From 75c5a04e49920e5ae5a05fca2436cd71e0d8a0a2 Mon Sep 17 00:00:00 2001
From: Themaister <maister@archlinux.us>
Date: Sat, 11 May 2013 16:04:46 +0200
Subject: [PATCH] Fix GLES build.

GLES doesn't support glReadBuffer() ...
---
 gfx/gl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gfx/gl.c b/gfx/gl.c
index 9a9516feb5..b0b7a2602e 100644
--- a/gfx/gl.c
+++ b/gfx/gl.c
@@ -2056,7 +2056,7 @@ static bool gl_read_viewport(void *data, uint8_t *buffer)
 
 #ifdef HAVE_OPENGLES
    glPixelStorei(GL_PACK_ALIGNMENT, get_alignment(gl->vp.width * 3));
-   glReadBuffer(GL_FRONT);
+   // GLES doesn't support glReadBuffer ... Take a chance that it'll work out right.
    glReadPixels(gl->vp.x, gl->vp.y,
          gl->vp.width, gl->vp.height,
          GL_RGB, GL_UNSIGNED_BYTE, buffer);