s390 needs libgcc substitute, apparently

diff --git a/klibc/arch/s390/Makefile.inc b/klibc/arch/s390/Makefile.inc
index 45aa551..c50f4f2 100644
--- a/klibc/arch/s390/Makefile.inc
+++ b/klibc/arch/s390/Makefile.inc
@@ -8,7 +8,12 @@
 #
 
 ARCHOBJS = \
-	arch/$(ARCH)/setjmp.o
+	arch/$(ARCH)/setjmp.o \
+	libgcc/__divdi3.o \
+	libgcc/__moddi3.o \
+	libgcc/__udivdi3.o \
+	libgcc/__umoddi3.o \
+	libgcc/__udivmoddi4.o
 
 ARCHSOOBJS = $(patsubst %.o,%.lo,$(ARCHOBJS))