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1# get clang resource directory2#3# usage:4# get_clang_resource_dir(out_var [PREFIX prefix] [SUBDIR subdirectory])5#6# user can use `PREFIX` to prepend some path to it or use `SUBDIR` to7# get subdirectory under clang resource dir8 9function(get_clang_resource_dir out_var)10 cmake_parse_arguments(ARG "" "PREFIX;SUBDIR" "" ${ARGN})11 12 if(DEFINED CLANG_RESOURCE_DIR AND NOT CLANG_RESOURCE_DIR STREQUAL "")13 set(ret_dir bin)14 cmake_path(APPEND ret_dir ${CLANG_RESOURCE_DIR})15 else()16 if (NOT CLANG_VERSION_MAJOR)17 string(REGEX MATCH "^[0-9]+" CLANG_VERSION_MAJOR ${PACKAGE_VERSION})18 endif()19 set(ret_dir lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION_MAJOR})20 endif()21 22 if(ARG_PREFIX)23 set(ret_dir ${ARG_PREFIX}/${ret_dir})24 endif()25 if(ARG_SUBDIR)26 set(ret_dir ${ret_dir}/${ARG_SUBDIR})27 endif()28 29 set(${out_var} ${ret_dir} PARENT_SCOPE)30endfunction()31