Quote Originally Posted by matt4x4
. . . screw the male fitting in as much as you can . . .
I think it's a good idea IF you don't end up making the crack worse.

. . . spread PVC glue all over the broken area . . .
This is a great idea if it's PVC. I've experimented with these plumbing glues over the years, and found that as fantastic as they are for their intended use, that's how bad they are for gluing plastics that they aren't intended for. If you know the type of plastic, use a glue intended for it. If you don't know the type of plastic, some JB Weld, or some epoxy intended for plastic might be better choices (Wal-mart sells both.)

I'm not familiar with the "AquaMend putty-type glue" mentioned by Chris, but it sounds like it's good stuff especially if you aren't able to completely dry the area.

In any case, screw in the male fitting before the glue cures so that the female threads don't get clogged with glue. Also use a little extra Teflon tape so that the male fitting doesn't get permanently glued in place!