[LyX/2.3-staging] Fix packaging for mingw-64

[Georg Baum]

commit a289d50a3f46d2245f54099e7b33c900be4193fc
Author: Georg Baum <b...@lyx.org>
Date:   Thu May 5 12:46:59 2016 +0200

    Fix packaging for mingw-64
    
    See bug 10053 for details. Without this, the package is only set correctly
    for 32bit mingw.
    Thanks Enrico for suggesting this fix and Shankar Giri Venkita Giri for
    testing it.

diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index 45b40e3..965c7ef 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -630,7 +630,7 @@ AC_ARG_WITH(packaging,
   [lyx_use_packaging="$withval"], [
   case $host in
     *-apple-darwin*) lyx_use_packaging=macosx ;;
-    *-pc-mingw32*) lyx_use_packaging=windows ;;
+    *-pc-mingw*) lyx_use_packaging=windows ;;
     *haiku*) lyx_use_packaging=haiku ;;
     *) lyx_use_packaging=posix ;;
   esac])