From 11ccb2051221b9f8d8ceb9932971b3138113ccce Mon Sep 17 00:00:00 2001
From: Frank Denis <github@pureftpd.org>
Date: Tue, 25 Nov 2014 12:19:08 -0800
Subject: [PATCH] If -fno-strict-overflow is available, don't add -fwrapv

---
 configure.ac | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index a5d693a8..6fa6725e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -161,9 +161,10 @@ AS_IF([test "$enable_pie" != "no"],[
   ])
 ])
 
-AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"])
 AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"])
-AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"])
+AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"], [
+  AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"])
+])
 
 LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS"
 LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION"