From 2d213a306f611261d247d1520d3ef050c7f4ffea Mon Sep 17 00:00:00 2001
From: Thomas Van Lenten <thomasvl@google.com>
Date: Tue, 12 Jan 2016 10:02:48 -0500
Subject: Export unused symbols in category-only files for when they are used
 in static libs to avoid linker warnings

---
 Foundation/GTMObjC2Runtime.m | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Foundation/GTMObjC2Runtime.m')

diff --git a/Foundation/GTMObjC2Runtime.m b/Foundation/GTMObjC2Runtime.m
index e1af2bb..1475103 100644
--- a/Foundation/GTMObjC2Runtime.m
+++ b/Foundation/GTMObjC2Runtime.m
@@ -18,6 +18,10 @@
 
 #import "GTMObjC2Runtime.h"
 
+// Export a nonsense symbol to suppress a libtool warning when this is linked alone in a static lib.
+__attribute__((visibility("default"))) char GTMObjC2RuntimeExportToSuppressLibToolWarning = 0;
+
+
 #if GTM_MACOS_SDK && (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) && !__OBJC2__
 #import <objc/objc-runtime.h>
 #import <stdlib.h>
-- 
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