"Operation not permitted" at end of portupgrade

[Mike Clarke]

At the end of a portupgrade run for firefox I get the following

===>   Registering installation for firefox-2.0.0.14,1
===>  Cleaning for firefox-2.0.0.14,1
--->  Cleaning out obsolete shared libraries
[Updating the pkgdb <format:bdb_btree> in /var/db/pkg ... - 626 packages 
found (-0 +1) . done]
Operation not permitted - /usr/local/lib/compat/pkg/libc.so.5
Operation not permitted - /usr/local/lib/compat/pkg/libc_r.so.5
Operation not permitted - /usr/local/lib/compat/pkg/libcrypt.so.2
Operation not permitted - /usr/local/lib/compat/pkg/libpthread.so.1
Operation not permitted - /usr/local/lib/compat/pkg/libthr.so.1

The permissions on all these files are -r--r--r--. Should I change them 
to  -rwxr-xr-x like the rest of the files in that directory or just 
ignore it?

FreeBSD kestrel.lan 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 
19:59:52 UTC 2008     
root at logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

-- 
Mike Clarke