Fix breakage from patch 1471883 (r45800 & r45808) on OSF/1.
The problem was that pyconfig.h was being included before some system headers
which caused redefinitions and other breakage. This moves system headers
after expat_config.h which includes pyconfig.h.
diff --git a/Modules/expat/xmlparse.c b/Modules/expat/xmlparse.c
index 3372bc9..42d95b7 100644
--- a/Modules/expat/xmlparse.c
+++ b/Modules/expat/xmlparse.c
@@ -2,10 +2,6 @@
See the file COPYING for copying permission.
*/
-#include <stddef.h>
-#include <string.h> /* memset(), memcpy() */
-#include <assert.h>
-
#define XML_BUILDING_EXPAT 1
#ifdef COMPILED_FROM_DSP
@@ -16,6 +12,10 @@
#include <expat_config.h>
#endif /* ndef COMPILED_FROM_DSP */
+#include <stddef.h>
+#include <string.h> /* memset(), memcpy() */
+#include <assert.h>
+
#include "expat.h"
#ifdef XML_UNICODE