From dcf30025c3e3d43140a687240433de1920adf8b0 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Mon, 11 May 2015 12:24:43 +0200
Subject: [PATCH] ui: use libexpoxy

libepoxy does the opengl extension handling for us.

It also is helpful for trouble-shooting as it prints nice error messages
instead of silently failing or segfaulting in case we do something
wrong, like using gl commands not supported by the current context.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
---
 configure            | 4 ++--
 include/ui/console.h | 3 +--
 include/ui/shader.h  | 5 +----
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/configure b/configure
index b707429625..ac3729673f 100755
--- a/configure
+++ b/configure
@@ -3166,14 +3166,14 @@ else
 fi
 
 if test "$opengl" != "no" ; then
-  opengl_pkgs="gl glesv2"
+  opengl_pkgs="gl glesv2 epoxy"
   if $pkg_config $opengl_pkgs x11 && test "$have_glx" = "yes"; then
     opengl_cflags="$($pkg_config --cflags $opengl_pkgs) $x11_cflags"
     opengl_libs="$($pkg_config --libs $opengl_pkgs) $x11_libs"
     opengl=yes
   else
     if test "$opengl" = "yes" ; then
-      feature_not_found "opengl" "Install GL devel (e.g. MESA)"
+      feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
     fi
     opengl_cflags=""
     opengl_libs=""
diff --git a/include/ui/console.h b/include/ui/console.h
index e8b3a9ea8d..383dec24ff 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -10,8 +10,7 @@
 #include "qapi/error.h"
 
 #ifdef CONFIG_OPENGL
-# include <GLES2/gl2.h>
-# include <GLES2/gl2ext.h>
+# include <epoxy/gl.h>
 #endif
 
 /* keyboard/mouse support */
diff --git a/include/ui/shader.h b/include/ui/shader.h
index 1ff926c9e1..992cde6a80 100644
--- a/include/ui/shader.h
+++ b/include/ui/shader.h
@@ -1,7 +1,4 @@
-#ifdef CONFIG_OPENGL
-# include <GLES2/gl2.h>
-# include <GLES2/gl2ext.h>
-#endif
+#include <epoxy/gl.h>
 
 void qemu_gl_run_texture_blit(GLint texture_blit_prog);