defineReplace(searchTop) {
  TOPPATH= .. ../.. ../../.. ../../../.. ../../../../.. ../../../../../..
  RET =
  for(cdir, $$list($$TOPPATH)) {
     message("prf f $$cdir -- $$RET")
     isEmpty(RET):exists($(cdir)/options.pri)   {
      message("found at $$cdir")									      RET=$$cdir
	}
   }
return($$RET)        
}

message("prf PROJECT_TOP=$$PROJECT_TOP")

isEmpty(PROJECT_TOP)
	{
		PROJECT_TOP=$$searchTop()
		message("prf1 PROJECT_TOP=$$PROJECT_TOP")
	}