Flushing/disabling the gettext cache?

Hi,

I'm working on the l10n side of a new site and, after googling around,
I'm still left with a couple of questions.

We're using:
- PHP 4.3.9
- Apache 2.0.52
- Redhat linux

1) How can we refresh the gettext cache?  The only way we've
consistently been able to refresh the cache is by restarting the
apache daemon (graceful restarting seems to be hit or miss, actual
restarting seems to work every time).  What's the proper way to
refresh the cache?

2) Is there a way to disable gettext caching?  When we're developing,
I'd prefer it if any change in the .mo was active on the site
immediately, even if it meant a performance hit.

I'm not sure if my questions are more apache or php related, but I've
gotten answers here in the past, so I figured I'd start here.  Please
tell me if you know of a better place to ask.

Thanks for any input.

Wil Clouser