diff options
Diffstat (limited to 'share/cmake-3.2/Modules/CMakeTestCXXCompiler.cmake')
-rw-r--r-- | share/cmake-3.2/Modules/CMakeTestCXXCompiler.cmake | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/share/cmake-3.2/Modules/CMakeTestCXXCompiler.cmake b/share/cmake-3.2/Modules/CMakeTestCXXCompiler.cmake new file mode 100644 index 0000000..81561b2 --- /dev/null +++ b/share/cmake-3.2/Modules/CMakeTestCXXCompiler.cmake @@ -0,0 +1,89 @@ + +#============================================================================= +# Copyright 2003-2012 Kitware, Inc. +# +# Distributed under the OSI-approved BSD License (the "License"); +# see accompanying file Copyright.txt for details. +# +# This software is distributed WITHOUT ANY WARRANTY; without even the +# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# See the License for more information. +#============================================================================= +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) + +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) + +# Remove any cached result from an older CMake version. +# We now store this in CMakeCXXCompiler.cmake. +unset(CMAKE_CXX_COMPILER_WORKS CACHE) + +# This file is used by EnableLanguage in cmGlobalGenerator to +# determine that that 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" "") + 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) + set(CXX_TEST_WAS_RUN 1) +endif() + +if(NOT CMAKE_CXX_COMPILER_WORKS) + PrintTestCompilerStatus("CXX" " -- broken") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log + "Determining if the CXX compiler works failed with " + "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n") + message(FATAL_ERROR "The C++ compiler \"${CMAKE_CXX_COMPILER}\" " + "is not able to compile a simple test program.\nIt fails " + "with the following output:\n ${__CMAKE_CXX_COMPILER_OUTPUT}\n\n" + "CMake will not be able to correctly generate this project.") +else() + if(CXX_TEST_WAS_RUN) + PrintTestCompilerStatus("CXX" " -- works") + file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log + "Determining if the CXX compiler works passed with " + "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n") + endif() + + # Try to identify the ABI and configure it into CMakeCXXCompiler.cmake + include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake) + CMAKE_DETERMINE_COMPILER_ABI(CXX ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp) + # Try to identify the compiler features + include(${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() +endif() + +unset(__CMAKE_CXX_COMPILER_OUTPUT) |