check for mathematical functions *
+# ************************************
+
+LIBS_SAVE=$LIBS
+LIBS="$LIBS $LIBM"
+
+# On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of
+# -0. on some architectures.
+AC_MSG_CHECKING(whether tanh preserves the sign of zero)
+AC_CACHE_VAL(ac_cv_tanh_preserves_zero_sign, [
+AC_TRY_RUN([
+#include <math.h>
+#include <stdlib.h>
+int main() {
+    /* return 0 if either negative zeros don't exist
+       on this platform or if negative zeros exist
+       and tanh(-0.) == -0. */
+  if (atan2(0., -1.) == atan2(-0., -1.) ||
+      atan2(tanh(-0.), -1.) == atan2(-0., -1.)) exit(0);
+  else exit(1);
+}
+],
+ac_cv_tanh_preserves_zero_sign=yes,
+ac_cv_tanh_preserves_zero_sign=no,
+ac_cv_tanh_preserves_zero_sign=no)])
+AC_MSG_RESULT($ac_cv_tanh_preserves_zero_sign)
+if test "$ac_cv_tanh_preserves_zero_sign" = yes
+then
+  AC_DEFINE(TANH_PRESERVES_ZERO_SIGN, 1,
+  [Define if tanh(-0.) is -0., or if platform doesn't have signed zeros])
+fi
+
+AC_CHECK_FUNCS([acosh asinh atanh copysign expm1 finite hypot log1p round])
+AC_CHECK_DECLS([isinf, isnan, isfinite], [], [], [[#include <math.h>]])
+
+LIBS=$LIBS_SAVE
+
+# For multiprocessing module, check that sem_open
+# actually works.  For FreeBSD versions <= 7.2,
+# the kernel module that provides POSIX semaphores
+# isn't loaded by default, so an attempt to call
+# sem_open results in a 'Signal 12' error.
+AC_MSG_CHECKING(whether POSIX semaphores are enabled)
+AC_CACHE_VAL(ac_cv_posix_semaphores_enabled,
+AC_TRY_RUN([
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <semaphore.h>
+#include <sys/stat.h>
+
+int main(void) {
+  sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
+  if (a == SEM_FAILED) {
+    perror("sem_open");
+    return 1;
+  }
+  sem_close(a);
+  sem_unlink("/autoconf");
+  return 0;
+}
+], ac_cv_posix_semaphores_enabled=yes,
+   ac_cv_posix_semaphores_enabled=no,
+   ac_cv_posix_semaphores_enabled=yes)
+)
+AC_MSG_RESULT($ac_cv_posix_semaphores_enabled)
+if test $ac_cv_posix_semaphores_enabled = no
+then
+  AC_DEFINE(POSIX_SEMAPHORES_NOT_ENABLED, 1,
+            [Define if POSIX semaphores aren't enabled on your system])
+fi
+
+# Multiprocessing check for broken sem_getvalue
+AC_MSG_CHECKING(for broken sem_getvalue)
+AC_TRY_RUN([
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <semaphore.h>
+#include <sys/stat.h>
+
+int main(void){
+  sem_t *a = sem_open("/autocftw", O_CREAT, S_IRUSR|S_IWUSR, 0);
+  int count;
+  int res;
+  if(a==SEM_FAILED){
+    perror("sem_open");
+    return 1;
+
+  }
+  res = sem_getvalue(a, &count);
+  sem_close(a);
+  sem_unlink("/autocftw");
+  return res==-1 ? 1 : 0;
+}
+]
+,AC_MSG_RESULT(no),
+ AC_MSG_RESULT(yes)
+  AC_DEFINE(HAVE_BROKEN_SEM_GETVALUE, 1, define to 1 if your sem_getvalue is broken.)
+)
+
+# determine what size digit to use for Python's longs
+AC_MSG_CHECKING([digit size for Python's longs])
+AC_ARG_ENABLE(big-digits,
+AC_HELP_STRING([--enable-big-digits@<:@=BITS@:>@],[use big digits for Python longs [[BITS=30]]]),
+[case $enable_big_digits in
+yes)
+  enable_big_digits=30 ;;
+no)
+  enable_big_digits=15 ;;
+[15|30])
+  ;;
+*)
+  AC_MSG_ERROR([bad value $enable_big_digits for --enable-big-digits; value should be 15 or 30]) ;;
+esac
+AC_MSG_RESULT($enable_big_digits)
+AC_DEFINE_UNQUOTED(PYLONG_BITS_IN_DIGIT, $enable_big_digits, [Define as the preferred size in bits of long digits])
+],
+[AC_MSG_RESULT(no value specified)])
+
+# check for wchar.h
+AC_CHECK_HEADER(wchar.h, [
+  AC_DEFINE(HAVE_WCHAR_H, 1,
+  [Define if the compiler provides a wchar.h header file.])
+  wchar_h="yes"
+],
+wchar_h="no"
+)
+
+# determine wchar_t size
+if test "$wchar_h" = yes
+then
+  AC_CHECK_SIZEOF(wchar_t, 4, [#include <wchar.h>])
+fi
+
+AC_MSG_CHECKING(for UCS-4 tcl)
+have_ucs4_tcl=no
+AC_TRY_COMPILE([
+#include <tcl.h>
+#if TCL_UTF_MAX != 6
+# error "NOT UCS4_TCL"
+#endif], [], [
+  AC_DEFINE(HAVE_UCS4_TCL, 1, [Define this if you have tcl and TCL_UTF_MAX==6])
+  have_ucs4_tcl=yes
+])
+AC_MSG_RESULT($have_ucs4_tcl)
+
+# check whether wchar_t is signed or not
+if test "$wchar_h" = yes
+then
+  # check whether wchar_t is signed or not
+  AC_MSG_CHECKING(whether wchar_t is signed)
+  AC_CACHE_VAL(ac_cv_wchar_t_signed, [
+  AC_TRY_RUN([
+  #include <wchar.h>
+  int main()
+  {
+	/* Success: exit code 0 */
+        exit((((wchar_t) -1) < ((wchar_t) 0)) ? 0 : 1);
+  }
+  ],
+  ac_cv_wchar_t_signed=yes,
+  ac_cv_wchar_t_signed=no,
+  ac_cv_wchar_t_signed=yes)])
+  AC_MSG_RESULT($ac_cv_wchar_t_signed)
+fi
+
+AC_MSG_CHECKING(what type to use for str)
+AC_ARG_WITH(wide-unicode,
+            AC_HELP_STRING(--with-wide-unicode, Use 4-byte Unicode characters (default is 2 bytes)),
+[
+if test "$withval" != no
+then unicode_size="4"
+else unicode_size="2"
+fi
+],
+[
+case "$have_ucs4_tcl" in
+  yes) unicode_size="4" ;;
+  *)   unicode_size="2" ;;
+esac
+])
+
+AH_TEMPLATE(Py_UNICODE_SIZE,
+  [Define as the size of the unicode type.])
+case "$unicode_size" in
+  4) AC_DEFINE(Py_UNICODE_SIZE, 4) ;;
+  *) AC_DEFINE(Py_UNICODE_SIZE, 2) ;;
+esac
+
+AH_TEMPLATE(PY_UNICODE_TYPE,
+  [Define as the integral type used for Unicode representation.])
+
+# wchar_t is only usable if it maps to an unsigned type
+if test "$unicode_size" = "$ac_cv_sizeof_wchar_t" \
+          -a "$ac_cv_wchar_t_signed" = "no"
+then
+  PY_UNICODE_TYPE="wchar_t"
+  AC_DEFINE(HAVE_USABLE_WCHAR_T, 1,
+  [Define if you have a useable wchar_t type defined in wchar.h; useable
+   means wchar_t must be an unsigned type with at least 16 bits. (see
+   Include/unicodeobject.h).])
+  AC_DEFINE(PY_UNICODE_TYPE,wchar_t)
+elif test "$ac_cv_sizeof_short" = "$unicode_size"
+then
+     PY_UNICODE_TYPE="unsigned short"
+     AC_DEFINE(PY_UNICODE_TYPE,unsigned short)
+elif test "$ac_cv_sizeof_long" = "$unicode_size"
+then
+     PY_UNICODE_TYPE="unsigned long"
+     AC_DEFINE(PY_UNICODE_TYPE,unsigned long)
+else
+     PY_UNICODE_TYPE="no type found"
+fi
+AC_MSG_RESULT($PY_UNICODE_TYPE)
+
+# check for endianness
+AC_C_BIGENDIAN
+
+# Check whether right shifting a negative integer extends the sign bit
+# or fills with zeros (like the Cray J90, according to Tim Peters).
+AC_MSG_CHECKING(whether right shift extends the sign bit)
+AC_CACHE_VAL(ac_cv_rshift_extends_sign, [
+AC_TRY_RUN([
+int main()
+{
+	exit(((-1)>>3 == -1) ? 0 : 1);
+}
+],
+ac_cv_rshift_extends_sign=yes,
+ac_cv_rshift_extends_sign=no,
+ac_cv_rshift_extends_sign=yes)])
+AC_MSG_RESULT($ac_cv_rshift_extends_sign)
+if test "$ac_cv_rshift_extends_sign" = no
+then
+  AC_DEFINE(SIGNED_RIGHT_SHIFT_ZERO_FILLS, 1,
+  [Define if i>>j for signed int i does not extend the sign bit
+   when i < 0])
+fi
+
+# check for getc_unlocked and related locking functions
+AC_MSG_CHECKING(for getc_unlocked() and friends)
+AC_CACHE_VAL(ac_cv_have_getc_unlocked, [
+AC_TRY_LINK([#include <stdio.h>],[
+	FILE *f = fopen("/dev/null", "r");
+	flockfile(f);
+	getc_unlocked(f);
+	funlockfile(f);
+], ac_cv_have_getc_unlocked=yes, ac_cv_have_getc_unlocked=no)])
+AC_MSG_RESULT($ac_cv_have_getc_unlocked)
+if test "$ac_cv_have_getc_unlocked" = yes
+then
+  AC_DEFINE(HAVE_GETC_UNLOCKED, 1,
+  [Define this if you have flockfile(), getc_unlocked(), and funlockfile()])
+fi
+
+# check where readline lives
+# save the value of LIBS so we don't actually link Python with readline
+LIBS_no_readline=$LIBS
+
+# On some systems we need to link readline to a termcap compatible
+# library.  NOTE: Keep the precedence of listed libraries synchronised
+# with setup.py.
+py_cv_lib_readline=no
+AC_MSG_CHECKING([how to link readline libs])
+for py_libtermcap in "" ncursesw ncurses curses termcap; do
+  if test -z "$py_libtermcap"; then
+    READLINE_LIBS="-lreadline"
+  else
+    READLINE_LIBS="-lreadline -l$py_libtermcap"
+  fi
+  LIBS="$READLINE_LIBS $LIBS_no_readline"
+  AC_LINK_IFELSE(
+    [AC_LANG_CALL([],[readline])],
+    [py_cv_lib_readline=yes])
+  if test $py_cv_lib_readline = yes; then
+    break
+  fi
+done
+# Uncomment this line if you want to use READINE_LIBS in Makefile or scripts
+#AC_SUBST([READLINE_LIBS])
+if test $py_cv_lib_readline = no; then
+  AC_MSG_RESULT([none])
+else
+  AC_MSG_RESULT([$READLINE_LIBS])
+  AC_DEFINE(HAVE_LIBREADLINE, 1,
+    [Define if you have the readline library (-lreadline).])
+fi
+
+# check for readline 2.1
+AC_CHECK_LIB(readline, rl_callback_handler_install,
+	AC_DEFINE(HAVE_RL_CALLBACK, 1,
+        [Define if you have readline 2.1]), ,$READLINE_LIBS)
+
+# check for readline 2.2
+AC_TRY_CPP([#include <readline/readline.h>],
+have_readline=yes, have_readline=no)
+if test $have_readline = yes
+then
+  AC_EGREP_HEADER([extern int rl_completion_append_character;],
+  [readline/readline.h],
+  AC_DEFINE(HAVE_RL_COMPLETION_APPEND_CHARACTER, 1,
+  [Define if you have readline 2.2]), )
+  AC_EGREP_HEADER([extern int rl_completion_suppress_append;],
+  [readline/readline.h],
+  AC_DEFINE(HAVE_RL_COMPLETION_SUPPRESS_APPEND, 1,
+  [Define if you have rl_completion_suppress_append]), )
+fi
+
+# check for readline 4.0
+AC_CHECK_LIB(readline, rl_pre_input_hook,
+	AC_DEFINE(HAVE_RL_PRE_INPUT_HOOK, 1,
+        [Define if you have readline 4.0]), ,$READLINE_LIBS)
+
+# also in 4.0
+AC_CHECK_LIB(readline, rl_completion_display_matches_hook,
+	AC_DEFINE(HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK, 1,
+        [Define if you have readline 4.0]), ,$READLINE_LIBS)
+
+# check for readline 4.2
+AC_CHECK_LIB(readline, rl_completion_matches,
+	AC_DEFINE(HAVE_RL_COMPLETION_MATCHES, 1,
+        [Define if you have readline 4.2]), ,$READLINE_LIBS)
+
+# also in readline 4.2
+AC_TRY_CPP([#include <readline/readline.h>],
+have_readline=yes, have_readline=no)
+if test $have_readline = yes
+then
+  AC_EGREP_HEADER([extern int rl_catch_signals;],
+  [readline/readline.h],
+  AC_DEFINE(HAVE_RL_CATCH_SIGNAL, 1,
+  [Define if you can turn off readline's signal handling.]), )
+fi
+
+# End of readline checks: restore LIBS
+LIBS=$LIBS_no_readline
+
+AC_MSG_CHECKING(for broken nice())
+AC_CACHE_VAL(ac_cv_broken_nice, [
+AC_TRY_RUN([
+int main()
+{
+	int val1 = nice(1);
+	if (val1 != -1 && val1 == nice(2))
+		exit(0);
+	exit(1);
+}
+],
+ac_cv_broken_nice=yes,
+ac_cv_broken_nice=no,
+ac_cv_broken_nice=no)])
+AC_MSG_RESULT($ac_cv_broken_nice)
+if test "$ac_cv_broken_nice" = yes
+then
+  AC_DEFINE(HAVE_BROKEN_NICE, 1,
+  [Define if nice() returns success/failure instead of the new priority.])
+fi
+
+AC_MSG_CHECKING(for broken poll())
+AC_TRY_RUN([
+#include <poll.h>
+
+int main (void)
+    {
+    struct pollfd poll_struct = { 42, POLLIN|POLLPRI|POLLOUT, 0 };
+
+    close (42);
+
+    int poll_test = poll (&poll_struct, 1, 0);
+
+    if (poll_test < 0)
+        {
+        exit(0);
+        }
+    else if (poll_test == 0 && poll_struct.revents != POLLNVAL)
+        {
+        exit(0);
+        }
+    else
+        {
+        exit(1);
+        }
+    }
+],
+ac_cv_broken_poll=yes,
+ac_cv_broken_poll=no,
+ac_cv_broken_poll=no)
+AC_MSG_RESULT($ac_cv_broken_poll)
+if test "$ac_cv_broken_poll" = yes
+then
+  AC_DEFINE(HAVE_BROKEN_POLL, 1,
+      [Define if poll() sets errno on invalid file descriptors.])
+fi
+
+# Before we can test tzset, we need to check if struct tm has a tm_zone
+# (which is not required by ISO C or UNIX spec) and/or if we support
+# tzname[]
+AC_STRUCT_TIMEZONE
+
+# check tzset(3) exists and works like we expect it to
+AC_MSG_CHECKING(for working tzset())
+AC_CACHE_VAL(ac_cv_working_tzset, [
+AC_TRY_RUN([
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+
+#if HAVE_TZNAME
+extern char *tzname[];
+#endif
+
+int main()
+{
+	/* Note that we need to ensure that not only does tzset(3)
+	   do 'something' with localtime, but it works as documented
+	   in the library reference and as expected by the test suite.
+	   This includes making sure that tzname is set properly if
+	   tm->tm_zone does not exist since it is the alternative way
+	   of getting timezone info.
+
+	   Red Hat 6.2 doesn't understand the southern hemisphere
+	   after New Year's Day.
+	*/
+
+	time_t groundhogday = 1044144000; /* GMT-based */
+	time_t midyear = groundhogday + (365 * 24 * 3600 / 2);
+
+	putenv("TZ=UTC+0");
+	tzset();
+	if (localtime(&groundhogday)->tm_hour != 0)
+	    exit(1);
+#if HAVE_TZNAME
+	/* For UTC, tzname[1] is sometimes "", sometimes "   " */
+	if (strcmp(tzname[0], "UTC") ||
+		(tzname[1][0] != 0 && tzname[1][0] != ' '))
+	    exit(1);
+#endif
+
+	putenv("TZ=EST+5EDT,M4.1.0,M10.5.0");
+	tzset();
+	if (localtime(&groundhogday)->tm_hour != 19)
+	    exit(1);
+#if HAVE_TZNAME
+	if (strcmp(tzname[0], "EST") || strcmp(tzname[1], "EDT"))
+	    exit(1);
+#endif
+
+	putenv("TZ=AEST-10AEDT-11,M10.5.0,M3.5.0");
+	tzset();
+	if (localtime(&groundhogday)->tm_hour != 11)
+	    exit(1);
+#if HAVE_TZNAME
+	if (strcmp(tzname[0], "AEST") || strcmp(tzname[1], "AEDT"))
+	    exit(1);
+#endif
+
+#if HAVE_STRUCT_TM_TM_ZONE
+	if (strcmp(localtime(&groundhogday)->tm_zone, "AEDT"))
+	    exit(1);
+	if (strcmp(localtime(&midyear)->tm_zone, "AEST"))
+	    exit(1);
+#endif
+
+	exit(0);
+}
+],
+ac_cv_working_tzset=yes,
+ac_cv_working_tzset=no,
+ac_cv_working_tzset=no)])
+AC_MSG_RESULT($ac_cv_working_tzset)
+if test "$ac_cv_working_tzset" = yes
+then
+  AC_DEFINE(HAVE_WORKING_TZSET, 1,
+  [Define if tzset() actually switches the local timezone in a meaningful way.])
+fi
+
+# Look for subsecond timestamps in struct stat
+AC_MSG_CHECKING(for tv_nsec in struct stat)
+AC_CACHE_VAL(ac_cv_stat_tv_nsec,
+AC_TRY_COMPILE([#include <sys/stat.h>], [
+struct stat st;
+st.st_mtim.tv_nsec = 1;
+],
+ac_cv_stat_tv_nsec=yes,
+ac_cv_stat_tv_nsec=no,
+ac_cv_stat_tv_nsec=no))
+AC_MSG_RESULT($ac_cv_stat_tv_nsec)
+if test "$ac_cv_stat_tv_nsec" = yes
+then
+  AC_DEFINE(HAVE_STAT_TV_NSEC, 1,
+  [Define if you have struct stat.st_mtim.tv_nsec])
+fi
+
+# Look for BSD style subsecond timestamps in struct stat
+AC_MSG_CHECKING(for tv_nsec2 in struct stat)
+AC_CACHE_VAL(ac_cv_stat_tv_nsec2,
+AC_TRY_COMPILE([#include <sys/stat.h>], [
+struct stat st;
+st.st_mtimespec.tv_nsec = 1;
+],
+ac_cv_stat_tv_nsec2=yes,
+ac_cv_stat_tv_nsec2=no,
+ac_cv_stat_tv_nsec2=no))
+AC_MSG_RESULT($ac_cv_stat_tv_nsec2)
+if test "$ac_cv_stat_tv_nsec2" = yes
+then
+  AC_DEFINE(HAVE_STAT_TV_NSEC2, 1,
+  [Define if you have struct stat.st_mtimensec])
+fi
+
+# On HP/UX 11.0, mvwdelch is a block with a return statement
+AC_MSG_CHECKING(whether mvwdelch is an expression)
+AC_CACHE_VAL(ac_cv_mvwdelch_is_expression,
+AC_TRY_COMPILE([#include <curses.h>], [
+  int rtn;
+  rtn = mvwdelch(0,0,0);
+], ac_cv_mvwdelch_is_expression=yes,
+   ac_cv_mvwdelch_is_expression=no,
+   ac_cv_mvwdelch_is_expression=yes))
+AC_MSG_RESULT($ac_cv_mvwdelch_is_expression)
+
+if test "$ac_cv_mvwdelch_is_expression" = yes
+then
+  AC_DEFINE(MVWDELCH_IS_EXPRESSION, 1,
+  [Define if mvwdelch in curses.h is an expression.])
+fi
+
+AC_MSG_CHECKING(whether WINDOW has _flags)
+AC_CACHE_VAL(ac_cv_window_has_flags,
+AC_TRY_COMPILE([#include <curses.h>], [
+  WINDOW *w;
+  w->_flags = 0;
+], ac_cv_window_has_flags=yes,
+   ac_cv_window_has_flags=no,
+   ac_cv_window_has_flags=no))
+AC_MSG_RESULT($ac_cv_window_has_flags)
+
+
+if test "$ac_cv_window_has_flags" = yes
+then
+  AC_DEFINE(WINDOW_HAS_FLAGS, 1,
+  [Define if WINDOW in curses.h offers a field _flags.])
+fi
+
+AC_MSG_CHECKING(for is_term_resized)
+AC_TRY_COMPILE([#include <curses.h>], void *x=is_term_resized,
+  AC_DEFINE(HAVE_CURSES_IS_TERM_RESIZED, 1, Define if you have the 'is_term_resized' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for resize_term)
+AC_TRY_COMPILE([#include <curses.h>], void *x=resize_term,
+  AC_DEFINE(HAVE_CURSES_RESIZE_TERM, 1, Define if you have the 'resize_term' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for resizeterm)
+AC_TRY_COMPILE([#include <curses.h>], void *x=resizeterm,
+  AC_DEFINE(HAVE_CURSES_RESIZETERM, 1, Define if you have the 'resizeterm' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for /dev/ptmx)
+
+if test -r /dev/ptmx
+then
+  AC_MSG_RESULT(yes)
+  AC_DEFINE(HAVE_DEV_PTMX, 1,
+  [Define if we have /dev/ptmx.])
+else
+  AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(for /dev/ptc)
+
+if test -r /dev/ptc
+then
+  AC_MSG_RESULT(yes)
+  AC_DEFINE(HAVE_DEV_PTC, 1,
+  [Define if we have /dev/ptc.])
