Subject: bug#17471: On Solaris 10, grep snapshot apparently hit by bleeding-edge Autoconf bug

From: Jim Meyering <[email-masked]>
Date: Mon, 12 May 2014 18:34:07 -0700

Thanks for dealing with that.
The only potential problem I see with your patch would be when
one runs configure with a perverse program name transformation,
e.g., --program-transform-name='s/^/$/', introducing a shell
metacharacter (or leading/trailing white space!) in the resulting
name.  In that case, the lack of single quotes around @grep@
would be fatal.

Fixing that is not high priority. Anyone who does that to
grep deserves the result :-)