bpo-31374: Include pyconfig.h earlier in expat (GH-11064)
Include <pyconfig.h> ealier in Modules/expat/xmltok.c to define
properly _POSIX_C_SOURCE. Python defines _POSIX_C_SOURCE as 200809L,
whereas <features.h> (included indirectly by <string.h>) defines
_POSIX_C_SOURCE as 199506L.
(cherry picked from commit cf247359d5b7082044eea1fa94b5211a172b1ff6)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
diff --git a/Modules/expat/xmltok.c b/Modules/expat/xmltok.c
index 6b415d8..fa35de7 100644
--- a/Modules/expat/xmltok.c
+++ b/Modules/expat/xmltok.c
@@ -30,6 +30,7 @@
USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <pyconfig.h>
#include <stddef.h>
#include <string.h> /* memcpy */