Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
number of tests, all because of the codecs/_multibytecodecs issue described
here (it's not a Py3K issue, just something Py3K discovers):
http://mail.python.org/pipermail/python-dev/2006-April/064051.html

Hye-Shik Chang promised to look for a fix, so no need to fix it here. The
tests that are expected to break are:

test_codecencodings_cn
test_codecencodings_hk
test_codecencodings_jp
test_codecencodings_kr
test_codecencodings_tw
test_codecs
test_multibytecodec

This merge fixes an actual test failure (test_weakref) in this branch,
though, so I believe merging is the right thing to do anyway.
diff --git a/Modules/main.c b/Modules/main.c
index b3ce16e..7326a27 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -28,6 +28,10 @@
     "Type \"help\", \"copyright\", \"credits\" or \"license\" " \
     "for more information."
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* For Py_GetArgcArgv(); set by main() */
 static char **orig_argv;
 static int  orig_argc;
@@ -206,7 +210,7 @@
 			/* -c is the last option; following arguments
 			   that look like options are left for the
 			   command to interpret. */
-			command = malloc(strlen(_PyOS_optarg) + 2);
+			command = (char *)malloc(strlen(_PyOS_optarg) + 2);
 			if (command == NULL)
 				Py_FatalError(
 				   "not enough memory to copy -c argument");
@@ -219,7 +223,7 @@
 			/* -m is the last option; following arguments
 			   that look like options are left for the
 			   module to interpret. */
-			module = malloc(strlen(_PyOS_optarg) + 2);
+			module = (char *)malloc(strlen(_PyOS_optarg) + 2);
 			if (module == NULL)
 				Py_FatalError(
 				   "not enough memory to copy -m argument");
@@ -509,3 +513,8 @@
 	*argc = orig_argc;
 	*argv = orig_argv;
 }
+
+#ifdef __cplusplus
+}
+#endif
+