diff options
Diffstat (limited to 'Modules/Internal/FeatureTesting.cmake')
| -rw-r--r-- | Modules/Internal/FeatureTesting.cmake | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/Modules/Internal/FeatureTesting.cmake b/Modules/Internal/FeatureTesting.cmake index de336e7..75be473 100644 --- a/Modules/Internal/FeatureTesting.cmake +++ b/Modules/Internal/FeatureTesting.cmake @@ -71,10 +71,35 @@ endmacro() macro(_record_compiler_features_c std) list(APPEND CMAKE_C${std}_COMPILE_FEATURES c_std_${std}) - _record_compiler_features(C "${CMAKE_C${std}_STANDARD_COMPILE_OPTION}" CMAKE_C${std}_COMPILE_FEATURES) + + get_property(lang_level_has_features GLOBAL PROPERTY CMAKE_C${std}_KNOWN_FEATURES) + if(lang_level_has_features) + _record_compiler_features(C "${CMAKE_C${std}_STANDARD_COMPILE_OPTION}" CMAKE_C${std}_COMPILE_FEATURES) + endif() + unset(lang_level_has_features) endmacro() macro(_record_compiler_features_cxx std) list(APPEND CMAKE_CXX${std}_COMPILE_FEATURES cxx_std_${std}) - _record_compiler_features(CXX "${CMAKE_CXX${std}_STANDARD_COMPILE_OPTION}" CMAKE_CXX${std}_COMPILE_FEATURES) + + get_property(lang_level_has_features GLOBAL PROPERTY CMAKE_CXX${std}_KNOWN_FEATURES) + if(lang_level_has_features) + _record_compiler_features(CXX "${CMAKE_CXX${std}_STANDARD_COMPILE_OPTION}" CMAKE_CXX${std}_COMPILE_FEATURES) + endif() + unset(lang_level_has_features) +endmacro() + +macro(_has_compiler_features lang level compile_flags feature_list) + # presume all known features are supported + get_property(known_features GLOBAL PROPERTY CMAKE_${lang}${level}_KNOWN_FEATURES) + list(APPEND ${feature_list} ${known_features}) +endmacro() + +macro(_has_compiler_features_c std) + list(APPEND CMAKE_C${std}_COMPILE_FEATURES c_std_${std}) + _has_compiler_features(C ${std} "${CMAKE_C${std}_STANDARD_COMPILE_OPTION}" CMAKE_C${std}_COMPILE_FEATURES) +endmacro() +macro(_has_compiler_features_cxx std) + list(APPEND CMAKE_CXX${std}_COMPILE_FEATURES cxx_std_${std}) + _has_compiler_features(CXX ${std} "${CMAKE_CXX${std}_STANDARD_COMPILE_OPTION}" CMAKE_CXX${std}_COMPILE_FEATURES) endmacro() |