updated for version 7.3.012

Problem:    Problems building with MingW.
Solution:   Adjust the MingW makefiles. (Jon)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    12,
 /**/
     11,
 /**/