From c462635e88a835377c48497881747a0aa00ace2f Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Mon, 8 Jan 2018 10:19:19 +0000
Subject: MacOS configure --enable-x11: add needed compilation option under
 MacOS 10.13

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12626 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 122a668d4..bba8ba27e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -90,6 +90,10 @@ case $host_os in
 	if test x$enable_x11 = xyes; then
 		host_os_gui="X11"
 		OPTIM="-U__APPLE__ $OPTIM"
+    		macosversion=`sw_vers -productVersion | cut -d. -f2`
+		if  test $macosversion -ge "13" ; then
+	    		CXXFLAGS="$CXXFLAGS -mmacosx-version-min=10.8"
+		fi
 	fi
 	;;
    *)
-- 
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