Index: sys/modules/sound/sound/Makefile
===================================================================
--- sys/modules/sound/sound/Makefile	(revision 193889)
+++ sys/modules/sound/sound/Makefile	(working copy)
@@ -19,13 +19,19 @@
 SRCS+=	mixer.c sndstat.c sound.c unit.c vchan.c
 SRCS+=	midi.c mpu401.c sequencer.c
 
-feeder_eq_gen.h:	@ @/tools/sound/feeder_eq_mkfilter.awk machine
+@/tools/sound/feeder_eq_mkfilter.awk:	@ machine
+
+@/tools/sound/feeder_rate_mkfilter.awk:	@ machine
+
+@/tools/sound/snd_fxdiv_gen.awk:	@ machine
+
+feeder_eq_gen.h:	@/tools/sound/feeder_eq_mkfilter.awk
 	${AWK} -f @/tools/sound/feeder_eq_mkfilter.awk -- ${FEEDER_EQ_PRESETS} > ${.TARGET}
 
-feeder_rate_gen.h:	@ @/tools/sound/feeder_rate_mkfilter.awk machine
+feeder_rate_gen.h:	@/tools/sound/feeder_rate_mkfilter.awk
 	${AWK} -f @/tools/sound/feeder_rate_mkfilter.awk -- ${FEEDER_RATE_PRESETS} > ${.TARGET}
 
-snd_fxdiv_gen.h:	@ @/tools/sound/snd_fxdiv_gen.awk machine
+snd_fxdiv_gen.h:	@/tools/sound/snd_fxdiv_gen.awk
 	${AWK} -f @/tools/sound/snd_fxdiv_gen.awk -- > ${.TARGET}
 
 CLEANFILES+=	feeder_eq_gen.h feeder_rate_gen.h snd_fxdiv_gen.h