4abb927bac
When LLVM_TARGETS_TO_BUILD contains host target, runtime build sets CMAKE_C_COMPILER to clang-cl on Windows. Changes to fix build on Windows: - libclc struggles to pass specific flags to clang-cl MSVC-like interface. - compile flag handling will be consistent across all host systems. - libclc build is cross-compilation for offloading targets.
45 lines
1.3 KiB
CMake
45 lines
1.3 KiB
CMake
set(CMAKE_CLC_OUTPUT_EXTENSION .o)
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set(CMAKE_INCLUDE_FLAG_CLC "-I")
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set(CMAKE_CLC_DEPFILE_FORMAT gcc)
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set(CMAKE_DEPFILE_FLAGS_CLC "-MD -MT <DEP_TARGET> -MF <DEP_FILE>")
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cmake_initialize_per_config_variable(CMAKE_CLC_FLAGS "Flags used by the CLC compiler")
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if(NOT CMAKE_CLC_COMPILE_OBJECT)
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set(CMAKE_CLC_COMPILE_OBJECT
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"<CMAKE_CLC_COMPILER> -x cl <DEFINES> <INCLUDES> <FLAGS> -c -o <OBJECT> <SOURCE>")
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endif()
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# Finds a required LLVM tool by searching the CLC compiler directory first.
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function(find_llvm_tool name out_var)
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cmake_path(GET CMAKE_CLC_COMPILER PARENT_PATH llvm_bin_dir)
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find_program(${out_var}
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NAMES ${name}
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HINTS "${llvm_bin_dir}"
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DOC "libclc: path to the ${name} tool"
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)
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if(NOT ${out_var})
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message(FATAL_ERROR "${name} not found for libclc build.")
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endif()
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endfunction()
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find_llvm_tool(llvm-ar CLC_AR)
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find_llvm_tool(llvm-ranlib CLC_RANLIB)
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if(NOT DEFINED CMAKE_CLC_ARCHIVE_CREATE)
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set(CMAKE_CLC_ARCHIVE_CREATE "${CLC_AR} qc <TARGET> <OBJECTS>")
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endif()
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if(NOT DEFINED CMAKE_CLC_ARCHIVE_APPEND)
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set(CMAKE_CLC_ARCHIVE_APPEND "${CLC_AR} q <TARGET> <OBJECTS>")
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endif()
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if(NOT DEFINED CMAKE_CLC_ARCHIVE_FINISH)
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set(CMAKE_CLC_ARCHIVE_FINISH "${CLC_RANLIB} <TARGET>")
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endif()
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set(CMAKE_CLC_USE_LINKER_INFORMATION FALSE)
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set(CMAKE_CLC_INFORMATION_LOADED 1)
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