CMake/FindGD.cmake

   1 # - Find GD
   2 # Find the native GD includes and library
   3 # This module defines
   4 #  GD_INCLUDE_DIR, where to find gd.h, etc.
   5 #  GD_LIBRARIES, the libraries needed to use GD.
   6 #  GD_FOUND, If false, do not try to use GD.
   7 # also defined, but not for general use are
   8 #  GD_LIBRARY, where to find the GD library.
   9 #  GD_SUPPORTS_PNG, GD_SUPPORTS_JPEG, GD_SUPPORTS_GIF, test
  10 #  support for image formats in GD.
  11
  12 FIND_PATH(GD_INCLUDE_DIR gd.h
  13 /usr/local/include
  14 /usr/include
  15 )
  16
  17 if(WIN32 AND NOT CYGWIN)
  18   SET(GD_NAMES ${GD_NAMES} bgd)
  19 else(WIN32)
  20   SET(GD_NAMES ${GD_NAMES} gd)
  21 endif(WIN32 AND NOT CYGWIN)
  22
  23 FIND_LIBRARY(GD_LIBRARY
  24   NAMES ${GD_NAMES}
  25   PATHS /usr/lib64 /usr/lib /usr/local/lib
  26   )
  27
  28 IF (GD_LIBRARY AND GD_INCLUDE_DIR)
  29     SET(GD_LIBRARIES ${GD_LIBRARY})
  30     SET(GD_FOUND "YES")
  31 ELSE (GD_LIBRARY AND GD_INCLUDE_DIR)
  32   SET(GD_FOUND "NO")
  33 ENDIF (GD_LIBRARY AND GD_INCLUDE_DIR)
  34
  35 IF (GD_FOUND)
  36         IF (WIN32 AND NOT CYGWIN)
  37                 SET(GD_SUPPORTS_PNG ON)
  38                 SET(GD_SUPPORTS_JPEG ON)
  39                 SET(GD_SUPPORTS_GIF ON)
  40                 get_filename_component(GD_LIBRARY_DIR ${GD_LIBRARY} PATH)
  41         ELSE (WIN32 AND NOT CYGWIN)
  42                 INCLUDE(CheckLibraryExists)
  43                 GET_FILENAME_COMPONENT(GD_LIB_PATH ${GD_LIBRARY} PATH)
  44                 GET_FILENAME_COMPONENT(GD_LIB ${GD_LIBRARY} NAME)
  45
  46                 CHECK_LIBRARY_EXISTS("${GD_LIBRARY}" "gdImagePng" "${GD_LIB_PATH}" GD_SUPPORTS_PNG)
  47                 IF (GD_SUPPORTS_PNG)
  48                         find_package(PNG)
  49                         IF (PNG_FOUND)
  50                                 SET(GD_LIBRARIES ${GD_LIBRARIES} ${PNG_LIBRARIES})
  51                         SET(GD_INCLUDE_DIR ${GD_INCLUDE_DIR} ${PNG_INCLUDE_DIR})
  52                         ELSE (PNG_FOUND)
  53                                 SET(GD_SUPPORTS_PNG "NO")
  54                         ENDIF (PNG_FOUND)
  55                 ENDIF (GD_SUPPORTS_PNG)
  56
  57                 CHECK_LIBRARY_EXISTS("${GD_LIBRARY}" "gdImageJpeg" "${GD_LIB_PATH}" GD_SUPPORTS_JPEG)
  58                 IF (GD_SUPPORTS_JPEG)
  59                         find_package(JPEG)
  60                         IF (JPEG_FOUND)
  61                                 SET(GD_LIBRARIES ${GD_LIBRARIES} ${JPEG_LIBRARIES})
  62                                 SET(GD_INCLUDE_DIR ${GD_INCLUDE_DIR} ${JPEG_INCLUDE_DIR})
  63                         ELSE (JPEG_FOUND)
  64                                 SET(GD_SUPPORTS_JPEG "NO")
  65                         ENDIF (JPEG_FOUND)
  66                 ENDIF (GD_SUPPORTS_JPEG)
  67
  68                 CHECK_LIBRARY_EXISTS("${GD_LIBRARY}" "gdImageGif" "${GD_LIB_PATH}" GD_SUPPORTS_GIF)
  69
  70                 # Trim the list of include directories
  71                 SET(GDINCTRIM)
  72                 FOREACH(GD_DIR ${GD_INCLUDE_DIR})
  73                         SET(GD_TMP_FOUND OFF)
  74                         FOREACH(GD_TRIMMED ${GDINCTRIM})
  75                                 IF ("${GD_DIR}" STREQUAL "${GD_TRIMMED}")
  76                                 SET(GD_TMP_FOUND ON)
  77                                 ENDIF ("${GD_DIR}" STREQUAL "${GD_TRIMMED}")
  78                         ENDFOREACH(GD_TRIMMED ${GDINCTRIM})
  79                         IF (NOT GD_TMP_FOUND)
  80                                 SET(GDINCTRIM "${GDINCTRIM}" "${GD_DIR}")
  81                         ENDIF (NOT GD_TMP_FOUND)
  82                 ENDFOREACH(GD_DIR ${GD_INCLUDE_DIR})
  83                 SET(GD_INCLUDE_DIR ${GDINCTRIM})
  84
  85                 SET(GD_LIBRARY_DIR)
  86
  87                 # Generate trimmed list of library directories and list of libraries
  88                 FOREACH(GD_LIB ${GD_LIBRARIES})
  89                         GET_FILENAME_COMPONENT(GD_NEXTLIBDIR ${GD_LIB} PATH)
  90                         SET(GD_TMP_FOUND OFF)
  91                         FOREACH(GD_LIBDIR ${GD_LIBRARY_DIR})
  92                                 IF ("${GD_NEXTLIBDIR}" STREQUAL "${GD_LIBDIR}")
  93                                         SET(GD_TMP_FOUND ON)
  94                                 ENDIF ("${GD_NEXTLIBDIR}" STREQUAL "${GD_LIBDIR}")
  95                         ENDFOREACH(GD_LIBDIR ${GD_LIBRARIES})
  96                         IF (NOT GD_TMP_FOUND)
  97                                 SET(GD_LIBRARY_DIR "${GD_LIBRARY_DIR}" "${GD_NEXTLIBDIR}")
  98                         ENDIF (NOT GD_TMP_FOUND)
  99                 ENDFOREACH(GD_LIB ${GD_LIBRARIES})
 100         ENDIF (WIN32 AND NOT CYGWIN)
 101 ENDIF (GD_FOUND)
 102
 103 IF (GD_FOUND)
 104    IF (NOT GD_FIND_QUIETLY)
 105       MESSAGE(STATUS "Found GD: ${GD_LIBRARY}")
 106    ENDIF (NOT GD_FIND_QUIETLY)
 107 ELSE (GD_FOUND)
 108    IF (GD_FIND_REQUIRED)
 109       MESSAGE(FATAL_ERROR "Could not find GD library")
 110    ENDIF (GD_FIND_REQUIRED)
 111 ENDIF (GD_FOUND)
 112
 113 MARK_AS_ADVANCED(
 114   GD_LIBRARY
 115   GD_LIBRARIES
 116   GD_INCLUDE_DIR
 117   GD_LIBRARY_DIR
 118   GD_SUPPORTS_PNG
 119   GD_SUPPORTS_JPEG
 120   GD_SUPPORTS_GIF
 121 )