Hello list. I'm using the GIT versión of Kamailio 3.0. When I add memcached in the compilation I got the next error : make[1]: Entering directory `/usr/src/kamailio/modules_k/memcached' gcc -fPIC -DPIC -g -O9 -funroll-loops -Wcast-align -m32 -minline-all-stringops -falign-loops -ftree-vectorize -fno-strict-overflow -mtune=athlon64 -Wall -DNAME='"kamailio"' -DVERSION='"3.0.2"' -DARCH='"i386"' -DOS='linux_' -DOS_QUOTED='"linux"' -DCOMPILER='"gcc 4.4.4"' -D__CPU_i386 -D__OS_linux -DSER_VER=3000002 -DCFG_DIR='"/usr/local/etc/kamailio/"' -DPKG_MALLOC -DSHM_MEM -DSHM_MMAP -DDNS_IP_HACK -DUSE_IPV6 -DUSE_MCAST -DUSE_TCP -DDISABLE_NAGLE -DHAVE_RESOLV_RES -DUSE_DNS_CACHE -DUSE_DNS_FAILOVER -DUSE_DST_BLACKLIST -DUSE_NAPTR -DF_MALLOC -DUSE_TLS -DTLS_HOOKS -DSTATISTICS -DMALLOC_STATS -DFAST_LOCK -DADAPTIVE_WAIT -DADAPTIVE_WAIT_LOOPS=1024 -DCC_GCC_LIKE_ASM -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD -DHAVE_MSG_NOSIGNAL -DHAVE_MSGHDR_MSG_CONTROL -DHAVE_ALLOCA_H -DHAVE_TIMEGM -DHAVE_SCHED_SETSCHEDULER -DHAVE_EPOLL -DHAVE_SIGIO_RT -DSIGINFO64_WORKARROUND -DUSE_FUTEX -DHAVE_SELECT -DOPENSER_MOD_INTERFACE -I/usr/local/include -I/include -DMOD_NAME='"memcached"' -c mcd_var.c -o mcd_var.o -MMD -MP In file included from mcd_var.c:29: memcached.h:27:22: warning: memcache.h: No such file or directory What could be the problem. I have installed memcached , memcached-devel , libmemcached and libmemcached-devel Thanks Ricardo.-