Hi Pádraig, I recently made the grep-3.10 release using the very latest autoconf (built from master). I'm preparing to make an autoconf snapshot, and hopefully soon after, a "stable" 2.73 release. So far, no one has reported any issue with grep-3.10, but it has significantly less autoconf coverage than coreutils.
What do you think about using either autoconf's master or the imminent snapshot when preparing coreutils-9.3? Thanks, Jim