From bb4cc0ffe8bad221cdc5efe50a12356042b0f9d8 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Sat, 5 Nov 2022 05:01:56 +0100
Subject: Wayland + configure: take care of HAVE_GLXGETPROCADDRESSARB

---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 06e82b8ab..9c36213c4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1027,7 +1027,9 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
              AC_DEFINE([HAVE_GL_GLU_H])
              GLLIBS="$($PKGCONFIG --libs glu) $GLLIBS"
           ])
-           GLWLDEMO="egl"
+          AC_CHECK_LIB([GL], [glXGetProcAddressARB], [AC_DEFINE([HAVE_GLXGETPROCADDRESSARB])
+             ],, [-lm])
+          GLWLDEMO="egl"
       ], [
           LINKFLTKGL=""
           GLLIBNAME=""
-- 
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