Olwe Bottorff wrote:
> Can someone give me a good real-world scenario/example
> using ar (arcive) to build library archives? 

Clearly the most apropos answer to this is to use
the example of Debian [1] packages (.deb's) which are
created using ar [2].

HTH,

--Tom

[1] http://distrowatch.com/dwres.php?resource=major
    Half of the top 10 distros are Debian (or derivatives):
    Ubuntu, Debian, Knoppix, Mepis, Xandros.

[2] http://www.debian-administration.org/articles/116