Log Message:
Kill the platform "detection" logic and just wire the host cpu as
detected by autoconf for use in the fontconfig cache file names.

Pass down CC_FOR_BUILD when doing cross-compilation.

A script for how to do the original fc-arch dance in a cross-compile
safe way was sent to the authors as well as a question why this was
done. No reply received so far.

Bump revision. Note that you might want to clean /var/cache/fontconfig
after installing this.

Supported-by: Google SoC 2007.