[gegl] Don't use AvailabilityMacros on OSX (bug 673969)

[Daniel Sabo <daniels src gnome org>]

commit 92d1e14df34558431275081d9fc5a914a2dc9096
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Tue Feb 4 07:48:33 2014 -0800

    Don't use AvailabilityMacros on OSX (bug 673969)
    
    These were inherited from the OSX system headers, but are meaningless
    for GEGL because all functions are loaded dynamically.

 gegl/opencl/cl_platform.h |   11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)
---
diff --git a/gegl/opencl/cl_platform.h b/gegl/opencl/cl_platform.h
index 05b2c30..fdbc7d9 100644
--- a/gegl/opencl/cl_platform.h
+++ b/gegl/opencl/cl_platform.h
@@ -26,11 +26,6 @@
 #ifndef __CL_PLATFORM_H
 #define __CL_PLATFORM_H
 
-#ifdef __APPLE__
-    /* Contains #defines for AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER below */
-    #include <AvailabilityMacros.h>
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -47,11 +42,11 @@ extern "C" {
 
 #ifdef __APPLE__
     #define CL_EXTENSION_WEAK_LINK                  __attribute__((weak_import))
-    #define CL_API_SUFFIX__VERSION_1_0              AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
-    #define CL_EXT_SUFFIX__VERSION_1_0              CL_EXTENSION_WEAK_LINK 
AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
+    #define CL_API_SUFFIX__VERSION_1_0
+    #define CL_EXT_SUFFIX__VERSION_1_0              CL_EXTENSION_WEAK_LINK
     #define CL_API_SUFFIX__VERSION_1_1              CL_EXTENSION_WEAK_LINK
     #define CL_EXT_SUFFIX__VERSION_1_1              CL_EXTENSION_WEAK_LINK
-    #define CL_EXT_SUFFIX__VERSION_1_0_DEPRECATED   CL_EXTENSION_WEAK_LINK 
AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
+    #define CL_EXT_SUFFIX__VERSION_1_0_DEPRECATED   CL_EXTENSION_WEAK_LINK
 #else
     #define CL_EXTENSION_WEAK_LINK
     #define CL_API_SUFFIX__VERSION_1_0