From a6df1f7be1948bf97806ac5948ebbaf1c6ca354b Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <sezeroz@gmail.com>
Date: Wed, 1 Dec 2021 01:50:10 +0300
Subject: [PATCH] libtool upgrade to 2.4.6 - 13/n: add mingw to systems not
 needing libm.

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=46559
---
 acinclude/libtool.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/acinclude/libtool.m4 b/acinclude/libtool.m4
index 027d08e8b..224bb68e1 100644
--- a/acinclude/libtool.m4
+++ b/acinclude/libtool.m4
@@ -3845,7 +3845,7 @@ AC_DEFUN([LT_LIB_M],
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 LIBM=
 case $host in
-*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-mingw* | *-*-pw32* | *-*-darwin*)
   # These system don't have libm, or don't need it
   ;;
 *-ncr-sysv4.3*)