Errors with socketmapd.0.31.pl

Newly compiled Sendmail 8.13.5, linked to libsrs2 in site.config.m4 with 
this line: APPENDDEF(`conf_sendmail_LIBS', `-lsrs2'). Compiler (gcc 3.3.6) 
reports success with this lib.

The socketmap.m4 is in cf/hack and HACK(socketmap)dnl follows MAILER() in 
cf/cf/sendmail.mc.

Daemon socketmapd.0.31.pl is running.

Trying to start sendmail gives this:

554 5.0.0 /etc/mail/sendmail.cf: line 183: readcf: map reverse_srs: class 
socket not available
554 5.0.0 /etc/mail/sendmail.cf: line 184: readcf: map make_srs: class 
socket not available

and sendmail refuses to start, of course. Any clues how to fix this?

Second question: socketmapd.0.31.pl has this line:
my $fwdomain = 'mydomain.com';

These servers handle multiple virtual hosts. How do you allow for multiple 
hosts in this file?

Robert Muchnick
Xenterra.net
720-276-7917