_phing_does_target_list_need_generating () {
   if [ ! -f .phing_targets ]; then return 0;
   else
     accurate=$(stat -f%m .phing_targets)
     changed=$(stat -f%m build.xml)
     return $(expr $accurate '>=' $changed)
   fi
 }
 
 _phing () {
   if [ -f build.xml ]; then
     if _phing_does_target_list_need_generating; then
       phing -l |grep -v ":" |grep -v "^$"|grep -v "\-" > .phing_targets
     fi
     compadd `cat .phing_targets`
   fi
 }
 
 compdef _phing phing