Protect use of alignas against older versions of clang

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@157764 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31 19:31:14 +00:00
parent 635ce1d127
commit cbdd0896d3
2 changed files with 16 additions and 14 deletions
--- a/include/__config
+++ b/include/__config
@@ -145,8 +145,10 @@
 #if defined(__clang__)

 #if __has_feature(cxx_alignas)
+#  define _ALIGNAS_TYPE(x) alignas(x)
 #  define _ALIGNAS(x) alignas(x)
 #else
+#  define _ALIGNAS_TYPE(x) __attribute__((__aligned__))
 #  define _ALIGNAS(x) __attribute__((__aligned__(x)))
 #endif