| include(Compiler/GNU) |
| __compiler_gnu(CXX) |
| __compiler_gnu_cxx_standards(CXX) |
| |
| |
| if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER) |
| AND CMAKE_GENERATOR MATCHES "Makefiles|WMake" |
| AND CMAKE_DEPFILE_FLAGS_CXX) |
| # dependencies are computed by the compiler itself |
| set(CMAKE_CXX_DEPFILE_FORMAT gcc) |
| set(CMAKE_CXX_DEPENDS_USE_COMPILER TRUE) |
| endif() |
| |
| set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++) |
| |
| if (WIN32) |
| if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6) |
| set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fno-keep-inline-dllexport") |
| endif() |
| else() |
| if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0) |
| set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden") |
| endif() |
| endif() |
| |
| __compiler_check_default_language_standard(CXX 3.4 98 6.0 14 11.1 17) |
| |
| if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0) |
| string(CONCAT CMAKE_CXX_SCANDEP_SOURCE |
| "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -E -x c++ <SOURCE>" |
| " -MT <DYNDEP_FILE> -MD -MF <DEP_FILE>" |
| " -fmodules-ts -fdeps-file=<DYNDEP_FILE> -fdeps-target=<OBJECT> -fdeps-format=p1689r5" |
| " -o <PREPROCESSED_SOURCE>") |
| set(CMAKE_CXX_MODULE_MAP_FORMAT "gcc") |
| string(CONCAT CMAKE_CXX_MODULE_MAP_FLAG |
| # Turn on modules. |
| "-fmodules-ts" |
| # Read the module mapper file. |
| " -fmodule-mapper=<MODULE_MAP_FILE>" |
| # Make sure dependency tracking is enabled (missing from `try_*`). |
| " -MD" |
| # Suppress `CXX_MODULES +=` from generated depfile snippets. |
| " -fdeps-format=p1689r5" |
| # Force C++ as a language. |
| " -x c++") |
| set(CMAKE_CXX_MODULE_BMI_ONLY_FLAG "-fmodule-only") |
| endif() |