IF(HAVE_OSG)
  ADD_SUBDIRECTORY(prc)
ENDIF (HAVE_OSG)

IF(HAVE_BOOST)
  ADD_SUBDIRECTORY(lib2geom)
ENDIF(HAVE_BOOST)

ADD_SUBDIRECTORY(wpg)
ADD_SUBDIRECTORY(pgf)
ADD_SUBDIRECTORY(rtf-qt)
ADD_SUBDIRECTORY(zip)
