From b6ef6f69a9afc979640a5f9883f799de1364bff7 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Mon, 10 Dec 2018 16:06:18 +0100
Subject: [PATCH] bpo-31374: expat doesn't include <pyconfig.h> on Windows
 (GH-11079)

---
 Modules/expat/xmltok.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Modules/expat/xmltok.c b/Modules/expat/xmltok.c
index fa35de71324..6371a350dad 100644
--- a/Modules/expat/xmltok.c
+++ b/Modules/expat/xmltok.c
@@ -30,7 +30,9 @@
    USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
-#include <pyconfig.h>
+#if !defined(_WIN32) && defined(HAVE_EXPAT_CONFIG_H)
+#  include <pyconfig.h>
+#endif
 #include <stddef.h>
 #include <string.h>  /* memcpy */