GNU logs - #5706, boring messages

Message sent to owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:

Subject: bug#5706: 23.1; Comments incorrectly detected in autoconf mode
Resent-From: rrt@HIDDEN
Original-Sender: debbugs-submit-bounces <at> debbugs.gnu.org
Resent-To: owner <at> debbugs.gnu.org
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Thu, 11 Mar 2010 15:35:02 +0000
Resent-Message-ID: <handler.5706.B.12683216853390 <at> debbugs.gnu.org>
Resent-Sender: bug-gnu-emacs@HIDDEN
To: 5706 <at> debbugs.gnu.org
Date: Thu, 11 Mar 2010 15:34:20 -0000
From: rrt@HIDDEN
Message-Id: <1268321660.243500.25019@canta>
Precedence: list
Sender: debbugs-submit-bounces <at> debbugs.gnu.org
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org

A hash character does not always introduce a comment in autoconf code,
but autoconf-mode always colors if as if it did. Unfortunately, I
cannot really tell from the autoconf manual what the rules are. I
suspect that # does not start a comment if it is inside [...] quotes,
but I guess this should be checked.


In GNU Emacs 23.1.1 (i486-pc-linux-gnu, GTK+ Version 2.18.3)
 of 2009-11-10 on vernadsky, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10604000
configured using `configure  '--build=i486-linux-gnu' '--host=i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' '--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Autoconf

Minor modes in effect:
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  show-paren-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  iswitchb-mode: t
  icomplete-mode: t
  global-auto-revert-mode: t
  desktop-save-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-s p c r e _ m a k e C-a C-p C-p C-p C-p C-p C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-x b <return> <backspace> 
C-x C-s <right> <right> <right> <right> <right> <down> 
<down> <down> <down> <left> <up> <up> <up> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <right> 
<right> <return> SPC SPC <down> <down> <down> <right> 
<right> <right> <down> <right> <left> ] <right> <backspace> 
C-/ <left> <backspace> ) ] <right> C-x C-s <up> <up> 
<up> <up> <up> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <down> <left> <left> <left> 
<left> <left> <left> <right> <right> <right> <left> 
<right> <right> <right> <right> <left> <right> <down> 
<down> <down> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <down> <left> <left> <left> <right> 
<left> <right> <left> <up> <up> <up> <up> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <down> <down> <down> <left> <left> 
<left> <left> <left> <left> <left> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <down> <left> 
<right> <right> <down> <left> <left> <left> <left> 
<left> <left> <right> <right> <right> <right> <right> 
<right> <left> <left> <left> <left> <left> <backspace> 
<backspace> C-x C-s M-x r e p o r t b <backspace> = 
<backspace> - - <backspace> e m a c s - b u g <ret
urn>

Recent messages:
Mark saved where search started [2 times]
Saving file /home/rrt/repo/grep-dlopen-pcre/configure.ac...
Wrote /home/rrt/repo/grep-dlopen-pcre/configure.ac
Auto-saving...done
Undo!
Saving file /home/rrt/repo/grep-dlopen-pcre/configure.ac...
Wrote /home/rrt/repo/grep-dlopen-pcre/configure.ac
Saving file /home/rrt/repo/grep-dlopen-pcre/configure.ac...
Wrote /home/rrt/repo/grep-dlopen-pcre/configure.ac
Reverting buffer `configure'.

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.427 (Entity 5.427)
Content-Type: text/plain; charset=utf-8
X-Loop: bug-gnu-emacs@HIDDEN
From: bug-gnu-emacs@HIDDEN (GNU bug Tracking System)
To: rrt@HIDDEN
Subject: bug#5706: Acknowledgement (23.1; Comments incorrectly detected in
 autoconf mode)
Message-ID: <handler.5706.B.12683216853390.ack <at> debbugs.gnu.org>
References: <1268321660.243500.25019@canta>
X-Gnu-PR-Message: ack 5706
X-Gnu-PR-Package: emacs
Reply-To: 5706 <at> debbugs.gnu.org
Date: Thu, 11 Mar 2010 15:35:02 +0000

Thank you for filing a new bug report with GNU.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

Your message has been sent to the package maintainer(s):
 bug-gnu-emacs@HIDDEN

If you wish to submit further information on this problem, please
send it to 5706 <at> debbugs.gnu.org.

