patch 7.4.1067

Problem:    Can't build with MingW and Python on MS-Windows.
Solution:   Move the build flags to CFLAGS.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1067,
 /**/
     1066,
 /**/