Add the Solaris support directory to the header search when using libc++.

Unconditionally define __C99FEATURES__ when using C++ on Solaris.  This is a
(hopefully temporary) work around for libc++ exposing C99-but-not-C++98
features in C++98 mode.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151889 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index b6ccce3..ac8c355 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -498,7 +498,7 @@
       Builder.defineMacro("_XOPEN_SOURCE", "600");
     else
       Builder.defineMacro("_XOPEN_SOURCE", "500");
-    if (Opts.CPlusPlus0x)
+    if (Opts.CPlusPlus)
       Builder.defineMacro("__C99FEATURES__");
     Builder.defineMacro("_LARGEFILE_SOURCE");
     Builder.defineMacro("_LARGEFILE64_SOURCE");