+else
+  AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(for %zd printf() format support)
+AC_TRY_RUN([#include <stdio.h>
+#include <stddef.h>
+#include <string.h>
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef HAVE_SSIZE_T
+typedef ssize_t Py_ssize_t;
+#elif SIZEOF_VOID_P == SIZEOF_LONG
+typedef long Py_ssize_t;
+#else
+typedef int Py_ssize_t;
+#endif
+
+int main()
+{
+    char buffer[256];
+
+    if(sprintf(buffer, "%zd", (size_t)123) < 0)
+       	return 1;
+
+    if (strcmp(buffer, "123"))
+	return 1;
+
+    if (sprintf(buffer, "%zd", (Py_ssize_t)-123) < 0)
+       	return 1;
+
+    if (strcmp(buffer, "-123"))
+	return 1;
+
+    return 0;
+}],
+[AC_MSG_RESULT(yes)
+ AC_DEFINE(PY_FORMAT_SIZE_T, "z", [Define to printf format modifier for Py_ssize_t])],
+ AC_MSG_RESULT(no))
+
+AC_CHECK_TYPE(socklen_t,,
+  AC_DEFINE(socklen_t,int,
+            Define to `int' if <sys/socket.h> does not define.),[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+])
+
+AC_MSG_CHECKING(for broken mbstowcs)
+AC_TRY_RUN([
+#include<stdlib.h>
+int main() {
+    size_t len = -1;
+    const char *str = "text";
+    len = mbstowcs(NULL, str, 0);
+    return (len != 4);
+}
+],
+ac_cv_broken_mbstowcs=no,
+ac_cv_broken_mbstowcs=yes,
+ac_cv_broken_mbstowcs=no)
+AC_MSG_RESULT($ac_cv_broken_mbstowcs)
+if test "$ac_cv_broken_mbstowcs" = yes
+then
+  AC_DEFINE(HAVE_BROKEN_MBSTOWCS, 1,
+  [Define if mbstowcs(NULL, "text", 0) does not return the number of
+   wide chars that would be converted.])
+fi
+
+# Check for --with-computed-gotos
+AC_MSG_CHECKING(for --with-computed-gotos)
+AC_ARG_WITH(computed-gotos,
+            AC_HELP_STRING(--with-computed-gotos,
+                           Use computed gotos / threaded dispatch in evaluation loop (not available on all compilers)),
+[
+if test "$withval" != no
+then
+  AC_DEFINE(USE_COMPUTED_GOTOS, 1,
+  [Define if you want to use computed gotos in ceval.c.])
+  AC_MSG_RESULT(yes)
+else AC_MSG_RESULT(no)
+fi],
+[AC_MSG_RESULT(no)])
+
+if test $ac_sys_system = Darwin
+then
+	LIBS="$LIBS -framework CoreFoundation"
+fi
+
+
+
+AC_SUBST(THREADHEADERS)
+
+for h in `(cd $srcdir;echo Python/thread_*.h)`
+do
+  THREADHEADERS="$THREADHEADERS \$(srcdir)/$h"
+done
+
+AC_SUBST(SRCDIRS)
+SRCDIRS="Parser Grammar Objects Python Modules Mac"
+AC_MSG_CHECKING(for build directories)
+for dir in $SRCDIRS; do
+    if test ! -d $dir; then
+        mkdir $dir
+    fi
+done
+AC_MSG_RESULT(done)
+
+# generate output files
+AC_CONFIG_FILES(Makefile.pre Modules/Setup.config Misc/python.pc)
+AC_CONFIG_FILES([Modules/ld_so_aix], [chmod +x Modules/ld_so_aix])
+AC_OUTPUT
+
+echo "creating Modules/Setup"
+if test ! -f Modules/Setup
+then
+	cp $srcdir/Modules/Setup.dist Modules/Setup
+fi
+
+echo "creating Modules/Setup.local"
+if test ! -f Modules/Setup.local
+then
+	echo "# Edit this file for local setup changes" >Modules/Setup.local
+fi
+
+echo "creating Makefile"
+$SHELL $srcdir/Modules/makesetup -c $srcdir/Modules/config.c.in \
+			-s Modules Modules/Setup.config \
+			Modules/Setup.local Modules/Setup
+mv config.c Modules
--- a/configure.in	Thu Mar 15 13:57:27 2012 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,4158 +0,0 @@
-dnl ***********************************************
-dnl * Please run autoreconf to test your changes! *
-dnl ***********************************************
-dnl NOTE: autoconf 2.64 doesn't seem to work (use 2.61).
-
-# Set VERSION so we only need to edit in one place (i.e., here)
-m4_define(PYTHON_VERSION, 3.1)
-
-AC_REVISION($Revision$)
-AC_PREREQ(2.61)
-AC_INIT(python, PYTHON_VERSION, http://bugs.python.org/)
-AC_CONFIG_SRCDIR([Include/object.h])
-AC_CONFIG_HEADER(pyconfig.h)
-
-dnl Ensure that if prefix is specified, it does not end in a slash. If
-dnl it does, we get path names containing '//' which is both ugly and
-dnl can cause trouble.
-
-dnl Last slash shouldn't be stripped if prefix=/
-if test "$prefix" != "/"; then
-    prefix=`echo "$prefix" | sed -e 's/\/$//g'`
-fi
-
-dnl This is for stuff that absolutely must end up in pyconfig.h.
-dnl Please use pyport.h instead, if possible.
-AH_TOP([
-#ifndef Py_PYCONFIG_H
-#define Py_PYCONFIG_H
-])
-AH_BOTTOM([
-/* Define the macros needed if on a UnixWare 7.x system. */
-#if defined(__USLC__) && defined(__SCO_VERSION__)
-#define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
-#endif
-
-#endif /*Py_PYCONFIG_H*/
-])
-
-# We don't use PACKAGE_ variables, and they cause conflicts
-# with other autoconf-based packages that include Python.h
-grep -v 'define PACKAGE_' <confdefs.h >confdefs.h.new
-rm confdefs.h
-mv confdefs.h.new confdefs.h
-
-AC_SUBST(VERSION)
-VERSION=PYTHON_VERSION
-
-AC_SUBST(SOVERSION)
-SOVERSION=1.0
-
-# The later defininition of _XOPEN_SOURCE disables certain features
-# on Linux, so we need _GNU_SOURCE to re-enable them (makedev, tm_zone).
-AC_DEFINE(_GNU_SOURCE, 1, [Define on Linux to activate all library features])
-
-# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
-# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
-# them.
-AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])
-
-# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
-# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
-# them.
-AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
-
-# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
-# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
-AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])
-
-# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
-# certain features on Mac OS X, so we need _DARWIN_C_SOURCE to re-enable
-# them.
-AC_DEFINE(_DARWIN_C_SOURCE, 1, [Define on Darwin to activate all library features])
-
-
-define_xopen_source=yes
-
-# Arguments passed to configure.
-AC_SUBST(CONFIG_ARGS)
-CONFIG_ARGS="$ac_configure_args"
-
-AC_MSG_CHECKING([for --enable-universalsdk])
-AC_ARG_ENABLE(universalsdk,
-	AC_HELP_STRING(--enable-universalsdk@<:@=SDKDIR@:>@, Build against Mac OS X 10.4u SDK (ppc/i386)),
-[
-	case $enableval in
-	yes)
-		enableval=/Developer/SDKs/MacOSX10.4u.sdk
-		if test ! -d "${enableval}"
-		then
-			enableval=/
-		fi
-		;;
-	esac
-	case $enableval in
-	no)
-		UNIVERSALSDK=
-		enable_universalsdk=
-		;;
-	*)
-		UNIVERSALSDK=$enableval
-		if test ! -d "${UNIVERSALSDK}"
-		then
-			AC_MSG_ERROR([--enable-universalsdk specifies non-existing SDK: ${UNIVERSALSDK}])
-		fi
-		;;
-	esac
-
-],[
-   	UNIVERSALSDK=
-	enable_universalsdk=
-])
-if test -n "${UNIVERSALSDK}"
-then
-	AC_MSG_RESULT(${UNIVERSALSDK})
-else
-	AC_MSG_RESULT(no)
-fi
-AC_SUBST(UNIVERSALSDK)
-
-AC_SUBST(ARCH_RUN_32BIT)
-
-UNIVERSAL_ARCHS="32-bit"
-AC_SUBST(LIPO_32BIT_FLAGS)
-AC_SUBST(LIPO_64BIT_FLAGS)
-AC_MSG_CHECKING(for --with-universal-archs)
-AC_ARG_WITH(universal-archs,
-    AC_HELP_STRING(--with-universal-archs=ARCH, select architectures for universal build ("32-bit", "64-bit", "3-way", "intel" or "all")),
-[
-	AC_MSG_RESULT($withval)
-	UNIVERSAL_ARCHS="$withval"
-],
-[
- 	AC_MSG_RESULT(32-bit)
-])
-
-
-
-AC_ARG_WITH(framework-name,
-              AC_HELP_STRING(--with-framework-name=FRAMEWORK,
-                             specify an alternate name of the framework built with --enable-framework),
-[
-    PYTHONFRAMEWORK=${withval}
-    PYTHONFRAMEWORKDIR=${withval}.framework
-    PYTHONFRAMEWORKIDENTIFIER=org.python.`echo $withval | tr '[A-Z]' '[a-z]'`
-    ],[
-    PYTHONFRAMEWORK=Python
-    PYTHONFRAMEWORKDIR=Python.framework
-    PYTHONFRAMEWORKIDENTIFIER=org.python.python
-])
-dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
-AC_ARG_ENABLE(framework,
-              AC_HELP_STRING(--enable-framework@<:@=INSTALLDIR@:>@, Build (MacOSX|Darwin) framework),
-[
-	case $enableval in
-	yes)
-		enableval=/Library/Frameworks
-	esac
-	case $enableval in
-	no)
-		PYTHONFRAMEWORK=
-		PYTHONFRAMEWORKDIR=no-framework
-		PYTHONFRAMEWORKPREFIX=
-		PYTHONFRAMEWORKINSTALLDIR=
-		FRAMEWORKINSTALLFIRST=
-		FRAMEWORKINSTALLLAST=
-		FRAMEWORKALTINSTALLFIRST=
-		FRAMEWORKALTINSTALLLAST=
-		if test "x${prefix}" = "xNONE"; then
-			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
-		else
-			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
-		fi
-		enable_framework=
-		;;
-	*)
-		PYTHONFRAMEWORKPREFIX=$enableval
-		PYTHONFRAMEWORKINSTALLDIR=$PYTHONFRAMEWORKPREFIX/$PYTHONFRAMEWORKDIR
-		FRAMEWORKINSTALLFIRST="frameworkinstallstructure"
-		FRAMEWORKALTINSTALLFIRST="frameworkinstallstructure "
-		case "${UNIVERSAL_ARCHS}" in
-		all|3-way|intel)
-			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkinstallunixtools4way"
-			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps4way frameworkaltinstallunixtools4way"
-			;;
-		*)
-			FRAMEWORKINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkinstallunixtools"
-			FRAMEWORKALTINSTALLLAST="frameworkinstallmaclib frameworkinstallapps frameworkaltinstallunixtools"
-			;;
-		esac
-
-		if test "x${prefix}" = "xNONE" ; then
-			FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
-		else
-			FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
-		fi
-		prefix=$PYTHONFRAMEWORKINSTALLDIR/Versions/$VERSION
-
-		# Add files for Mac specific code to the list of output
-		# files:
-		AC_CONFIG_FILES(Mac/Makefile)
-		AC_CONFIG_FILES(Mac/PythonLauncher/Makefile)
-		AC_CONFIG_FILES(Mac/Resources/framework/Info.plist)
-		AC_CONFIG_FILES(Mac/Resources/app/Info.plist)
-	esac
-	],[
-	PYTHONFRAMEWORK=
-	PYTHONFRAMEWORKDIR=no-framework
-	PYTHONFRAMEWORKPREFIX=
-	PYTHONFRAMEWORKINSTALLDIR=
-	FRAMEWORKINSTALLFIRST=
-	FRAMEWORKINSTALLLAST=
-	FRAMEWORKALTINSTALLFIRST=
-	FRAMEWORKALTINSTALLLAST=
-	if test "x${prefix}" = "xNONE" ; then
-		FRAMEWORKUNIXTOOLSPREFIX="${ac_default_prefix}"
-	else
-		FRAMEWORKUNIXTOOLSPREFIX="${prefix}"
-	fi
-	enable_framework=
-
-	if test "$UNIVERSAL_ARCHS" = "all"
-	then
-		FRAMEWORKINSTALLLAST=update4wayuniversal
-		FRAMEWORKALTINSTALLLAST=update4wayuniversal
-	fi
-])
-AC_SUBST(PYTHONFRAMEWORK)
-AC_SUBST(PYTHONFRAMEWORKIDENTIFIER)
-AC_SUBST(PYTHONFRAMEWORKDIR)
-AC_SUBST(PYTHONFRAMEWORKPREFIX)
-AC_SUBST(PYTHONFRAMEWORKINSTALLDIR)
-AC_SUBST(FRAMEWORKINSTALLFIRST)
-AC_SUBST(FRAMEWORKINSTALLLAST)
-AC_SUBST(FRAMEWORKALTINSTALLFIRST)
-AC_SUBST(FRAMEWORKALTINSTALLLAST)
-AC_SUBST(FRAMEWORKUNIXTOOLSPREFIX)
-
-##AC_ARG_WITH(dyld,
-##            AC_HELP_STRING(--with-dyld,
-##                           Use (OpenStep|Rhapsody) dynamic linker))
-##
-# Set name for machine-dependent library files
-AC_SUBST(MACHDEP)
-AC_MSG_CHECKING(MACHDEP)
-if test -z "$MACHDEP"
-then
-	ac_sys_system=`uname -s`
-	if test "$ac_sys_system" = "AIX" \
-	-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then
-		ac_sys_release=`uname -v`
-	else
-		ac_sys_release=`uname -r`
-	fi
-	ac_md_system=`echo $ac_sys_system |
-			   tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'`
-	ac_md_release=`echo $ac_sys_release |
-			   tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'`
-	MACHDEP="$ac_md_system$ac_md_release"
-
-	case $MACHDEP in
-	cygwin*) MACHDEP="cygwin";;
-	darwin*) MACHDEP="darwin";;
-	atheos*) MACHDEP="atheos";;
-        irix646) MACHDEP="irix6";;
-	'')	MACHDEP="unknown";;
-	esac
-fi
-
-# Some systems cannot stand _XOPEN_SOURCE being defined at all; they
-# disable features if it is defined, without any means to access these
-# features as extensions. For these systems, we skip the definition of
-# _XOPEN_SOURCE. Before adding a system to the list to gain access to
-# some feature, make sure there is no alternative way to access this
-# feature. Also, when using wildcards, make sure you have verified the
-# need for not defining _XOPEN_SOURCE on all systems matching the
-# wildcard, and that the wildcard does not include future systems
-# (which may remove their limitations).
-dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
-case $ac_sys_system/$ac_sys_release in
-  # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
-  # even though select is a POSIX function. Reported by J. Ribbens.
-  # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
-  # In addition, Stefan Krah confirms that issue #1244610 exists through
-  # OpenBSD 4.6, but is fixed in 4.7.
-  OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123456@:>@)
-    define_xopen_source=no
-    # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
-    # also defined. This can be overridden by defining _BSD_SOURCE
-    # As this has a different meaning on Linux, only define it on OpenBSD
-    AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
-    ;;
-  OpenBSD/4.@<:@789@:>@)
-    # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
-    # also defined. This can be overridden by defining _BSD_SOURCE
-    # As this has a different meaning on Linux, only define it on OpenBSD
-    AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
-    ;;
-  # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
-  # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
-  # Marc Recht
-  NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6@<:@A-S@:>@)
-    define_xopen_source=no;;
-  # On Solaris 2.6, sys/wait.h is inconsistent in the usage
-  # of union __?sigval. Reported by Stuart Bishop.
-  SunOS/5.6)
-    define_xopen_source=no;;
-  # On UnixWare 7, u_long is never defined with _XOPEN_SOURCE,
-  # but used in /usr/include/netinet/tcp.h. Reported by Tim Rice.
-  # Reconfirmed for 7.1.4 by Martin v. Loewis.
-  OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-4@:>@)
-    define_xopen_source=no;;
-  # On OpenServer 5, u_short is never defined with _XOPEN_SOURCE,
-  # but used in struct sockaddr.sa_family. Reported by Tim Rice.
-  SCO_SV/3.2)
-    define_xopen_source=no;;
-  # On FreeBSD 4, the math functions C89 does not cover are never defined
-  # with _XOPEN_SOURCE and __BSD_VISIBLE does not re-enable them.
-  FreeBSD/4.*)
-    define_xopen_source=no;;
-  # On MacOS X 10.2, a bug in ncurses.h means that it craps out if
-  # _XOPEN_EXTENDED_SOURCE is defined. Apparently, this is fixed in 10.3, which
-  # identifies itself as Darwin/7.*
-  # On Mac OS X 10.4, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
-  # disables platform specific features beyond repair.
-  # On Mac OS X 10.3, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
-  # has no effect, don't bother defining them
-  Darwin/@<:@6789@:>@.*)
-    define_xopen_source=no;;
-  Darwin/1@<:@0-9@:>@.*)
-    define_xopen_source=no;;
-  # On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
-  # used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
-  # or has another value. By not (re)defining it, the defaults come in place.
-  AIX/4)
-    define_xopen_source=no;;
-  AIX/5)
-    if test `uname -r` -eq 1; then
-      define_xopen_source=no
-    fi
-    ;;
-  # On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
-  # defining NI_NUMERICHOST.
-  QNX/6.3.2)
-    define_xopen_source=no
-    ;;
-
-esac
-
-if test $define_xopen_source = yes
-then
-  # On Solaris w/ g++ it appears that _XOPEN_SOURCE has to be
-  # defined precisely as g++ defines it
-  # Furthermore, on Solaris 10, XPG6 requires the use of a C99
-  # compiler
-  case $ac_sys_system/$ac_sys_release in
-    SunOS/5.8|SunOS/5.9|SunOS/5.10|SunOS/5.11)
-      AC_DEFINE(_XOPEN_SOURCE, 500,
-                Define to the level of X/Open that your system supports)
-      ;;
-    *)
-      AC_DEFINE(_XOPEN_SOURCE, 600,
-                Define to the level of X/Open that your system supports)
-      ;;
-  esac
-
-  # On Tru64 Unix 4.0F, defining _XOPEN_SOURCE also requires
-  # definition of _XOPEN_SOURCE_EXTENDED and _POSIX_C_SOURCE, or else
-  # several APIs are not declared. Since this is also needed in some
-  # cases for HP-UX, we define it globally.
-  # except for Solaris 10, where it must not be defined,
-  # as it implies XPG4.2
-  case $ac_sys_system/$ac_sys_release in
-    SunOS/5.10|SunOS/5.11)
-      ;;
-    *)
-      AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1,
-      		Define to activate Unix95-and-earlier features)
-      ;;
-  esac
-
-  AC_DEFINE(_POSIX_C_SOURCE, 200112L, Define to activate features from IEEE Stds 1003.1-2001)
-
-fi
-
-#
-# SGI compilers allow the specification of the both the ABI and the
-# ISA on the command line.  Depending on the values of these switches,
-# different and often incompatable code will be generated.
-#
-# The SGI_ABI variable can be used to modify the CC and LDFLAGS and
-# thus supply support for various ABI/ISA combinations.  The MACHDEP
-# variable is also adjusted.
-#
-AC_SUBST(SGI_ABI)
-if test ! -z "$SGI_ABI"
-then
-        CC="cc $SGI_ABI"
-        LDFLAGS="$SGI_ABI $LDFLAGS"
-        MACHDEP=`echo "${MACHDEP}${SGI_ABI}" | sed 's/ *//g'`
-fi
-AC_MSG_RESULT($MACHDEP)
-
-# Record the configure-time value of MACOSX_DEPLOYMENT_TARGET,
-# it may influence the way we can build extensions, so distutils
-# needs to check it
-AC_SUBST(CONFIGURE_MACOSX_DEPLOYMENT_TARGET)
-AC_SUBST(EXPORT_MACOSX_DEPLOYMENT_TARGET)
-CONFIGURE_MACOSX_DEPLOYMENT_TARGET=
-EXPORT_MACOSX_DEPLOYMENT_TARGET='#'
-
-AC_MSG_CHECKING(machine type as reported by uname -m)
-ac_sys_machine=`uname -m`
-AC_MSG_RESULT($ac_sys_machine)
-
-# checks for alternative programs
-
-# compiler flags are generated in two sets, BASECFLAGS and OPT.  OPT is just
-# for debug/optimization stuff.  BASECFLAGS is for flags that are required
-# just to get things to compile and link.  Users are free to override OPT
-# when running configure or make.  The build should not break if they do.
-# BASECFLAGS should generally not be messed with, however.
-
-# XXX shouldn't some/most/all of this code be merged with the stuff later
-# on that fiddles with OPT and BASECFLAGS?
-AC_MSG_CHECKING(for --without-gcc)
-AC_ARG_WITH(gcc,
-            AC_HELP_STRING(--without-gcc,never use gcc),
-[
-	case $withval in
-	no)	CC=${CC:-cc}
-		without_gcc=yes;;
-	yes)	CC=gcc
-		without_gcc=no;;
-	*)	CC=$withval
-		without_gcc=$withval;;
-	esac], [
-	case $ac_sys_system in
-	AIX*)   CC=${CC:-xlc_r}
-		without_gcc=;;
-	*)	without_gcc=no;;
-	esac])
-AC_MSG_RESULT($without_gcc)
-
-# If the user switches compilers, we can't believe the cache
-if test ! -z "$ac_cv_prog_CC" -a ! -z "$CC" -a "$CC" != "$ac_cv_prog_CC"
-then
-  AC_MSG_ERROR([cached CC is different -- throw away $cache_file
-(it is also a good idea to do 'make clean' before compiling)])
-fi
-
-AC_PROG_CC
-
-AC_SUBST(CXX)
-AC_SUBST(MAINCC)
-AC_MSG_CHECKING(for --with-cxx-main=<compiler>)
-AC_ARG_WITH(cxx_main,
-            AC_HELP_STRING([--with-cxx-main=<compiler>],
-                           [compile main() and link python executable with C++ compiler]),
-[
-
-	case $withval in
-	no)	with_cxx_main=no
-		MAINCC='$(CC)';;
-	yes)	with_cxx_main=yes
-		MAINCC='$(CXX)';;
-	*)	with_cxx_main=yes
-		MAINCC=$withval
-		if test -z "$CXX"
-		then
-			CXX=$withval
-		fi;;
-	esac], [
-	with_cxx_main=no
-	MAINCC='$(CC)'
-])
-AC_MSG_RESULT($with_cxx_main)
-
-preset_cxx="$CXX"
-if test -z "$CXX"
-then
-        case "$CC" in
-        gcc)    AC_PATH_PROG(CXX, [g++], [g++], [notfound]) ;;
-        cc)     AC_PATH_PROG(CXX, [c++], [c++], [notfound]) ;;
-        esac
-	if test "$CXX" = "notfound"
-	then
-		CXX=""
-	fi
-fi
-if test -z "$CXX"
-then
-	AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
-	if test "$CXX" = "notfound"
-	then
-		CXX=""
-	fi
-fi
-if test "$preset_cxx" != "$CXX"
-then
-        AC_MSG_WARN([
-
-  By default, distutils will build C++ extension modules with "$CXX".
-  If this is not intended, then set CXX on the configure command line.
-  ])
-fi
-
-
-# checks for UNIX variants that set C preprocessor variables
-AC_AIX
-
-# Check for unsupported systems
-case $ac_sys_system/$ac_sys_release in
-atheos*|Linux*/1*)
-   echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported.
