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a6f2e9eded
De-duplicate IBMClang compiler information by detecting the base clang version and following the same logic as we do for any other clang of that version. This helps maintain support for new IBMClang features inherited from new base Clang versions. We already use this approach for other Clang variants, like CrayClang and FujitsuClang.
33 lines
1.2 KiB
CMake
33 lines
1.2 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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if(__COMPILER_IBMClang)
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return()
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endif()
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set(__COMPILER_IBMClang 1)
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# Macro to set ibm-clang unique config. This should be called after common
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# clang config is included and include only what isn't common.
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macro(__compiler_ibmclang lang)
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# Feature flags.
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set(CMAKE_${lang}_VERBOSE_FLAG "-v")
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set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "-fPIC")
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set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "-fPIC")
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set(CMAKE_${lang}_RESPONSE_FILE_FLAG "@")
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set(CMAKE_${lang}_RESPONSE_FILE_LINK_FLAG "@")
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if(CMAKE_${lang}_COMPILER_TARGET AND "${lang}" STREQUAL "CXX")
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list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "--target=${CMAKE_${lang}_COMPILER_TARGET}")
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endif()
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# Thin LTO is not yet supported on AIX.
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if(NOT (CMAKE_SYSTEM_NAME STREQUAL "AIX"))
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set(_CMAKE_LTO_THIN TRUE)
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endif()
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if("${lang}" STREQUAL "CXX")
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list(APPEND CMAKE_${lang}_COMPILER_PREDEFINES_COMMAND "-dM" "-E" "-c" "${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp")
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endif()
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endmacro()
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