How to create rpm packages in non-standard location?

All,

How can I create rpm packages in a specified directory other than the
standard one, meaning /usr/src/redhat?

Thanks

Barry

Follow-Ups:
- Re: How to create rpm packages in non-standard location?
  - From: Nicolas Mailhot <Nicolas.Mailhot@laposte.net>
- Re: How to create rpm packages in non-standard location?
  - From: David Lupo <david.lupo@atdworld.net>

References:
- Exclude a file from find_requires
  - From: Mihai Maties <mihai@xcyb.org>
- Re: Exclude a file from find_requires
  - From: Panu Matilainen <pmatilai@welho.com>