diff --git a/sim/mcore/ChangeLog b/sim/mcore/ChangeLog
index 5e3bf17058..5d9fb6b5bb 100644
--- a/sim/mcore/ChangeLog
+++ b/sim/mcore/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-14  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (SIM_EXTRA_CLEAN): Delete.
+	(interp.o, mcore-clean): Delete rules.
+
 2015-03-14  Mike Frysinger  <vapier@gentoo.org>
 
 	* Makefile.in (SIM_EXTRA_CFLAGS): Set to
diff --git a/sim/mcore/Makefile.in b/sim/mcore/Makefile.in
index a1110b2cb3..8fbe0d3696 100644
--- a/sim/mcore/Makefile.in
+++ b/sim/mcore/Makefile.in
@@ -23,10 +23,5 @@ SIM_EXTRA_CFLAGS = -DSIM_USE_DEPRECATED_RUN_FRONTEND
 
 SIM_OBJS = interp.o sim-load.o
 SIM_EXTRA_LIBS = -lm
-SIM_EXTRA_CLEAN = mcore-clean
 
 ## COMMON_POST_CONFIG_FRAG
-
-interp.o: interp.c
-
-mcore-clean:
diff --git a/sim/moxie/ChangeLog b/sim/moxie/ChangeLog
index 8e2f5fbe9c..bcdc1fa9ab 100644
--- a/sim/moxie/ChangeLog
+++ b/sim/moxie/ChangeLog
@@ -1,3 +1,9 @@
+2015-03-14  Mike Frysinger  <vapier@gentoo.org>
+
+	* Makefile.in (SIM_EXTRA_CLEAN): Delete.
+	(all): Drop interp.o dependency.
+	(interp.o, mcore-clean): Delete rules.
+
 2015-03-14  Mike Frysinger  <vapier@gentoo.org>
 
 	* Makefile.in (SIM_EXTRA_CFLAGS): Set to
diff --git a/sim/moxie/Makefile.in b/sim/moxie/Makefile.in
index 1f7587c579..8f1a2aa656 100644
--- a/sim/moxie/Makefile.in
+++ b/sim/moxie/Makefile.in
@@ -29,15 +29,12 @@ sim-engine.o sim-fpu.o sim-bits.o sim-profile.o sim-events.o \
 sim-memopt.o
 
 SIM_EXTRA_LIBS = -lm -lz
-SIM_EXTRA_CLEAN = moxie-clean
 SIM_EXTRA_INSTALL = install-dtb
 SIM_CFLAGS = -DDTB="\"$(dtbdir)/moxie-gdb.dtb\""
 
 ## COMMON_POST_CONFIG_FRAG
 
-all: interp.o moxie-gdb.dtb
-
-interp.o: interp.c
+all: moxie-gdb.dtb
 
 moxie-gdb.dtb: moxie-gdb.dts
 	dtc -O dtb -o moxie-gdb.dtb ${srcdir}/moxie-gdb.dts
@@ -45,5 +42,3 @@ moxie-gdb.dtb: moxie-gdb.dts
 install-dtb: moxie-gdb.dtb
 	$(SHELL) $(srcdir)/../../mkinstalldirs $(DESTDIR)$(dtbdir)
 	$(INSTALL_DATA) moxie-gdb.dtb $(DESTDIR)$(dtbdir)/moxie-gdb.dtb
-
-moxie-clean: