- rm -rf *.bit *.bgn *.mcs *.prm *.bld *.drc *.mcs *.ncd *.ngc *.ngd
- rm -rf *.ngr *.pad *.par *.pcf *.prm *.syr *.twr *.twx *.xpi *.lso *.prm *.mcs _impact*
- rm -rf $(PROJECT)_map.* $(PROJECT)_pad.*
- rm -rf _ngo xst
- rm -rf build.log
- rm -rf $(PROJECT).unroutes *.xml
+ rm -f *.bit *.bgn *.mcs *.prm *.bld *.drc *.mcs *.ncd *.ngc *.ngd
+ rm -f *.ngr *.pad *.par *.pcf *.prm *.syr *.twr *.twx *.xpi *.lso *.prm *.mcs _impact*
+ rm -f $(PROJECT)_map.* $(PROJECT)_pad.*
+ rm -f _ngo xst
+ rm -f build.log
+ rm -f $(PROJECT).unroutes *.xml