source/build-cmake/3rdparty/FindIconv.cmake

   1 # Originally found here:
   2 # https://github.com/onyx-intl/cmake_modules/blob/master/FindIconv.cmake
   3 #
   4 # - Try to find Iconv
   5 # Once done this will define
   6 #
   7 # ICONV_FOUND - system has Iconv
   8 # ICONV_INCLUDE_DIR - the Iconv include directory
   9 # ICONV_LIBRARIES - Link these to use Iconv
  10 # ICONV_SECOND_ARGUMENT_IS_CONST - the second argument for iconv() is const
  11 #
  12 include(CheckCXXSourceCompiles)
  13
  14 IF (ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
  15   # Already in cache, be silent
  16   SET(ICONV_FIND_QUIETLY TRUE)
  17 ENDIF (ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
  18
  19 FIND_PATH(ICONV_INCLUDE_DIR iconv.h)
  20
  21 FIND_LIBRARY(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c)
  22
  23 IF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
  24    SET(ICONV_FOUND TRUE)
  25 ENDIF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
  26
  27 set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
  28 set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
  29 IF(ICONV_FOUND)
  30   check_cxx_source_compiles("
  31   #include <iconv.h>
  32   int main(){
  33     iconv_t conv = 0;
  34     const char* in = 0;
  35     size_t ilen = 0;
  36     char* out = 0;
  37     size_t olen = 0;
  38     iconv(conv, &in, &ilen, &out, &olen);
  39     return 0;
  40   }
  41 " ICONV_SECOND_ARGUMENT_IS_CONST )
  42 ENDIF(ICONV_FOUND)
  43 set(CMAKE_REQUIRED_INCLUDES)
  44 set(CMAKE_REQUIRED_LIBRARIES)
  45
  46 IF(ICONV_FOUND)
  47   IF(NOT ICONV_FIND_QUIETLY)
  48     MESSAGE(STATUS "Found Iconv: ${ICONV_LIBRARIES}")
  49   ENDIF(NOT ICONV_FIND_QUIETLY)
  50 ELSE(ICONV_FOUND)
  51   IF(Iconv_FIND_REQUIRED)
  52     MESSAGE(FATAL_ERROR "Could not find Iconv")
  53   ENDIF(Iconv_FIND_REQUIRED)
  54 ENDIF(ICONV_FOUND)
  55
  56 MARK_AS_ADVANCED(
  57   ICONV_INCLUDE_DIR
  58   ICONV_LIBRARIES
  59   ICONV_SECOND_ARGUMENT_IS_CONST
  60 )