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128 lines
4.8 KiB
CMake
128 lines
4.8 KiB
CMake
# Copyright (c) 2007-2015 University of Illinois at Urbana-Champaign.
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# Copyright (c) 2015, Vsevolod Stakhov
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# - Find LLVM
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# This module can be used to find LLVM.
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# It requires that the llvm-config executable be available on the system path.
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# Once found, llvm-config is used for everything else.
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#
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# Typical usage could be:
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# find_package(LLVM QUIET REQUIRED COMPONENTS jit native interpreter)
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#
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# If the QUIET flag is not set, the specified components and LLVM version are
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# outputted.
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#
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# If the COMPONENTS are not set, the default set of "all" is used.
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#
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# The following variables are set:
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#
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# LLVM_FOUND - Set to YES if LLVM is found.
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# LLVM_VERSION - Set to the decimal version of the LLVM library.
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# LLVM_C_FLAGS - All flags that should be passed to a C compiler.
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# LLVM_CXX_FLAGS - All flags that should be passed to a C++ compiler.
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# LLVM_CPP_FLAGS - All flags that should be passed to the C pre-processor.
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# LLVM_LD_FLAGS - Additional flags to pass to the linker.
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# LLVM_LIBRARY_DIRS - A list of directories where the LLVM libraries are located.
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# LLVM_INCLUDE_DIRS - A list of directories where the LLVM headers are located.
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# LLVM_LIBRARIES - A list of libraries which should be linked against.
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# A macro to run llvm config
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macro(_llvm_config _var_name)
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# Firstly, locate the LLVM config executable
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find_program(_llvm_config_exe
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NAMES llvm-config
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DOC "llvm-config executable location"
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)
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# If no llvm-config executable was found, set the output variable to not
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# found.
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if (NOT _llvm_config_exe)
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set(${_var_name} "${_var_name}-NOTFOUND")
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else (NOT _llvm_config_exe)
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# Otherwise, run llvm-config
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execute_process(
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COMMAND ${_llvm_config_exe} ${ARGN}
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OUTPUT_VARIABLE ${_var_name}
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RESULT_VARIABLE _llvm_config_retval
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if (RESULT_VARIABLE)
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message(SEND_ERROR
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"Error running llvm-config with arguments: ${ARGN}")
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endif (RESULT_VARIABLE)
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endif (NOT _llvm_config_exe)
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endmacro(_llvm_config)
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# The default set of components
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set(_llvm_components all)
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# If components have been specified via find_package, use them
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if (LLVM_FIND_COMPONENTS)
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set(_llvm_components ${LLVM_FIND_COMPONENTS})
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endif (LLVM_FIND_COMPONENTS)
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if (NOT LLVM_FIND_QUIETLY)
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message(STATUS "Looking for LLVM components: ${_llvm_components}")
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endif (NOT LLVM_FIND_QUIETLY)
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_llvm_config(LLVM_VERSION --version)
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_llvm_config(LLVM_C_FLAGS --cflags)
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_llvm_config(LLVM_CXX_FLAGS --cxxflags)
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_llvm_config(LLVM_CPP_FLAGS --cppflags)
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_llvm_config(LLVM_LD_FLAGS --ldflags)
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_llvm_config(LLVM_LIBRARY_DIRS --libdir)
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_llvm_config(LLVM_INCLUDE_DIRS --includedir)
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_llvm_config(LLVM_LIBRARIES --libs ${_llvm_components})
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if (NOT LLVM_FIND_QUIETLY)
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message(STATUS "Found LLVM version: ${LLVM_VERSION}")
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endif (NOT LLVM_FIND_QUIETLY)
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SET(libclang_llvm_header_search_paths
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# LLVM Debian/Ubuntu nightly packages: http://llvm.org/apt/
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"/usr/lib/llvm-${LLVM_VERSION}/include/"
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# LLVM MacPorts
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"/opt/local/libexec/llvm-${LLVM_VERSION}/include"
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# LLVM Homebrew
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"/usr/local/Cellar/llvm/${LLVM_VERSION}/include"
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# LLVM Homebrew/versions
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"/usr/local/lib/llvm-${LLVM_VERSION}/include"
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# FreeBSD ports versions
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"/usr/local/llvm${LLVM_VERSION}/include"
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)
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SET(libclang_llvm_lib_search_paths
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# LLVM Debian/Ubuntu nightly packages: http://llvm.org/apt/
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"/usr/lib/llvm-${LLVM_VERSION}/lib/"
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# LLVM MacPorts
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"/opt/local/libexec/llvm-${LLVM_VERSION}/lib"
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# LLVM Homebrew
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"/usr/local/Cellar/llvm/${LLVM_VERSION}/lib"
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# LLVM Homebrew/versions
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"/usr/local/lib/llvm-${LLVM_VERSION}/lib"
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# FreeBSD ports versions
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"/usr/local/llvm${LLVM_VERSION}/lib"
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)
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find_path(LIBCLANG_INCLUDE_DIR clang-c/Index.h
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PATHS ${libclang_llvm_header_search_paths}
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PATH_SUFFIXES LLVM/include #Windows package from http://llvm.org/releases/
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DOC "The path to the directory that contains clang-c/Index.h")
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find_library(LIBCLANG_LIBRARY NAMES libclang.imp libclang clang
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PATHS ${libclang_llvm_lib_search_paths}
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PATH_SUFFIXES LLVM/lib #Windows package from http://llvm.org/releases/
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DOC "The file that corresponds to the libclang library.")
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get_filename_component(LIBCLANG_LIBRARY_DIR ${LIBCLANG_LIBRARY} PATH)
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set(LIBCLANG_LIBRARIES ${LIBCLANG_LIBRARY})
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set(LIBCLANG_INCLUDE_DIRS ${LIBCLANG_INCLUDE_DIR})
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# handle the QUIETLY and REQUIRED arguments and set LLVM_FOUND to TRUE if
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# all listed variables are TRUE
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(LLVM
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DEFAULT_MSG
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LLVM_LIBRARIES
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LLVM_INCLUDE_DIRS
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LLVM_LIBRARY_DIRS)
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