It looks like the webpages are working now.

The script you probably are talking about is the build.sh script which
comes with the source (so you don't need to get separately).

Also, look at the BUILDING file for instructions and maybe UPDATING for
any other ideas.

In your case, you will have many, many changes. Make sure you have
complete backups and a method for an easy recovery.

Also, be sure to look at the etcupdate(8) manpage. And you may want to
review the etc/postinstall script.

 Jeremy C. Reed

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