| # 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() |