Include Python.h headers first in _isl.c

diff --git a/pypol/_isl.c b/pypol/_isl.c
index 7441d46..fe29ec5 100644 (file)
--- a/pypol/_isl.c
+++ b/pypol/_isl.c
@@ -1,6 +1,6 @@
+#include <Python.h>
 #include <stdlib.h>
 
-#include <Python.h>
 #include <isl/constraint.h>
 #include <isl/set.h>