-   echo See README for details.
-   exit 1;;
-esac
-
-AC_EXEEXT
-AC_MSG_CHECKING(for --with-suffix)
-AC_ARG_WITH(suffix,
-            AC_HELP_STRING(--with-suffix=.exe, set executable suffix),
-[
-	case $withval in
-	no)	EXEEXT=;;
-	yes)	EXEEXT=.exe;;
-	*)	EXEEXT=$withval;;
-	esac])
-AC_MSG_RESULT($EXEEXT)
-
-# Test whether we're running on a non-case-sensitive system, in which
-# case we give a warning if no ext is given
-AC_SUBST(BUILDEXEEXT)
-AC_MSG_CHECKING(for case-insensitive build directory)
-if test ! -d CaseSensitiveTestDir; then
-mkdir CaseSensitiveTestDir
-fi
-
-if test -d casesensitivetestdir
-then
-    AC_MSG_RESULT(yes)
-    BUILDEXEEXT=.exe
-else
-	AC_MSG_RESULT(no)
-	BUILDEXEEXT=$EXEEXT
-fi
-rmdir CaseSensitiveTestDir
-
-case $MACHDEP in
-bsdos*)
-    case $CC in
-    gcc) CC="$CC -D_HAVE_BSDI";;
-    esac;;
-esac
-
-case $ac_sys_system in
-hp*|HP*)
-    case $CC in
-    cc|*/cc) CC="$CC -Ae";;
-    esac;;
-SunOS*)
-    # Some functions have a prototype only with that define, e.g. confstr
-    AC_DEFINE(__EXTENSIONS__, 1, [Defined on Solaris to see additional function prototypes.])
-    ;;
-esac
-
-
-AC_SUBST(LIBRARY)
-AC_MSG_CHECKING(LIBRARY)
-if test -z "$LIBRARY"
-then
-	LIBRARY='libpython$(VERSION).a'
-fi
-AC_MSG_RESULT($LIBRARY)
-
-# LDLIBRARY is the name of the library to link against (as opposed to the
-# name of the library into which to insert object files). BLDLIBRARY is also
-# the library to link against, usually. On Mac OS X frameworks, BLDLIBRARY
-# is blank as the main program is not linked directly against LDLIBRARY.
-# LDLIBRARYDIR is the path to LDLIBRARY, which is made in a subdirectory. On
-# systems without shared libraries, LDLIBRARY is the same as LIBRARY
-# (defined in the Makefiles). On Cygwin LDLIBRARY is the import library,
-# DLLLIBRARY is the shared (i.e., DLL) library.
-#
-# RUNSHARED is used to run shared python without installed libraries
-#
-# INSTSONAME is the name of the shared library that will be use to install
-# on the system - some systems like version suffix, others don't
-AC_SUBST(LDLIBRARY)
-AC_SUBST(DLLLIBRARY)
-AC_SUBST(BLDLIBRARY)
-AC_SUBST(LDLIBRARYDIR)
-AC_SUBST(INSTSONAME)
-AC_SUBST(RUNSHARED)
-LDLIBRARY="$LIBRARY"
-BLDLIBRARY='$(LDLIBRARY)'
-INSTSONAME='$(LDLIBRARY)'
-DLLLIBRARY=''
-LDLIBRARYDIR=''
-RUNSHARED=''
-
-# LINKCC is the command that links the python executable -- default is $(CC).
-# If CXX is set, and if it is needed to link a main function that was
-# compiled with CXX, LINKCC is CXX instead. Always using CXX is undesirable:
-# python might then depend on the C++ runtime
-# This is altered for AIX in order to build the export list before
-# linking.
-AC_SUBST(LINKCC)
-AC_MSG_CHECKING(LINKCC)
-if test -z "$LINKCC"
-then
-	LINKCC='$(PURIFY) $(MAINCC)'
-	case $ac_sys_system in
-	AIX*)
-	   exp_extra="\"\""
-	   if test $ac_sys_release -ge 5 -o \
-		   $ac_sys_release -eq 4 -a `uname -r` -ge 2 ; then
-	       exp_extra="."
-	   fi
-	   LINKCC="\$(srcdir)/Modules/makexp_aix Modules/python.exp $exp_extra \$(LIBRARY); $LINKCC";;
-	QNX*)
-	   # qcc must be used because the other compilers do not
-	   # support -N.
-	   LINKCC=qcc;;
-	esac
-fi
-AC_MSG_RESULT($LINKCC)
-
-# GNULD is set to "yes" if the GNU linker is used.  If this goes wrong
-# make sure we default having it set to "no": this is used by
-# distutils.unixccompiler to know if it should add --enable-new-dtags
-# to linker command lines, and failing to detect GNU ld simply results
-# in the same bahaviour as before.
-AC_SUBST(GNULD)
-AC_MSG_CHECKING(for GNU ld)
-ac_prog=ld
-if test "$GCC" = yes; then
-       ac_prog=`$CC -print-prog-name=ld`
-fi
-case `"$ac_prog" -V 2>&1 < /dev/null` in
-      *GNU*)
-          GNULD=yes;;
-      *)
-          GNULD=no;;
-esac
-AC_MSG_RESULT($GNULD)
-
-AC_MSG_CHECKING(for --enable-shared)
-AC_ARG_ENABLE(shared,
-              AC_HELP_STRING(--enable-shared, disable/enable building shared python library))
-
-if test -z "$enable_shared"
-then
-  case $ac_sys_system in
-  CYGWIN* | atheos*)
-    enable_shared="yes";;
-  *)
-    enable_shared="no";;
-  esac
-fi
-AC_MSG_RESULT($enable_shared)
-
-AC_MSG_CHECKING(for --enable-profiling)
-AC_ARG_ENABLE(profiling,
-              AC_HELP_STRING(--enable-profiling, enable C-level code profiling),
-[ac_save_cc="$CC"
- CC="$CC -pg"
- AC_TRY_RUN([int main() { return 0; }],
-   ac_enable_profiling="yes",
-   ac_enable_profiling="no",
-   ac_enable_profiling="no")
- CC="$ac_save_cc"])
-AC_MSG_RESULT($ac_enable_profiling)
-
-case "$ac_enable_profiling" in
-    "yes")
-	BASECFLAGS="-pg $BASECFLAGS"
-	LDFLAGS="-pg $LDFLAGS"
-    ;;
-esac
-
-AC_MSG_CHECKING(LDLIBRARY)
-
-# MacOSX framework builds need more magic. LDLIBRARY is the dynamic
-# library that we build, but we do not want to link against it (we
-# will find it with a -framework option). For this reason there is an
-# extra variable BLDLIBRARY against which Python and the extension
-# modules are linked, BLDLIBRARY. This is normally the same as
-# LDLIBRARY, but empty for MacOSX framework builds.
-if test "$enable_framework"
-then
-  LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-  RUNSHARED=DYLD_FRAMEWORK_PATH="`pwd`:$DYLD_FRAMEWORK_PATH"
-  BLDLIBRARY=''
-else
-  BLDLIBRARY='$(LDLIBRARY)'
-fi
-
-# Other platforms follow
-if test $enable_shared = "yes"; then
-  AC_DEFINE(Py_ENABLE_SHARED, 1, [Defined if Python is built as a shared library.])
-  case $ac_sys_system in
-    CYGWIN*)
-          LDLIBRARY='libpython$(VERSION).dll.a'
-          DLLLIBRARY='libpython$(VERSION).dll'
-          ;;
-    SunOS*)
-	  LDLIBRARY='libpython$(VERSION).so'
-	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
-	  INSTSONAME="$LDLIBRARY".$SOVERSION
-          ;;
-    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*)
-	  LDLIBRARY='libpython$(VERSION).so'
-	  BLDLIBRARY='-L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
-	  case $ac_sys_system in
-	      FreeBSD*)
-		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
-		;;
-	  esac
-	  INSTSONAME="$LDLIBRARY".$SOVERSION
-	  ;;
-    hp*|HP*)
-	  case `uname -m` in
-		ia64)
-			LDLIBRARY='libpython$(VERSION).so'
-			;;
-		*)
-			LDLIBRARY='libpython$(VERSION).sl'
-			;;
-	  esac
-	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
-	  ;;
-    OSF*)
-	  LDLIBRARY='libpython$(VERSION).so'
-	  BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
-	  ;;
-    atheos*)
-	  LDLIBRARY='libpython$(VERSION).so'
-	  BLDLIBRARY='-L. -lpython$(VERSION)'
-	  RUNSHARED=DLL_PATH=`pwd`:${DLL_PATH:-/atheos/sys/libs:/atheos/autolnk/lib}
-	  ;;
-    Darwin*)
-    	LDLIBRARY='libpython$(VERSION).dylib'
-	BLDLIBRARY='-L. -lpython$(VERSION)'
-	RUNSHARED='DYLD_LIBRARY_PATH=`pwd`:${DYLD_LIBRARY_PATH}'
-	;;
-    AIX*)
-	LDLIBRARY='libpython$(VERSION).so'
-	RUNSHARED=LIBPATH=`pwd`:${LIBPATH}
-	;;
-
-  esac
-else # shared is disabled
-  case $ac_sys_system in
-    CYGWIN*)
-          BLDLIBRARY='$(LIBRARY)'
-          LDLIBRARY='libpython$(VERSION).dll.a'
-          ;;
-  esac
-fi
-
-AC_MSG_RESULT($LDLIBRARY)
-
-AC_PROG_RANLIB
-AC_SUBST(AR)
-AC_CHECK_PROGS(AR, ar aal, ar)
-
-# tweak ARFLAGS only if the user didn't set it on the command line
-AC_SUBST(ARFLAGS)
-if test -z "$ARFLAGS"
-then
-        ARFLAGS="rc"
-fi
-
-AC_SUBST(SVNVERSION)
-AC_CHECK_PROG(SVNVERSION, svnversion, found, not-found)
-if test $SVNVERSION = found
-then
-	SVNVERSION="svnversion \$(srcdir)"
-else
-	SVNVERSION="echo Unversioned directory"
-fi
-
-AC_SUBST(HGVERSION)
-AC_SUBST(HGTAG)
-AC_SUBST(HGBRANCH)
-AC_CHECK_PROG(HAS_HG, hg, found, not-found)
-if test $HAS_HG = found
-then
-    HGVERSION="hg id -i \$(srcdir)"
-    HGTAG="hg id -t \$(srcdir)"
-    HGBRANCH="hg id -b \$(srcdir)"
-else
-    HGVERSION=""
-    HGTAG=""
-    HGBRANCH=""
-fi
-
-case $MACHDEP in
-bsdos*|hp*|HP*)
-	# install -d does not work on BSDI or HP-UX
-	if test -z "$INSTALL"
-	then
-		INSTALL="${srcdir}/install-sh -c"
-	fi
-esac
-AC_PROG_INSTALL
-
-# Not every filesystem supports hard links
-AC_SUBST(LN)
-if test -z "$LN" ; then
-	case $ac_sys_system in
-		CYGWIN*) LN="ln -s";;
-		atheos*) LN="ln -s";;
-		*) LN=ln;;
-	esac
-fi
-
-# Check for --with-pydebug
-AC_MSG_CHECKING(for --with-pydebug)
-AC_ARG_WITH(pydebug,
-            AC_HELP_STRING(--with-pydebug, build with Py_DEBUG defined),
-[
-if test "$withval" != no
-then
-  AC_DEFINE(Py_DEBUG, 1,
-  [Define if you want to build an interpreter with many run-time checks.])
-  AC_MSG_RESULT(yes);
-  Py_DEBUG='true'
-else AC_MSG_RESULT(no); Py_DEBUG='false'
-fi],
-[AC_MSG_RESULT(no)])
-
-# XXX Shouldn't the code above that fiddles with BASECFLAGS and OPT be
-# merged with this chunk of code?
-
-# Optimizer/debugger flags
-# ------------------------
-# (The following bit of code is complicated enough - please keep things
-# indented properly.  Just pretend you're editing Python code. ;-)
-
-# There are two parallel sets of case statements below, one that checks to
-# see if OPT was set and one that does BASECFLAGS setting based upon
-# compiler and platform.  BASECFLAGS tweaks need to be made even if the
-# user set OPT.
-
-# tweak OPT based on compiler and platform, only if the user didn't set
-# it on the command line
-AC_SUBST(OPT)
-if test "${OPT-unset}" = "unset"
-then
-    case $GCC in
-    yes)
-        if test "$CC" != 'g++' ; then
-	    STRICT_PROTO="-Wstrict-prototypes"
-	fi
-        # For gcc 4.x we need to use -fwrapv so lets check if its supported
-        if "$CC" -v --help 2>/dev/null |grep -- -fwrapv > /dev/null; then
-           WRAP="-fwrapv"
-        fi
-	case $ac_cv_prog_cc_g in
-	yes)
-	    if test "$Py_DEBUG" = 'true' ; then
-		# Optimization messes up debuggers, so turn it off for
-		# debug builds.
-		OPT="-g -Wall $STRICT_PROTO"
-	    else
-		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO"
-	    fi
-	    ;;
-	*)
-	    OPT="-O3 -Wall $STRICT_PROTO"
-	    ;;
-	esac
-	case $ac_sys_system in
-	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
-	    ;;
-        esac
-	;;
-
-    *)
-	OPT="-O"
-	;;
-    esac
-fi
-
-AC_SUBST(BASECFLAGS)
-
-# The -arch flags for universal builds on OSX
-UNIVERSAL_ARCH_FLAGS=
-AC_SUBST(UNIVERSAL_ARCH_FLAGS)
-
-# tweak BASECFLAGS based on compiler and platform
-case $GCC in
-yes)
-    # Python doesn't violate C99 aliasing rules, but older versions of
-    # GCC produce warnings for legal Python code.  Enable
-    # -fno-strict-aliasing on versions of GCC that support but produce
-    # warnings.  See Issue3326
-    AC_MSG_CHECKING(whether $CC accepts and needs -fno-strict-aliasing)
-     ac_save_cc="$CC"
-     CC="$CC -fno-strict-aliasing"
-     save_CFLAGS="$CFLAGS"
-     AC_CACHE_VAL(ac_cv_no_strict_aliasing,
-       AC_COMPILE_IFELSE(
-         [
-	   AC_LANG_PROGRAM([[]], [[]])
-	 ],[
-	   CC="$ac_save_cc -fstrict-aliasing"
-           CFLAGS="$CFLAGS -Werror -Wstrict-aliasing"
-           AC_COMPILE_IFELSE(
-	     [
-	       AC_LANG_PROGRAM([[void f(int **x) {}]],
-	         [[double *x; f((int **) &x);]])
-	     ],[
-	       ac_cv_no_strict_aliasing=no
-	     ],[
-               ac_cv_no_strict_aliasing=yes
-	     ])
-	 ],[
-	   ac_cv_no_strict_aliasing=no
-	 ]))
-     CFLAGS="$save_CFLAGS"
-     CC="$ac_save_cc"
-    AC_MSG_RESULT($ac_cv_no_strict_aliasing)
-    if test $ac_cv_no_strict_aliasing = yes
-    then
-      BASECFLAGS="$BASECFLAGS -fno-strict-aliasing"
-    fi
-
-    # if using gcc on alpha, use -mieee to get (near) full IEEE 754
-    # support.  Without this, treatment of subnormals doesn't follow
-    # the standard.
-    case $ac_sys_machine in
-         alpha*)
-                BASECFLAGS="$BASECFLAGS -mieee"
-                ;;
-    esac
-
-    case $ac_sys_system in
-	SCO_SV*)
-	    BASECFLAGS="$BASECFLAGS -m486 -DSCO5"
-	    ;;
-	# is there any other compiler on Darwin besides gcc?
-	Darwin*)
-	    # -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd
-	    # used to be here, but non-Apple gcc doesn't accept them.
-            if test "${CC}" = gcc
-	    then
-		AC_MSG_CHECKING(which compiler should be used)
-		case "${UNIVERSALSDK}" in
-		*/MacOSX10.4u.sdk)
-			# Build using 10.4 SDK, force usage of gcc when the
-			# compiler is gcc, otherwise the user will get very
-			# confusing error messages when building on OSX 10.6
-			CC=gcc-4.0
-			CPP=cpp-4.0
-			;;
-		esac
-		AC_MSG_RESULT($CC)
-	    fi
-
-
-	    if test "${enable_universalsdk}"; then
-		UNIVERSAL_ARCH_FLAGS=""
-	        if test "$UNIVERSAL_ARCHS" = "32-bit" ; then
-		   ARCH_RUN_32BIT=""
-		   UNIVERSAL_ARCH_FLAGS="-arch ppc -arch i386"
-
-	         elif test "$UNIVERSAL_ARCHS" = "64-bit" ; then
-		   ARCH_RUN_32BIT="true"
-		   UNIVERSAL_ARCH_FLAGS="-arch ppc64 -arch x86_64"
-
-	         elif test "$UNIVERSAL_ARCHS" = "all" ; then
-		   ARCH_RUN_32BIT="/usr/bin/arch -i386 -ppc"
-		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch ppc64 -arch x86_64"
-		   LIPO_32BIT_FLAGS="-extract i386 -extract ppc7400"
-		   LIPO_64BIT_FLAGS="-extract x86_64 -extract ppc64"
-
-	         elif test "$UNIVERSAL_ARCHS" = "intel" ; then
-		   ARCH_RUN_32BIT="/usr/bin/arch -i386"
-		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch x86_64"
-		   LIPO_32BIT_FLAGS="-extract i386"
-		   LIPO_64BIT_FLAGS="-extract x86_64"
-
-	         elif test "$UNIVERSAL_ARCHS" = "3-way" ; then
-		   ARCH_RUN_32BIT="/usr/bin/arch -i386 -ppc"
-		   UNIVERSAL_ARCH_FLAGS="-arch i386 -arch ppc -arch x86_64"
-		   LIPO_32BIT_FLAGS="-extract i386 -extract ppc7400"
-		   LIPO_64BIT_FLAGS="-extract x86_64"
-
-		 else
-	           AC_MSG_ERROR([proper usage is --with-universal-arch=32-bit|64-bit|all|intel|3-way])
-
-		 fi
-
-
-		CFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${CFLAGS}"
-		if test "${UNIVERSALSDK}" != "/"
-		then
-			CFLAGS="-isysroot ${UNIVERSALSDK} ${CFLAGS}"
-			LDFLAGS="-isysroot ${UNIVERSALSDK} ${LDFLAGS}"
-			CPPFLAGSFLAGS="-isysroot ${UNIVERSALSDK} ${CPPFLAGS}"
-		fi
-	    fi
-
-	    # Calculate the right deployment target for this build.
-	    #
-	    cur_target=`sw_vers -productVersion | sed 's/\(10\.[[0-9]]*\).*/\1/'`
-	    if test ${cur_target} '>' 10.2; then
-		    cur_target=10.3
-		    if test ${enable_universalsdk}; then
-			    if test "${UNIVERSAL_ARCHS}" = "all"; then
-				    # Ensure that the default platform for a
-				    # 4-way universal build is OSX 10.5,
-				    # that's the first OS release where
-				    # 4-way builds make sense.
-				    cur_target='10.5'
-
-			    elif test "${UNIVERSAL_ARCHS}" = "3-way"; then
-				    cur_target='10.5'
-
-			    elif test "${UNIVERSAL_ARCHS}" = "intel"; then
-				    cur_target='10.5'
-
-			    elif test "${UNIVERSAL_ARCHS}" = "64-bit"; then
-				    cur_target='10.5'
-			    fi
-		    else
-			    if test `/usr/bin/arch` = "i386"; then
-				    # On Intel macs default to a deployment
-				    # target of 10.4, that's the first OSX
-				    # release with Intel support.
-				    cur_target="10.4"
-			    fi
-		    fi
-	    fi
-	    CONFIGURE_MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET-${cur_target}}
-
-	    # Make sure that MACOSX_DEPLOYMENT_TARGET is set in the
-	    # environment with a value that is the same as what we'll use
-	    # in the Makefile to ensure that we'll get the same compiler
-	    # environment during configure and build time.
-	    MACOSX_DEPLOYMENT_TARGET="$CONFIGURE_MACOSX_DEPLOYMENT_TARGET"
-	    export MACOSX_DEPLOYMENT_TARGET
-	    EXPORT_MACOSX_DEPLOYMENT_TARGET=''
-
-	    ;;
-	OSF*)
-	    BASECFLAGS="$BASECFLAGS -mieee"
-	    ;;
-    esac
-    ;;
-
-*)
-    case $ac_sys_system in
-    OpenUNIX*|UnixWare*)
-	BASECFLAGS="$BASECFLAGS -K pentium,host,inline,loop_unroll,alloca "
-	;;
-    OSF*)
-	BASECFLAGS="$BASECFLAGS -ieee -std"
-    	;;
-    SCO_SV*)
-	BASECFLAGS="$BASECFLAGS -belf -Ki486 -DSCO5"
-	;;
-    esac
-    ;;
-esac
-
-if test "$Py_DEBUG" = 'true'; then
-  :
-else
-  OPT="-DNDEBUG $OPT"
-fi
-
-if test "$ac_arch_flags"
-then
-	BASECFLAGS="$BASECFLAGS $ac_arch_flags"
-fi
-
-# disable check for icc since it seems to pass, but generates a warning
-if test "$CC" = icc
-then
-  ac_cv_opt_olimit_ok=no
-fi
-
-AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)
-AC_CACHE_VAL(ac_cv_opt_olimit_ok,
-[ac_save_cc="$CC"
-CC="$CC -OPT:Olimit=0"
-AC_TRY_RUN([int main() { return 0; }],
-  ac_cv_opt_olimit_ok=yes,
-  ac_cv_opt_olimit_ok=no,
-  ac_cv_opt_olimit_ok=no)
-CC="$ac_save_cc"])
-AC_MSG_RESULT($ac_cv_opt_olimit_ok)
-if test $ac_cv_opt_olimit_ok = yes; then
-    case $ac_sys_system in
-	# XXX is this branch needed? On MacOSX 10.2.2 the result of the
-	# olimit_ok test is "no".  Is it "yes" in some other Darwin-esque
-	# environment?
-        Darwin*)
-	    ;;
-        *)
-	    BASECFLAGS="$BASECFLAGS -OPT:Olimit=0"
-	    ;;
-    esac
-else
-  AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)
-  AC_CACHE_VAL(ac_cv_olimit_ok,
-  [ac_save_cc="$CC"
-  CC="$CC -Olimit 1500"
-  AC_TRY_RUN([int main() { return 0; }],
-    ac_cv_olimit_ok=yes,
-    ac_cv_olimit_ok=no,
-    ac_cv_olimit_ok=no)
-  CC="$ac_save_cc"])
-  AC_MSG_RESULT($ac_cv_olimit_ok)
-  if test $ac_cv_olimit_ok = yes; then
-    BASECFLAGS="$BASECFLAGS -Olimit 1500"
-  fi
-fi
-
-# Check whether GCC supports PyArg_ParseTuple format
-if test "$GCC" = "yes"
-then
-  AC_MSG_CHECKING(whether gcc supports ParseTuple __format__)
-  save_CFLAGS=$CFLAGS
-  CFLAGS="$CFLAGS -Werror"
-  AC_TRY_COMPILE([
-    void f(char*,...)__attribute((format(PyArg_ParseTuple, 1, 2)));
-  ],,
-  AC_DEFINE(HAVE_ATTRIBUTE_FORMAT_PARSETUPLE, 1, [Define if GCC supports __attribute__((format(PyArg_ParseTuple, 2, 3)))])
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-  )
-  CFLAGS=$save_CFLAGS
-fi
-
-# On some compilers, pthreads are available without further options
-# (e.g. MacOS X). On some of these systems, the compiler will not
-# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
-# So we have to see first whether pthreads are available without
-# options before we can check whether -Kpthread improves anything.
