clean:
	cd calc
        nmake clean
        cd ..
	cd cgi
        nmake clean
        cd ..
	cd helpsigs
        nmake clean
        cd ..
	cd lexyacc
        nmake clean
        cd ..
	cd manual
        nmake clean
        cd ..
	cd mls
        nmake clean
        cd ..
	cd pretty
        nmake clean
        cd ..