[syslog-ng] spoof_source not working

I am running syslog-ng 1.6.8 on Solaris 9. I recompiled with the --enable-spoof-source configure option. Here is my config: destination d_squelch_acl { udp("10.159.234.52 <http://10.159.234.52>" port(514) spoof_source(yes)); }; filter f_squelch_acl { match("list squelch denied"); }; log { source(net); filter(f_squelch_acl); destination(d_squelch_acl);}; source net { udp(); }; If I start syslog-ng without spoof_source(yes) option, all messages matching are forwarded to the machine in the destination. If I change to spoof_source(yes) nothing gets forwarded at all. I do not get any errors when I start syslog-ng, like "spoof-source support not compiled in" which I get on other boxes I have not recompiled on yet. Any ideas? Chance