# 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() |