Don't accidentally and silently accept C++11 attributes in decl-specifier-seqs
in C++98.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175879 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 8ac3c50..6ab1540 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -2197,7 +2197,7 @@
 
     case tok::l_square:
     case tok::kw_alignas:
-      if (!isCXX11AttributeSpecifier())
+      if (!getLangOpts().CPlusPlus11 || !isCXX11AttributeSpecifier())
         goto DoneWithDeclSpec;
 
       ProhibitAttributes(attrs);