math/arpack patch.tar.gz timestamp differs between ports and freebsd.org

[RW]

On Thu, 29 Oct 2009 03:29:12 -0500 (CDT)
Scott Bennett <bennett at cs.niu.edu> wrote:

>      The build of math/octave dies when the build for math/arpack
> dies due to a timestamp mismatch between local ports tree information
> and ftp.freebsd.org.  

It's a mismatch between the timestamps on the local cached distfiles and
their counterparts on the file server. Try doing a "make distclean" in
the port directory.