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regex.m4: how do I know that the included regex is used?
From: |
Sam Steingold |
Subject: |
regex.m4: how do I know that the included regex is used? |
Date: |
Wed, 27 Jul 2011 11:11:06 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
Hi,
When the included regex is used I must prepend -I$(srcdir)/gllib to
CPPFLAGS to ensure that the gnulib regex.h is included in the sources.
(when this is not the case, I _must_ not do that!)
This raises 2 questions:
1. how do I know elsewhere in the configuration process that the
included regex is used? the authoritative variable is
ac_use_included_regex, but it is not cached, so sub-configures cannot
access it.
2. what if there is some other gnulib package xeger with the same modus
operandi? (i.e., if xeger is used, I must prepend -I$(srcdir)/gllib
to CPPFLAGS and if it is not, I must not).
what if regex IS used but xeger is NOT?
I propose that regex.h is replaced with regex.in.h just like
fnmatch.in.h (which has no @@ either). This would solve the problem
without any action from the users of gnulib.
Thanks.
--
Sam Steingold (http://sds.podval.org/) on CentOS release 5.6 (Final) X
11.0.60900031
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Bus error -- please leave by the rear door.
- regex.m4: how do I know that the included regex is used?,
Sam Steingold <=
- Re: regex.m4: how do I know that the included regex is used?, Paolo Bonzini, 2011/07/28
- Re: regex.m4: how do I know that the included regex is used?, Bruno Haible, 2011/07/28
- Re: regex.m4: how do I know that the included regex is used?, Paul Eggert, 2011/07/28
- Re: regex.m4: how do I know that the included regex is used?, Sam Steingold, 2011/07/29
- Re: regex.m4: how do I know that the included regex is used?, Jim Meyering, 2011/07/29