From 6a88e7463e9f759121b109be16cd4bd911355c86 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sat, 30 Nov 2019 17:37:56 +0100
Subject: build: require at least GL 2.0 headers for GLX

The previous hack for fixing #7201 requires this, but it wasn't checked.
It's easy to check, so do it. (Yes, we could just have required OpenGL
3.2 headers and skipped the earlier fix.)

For #7201.
---
 waftools/fragments/gl_x11.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'waftools/fragments')

diff --git a/waftools/fragments/gl_x11.c b/waftools/fragments/gl_x11.c
index ff11f551b2..7d879b6c0d 100644
--- a/waftools/fragments/gl_x11.c
+++ b/waftools/fragments/gl_x11.c
@@ -2,6 +2,10 @@
 #include <GL/glx.h>
 #include <stddef.h>
 
+#ifndef GL_VERSION_2_0
+#error "At least GL 2.0 headers needed."
+#endif
+
 int main(int argc, char *argv[]) {
   glXCreateContext(NULL, NULL, NULL, True);
   glXQueryExtensionsString(NULL, 0);
-- 
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