Exclude based on __APPLE__

Summary: This was showing up on a Linux compile to my sadness.

Reviewed By: francis-ma

Differential Revision: D2876010

fb-gh-sync-id: f638d593712c0aeb50177d96aaacb26575820359

diff --git a/folly/Portability.h b/folly/Portability.h
index 0e9c471b1f13ff1bf7fc55f03cbcafb743df80fe..41c598208c446eb80d3b233c7e8f64972fec4d6b 100644 (file)
--- a/folly/Portability.h
+++ b/folly/Portability.h
@@ -231,7 +231,7 @@ namespace std { typedef ::max_align_t max_align_t; }
 # error cannot define platform specific thread local storage
 #endif
 
-#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
+#if defined(__APPLE__) && (TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE)
 #undef FOLLY_TLS
 #endif