Index: boot/Makefile.build
===================================================================
--- boot/Makefile.build	(revision 7f881cd8e3ac707b5ae404c782b53844495e1a1e)
+++ boot/Makefile.build	(revision cecba66ea48d60cfa59865e98aeda663808e42c7)
@@ -93,11 +93,11 @@
 
 %.o: %.s | depend
-	$(CC_JOB) -c -MD $(DEFS) $(CFLAGS) $(AS_CFLAGS) -D__ASM__
+	$(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS) $(AS_CFLAGS) -D__ASM__
 
 %.o: %.S | depend
-	$(CC_JOB) -c -MD $(DEFS) $(CFLAGS) $(AS_CFLAGS) -D__ASM__
+	$(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS) $(AS_CFLAGS) -D__ASM__
 
 %.o: %.c | depend
-	$(CC_JOB) -c -MD $(DEFS) $(CFLAGS)
+	$(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS)
 
 depend: $(PRE_DEPEND)