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#=============================================================================
# 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.)
# This module is shared by multiple languages; use include blocker.
if(__DARWIN_COMPILER_GNU)
return()
endif()
set(__DARWIN_COMPILER_GNU 1)
macro(__darwin_compiler_gnu lang)
# GNU does not have -shared on OS X
set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
endmacro()
macro(cmake_gnu_has_isysroot lang)
if("x${CMAKE_${lang}_HAS_ISYSROOT}" STREQUAL "x")
set(_doc "${lang} compiler has -isysroot")
message(STATUS "Checking whether ${_doc}")
execute_process(
COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
OUTPUT_VARIABLE _gcc_help
ERROR_VARIABLE _gcc_help
)
if("${_gcc_help}" MATCHES "isysroot")
message(STATUS "Checking whether ${_doc} - yes")
set(CMAKE_${lang}_HAS_ISYSROOT 1)
else()
message(STATUS "Checking whether ${_doc} - no")
set(CMAKE_${lang}_HAS_ISYSROOT 0)
endif()
endif()
endmacro()
macro(cmake_gnu_set_osx_deployment_target_flag lang)
if(NOT DEFINED CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG)
set(_doc "${lang} compiler supports OSX deployment target flag")
message(STATUS "Checking whether ${_doc}")
execute_process(
COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
OUTPUT_VARIABLE _gcc_help
ERROR_VARIABLE _gcc_help
)
if("${_gcc_help}" MATCHES "macosx-version-min")
message(STATUS "Checking whether ${_doc} - yes")
set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mmacosx-version-min=")
else()
message(STATUS "Checking whether ${_doc} - no")
set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "")
endif()
set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG_CODE "SET(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG \"${CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG}\")")
endif()
endmacro()
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