2010-03-17 14:00:29 +02:00
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include(Compiler/GNU)
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__compiler_gnu(CXX)
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2024-07-09 14:46:46 +02:00
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__compiler_gnu_cxx_standards(CXX)
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2013-11-03 12:27:13 +02:00
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2021-09-14 00:13:48 +02:00
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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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AND CMAKE_DEPFILE_FLAGS_CXX)
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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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set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
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2013-11-03 12:27:13 +02:00
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if (WIN32)
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if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
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set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fno-keep-inline-dllexport")
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endif()
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else()
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2017-04-14 19:02:05 +02:00
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if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
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2013-11-03 12:27:13 +02:00
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set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
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endif()
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endif()
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2015-04-27 22:25:09 +02:00
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2021-09-14 00:13:48 +02:00
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__compiler_check_default_language_standard(CXX 3.4 98 6.0 14 11.1 17)
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2023-12-07 09:12:54 +01:00
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0)
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string(CONCAT CMAKE_CXX_SCANDEP_SOURCE
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"<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E -x c++ <SOURCE>"
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" -MT <DYNDEP_FILE> -MD -MF <DEP_FILE>"
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" -fmodules-ts -fdeps-file=<DYNDEP_FILE> -fdeps-target=<OBJECT> -fdeps-format=p1689r5"
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" -o <PREPROCESSED_SOURCE>")
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set(CMAKE_CXX_MODULE_MAP_FORMAT "gcc")
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string(CONCAT CMAKE_CXX_MODULE_MAP_FLAG
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# Turn on modules.
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"-fmodules-ts"
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# Read the module mapper file.
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" -fmodule-mapper=<MODULE_MAP_FILE>"
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# Make sure dependency tracking is enabled (missing from `try_*`).
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" -MD"
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# Suppress `CXX_MODULES +=` from generated depfile snippets.
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" -fdeps-format=p1689r5"
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# Force C++ as a language.
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" -x c++")
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set(CMAKE_CXX_MODULE_BMI_ONLY_FLAG "-fmodule-only")
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endif()
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