mirror of
https://github.com/reactos/CMake.git
synced 2024-11-29 14:30:27 +00:00
44 lines
1.9 KiB
CMake
44 lines
1.9 KiB
CMake
# - Test CXX compiler for a flag
|
|
# Check if the CXX compiler accepts a flag
|
|
#
|
|
# Macro CHECK_CXX_ACCEPTS_FLAG(FLAGS VARIABLE) -
|
|
# checks if the function exists
|
|
# FLAGS - the flags to try
|
|
# VARIABLE - variable to store the result
|
|
#
|
|
|
|
#=============================================================================
|
|
# Copyright 2002-2009 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.)
|
|
|
|
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(${VARIABLE})
|
|
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(${VARIABLE})
|
|
ENDIF(NOT DEFINED ${VARIABLE})
|
|
ENDMACRO(CHECK_CXX_ACCEPTS_FLAG)
|