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Re: undefined reference to `pcre_jit_exec'

From
Jeff King <peff@peff.net>
Date
Oct 12, 2017, 20:38 UTC
Message-ID
<20171012203832.ui52j7cdrztc6vhs@sigill.intra.peff.net>
In-Reply-To
<CAH8yC8nHpdA+fX3pcaLRzEYwTCmoxF3NKSh6SUkORZuEvg0JGA@mail.gmail.com>
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.
-Peff
Previous: Jeffrey WaltonNext: Jeffrey Walton
Message 4 of 6 in “undefined reference to `pcre_jit_exec'”
  1. Jeffrey WaltonOct 12, 2017
  2. Jeff KingOct 12, 2017
  3. Jeffrey WaltonOct 12, 2017
  4. Jeff KingOct 12, 2017
  5. Jeffrey WaltonOct 12, 2017
  6. Ævar Arnfjörð BjarmasonOct 12, 2017

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