[libcxx] r180683 - GCC doesn't support __has_attribute.

[Joerg Sonnenberger]

Author: joerg
Date: Sat Apr 27 15:51:42 2013
New Revision: 180683

URL: http://llvm.org/viewvc/llvm-project?rev=180683&view=rev
Log:
GCC doesn't support __has_attribute.

Modified:
    libcxx/trunk/include/__config

Modified: libcxx/trunk/include/__config
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/__config?rev=180683&r1=180682&r2=180683&view=diff
==============================================================================
--- libcxx/trunk/include/__config (original)
+++ libcxx/trunk/include/__config Sat Apr 27 15:51:42 2013
@@ -135,6 +135,10 @@
 
 #endif // _WIN32
 
+#ifndef __has_attribute
+#define __has_attribute(__x) 0
+#endif
+
 #ifndef _LIBCPP_HIDDEN
 #define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
 #endif