Gzip_static and file-extension '.gzip'

hi,

is there any chance to extend gzip_static to act on more than the
current file extension ‘.gz’ for pre-compressed files?

In my case TYPO3 does generate ‘.css.gzip’ or ‘.js.gzip’ or even
‘.gzip.js’ in some places files which are plain gzip files too. Now I
can imagine that this could result in a speed-bump to be able to
deliver them directly without having to either let them be compressed
by nginx or patch TYPO3 Core and a lot of Extensions to make them
write ‘.css.gz’ (and so on).

Regards,
Christian