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- # Distributed under the OSI-approved BSD 3-Clause License. See accompanying
- # file Copyright.txt or https://cmake.org/licensing for details.
- #[=======================================================================[.rst:
- TestCXXAcceptsFlag
- ------------------
- .. deprecated:: 3.0
- See :module:`CheckCXXCompilerFlag`.
- Check if the CXX compiler accepts a flag.
- .. code-block:: cmake
- CHECK_CXX_ACCEPTS_FLAG(<flags> <variable>)
- ``<flags>``
- the flags to try
- ``<variable>``
- variable to store the result
- #]=======================================================================]
- macro(CHECK_CXX_ACCEPTS_FLAG FLAGS VARIABLE)
- if(NOT DEFINED ${VARIABLE})
- message(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS}")
- try_compile(${VARIABLE}
- ${CMAKE_BINARY_DIR}
- ${CMAKE_ROOT}/Modules/DummyCXXFile.cxx
- CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${FLAGS}
- OUTPUT_VARIABLE OUTPUT)
- if(${VARIABLE})
- message(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS} - yes")
- file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
- "Determining if the CXX compiler accepts the flag ${FLAGS} passed with "
- "the following output:\n${OUTPUT}\n\n")
- else()
- message(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS} - no")
- file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
- "Determining if the CXX compiler accepts the flag ${FLAGS} failed with "
- "the following output:\n${OUTPUT}\n\n")
- endif()
- endif()
- endmacro()
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