Is anyone else running the 'vacation' mail forwarder on Centos 3?

When I 'make install' I get the following error:

strip: /usr/bin/vaclook: File format not recognized

When I try and use vacation (with postfix), it 'goes through the motions' but inbound mail bounces with

nkendrick@munged.home.local: Command died with status 1: "/usr/bin/vacation -a nkendrick@munged.com nkendrick"

I have sent a mail to the postfix list too but I thought I'd see if anyone here has any ideas too.

Thanks

Nigel