patch 7.4.1031
Problem:    Can't build with Python interface using MingW.
Solution:   Update the Makefile. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index 79677a1..6b225b3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1031,
+/**/
     1030,
 /**/
     1029,