-AC_MSG_CHECKING(whether pthreads are available without options)
-AC_CACHE_VAL(ac_cv_pthread_is_default,
-[AC_TRY_RUN([
-#include <pthread.h>
-
-void* routine(void* p){return NULL;}
-
-int main(){
-  pthread_t p;
-  if(pthread_create(&p,NULL,routine,NULL)!=0)
-    return 1;
-  (void)pthread_detach(p);
-  return 0;
-}
-],
-[
-  ac_cv_pthread_is_default=yes
-  ac_cv_kthread=no
-  ac_cv_pthread=no
-],
-  ac_cv_pthread_is_default=no,
-  ac_cv_pthread_is_default=no)
-])
-AC_MSG_RESULT($ac_cv_pthread_is_default)
-
-
-if test $ac_cv_pthread_is_default = yes
-then
-  ac_cv_kpthread=no
-else
-# -Kpthread, if available, provides the right #defines
-# and linker options to make pthread_create available
-# Some compilers won't report that they do not support -Kpthread,
-# so we need to run a program to see whether it really made the
-# function available.
-AC_MSG_CHECKING(whether $CC accepts -Kpthread)
-AC_CACHE_VAL(ac_cv_kpthread,
-[ac_save_cc="$CC"
-CC="$CC -Kpthread"
-AC_TRY_RUN([
-#include <pthread.h>
-
-void* routine(void* p){return NULL;}
-
-int main(){
-  pthread_t p;
-  if(pthread_create(&p,NULL,routine,NULL)!=0)
-    return 1;
-  (void)pthread_detach(p);
-  return 0;
-}
-],
-  ac_cv_kpthread=yes,
-  ac_cv_kpthread=no,
-  ac_cv_kpthread=no)
-CC="$ac_save_cc"])
-AC_MSG_RESULT($ac_cv_kpthread)
-fi
-
-if test $ac_cv_kpthread = no -a $ac_cv_pthread_is_default = no
-then
-# -Kthread, if available, provides the right #defines
-# and linker options to make pthread_create available
-# Some compilers won't report that they do not support -Kthread,
-# so we need to run a program to see whether it really made the
-# function available.
-AC_MSG_CHECKING(whether $CC accepts -Kthread)
-AC_CACHE_VAL(ac_cv_kthread,
-[ac_save_cc="$CC"
-CC="$CC -Kthread"
-AC_TRY_RUN([
-#include <pthread.h>
-
-void* routine(void* p){return NULL;}
-
-int main(){
-  pthread_t p;
-  if(pthread_create(&p,NULL,routine,NULL)!=0)
-    return 1;
-  (void)pthread_detach(p);
-  return 0;
-}
-],
-  ac_cv_kthread=yes,
-  ac_cv_kthread=no,
-  ac_cv_kthread=no)
-CC="$ac_save_cc"])
-AC_MSG_RESULT($ac_cv_kthread)
-fi
-
-if test $ac_cv_kthread = no -a $ac_cv_pthread_is_default = no
-then
-# -pthread, if available, provides the right #defines
-# and linker options to make pthread_create available
-# Some compilers won't report that they do not support -pthread,
-# so we need to run a program to see whether it really made the
-# function available.
-AC_MSG_CHECKING(whether $CC accepts -pthread)
-AC_CACHE_VAL(ac_cv_thread,
-[ac_save_cc="$CC"
-CC="$CC -pthread"
-AC_TRY_RUN([
-#include <pthread.h>
-
-void* routine(void* p){return NULL;}
-
-int main(){
-  pthread_t p;
-  if(pthread_create(&p,NULL,routine,NULL)!=0)
-    return 1;
-  (void)pthread_detach(p);
-  return 0;
-}
-],
-  ac_cv_pthread=yes,
-  ac_cv_pthread=no,
-  ac_cv_pthread=no)
-CC="$ac_save_cc"])
-AC_MSG_RESULT($ac_cv_pthread)
-fi
-
-# If we have set a CC compiler flag for thread support then
-# check if it works for CXX, too.
-ac_cv_cxx_thread=no
-if test ! -z "$CXX"
-then
-AC_MSG_CHECKING(whether $CXX also accepts flags for thread support)
-ac_save_cxx="$CXX"
-
-if test "$ac_cv_kpthread" = "yes"
-then
-  CXX="$CXX -Kpthread"
-  ac_cv_cxx_thread=yes
-elif test "$ac_cv_kthread" = "yes"
-then
-  CXX="$CXX -Kthread"
-  ac_cv_cxx_thread=yes
-elif test "$ac_cv_pthread" = "yes"
-then
-  CXX="$CXX -pthread"
-  ac_cv_cxx_thread=yes
-fi
-
-if test $ac_cv_cxx_thread = yes
-then
-  echo 'void foo();int main(){foo();}void foo(){}' > conftest.$ac_ext
-  $CXX -c conftest.$ac_ext 2>&5
-  if $CXX -o conftest$ac_exeext conftest.$ac_objext 2>&5 \
-     && test -s conftest$ac_exeext && ./conftest$ac_exeext
-  then
-    ac_cv_cxx_thread=yes
-  else
-    ac_cv_cxx_thread=no
-  fi
-  rm -fr conftest*
-fi
-AC_MSG_RESULT($ac_cv_cxx_thread)
-fi
-CXX="$ac_save_cxx"
-
-dnl # check for ANSI or K&R ("traditional") preprocessor
-dnl AC_MSG_CHECKING(for C preprocessor type)
-dnl AC_TRY_COMPILE([
-dnl #define spam(name, doc) {#name, &name, #name "() -- " doc}
-dnl int foo;
-dnl struct {char *name; int *addr; char *doc;} desc = spam(foo, "something");
-dnl ], [;], cpp_type=ansi, AC_DEFINE(HAVE_OLD_CPP) cpp_type=traditional)
-dnl AC_MSG_RESULT($cpp_type)
-
-# checks for header files
-AC_HEADER_STDC
-AC_CHECK_HEADERS(asm/types.h conio.h curses.h direct.h dlfcn.h errno.h \
-fcntl.h grp.h \
-ieeefp.h io.h langinfo.h libintl.h ncurses.h poll.h process.h pthread.h \
-shadow.h signal.h stdint.h stropts.h termios.h thread.h \
-unistd.h utime.h \
-sys/audioio.h sys/bsdtty.h sys/epoll.h sys/event.h sys/file.h sys/loadavg.h \
-sys/lock.h sys/mkdev.h sys/modem.h \
-sys/param.h sys/poll.h sys/select.h sys/socket.h sys/statvfs.h sys/stat.h \
-sys/termio.h sys/time.h \
-sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
-sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
-bluetooth/bluetooth.h linux/tipc.h)
-AC_HEADER_DIRENT
-AC_HEADER_MAJOR
-
-# On Solaris, term.h requires curses.h
-AC_CHECK_HEADERS(term.h,,,[
-#ifdef HAVE_CURSES_H
-#include <curses.h>
-#endif
-])
-
-# On Linux, netlink.h requires asm/types.h
-AC_CHECK_HEADERS(linux/netlink.h,,,[
-#ifdef HAVE_ASM_TYPES_H
-#include <asm/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-])
-
-# checks for typedefs
-was_it_defined=no
-AC_MSG_CHECKING(for clock_t in time.h)
-AC_EGREP_HEADER(clock_t, time.h, was_it_defined=yes, [
-    AC_DEFINE(clock_t, long, [Define to 'long' if <time.h> doesn't define.])
-])
-AC_MSG_RESULT($was_it_defined)
-
-# Check whether using makedev requires defining _OSF_SOURCE
-AC_MSG_CHECKING(for makedev)
-AC_TRY_LINK([
-#if defined(MAJOR_IN_MKDEV)
-#include <sys/mkdev.h>
-#elif defined(MAJOR_IN_SYSMACROS)
-#include <sys/sysmacros.h>
-#else
-#include <sys/types.h>
-#endif ],
-	    [ makedev(0, 0) ],
-	    ac_cv_has_makedev=yes,
-	    ac_cv_has_makedev=no)
-if test "$ac_cv_has_makedev" = "no"; then
-    # we didn't link, try if _OSF_SOURCE will allow us to link
-    AC_TRY_LINK([
-#define _OSF_SOURCE 1
-#include <sys/types.h>
-    ],
-    [ makedev(0, 0) ],
-    ac_cv_has_makedev=yes,
-    ac_cv_has_makedev=no)
-    if test "$ac_cv_has_makedev" = "yes"; then
-        AC_DEFINE(_OSF_SOURCE, 1, [Define _OSF_SOURCE to get the makedev macro.])
-    fi
-fi
-AC_MSG_RESULT($ac_cv_has_makedev)
-if test "$ac_cv_has_makedev" = "yes"; then
-    AC_DEFINE(HAVE_MAKEDEV, 1, [Define this if you have the makedev macro.])
-fi
-
-# Enabling LFS on Solaris (2.6 to 9) with gcc 2.95 triggers a bug in
-# the system headers: If _XOPEN_SOURCE and _LARGEFILE_SOURCE are
-# defined, but the compiler does not support pragma redefine_extname,
-# and _LARGEFILE64_SOURCE is not defined, the headers refer to 64-bit
-# structures (such as rlimit64) without declaring them. As a
-# work-around, disable LFS on such configurations
-
-use_lfs=yes
-AC_MSG_CHECKING(Solaris LFS bug)
-AC_TRY_COMPILE([
-#define _LARGEFILE_SOURCE 1
-#define _FILE_OFFSET_BITS 64
-#include <sys/resource.h>
-],struct rlimit foo;,sol_lfs_bug=no,sol_lfs_bug=yes)
-AC_MSG_RESULT($sol_lfs_bug)
-if test "$sol_lfs_bug" = "yes"; then
-  use_lfs=no
-fi
-
-if test "$use_lfs" = "yes"; then
-# Two defines needed to enable largefile support on various platforms
-# These may affect some typedefs
-case $ac_sys_system/$ac_sys_release in
-AIX*)
-    AC_DEFINE(_LARGE_FILES, 1,
-    [This must be defined on AIX systems to enable large file support.])
-    ;;
-esac
-AC_DEFINE(_LARGEFILE_SOURCE, 1,
-[This must be defined on some systems to enable large file support.])
-AC_DEFINE(_FILE_OFFSET_BITS, 64,
-[This must be set to 64 on some systems to enable large file support.])
-fi
-
-# Add some code to confdefs.h so that the test for off_t works on SCO
-cat >> confdefs.h <<\EOF
-#if defined(SCO_DS)
-#undef _OFF_T
-#endif
-EOF
-
-# Type availability checks
-AC_TYPE_MODE_T
-AC_TYPE_OFF_T
-AC_TYPE_PID_T
-AC_TYPE_SIGNAL
-AC_TYPE_SIZE_T
-AC_TYPE_UID_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT64_T
-AC_TYPE_INT32_T
-AC_TYPE_INT64_T
-AC_CHECK_TYPE(ssize_t,
-  AC_DEFINE(HAVE_SSIZE_T, 1, Define if your compiler provides ssize_t),,)
-
-# Sizes of various common basic types
-# ANSI C requires sizeof(char) == 1, so no need to check it
-AC_CHECK_SIZEOF(int, 4)
-AC_CHECK_SIZEOF(long, 4)
-AC_CHECK_SIZEOF(void *, 4)
-AC_CHECK_SIZEOF(short, 2)
-AC_CHECK_SIZEOF(float, 4)
-AC_CHECK_SIZEOF(double, 8)
-AC_CHECK_SIZEOF(fpos_t, 4)
-AC_CHECK_SIZEOF(size_t, 4)
-AC_CHECK_SIZEOF(pid_t, 4)
-
-AC_MSG_CHECKING(for long long support)
-have_long_long=no
-AC_TRY_COMPILE([], [long long x; x = (long long)0;], [
-  AC_DEFINE(HAVE_LONG_LONG, 1, [Define this if you have the type long long.])
-  have_long_long=yes
-])
-AC_MSG_RESULT($have_long_long)
-if test "$have_long_long" = yes ; then
-AC_CHECK_SIZEOF(long long, 8)
-fi
-
-AC_MSG_CHECKING(for long double support)
-have_long_double=no
-AC_TRY_COMPILE([], [long double x; x = (long double)0;], [
-  AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define this if you have the type long double.])
-  have_long_double=yes
-])
-AC_MSG_RESULT($have_long_double)
-if test "$have_long_double" = yes ; then
-AC_CHECK_SIZEOF(long double, 16)
-fi
-
-
-AC_MSG_CHECKING(for _Bool support)
-have_c99_bool=no
-AC_TRY_COMPILE([], [_Bool x; x = (_Bool)0;], [
-  AC_DEFINE(HAVE_C99_BOOL, 1, [Define this if you have the type _Bool.])
-  have_c99_bool=yes
-])
-AC_MSG_RESULT($have_c99_bool)
-if test "$have_c99_bool" = yes ; then
-AC_CHECK_SIZEOF(_Bool, 1)
-fi
-
-AC_CHECK_TYPES(uintptr_t,
-   [AC_CHECK_SIZEOF(uintptr_t, 4)],
-   [], [#ifdef HAVE_STDINT_H
-        #include <stdint.h>
-        #endif
-        #ifdef HAVE_INTTYPES_H
-        #include <inttypes.h>
-        #endif])
-
-
-# Hmph. AC_CHECK_SIZEOF() doesn't include <sys/types.h>.
-AC_MSG_CHECKING(size of off_t)
-AC_CACHE_VAL(ac_cv_sizeof_off_t,
-[AC_TRY_RUN([#include <stdio.h>
-#include <sys/types.h>
-main()
-{
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(off_t));
-  exit(0);
-}],
-ac_cv_sizeof_off_t=`cat conftestval`,
-ac_cv_sizeof_off_t=0,
-ac_cv_sizeof_off_t=4)
-])
-AC_MSG_RESULT($ac_cv_sizeof_off_t)
-AC_DEFINE_UNQUOTED(SIZEOF_OFF_T, $ac_cv_sizeof_off_t,
-[The number of bytes in an off_t.])
-
-AC_MSG_CHECKING(whether to enable large file support)
-if test "$have_long_long" = yes
-then
-if test "$ac_cv_sizeof_off_t" -gt "$ac_cv_sizeof_long" -a \
-	"$ac_cv_sizeof_long_long" -ge "$ac_cv_sizeof_off_t"; then
-  AC_DEFINE(HAVE_LARGEFILE_SUPPORT, 1,
-  [Defined to enable large file support when an off_t is bigger than a long
-   and long long is available and at least as big as an off_t. You may need
-   to add some flags for configuration and compilation to enable this mode.
-   (For Solaris and Linux, the necessary defines are already defined.)])
-  AC_MSG_RESULT(yes)
-else
-  AC_MSG_RESULT(no)
-fi
-else
-  AC_MSG_RESULT(no)
-fi
-
-# AC_CHECK_SIZEOF() doesn't include <time.h>.
-AC_MSG_CHECKING(size of time_t)
-AC_CACHE_VAL(ac_cv_sizeof_time_t,
-[AC_TRY_RUN([#include <stdio.h>
-#include <time.h>
-main()
-{
-  FILE *f=fopen("conftestval", "w");
-  if (!f) exit(1);
-  fprintf(f, "%d\n", sizeof(time_t));
-  exit(0);
-}],
-ac_cv_sizeof_time_t=`cat conftestval`,
-ac_cv_sizeof_time_t=0,
-ac_cv_sizeof_time_t=4)
-])
-AC_MSG_RESULT($ac_cv_sizeof_time_t)
-AC_DEFINE_UNQUOTED(SIZEOF_TIME_T, $ac_cv_sizeof_time_t,
-[The number of bytes in a time_t.])
-
-
-# if have pthread_t then define SIZEOF_PTHREAD_T
-ac_save_cc="$CC"
-if test "$ac_cv_kpthread" = "yes"
-then CC="$CC -Kpthread"
-elif test "$ac_cv_kthread" = "yes"
-then CC="$CC -Kthread"
-elif test "$ac_cv_pthread" = "yes"
-then CC="$CC -pthread"
-fi
-AC_MSG_CHECKING(for pthread_t)
-have_pthread_t=no
-AC_TRY_COMPILE([#include <pthread.h>], [pthread_t x; x = *(pthread_t*)0;], have_pthread_t=yes)
-AC_MSG_RESULT($have_pthread_t)
-if test "$have_pthread_t" = yes ; then
-  # AC_CHECK_SIZEOF() doesn't include <pthread.h>.
-  AC_MSG_CHECKING(size of pthread_t)
-  AC_CACHE_VAL(ac_cv_sizeof_pthread_t,
-  [AC_TRY_RUN([#include <stdio.h>
-#include <pthread.h>
-  main()
-  {
-    FILE *f=fopen("conftestval", "w");
-    if (!f) exit(1);
-    fprintf(f, "%d\n", sizeof(pthread_t));
-    exit(0);
-  }],
-  ac_cv_sizeof_pthread_t=`cat conftestval`,
-  ac_cv_sizeof_pthread_t=0,
-  ac_cv_sizeof_pthread_t=4)
-  ])
-  AC_MSG_RESULT($ac_cv_sizeof_pthread_t)
-  AC_DEFINE_UNQUOTED(SIZEOF_PTHREAD_T, $ac_cv_sizeof_pthread_t,
-   [The number of bytes in a pthread_t.])
-fi
-CC="$ac_save_cc"
-
-
-
-AC_SUBST(OTHER_LIBTOOL_OPT)
-case $ac_sys_system/$ac_sys_release in
-  Darwin/@<:@01567@:>@\..*)
-    OTHER_LIBTOOL_OPT="-prebind -seg1addr 0x10000000"
-    ;;
-  Darwin/*)
-    OTHER_LIBTOOL_OPT=""
-    ;;
-esac
-
-
-ARCH_RUN_32BIT=""
-AC_SUBST(LIBTOOL_CRUFT)
-case $ac_sys_system/$ac_sys_release in
-  Darwin/@<:@01567@:>@\..*)
-    LIBTOOL_CRUFT="-framework System -lcc_dynamic"
-    if test "${enable_universalsdk}"; then
-	    :
-    else
-        LIBTOOL_CRUFT="${LIBTOOL_CRUFT} -arch_only `/usr/bin/arch`"
-    fi
-    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
-  Darwin/*)
-    gcc_version=`gcc -dumpversion`
-    if test ${gcc_version} '<' 4.0
-        then
-            LIBTOOL_CRUFT="-lcc_dynamic"
-        else
-            LIBTOOL_CRUFT=""
-    fi
-    AC_TRY_RUN([
-    #include <unistd.h>
-    int main(int argc, char*argv[])
-    {
-      if (sizeof(long) == 4) {
-    	  return 0;
-      } else {
-      	  return 1;
-      }
-    }
-    ], ac_osx_32bit=yes,
-       ac_osx_32bit=no,
-       ac_osx_32bit=yes)
-
-    if test "${ac_osx_32bit}" = "yes"; then
-    	case `/usr/bin/arch` in
-    	i386)
-    		MACOSX_DEFAULT_ARCH="i386"
-    		;;
-    	ppc)
-    		MACOSX_DEFAULT_ARCH="ppc"
-    		;;
-    	*)
-    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
-    		;;
-    	esac
-    else
-    	case `/usr/bin/arch` in
-    	i386)
-    		MACOSX_DEFAULT_ARCH="x86_64"
-    		;;
-    	ppc)
-    		MACOSX_DEFAULT_ARCH="ppc64"
-    		;;
-    	*)
-    		AC_MSG_ERROR([Unexpected output of 'arch' on OSX])
-    		;;
-    	esac
-
-	#ARCH_RUN_32BIT="true"
-    fi
-
-    LIBTOOL_CRUFT=$LIBTOOL_CRUFT" -lSystem -lSystemStubs -arch_only ${MACOSX_DEFAULT_ARCH}"
-    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -install_name $(PYTHONFRAMEWORKINSTALLDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-    LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
-esac
-
-AC_MSG_CHECKING(for --enable-framework)
-if test "$enable_framework"
-then
-	BASECFLAGS="$BASECFLAGS -fno-common -dynamic"
-	# -F. is needed to allow linking to the framework while
-	# in the build location.
-	AC_DEFINE(WITH_NEXT_FRAMEWORK, 1,
-         [Define if you want to produce an OpenStep/Rhapsody framework
-         (shared library plus accessory files).])
-	AC_MSG_RESULT(yes)
-	if test $enable_shared = "yes"
-	then
-		AC_MSG_ERROR([Specifying both --enable-shared and --enable-framework is not supported, use only --enable-framework instead])
-	fi
-else
-	AC_MSG_RESULT(no)
-fi
-
-AC_MSG_CHECKING(for dyld)
-case $ac_sys_system/$ac_sys_release in
-  Darwin/*)
-  	AC_DEFINE(WITH_DYLD, 1,
-        [Define if you want to use the new-style (Openstep, Rhapsody, MacOS)
-         dynamic linker (dyld) instead of the old-style (NextStep) dynamic
-         linker (rld). Dyld is necessary to support frameworks.])
-  	AC_MSG_RESULT(always on for Darwin)
-  	;;
-  *)
-	AC_MSG_RESULT(no)
-	;;
-esac
-
-# Set info about shared libraries.
-AC_SUBST(SO)
-AC_SUBST(LDSHARED)
-AC_SUBST(BLDSHARED)
-AC_SUBST(CCSHARED)
-AC_SUBST(LINKFORSHARED)
-# SO is the extension of shared libraries `(including the dot!)
-# -- usually .so, .sl on HP-UX, .dll on Cygwin
-AC_MSG_CHECKING(SO)
-if test -z "$SO"
-then
-	case $ac_sys_system in
-	hp*|HP*)
-		case `uname -m` in
-			ia64) SO=.so;;
-	  		*)    SO=.sl;;
-		esac
-		;;
-	CYGWIN*)   SO=.dll;;
-	*)	   SO=.so;;
-	esac
-else
-	# this might also be a termcap variable, see #610332
-        echo
-        echo '====================================================================='
-        echo '+                                                                   +'
-	echo '+ WARNING: You have set SO in your environment.                     +'
-        echo '+ Do you really mean to change the extension for shared libraries?  +'
-        echo '+ Continuing in 10 seconds to let you to ponder.                    +'
-        echo '+                                                                   +'
-        echo '====================================================================='
-	sleep 10
-fi
-AC_MSG_RESULT($SO)
-
-AC_DEFINE_UNQUOTED(SHLIB_EXT, "$SO", [Define this to be extension of shared libraries (including the dot!).])
