From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 26 Mar 2022 01:42:46 +0000 (-0700)
Subject: lib/glcomp: silence deprecation warnings
X-Git-Tag: 4.0.0~150^2~5
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=003c5666ca36cd8316fe351c9a9e68da7684c3d0;p=graphviz

lib/glcomp: silence deprecation warnings

Warnings about OpenGL function usage fail the CMake build when Smyrna is enabled
on macOS.

Gitlab: related to #1836, #1854
---

diff --git a/lib/glcomp/opengl.h b/lib/glcomp/opengl.h
index 66003eaee..40290fc37 100644
--- a/lib/glcomp/opengl.h
+++ b/lib/glcomp/opengl.h
@@ -8,8 +8,14 @@
 #endif
 
 #ifdef __APPLE__
+
 #include <OpenGL/gl.h>
 #include <OpenGL/glu.h>
+
+// Apple considers OpenGL deprecated. So silence Clang’s warnings about our
+// use of it.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 #else
 #include <GL/gl.h>
 #include <GL/glu.h>