pass_fd.c: added #include <sys/uio.h> tcp_main.c: moved #include <sys/select.h> underneath #include <sys/types.h.> Still getting this: $ gmake Makefile.defs:331: 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='"0.8.11pre6-tcp5-tm"' -DARCH='"i386"' -DOS='"freebsd"' -DCOMPILER='"gcc 2.95"' -D__CPU_i386 -DCFG_DIR='"/usr/local/etc/ser/"' -DPKG_MALLOC -DSHM_MEM -DSHM_MMAP -DADAPTIVE_WAIT -DADAPTIVE_WAIT_LOOPS=1024 -DDNS_IP_HACK -DUSE_IPV6 -DVOICE_MAIL -D_TOTAG -DUSE_TCP -DFAST_LOCK -DHAVE_SOCKADDR_SA_LEN -DHAVE_GETHOSTBYNAME2 -DHAVE_UNION_SEMUN -DHAVE_SCHED_YIELD -c tcp_main.c -o tcp_main.o tcp_main.c: In function `tcp_send': tcp_main.c:351: `MSG_NOSIGNAL' undeclared (first use in this function) tcp_main.c:351: (Each undeclared identifier is reported only once tcp_main.c:351: for each function it appears in.) gmake: *** [tcp_main.o] Error 1 Cannot find proper #define for MSG_NOSIGNAL The flags, according to "send()" man page is: The flags parameter may include one or more of the following: #define MSG_OOB 0x1 /* process out-of-band data */ #define MSG_PEEK 0x2 /* peek at incoming message */ #define MSG_DONTROUTE 0x4 /* bypass routing, use direct interface */ #define MSG_EOR 0x8 /* data completes record */ #define MSG_EOF 0x100 /* data completes transaction */ The flag MSG_OOB is used to send ``out-of-band'' data on sockets that support this notion (e.g. SOCK_STREAM); the underlying protocol must also support ``out-of-band'' data. MSG_EOR is used to indicate a record mark for protocols which support the concept. MSG_EOF requests that the sender side of a socket be shut down, and that an appropriate indication be sent at the end of the specified data; this flag is only implemented for SOCK_STREAM sockets in the PF_INET protocol family, and is used to implement Transaction TCP (see ttcp(4)). MSG_DONTROUTE is usually used only by diagnostic or routing programs. --- Lenny Tropiano E-mail: lenny(a)voiping.com Partner, Networking Specialist Pager: pager-lenny(a)voiping.com VoIPing, LLC URL: http://www.voiping.com/ PO Box 867, Cedar Park, TX 78630-0867 Mobile: 512-698-VOIP [8647]