Please do not send mail to bug-gnu-emacs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
5706: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D5706
GNU Bug Tracking System
Contact bug-gnu-emacs@HIDDEN with problems

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#5706: 23.1; Comments incorrectly detected in autoconf mode
Resent-From: Stefan Kangas <stefan@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Thu, 19 Nov 2020 03:13:02 +0000
Resent-Message-ID: <handler.5706.B5706.160575557923365 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: rrt@HIDDEN
Cc: 5706 <at> debbugs.gnu.org
From: Stefan Kangas <stefan@HIDDEN>
In-Reply-To: <1268321660.243500.25019@canta> (rrt@HIDDEN's message of "Thu, 
 11 Mar 2010 15:34:20 -0000")
References: <1268321660.243500.25019@canta>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)
MIME-Version: 1.0
Date: Wed, 18 Nov 2020 19:12:51 -0800
Message-ID: <CADwFkm=wwFAcPxMjBUc0YDpeYbZ8NUAZP_UNa9ucKoBekbfB2A@HIDDEN>
Content-Type: text/plain; charset="UTF-8"
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

rrt@HIDDEN writes:

> A hash character does not always introduce a comment in autoconf code,
> but autoconf-mode always colors if as if it did. Unfortunately, I
> cannot really tell from the autoconf manual what the rules are. I
> suspect that # does not start a comment if it is inside [...] quotes,
> but I guess this should be checked.

(This bug was reported 10 years ago, but unfortunately never got a reply
at the time.)

Could you give an example of some autoconf code where you believe the
hash character is incorrectly identified as a comment?

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#5706: 23.1; Comments incorrectly detected in autoconf mode
Resent-From: Reuben Thomas <rrt@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Thu, 19 Nov 2020 07:38:02 +0000
Resent-Message-ID: <handler.5706.B5706.160577145610115 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: Stefan Kangas <stefan@HIDDEN>
Cc: 5706 <at> debbugs.gnu.org
MIME-Version: 1.0
References: <1268321660.243500.25019@canta>
 <CADwFkm=wwFAcPxMjBUc0YDpeYbZ8NUAZP_UNa9ucKoBekbfB2A@HIDDEN>
In-Reply-To: <CADwFkm=wwFAcPxMjBUc0YDpeYbZ8NUAZP_UNa9ucKoBekbfB2A@HIDDEN>
From: Reuben Thomas <rrt@HIDDEN>
Date: Thu, 19 Nov 2020 07:37:14 +0000
Message-ID: <CAOnWdohXVQe4PGj3zdR5MSv7jeDcQj1iomdUf81NzgzJpSyFSw@HIDDEN>
Content-Type: multipart/alternative; boundary="0000000000009cbf1305b470cc22"
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

--0000000000009cbf1305b470cc22
Content-Type: text/plain; charset="UTF-8"

On Thu, 19 Nov 2020 at 03:12, Stefan Kangas <stefan@HIDDEN> wrote:

> rrt@HIDDEN writes:
>
> > A hash character does not always introduce a comment in autoconf code,
> > but autoconf-mode always colors if as if it did. Unfortunately, I
> > cannot really tell from the autoconf manual what the rules are. I
> > suspect that # does not start a comment if it is inside [...] quotes,
> > but I guess this should be checked.
>
> (This bug was reported 10 years ago, but unfortunately never got a reply
> at the time.)
>
> Could you give an example of some autoconf code where you believe the
> hash character is incorrectly identified as a comment?
>

A quick bit of grepping finds the in XEmacs's configure.ac. Note in
particular the contents of the first argument to AC_LANG_PROGRAM:

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <features.h>],[
#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
#error Not a GNU libc system :-(
******* ======= ******** &&&&&&&&
#endif
])], have_glibc=yes, have_glibc=no)

