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https://github.com/Kitware/CMake.git
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96a953b1ed
Offer the capability, through variable `CMAKE_LINKER_TYPE`, as well as the target property `LINKER_TYPE` to specify which linker must be used. The implementation of this capability is specified by variables specific to the language and linker type: `CMAKE_<LANG>_USING_LINKER_<TYPE>`. Some definitions are provided as part of `CMake`. For example, to select the `LLVM` linker rather than the standard one, the type `LLD` should be specified through the variable `CMAKE_LINKER_TYPE`. And, on `Apple`, `Linux` and some environments on `Windows`, the variable `CMAKE_<LANG>_USING_LINKER_LLD` has value `-fuse-ld=lld`. And for `Windows` environments based on `MSVC`, where the linker is used directly, the tool `lld-link.exe` will be used rather than `link.exe`. Fixes: #19174, #24254, #24990
48 lines
2.4 KiB
CMake
48 lines
2.4 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# This module is shared by multiple languages; use include blocker.
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include_guard()
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macro(__apple_compiler_clang lang)
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set(CMAKE_${lang}_VERBOSE_FLAG "-v -Wl,-v") # also tell linker to print verbose output
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set(CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS "-dynamiclib -Wl,-headerpad_max_install_names")
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set(CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS "-bundle -Wl,-headerpad_max_install_names")
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set(CMAKE_${lang}_SYSROOT_FLAG "-isysroot")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mmacosx-version-min=")
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if(NOT CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.2)
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set(CMAKE_${lang}_SYSTEM_FRAMEWORK_SEARCH_FLAG "-iframework ")
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endif()
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set(CMAKE_${lang}_LINK_LIBRARY_USING_FRAMEWORK "-framework <LIBRARY>")
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set(CMAKE_${lang}_LINK_LIBRARY_USING_FRAMEWORK_SUPPORTED TRUE)
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# linker selection
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set(CMAKE_${lang}_USING_LINKER_SYSTEM "-fuse-ld=ld")
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set(CMAKE_${lang}_USING_LINKER_APPLE_CLASSIC "-fuse-ld=ld" "LINKER:-ld_classic")
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set(CMAKE_${lang}_USING_LINKER_LLD "-fuse-ld=lld")
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set(CMAKE_${lang}_USING_LINKER_MOLD "-fuse-ld=mold")
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set(CMAKE_${lang}_USING_LINKER_SOLD "-fuse-ld=sold")
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if(_CMAKE_OSX_SYSROOT_PATH MATCHES "/iPhoneOS")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-miphoneos-version-min=")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/iPhoneSimulator")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mios-simulator-version-min=")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/AppleTVOS")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mtvos-version-min=")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/AppleTVSimulator")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mtvos-simulator-version-min=")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/XROS")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mtargetos=xros")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/XRSimulator")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mtargetos=xros")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/WatchOS")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mwatchos-version-min=")
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elseif(_CMAKE_OSX_SYSROOT_PATH MATCHES "/WatchSimulator")
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mwatchos-simulator-version-min=")
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else()
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set(CMAKE_${lang}_OSX_DEPLOYMENT_TARGET_FLAG "-mmacosx-version-min=")
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endif()
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endmacro()
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