Hello: I just checked out what I believe is the latest stable version of SER to be installed on a FreeBSD 4.10-RELEASE system. When issuing the gmake install or gmake ser command the build aborts with the following error. Is this a known issue? # gmake ser Makefile.defs:421: Old gcc detected (2.9x), use gcc >= 3.1 for better results gcc -g -O9 -funroll-loops -Wcast-align -Wall -m486 -malign-loops=4 -DNAME='"ser"' -DVERSION='"0.8.13-dev-36-malloc"' -DARCH='"i386"' -DOS='"freebsd"' -DCOMPILER='"gcc 2.95"' -D__CPU_i386 -D__OS_freebsd -DCFG_DIR='"/usr/local/etc/ser/"' -DPKG_MALLOC -DSHM_MEM -DSHM_MMAP -DDNS_IP_HACK -DUSE_IPV6 -DUSE_MCAST -DUSE_TCP -DDISABLE_NAGLE -DF_MALLOC -DFAST_LOCK -DADAPTIVE_WAIT -DADAPTIVE_WAIT_LOOPS=1024 -DHAVE_SOCKADDR_SA_LEN -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD -DHAVE_MSGHDR_MSG_CONTROL -c udp_server.c -o udp_server.o udp_server.c: In function `setup_mcast_rcvr': udp_server.c:258: `IPV6_ADD_MEMBERSHIP' undeclared (first use in this function) udp_server.c:258: (Each undeclared identifier is reported only once udp_server.c:258: for each function it appears in.) gmake: *** [udp_server.o] Error 1 -- ISC Network Engineering The University of Pennsylvania 3401 Walnut Street, Suite 221A Philadelphia, PA 19104 voice: 215-573-8396 215-746-7903 fax: 215-898-9348 sip:blairs@upenn.edu