Avoid undefined macro warning for __GXX_EXPERIMENTAL_CXX0X__.

The GCC use of this is already correct.

Change-Id: I28650196c7a325b552117fe2f2014ad7d6b365c2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index 3f51f8c..e2dd16f 100644 (file)
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -511,7 +511,7 @@
 #    define QT_NO_RTTI
 #  endif
 /* C++11 features, see http://clang.llvm.org/cxx_status.html */
-#  if __cplusplus >= 201103L || __GXX_EXPERIMENTAL_CXX0X__
+#  if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
 #    if ((__clang_major__ * 100) + __clang_minor__) >= 209 /* since clang 2.9 */
 #      define Q_COMPILER_AUTO_TYPE
 #      define Q_COMPILER_DECLTYPE