I think this is strictly a csound build error -- I probably didn't set something correctly (which I set nothing), but I can't find out what it is. Before I go delving into this, I'm sure someone can tell me what I didn't set right.. To compile is just: # scons The error: === OOps/remote.c: In function 'getIpAddress': OOps/remote.c:70: error: storage size of 'ifr' isn't known scons: *** [OOps/remote.o] Error 1 scons: building terminated because of errors. === I'm compiling on Linux 64_x86. The error, I suppose, shows up in the strcpy below (from remote.c): #ifdef HAVE_SOCKETS /* get the IPaddress of this machine */ static int getIpAddress(char *ipaddr, char *ifname) { int ret = 1; #ifdef WIN32 /* VL 12/10/06: something needs to go here */ /* gethostbyname is the real answer; code below id unsafe */ char hostname[1024]; struct hostent *he; struct sockaddr_in sin; gethostname(hostname, sizeof(hostname)); he = gethostbyname(hostname); memset(&sin, 0, sizeof (struct sockaddr_in)); memmove(&sin.sin_addr, he->h_addr_list[0], he->h_length); strcpy(ipaddr, inet_ntoa (sin.sin_addr)); ret = 0; #else struct ifreq ifr; int fd; fd = socket(AF_INET,SOCK_DGRAM, 0); if (fd >= 0) { strcpy(ifr.ifr_name, ifname); if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { char *local; local = inet_ntoa(((struct sockaddr_in *)(&ifr.ifr_addr))->sin_addr); strcpy(ipaddr, local); ret = 0; } } close(fd); #endif return ret; Brad Fuller wrote: