Index: boot/arch/ppc32/loader/Makefile.build
===================================================================
--- boot/arch/ppc32/loader/Makefile.build	(revision 812355884f3878eb249907e2c43d2db6a913e1ff)
+++ boot/arch/ppc32/loader/Makefile.build	(revision 94790d01466eefddc7dfc66d4537c2a02abef404)
@@ -66,7 +66,13 @@
 %.o: %.S $(DEPEND)
 	$(CC) $(DEFS) $(CFLAGS) -D__ASM__ -c $< -o $@
+ifeq ($(PRECHECK),y)
+	$(JOBFILE) $(JOB) $< $@ as asm/preproc $(DEFS) $(CFLAGS) -D__ASM__
+endif
 
 %.o: %.c $(DEPEND)
 	$(CC) $(DEFS) $(CFLAGS) -c $< -o $@
+ifeq ($(PRECHECK),y)
+	$(JOBFILE) $(JOB) $< $@ cc core $(DEFS) $(CFLAGS)
+endif
 
 $(DEPEND):