From 19a292ecbaeef7819945347aa0f83dd2cef1432b Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Wed, 1 Jul 2015 18:15:47 -0500
Subject: [PATCH] Fix Apple share group query conditionals

---
 src/c_wrapper/gl_obj.cpp | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/c_wrapper/gl_obj.cpp b/src/c_wrapper/gl_obj.cpp
index db695237..ee4cdb2e 100644
--- a/src/c_wrapper/gl_obj.cpp
+++ b/src/c_wrapper/gl_obj.cpp
@@ -143,10 +143,16 @@ cl_context_properties
 get_apple_cgl_share_group()
 {
 #ifdef __APPLE__
-    CGLContextObj kCGLContext = CGLGetCurrentContext();
-    CGLShareGroupObj kCGLShareGroup = CGLGetShareGroup(kCGLContext);
-
-    return (cl_context_properties)kCGLShareGroup;
+    #ifdef HAVE_GL
+        CGLContextObj kCGLContext = CGLGetCurrentContext();
+        CGLShareGroupObj kCGLShareGroup = CGLGetShareGroup(kCGLContext);
+
+        return (cl_context_properties)kCGLShareGroup;
+    #else
+        throw clerror("get_apple_cgl_share_group unavailable: "
+            "GL interop not compiled",
+            CL_INVALID_VALUE);
+    #endif
 #else
     throw clerror("get_apple_cgl_share_group unavailable: non-Apple platform",
         CL_INVALID_VALUE);
-- 
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