From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1075961

``` kamailio currently FTBFS on s390x, but built there before. The same problem can be observed on ppc64:

https://buildd.debian.org/status/fetch.php?pkg=kamailio&arch=s390x&v...

hep.c: In function ‘hepv3_get_chunk’: hep.c:985:41: error: implicit declaration of function ‘inet_ntop’ [-Werror=implicit-function-declaration] 985 | inet_ntop(AF_INET, &(hg->hep_src_ip4->data), ipstr, | ^~~~~~~~~ gcc -fPIC -DPIC -pthread -DKSR_PTHREAD_MUTEX_SHARED -Wall -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DVERSION_NODATE -DNAME='"kamailio"' -DVERSION='"5.8.2"' -DARCH='"s390x"' -DOS='linux_' -DOS_QUOTED='"linux"' -DCOMPILER='"gcc 13.3.0"' -D__CPU_s390x -D__OS_linux -DVERSIONVAL=5008002 -DCFG_DIR='"/etc/kamailio/"' -DSHARE_DIR='"/usr/share/kamailio/"' -DRUN_DIR='"/var/run/kamailio/"' -DPKG_MALLOC -DSHM_MMAP -DDNS_IP_HACK -DUSE_MCAST -DUSE_TCP -DDISABLE_NAGLE -DHAVE_RESOLV_RES -DUSE_DNS_CACHE -DUSE_DNS_FAILOVER -DUSE_DST_BLOCKLIST -DUSE_NAPTR -DMEM_JOIN_FREE -DF_MALLOC -DQ_MALLOC -DTLSF_MALLOC -DDBG_SR_MEMORY -DUSE_TLS -DTLS_HOOKS -DUSE_CORE_STATS -DSTATISTICS -DMALLOC_STATS -DUSE_SCTP -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD -DHAVE_MSG_NOSIGNAL -DHAVE_MSGHDR_MSG_CONTROL -DHAVE_ALLOCA_H -DHAVE_TIMEGM -DHAVE_SCHED_SETSCHEDULER -DHAVE_IP_MREQN -DUSE_RAW_SOCKS -DUSE_PTHREAD_MUTEX -DHAVE_EPOLL -DHAVE_SIGIO_RT -DSIGINFO64_WORKAROUND -DUSE_FUTEX -DHAVE_SELECT -DMOD_NAME='"sipcapture"' -DMOD_NAMEID='sipcapture' -c sipcapture.c -o sipcapture.o -MMD -MP In file included from ../../core/atomic_ops.h:180, from ../../core/locking.h:72, from ../../core/rpc.h:34, from ../../core/sr_module.h:36, from sipcapture.c:54: ... make[4]: *** [../../Makefile.rules:100: hep.o] Error 1 ```