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From: Jeff King <>
To: Jeffrey Walton <>
Cc: Git List <>,
	Ævar Arnfjörð Bjarmason <>
Subject: Re: undefined reference to `pcre_jit_exec'
Date: Thu, 12 Oct 2017 16:38:32 -0400
Message-ID: <> (raw)
In-Reply-To: <>

On Thu, Oct 12, 2017 at 04:34:38PM -0400, Jeffrey Walton wrote:

> > It looks like autoconf turns on USE_LIBPCRE1, but isn't smart enough to
> > test NO_LIBPCRE1_JIT.
> If Git wants Jit, then I am inclined to configure PCRE to provide it.

It does make things faster. OTOH, we lived for many years without it, so
certainly it's not the end of the world to build without it.

There are some numbers in the commit message of fbaceaac47 (grep: add
support for the PCRE v1 JIT API, 2017-05-25).

> A quick question if you happen to know... Does PCRE Jit cause a loss
> of NX-stacks? If it causes a loss of NX-stacks, then I think I prefer
> to disable it.

I don't know. Ævar (cc'd) might.


  reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-12 20:06 Jeffrey Walton
2017-10-12 20:10 ` Jeff King
2017-10-12 20:34   ` Jeffrey Walton
2017-10-12 20:38     ` Jeff King [this message]
2017-10-12 21:00       ` Jeffrey Walton
2017-10-12 21:05       ` Ævar Arnfjörð Bjarmason

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