diff options
Diffstat (limited to 'src/corelib/global/qcompilerdetection.h')
| -rw-r--r-- | src/corelib/global/qcompilerdetection.h | 66 |
1 files changed, 47 insertions, 19 deletions
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h index 8ac84599f2..ee396409d8 100644 --- a/src/corelib/global/qcompilerdetection.h +++ b/src/corelib/global/qcompilerdetection.h @@ -78,7 +78,7 @@ # define Q_NO_USING_KEYWORD #elif defined(_MSC_VER) -# define Q_CC_MSVC +# define Q_CC_MSVC (_MSC_VER) # define Q_CC_MSVC_NET # define Q_OUTOFLINE_TEMPLATE inline # if _MSC_VER < 1600 @@ -137,14 +137,14 @@ # endif #elif defined(__GNUC__) -# define Q_CC_GNU +# define Q_CC_GNU (__GNUC__ * 100 + __GNUC_MINOR__) # define Q_C_CALLBACKS # if defined(__MINGW32__) # define Q_CC_MINGW # endif # if defined(__INTEL_COMPILER) /* Intel C++ also masquerades as GCC */ -# define Q_CC_INTEL +# define Q_CC_INTEL (__INTEL_COMPILER) # define Q_ASSUME_IMPL(expr) __assume(expr) # define Q_UNREACHABLE_IMPL() __builtin_unreachable() # if __INTEL_COMPILER >= 1300 && !defined(__APPLE__) @@ -152,7 +152,26 @@ # endif # elif defined(__clang__) /* Clang also masquerades as GCC */ -# define Q_CC_CLANG +# if defined(__apple_build_version__) +# /* http://en.wikipedia.org/wiki/Xcode#Toolchain_Versions */ +# if __apple_build_version__ >= 600051 +# define Q_CC_CLANG 305 +# elif __apple_build_version__ >= 503038 +# define Q_CC_CLANG 304 +# elif __apple_build_version__ >= 500275 +# define Q_CC_CLANG 303 +# elif __apple_build_version__ >= 425024 +# define Q_CC_CLANG 302 +# elif __apple_build_version__ >= 318045 +# define Q_CC_CLANG 301 +# elif __apple_build_version__ >= 211101 +# define Q_CC_CLANG 300 +# else +# error "Unknown Apple Clang version" +# endif +# else +# define Q_CC_CLANG ((__clang_major__ * 100) + __clang_minor__) +# endif # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() # define Q_UNREACHABLE_IMPL() __builtin_unreachable() # if !defined(__has_extension) @@ -168,7 +187,7 @@ # endif # else /* Plain GCC */ -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405 +# if Q_CC_GNU >= 405 # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() # define Q_UNREACHABLE_IMPL() __builtin_unreachable() # define Q_DECL_DEPRECATED_X(text) __attribute__ ((__deprecated__(text))) @@ -202,7 +221,7 @@ # define QT_NO_ARM_EABI # endif # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403 && !defined(Q_CC_CLANG) +# if Q_CC_GNU >= 403 && !defined(Q_CC_CLANG) # define Q_ALLOC_SIZE(x) __attribute__((alloc_size(x))) # endif @@ -308,7 +327,7 @@ /* Using the `using' keyword avoids Intel C++ for Linux warnings */ # elif defined(__INTEL_COMPILER) -# define Q_CC_INTEL +# define Q_CC_INTEL (__INTEL_COMPILER) /* Uses CFront, make sure to read the manual how to tweak templates. */ # elif defined(__ghs) @@ -566,7 +585,7 @@ # endif // Variadic macros are supported for gnu++98, c++11, c99 ... since 2.9 -# if ((__clang_major__ * 100) + __clang_minor__) >= 209 +# if Q_CC_CLANG >= 209 # if !defined(__STRICT_ANSI__) || defined(__GXX_EXPERIMENTAL_CXX0X__) \ || (defined(__cplusplus) && (__cplusplus >= 201103L)) \ || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) @@ -581,7 +600,7 @@ # define Q_COMPILER_ALIGNAS # define Q_COMPILER_ALIGNOF # endif -# if 0 /* not implemented in clang yet */ +# if __has_feature(cxx_atomic) && __has_include(<atomic>) # define Q_COMPILER_ATOMICS # endif # if __has_feature(cxx_attributes) @@ -668,7 +687,7 @@ # define Q_COMPILER_VARIADIC_TEMPLATES # endif /* Features that have no __has_feature() check */ -# if ((__clang_major__ * 100) + __clang_minor__) >= 209 /* since clang 2.9 */ +# if Q_CC_CLANG >= 209 /* since clang 2.9 */ # define Q_COMPILER_EXTERN_TEMPLATES # endif # endif @@ -709,7 +728,7 @@ #if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) && !defined(Q_CC_CLANG) # define Q_COMPILER_RESTRICTED_VLA # define Q_COMPILER_THREADSAFE_STATICS -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403 +# if Q_CC_GNU >= 403 // GCC supports binary literals in C, C++98 and C++11 modes # define Q_COMPILER_BINARY_LITERALS # endif @@ -720,13 +739,13 @@ # define Q_COMPILER_VARIADIC_MACROS # endif # if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 403 +# if Q_CC_GNU >= 403 /* C++11 features supported in GCC 4.3: */ # define Q_COMPILER_DECLTYPE # define Q_COMPILER_RVALUE_REFS # define Q_COMPILER_STATIC_ASSERT # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 404 +# if Q_CC_GNU >= 404 /* C++11 features supported in GCC 4.4: */ # define Q_COMPILER_AUTO_FUNCTION # define Q_COMPILER_AUTO_TYPE @@ -735,7 +754,7 @@ # define Q_COMPILER_UNICODE_STRINGS # define Q_COMPILER_VARIADIC_TEMPLATES # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405 +# if Q_CC_GNU >= 405 /* C++11 features supported in GCC 4.5: */ # define Q_COMPILER_EXPLICIT_CONVERSIONS /* GCC 4.4 implements initializer_list but does not define typedefs required @@ -745,7 +764,7 @@ # define Q_COMPILER_RAW_STRINGS # define Q_COMPILER_CLASS_ENUM # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406 +# if Q_CC_GNU >= 406 /* Pre-4.6 compilers implement a non-final snapshot of N2346, hence default and delete * functions are supported only if they are public. Starting from 4.6, GCC handles * final version - the access modifier is not relevant. */ @@ -757,7 +776,7 @@ # define Q_COMPILER_UNRESTRICTED_UNIONS # define Q_COMPILER_RANGE_FOR # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407 +# if Q_CC_GNU >= 407 /* GCC 4.4 implemented <atomic> and std::atomic using its old intrinsics. * However, the implementation is incomplete for most platforms until GCC 4.7: * instead, std::atomic would use an external lock. Since we need an std::atomic @@ -773,20 +792,20 @@ # define Q_COMPILER_TEMPLATE_ALIAS # define Q_COMPILER_UDL # endif -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 +# if Q_CC_GNU >= 408 # define Q_COMPILER_ATTRIBUTES # define Q_COMPILER_ALIGNAS # define Q_COMPILER_ALIGNOF # define Q_COMPILER_INHERITING_CONSTRUCTORS # define Q_COMPILER_THREAD_LOCAL -# if (__GNUC__ * 100 + __GNUC_MINOR__) > 408 || __GNUC_PATCHLEVEL__ >= 1 +# if Q_CC_GNU > 408 || __GNUC_PATCHLEVEL__ >= 1 # define Q_COMPILER_REF_QUALIFIERS # endif # endif /* C++11 features are complete as of GCC 4.8.1 */ # endif # if __cplusplus > 201103L -# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 409 +# if Q_CC_GNU >= 409 /* C++1y features in GCC 4.9 - deprecated, do not update this list */ //# define Q_COMPILER_BINARY_LITERALS // already supported since GCC 4.3 as an extension # define Q_COMPILER_LAMBDA_CAPTURES @@ -880,6 +899,15 @@ # undef Q_COMPILER_INITIALIZER_LISTS # undef Q_COMPILER_RVALUE_REFS # undef Q_COMPILER_REF_QUALIFIERS +// Also disable <atomic>, since it's clearly not there +# undef Q_COMPILER_ATOMICS +# endif +# if defined(_LIBCPP_VERSION) +// libc++ uses __has_feature(cxx_atomic), so disable the feature if the compiler +// doesn't support it. That's required for the Intel compiler on OS X, for example. +# if !__has_feature(cxx_atomic) +# undef Q_COMPILER_ATOMICS +# endif # endif # if defined(Q_COMPILER_THREADSAFE_STATICS) && defined(Q_OS_MAC) // Mac OS X: Apple's low-level implementation of the C++ support library |