cpp/cmake_modules/Findutf8proc.cmake

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if(utf8proc_FOUND)
  return()
endif()

if(ARROW_PACKAGE_KIND STREQUAL "vcpkg")
  set(find_package_args "")
  if(utf8proc_FIND_VERSION)
    list(APPEND find_package_args ${utf8proc_FIND_VERSION})
  endif()
  if(utf8proc_FIND_QUIETLY)
    list(APPEND find_package_args QUIET)
  endif()
  if(utf8proc_FIND_REQUIRED)
    list(APPEND find_package_args REQUIRED)
  endif()
  find_package(utf8proc NAMES unofficial-utf8proc ${find_package_args})
  if(utf8proc_FOUND)
    add_library(utf8proc::utf8proc ALIAS utf8proc)
    return()
  endif()
endif()

function(extract_utf8proc_version)
  if(utf8proc_INCLUDE_DIR)
    file(READ "${utf8proc_INCLUDE_DIR}/utf8proc.h" UTF8PROC_H_CONTENT)

    string(REGEX MATCH "#define UTF8PROC_VERSION_MAJOR [0-9]+"
                 UTF8PROC_MAJOR_VERSION_DEFINITION "${UTF8PROC_H_CONTENT}")
    string(REGEX MATCH "#define UTF8PROC_VERSION_MINOR [0-9]+"
                 UTF8PROC_MINOR_VERSION_DEFINITION "${UTF8PROC_H_CONTENT}")
    string(REGEX MATCH "#define UTF8PROC_VERSION_PATCH [0-9]+"
                 UTF8PROC_PATCH_VERSION_DEFINITION "${UTF8PROC_H_CONTENT}")

    string(REGEX MATCH "[0-9]+$" UTF8PROC_MAJOR_VERSION
                 "${UTF8PROC_MAJOR_VERSION_DEFINITION}")
    string(REGEX MATCH "[0-9]+$" UTF8PROC_MINOR_VERSION
                 "${UTF8PROC_MINOR_VERSION_DEFINITION}")
    string(REGEX MATCH "[0-9]+$" UTF8PROC_PATCH_VERSION
                 "${UTF8PROC_PATCH_VERSION_DEFINITION}")
    set(utf8proc_VERSION
        "${UTF8PROC_MAJOR_VERSION}.${UTF8PROC_MINOR_VERSION}.${UTF8PROC_PATCH_VERSION}"
        PARENT_SCOPE)
  else()
    set(utf8proc_VERSION
        ""
        PARENT_SCOPE)
  endif()
endfunction(extract_utf8proc_version)

if(ARROW_UTF8PROC_USE_SHARED)
  set(utf8proc_LIB_NAMES)
  if(CMAKE_IMPORT_LIBRARY_SUFFIX)
    list(APPEND utf8proc_LIB_NAMES
         "${CMAKE_IMPORT_LIBRARY_PREFIX}utf8proc${CMAKE_IMPORT_LIBRARY_SUFFIX}")
  endif()
  list(APPEND utf8proc_LIB_NAMES
       "${CMAKE_SHARED_LIBRARY_PREFIX}utf8proc${CMAKE_SHARED_LIBRARY_SUFFIX}")
else()
  if(MSVC AND NOT DEFINED utf8proc_MSVC_STATIC_LIB_SUFFIX)
    set(utf8proc_MSVC_STATIC_LIB_SUFFIX "_static")
  endif()
  set(utf8proc_STATIC_LIB_SUFFIX
      "${utf8proc_MSVC_STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}")
  set(utf8proc_LIB_NAMES
      "${CMAKE_STATIC_LIBRARY_PREFIX}utf8proc${utf8proc_STATIC_LIB_SUFFIX}")
endif()

if(utf8proc_ROOT)
  find_library(utf8proc_LIB
               NAMES ${utf8proc_LIB_NAMES}
               PATHS ${utf8proc_ROOT}
               PATH_SUFFIXES ${ARROW_LIBRARY_PATH_SUFFIXES}
               NO_DEFAULT_PATH)
  find_path(utf8proc_INCLUDE_DIR
            NAMES utf8proc.h
            PATHS ${utf8proc_ROOT}
            NO_DEFAULT_PATH
            PATH_SUFFIXES ${ARROW_INCLUDE_PATH_SUFFIXES})
  extract_utf8proc_version()
else()
  find_library(utf8proc_LIB
               NAMES ${utf8proc_LIB_NAMES}
               PATH_SUFFIXES ${ARROW_LIBRARY_PATH_SUFFIXES})
  find_path(utf8proc_INCLUDE_DIR
            NAMES utf8proc.h
            PATH_SUFFIXES ${ARROW_INCLUDE_PATH_SUFFIXES})
  extract_utf8proc_version()
endif()

find_package_handle_standard_args(
  utf8proc
  REQUIRED_VARS utf8proc_LIB utf8proc_INCLUDE_DIR
  VERSION_VAR utf8proc_VERSION)

if(utf8proc_FOUND)
  set(utf8proc_FOUND TRUE)
  add_library(utf8proc::utf8proc UNKNOWN IMPORTED)
  set_target_properties(utf8proc::utf8proc
                        PROPERTIES IMPORTED_LOCATION "${utf8proc_LIB}"
                                   INTERFACE_INCLUDE_DIRECTORIES
                                   "${utf8proc_INCLUDE_DIR}")
  if(NOT ARROW_UTF8PROC_USE_SHARED)
    set_target_properties(utf8proc::utf8proc PROPERTIES INTERFACE_COMPILE_DEFINITIONS
                                                        "UTF8PROC_STATIC")
  endif()
endif()