-# LDSHARED is the ld *command* used to create shared library
-# -- "cc -G" on SunOS 5.x, "ld -shared" on IRIX 5
-# (Shared libraries in this instance are shared modules to be loaded into
-# Python, as opposed to building Python itself as a shared library.)
-AC_MSG_CHECKING(LDSHARED)
-if test -z "$LDSHARED"
-then
-	case $ac_sys_system/$ac_sys_release in
-	AIX*)
-		BLDSHARED="\$(srcdir)/Modules/ld_so_aix \$(CC) -bI:\$(srcdir)/Modules/python.exp"
-		LDSHARED="\$(BINLIBDEST)/config/ld_so_aix \$(CC) -bI:\$(BINLIBDEST)/config/python.exp"
-		;;
-	IRIX/5*) LDSHARED="ld -shared";;
-	IRIX*/6*) LDSHARED="ld ${SGI_ABI} -shared -all";;
-	SunOS/5*)
-		if test "$GCC" = "yes"
-		then LDSHARED='$(CC) -shared $(LDFLAGS)'
-		else LDSHARED='$(CC) -G $(LDFLAGS)';
-		fi ;;
-	hp*|HP*)
-		if test "$GCC" = "yes"
-		then LDSHARED='$(CC) -shared'
-		else LDSHARED='ld -b';
-		fi ;;
-	OSF*) LDSHARED="ld -shared -expect_unresolved \"*\"";;
-	Darwin/1.3*)
-		LDSHARED='$(CC) $(LDFLAGS) -bundle'
-		if test "$enable_framework" ; then
-			# Link against the framework. All externals should be defined.
-			BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-			LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-		else
-			# No framework. Ignore undefined symbols, assuming they come from Python
-			LDSHARED="$LDSHARED -undefined suppress"
-		fi ;;
-	Darwin/1.4*|Darwin/5.*|Darwin/6.*)
-		LDSHARED='$(CC) $(LDFLAGS) -bundle'
-		if test "$enable_framework" ; then
-			# Link against the framework. All externals should be defined.
-			BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-			LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-		else
-			# No framework, use the Python app as bundle-loader
-			BLDSHARED="$LDSHARED "'-bundle_loader $(BUILDPYTHON)'
-			LDSHARED="$LDSHARED "'-bundle_loader $(BINDIR)/python$(VERSION)$(EXE)'
-		fi ;;
-	Darwin/*)
-		# Use -undefined dynamic_lookup whenever possible (10.3 and later).
-		# This allows an extension to be used in any Python
-
-		if test ${MACOSX_DEPLOYMENT_TARGET} '>' 10.2
-		then
-			if test "${enable_universalsdk}"; then
-				LDFLAGS="${UNIVERSAL_ARCH_FLAGS} -isysroot ${UNIVERSALSDK} ${LDFLAGS}"
-			fi
-			LDSHARED='$(CC) $(LDFLAGS) -bundle -undefined dynamic_lookup'
-			BLDSHARED="$LDSHARED"
-		else
-			LDSHARED='$(CC) $(LDFLAGS) -bundle'
-			if test "$enable_framework" ; then
-				# Link against the framework. All externals should be defined.
-				BLDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-				LDSHARED="$LDSHARED "'$(PYTHONFRAMEWORKPREFIX)/$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-			else
-				# No framework, use the Python app as bundle-loader
-				BLDSHARED="$LDSHARED "'-bundle_loader $(BUILDPYTHON)'
-				LDSHARED="$LDSHARED "'-bundle_loader $(BINDIR)/python$(VERSION)$(EXE)'
-			fi
-		fi
-		;;
-	Linux*|GNU*|QNX*) LDSHARED='$(CC) -shared';;
-	BSD/OS*/4*) LDSHARED="gcc -shared";;
-	FreeBSD*)
-		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
-		then
-			LDSHARED='$(CC) -shared ${LDFLAGS}'
-		else
-			LDSHARED="ld -Bshareable ${LDFLAGS}"
-		fi;;
-	OpenBSD*)
-		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
-		then
-				LDSHARED='$(CC) -shared $(CCSHARED) ${LDFLAGS}'
-		else
-				case `uname -r` in
-				[[01]].* | 2.[[0-7]] | 2.[[0-7]].*)
-				   LDSHARED="ld -Bshareable ${LDFLAGS}"
-				   ;;
-				*)
-				   LDSHARED='$(CC) -shared $(CCSHARED) ${LDFLAGS}'
-				   ;;
-				esac
-		fi;;
-	NetBSD*|DragonFly*) LDSHARED='$(CC) -shared ${LDFLAGS}';;
-	OpenUNIX*|UnixWare*)
-		if test "$GCC" = "yes"
-		then LDSHARED='$(CC) -shared'
-		else LDSHARED='$(CC) -G'
-		fi;;
-	SCO_SV*) LDSHARED='$(CC) -Wl,-G,-Bexport';;
-	CYGWIN*) LDSHARED="gcc -shared -Wl,--enable-auto-image-base";;
-	atheos*) LDSHARED="gcc -shared";;
-	*)	LDSHARED="ld";;
-	esac
-fi
-AC_MSG_RESULT($LDSHARED)
-BLDSHARED=${BLDSHARED-$LDSHARED}
-# CCSHARED are the C *flags* used to create objects to go into a shared
-# library (module) -- this is only needed for a few systems
-AC_MSG_CHECKING(CCSHARED)
-if test -z "$CCSHARED"
-then
-	case $ac_sys_system/$ac_sys_release in
-	SunOS*) if test "$GCC" = yes;
-		then CCSHARED="-fPIC";
-		elif test `uname -p` = sparc;
-		then CCSHARED="-xcode=pic32";
-		else CCSHARED="-Kpic";
-		fi;;
-	hp*|HP*) if test "$GCC" = yes;
-		 then CCSHARED="-fPIC";
-		 else CCSHARED="+z";
-		 fi;;
-	Linux*|GNU*) CCSHARED="-fPIC";;
-	BSD/OS*/4*) CCSHARED="-fpic";;
-	FreeBSD*|NetBSD*|OpenBSD*|DragonFly*) CCSHARED="-fPIC";;
-	OpenUNIX*|UnixWare*)
-		if test "$GCC" = "yes"
-		then CCSHARED="-fPIC"
-		else CCSHARED="-KPIC"
-		fi;;
-	SCO_SV*)
-		if test "$GCC" = "yes"
-		then CCSHARED="-fPIC"
-		else CCSHARED="-Kpic -belf"
-		fi;;
-	IRIX*/6*)  case $CC in
-		   *gcc*) CCSHARED="-shared";;
-		   *) CCSHARED="";;
-		   esac;;
-	atheos*) CCSHARED="-fPIC";;
-	esac
-fi
-AC_MSG_RESULT($CCSHARED)
-# LINKFORSHARED are the flags passed to the $(CC) command that links
-# the python executable -- this is only needed for a few systems
-AC_MSG_CHECKING(LINKFORSHARED)
-if test -z "$LINKFORSHARED"
-then
-	case $ac_sys_system/$ac_sys_release in
-	AIX*)	LINKFORSHARED='-Wl,-bE:Modules/python.exp -lld';;
-	hp*|HP*)
-	    LINKFORSHARED="-Wl,-E -Wl,+s";;
-#	    LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;
-	BSD/OS/4*) LINKFORSHARED="-Xlinker -export-dynamic";;
-	Linux*|GNU*) LINKFORSHARED="-Xlinker -export-dynamic";;
-	# -u libsys_s pulls in all symbols in libsys
-	Darwin/*)
-		LINKFORSHARED="$extra_undefs -framework CoreFoundation"
-		if test "$enable_framework"
-		then
-			LINKFORSHARED="$LINKFORSHARED "'$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-		fi
-		LINKFORSHARED="$LINKFORSHARED";;
-	OpenUNIX*|UnixWare*) LINKFORSHARED="-Wl,-Bexport";;
-	SCO_SV*) LINKFORSHARED="-Wl,-Bexport";;
-	ReliantUNIX*) LINKFORSHARED="-W1 -Blargedynsym";;
-	FreeBSD*|NetBSD*|OpenBSD*|DragonFly*)
-		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
-		then
-			LINKFORSHARED="-Wl,--export-dynamic"
-		fi;;
-	SunOS/5*) case $CC in
-		  *gcc*)
-		    if $CC -Xlinker --help 2>&1 | grep export-dynamic >/dev/null
-		    then
-			LINKFORSHARED="-Xlinker --export-dynamic"
-		    fi;;
-		  esac;;
-	CYGWIN*)
-		if test $enable_shared = "no"
-		then
-			LINKFORSHARED='-Wl,--out-implib=$(LDLIBRARY)'
-		fi;;
-	QNX*)
-		# -Wl,-E causes the symbols to be added to the dynamic
-		# symbol table so that they can be found when a module
-		# is loaded.  -N 2048K causes the stack size to be set
-		# to 2048 kilobytes so that the stack doesn't overflow
-		# when running test_compile.py.
-		LINKFORSHARED='-Wl,-E -N 2048K';;
-	esac
-fi
-AC_MSG_RESULT($LINKFORSHARED)
-
-
-AC_SUBST(CFLAGSFORSHARED)
-AC_MSG_CHECKING(CFLAGSFORSHARED)
-if test ! "$LIBRARY" = "$LDLIBRARY"
-then
-	case $ac_sys_system in
-	CYGWIN*)
-		# Cygwin needs CCSHARED when building extension DLLs
-		# but not when building the interpreter DLL.
-		CFLAGSFORSHARED='';;
-	*)
-		CFLAGSFORSHARED='$(CCSHARED)'
-	esac
-fi
-AC_MSG_RESULT($CFLAGSFORSHARED)
-
-# SHLIBS are libraries (except -lc and -lm) to link to the python shared
-# library (with --enable-shared).
-# For platforms on which shared libraries are not allowed to have unresolved
-# symbols, this must be set to $(LIBS) (expanded by make). We do this even
-# if it is not required, since it creates a dependency of the shared library
-# to LIBS. This, in turn, means that applications linking the shared libpython
-# don't need to link LIBS explicitly. The default should be only changed
-# on systems where this approach causes problems.
-AC_SUBST(SHLIBS)
-AC_MSG_CHECKING(SHLIBS)
-case "$ac_sys_system" in
-	*)
-		SHLIBS='$(LIBS)';;
-esac
-AC_MSG_RESULT($SHLIBS)
-
-
-# checks for libraries
-AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
-AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
-
-# only check for sem_init if thread support is requested
-if test "$with_threads" = "yes" -o -z "$with_threads"; then
-    AC_SEARCH_LIBS(sem_init, pthread rt posix4) # 'Real Time' functions on Solaris
-						# posix4 on Solaris 2.6
-						# pthread (first!) on Linux
-fi
-
-# check if we need libintl for locale functions
-AC_CHECK_LIB(intl, textdomain,
-	[AC_DEFINE(WITH_LIBINTL, 1,
-	[Define to 1 if libintl is needed for locale functions.])
-        LIBS="-lintl $LIBS"])
-
-# checks for system dependent C++ extensions support
-case "$ac_sys_system" in
-	AIX*)	AC_MSG_CHECKING(for genuine AIX C++ extensions support)
-		AC_TRY_LINK([#include <load.h>],
-			    [loadAndInit("", 0, "")],
-			    [AC_DEFINE(AIX_GENUINE_CPLUSPLUS, 1,
-                      [Define for AIX if your compiler is a genuine IBM xlC/xlC_r
-                       and you want support for AIX C++ shared extension modules.])
-			     AC_MSG_RESULT(yes)],
-			    [AC_MSG_RESULT(no)]);;
-	*) ;;
-esac
-
-# Most SVR4 platforms (e.g. Solaris) need -lsocket and -lnsl.
-AC_CHECK_LIB(nsl, t_open, [LIBS="-lnsl $LIBS"]) # SVR4
-AC_CHECK_LIB(socket, socket, [LIBS="-lsocket $LIBS"], [], $LIBS) # SVR4 sockets
-
-AC_MSG_CHECKING(for --with-libs)
-AC_ARG_WITH(libs,
-            AC_HELP_STRING(--with-libs='lib1 ...', link against additional libs),
-[
-AC_MSG_RESULT($withval)
-LIBS="$withval $LIBS"
-],
-[AC_MSG_RESULT(no)])
-
-# Check for use of the system libffi library
-AC_MSG_CHECKING(for --with-system-ffi)
-AC_ARG_WITH(system_ffi,
-            AC_HELP_STRING(--with-system-ffi, build _ctypes module using an installed ffi library),
-            [],
-            [with_system_ffi="no"])
-
-AC_MSG_RESULT($with_system_ffi)
-
-# Check for --with-dbmliborder
-AC_MSG_CHECKING(for --with-dbmliborder)
-AC_ARG_WITH(dbmliborder,
-            AC_HELP_STRING([--with-dbmliborder=db1:db2:...], [order to check db backends for dbm. Valid value is a colon separated string with the backend names `ndbm', `gdbm' and `bdb'.]),
-[
-if test x$with_dbmliborder = xyes
-then
-AC_MSG_ERROR([proper usage is --with-dbmliborder=db1:db2:...])
-else
-  for db in `echo $with_dbmliborder | sed 's/:/ /g'`; do
-    if test x$db != xndbm && test x$db != xgdbm && test x$db != xbdb
-    then
-      AC_MSG_ERROR([proper usage is --with-dbmliborder=db1:db2:...])
-    fi
-  done
-fi])
-AC_MSG_RESULT($with_dbmliborder)
-
-# Determine if signalmodule should be used.
-AC_SUBST(USE_SIGNAL_MODULE)
-AC_SUBST(SIGNAL_OBJS)
-AC_MSG_CHECKING(for --with-signal-module)
-AC_ARG_WITH(signal-module,
-            AC_HELP_STRING(--with-signal-module, disable/enable signal module))
-
-if test -z "$with_signal_module"
-then with_signal_module="yes"
-fi
-AC_MSG_RESULT($with_signal_module)
-
-if test "${with_signal_module}" = "yes"; then
-	USE_SIGNAL_MODULE=""
-	SIGNAL_OBJS=""
-else
-	USE_SIGNAL_MODULE="#"
-	SIGNAL_OBJS="Parser/intrcheck.o Python/sigcheck.o"
-fi
-
-# This is used to generate Setup.config
-AC_SUBST(USE_THREAD_MODULE)
-USE_THREAD_MODULE=""
-
-AC_MSG_CHECKING(for --with-dec-threads)
-AC_SUBST(LDLAST)
-AC_ARG_WITH(dec-threads,
-            AC_HELP_STRING(--with-dec-threads, use DEC Alpha/OSF1 thread-safe libraries),
-[
-AC_MSG_RESULT($withval)
-LDLAST=-threads
-if test "${with_thread+set}" != set; then
-   with_thread="$withval";
-fi],
-[AC_MSG_RESULT(no)])
-
-# Templates for things AC_DEFINEd more than once.
-# For a single AC_DEFINE, no template is needed.
-AH_TEMPLATE(C_THREADS,[Define if you have the Mach cthreads package])
-AH_TEMPLATE(_REENTRANT,
-  [Define to force use of thread-safe errno, h_errno, and other functions])
-AH_TEMPLATE(WITH_THREAD,
-  [Define if you want to compile in rudimentary thread support])
-
-AC_MSG_CHECKING(for --with-threads)
-dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
-AC_ARG_WITH(threads,
-            AC_HELP_STRING(--with(out)-threads@<:@=DIRECTORY@:>@, disable/enable thread support))
-
-# --with-thread is deprecated, but check for it anyway
-dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
-AC_ARG_WITH(thread,
-            AC_HELP_STRING(--with(out)-thread@<:@=DIRECTORY@:>@, deprecated; use --with(out)-threads),
-            [with_threads=$with_thread])
-
-if test -z "$with_threads"
-then with_threads="yes"
-fi
-AC_MSG_RESULT($with_threads)
-
-AC_SUBST(THREADOBJ)
-if test "$with_threads" = "no"
-then
-    USE_THREAD_MODULE="#"
-elif test "$ac_cv_pthread_is_default" = yes
-then
-    AC_DEFINE(WITH_THREAD)
-    # Defining _REENTRANT on system with POSIX threads should not hurt.
-    AC_DEFINE(_REENTRANT)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"
-elif test "$ac_cv_kpthread" = "yes"
-then
-    CC="$CC -Kpthread"
-    if test "$ac_cv_cxx_thread" = "yes"; then
-        CXX="$CXX -Kpthread"
-    fi
-    AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"
-elif test "$ac_cv_kthread" = "yes"
-then
-    CC="$CC -Kthread"
-    if test "$ac_cv_cxx_thread" = "yes"; then
-        CXX="$CXX -Kthread"
-    fi
-    AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"
-elif test "$ac_cv_pthread" = "yes"
-then
-    CC="$CC -pthread"
-    if test "$ac_cv_cxx_thread" = "yes"; then
-        CXX="$CXX -pthread"
-    fi
-    AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"
-else
-    if test ! -z "$with_threads" -a -d "$with_threads"
-    then LDFLAGS="$LDFLAGS -L$with_threads"
-    fi
-    if test ! -z "$withval" -a -d "$withval"
-    then LDFLAGS="$LDFLAGS -L$withval"
-    fi
-
-    # According to the POSIX spec, a pthreads implementation must
-    # define _POSIX_THREADS in unistd.h. Some apparently don't
-    # (e.g. gnu pth with pthread emulation)
-    AC_MSG_CHECKING(for _POSIX_THREADS in unistd.h)
-    AC_EGREP_CPP(yes,
-    [
-#include <unistd.h>
-#ifdef _POSIX_THREADS
-yes
-#endif
-    ], unistd_defines_pthreads=yes, unistd_defines_pthreads=no)
-    AC_MSG_RESULT($unistd_defines_pthreads)
-
-    AC_DEFINE(_REENTRANT)
-    AC_CHECK_HEADER(cthreads.h, [AC_DEFINE(WITH_THREAD)
-    AC_DEFINE(C_THREADS)
-    AC_DEFINE(HURD_C_THREADS, 1,
-    [Define if you are using Mach cthreads directly under /include])
-    LIBS="$LIBS -lthreads"
-    THREADOBJ="Python/thread.o"],[
-    AC_CHECK_HEADER(mach/cthreads.h, [AC_DEFINE(WITH_THREAD)
-    AC_DEFINE(C_THREADS)
-    AC_DEFINE(MACH_C_THREADS, 1,
-    [Define if you are using Mach cthreads under mach /])
-    THREADOBJ="Python/thread.o"],[
-    AC_MSG_CHECKING(for --with-pth)
-    AC_ARG_WITH([pth],
-                AC_HELP_STRING(--with-pth, use GNU pth threading libraries),
-                [AC_MSG_RESULT($withval)
-                  AC_DEFINE([WITH_THREAD])
-                  AC_DEFINE([HAVE_PTH], 1,
-                            [Define if you have GNU PTH threads.])
-                  LIBS="-lpth $LIBS"
-                  THREADOBJ="Python/thread.o"],
-	        [AC_MSG_RESULT(no)
-
-    # Just looking for pthread_create in libpthread is not enough:
-    # on HP/UX, pthread.h renames pthread_create to a different symbol name.
-    # So we really have to include pthread.h, and then link.
-    _libs=$LIBS
-    LIBS="$LIBS -lpthread"
-    AC_MSG_CHECKING([for pthread_create in -lpthread])
-    AC_TRY_LINK([#include <pthread.h>
-
-void * start_routine (void *arg) { exit (0); }], [
-pthread_create (NULL, NULL, start_routine, NULL)], [
-    AC_MSG_RESULT(yes)
-    AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"],[
-    LIBS=$_libs
-    AC_CHECK_FUNC(pthread_detach, [AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    THREADOBJ="Python/thread.o"],[
-    AC_CHECK_HEADER(atheos/threads.h, [AC_DEFINE(WITH_THREAD)
-    AC_DEFINE(ATHEOS_THREADS, 1,
-    [Define this if you have AtheOS threads.])
-    THREADOBJ="Python/thread.o"],[
-    AC_CHECK_LIB(pthreads, pthread_create, [AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    LIBS="$LIBS -lpthreads"
-    THREADOBJ="Python/thread.o"], [
-    AC_CHECK_LIB(c_r, pthread_create, [AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    LIBS="$LIBS -lc_r"
-    THREADOBJ="Python/thread.o"], [
-    AC_CHECK_LIB(pthread, __pthread_create_system, [AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    LIBS="$LIBS -lpthread"
-    THREADOBJ="Python/thread.o"], [
-    AC_CHECK_LIB(cma, pthread_create, [AC_DEFINE(WITH_THREAD)
-    posix_threads=yes
-    LIBS="$LIBS -lcma"
-    THREADOBJ="Python/thread.o"],[
-    USE_THREAD_MODULE="#"])
-    ])])])])])])])])])
-
-    AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
-    LIBS="$LIBS -lmpc"
-    THREADOBJ="Python/thread.o"
-    USE_THREAD_MODULE=""])
-
-    if test "$posix_threads" != "yes"; then
-      AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)
-      LIBS="$LIBS -lthread"
-      THREADOBJ="Python/thread.o"
-      USE_THREAD_MODULE=""])
-    fi
-
-    if test "$USE_THREAD_MODULE" != "#"
-    then
-        # If the above checks didn't disable threads, (at least) OSF1
-        # needs this '-threads' argument during linking.
-        case $ac_sys_system in
-        OSF1) LDLAST=-threads;;
-        esac
-    fi
-fi
-
-if test "$posix_threads" = "yes"; then
-      if test "$unistd_defines_pthreads" = "no"; then
-         AC_DEFINE(_POSIX_THREADS, 1,
-         [Define if you have POSIX threads,
-          and your system does not define that.])
-      fi
-
-      # Bug 662787: Using semaphores causes unexplicable hangs on Solaris 8.
-      case  $ac_sys_system/$ac_sys_release in
-  SunOS/5.6) AC_DEFINE(HAVE_PTHREAD_DESTRUCTOR, 1,
-                       Defined for Solaris 2.6 bug in pthread header.)
-		       ;;
-      SunOS/5.8) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
-		       Define if the Posix semaphores do not work on your system)
-		       ;;
-      AIX/5) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
-		       Define if the Posix semaphores do not work on your system)
-		       ;;
-      AIX/6) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
-                      Define if the Posix semaphores do not work on your system)
-                      ;;
-      esac
-
-      AC_MSG_CHECKING(if PTHREAD_SCOPE_SYSTEM is supported)
-      AC_CACHE_VAL(ac_cv_pthread_system_supported,
-      [AC_TRY_RUN([#include <pthread.h>
-      void *foo(void *parm) {
-        return NULL;
-      }
-      main() {
-        pthread_attr_t attr;
-        pthread_t id;
-        if (pthread_attr_init(&attr)) exit(-1);
-        if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
-        if (pthread_create(&id, &attr, foo, NULL)) exit(-1);
-        exit(0);
-      }],
-      ac_cv_pthread_system_supported=yes,
-      ac_cv_pthread_system_supported=no,
-      ac_cv_pthread_system_supported=no)
-      ])
-      AC_MSG_RESULT($ac_cv_pthread_system_supported)
-      if test "$ac_cv_pthread_system_supported" = "yes"; then
-        AC_DEFINE(PTHREAD_SYSTEM_SCHED_SUPPORTED, 1, [Defined if PTHREAD_SCOPE_SYSTEM supported.])
