I guess then this distills down to a "bug report": The following headers are in the SUS but not provided in the LSB. Their need is exposed by using the LSB headers, and in particular by netdb.h (note that on systems I've examined, using the system netdb.h WILL result in non-LSB symbols, so in this situation, LSB headers must be used).
netinet/in.h netinet/tcp.h syslog.h sys/un.h I don't find netinet/tcp.h in the SUS myself but Andrew is the expert in that area. Mats Wichmann
