kc3-lang/libqrencode/cmake/FindIconv.cmake

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• Hash : 8595f901
  Author :
  Date : 2017-02-03T13:23:55
  

  Some blanks at the end of the line eliminated.
  

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• cmake/FindIconv.cmake

• include(CheckFunctionExists)
  
  set(_ICONV_SEARCHES)
  
  # Search ICONV_DIR first if it is set.
  if(NOT ICONV_DIR AND ENV{ICONV_DIR})
    set(ICONV_DIR $ENV{ICONV_DIR})
  endif()
  
  if(ICONV_DIR)
    set(_ICONV_DIR_SEARCH PATHS ${ICONV_DIR} NO_DEFAULT_PATH)
    list(APPEND _ICONV_SEARCHES _ICONV_DIR_SEARCH)
  endif()
  
  # Normal search.
  set(_ICONV_SEARCH_NORMAL
      PATHS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\GnuWin32\\Iconv;InstallPath]"
            "$ENV{PROGRAMFILES}/iconv"
            ENV CPATH
            ENV C_INCLUDE_PATH
            ENV CPLUS_INCLUDE_PATH
            ENV LIBRARY_PATH)
  list(APPEND _ICONV_SEARCHES _ICONV_SEARCH_NORMAL)
  
  set(ICONV_NAMES iconv iconv2 libiconv iconv64)
  set(ICONV_NAMES_DEBUG iconvd iconv64d)
  
  # Try each search configuration.
  foreach(search ${_ICONV_SEARCHES})
      find_path(ICONV_INCLUDE_DIR NAMES iconv.h ${${search}} PATH_SUFFIXES include)
  endforeach()
  
  # Allow ICONV_LIBRARY to be set manually, as the location of the iconv library
  if(NOT ICONV_LIBRARY)
      foreach(search ${_ICONV_SEARCHES})
          find_library(ICONV_LIBRARY_RELEASE NAMES ${ICONV_NAMES} ${${search}} PATH_SUFFIXES lib)
          find_library(ICONV_LIBRARY_DEBUG   NAMES ${ICONV_NAMES_DEBUG} ${${search}} PATH_SUFFIXES lib)
      endforeach()
  
      include(SelectLibraryConfigurations)
      select_library_configurations(ICONV)
  endif()
  
  unset(ICONV_NAMES)
  unset(ICONV_NAMES_DEBUG)
  
  if(ICONV_INCLUDE_DIR AND EXISTS "${ICONV_INCLUDE_DIR}/iconv.h")
      file(STRINGS "${ICONV_INCLUDE_DIR}/iconv.h" ICONV_H REGEX "^#define _LIBICONV_VERSION 0x([0-9]+)")
      string(REGEX MATCH "q#define _LIBICONV_VERSION 0x([0-9][0-9])([0-9][0-9])?([0-9][0-9])?.*" temp_match "${ICONV_H}")
      unset(temp_match)
      if(CMAKE_MATCH_0)
          set(ICONV_VERSION_MAJOR "${CMAKE_MATCH_1}")
          set(ICONV_VERSION_MINOR "${CMAKE_MATCH_2}")
          set(ICONV_VERSION_PATCH "${CMAKE_MATCH_3}")
          string(REGEX REPLACE "0*([1-9][0-9]*).*" "\\1" ICONV_VERSION_MAJOR "${ICONV_VERSION_MAJOR}")
          string(REGEX REPLACE "0*([1-9][0-9]*).*" "\\1" ICONV_VERSION_MINOR "${ICONV_VERSION_MINOR}")
          string(REGEX REPLACE "0*([1-9][0-9]*).*" "\\1" ICONV_VERSION_PATCH "${ICONV_VERSION_PATCH}")
  
          set(ICONV_VERSION_STRING "${ICONV_VERSION_MAJOR}.${ICONV_VERSION_MINOR}")
          if(ICONV_VERSION_PATCH)
              set(ICONV_VERSION_STRING "${ICONV_VERSION_STRING}.${ICONV_VERSION_PATCH}")
          endif()
      endif()
  endif()
  
  check_function_exists(iconv_open ICONV_IN_GLIBC)
  
  set(ICONV_FOUND_ANY FALSE)
  if(ICONV_IN_GLIBC OR ICONV_LIBRARY)
      set(ICONV_FOUND_ANY TRUE)
  endif()
  
  # handle the QUIETLY and REQUIRED arguments and set ICONV_FOUND to TRUE if
  # all listed variables are TRUE
  include(FindPackageHandleStandardArgs)
  find_package_handle_standard_args(ICONV
      REQUIRED_VARS ICONV_FOUND_ANY ICONV_INCLUDE_DIR
      VERSION_VAR ICONV_VERSION_STRING)
  
  mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)
  
  if(NOT ICONV_FOUND)
      return()
  endif()
  
  set(ICONV_INCLUDE_DIRS ${ICONV_INCLUDE_DIR})
  
  if(NOT ICONV_LIBRARIES)
      set(ICONV_LIBRARIES ${ICONV_LIBRARY})
  endif()
  
  if(ICONV_LIBRARY AND NOT TARGET ICONV::ICONV)
      add_library(ICONV::ICONV UNKNOWN IMPORTED)
      set_target_properties(ICONV::ICONV PROPERTIES
          INTERFACE_INCLUDE_DIRECTORIES "${ICONV_INCLUDE_DIRS}"
          IMPORTED_LOCATION "${ICONV_LIBRARY}")
  
      if(ICONV_LIBRARY_RELEASE)
          set_property(TARGET ICONV::ICONV APPEND PROPERTY
              IMPORTED_CONFIGURATIONS RELEASE)
          set_target_properties(ICONV::ICONV PROPERTIES
              IMPORTED_LOCATION_RELEASE "${ICONV_LIBRARY_RELEASE}")
      endif()
  
      if(ICONV_LIBRARY_DEBUG)
          set_property(TARGET ICONV::ICONV APPEND PROPERTY
              IMPORTED_CONFIGURATIONS DEBUG)
          set_target_properties(ICONV::ICONV PROPERTIES
              IMPORTED_LOCATION_DEBUG "${ICONV_LIBRARY_DEBUG}")
      endif()
  elseif(NOT TARGET ICONV::ICONV)
      add_library(ICONV::ICONV INTERFACE IMPORTED)
      set_target_properties(ICONV::ICONV PROPERTIES
          INTERFACE_INCLUDE_DIRECTORIES "${ICONV_INCLUDE_DIRS}")
  endif()
  

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