Makefile.in configure configure.in include/config.h.in: Changes for DGUX and UNIXWARE.

Makefile.in configure configure.in include/config.h.in: Changes for DGUX and UNIXWARE.
groupdb/aliasdb.c groupdb/aliasfile.c groupdb/groupfile.c: Don't use snprinf, use slprintf.
include/includes.h: Fix YP problem.
include/smb.h: Fix ZERO_STRUCTP.
lib/util_sock.c: Added strerror() in debugs.
passdb/ldap.c: Don't use snprinf, use slprintf.
rpc_client/cli_lsarpc.c rpc_client/cli_pipe.c rpc_parse/parse_sec.c rpc_server/srv_pipe.c: Don't use snprinf, use slprintf.
script/installman.sh: DGUX changes.
smbd/open.c smbd/oplock.c: Fixed gcc warnings.
web/swat.c: Changes USER to SWAT_USER.