From 9e3f1ef1ff153f2c27563c7dc82ca7b4ceef4e02 Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mailing-list@martin-whitaker.me.uk>
Date: Tue, 5 May 2015 22:55:15 +0100
Subject: [PATCH] Only apply linker renaming of strtod() when using 32-bit
 MinGW.

mingw-w64 doesn't need this, and the 64-bit version doesn't support it.
---
 aclocal.m4 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 99bfe9516..f44632fe2 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -223,8 +223,9 @@ AC_SUBST(strip_dynamic)
 # -------------
 AC_DEFUN([AX_C99_STRTOD],
 [# On MinGW we need to jump through hoops to get a C99 compliant strtod().
+ # mingw-w64 doesn't need this, and the 64-bit version doesn't support it.
 case "${host}" in
-    *-*-mingw*)
+    *-*-mingw32)
         LDFLAGS+=" -Wl,--undefined=___strtod,--wrap,strtod,--defsym,___wrap_strtod=___strtod"
         ;;
 esac