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https://github.com/Kitware/CMake.git
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48aac247e9
This change was originally made by commit74b1c9fc8e(Explicitly specify language flag when source LANGUAGE property is set, 2020-06-01, v3.19.0-rc1~722^2), but it was reverted by commit30aa715fac(Revert "specify language flag when source LANGUAGE property is set", 2020-11-19) to restore compatibility with pre-3.19 behavior. Implement the change again, but add policy CMP0119 to make this change while preserving compatibility with existing projects. Note that the `Compiler/{Clang,Intel,MSVC}-CXX` modules do not need to specify `-TP` for their MSVC-like variants because we already use the flag in `CMAKE_CXX_COMPILE_OBJECT`. Similarly for `Compiler/XL-CXX` and `Platform/Windows-Embarcadero`. Note also that this does not seem possible to implement for XL C. Even with `-qsourcetype=c`, `xlc` complains about an unknown suffix: `1501-218 (W) file /.../AltExtC.zzz contains an incorrect file suffix`. It returns non-zero even with `-qsuppress=1501-218`. Co-Author: Robert Maynard <robert.maynard@kitware.com> Fixes: #14516, #20716
105 lines
3.9 KiB
CMake
105 lines
3.9 KiB
CMake
include(Compiler/Intel)
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__compiler_intel(CXX)
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string(APPEND CMAKE_CXX_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
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string(APPEND CMAKE_CXX_FLAGS_RELEASE_INIT " -DNDEBUG")
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string(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT " -DNDEBUG")
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set(CMAKE_DEPFILE_FLAGS_CXX "-MD -MT <DEP_TARGET> -MF <DEP_FILE>")
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if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
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AND CMAKE_GENERATOR MATCHES "Makefiles|WMake")
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# dependencies are computed by the compiler itself
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set(CMAKE_CXX_DEPFILE_FORMAT gcc)
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set(CMAKE_CXX_DEPENDS_USE_COMPILER TRUE)
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endif()
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if("x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
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set(CMAKE_CXX_CLANG_TIDY_DRIVER_MODE "cl")
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.0)
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set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-Qstd=c++20")
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set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-Qstd=c++20")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0.0)
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-Qstd=c++17")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-Qstd=c++17")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16.0)
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-Qstd=c++14")
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-Qstd=c++14")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13.0)
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-Qstd=c++11")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-Qstd=c++11")
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elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-Qstd=c++0x")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-Qstd=c++0x")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
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set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
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endif()
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else()
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set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.0)
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set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++20")
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set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++20")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0.0)
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++17")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++17")
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endif()
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if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 17.0)
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set(CMAKE_CXX14_STANDARD__HAS_FULL_SUPPORT ON)
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0.2)
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14")
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elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0.0)
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
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endif()
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# Intel 15.0.2 accepts c++14 instead of c++1y, but not gnu++14
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# instead of gnu++1y. Intel 17.0.0 accepts gnu++14 too.
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if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 17.0)
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14")
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elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0.0)
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 15.0)
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set(CMAKE_CXX11_STANDARD__HAS_FULL_SUPPORT ON)
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13.0)
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
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elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
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endif()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
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set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
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set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
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set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
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endif()
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endif()
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__compiler_check_default_language_standard(CXX 12.1 98)
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set(CMAKE_CXX_CREATE_PREPROCESSED_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E <SOURCE> > <PREPROCESSED_SOURCE>")
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set(CMAKE_CXX_CREATE_ASSEMBLY_SOURCE "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -S <SOURCE> -o <ASSEMBLY_SOURCE>")
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