**core/ut.h:751** ``` core/ut.h:751:13: warning: ‘shm_str_dup_block’ defined but not used [-Wunused-function] static str* shm_str_dup_block(const str* src) ^~~~~~~~~~~~~~~~~ CC (gcc) [kamailio] core/proxy.o In file included from core/ip_addr.h:39, from core/proxy.h:32, from core/proxy.c:33: ```