-      fi
-      AC_CHECK_FUNCS(pthread_sigmask,
-        [case $ac_sys_system in
-        CYGWIN*)
-          AC_DEFINE(HAVE_BROKEN_PTHREAD_SIGMASK, 1,
-            [Define if pthread_sigmask() does not work on your system.])
-            ;;
-        esac])
-fi
-
-
-# Check for enable-ipv6
-AH_TEMPLATE(ENABLE_IPV6, [Define if --enable-ipv6 is specified])
-AC_MSG_CHECKING([if --enable-ipv6 is specified])
-AC_ARG_ENABLE(ipv6,
-[  --enable-ipv6           Enable ipv6 (with ipv4) support
-  --disable-ipv6          Disable ipv6 support],
-[ case "$enableval" in
-  no)
-       AC_MSG_RESULT(no)
-       ipv6=no
-       ;;
-  *)   AC_MSG_RESULT(yes)
-       AC_DEFINE(ENABLE_IPV6)
-       ipv6=yes
-       ;;
-  esac ],
-
-[
-dnl the check does not work on cross compilation case...
-  AC_TRY_RUN([ /* AF_INET6 available check */
-#include <sys/types.h>
-#include <sys/socket.h>
-main()
-{
- if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
-   exit(1);
- else
-   exit(0);
-}
-],
-  AC_MSG_RESULT(yes)
-  ipv6=yes,
-  AC_MSG_RESULT(no)
-  ipv6=no,
-  AC_MSG_RESULT(no)
-  ipv6=no
-)
-
-if test "$ipv6" = "yes"; then
-	AC_MSG_CHECKING(if RFC2553 API is available)
-	AC_TRY_COMPILE([#include <sys/types.h>
-#include <netinet/in.h>],
-	[struct sockaddr_in6 x;
-x.sin6_scope_id;],
-		AC_MSG_RESULT(yes)
-		ipv6=yes,
-		AC_MSG_RESULT(no, IPv6 disabled)
-		ipv6=no)
-fi
-
-if test "$ipv6" = "yes"; then
-	AC_DEFINE(ENABLE_IPV6)
-fi
-])
-
-ipv6type=unknown
-ipv6lib=none
-ipv6trylibc=no
-
-if test "$ipv6" = "yes"; then
-	AC_MSG_CHECKING([ipv6 stack type])
-	for i in inria kame linux-glibc linux-inet6 solaris toshiba v6d zeta;
-	do
-		case $i in
-		inria)
-			dnl http://www.kame.net/
-			AC_EGREP_CPP(yes, [
-#include <netinet/in.h>
-#ifdef IPV6_INRIA_VERSION
-yes
-#endif],
-				[ipv6type=$i])
-			;;
-		kame)
-			dnl http://www.kame.net/
-			AC_EGREP_CPP(yes, [
-#include <netinet/in.h>
-#ifdef __KAME__
-yes
-#endif],
-				[ipv6type=$i;
-				ipv6lib=inet6
-				ipv6libdir=/usr/local/v6/lib
-				ipv6trylibc=yes])
-			;;
-		linux-glibc)
-			dnl http://www.v6.linux.or.jp/
-			AC_EGREP_CPP(yes, [
-#include <features.h>
-#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2))
-yes
-#endif],
-				[ipv6type=$i;
-				ipv6trylibc=yes])
-			;;
-		linux-inet6)
-			dnl http://www.v6.linux.or.jp/
-			if test -d /usr/inet6; then
-				ipv6type=$i
-				ipv6lib=inet6
-				ipv6libdir=/usr/inet6/lib
-				BASECFLAGS="-I/usr/inet6/include $BASECFLAGS"
-			fi
-			;;
-		solaris)
-			if test -f /etc/netconfig; then
-                          if $GREP -q tcp6 /etc/netconfig; then
-				ipv6type=$i
-				ipv6trylibc=yes
-                          fi
-                        fi
-			;;
-		toshiba)
-			AC_EGREP_CPP(yes, [
-#include <sys/param.h>
-#ifdef _TOSHIBA_INET6
-yes
-#endif],
-				[ipv6type=$i;
-				ipv6lib=inet6;
-				ipv6libdir=/usr/local/v6/lib])
-			;;
-		v6d)
-			AC_EGREP_CPP(yes, [
-#include </usr/local/v6/include/sys/v6config.h>
-#ifdef __V6D__
-yes
-#endif],
-				[ipv6type=$i;
-				ipv6lib=v6;
-				ipv6libdir=/usr/local/v6/lib;
-				BASECFLAGS="-I/usr/local/v6/include $BASECFLAGS"])
-			;;
-		zeta)
-			AC_EGREP_CPP(yes, [
-#include <sys/param.h>
-#ifdef _ZETA_MINAMI_INET6
-yes
-#endif],
-				[ipv6type=$i;
-				ipv6lib=inet6;
-				ipv6libdir=/usr/local/v6/lib])
-			;;
-		esac
-		if test "$ipv6type" != "unknown"; then
-			break
-		fi
-	done
-	AC_MSG_RESULT($ipv6type)
-fi
-
-if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then
-	if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then
-		LIBS="-L$ipv6libdir -l$ipv6lib $LIBS"
-		echo "using lib$ipv6lib"
-	else
-		if test $ipv6trylibc = "yes"; then
-			echo "using libc"
-		else
-			echo 'Fatal: no $ipv6lib library found.  cannot continue.'
-			echo "You need to fetch lib$ipv6lib.a from appropriate"
-			echo 'ipv6 kit and compile beforehand.'
-			exit 1
-		fi
-	fi
-fi
-
-AC_MSG_CHECKING(for OSX 10.5 SDK or later)
-AC_TRY_COMPILE([#include <Carbon/Carbon.h>], FSIORefNum fRef = 0,
-  AC_DEFINE(HAVE_OSX105_SDK, 1, Define if compiling using MacOS X 10.5 SDK or later.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-# Check for --with-doc-strings
-AC_MSG_CHECKING(for --with-doc-strings)
-AC_ARG_WITH(doc-strings,
-            AC_HELP_STRING(--with(out)-doc-strings, disable/enable documentation strings))
-
-if test -z "$with_doc_strings"
-then with_doc_strings="yes"
-fi
-if test "$with_doc_strings" != "no"
-then
-    AC_DEFINE(WITH_DOC_STRINGS, 1,
-      [Define if you want documentation strings in extension modules])
-fi
-AC_MSG_RESULT($with_doc_strings)
-
-# Check if eval loop should use timestamp counter profiling
-AC_MSG_CHECKING(for --with-tsc)
-AC_ARG_WITH(tsc,
-[  --with(out)-tsc         enable/disable timestamp counter profile], [
-if test "$withval" != no
-then
-  AC_DEFINE(WITH_TSC, 1,
-    [Define to profile with the Pentium timestamp counter])
-    AC_MSG_RESULT(yes)
-else AC_MSG_RESULT(no)
-fi],
-[AC_MSG_RESULT(no)])
-
-# Check for Python-specific malloc support
-AC_MSG_CHECKING(for --with-pymalloc)
-AC_ARG_WITH(pymalloc,
-            AC_HELP_STRING(--with(out)-pymalloc, disable/enable specialized mallocs))
-
-if test -z "$with_pymalloc"
-then with_pymalloc="yes"
-fi
-if test "$with_pymalloc" != "no"
-then
-    AC_DEFINE(WITH_PYMALLOC, 1,
-     [Define if you want to compile in Python-specific mallocs])
-fi
-AC_MSG_RESULT($with_pymalloc)
-
-# Check for --with-wctype-functions
-AC_MSG_CHECKING(for --with-wctype-functions)
-AC_ARG_WITH(wctype-functions,
-            AC_HELP_STRING(--with-wctype-functions, use wctype.h functions),
-[
-if test "$withval" != no
-then
-  AC_DEFINE(WANT_WCTYPE_FUNCTIONS, 1,
-  [Define if you want wctype.h functions to be used instead of the
-   one supplied by Python itself. (see Include/unicodectype.h).])
-  AC_MSG_RESULT(yes)
-else AC_MSG_RESULT(no)
-fi],
-[AC_MSG_RESULT(no)])
-
-# -I${DLINCLDIR} is added to the compile rule for importdl.o
-AC_SUBST(DLINCLDIR)
-DLINCLDIR=.
-
-# the dlopen() function means we might want to use dynload_shlib.o. some
-# platforms, such as AIX, have dlopen(), but don't want to use it.
-AC_CHECK_FUNCS(dlopen)
-
-# DYNLOADFILE specifies which dynload_*.o file we will use for dynamic
-# loading of modules.
-AC_SUBST(DYNLOADFILE)
-AC_MSG_CHECKING(DYNLOADFILE)
-if test -z "$DYNLOADFILE"
-then
-	case $ac_sys_system/$ac_sys_release in
-	AIX*) # Use dynload_shlib.c and dlopen() if we have it; otherwise dynload_aix.c
-	if test "$ac_cv_func_dlopen" = yes
-	then DYNLOADFILE="dynload_shlib.o"
-	else DYNLOADFILE="dynload_aix.o"
-	fi
-	;;
-	hp*|HP*) DYNLOADFILE="dynload_hpux.o";;
-	# Use dynload_next.c only on 10.2 and below, which don't have native dlopen()
-	Darwin/@<:@0156@:>@\..*) DYNLOADFILE="dynload_next.o";;
-	atheos*) DYNLOADFILE="dynload_atheos.o";;
-	*)
-	# use dynload_shlib.c and dlopen() if we have it; otherwise stub
-	# out any dynamic loading
-	if test "$ac_cv_func_dlopen" = yes
-	then DYNLOADFILE="dynload_shlib.o"
-	else DYNLOADFILE="dynload_stub.o"
-	fi
-	;;
-	esac
-fi
-AC_MSG_RESULT($DYNLOADFILE)
-if test "$DYNLOADFILE" != "dynload_stub.o"
-then
-	AC_DEFINE(HAVE_DYNAMIC_LOADING, 1,
-        [Defined when any dynamic module loading is enabled.])
-fi
-
-# MACHDEP_OBJS can be set to platform-specific object files needed by Python
-
-AC_SUBST(MACHDEP_OBJS)
-AC_MSG_CHECKING(MACHDEP_OBJS)
-if test -z "$MACHDEP_OBJS"
-then
-	MACHDEP_OBJS=$extra_machdep_objs
-else
-	MACHDEP_OBJS="$MACHDEP_OBJS $extra_machdep_objs"
-fi
-AC_MSG_RESULT(MACHDEP_OBJS)
-
-# checks for library functions
-AC_CHECK_FUNCS(alarm setitimer getitimer bind_textdomain_codeset chown \
- clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
- gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
- getpriority getpwent getspnam getspent getsid getwd \
- kill killpg lchmod lchown lstat mbrtowc mkfifo mknod mktime \
- mremap nice pathconf pause plock poll pthread_init \
- putenv readlink realpath \
- select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \
- setgid \
- setlocale setregid setreuid setsid setpgid setpgrp setuid setvbuf snprintf \
- sigaction siginterrupt sigrelse strftime strlcpy \
- sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
- truncate uname unsetenv utimes waitpid wait3 wait4 \
- wcscoll wcsftime wcsxfrm _getpty)
-
-# For some functions, having a definition is not sufficient, since
-# we want to take their address.
-AC_MSG_CHECKING(for chroot)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=chroot,
-  AC_DEFINE(HAVE_CHROOT, 1, Define if you have the 'chroot' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for link)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=link,
-  AC_DEFINE(HAVE_LINK, 1, Define if you have the 'link' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for symlink)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=symlink,
-  AC_DEFINE(HAVE_SYMLINK, 1, Define if you have the 'symlink' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for fchdir)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=fchdir,
-  AC_DEFINE(HAVE_FCHDIR, 1, Define if you have the 'fchdir' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for fsync)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=fsync,
-  AC_DEFINE(HAVE_FSYNC, 1, Define if you have the 'fsync' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for fdatasync)
-AC_TRY_COMPILE([#include <unistd.h>], void *x=fdatasync,
-  AC_DEFINE(HAVE_FDATASYNC, 1, Define if you have the 'fdatasync' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for epoll)
-AC_TRY_COMPILE([#include <sys/epoll.h>], void *x=epoll_create,
-  AC_DEFINE(HAVE_EPOLL, 1, Define if you have the 'epoll' functions.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-AC_MSG_CHECKING(for kqueue)
-AC_TRY_COMPILE([
-#include <sys/types.h>
-#include <sys/event.h>
-    ], int x=kqueue(),
-  AC_DEFINE(HAVE_KQUEUE, 1, Define if you have the 'kqueue' functions.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-# On some systems (eg. FreeBSD 5), we would find a definition of the
-# functions ctermid_r, setgroups in the library, but no prototype
-# (e.g. because we use _XOPEN_SOURCE). See whether we can take their
-# address to avoid compiler warnings and potential miscompilations
-# because of the missing prototypes.
-
-AC_MSG_CHECKING(for ctermid_r)
-AC_TRY_COMPILE([
-#include "confdefs.h"
-#include <stdio.h>
-], void* p = ctermid_r,
-  AC_DEFINE(HAVE_CTERMID_R, 1, Define if you have the 'ctermid_r' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_CACHE_CHECK([for flock declaration], [ac_cv_flock_decl],
-  [AC_COMPILE_IFELSE(
-    [AC_LANG_PROGRAM(
-      [#include <sys/file.h>],
-      [void* p = flock]
-    )],
-    [ac_cv_flock_decl=yes],
-    [ac_cv_flock_decl=no]
-  )
-])
-if test "x${ac_cv_flock_decl}" = xyes; then
-  AC_CHECK_FUNCS(flock,,
-    AC_CHECK_LIB(bsd,flock,
-      [AC_DEFINE(HAVE_FLOCK)
-       AC_DEFINE(FLOCK_NEEDS_LIBBSD, 1, Define if flock needs to be linked with bsd library.)
-    ])
-  )
-fi
-
-AC_MSG_CHECKING(for getpagesize)
-AC_TRY_COMPILE([
-#include "confdefs.h"
-#include <unistd.h>
-], void* p = getpagesize,
-  AC_DEFINE(HAVE_GETPAGESIZE, 1, Define if you have the 'getpagesize' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-dnl check for true
-AC_CHECK_PROGS(TRUE, true, /bin/true)
-
-dnl On some systems (e.g. Solaris 9), hstrerror and inet_aton are in -lresolv
-dnl On others, they are in the C library, so we to take no action
-AC_CHECK_LIB(c, inet_aton, [$ac_cv_prog_TRUE],
-  AC_CHECK_LIB(resolv, inet_aton)
-)
-
-# On Tru64, chflags seems to be present, but calling it will
-# exit Python
-AC_CACHE_CHECK([for chflags], [ac_cv_have_chflags], [dnl
-AC_TRY_RUN([[
-#include <sys/stat.h>
-#include <unistd.h>
-int main(int argc, char*argv[])
-{
-  if(chflags(argv[0], 0) != 0)
-    return 1;
-  return 0;
-}
-]], ac_cv_have_chflags=yes,
-   ac_cv_have_chflags=no,
-   ac_cv_have_chflags=cross)
-])
-if test "$ac_cv_have_chflags" = cross ; then
-  AC_CHECK_FUNC([chflags], [ac_cv_have_chflags="yes"], [ac_cv_have_chflags="no"])
-fi
-if test "$ac_cv_have_chflags" = yes ; then
-  AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
-fi
-
-AC_CACHE_CHECK([for lchflags], [ac_cv_have_lchflags], [dnl
-AC_TRY_RUN([[
-#include <sys/stat.h>
-#include <unistd.h>
-int main(int argc, char*argv[])
-{
-  if(lchflags(argv[0], 0) != 0)
-    return 1;
-  return 0;
-}
-]], ac_cv_have_lchflags=yes,
-   ac_cv_have_lchflags=no,
-   ac_cv_have_lchflags=cross)
-])
-if test "$ac_cv_have_lchflags" = cross ; then
-  AC_CHECK_FUNC([lchflags], [ac_cv_have_lchflags="yes"], [ac_cv_have_lchflags="no"])
-fi
-if test "$ac_cv_have_lchflags" = yes ; then
-  AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
-fi
-
-dnl Check if system zlib has *Copy() functions
-dnl
-dnl On MacOSX the linker will search for dylibs on the entire linker path
-dnl before searching for static libraries. setup.py adds -Wl,-search_paths_first
-dnl to revert to a more traditional unix behaviour and make it possible to
-dnl override the system libz with a local static library of libz. Temporarily
-dnl add that flag to our CFLAGS as well to ensure that we check the version
-dnl of libz that will be used by setup.py.
-dnl The -L/usr/local/lib is needed as wel to get the same compilation
-dnl environment as setup.py (and leaving it out can cause configure to use the
-dnl wrong version of the library)
-case $ac_sys_system/$ac_sys_release in
-Darwin/*)
-	_CUR_CFLAGS="${CFLAGS}"
-	_CUR_LDFLAGS="${LDFLAGS}"
-	CFLAGS="${CFLAGS} -Wl,-search_paths_first"
-	LDFLAGS="${LDFLAGS} -Wl,-search_paths_first -L/usr/local/lib"
-	;;
-esac
-
-AC_CHECK_LIB(z, inflateCopy, AC_DEFINE(HAVE_ZLIB_COPY, 1, Define if the zlib library has inflateCopy))
-
-case $ac_sys_system/$ac_sys_release in
-Darwin/*)
-	CFLAGS="${_CUR_CFLAGS}"
-	LDFLAGS="${_CUR_LDFLAGS}"
-	;;
-esac
-
-AC_MSG_CHECKING(for hstrerror)
-AC_TRY_LINK([
-#include "confdefs.h"
-#include <netdb.h>
-], void* p = hstrerror; hstrerror(0),
-  AC_DEFINE(HAVE_HSTRERROR, 1, Define if you have the 'hstrerror' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_MSG_CHECKING(for inet_aton)
-AC_TRY_LINK([
-#include "confdefs.h"
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-], void* p = inet_aton;inet_aton(0,0),
-  AC_DEFINE(HAVE_INET_ATON, 1, Define if you have the 'inet_aton' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_MSG_CHECKING(for inet_pton)
-AC_TRY_COMPILE([
-#include "confdefs.h"
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-], void* p = inet_pton,
-  AC_DEFINE(HAVE_INET_PTON, 1, Define if you have the 'inet_pton' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-# On some systems, setgroups is in unistd.h, on others, in grp.h
-AC_MSG_CHECKING(for setgroups)
-AC_TRY_COMPILE([
-#include "confdefs.h"
-#include <unistd.h>
-#ifdef HAVE_GRP_H
-#include <grp.h>
-#endif
-],
-void* p = setgroups,
-  AC_DEFINE(HAVE_SETGROUPS, 1, Define if you have the 'setgroups' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-# check for openpty and forkpty
-
-AC_CHECK_FUNCS(openpty,,
-   AC_CHECK_LIB(util,openpty,
-     [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"],
-     AC_CHECK_LIB(bsd,openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lbsd"])
-   )
-)
-AC_CHECK_FUNCS(forkpty,,
-   AC_CHECK_LIB(util,forkpty,
-     [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lutil"],
-     AC_CHECK_LIB(bsd,forkpty, [AC_DEFINE(HAVE_FORKPTY) LIBS="$LIBS -lbsd"])
-   )
-)
-
-# Stuff for expat.
-AC_CHECK_FUNCS(memmove)
-
-# check for long file support functions
-AC_CHECK_FUNCS(fseek64 fseeko fstatvfs ftell64 ftello statvfs)
-
-AC_REPLACE_FUNCS(dup2 getcwd strdup)
-AC_CHECK_FUNCS(getpgrp,
-  AC_TRY_COMPILE([#include <unistd.h>],
-   [getpgrp(0);],
-   AC_DEFINE(GETPGRP_HAVE_ARG, 1,
-   [Define if getpgrp() must be called as getpgrp(0).])
- )
-)
-AC_CHECK_FUNCS(setpgrp,
-  AC_TRY_COMPILE([#include <unistd.h>],
-    [setpgrp(0,0);],
-    AC_DEFINE(SETPGRP_HAVE_ARG, 1,
-    [Define if setpgrp() must be called as setpgrp(0, 0).])
-  )
-)
-AC_CHECK_FUNCS(gettimeofday,
-  AC_TRY_COMPILE([#include <sys/time.h>],
-    [gettimeofday((struct timeval*)0,(struct timezone*)0);], ,
-    AC_DEFINE(GETTIMEOFDAY_NO_TZ, 1,
-    [Define if gettimeofday() does not have second (timezone) argument
-     This is the case on Motorola V4 (R40V4.2)])
-  )
-)
-
-AC_MSG_CHECKING(for major, minor, and makedev)
-AC_TRY_LINK([
-#if defined(MAJOR_IN_MKDEV)
-#include <sys/mkdev.h>
-#elif defined(MAJOR_IN_SYSMACROS)
-#include <sys/sysmacros.h>
-#else
-#include <sys/types.h>
-#endif
-],[
-  makedev(major(0),minor(0));
-],[
-  AC_DEFINE(HAVE_DEVICE_MACROS, 1,
-	    [Define to 1 if you have the device macros.])
-  AC_MSG_RESULT(yes)
-],[
-  AC_MSG_RESULT(no)
-])
-
-# On OSF/1 V5.1, getaddrinfo is available, but a define
-# for [no]getaddrinfo in netdb.h.
