From c11e47b08a9ab9440690a68c442ba0bf4b874979 Mon Sep 17 00:00:00 2001
From: flyinghead <raphael.jean@gmail.com>
Date: Tue, 9 Oct 2018 19:27:55 +0200
Subject: [PATCH] Checking for core context returns an error in GL3

This error should be ignored.
Mac build fix
---
 gfx/drivers/gl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gfx/drivers/gl.c b/gfx/drivers/gl.c
index e20b01af24..50e6bd4095 100644
--- a/gfx/drivers/gl.c
+++ b/gfx/drivers/gl.c
@@ -1794,9 +1794,11 @@ static void *gl_init(const video_info_t *video,
       hwr->context_type = RETRO_HW_CONTEXT_OPENGL;
    }
 
+#ifdef GL_CONTEXT_PROFILE_MASK
    /* Check if we have a core context */
    GLint glflags = 0;
    glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &glflags);
+   while (glGetError() != GL_NO_ERROR);
 
    if (glflags & GL_CONTEXT_CORE_PROFILE_BIT)
    {
@@ -1822,6 +1824,7 @@ static void *gl_init(const video_info_t *video,
          goto error;
       }
    }
+#endif
 
    if (!renderchain_gl_init_first(&gl->renderchain_driver,
       &gl->renderchain_data))