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-rw-r--r--src/corelib/global/qcompilerdetection.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h
index eec8b5223b..e655aace32 100644
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@@ -937,8 +937,8 @@
// Older versions (QNX 650) do not support C++11 features
// _HAS_* macros are set to 1 by toolchains that actually include
// Dinkum C++11 libcpp.
-# if !__GLIBCXX__
-# if !_HAS_CPP0X
+# if !defined(__GLIBCXX__)
+# if !defined(_HAS_CPP0X) || !_HAS_CPP0X
// Disable C++11 features that depend on library support
# undef Q_COMPILER_INITIALIZER_LISTS
# undef Q_COMPILER_RVALUE_REFS
@@ -946,10 +946,10 @@
# undef Q_COMPILER_UNICODE_STRINGS
# undef Q_COMPILER_NOEXCEPT
# endif // !_HAS_CPP0X
-# if !_HAS_NULLPTR_T
+# if !defined(_HAS_NULLPTR_T) || !_HAS_NULLPTR_T
# undef Q_COMPILER_NULLPTR
# endif //!_HAS_NULLPTR_T
-# if !_HAS_CONSTEXPR
+# if !defined(_HAS_CONSTEXPR) || !_HAS_CONSTEXPR
// The libcpp is missing constexpr keywords on important functions like std::numeric_limits<>::min()
// Disable constexpr support on QNX even if the compiler supports it
# undef Q_COMPILER_CONSTEXPR