bug#4982: rgrep can't deal with .gz files

[jidanni]

>>>>> "JL" == Juri Linkov <juri@jurta.org> writes:
>> rgrep should be enhanced so if it encounters .gz files
>> it knows what to do.

JL> This would be tricky to implement.  When searching in .gz files
JL> we have to rely on zgrep

Ah, of course... OK, now in .emacs I'll just use
(setq grep-program "zgrep")
as a workaround, as zgrep also works fine on non compressed files.

JL>(that has its own problems - it doesn't highlight grep matches).

Seems to work for me.

JL> I suggest creating a new command (say, `zrgrep') as a wrapper for `zgrep'
JL> and with UI like `rgrep'.