-- 
https://rrt.sc3d.org

--0000000000009cbf1305b470cc22
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Thu, 19 Nov 2020 at 03:12, Stefan Kangas &lt;<a href=3D"mailto:st=
efan@HIDDEN">stefan@HIDDEN</a>&gt; wrote:<br></div><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid r=
gb(204,204,204);padding-left:1ex"><a href=3D"mailto:rrt@HIDDEN" target=3D=
"_blank">rrt@HIDDEN</a> writes:<br>
<br>
&gt; A hash character does not always introduce a comment in autoconf code,=
<br>
&gt; but autoconf-mode always colors if as if it did. Unfortunately, I<br>
&gt; cannot really tell from the autoconf manual what the rules are. I<br>
&gt; suspect that # does not start a comment if it is inside [...] quotes,<=
br>
&gt; but I guess this should be checked.<br>
<br>
(This bug was reported 10 years ago, but unfortunately never got a reply<br=
>
at the time.)<br>
<br>
Could you give an example of some autoconf code where you believe the<br>
hash character is incorrectly identified as a comment?<br>
</blockquote></div><div><br></div><div><div style=3D"font-family:arial,helv=
etica,sans-serif;font-size:small" class=3D"gmail_default">A quick bit of gr=
epping finds the in XEmacs&#39;s <a href=3D"http://configure.ac">configure.=
ac</a>. Note in particular the contents of the first argument to AC_LANG_PR=
OGRAM:<br></div></div><div><br></div><div>AC_COMPILE_IFELSE([AC_LANG_PROGRA=
M([#include &lt;features.h&gt;],[<br>#if ! (defined __GLIBC__ || defined __=
GNU_LIBRARY__)<br>#error Not a GNU libc system :-(<br>******* =3D=3D=3D=3D=
=3D=3D=3D ******** &amp;&amp;&amp;&amp;&amp;&amp;&amp;&amp;<br>#endif<br>])=
], have_glibc=3Dyes, have_glibc=3Dno)<br></div><div><br></div>-- <br><div d=
ir=3D"ltr" class=3D"gmail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"=
><a href=3D"https://rrt.sc3d.org" target=3D"_blank">https://rrt.sc3d.org</a=
></div></div></div></div></div>

--0000000000009cbf1305b470cc22--

Message sent to bug-gnu-emacs@HIDDEN:

X-Loop: help-debbugs@HIDDEN
Subject: bug#5706: 23.1; Comments incorrectly detected in autoconf mode
Resent-From: Stefan Kangas <stefan@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Thu, 19 Nov 2020 14:52:02 +0000
Resent-Message-ID: <handler.5706.B5706.160579748111681 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
X-GNU-PR-Message: followup 5706
X-GNU-PR-Package: emacs
X-GNU-PR-Keywords: 
To: Reuben Thomas <rrt@HIDDEN>
Cc: 5706 <at> debbugs.gnu.org
Received: via spool by 5706-submit <at> debbugs.gnu.org id=B5706.160579748111681
          (code B ref 5706); Thu, 19 Nov 2020 14:52:02 +0000
Received: (at 5706) by debbugs.gnu.org; 19 Nov 2020 14:51:21 +0000
Received: from localhost ([127.0.0.1]:38697 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1kflHN-00032G-3B
	for submit <at> debbugs.gnu.org; Thu, 19 Nov 2020 09:51:21 -0500
Received: from mail-ed1-f43.google.com ([209.85.208.43]:45615)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <stefankangas@HIDDEN>) id 1kflHK-00031j-Nk
 for 5706 <at> debbugs.gnu.org; Thu, 19 Nov 2020 09:51:19 -0500
Received: by mail-ed1-f43.google.com with SMTP id q3so6072786edr.12
 for <5706 <at> debbugs.gnu.org>; Thu, 19 Nov 2020 06:51:18 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:from:in-reply-to:references:mime-version:date
 :message-id:subject:to:cc;
 bh=sJ23n2VOJlqfyM5Ktlf0jrZzldBHdhbrgo6OD3fZAeY=;
 b=Apet+PLiFWLrmnE3Ifsf7XWd0D8sCbZIsHIuurc5d12CZ063PWwAamTUJimmEK8saq
 khS1mgvvfV2X4Ovv2r1aVOh+zDlwheJJAn594RP61i/KQusoAnQ/kpGfw4zbvXiMBCjl
 hQBEzVFHanK6bTVU5r8hNLLe8HnVde7ROwtXrJeqlrm3kQhd4uDZ5CoBYoXHA4RhxBuR
 8/DxbcDLXwEFNCvVnMS+HY39RtwFASAK8/RD7c+N0W+GBt6O5hw0mpzY9m4esGV46da4
 DOAaKCEb9WSxxmMkG/l9q/oShl77q95AhngpI4DPQ0moQIGhkR/xbARS6NKqjSvfOrLr
 1okA==
X-Gm-Message-State: AOAM533Qk6OjGGvo+1PfSAS7aEII+3vbR+x6pzc/Af2ZDWjAv6q8SfRm
 kp7u/ucQXFtxBpnsQidjWS0xvoaxWMDY6bSr68uXfceIZmg=
X-Google-Smtp-Source: ABdhPJzH6qP4rjWx1RtCF7uDK4vd7MVaDxkxAUhfSa8RmomKMUw9JYWs9WjpFGboHaDdsg3x9HUkKr8ZbMauvndRlYc=
X-Received: by 2002:a50:e443:: with SMTP id e3mr31987204edm.160.1605797473044; 
 Thu, 19 Nov 2020 06:51:13 -0800 (PST)
Received: from 753933720722 named unknown by gmailapi.google.com with
 HTTPREST; Thu, 19 Nov 2020 06:51:12 -0800
From: Stefan Kangas <stefan@HIDDEN>
In-Reply-To: <CAOnWdohXVQe4PGj3zdR5MSv7jeDcQj1iomdUf81NzgzJpSyFSw@HIDDEN>
References: <1268321660.243500.25019@canta>
 <CADwFkm=wwFAcPxMjBUc0YDpeYbZ8NUAZP_UNa9ucKoBekbfB2A@HIDDEN>
 <CAOnWdohXVQe4PGj3zdR5MSv7jeDcQj1iomdUf81NzgzJpSyFSw@HIDDEN>
MIME-Version: 1.0
Date: Thu, 19 Nov 2020 06:51:12 -0800
Message-ID: <CADwFkmnQDby3FYV-L7Do4HiaSACg83o9oTTNJgtjZhvR9_AgiQ@HIDDEN>
Content-Type: text/plain; charset="UTF-8"
X-Spam-Score: 0.5 (/)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -0.5 (/)

