Hi, Successfully compiled on Raspberry PI for armv6(hf). root@rpi:/opt/kamailio# ./sbin/kamailio -V version: kamailio 4.1.0-dev1 (arm6/linux) 7d46ff flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT-NOSMP, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 4MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 7d46ff compiled on 22:47:35 Mar 13 2013 with gcc 4.6.3 A process of compilation is exactly the same, but need to add CC_EXTRA_OPTS=-DNOSMP because SMP is not supported for arm atomic operations. You can add this remark in WIKI if you need.