From fb952c399e1ba5435e8f76a34f609be5fd64f4eb Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Tue, 13 Dec 2016 09:58:50 -0800
Subject: [PATCH] Common: Fix gcc build on macOS

---
 src/common/file_util.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index b6161f2dc..c618495f7 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -40,9 +40,20 @@
 #endif
 
 #if defined(__APPLE__)
+// CFURL contains __attribute__ directives that gcc does not know how to parse, so we need to just
+// ignore them if we're not using clang. The macro is only used to prevent linking against
+// functions that don't exist on older versions of macOS, and the worst case scenario is a linker
+// error, so this is perfectly safe, just inconvenient.
+#ifndef __clang__
+#define availability(...)
+#endif
 #include <CoreFoundation/CFBundle.h>
 #include <CoreFoundation/CFString.h>
 #include <CoreFoundation/CFURL.h>
+#ifdef availability
+#undef availability
+#endif
+
 #endif
 
 #include <algorithm>