libm.so.4 problem when running program

[Michael Pope]

I've just installed port 'fpm' on my FreeBSD5.4 with a current updated 
/usr/ports and fpm will not start.  It gets this error:

/libexec/ld-elf.so.1: Shared object "libm.so.4" not found, required by 
"libgnomeui.so.5"


I've searched around but all people say is that libm.so.4 is part of 
FreeBSD6.0 not 5.4 does this mean I cannot update my ports to the latest 
ports out there?
If so what do I have to set my cvsup tag to?
If not how do I fix the libm.so.4 problem?


-- 
Michael