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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.
# 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)
set(CMAKE_${lang}_VERBOSE_FLAG "-v -Wl,-v") # also tell linker to print verbose output
# GNU does not have -shared on OS X
set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 4.3)
set(CMAKE_${lang}_SYSTEM_FRAMEWORK_SEARCH_FLAG "-iframework ")
endif()
endmacro()
macro(cmake_gnu_set_sysroot_flag lang)
if(NOT DEFINED CMAKE_${lang}_SYSROOT_FLAG)
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}_SYSROOT_FLAG "-isysroot")
else()
message(STATUS "Checking whether ${_doc} - no")
set(CMAKE_${lang}_SYSROOT_FLAG "")
endif()
set(CMAKE_${lang}_SYSROOT_FLAG_CODE "set(CMAKE_${lang}_SYSROOT_FLAG \"${CMAKE_${lang}_SYSROOT_FLAG}\")")
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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