https://github.com/Kitware/CMake
Tip revision: fed67fa40d7b6e34ee7c8565694bd54af61aed73 authored by Brad King on 12 November 2021, 14:15:07 UTC
CMake 3.22.0-rc3
CMake 3.22.0-rc3
Tip revision: fed67fa
TestCXXAcceptsFlag.cmake
# 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(CHECK_START "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(CHECK_PASS "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(CHECK_FAIL "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()