54 lines
2.1 KiB
CMake
54 lines
2.1 KiB
CMake
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function(determine_target_arch OUTPUT_VARIABLE)
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if("${CMAKE_C_COMPILER_ID}" STREQUAL "MSVC")
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if("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "X86")
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set(ARCH "i686")
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elseif("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "x64")
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set(ARCH "x86_64")
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elseif("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "ARM")
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set(ARCH "arm")
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elseif("${MSVC_C_ARCHITECTURE_ID}" STREQUAL "ARM64")
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set(ARCH "arm64")
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else()
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message(FATAL_ERROR "Unrecognized architecture ${MSVC_C_ARCHITECTURE_ID} from ${CMAKE_C_COMPILER}")
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endif()
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elseif("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")
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if("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
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set(CMD_ARGS "-target" "${CMAKE_C_COMPILER_TARGET}" "-dumpmachine")
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else()
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set(CMD_ARGS "-dumpmachine")
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endif()
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execute_process(
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COMMAND
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${CMAKE_C_COMPILER} ${CMD_ARGS}
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RESULT_VARIABLE
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RESULT
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OUTPUT_VARIABLE
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ARCH
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ERROR_QUIET)
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if(RESULT)
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message(FATAL_ERROR "Failed to determine target architecture triplet: ${RESULT}")
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endif()
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string(REGEX MATCH "([^-]+).*" ARCH_MATCH ${ARCH})
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if(NOT CMAKE_MATCH_1 OR NOT ARCH_MATCH)
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message(FATAL_ERROR "Failed to match the target architecture triplet: ${ARCH}")
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endif()
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set(ARCH ${CMAKE_MATCH_1})
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if("${ARCH}" STREQUAL "x86_64")
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# Do nothing
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elseif("${ARCH}" STREQUAL "aarch64")
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set(ARCH "arm64")
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elseif("${ARCH}" STREQUAL "i686")
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# Do nothing
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elseif("${ARCH}" STREQUAL "i386")
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# Do nothing
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else()
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message(FATAL_ERROR "Unrecognized architecture ${ARCH} from ${CMAKE_C_COMPILER}")
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endif()
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else()
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message(FATAL_ERROR "Unrecognized Compiler ${CMAKE_C_COMPILER_ID}")
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endif()
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message(STATUS "Target architecture - ${ARCH}")
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set(${OUTPUT_VARIABLE} ${ARCH} PARENT_SCOPE)
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endfunction()
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