-AC_MSG_CHECKING(for getaddrinfo)
-AC_TRY_LINK([
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <stdio.h>
-],[
-getaddrinfo(NULL, NULL, NULL, NULL);
-], [
-AC_MSG_RESULT(yes)
-AC_MSG_CHECKING(getaddrinfo bug)
-AC_TRY_RUN([
-#include <sys/types.h>
-#include <netdb.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-main()
-{
-  int passive, gaierr, inet4 = 0, inet6 = 0;
-  struct addrinfo hints, *ai, *aitop;
-  char straddr[INET6_ADDRSTRLEN], strport[16];
-
-  for (passive = 0; passive <= 1; passive++) {
-    memset(&hints, 0, sizeof(hints));
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_flags = passive ? AI_PASSIVE : 0;
-    hints.ai_socktype = SOCK_STREAM;
-    hints.ai_protocol = IPPROTO_TCP;
-    if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
-      (void)gai_strerror(gaierr);
-      goto bad;
-    }
-    for (ai = aitop; ai; ai = ai->ai_next) {
-      if (ai->ai_addr == NULL ||
-          ai->ai_addrlen == 0 ||
-          getnameinfo(ai->ai_addr, ai->ai_addrlen,
-                      straddr, sizeof(straddr), strport, sizeof(strport),
-                      NI_NUMERICHOST|NI_NUMERICSERV) != 0) {
-        goto bad;
-      }
-      switch (ai->ai_family) {
-      case AF_INET:
-        if (strcmp(strport, "54321") != 0) {
-          goto bad;
-        }
-        if (passive) {
-          if (strcmp(straddr, "0.0.0.0") != 0) {
-            goto bad;
-          }
-        } else {
-          if (strcmp(straddr, "127.0.0.1") != 0) {
-            goto bad;
-          }
-        }
-        inet4++;
-        break;
-      case AF_INET6:
-        if (strcmp(strport, "54321") != 0) {
-          goto bad;
-        }
-        if (passive) {
-          if (strcmp(straddr, "::") != 0) {
-            goto bad;
-          }
-        } else {
-          if (strcmp(straddr, "::1") != 0) {
-            goto bad;
-          }
-        }
-        inet6++;
-        break;
-      case AF_UNSPEC:
-        goto bad;
-        break;
-      default:
-        /* another family support? */
-        break;
-      }
-    }
-  }
-
-  if (!(inet4 == 0 || inet4 == 2))
-    goto bad;
-  if (!(inet6 == 0 || inet6 == 2))
-    goto bad;
-
-  if (aitop)
-    freeaddrinfo(aitop);
-  exit(0);
-
- bad:
-  if (aitop)
-    freeaddrinfo(aitop);
-  exit(1);
-}
-],
-AC_MSG_RESULT(good)
-buggygetaddrinfo=no,
-AC_MSG_RESULT(buggy)
-buggygetaddrinfo=yes,
-AC_MSG_RESULT(buggy)
-buggygetaddrinfo=yes)], [
-AC_MSG_RESULT(no)
-buggygetaddrinfo=yes
-])
-
-if test "$buggygetaddrinfo" = "yes"; then
-	if test "$ipv6" = "yes"; then
-		echo 'Fatal: You must get working getaddrinfo() function.'
-		echo '       or you can specify "--disable-ipv6"'.
-		exit 1
-	fi
-else
-	AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if you have the getaddrinfo function.])
-fi
-AC_CHECK_FUNCS(getnameinfo)
-
-# checks for structures
-AC_HEADER_TIME
-AC_STRUCT_TM
-AC_STRUCT_TIMEZONE
-AC_CHECK_MEMBERS([struct stat.st_rdev])
-AC_CHECK_MEMBERS([struct stat.st_blksize])
-AC_CHECK_MEMBERS([struct stat.st_flags])
-AC_CHECK_MEMBERS([struct stat.st_gen])
-AC_CHECK_MEMBERS([struct stat.st_birthtime])
-AC_STRUCT_ST_BLOCKS
-
-AC_MSG_CHECKING(for time.h that defines altzone)
-AC_CACHE_VAL(ac_cv_header_time_altzone,
-[AC_TRY_COMPILE([#include <time.h>], [return altzone;],
-  ac_cv_header_time_altzone=yes,
-  ac_cv_header_time_altzone=no)])
-AC_MSG_RESULT($ac_cv_header_time_altzone)
-if test $ac_cv_header_time_altzone = yes; then
-  AC_DEFINE(HAVE_ALTZONE, 1, [Define this if your time.h defines altzone.])
-fi
-
-was_it_defined=no
-AC_MSG_CHECKING(whether sys/select.h and sys/time.h may both be included)
-AC_TRY_COMPILE([
-#include <sys/types.h>
-#include <sys/select.h>
-#include <sys/time.h>
-], [;], [
-  AC_DEFINE(SYS_SELECT_WITH_SYS_TIME, 1,
-  [Define if  you can safely include both <sys/select.h> and <sys/time.h>
-   (which you can't on SCO ODT 3.0).])
-  was_it_defined=yes
-])
-AC_MSG_RESULT($was_it_defined)
-
-AC_MSG_CHECKING(for addrinfo)
-AC_CACHE_VAL(ac_cv_struct_addrinfo,
-AC_TRY_COMPILE([
-#		include <netdb.h>],
-	[struct addrinfo a],
-	ac_cv_struct_addrinfo=yes,
-	ac_cv_struct_addrinfo=no))
-AC_MSG_RESULT($ac_cv_struct_addrinfo)
-if test $ac_cv_struct_addrinfo = yes; then
-	AC_DEFINE(HAVE_ADDRINFO, 1, [struct addrinfo (netdb.h)])
-fi
-
-AC_MSG_CHECKING(for sockaddr_storage)
-AC_CACHE_VAL(ac_cv_struct_sockaddr_storage,
-AC_TRY_COMPILE([
-#		include <sys/types.h>
-#		include <sys/socket.h>],
-	[struct sockaddr_storage s],
-	ac_cv_struct_sockaddr_storage=yes,
-	ac_cv_struct_sockaddr_storage=no))
-AC_MSG_RESULT($ac_cv_struct_sockaddr_storage)
-if test $ac_cv_struct_sockaddr_storage = yes; then
-	AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, [struct sockaddr_storage (sys/socket.h)])
-fi
-
-# checks for compiler characteristics
-
-AC_C_CHAR_UNSIGNED
-AC_C_CONST
-
-works=no
-AC_MSG_CHECKING(for working volatile)
-AC_TRY_COMPILE([],[volatile int x; x = 0;], works=yes,
-  AC_DEFINE(volatile, [], [Define to empty if the keyword does not work.])
-)
-AC_MSG_RESULT($works)
-
-works=no
-AC_MSG_CHECKING(for working signed char)
-AC_TRY_COMPILE([], [signed char c;], works=yes,
-  AC_DEFINE(signed, [], [Define to empty if the keyword does not work.])
-)
-AC_MSG_RESULT($works)
-
-have_prototypes=no
-AC_MSG_CHECKING(for prototypes)
-AC_TRY_COMPILE([int foo(int x) { return 0; }], [return foo(10);],[
-  AC_DEFINE(HAVE_PROTOTYPES, 1,
-   [Define if your compiler supports function prototype])
-  have_prototypes=yes
-])
-AC_MSG_RESULT($have_prototypes)
-
-works=no
-AC_MSG_CHECKING(for variable length prototypes and stdarg.h)
-AC_TRY_COMPILE([
-#include <stdarg.h>
-int foo(int x, ...) {
-	va_list va;
-	va_start(va, x);
-	va_arg(va, int);
-	va_arg(va, char *);
-	va_arg(va, double);
-	return 0;
-}
-], [return foo(10, "", 3.14);], [
-  AC_DEFINE(HAVE_STDARG_PROTOTYPES, 1,
-   [Define if your compiler supports variable length function prototypes
-   (e.g. void fprintf(FILE *, char *, ...);) *and* <stdarg.h>])
-  works=yes
-])
-AC_MSG_RESULT($works)
-
-# check for socketpair
-AC_MSG_CHECKING(for socketpair)
-AC_TRY_COMPILE([
-#include <sys/types.h>
-#include <sys/socket.h>
-], void *x=socketpair,
-  AC_DEFINE(HAVE_SOCKETPAIR, 1, Define if you have the 'socketpair' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-# check if sockaddr has sa_len member
-AC_MSG_CHECKING(if sockaddr has sa_len member)
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/socket.h>],
-[struct sockaddr x;
-x.sa_len = 0;],
-	AC_MSG_RESULT(yes)
-	AC_DEFINE(HAVE_SOCKADDR_SA_LEN, 1, [Define if sockaddr has sa_len member]),
-	AC_MSG_RESULT(no))
-
-va_list_is_array=no
-AC_MSG_CHECKING(whether va_list is an array)
-AC_TRY_COMPILE([
-#ifdef HAVE_STDARG_PROTOTYPES
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-], [va_list list1, list2; list1 = list2;], , [
- AC_DEFINE(VA_LIST_IS_ARRAY, 1, [Define if a va_list is an array of some kind])
- va_list_is_array=yes
-])
-AC_MSG_RESULT($va_list_is_array)
-
-# sigh -- gethostbyname_r is a mess; it can have 3, 5 or 6 arguments :-(
-AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
-  [Define this if you have some version of gethostbyname_r()])
-
-AC_CHECK_FUNC(gethostbyname_r, [
-  AC_DEFINE(HAVE_GETHOSTBYNAME_R)
-  AC_MSG_CHECKING([gethostbyname_r with 6 args])
-  OLD_CFLAGS=$CFLAGS
-  CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
-  AC_TRY_COMPILE([
-#   include <netdb.h>
-  ], [
-    char *name;
-    struct hostent *he, *res;
-    char buffer[2048];
-    int buflen = 2048;
-    int h_errnop;
-
-    (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop)
-  ], [
-    AC_DEFINE(HAVE_GETHOSTBYNAME_R)
-    AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
-    [Define this if you have the 6-arg version of gethostbyname_r().])
-    AC_MSG_RESULT(yes)
-  ], [
-    AC_MSG_RESULT(no)
-    AC_MSG_CHECKING([gethostbyname_r with 5 args])
-    AC_TRY_COMPILE([
-#     include <netdb.h>
-    ], [
-      char *name;
-      struct hostent *he;
-      char buffer[2048];
-      int buflen = 2048;
-      int h_errnop;
-
-      (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop)
-    ], [
-      AC_DEFINE(HAVE_GETHOSTBYNAME_R)
-      AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
-      [Define this if you have the 5-arg version of gethostbyname_r().])
-      AC_MSG_RESULT(yes)
-    ], [
-      AC_MSG_RESULT(no)
-      AC_MSG_CHECKING([gethostbyname_r with 3 args])
-      AC_TRY_COMPILE([
-#       include <netdb.h>
-      ], [
-        char *name;
-        struct hostent *he;
-        struct hostent_data data;
-
-        (void) gethostbyname_r(name, he, &data);
-      ], [
-        AC_DEFINE(HAVE_GETHOSTBYNAME_R)
-        AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
-        [Define this if you have the 3-arg version of gethostbyname_r().])
-        AC_MSG_RESULT(yes)
-      ], [
-        AC_MSG_RESULT(no)
-      ])
-    ])
-  ])
-  CFLAGS=$OLD_CFLAGS
-], [
-  AC_CHECK_FUNCS(gethostbyname)
-])
-AC_SUBST(HAVE_GETHOSTBYNAME_R_6_ARG)
-AC_SUBST(HAVE_GETHOSTBYNAME_R_5_ARG)
-AC_SUBST(HAVE_GETHOSTBYNAME_R_3_ARG)
-AC_SUBST(HAVE_GETHOSTBYNAME_R)
-AC_SUBST(HAVE_GETHOSTBYNAME)
-
-# checks for system services
-# (none yet)
-
-# Linux requires this for correct f.p. operations
-AC_CHECK_FUNC(__fpu_control,
-  [],
-  [AC_CHECK_LIB(ieee, __fpu_control)
-])
-
-# Check for --with-fpectl
-AC_MSG_CHECKING(for --with-fpectl)
-AC_ARG_WITH(fpectl,
-            AC_HELP_STRING(--with-fpectl, enable SIGFPE catching),
-[
-if test "$withval" != no
-then
-  AC_DEFINE(WANT_SIGFPE_HANDLER, 1,
-  [Define if you want SIGFPE handled (see Include/pyfpe.h).])
-  AC_MSG_RESULT(yes)
-else AC_MSG_RESULT(no)
-fi],
-[AC_MSG_RESULT(no)])
-
-# check for --with-libm=...
-AC_SUBST(LIBM)
-case $ac_sys_system in
-Darwin) ;;
-*) LIBM=-lm
-esac
-AC_MSG_CHECKING(for --with-libm=STRING)
-AC_ARG_WITH(libm,
-            AC_HELP_STRING(--with-libm=STRING, math library),
-[
-if test "$withval" = no
-then LIBM=
-     AC_MSG_RESULT(force LIBM empty)
-elif test "$withval" != yes
-then LIBM=$withval
-     AC_MSG_RESULT(set LIBM="$withval")
-else AC_MSG_ERROR([proper usage is --with-libm=STRING])
-fi],
-[AC_MSG_RESULT(default LIBM="$LIBM")])
-
-# check for --with-libc=...
-AC_SUBST(LIBC)
-AC_MSG_CHECKING(for --with-libc=STRING)
-AC_ARG_WITH(libc,
-            AC_HELP_STRING(--with-libc=STRING, C library),
-[
-if test "$withval" = no
-then LIBC=
-     AC_MSG_RESULT(force LIBC empty)
-elif test "$withval" != yes
-then LIBC=$withval
-     AC_MSG_RESULT(set LIBC="$withval")
-else AC_MSG_ERROR([proper usage is --with-libc=STRING])
-fi],
-[AC_MSG_RESULT(default LIBC="$LIBC")])
-
-# **************************************************
-# * Check for various properties of floating point *
-# **************************************************
-
-AC_MSG_CHECKING(whether C doubles are little-endian IEEE 754 binary64)
-AC_CACHE_VAL(ac_cv_little_endian_double, [
-AC_TRY_RUN([
-#include <string.h>
-int main() {
-    double x = 9006104071832581.0;
-    if (memcmp(&x, "\x05\x04\x03\x02\x01\xff\x3f\x43", 8) == 0)
-        return 0;
-    else
-        return 1;
-}
-],
-ac_cv_little_endian_double=yes,
-ac_cv_little_endian_double=no,
-ac_cv_little_endian_double=no)])
-AC_MSG_RESULT($ac_cv_little_endian_double)
-if test "$ac_cv_little_endian_double" = yes
-then
-  AC_DEFINE(DOUBLE_IS_LITTLE_ENDIAN_IEEE754, 1,
-  [Define if C doubles are 64-bit IEEE 754 binary format, stored
-   with the least significant byte first])
-fi
-
-AC_MSG_CHECKING(whether C doubles are big-endian IEEE 754 binary64)
-AC_CACHE_VAL(ac_cv_big_endian_double, [
-AC_TRY_RUN([
-#include <string.h>
-int main() {
-    double x = 9006104071832581.0;
-    if (memcmp(&x, "\x43\x3f\xff\x01\x02\x03\x04\x05", 8) == 0)
-        return 0;
-    else
-        return 1;
-}
-],
-ac_cv_big_endian_double=yes,
-ac_cv_big_endian_double=no,
-ac_cv_big_endian_double=no)])
-AC_MSG_RESULT($ac_cv_big_endian_double)
-if test "$ac_cv_big_endian_double" = yes
-then
-  AC_DEFINE(DOUBLE_IS_BIG_ENDIAN_IEEE754, 1,
-  [Define if C doubles are 64-bit IEEE 754 binary format, stored
-   with the most significant byte first])
-fi
-
-# Some ARM platforms use a mixed-endian representation for doubles.
-# While Python doesn't currently have full support for these platforms
-# (see e.g., issue 1762561), we can at least make sure that float <-> string
-# conversions work.
-AC_MSG_CHECKING(whether C doubles are ARM mixed-endian IEEE 754 binary64)
-AC_CACHE_VAL(ac_cv_mixed_endian_double, [
-AC_TRY_RUN([
-#include <string.h>
-int main() {
-    double x = 9006104071832581.0;
-    if (memcmp(&x, "\x01\xff\x3f\x43\x05\x04\x03\x02", 8) == 0)
-        return 0;
-    else
-        return 1;
-}
-],
-ac_cv_mixed_endian_double=yes,
-ac_cv_mixed_endian_double=no,
-ac_cv_mixed_endian_double=no)])
-AC_MSG_RESULT($ac_cv_mixed_endian_double)
-if test "$ac_cv_mixed_endian_double" = yes
-then
-  AC_DEFINE(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754, 1,
-  [Define if C doubles are 64-bit IEEE 754 binary format, stored
-   in ARM mixed-endian order (byte order 45670123)])
-fi
-
-# The short float repr introduced in Python 3.1 requires the
-# correctly-rounded string <-> double conversion functions from
-# Python/dtoa.c, which in turn require that the FPU uses 53-bit
-# rounding; this is a problem on x86, where the x87 FPU has a default
-# rounding precision of 64 bits.  For gcc/x86, we try to fix this by
-# using inline assembler to get and set the x87 FPU control word.
-if test "$GCC" = yes && test -n "`$CC -dM -E - </dev/null | grep i386`"
-then
-    # Check that it's okay to use gcc inline assembler to get and set
-    # x87 control word.  It should be, but you never know...
-    AC_MSG_CHECKING(whether we can use gcc inline assembler to get and set x87 control word)
-    AC_TRY_COMPILE([], [
-      unsigned short cw;
-      __asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
-      __asm__ __volatile__ ("fldcw %0" : : "m" (cw));
-    ],
-    [have_gcc_asm_for_x87=yes], [have_gcc_asm_for_x87=no])
-    AC_MSG_RESULT($have_gcc_asm_for_x87)
-    if test "$have_gcc_asm_for_x87" = yes
-    then
-        AC_DEFINE(HAVE_GCC_ASM_FOR_X87, 1,
-        [Define if we can use gcc inline assembler to get and set x87 control word])
-    fi
-fi
-
-# Detect whether system arithmetic is subject to x87-style double
-# rounding issues.  The result of this test has little meaning on non
-# IEEE 754 platforms.  On IEEE 754, test should return 1 if rounding
-# mode is round-to-nearest and double rounding issues are present, and
-# 0 otherwise.  See http://bugs.python.org/issue2937 for more info.
-AC_MSG_CHECKING(for x87-style double rounding)
-# $BASECFLAGS may affect the result
-ac_save_cc="$CC"
-CC="$CC $BASECFLAGS"
-AC_TRY_RUN([
-#include <stdlib.h>
-#include <math.h>
-int main() {
-    volatile double x, y, z;
-    /* 1./(1-2**-53) -> 1+2**-52 (correct), 1.0 (double rounding) */
-    x = 0.99999999999999989; /* 1-2**-53 */
-    y = 1./x;
-    if (y != 1.)
-        exit(0);
-    /* 1e16+2.99999 -> 1e16+2. (correct), 1e16+4. (double rounding) */
-    x = 1e16;
-    y = 2.99999;
-    z = x + y;
-    if (z != 1e16+4.)
-        exit(0);
-    /* both tests show evidence of double rounding */
-    exit(1);
-}
-],
-ac_cv_x87_double_rounding=no,
-ac_cv_x87_double_rounding=yes,
-ac_cv_x87_double_rounding=no)
-CC="$ac_save_cc"
-AC_MSG_RESULT($ac_cv_x87_double_rounding)
-if test "$ac_cv_x87_double_rounding" = yes
-then
-  AC_DEFINE(X87_DOUBLE_ROUNDING, 1,
-  [Define if arithmetic is subject to x87-style double rounding issue])
-fi
-
-# ************************************
-# * Check for mathematical functions *
-# ************************************
-
-LIBS_SAVE=$LIBS
-LIBS="$LIBS $LIBM"
-
-# On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of
-# -0. on some architectures.
-AC_MSG_CHECKING(whether tanh preserves the sign of zero)
-AC_CACHE_VAL(ac_cv_tanh_preserves_zero_sign, [
-AC_TRY_RUN([
-#include <math.h>
-#include <stdlib.h>
-int main() {
-    /* return 0 if either negative zeros don't exist
-       on this platform or if negative zeros exist
-       and tanh(-0.) == -0. */
-  if (atan2(0., -1.) == atan2(-0., -1.) ||
-      atan2(tanh(-0.), -1.) == atan2(-0., -1.)) exit(0);
-  else exit(1);
-}
-],
-ac_cv_tanh_preserves_zero_sign=yes,
-ac_cv_tanh_preserves_zero_sign=no,
-ac_cv_tanh_preserves_zero_sign=no)])
-AC_MSG_RESULT($ac_cv_tanh_preserves_zero_sign)
-if test "$ac_cv_tanh_preserves_zero_sign" = yes
-then
-  AC_DEFINE(TANH_PRESERVES_ZERO_SIGN, 1,
-  [Define if tanh(-0.) is -0., or if platform doesn't have signed zeros])
-fi
-
-AC_CHECK_FUNCS([acosh asinh atanh copysign expm1 finite hypot log1p round])
-AC_CHECK_DECLS([isinf, isnan, isfinite], [], [], [[#include <math.h>]])
-
-LIBS=$LIBS_SAVE
-
-# For multiprocessing module, check that sem_open
-# actually works.  For FreeBSD versions <= 7.2,
-# the kernel module that provides POSIX semaphores
-# isn't loaded by default, so an attempt to call
-# sem_open results in a 'Signal 12' error.
-AC_MSG_CHECKING(whether POSIX semaphores are enabled)
-AC_CACHE_VAL(ac_cv_posix_semaphores_enabled,
-AC_TRY_RUN([
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <semaphore.h>
-#include <sys/stat.h>
-
-int main(void) {
-  sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
-  if (a == SEM_FAILED) {
-    perror("sem_open");
-    return 1;
-  }
-  sem_close(a);
-  sem_unlink("/autoconf");
-  return 0;
-}
-], ac_cv_posix_semaphores_enabled=yes,
-   ac_cv_posix_semaphores_enabled=no,
-   ac_cv_posix_semaphores_enabled=yes)
-)
-AC_MSG_RESULT($ac_cv_posix_semaphores_enabled)
-if test $ac_cv_posix_semaphores_enabled = no
-then
-  AC_DEFINE(POSIX_SEMAPHORES_NOT_ENABLED, 1,
-            [Define if POSIX semaphores aren't enabled on your system])
-fi
-
-# Multiprocessing check for broken sem_getvalue
-AC_MSG_CHECKING(for broken sem_getvalue)
-AC_TRY_RUN([
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <semaphore.h>
-#include <sys/stat.h>
-
-int main(void){
-  sem_t *a = sem_open("/autocftw", O_CREAT, S_IRUSR|S_IWUSR, 0);
-  int count;
-  int res;
-  if(a==SEM_FAILED){
-    perror("sem_open");
-    return 1;
-
-  }
-  res = sem_getvalue(a, &count);
-  sem_close(a);
-  sem_unlink("/autocftw");
-  return res==-1 ? 1 : 0;
-}
-]
-,AC_MSG_RESULT(no),
- AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_BROKEN_SEM_GETVALUE, 1, define to 1 if your sem_getvalue is broken.)
-)
-
-# determine what size digit to use for Python's longs
-AC_MSG_CHECKING([digit size for Python's longs])
-AC_ARG_ENABLE(big-digits,
-AC_HELP_STRING([--enable-big-digits@<:@=BITS@:>@],[use big digits for Python longs [[BITS=30]]]),
-[case $enable_big_digits in
-yes)
-  enable_big_digits=30 ;;
-no)
-  enable_big_digits=15 ;;
-[15|30])
-  ;;
-*)
-  AC_MSG_ERROR([bad value $enable_big_digits for --enable-big-digits; value should be 15 or 30]) ;;
-esac
-AC_MSG_RESULT($enable_big_digits)
-AC_DEFINE_UNQUOTED(PYLONG_BITS_IN_DIGIT, $enable_big_digits, [Define as the preferred size in bits of long digits])
-],
-[AC_MSG_RESULT(no value specified)])
-
-# check for wchar.h
-AC_CHECK_HEADER(wchar.h, [
-  AC_DEFINE(HAVE_WCHAR_H, 1,
-  [Define if the compiler provides a wchar.h header file.])
