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Re: configure.in: Look for flex
From: |
Ludovic Courtès |
Subject: |
Re: configure.in: Look for flex |
Date: |
Thu, 16 Jun 2005 09:56:01 +0200 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
Hi,
Kevin Ryde <address@hidden> writes:
> No, this shouldn't be an error. The dist includes the generated C
> code so you don't need lex in a normal build.
>
> (You need lex if you change the ".l", and in a maintainer build maybe,
> so a configure check is good, but it shouldn't be an error.)
Since flex is needed when building from CVS and not needed when building
from a distribution, what about something like the following:
if test "x$USE_MAINTAINER_MODE" = "xyes"; then
AC_MSG_ERROR([flex not found. See README.])
else
AC_MSG_WARN([flex not found but only needed when building from CVS.])
fi
Then this means that the error message would only be triggered for
people who passed the `--enable-maintainer-mode' option to `configure'
(which /should/ be the case for people building from CVS, but I'm not
sure this is actually the case since I didn't even use it myself ;-)).
BTW, why is the flex-generated file included in the distribution?
Thanks,
Ludovic.