depot has long been my friend in the battle of unpackaged software.

ftp://ftp.andrew.cmu.edu/pub/depot/old/depot.020.tar.Z

/usr/local/depot/pkgname.pkgver becomes a package to control by depot. Package versions need to be monotonically increasing and cannot get too large.

ls -dl /usr/local/depot/{custom*,depot.20,filesystem.*,struct.depot}
-r--r--r-- 1 root root 1983 May 13 2010 /usr/local/depot/custom.depot
drwxr-xr-x 5 root root 40 Mar 23 2006 /usr/local/depot/depot.20
drwxr-xr-x 10 root root 95 May 31 2006 /usr/local/depot/filesystem.902980
drwxr-xr-x 11 root root 107 Feb 11 2009 /usr/local/depot/filesystem.90298001
-rw-r--r-- 1 root root 0 May 13 2010 /usr/local/depot/filesystem.90298001.md5sums
-rw-r--r-- 1 root root 20480 Feb 11 2009 /usr/local/depot/filesystem.90298001.tar
-rw-r--r-- 1 root root 0 May 13 2010 /usr/local/depot/filesystem.902980.md5sums
-rw-r--r-- 1 root root 20480 Mar 13 2007 /usr/local/depot/filesystem.902980.tar
-rw-r--r-- 1 root root 32681 Aug 7 20:45 /usr/local/depot/struct.depot

/usr/local/bin/depot -> /usr/local/depot/depot.20/bin/depot
/usr/local/bin/du_k.sh -> /usr/local/depot/rcs_rpm_tools.20050/bin/du_k.sh