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cmake_policy(SET CMP0057 NEW)
include(RunCMake)
run_cmake(NotAFeature)
run_cmake(NotAFeatureGenex)
run_cmake(NotAFeatureTransitive)
run_cmake(NotAFeature_OriginDebug)
run_cmake(NotAFeature_OriginDebugGenex)
run_cmake(NotAFeature_OriginDebugTransitive)
run_cmake(NotAFeature_OriginDebugCommand)
run_cmake(compiler_introspection)
include("${RunCMake_BINARY_DIR}/compiler_introspection-build/info.cmake")
if (NOT C_FEATURES)
run_cmake(NoSupportedCFeatures)
run_cmake(NoSupportedCFeaturesGenex)
endif()
if (NOT CXX_FEATURES)
run_cmake(NoSupportedCxxFeatures)
run_cmake(NoSupportedCxxFeaturesGenex)
elseif (cxx_std_98 IN_LIST CXX_FEATURES AND cxx_std_11 IN_LIST CXX_FEATURES)
if(CXX_STANDARD_DEFAULT EQUAL 98)
run_cmake(LinkImplementationFeatureCycle)
endif()
run_cmake(LinkImplementationFeatureCycleSolved)
if (cxx_final IN_LIST CXX_FEATURES)
set(RunCMake_TEST_OPTIONS "-DHAVE_FINAL=1")
endif()
run_cmake(NonValidTarget1)
run_cmake(NonValidTarget2)
unset(RunCMake_TEST_OPTIONS)
endif()
configure_file("${RunCMake_SOURCE_DIR}/CMakeLists.txt" "${RunCMake_BINARY_DIR}/CMakeLists.txt" COPYONLY)
file(READ "${RunCMake_SOURCE_DIR}/CMP0128Common.cmake" cmp0128_common)
function(test_build)
set(test ${name}-${lang})
file(READ "${RunCMake_SOURCE_DIR}/${name}.cmake" cmake)
file(CONFIGURE OUTPUT "${RunCMake_BINARY_DIR}/${test}.cmake" CONTENT "${cmake}${cmp0128_common}" @ONLY)
if(EXISTS "${RunCMake_SOURCE_DIR}/${name}-build-check.cmake")
configure_file("${RunCMake_SOURCE_DIR}/${name}-build-check.cmake" "${RunCMake_BINARY_DIR}/${test}-build-check.cmake" @ONLY)
endif()
if(EXISTS "${RunCMake_SOURCE_DIR}/${name}-stderr.txt")
configure_file("${RunCMake_SOURCE_DIR}/${name}-stderr.txt" "${RunCMake_BINARY_DIR}/${test}-stderr.txt" @ONLY)
endif()
set(RunCMake_SOURCE_DIR "${RunCMake_BINARY_DIR}")
set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/${test}-build")
run_cmake(${test})
set(RunCMake_TEST_NO_CLEAN 1)
run_cmake_command(${test}-build ${CMAKE_COMMAND} --build . ${ARGN})
endfunction()
# Mangle flags such as they're in verbose build output.
macro(mangle_flags variable)
set(result "${${variable}}")
if(RunCMake_GENERATOR MATCHES "Visual Studio" AND MSVC_TOOLSET_VERSION GREATER_EQUAL 141)
string(REPLACE "-" "/" result "${result}")
elseif(RunCMake_GENERATOR STREQUAL "Xcode" AND XCODE_VERSION VERSION_LESS 15.3 AND CMAKE_XCODE_BUILD_SYSTEM GREATER_EQUAL 12)
string(REPLACE "=" [[\\=]] result "${result}")
endif()
string(REPLACE ";" " " result "${result}")
list(APPEND flags "${result}")
endmacro()
function(test_cmp0128_old_same_standard)
set(flag "${${lang}${${lang}_STANDARD_DEFAULT}_EXT_FLAG}")
if(NOT flag)
return()
endif()
mangle_flags(flag)
set(name CMP0128OldSameStandard)
test_build(--verbose)
endfunction()
function(test_cmp0128_new_extensions_opposite)
if(extensions_opposite)
set(flag_ext "_EXT")
endif()
set(flag "${${lang}${${lang}_STANDARD_DEFAULT}${flag_ext}_FLAG}")
if(NOT flag)
return()
endif()
mangle_flags(flag)
# Make sure we enable/disable extensions when:
# 1. LANG_STANDARD is unset.
set(name CMP0128NewExtensionsStandardUnset)
set(RunCMake_TEST_OPTIONS -DCMAKE_POLICY_DEFAULT_CMP0128=NEW)
test_build(--verbose)
# 2. LANG_STANDARD matches CMAKE_LANG_STANDARD_DEFAULT.
set(name CMP0128NewExtensionsStandardDefault)
test_build(--verbose)
endfunction()
function(test_cmp0128_new_no_unnecessary_flag)
set(standard_flag "${${lang}${${lang}_STANDARD_DEFAULT}_FLAG}")
set(extension_flag "${${lang}${${lang}_STANDARD_DEFAULT}_EXT_FLAG}")
if(NOT standard_flag AND NOT extension_flag)
return()
endif()
mangle_flags(standard_flag)
mangle_flags(extension_flag)
set(name CMP0128NewNoUnnecessaryFlag)
set(RunCMake_TEST_OPTIONS -DCMAKE_POLICY_DEFAULT_CMP0128=NEW)
test_build(--verbose)
endfunction()
function(test_cmp0128_warn_match)
set(name CMP0128WarnMatch)
test_build()
endfunction()
function(test_cmp0128_warn_unset)
# For compilers that had CMAKE_<LANG>_EXTENSION_COMPILE_OPTION (only IAR)
# there is no behavioral change and thus no warning.
if(NOT "${${lang}_EXT_FLAG}" STREQUAL "")
return()
endif()
if(extensions_opposite)
set(opposite "enabled")
else()
set(opposite "disabled")
endif()
set(name CMP0128WarnUnset)
test_build()
endfunction()
function(test_lang lang ext)
if(CMake_NO_${lang}_STANDARD)
return()
endif()
set(extensions_default "${${lang}_EXTENSIONS_DEFAULT}")
set(standard_default "${${lang}_STANDARD_DEFAULT}")
if(extensions_default)
set(extensions_opposite OFF)
else()
set(extensions_opposite ON)
endif()
test_cmp0128_new_extensions_opposite()
test_cmp0128_new_no_unnecessary_flag()
test_cmp0128_old_same_standard()
test_cmp0128_warn_match()
test_cmp0128_warn_unset()
endfunction()
if(C_STANDARD_DEFAULT)
test_lang(C c)
endif()
if(CXX_STANDARD_DEFAULT)
run_cmake(NotAStandard)
foreach(standard 98 11)
if (CXX${standard}_FLAG STREQUAL NOTFOUND)
run_cmake(RequireCXX${standard})
run_cmake(RequireCXX${standard}Variable)
endif()
if (CXX${standard}_EXT_FLAG STREQUAL NOTFOUND)
run_cmake(RequireCXX${standard}Ext)
run_cmake(RequireCXX${standard}ExtVariable)
endif()
endforeach()
test_lang(CXX cpp)
endif()
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