--- a/src/modules/filesystem/physfs/Filesystem.cpp	Sun Mar 17 03:30:36 2013 -0300
+++ b/src/modules/filesystem/physfs/Filesystem.cpp	Sun Mar 17 03:40:13 2013 -0300
@@ -319,7 +319,7 @@
 	return file.read(size);
 }
 
-void Filesystem::write(const char *filename, const void *data, int64 size)
+void Filesystem::write(const char *filename, const void *data, int64 size) const
 {
 	File file(filename);
 
@@ -330,6 +330,17 @@
 		throw love::Exception("Data could not be written.");
 }
 
+void Filesystem::append(const char *filename, const void *data, int64 size) const
+{
+	File file(filename);
+
+	file.open(File::APPEND);
+
+	// close() is called in the File destructor.
+	if (!file.write(data, size))
+		throw love::Exception("Data could not be written.");
+}
+
 int Filesystem::enumerate(lua_State *L)
 {
 	int n = lua_gettop(L);