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#=============================================================================
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# Copyright 2002-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# This module is shared by multiple languages; use include blocker.
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if(__DARWIN_COMPILER_GNU)
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return()
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endif()
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set(__DARWIN_COMPILER_GNU 1)
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macro(__darwin_compiler_gnu lang)
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set(CMAKE_${lang}_VERBOSE_FLAG "-v -Wl,-v") # also tell linker to print verbose output
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# GNU does not have -shared on OS X
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
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set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
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endmacro()
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macro(cmake_gnu_set_sysroot_flag lang)
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if(NOT DEFINED CMAKE_${lang}_SYSROOT_FLAG)
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set(_doc "${lang} compiler has -isysroot")
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message(STATUS "Checking whether ${_doc}")
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execute_process(
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COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
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OUTPUT_VARIABLE _gcc_help
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ERROR_VARIABLE _gcc_help
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)
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if("${_gcc_help}" MATCHES "isysroot")
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message(STATUS "Checking whether ${_doc} - yes")
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set(CMAKE_${lang}_SYSROOT_FLAG "-isysroot")
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else()
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message(STATUS "Checking whether ${_doc} - no")
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set(CMAKE_${lang}_SYSROOT_FLAG "")
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endif()
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set(CMAKE_${lang}_SYSROOT_FLAG_CODE "set(CMAKE_${lang}_SYSROOT_FLAG \"${CMAKE_${lang}_SYSROOT_FLAG}\")")
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endif()
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endmacro()
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macro(cmake_gnu_set_osx_deployment_target_flag lang)
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if(NOT DEFINED CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG)
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set(_doc "${lang} compiler supports OSX deployment target flag")
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message(STATUS "Checking whether ${_doc}")
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execute_process(
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COMMAND ${CMAKE_${lang}_COMPILER} "-v" "--help"
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OUTPUT_VARIABLE _gcc_help
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ERROR_VARIABLE _gcc_help
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)
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if("${_gcc_help}" MATCHES "macosx-version-min")
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message(STATUS "Checking whether ${_doc} - yes")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mmacosx-version-min=")
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else()
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message(STATUS "Checking whether ${_doc} - no")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "")
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endif()
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG_CODE "set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG \"${CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG}\")")
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endif()
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endmacro()
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