--- setuptools-40.2.0/launcher.c.orig	2018-08-27 00:31:49.470981800 -0400
+++ setuptools-40.2.0/launcher.c	2018-08-27 00:35:03.568692800 -0400
@@ -369,7 +372,11 @@ int run(int argc, char **argv, int is_gu
 
     if (is_gui) {
         /* Use exec, we don't need to wait for the GUI to finish */
+#ifdef __MINGW32__
+        _execv(ptr, (const char * const *)(newargs));
+#else
         execv(ptr, (const char * const *)(newargs));
+#endif
         return fail("Could not exec %s", ptr);   /* shouldn't get here! */
     }