set(GLIB2_LIBRARIES "GLIB2_LIBRARIES-NOTFOUND")

if(GLIB2_INCLUDE_DIR AND GLIB2_LIBRARIES)
    # Already in cache, be silent
    set(GLIB2_FIND_QUIETLY TRUE)
endif(GLIB2_INCLUDE_DIR AND GLIB2_LIBRARIES)

if (NOT WIN32)
   find_package(PkgConfig REQUIRED)
   pkg_check_modules(PKG_GLIB REQUIRED glib-2.0)
endif(NOT WIN32)

find_path(GLIB2_MAIN_INCLUDE_DIR glib.h
          PATH_SUFFIXES glib-2.0
          PATHS ${PKG_GLIB_INCLUDE_DIRS} )

# search the glibconfig.h include dir under the same root where the library is found
find_library(GLIB2_LIBRARIES
             NAMES glib-2.0
             PATHS ${PKG_GLIB_LIBRARY_DIRS} )

find_library(GLIB2_THREAD
             NAMES gthread-2.0
             PATHS ${PKG_GLIB_LIBRARY_DIRS} )

find_path(GLIB2_INTERNAL_INCLUDE_DIR glibconfig.h
          PATH_SUFFIXES glib-2.0/include
          PATHS ${PKG_GLIB_INCLUDE_DIRS} ${PKG_GLIB_LIBRARIES} ${CMAKE_SYSTEM_LIBRARY_PATH})

if(GLIB2_THREAD)
	set(GLIB2_LIBRARIES ${GLIB2_LIBRARIES} ${GLIB2_THREAD})
else(GLIB2_THREAD)
	message( FATAL_ERROR "Could NOT find gthread-2.0" )
endif(GLIB2_THREAD)


set(GLIB2_INCLUDE_DIR ${GLIB2_MAIN_INCLUDE_DIR})

# not sure if this include dir is optional or required
# for now it is optional
if(GLIB2_INTERNAL_INCLUDE_DIR)
  set(GLIB2_INCLUDE_DIR ${GLIB2_INCLUDE_DIR} ${GLIB2_INTERNAL_INCLUDE_DIR})
  set(GLIB2_FOUND TRUE)
endif(GLIB2_INTERNAL_INCLUDE_DIR)

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(GLIB2  DEFAULT_MSG  GLIB2_LIBRARIES GLIB2_MAIN_INCLUDE_DIR)

mark_as_advanced(GLIB2_INCLUDE_DIR GLIB2_LIBRARIES)