# - Try to find the Imlib graphics library
# Once done this will define
#
#  IMLIB_FOUND - system has IMLIB
#  IMLIB_INCLUDE_DIR - the IMLIB include directory
#  IMLIB_LIBRARIES - Link these to use IMLIB
#  IMLIB_DEFINITIONS - Compiler switches required for using IMLIB
#

IF (DEFINED CACHED_IMLIB)

  # in cache already
  IF ("${CACHED_IMLIB}" STREQUAL "YES")
    SET(IMLIB_FOUND TRUE)
  ENDIF ("${CACHED_IMLIB}" STREQUAL "YES")

ELSE (DEFINED CACHED_IMLIB)

  # use pkg-config to get the directories and then use these values
  # in the FIND_PATH() and FIND_LIBRARY() calls
  INCLUDE(UsePkgConfig)
  
  PKGCONFIG(libagg _IMLIBIncDir _IMLIBLinkDir _IMLIBLinkFlags _IMLIBCflags)
  
  set(IMLIB_DEFINITIONS ${_IMLIBCflags})
  
  FIND_PATH(IMLIB_INCLUDE_DIR Imlib.h
    ${_IMLIBIncDir}
    /usr/include
    /usr/local/include
  )
  
  FIND_LIBRARY(IMLIB_LIBRARIES NAMES Imlib
    PATHS
    ${_IMLIBLinkDir}
    /usr/lib
    /usr/local/lib
  )
  
  if (IMLIB_INCLUDE_DIR AND IMLIB_LIBRARIES)
     SET(imlib_found true)
  endif (IMLIB_INCLUDE_DIR AND IMLIB_LIBRARIES)
  
  if (IMLIB_FOUND)
    set(CACHED_IMLIB "YES")
    if (NOT IMLIB_FIND_QUIETLY)
      message(STATUS "Found IMLIB: ${IMLIB_LIBRARIES}")
    endif (NOT IMLIB_FIND_QUIETLY)
  else (IMLIB_FOUND)
    set(CACHED_IMLIB "NO")
    if (IMLIB_FIND_REQUIRED)
      message(FATAL_ERROR "Could NOT find IMLIB")
    endif (IMLIB_FIND_REQUIRED)
  endif (IMLIB_FOUND)
  
  MARK_AS_ADVANCED(IMLIB_INCLUDE_DIR IMLIB_LIBRARIES)
  
  set(CACHED_IMLIB ${CACHED_IMLIB} CACHE INTERNAL "If liImlib was checked")

ENDIF (DEFINED CACHED_IMLIB)