diff options
Diffstat (limited to 'share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake')
-rw-r--r-- | share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake b/share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake new file mode 100644 index 0000000..b9cb1dd --- /dev/null +++ b/share/cmake-3.18/Modules/CMakeTestCXXCompiler.cmake @@ -0,0 +1,91 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + + +if(CMAKE_CXX_COMPILER_FORCED) + # The compiler configuration was forced by the user. + # Assume the user has configured all compiler information. + set(CMAKE_CXX_COMPILER_WORKS TRUE) + return() +endif() + +include(CMakeTestCompilerCommon) + +# work around enforced code signing and / or missing exectuable target type +set(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE ${CMAKE_TRY_COMPILE_TARGET_TYPE}) +if(_CMAKE_FEATURE_DETECTION_TARGET_TYPE) + set(CMAKE_TRY_COMPILE_TARGET_TYPE ${_CMAKE_FEATURE_DETECTION_TARGET_TYPE}) +endif() + +# Remove any cached result from an older CMake version. +# We now store this in CMakeCXXCompiler.cmake. +unset(CMAKE_CXX_COMPILER_WORKS CACHE) + +# Try to identify the ABI and configure it into CMakeCXXCompiler.cmake +include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake) +CMAKE_DETERMINE_COMPILER_ABI(CXX ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp) +if(CMAKE_CXX_ABI_COMPILED) + # The compiler worked so skip dedicated test below. + set(CMAKE_CXX_COMPILER_WORKS TRUE) + message(STATUS "Check for working CXX compiler: ${CMAKE_CXX_COMPILER} - skipped") +endif() + +# This file is used by EnableLanguage in cmGlobalGenerator to +# determine that the selected C++ compiler can actually compile +# and link the most basic of programs. If not, a fatal error +# is set and cmake stops processing commands and will not generate +# any makefiles or projects. +if(NOT CMAKE_CXX_COMPILER_WORKS) + PrintTestCompilerStatus("CXX") + __TestCompiler_setTryCompileTargetType() + file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx + "#ifndef __cplusplus\n" + "# error \"The CMAKE_CXX_COMPILER is set to a C compiler\"\n" + "#endif\n" + "int main(){return 0;}\n") + try_compile(CMAKE_CXX_COMPILER_WORKS ${CMAKE_BINARY_DIR} + ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCXXCompiler.cxx + OUTPUT_VARIABLE __CMAKE_CXX_COMPILER_OUTPUT) + # Move result from cache to normal variable. + set(CMAKE_CXX_COMPILER_WORKS ${CMAKE_CXX_COMPILER_WORKS}) + unset(CMAKE_CXX_COMPILER_WORKS CACHE) + __TestCompiler_restoreTryCompileTargetType() + if(NOT CMAKE_CXX_COMPILER_WORKS) + PrintTestCompilerResult(CHECK_FAIL "broken") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Determining if the CXX compiler works failed with " + "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n") + string(REPLACE "\n" "\n " _output "${__CMAKE_CXX_COMPILER_OUTPUT}") + message(FATAL_ERROR "The C++ compiler\n \"${CMAKE_CXX_COMPILER}\"\n" + "is not able to compile a simple test program.\nIt fails " + "with the following output:\n ${_output}\n\n" + "CMake will not be able to correctly generate this project.") + endif() + PrintTestCompilerResult(CHECK_PASS "works") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Determining if the CXX compiler works passed with " + "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n") +endif() + +# Try to identify the compiler features +include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake) +CMAKE_DETERMINE_COMPILE_FEATURES(CXX) + +# Re-configure to save learned information. +configure_file( + ${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in + ${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake + @ONLY + ) +include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake) + +if(CMAKE_CXX_SIZEOF_DATA_PTR) + foreach(f ${CMAKE_CXX_ABI_FILES}) + include(${f}) + endforeach() + unset(CMAKE_CXX_ABI_FILES) +endif() + +set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE}) +unset(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE) +unset(__CMAKE_CXX_COMPILER_OUTPUT) |