tags 5706 + confirmed
thanks

Reuben Thomas <rrt@HIDDEN> writes:

> On Thu, 19 Nov 2020 at 03:12, Stefan Kangas <stefan@HIDDEN> wrote:
>
>> rrt@HIDDEN writes:
>>
>> > A hash character does not always introduce a comment in autoconf code,
>> > but autoconf-mode always colors if as if it did. Unfortunately, I
>> > cannot really tell from the autoconf manual what the rules are. I
>> > suspect that # does not start a comment if it is inside [...] quotes,
>> > but I guess this should be checked.
>>
>> (This bug was reported 10 years ago, but unfortunately never got a reply
>> at the time.)
>>
>> Could you give an example of some autoconf code where you believe the
>> hash character is incorrectly identified as a comment?
>>
>
> A quick bit of grepping finds the in XEmacs's configure.ac. Note in
> particular the contents of the first argument to AC_LANG_PROGRAM:
>
> AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <features.h>],[
> #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
> #error Not a GNU libc system :-(
> ******* ======= ******** &&&&&&&&
> #endif
> ])], have_glibc=yes, have_glibc=no)

Thanks.  I see the same on current master using the configure.ac from
Emacs.

It incorrectly uses `font-lock-comment-face' for the entire line after
"langinfo.h" below:

AC_CACHE_CHECK([for nl_langinfo and CODESET], [emacs_cv_langinfo_codeset],
  [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],

Message received at control <at> debbugs.gnu.org:

