add new guys
diff --git a/src/cmd/mkfile b/src/cmd/mkfile
index 1b064eb..ab34826 100644
--- a/src/cmd/mkfile
+++ b/src/cmd/mkfile
@@ -1,8 +1,7 @@
<$PLAN9/src/mkhdr
-TARG=`ls *.c | sed 's/\.c//'`
-LDFLAGS=$LDFLAGS -L$X11/lib -lX11
-SHORTLIB=sec fs mux regexp9 draw thread bio 9
+TARG=`ls *.[cy] | sed 's/\.c//'`
+SHORTLIB=sec fs mux regexp9 thread bio 9
<$PLAN9/src/mkmany
@@ -11,4 +10,21 @@
<$PLAN9/src/mkdirs
-dir-install: $PLAN9/bin/yacc
+dir-all dir-install: $PLAN9/bin/9yacc
+
+XLIB=draw bio 9
+$O.clock: clock.$O ${XLIB:%=$PLAN9/lib/lib%.a}
+ $LD -o $target $prereq -L$X11/lib -lX11
+
+$O.tweak: tweak.$O ${XLIB:%=$PLAN9/lib/lib%.a}
+ $LD -o $target $prereq -L$X11/lib -lX11
+
+%.tab.h %.tab.c: %.y
+ $YACC $YFLAGS -s $stem $prereq
+
+%.o: %.tab.c
+ 9c -o $target $stem.tab.c
+
+CLEANFILES=$CLEANFILES bc.tab.[ch] units.tab.[ch]
+
+
