--- iproute2-4.20.0/tc/Makefile.orig 2019-01-13 21:26:02.916353879 +0200 +++ iproute2-4.20.0/tc/Makefile 2019-01-13 21:28:07.158790586 +0200 @@ -158,13 +158,13 @@ clean: rm -f emp_ematch.yacc.* q_atm.so: q_atm.c - $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o q_atm.so q_atm.c -latm + $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -Wl,--undefined -shared -fpic -o q_atm.so q_atm.c -latm m_xt.so: m_xt.c - $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o m_xt.so m_xt.c $$($(PKG_CONFIG) xtables --cflags --libs) + $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -Wl,--undefined -shared -fpic -o m_xt.so m_xt.c $$($(PKG_CONFIG) xtables --cflags --libs) m_xt_old.so: m_xt_old.c - $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o m_xt_old.so m_xt_old.c $$($(PKG_CONFIG) xtables --cflags --libs) + $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -Wl,--undefined -shared -fpic -o m_xt_old.so m_xt_old.c $$($(PKG_CONFIG) xtables --cflags --libs) em_ipset.o: CFLAGS += $$($(PKG_CONFIG) xtables --cflags)