Received: (at control) by debbugs.gnu.org; 19 Nov 2020 14:51:21 +0000
From debbugs-submit-bounces <at> debbugs.gnu.org Thu Nov 19 09:51:21 2020
Received: from localhost ([127.0.0.1]:38695 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1kflHM-00032E-Q6
	for submit <at> debbugs.gnu.org; Thu, 19 Nov 2020 09:51:21 -0500
Received: from mail-ed1-f46.google.com ([209.85.208.46]:44166)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <stefankangas@HIDDEN>) id 1kflHK-00031k-QM
 for control <at> debbugs.gnu.org; Thu, 19 Nov 2020 09:51:19 -0500
Received: by mail-ed1-f46.google.com with SMTP id l5so6080371edq.11
 for <control <at> debbugs.gnu.org>; Thu, 19 Nov 2020 06:51:18 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:from:in-reply-to:references:mime-version:date
 :message-id:subject:to:cc;
 bh=sJ23n2VOJlqfyM5Ktlf0jrZzldBHdhbrgo6OD3fZAeY=;
 b=JqrwDd44tBKbRkBElKsGsBdqf8Llupx6JJ/wU11AQqLBrC1SDy0D4NAwDkjMnYqiFq
 NYT8qMIJJEnEvsnsPxfVmSQQVmW1Wj7Az1hztmr4f3eoPMXrKw8DUQo1fTIjw12F8SQL
 ZntFx3xfngU8NxYGn/x/RoOPBiPUK7qW/uHjsmVc9OlfNMYZbnE0xNG/99DzqkWBOV0R
 rvtr2AR4vR+g/0V1efa41KLOL4lELQvEYR+oqaeEUaPcfGQgfeKhulpH4SLPbbZiJbsK
 QU2/oNMXbKaHBdYzmiVsL/AuxGUmDzcmqzEaS2ke0/x+w/jnI+Eny6LtDOYsCcBgB8gW
 e4Pw==
X-Gm-Message-State: AOAM532dOM/+5RqbsZg8KGBcx6cyOLAkC2q024qCOZDHJV/1GmpCjQD0
 37CQlkaEgquZBqveQMZ6kynxctgD5Iq6S3nckhw=
X-Google-Smtp-Source: ABdhPJzH6qP4rjWx1RtCF7uDK4vd7MVaDxkxAUhfSa8RmomKMUw9JYWs9WjpFGboHaDdsg3x9HUkKr8ZbMauvndRlYc=
X-Received: by 2002:a50:e443:: with SMTP id e3mr31987204edm.160.1605797473044; 
 Thu, 19 Nov 2020 06:51:13 -0800 (PST)
Received: from 753933720722 named unknown by gmailapi.google.com with
 HTTPREST; Thu, 19 Nov 2020 06:51:12 -0800
From: Stefan Kangas <stefan@HIDDEN>
In-Reply-To: <CAOnWdohXVQe4PGj3zdR5MSv7jeDcQj1iomdUf81NzgzJpSyFSw@HIDDEN>
References: <1268321660.243500.25019@canta>
 <CADwFkm=wwFAcPxMjBUc0YDpeYbZ8NUAZP_UNa9ucKoBekbfB2A@HIDDEN>
 <CAOnWdohXVQe4PGj3zdR5MSv7jeDcQj1iomdUf81NzgzJpSyFSw@HIDDEN>
MIME-Version: 1.0
Date: Thu, 19 Nov 2020 06:51:12 -0800
Message-ID: <CADwFkmnQDby3FYV-L7Do4HiaSACg83o9oTTNJgtjZhvR9_AgiQ@HIDDEN>
Subject: Re: bug#5706: 23.1; Comments incorrectly detected in autoconf mode
To: Reuben Thomas <rrt@HIDDEN>
Content-Type: text/plain; charset="UTF-8"
Bcc: control <at> debbugs.gnu.org
X-Spam-Score: 0.5 (/)
X-Debbugs-Envelope-To: control
Cc: 5706 <at> debbugs.gnu.org
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -0.5 (/)

tags 5706 + confirmed
thanks

Reuben Thomas <rrt@HIDDEN> writes:

> On Thu, 19 Nov 2020 at 03:12, Stefan Kangas <stefan@HIDDEN> wrote:
>
>> rrt@HIDDEN writes:
>>
>> > A hash character does not always introduce a comment in autoconf code,
>> > but autoconf-mode always colors if as if it did. Unfortunately, I
>> > cannot really tell from the autoconf manual what the rules are. I
>> > suspect that # does not start a comment if it is inside [...] quotes,
>> > but I guess this should be checked.
>>
>> (This bug was reported 10 years ago, but unfortunately never got a reply
>> at the time.)
>>
>> Could you give an example of some autoconf code where you believe the
>> hash character is incorrectly identified as a comment?
>>
>
> A quick bit of grepping finds the in XEmacs's configure.ac. Note in
> particular the contents of the first argument to AC_LANG_PROGRAM:
>
> AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <features.h>],[
> #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
> #error Not a GNU libc system :-(
> ******* ======= ******** &&&&&&&&
> #endif
> ])], have_glibc=yes, have_glibc=no)

Thanks.  I see the same on current master using the configure.ac from
Emacs.

It incorrectly uses `font-lock-comment-face' for the entire line after
"langinfo.h" below:

AC_CACHE_CHECK([for nl_langinfo and CODESET], [emacs_cv_langinfo_codeset],
  [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],

Last modified: Thu, 19 Nov 2020 15:00:02 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.