-  wchar_h="yes"
-],
-wchar_h="no"
-)
-
-# determine wchar_t size
-if test "$wchar_h" = yes
-then
-  AC_CHECK_SIZEOF(wchar_t, 4, [#include <wchar.h>])
-fi
-
-AC_MSG_CHECKING(for UCS-4 tcl)
-have_ucs4_tcl=no
-AC_TRY_COMPILE([
-#include <tcl.h>
-#if TCL_UTF_MAX != 6
-# error "NOT UCS4_TCL"
-#endif], [], [
-  AC_DEFINE(HAVE_UCS4_TCL, 1, [Define this if you have tcl and TCL_UTF_MAX==6])
-  have_ucs4_tcl=yes
-])
-AC_MSG_RESULT($have_ucs4_tcl)
-
-# check whether wchar_t is signed or not
-if test "$wchar_h" = yes
-then
-  # check whether wchar_t is signed or not
-  AC_MSG_CHECKING(whether wchar_t is signed)
-  AC_CACHE_VAL(ac_cv_wchar_t_signed, [
-  AC_TRY_RUN([
-  #include <wchar.h>
-  int main()
-  {
-	/* Success: exit code 0 */
-        exit((((wchar_t) -1) < ((wchar_t) 0)) ? 0 : 1);
-  }
-  ],
-  ac_cv_wchar_t_signed=yes,
-  ac_cv_wchar_t_signed=no,
-  ac_cv_wchar_t_signed=yes)])
-  AC_MSG_RESULT($ac_cv_wchar_t_signed)
-fi
-
-AC_MSG_CHECKING(what type to use for str)
-AC_ARG_WITH(wide-unicode,
-            AC_HELP_STRING(--with-wide-unicode, Use 4-byte Unicode characters (default is 2 bytes)),
-[
-if test "$withval" != no
-then unicode_size="4"
-else unicode_size="2"
-fi
-],
-[
-case "$have_ucs4_tcl" in
-  yes) unicode_size="4" ;;
-  *)   unicode_size="2" ;;
-esac
-])
-
-AH_TEMPLATE(Py_UNICODE_SIZE,
-  [Define as the size of the unicode type.])
-case "$unicode_size" in
-  4) AC_DEFINE(Py_UNICODE_SIZE, 4) ;;
-  *) AC_DEFINE(Py_UNICODE_SIZE, 2) ;;
-esac
-
-AH_TEMPLATE(PY_UNICODE_TYPE,
-  [Define as the integral type used for Unicode representation.])
-
-# wchar_t is only usable if it maps to an unsigned type
-if test "$unicode_size" = "$ac_cv_sizeof_wchar_t" \
-          -a "$ac_cv_wchar_t_signed" = "no"
-then
-  PY_UNICODE_TYPE="wchar_t"
-  AC_DEFINE(HAVE_USABLE_WCHAR_T, 1,
-  [Define if you have a useable wchar_t type defined in wchar.h; useable
-   means wchar_t must be an unsigned type with at least 16 bits. (see
-   Include/unicodeobject.h).])
-  AC_DEFINE(PY_UNICODE_TYPE,wchar_t)
-elif test "$ac_cv_sizeof_short" = "$unicode_size"
-then
-     PY_UNICODE_TYPE="unsigned short"
-     AC_DEFINE(PY_UNICODE_TYPE,unsigned short)
-elif test "$ac_cv_sizeof_long" = "$unicode_size"
-then
-     PY_UNICODE_TYPE="unsigned long"
-     AC_DEFINE(PY_UNICODE_TYPE,unsigned long)
-else
-     PY_UNICODE_TYPE="no type found"
-fi
-AC_MSG_RESULT($PY_UNICODE_TYPE)
-
-# check for endianness
-AC_C_BIGENDIAN
-
-# Check whether right shifting a negative integer extends the sign bit
-# or fills with zeros (like the Cray J90, according to Tim Peters).
-AC_MSG_CHECKING(whether right shift extends the sign bit)
-AC_CACHE_VAL(ac_cv_rshift_extends_sign, [
-AC_TRY_RUN([
-int main()
-{
-	exit(((-1)>>3 == -1) ? 0 : 1);
-}
-],
-ac_cv_rshift_extends_sign=yes,
-ac_cv_rshift_extends_sign=no,
-ac_cv_rshift_extends_sign=yes)])
-AC_MSG_RESULT($ac_cv_rshift_extends_sign)
-if test "$ac_cv_rshift_extends_sign" = no
-then
-  AC_DEFINE(SIGNED_RIGHT_SHIFT_ZERO_FILLS, 1,
-  [Define if i>>j for signed int i does not extend the sign bit
-   when i < 0])
-fi
-
-# check for getc_unlocked and related locking functions
-AC_MSG_CHECKING(for getc_unlocked() and friends)
-AC_CACHE_VAL(ac_cv_have_getc_unlocked, [
-AC_TRY_LINK([#include <stdio.h>],[
-	FILE *f = fopen("/dev/null", "r");
-	flockfile(f);
-	getc_unlocked(f);
-	funlockfile(f);
-], ac_cv_have_getc_unlocked=yes, ac_cv_have_getc_unlocked=no)])
-AC_MSG_RESULT($ac_cv_have_getc_unlocked)
-if test "$ac_cv_have_getc_unlocked" = yes
-then
-  AC_DEFINE(HAVE_GETC_UNLOCKED, 1,
-  [Define this if you have flockfile(), getc_unlocked(), and funlockfile()])
-fi
-
-# check where readline lives
-# save the value of LIBS so we don't actually link Python with readline
-LIBS_no_readline=$LIBS
-
-# On some systems we need to link readline to a termcap compatible
-# library.  NOTE: Keep the precedence of listed libraries synchronised
-# with setup.py.
-py_cv_lib_readline=no
-AC_MSG_CHECKING([how to link readline libs])
-for py_libtermcap in "" ncursesw ncurses curses termcap; do
-  if test -z "$py_libtermcap"; then
-    READLINE_LIBS="-lreadline"
-  else
-    READLINE_LIBS="-lreadline -l$py_libtermcap"
-  fi
-  LIBS="$READLINE_LIBS $LIBS_no_readline"
-  AC_LINK_IFELSE(
-    [AC_LANG_CALL([],[readline])],
-    [py_cv_lib_readline=yes])
-  if test $py_cv_lib_readline = yes; then
-    break
-  fi
-done
-# Uncomment this line if you want to use READINE_LIBS in Makefile or scripts
-#AC_SUBST([READLINE_LIBS])
-if test $py_cv_lib_readline = no; then
-  AC_MSG_RESULT([none])
-else
-  AC_MSG_RESULT([$READLINE_LIBS])
-  AC_DEFINE(HAVE_LIBREADLINE, 1,
-    [Define if you have the readline library (-lreadline).])
-fi
-
-# check for readline 2.1
-AC_CHECK_LIB(readline, rl_callback_handler_install,
-	AC_DEFINE(HAVE_RL_CALLBACK, 1,
-        [Define if you have readline 2.1]), ,$READLINE_LIBS)
-
-# check for readline 2.2
-AC_TRY_CPP([#include <readline/readline.h>],
-have_readline=yes, have_readline=no)
-if test $have_readline = yes
-then
-  AC_EGREP_HEADER([extern int rl_completion_append_character;],
-  [readline/readline.h],
-  AC_DEFINE(HAVE_RL_COMPLETION_APPEND_CHARACTER, 1,
-  [Define if you have readline 2.2]), )
-  AC_EGREP_HEADER([extern int rl_completion_suppress_append;],
-  [readline/readline.h],
-  AC_DEFINE(HAVE_RL_COMPLETION_SUPPRESS_APPEND, 1,
-  [Define if you have rl_completion_suppress_append]), )
-fi
-
-# check for readline 4.0
-AC_CHECK_LIB(readline, rl_pre_input_hook,
-	AC_DEFINE(HAVE_RL_PRE_INPUT_HOOK, 1,
-        [Define if you have readline 4.0]), ,$READLINE_LIBS)
-
-# also in 4.0
-AC_CHECK_LIB(readline, rl_completion_display_matches_hook,
-	AC_DEFINE(HAVE_RL_COMPLETION_DISPLAY_MATCHES_HOOK, 1,
-        [Define if you have readline 4.0]), ,$READLINE_LIBS)
-
-# check for readline 4.2
-AC_CHECK_LIB(readline, rl_completion_matches,
-	AC_DEFINE(HAVE_RL_COMPLETION_MATCHES, 1,
-        [Define if you have readline 4.2]), ,$READLINE_LIBS)
-
-# also in readline 4.2
-AC_TRY_CPP([#include <readline/readline.h>],
-have_readline=yes, have_readline=no)
-if test $have_readline = yes
-then
-  AC_EGREP_HEADER([extern int rl_catch_signals;],
-  [readline/readline.h],
-  AC_DEFINE(HAVE_RL_CATCH_SIGNAL, 1,
-  [Define if you can turn off readline's signal handling.]), )
-fi
-
-# End of readline checks: restore LIBS
-LIBS=$LIBS_no_readline
-
-AC_MSG_CHECKING(for broken nice())
-AC_CACHE_VAL(ac_cv_broken_nice, [
-AC_TRY_RUN([
-int main()
-{
-	int val1 = nice(1);
-	if (val1 != -1 && val1 == nice(2))
-		exit(0);
-	exit(1);
-}
-],
-ac_cv_broken_nice=yes,
-ac_cv_broken_nice=no,
-ac_cv_broken_nice=no)])
-AC_MSG_RESULT($ac_cv_broken_nice)
-if test "$ac_cv_broken_nice" = yes
-then
-  AC_DEFINE(HAVE_BROKEN_NICE, 1,
-  [Define if nice() returns success/failure instead of the new priority.])
-fi
-
-AC_MSG_CHECKING(for broken poll())
-AC_TRY_RUN([
-#include <poll.h>
-
-int main (void)
-    {
-    struct pollfd poll_struct = { 42, POLLIN|POLLPRI|POLLOUT, 0 };
-
-    close (42);
-
-    int poll_test = poll (&poll_struct, 1, 0);
-
-    if (poll_test < 0)
-        {
-        exit(0);
-        }
-    else if (poll_test == 0 && poll_struct.revents != POLLNVAL)
-        {
-        exit(0);
-        }
-    else
-        {
-        exit(1);
-        }
-    }
-],
-ac_cv_broken_poll=yes,
-ac_cv_broken_poll=no,
-ac_cv_broken_poll=no)
-AC_MSG_RESULT($ac_cv_broken_poll)
-if test "$ac_cv_broken_poll" = yes
-then
-  AC_DEFINE(HAVE_BROKEN_POLL, 1,
-      [Define if poll() sets errno on invalid file descriptors.])
-fi
-
-# Before we can test tzset, we need to check if struct tm has a tm_zone
-# (which is not required by ISO C or UNIX spec) and/or if we support
-# tzname[]
-AC_STRUCT_TIMEZONE
-
-# check tzset(3) exists and works like we expect it to
-AC_MSG_CHECKING(for working tzset())
-AC_CACHE_VAL(ac_cv_working_tzset, [
-AC_TRY_RUN([
-#include <stdlib.h>
-#include <time.h>
-#include <string.h>
-
-#if HAVE_TZNAME
-extern char *tzname[];
-#endif
-
-int main()
-{
-	/* Note that we need to ensure that not only does tzset(3)
-	   do 'something' with localtime, but it works as documented
-	   in the library reference and as expected by the test suite.
-	   This includes making sure that tzname is set properly if
-	   tm->tm_zone does not exist since it is the alternative way
-	   of getting timezone info.
-
-	   Red Hat 6.2 doesn't understand the southern hemisphere
-	   after New Year's Day.
-	*/
-
-	time_t groundhogday = 1044144000; /* GMT-based */
-	time_t midyear = groundhogday + (365 * 24 * 3600 / 2);
-
-	putenv("TZ=UTC+0");
-	tzset();
-	if (localtime(&groundhogday)->tm_hour != 0)
-	    exit(1);
-#if HAVE_TZNAME
-	/* For UTC, tzname[1] is sometimes "", sometimes "   " */
-	if (strcmp(tzname[0], "UTC") ||
-		(tzname[1][0] != 0 && tzname[1][0] != ' '))
-	    exit(1);
-#endif
-
-	putenv("TZ=EST+5EDT,M4.1.0,M10.5.0");
-	tzset();
-	if (localtime(&groundhogday)->tm_hour != 19)
-	    exit(1);
-#if HAVE_TZNAME
-	if (strcmp(tzname[0], "EST") || strcmp(tzname[1], "EDT"))
-	    exit(1);
-#endif
-
-	putenv("TZ=AEST-10AEDT-11,M10.5.0,M3.5.0");
-	tzset();
-	if (localtime(&groundhogday)->tm_hour != 11)
-	    exit(1);
-#if HAVE_TZNAME
-	if (strcmp(tzname[0], "AEST") || strcmp(tzname[1], "AEDT"))
-	    exit(1);
-#endif
-
-#if HAVE_STRUCT_TM_TM_ZONE
-	if (strcmp(localtime(&groundhogday)->tm_zone, "AEDT"))
-	    exit(1);
-	if (strcmp(localtime(&midyear)->tm_zone, "AEST"))
-	    exit(1);
-#endif
-
-	exit(0);
-}
-],
-ac_cv_working_tzset=yes,
-ac_cv_working_tzset=no,
-ac_cv_working_tzset=no)])
-AC_MSG_RESULT($ac_cv_working_tzset)
-if test "$ac_cv_working_tzset" = yes
-then
-  AC_DEFINE(HAVE_WORKING_TZSET, 1,
-  [Define if tzset() actually switches the local timezone in a meaningful way.])
-fi
-
-# Look for subsecond timestamps in struct stat
-AC_MSG_CHECKING(for tv_nsec in struct stat)
-AC_CACHE_VAL(ac_cv_stat_tv_nsec,
-AC_TRY_COMPILE([#include <sys/stat.h>], [
-struct stat st;
-st.st_mtim.tv_nsec = 1;
-],
-ac_cv_stat_tv_nsec=yes,
-ac_cv_stat_tv_nsec=no,
-ac_cv_stat_tv_nsec=no))
-AC_MSG_RESULT($ac_cv_stat_tv_nsec)
-if test "$ac_cv_stat_tv_nsec" = yes
-then
-  AC_DEFINE(HAVE_STAT_TV_NSEC, 1,
-  [Define if you have struct stat.st_mtim.tv_nsec])
-fi
-
-# Look for BSD style subsecond timestamps in struct stat
-AC_MSG_CHECKING(for tv_nsec2 in struct stat)
-AC_CACHE_VAL(ac_cv_stat_tv_nsec2,
-AC_TRY_COMPILE([#include <sys/stat.h>], [
-struct stat st;
-st.st_mtimespec.tv_nsec = 1;
-],
-ac_cv_stat_tv_nsec2=yes,
-ac_cv_stat_tv_nsec2=no,
-ac_cv_stat_tv_nsec2=no))
-AC_MSG_RESULT($ac_cv_stat_tv_nsec2)
-if test "$ac_cv_stat_tv_nsec2" = yes
-then
-  AC_DEFINE(HAVE_STAT_TV_NSEC2, 1,
-  [Define if you have struct stat.st_mtimensec])
-fi
-
-# On HP/UX 11.0, mvwdelch is a block with a return statement
-AC_MSG_CHECKING(whether mvwdelch is an expression)
-AC_CACHE_VAL(ac_cv_mvwdelch_is_expression,
-AC_TRY_COMPILE([#include <curses.h>], [
-  int rtn;
-  rtn = mvwdelch(0,0,0);
-], ac_cv_mvwdelch_is_expression=yes,
-   ac_cv_mvwdelch_is_expression=no,
-   ac_cv_mvwdelch_is_expression=yes))
-AC_MSG_RESULT($ac_cv_mvwdelch_is_expression)
-
-if test "$ac_cv_mvwdelch_is_expression" = yes
-then
-  AC_DEFINE(MVWDELCH_IS_EXPRESSION, 1,
-  [Define if mvwdelch in curses.h is an expression.])
-fi
-
-AC_MSG_CHECKING(whether WINDOW has _flags)
-AC_CACHE_VAL(ac_cv_window_has_flags,
-AC_TRY_COMPILE([#include <curses.h>], [
-  WINDOW *w;
-  w->_flags = 0;
-], ac_cv_window_has_flags=yes,
-   ac_cv_window_has_flags=no,
-   ac_cv_window_has_flags=no))
-AC_MSG_RESULT($ac_cv_window_has_flags)
-
-
-if test "$ac_cv_window_has_flags" = yes
-then
-  AC_DEFINE(WINDOW_HAS_FLAGS, 1,
-  [Define if WINDOW in curses.h offers a field _flags.])
-fi
-
-AC_MSG_CHECKING(for is_term_resized)
-AC_TRY_COMPILE([#include <curses.h>], void *x=is_term_resized,
-  AC_DEFINE(HAVE_CURSES_IS_TERM_RESIZED, 1, Define if you have the 'is_term_resized' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_MSG_CHECKING(for resize_term)
-AC_TRY_COMPILE([#include <curses.h>], void *x=resize_term,
-  AC_DEFINE(HAVE_CURSES_RESIZE_TERM, 1, Define if you have the 'resize_term' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_MSG_CHECKING(for resizeterm)
-AC_TRY_COMPILE([#include <curses.h>], void *x=resizeterm,
-  AC_DEFINE(HAVE_CURSES_RESIZETERM, 1, Define if you have the 'resizeterm' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
-
-AC_MSG_CHECKING(for /dev/ptmx)
-
-if test -r /dev/ptmx
-then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_DEV_PTMX, 1,
-  [Define if we have /dev/ptmx.])
-else
-  AC_MSG_RESULT(no)
-fi
-
-AC_MSG_CHECKING(for /dev/ptc)
-
-if test -r /dev/ptc
-then
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_DEV_PTC, 1,
-  [Define if we have /dev/ptc.])
-else
-  AC_MSG_RESULT(no)
-fi
-
-AC_MSG_CHECKING(for %zd printf() format support)
-AC_TRY_RUN([#include <stdio.h>
-#include <stddef.h>
-#include <string.h>
-
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#ifdef HAVE_SSIZE_T
-typedef ssize_t Py_ssize_t;
-#elif SIZEOF_VOID_P == SIZEOF_LONG
-typedef long Py_ssize_t;
-#else
-typedef int Py_ssize_t;
-#endif
-
-int main()
-{
-    char buffer[256];
-
-    if(sprintf(buffer, "%zd", (size_t)123) < 0)
-       	return 1;
-
-    if (strcmp(buffer, "123"))
-	return 1;
-
-    if (sprintf(buffer, "%zd", (Py_ssize_t)-123) < 0)
-       	return 1;
-
-    if (strcmp(buffer, "-123"))
-	return 1;
-
-    return 0;
-}],
-[AC_MSG_RESULT(yes)
- AC_DEFINE(PY_FORMAT_SIZE_T, "z", [Define to printf format modifier for Py_ssize_t])],
- AC_MSG_RESULT(no))
-
-AC_CHECK_TYPE(socklen_t,,
-  AC_DEFINE(socklen_t,int,
-            Define to `int' if <sys/socket.h> does not define.),[
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-])
-
-AC_MSG_CHECKING(for broken mbstowcs)
-AC_TRY_RUN([
-#include<stdlib.h>
-int main() {
-    size_t len = -1;
-    const char *str = "text";
-    len = mbstowcs(NULL, str, 0);
-    return (len != 4);
-}
-],
-ac_cv_broken_mbstowcs=no,
-ac_cv_broken_mbstowcs=yes,
-ac_cv_broken_mbstowcs=no)
-AC_MSG_RESULT($ac_cv_broken_mbstowcs)
-if test "$ac_cv_broken_mbstowcs" = yes
-then
-  AC_DEFINE(HAVE_BROKEN_MBSTOWCS, 1,
-  [Define if mbstowcs(NULL, "text", 0) does not return the number of
-   wide chars that would be converted.])
-fi
-
-# Check for --with-computed-gotos
-AC_MSG_CHECKING(for --with-computed-gotos)
-AC_ARG_WITH(computed-gotos,
-            AC_HELP_STRING(--with-computed-gotos,
-                           Use computed gotos / threaded dispatch in evaluation loop (not available on all compilers)),
-[
-if test "$withval" != no
-then
-  AC_DEFINE(USE_COMPUTED_GOTOS, 1,
-  [Define if you want to use computed gotos in ceval.c.])
-  AC_MSG_RESULT(yes)
-else AC_MSG_RESULT(no)
-fi],
-[AC_MSG_RESULT(no)])
-
-if test $ac_sys_system = Darwin
-then
-	LIBS="$LIBS -framework CoreFoundation"
-fi
-
-
-
-AC_SUBST(THREADHEADERS)
-
-for h in `(cd $srcdir;echo Python/thread_*.h)`
-do
-  THREADHEADERS="$THREADHEADERS \$(srcdir)/$h"
-done
-
-AC_SUBST(SRCDIRS)
-SRCDIRS="Parser Grammar Objects Python Modules Mac"
-AC_MSG_CHECKING(for build directories)
-for dir in $SRCDIRS; do
-    if test ! -d $dir; then
-        mkdir $dir
-    fi
-done
-AC_MSG_RESULT(done)
-
-# generate output files
-AC_CONFIG_FILES(Makefile.pre Modules/Setup.config Misc/python.pc)
-AC_CONFIG_FILES([Modules/ld_so_aix], [chmod +x Modules/ld_so_aix])
-AC_OUTPUT
-
-echo "creating Modules/Setup"
-if test ! -f Modules/Setup
-then
-	cp $srcdir/Modules/Setup.dist Modules/Setup
-fi
-
-echo "creating Modules/Setup.local"
-if test ! -f Modules/Setup.local
-then
-	echo "# Edit this file for local setup changes" >Modules/Setup.local
-fi
-
-echo "creating Makefile"
-$SHELL $srcdir/Modules/makesetup -c $srcdir/Modules/config.c.in \
-			-s Modules Modules/Setup.config \
-			Modules/Setup.local Modules/Setup
-mv config.c Modules
--- a/pyconfig.h.in	Thu Mar 15 13:57:27 2012 -0500
+++ b/pyconfig.h.in	Thu Mar 15 13:57:38 2012 -0500
@@ -1,4 +1,4 @@
-/* pyconfig.h.in.  Generated from configure.in by autoheader.  */
+/* pyconfig.h.in.  Generated from configure.ac by autoheader.  */


 #ifndef Py_PYCONFIG_H
@@ -1102,6 +1102,9 @@
 /* This must be defined on some systems to enable large file support. */
 #undef _LARGEFILE_SOURCE

+/* This must be defined on AIX systems to enable large file support. */
+#undef _LARGE_FILES
+
 /* Define to 1 if on MINIX. */
 #undef _MINIX