FindPIL.cmake

#--------------------------------------------------------------------------------
# Copyright (c) 2012-2013, Lars Baehren <lbaehren@gmail.com>
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#
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#    list of conditions and the following disclaimer.
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#--------------------------------------------------------------------------------

# - Check for the presence of PIL
#
# The following variables are set when PIL is found:
#  PIL_FOUND      = Set to true, if all components of PIL have been found.
#  PIL_INCLUDES   = Include path for the header files of PIL
#  PIL_LIBRARIES  = Link these to use PIL
#  PIL_LFLAGS     = Linker flags (optional)

if (NOT PIL_FOUND)

  if (NOT PIL_ROOT_DIR)
    set (PIL_ROOT_DIR ${CMAKE_INSTALL_PREFIX})
  endif (NOT PIL_ROOT_DIR)

  ##_____________________________________________________________________________
  ## Check for the header files

  find_path (PIL_INCLUDES pil.h
    HINTS ${PIL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
    PATH_SUFFIXES include include/pil
    )

  ##_____________________________________________________________________________
  ## Check for the library

  find_library (PIL_LIBRARIES pil
    HINTS ${PIL_ROOT_DIR} ${CMAKE_INSTALL_PREFIX}
    PATH_SUFFIXES lib
    )

  ##_____________________________________________________________________________
  ## Actions taken when all components have been found

  find_package_handle_standard_args (PIL DEFAULT_MSG PIL_LIBRARIES PIL_INCLUDES)

  if (PIL_FOUND)
    if (NOT PIL_FIND_QUIETLY)
      message (STATUS "Found components for PIL")
      message (STATUS "PIL_ROOT_DIR  = ${PIL_ROOT_DIR}")
      message (STATUS "PIL_INCLUDES  = ${PIL_INCLUDES}")
      message (STATUS "PIL_LIBRARIES = ${PIL_LIBRARIES}")
    endif (NOT PIL_FIND_QUIETLY)
  else (PIL_FOUND)
    if (PIL_FIND_REQUIRED)
      message (FATAL_ERROR "Could not find PIL!")
    endif (PIL_FIND_REQUIRED)
  endif (PIL_FOUND)

  ##_____________________________________________________________________________
  ## Mark advanced variables

  mark_as_advanced (
    PIL_ROOT_DIR
    PIL_INCLUDES
    PIL_LIBRARIES
    )

endif (NOT PIL_FOUND)