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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
function(cmake_determine_compile_features lang)
if(lang STREQUAL C AND COMMAND cmake_record_c_compile_features)
message(STATUS "Detecting ${lang} compile features")
set(CMAKE_C90_COMPILE_FEATURES)
set(CMAKE_C99_COMPILE_FEATURES)
set(CMAKE_C11_COMPILE_FEATURES)
include("${CMAKE_ROOT}/Modules/Internal/FeatureTesting.cmake")
cmake_record_c_compile_features()
if(NOT _result EQUAL 0)
message(STATUS "Detecting ${lang} compile features - failed")
return()
endif()
if (CMAKE_C99_COMPILE_FEATURES AND CMAKE_C11_COMPILE_FEATURES)
list(REMOVE_ITEM CMAKE_C11_COMPILE_FEATURES ${CMAKE_C99_COMPILE_FEATURES})
endif()
if (CMAKE_C90_COMPILE_FEATURES AND CMAKE_C99_COMPILE_FEATURES)
list(REMOVE_ITEM CMAKE_C99_COMPILE_FEATURES ${CMAKE_C90_COMPILE_FEATURES})
endif()
if(NOT CMAKE_C_COMPILE_FEATURES)
set(CMAKE_C_COMPILE_FEATURES
${CMAKE_C90_COMPILE_FEATURES}
${CMAKE_C99_COMPILE_FEATURES}
${CMAKE_C11_COMPILE_FEATURES}
)
endif()
set(CMAKE_C_COMPILE_FEATURES ${CMAKE_C_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_C90_COMPILE_FEATURES ${CMAKE_C90_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_C99_COMPILE_FEATURES ${CMAKE_C99_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_C11_COMPILE_FEATURES ${CMAKE_C11_COMPILE_FEATURES} PARENT_SCOPE)
message(STATUS "Detecting ${lang} compile features - done")
elseif(lang STREQUAL CXX AND COMMAND cmake_record_cxx_compile_features)
message(STATUS "Detecting ${lang} compile features")
set(CMAKE_CXX98_COMPILE_FEATURES)
set(CMAKE_CXX11_COMPILE_FEATURES)
set(CMAKE_CXX14_COMPILE_FEATURES)
set(CMAKE_CXX17_COMPILE_FEATURES)
include("${CMAKE_ROOT}/Modules/Internal/FeatureTesting.cmake")
cmake_record_cxx_compile_features()
if(NOT _result EQUAL 0)
message(STATUS "Detecting ${lang} compile features - failed")
return()
endif()
if (CMAKE_CXX14_COMPILE_FEATURES AND CMAKE_CXX17_COMPILE_FEATURES)
list(REMOVE_ITEM CMAKE_CXX17_COMPILE_FEATURES ${CMAKE_CXX14_COMPILE_FEATURES})
endif()
if (CMAKE_CXX11_COMPILE_FEATURES AND CMAKE_CXX14_COMPILE_FEATURES)
list(REMOVE_ITEM CMAKE_CXX14_COMPILE_FEATURES ${CMAKE_CXX11_COMPILE_FEATURES})
endif()
if (CMAKE_CXX98_COMPILE_FEATURES AND CMAKE_CXX11_COMPILE_FEATURES)
list(REMOVE_ITEM CMAKE_CXX11_COMPILE_FEATURES ${CMAKE_CXX98_COMPILE_FEATURES})
endif()
if(NOT CMAKE_CXX_COMPILE_FEATURES)
set(CMAKE_CXX_COMPILE_FEATURES
${CMAKE_CXX98_COMPILE_FEATURES}
${CMAKE_CXX11_COMPILE_FEATURES}
${CMAKE_CXX14_COMPILE_FEATURES}
${CMAKE_CXX17_COMPILE_FEATURES}
)
endif()
set(CMAKE_CXX_COMPILE_FEATURES ${CMAKE_CXX_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_CXX98_COMPILE_FEATURES ${CMAKE_CXX98_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_CXX11_COMPILE_FEATURES ${CMAKE_CXX11_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_CXX14_COMPILE_FEATURES ${CMAKE_CXX14_COMPILE_FEATURES} PARENT_SCOPE)
set(CMAKE_CXX17_COMPILE_FEATURES ${CMAKE_CXX17_COMPILE_FEATURES} PARENT_SCOPE)
message(STATUS "Detecting ${lang} compile features - done")
endif()
endfunction()
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