external/tinygettext/FindICONV.cmake

   1 #
   2 #  Copyright (c) 2006, Peter Kümmel, <syntheticpp@gmx.net>
   3 #
   4 #  Redistribution and use in source and binary forms, with or without
   5 #  modification, are permitted provided that the following conditions
   6 #  are met:
   7 #
   8 #  1. Redistributions of source code must retain the copyright
   9 #     notice, this list of conditions and the following disclaimer.
  10 #  2. Redistributions in binary form must reproduce the copyright
  11 #     notice, this list of conditions and the following disclaimer in the
  12 #     documentation and/or other materials provided with the distribution.
  13 #  3. The name of the author may not be used to endorse or promote products
  14 #     derived from this software without specific prior written permission.
  15 #
  16 #  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17 #  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18 #  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19 #  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20 #  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21 #  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 #  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 #  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 #  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25 #  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
  29
  30 if (ICONV_INCLUDE_DIR)
  31   # Already in cache, be silent
  32   set(ICONV_FIND_QUIETLY TRUE)
  33 endif()
  34
  35 find_path(ICONV_INCLUDE_DIR iconv.h
  36  /usr/include
  37  /usr/local/include)
  38
  39 set(POTENTIAL_ICONV_LIBS iconv libiconv libiconv2)
  40
  41 find_library(ICONV_LIBRARY NAMES ${POTENTIAL_ICONV_LIBS}
  42         PATHS /usr/lib /usr/local/lib)
  43
  44 if(WIN32)
  45         set(ICONV_DLL_NAMES iconv.dll  libiconv.dll libiconv2.dll)
  46         find_file(ICONV_DLL
  47                                         NAMES ${ICONV_DLL_NAMES}
  48                                         PATHS ENV PATH
  49                                         NO_DEFAULT_PATH)
  50         find_file(ICONV_DLL_HELP
  51                                         NAMES ${ICONV_DLL_NAMES}
  52                                         PATHS ENV PATH
  53                                         ${ICONV_INCLUDE_DIR}/../bin)
  54         if(ICONV_FIND_REQUIRED)
  55                 if(NOT ICONV_DLL AND NOT ICONV_DLL_HELP)
  56                         message(FATAL_ERROR "Could not find iconv.dll, please add correct your PATH environment variable")
  57                 endif()
  58                 if(NOT ICONV_DLL AND ICONV_DLL_HELP)
  59                         get_filename_component(ICONV_DLL_HELP ${ICONV_DLL_HELP} PATH)
  60                         message(STATUS)
  61                         message(STATUS "Could not find iconv.dll in standard search path, please add ")
  62                         message(STATUS "${ICONV_DLL_HELP}")
  63                         message(STATUS "to your PATH environment variable.")
  64                         message(STATUS)
  65                         message(FATAL_ERROR "exit cmake")
  66                 endif()
  67         endif()
  68         if(ICONV_INCLUDE_DIR AND ICONV_LIBRARY AND ICONV_DLL)
  69                 set(ICONV_FOUND TRUE)
  70         endif()
  71 else()
  72         include(CheckFunctionExists)
  73         check_function_exists(iconv HAVE_ICONV_IN_LIBC)
  74         if(ICONV_INCLUDE_DIR AND HAVE_ICONV_IN_LIBC)
  75                 set(ICONV_FOUND TRUE)
  76                 set(ICONV_LIBRARY  CACHE TYPE STRING FORCE)
  77         endif()
  78         if(ICONV_INCLUDE_DIR AND ICONV_LIBRARY)
  79                 set(ICONV_FOUND TRUE)
  80         endif()
  81 endif()
  82
  83
  84
  85 if(ICONV_FOUND)
  86    if(NOT ICONV_FIND_QUIETLY)
  87       message(STATUS "Found iconv library: ${ICONV_LIBRARY}")
  88       #message(STATUS "Found iconv   dll  : ${ICONV_DLL}")
  89    endif()
  90 else()
  91    if(ICONV_FIND_REQUIRED)
  92       message(STATUS "Looked for iconv library named ${POTENTIAL_ICONV_LIBS}.")
  93       message(STATUS "Found no acceptable iconv library. This is fatal.")
  94       message(STATUS "iconv header: ${ICONV_INCLUDE_DIR}")
  95       message(STATUS "iconv lib   : ${ICONV_LIBRARY}")
  96       message(FATAL_ERROR "Could NOT find iconv library")
  97    endif()
  98 endif()
  99
 100 mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)