Include Python.h first. Fixes #530159.
diff --git a/Modules/pypcre.c b/Modules/pypcre.c
index c6a14ec..e0aa8d0 100644
--- a/Modules/pypcre.c
+++ b/Modules/pypcre.c
@@ -45,8 +45,8 @@
 
 
 #define FOR_PYTHON
-#include "pcre-int.h"
 #include "Python.h"
+#include "pcre-int.h"
 #include <ctype.h>
 #include "graminit.h"