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CMake/Modules/Compiler/AppleClang-CXX.cmake

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Don't load Clang-CXX from AppleClang-CXX. The Clang-CXX module is going to get version-specific checks, and the version system for AppleClang is not the same as Clang.
2013-11-11 23:35:52 +04:00
include(Compiler/Clang)
__compiler_clang(CXX)
Avoid if() quoted auto-dereference when checking for "MSVC" When testing CMAKE_<LANG>_COMPILER_ID values against "MSVC", do not allow the definition of the "MSVC" variable to be expanded.
2014-11-19 12:21:27 +03:00
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
Don't load Clang-CXX from AppleClang-CXX. The Clang-CXX module is going to get version-specific checks, and the version system for AppleClang is not the same as Clang.
2013-11-11 23:35:52 +04:00
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
endif()
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
Features: Record dialect flags for AppleClang 4.0+.
2015-01-11 18:38:10 +03:00
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
Features: Record dialect flags for AppleClang 4.0+.
2015-01-11 18:38:10 +03:00
endif()
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
AppleClang: Use modern C++14 standard flags for Apple Clang 6.1 The Apple Clang 6.1 compiler that comes with Xcode 6.3 is aware of the modern -std=c++14 and -std=gnu++14 flags, so use them instead of the "1y" flags. Suggested-by: darkapostle@rule506.net
2015-07-08 16:25:02 +03:00
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.1)
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14")
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
Features: Record dialect flags for AppleClang 4.0+.
2015-01-11 18:38:10 +03:00
# AppleClang 5.0 knows this flag, but does not set a __cplusplus macro greater than 201103L
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
endif()
Features: Populate CMAKE_<LANG>_STANDARD_DEFAULT only for supported compilers. If no compiler feature information is known for a given compiler version, do not set a language standard default either. The two settings must be recorded consistently.
2015-02-05 00:04:18 +03:00
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
Project: Don't require computed default dialect if compiler was forced. Commit 7235334a (Project: Determine default language dialect for the compiler., 2015-09-15) introduced a mechanism to determine the default dialect used for the running compiler. If conditions in the <CompilerId>-<Lang>.cmake file are such that compile features for that version of the compiler should be supported, the _DEFAULT_STANDARD is set to the computed value. However, the CMakeForceCompiler module allows users to bypass execution of the compiler by CMake. In that case, do not set the _DEFAULT_STANDARD variable at all, which effectively disables the compile-features where the module is used. No compile features have ever been recorded where the module is used so no functionality is lost.
2015-09-22 23:13:15 +03:00
if (NOT CMAKE_CXX_COMPILER_FORCED)
if (NOT CMAKE_CXX_STANDARD_COMPUTED_DEFAULT)
message(FATAL_ERROR "CMAKE_CXX_STANDARD_COMPUTED_DEFAULT should be set for ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) version ${CMAKE_CXX_COMPILER_VERSION}")
endif()
set(CMAKE_CXX_STANDARD_DEFAULT ${CMAKE_CXX_STANDARD_COMPUTED_DEFAULT})
Project: Determine default language dialect for the compiler. Use the __cplusplus and __STDC_VERSION__ macros to automatically determine the default dialect for the compiler while determining its id and version.
2015-09-15 20:42:26 +03:00
endif()
Features: Populate CMAKE_<LANG>_STANDARD_DEFAULT only for supported compilers. If no compiler feature information is known for a given compiler version, do not set a language standard default either. The two settings must be recorded consistently.
2015-02-05 00:04:18 +03:00
endif()
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
Project: Determine default language dialect for the compiler. Use the __cplusplus and __STDC_VERSION__ macros to automatically determine the default dialect for the compiler while determining its id and version.
2015-09-15 20:42:26 +03:00
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
macro(cmake_record_cxx_compile_features)
macro(_get_appleclang_features std_version list)
record_compiler_features(CXX "${std_version}" ${list})
endmacro()
Features: Ensure appropriate return value from feature test macros. GNU-CXX already has complex logic and sets the _result to 0 before tests which may set it to something else. Change the other modules to be consistent with that.
2015-01-12 23:43:48 +03:00
set(_result 0)
AppleClang: Remove redundant UNIX condition.
2015-02-05 00:03:49 +03:00
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
Features: Record for historical Xcode clang versions.
2015-01-09 22:18:26 +03:00
set(_result 0)
if(CMAKE_CXX14_STANDARD_COMPILE_OPTION)
_get_appleclang_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
endif()
Features: Record for AppleClang 5.1 Apple's Clang 5.1 already supports most of the C and C++ features CMake enumerates.
2014-11-13 00:48:17 +03:00
if (_result EQUAL 0)
_get_appleclang_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
endif()
if (_result EQUAL 0)
_get_appleclang_features(${CMAKE_CXX98_STANDARD_COMPILE_OPTION} CMAKE_CXX98_COMPILE_FEATURES)
endif()
endif()
endmacro()