# from http://code.google.com/p/low-cost-vision-2012/source/browse/CMakeModules/FindZBar0.cmake?name=2-helium-1&r=d61f248bd5565b3c086bf4769a04bfd98f7079df
# - Try to find ZBar
# This will define
#
#  ZBAR_FOUND - 
#  ZBAR_LIBRARY_DIR - 
#  ZBAR_INCLUDE_DIR - 
#  ZBAR_LIBRARIES - 
#

find_package(PkgConfig)
if(PkgConfig_FOUND)
  pkg_check_modules(PC_ZBAR QUIET zbar)
  if(PC_ZBAR_FOUND)
    set(ZBAR_DEFINITIONS ${PC_ZBAR_CFLAGS_OTHER})
    find_library(ZBAR_LIBRARIES NAMES zbar HINTS ${PC_ZBAR_LIBDIR} ${PC_ZBAR_LIBRARY_DIRS})
    find_path(ZBAR_INCLUDE_DIR Decoder.h HINTS ${PC_ZBAR_INCLUDEDIR} ${PC_ZBAR_INCLUDE_DIRS} PATH_SUFFIXES zbar)
  endif()
endif()

if(NOT ZBAR_LIBRARIES AND ANDROID)
  find_library(ZBARJNI_LIBRARY NAMES zbarjni)
  find_library(ICONV_LIBRARY NAMES iconv)
  if(ZBARJNI_LIBRARY AND ICONV_LIBRARY)
    set(ZBAR_LIBRARIES ${ZBARJNI_LIBRARY} ${ICONV_LIBRARY})
  endif()
endif()

if(NOT ZBAR_INCLUDE_DIR)
  find_path(ZBAR_H_PATH zbar.h)
  if(ZBAR_H_PATH)
    set(ZBAR_INCLUDE_DIR "${ZBAR_H_PATH}/zbar")
  endif()
endif()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(ZBAR  DEFAULT_MSG  ZBAR_LIBRARIES ZBAR_INCLUDE_DIR)
message(STATUS "Found zbar libraries ${ZBAR_LIBRARIES}")