GNU bug report logs - #6778
24.0.50; compile-mode fails on gcc-4.5 error messages

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 6778 in the body.
You can then email your comments to 6778 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Miles Bader <miles <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; compile-mode fails on gcc-4.5 error messages
Date: Mon, 02 Aug 2010 23:14:59 +0900

Emacs compile.el fails to parse correctly gcc 4.5 error messages that
include a column as well as a line number.

To reproduce, assuming gcc 4.5 is installed as "gcc-4.5":

(1) Put the following text into a file "x.c":

      int y = 1;
      int z = q1;
      int p = 1;

(2) Now compile by doing "M-x compile", and for a compilation command,
    use "gcc-4.5 -c x.c".

(3) The compiler will output an error message like:

      -*- mode: compilation; default-directory: "/tmp/" -*-
      Compilation started at Mon Aug  2 23:07:40

      gcc-4.5 -c x.c
      x.c:2:12: error: ‘q1’ undeclared here (not in a function)

      Compilation exited abnormally with code 1 at Mon Aug  2 23:07:40

(4) One should be able to jump to the error by giving the command
    `next-error' ("C-x `"); however next-error apparently is confused
    by the error, and instead gives a prompt like:

       Find this error in (default x.c:2): /tmp/


Apparently it fails to recognize the FILE:LINE:COL: format, and thinks
that ":2" is part of the filename.

My recollection is that such error messages used to be properly parsed
by next-error, so maybe some recent change has broken this.

Thanks,

-Miles




In GNU Emacs 24.0.50.20 (x86_64-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2010-07-31 on catnip
Windowing system distributor `The X.Org Foundation', version 11.0.10706901
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: ja_JP.UTF-8
  value of $XMODIFIERS: @im=SCIM
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  rcirc-track-minor-mode: t
  minibuffer-electric-default-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  scroll-bar-mode: right
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-v C-g C-g C-x C-v / t m p / x . c <return> i n t 
SPC x SPC SPC <backspace> = SPC 1 ; C-a C-u 3 SPC C-e 
<return> C-p C-a C-k C-k C-y C-y C-y C-y C-y C-u C-p 
C-n C-e C-b C-b q C-x C-s C-a C-n C-n C-n C-n C-u C-p 
C-M-f C-f C-d y C-n C-b C-d z C-n C-b C-d p C-n C-b 
C-d q C-x C-s C-n C-n C-x C-e x . o <return> y e C-x 
C-e C-g C-/ C-x C-e C-a <escape> d <escape> d g c c 
SPC - c <return> C-x C-e M-p M-n <backspace> c <return> 
C-x C-n C-x C-e C-a M-f - 4 . 5 <return> C-x C-n C-g 
C-x C-g C-x C-e M-b M-b M-b M-b C-d 4 <return> C-x 
C-n C-g C-x s e d e l <return> c o m p i l e - m o 
d e SPC f a i l s SPC t o SPC u n d e r s t a n d SPC 
5 <backspace> g c c - 4 . 5 SPC e r r o 5 r SPC m <backspace> 
<backspace> <backspace> <backspace> r SPC m e s s a 
g e s <return> C-h v c o m i p l e <escape> h c o m 
p i l e SPC SPC C-u e r r o SPC r SPC C-g <escape> 
x c u s t o m z i e C-g C-x b <return> C-a C-p C-p 
C-k C-k C-n C-n C-n C-k C-k C-n C-n C-x C-s <escape> 
x C-g <escape> C-g C-x s C-a C-x k <return> C-x k <return> 
y e s <return> <escape> x r e p o r t - e m SPC <r
eturn>

Recent messages:
xding
byte-code: End of buffer
xding
byte-code: End of buffer
Saving file /tmp/x.c...
Wrote /tmp/x.c
xding
Quit
xding
Ispell process killed

Load-path shadows:
None found.

Features:
(shadow emacsbug help-mode view warnings compile comint copyright
cc-mode cc-fonts cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs flyspell ispell pp gnus-fun qp flow-fill sort gnus-cite smiley
ansi-color mail-extr gnus-async gnus-bcklg face-remap gnus-dup gnus-ml
disp-table gnus-topic parse-time timezone byte-opt bytecomp byte-compile
nnml auth-source netrc gnus-delay gnus-draft gnus-agent gnus-srvr
gnus-score score-mode nnvirtual nntp gnus-cache gnus-msg gnus-art mm-uu
mml2015 epg-config mm-view smime password-cache dig mailcap gnus-sum
gnus-group gnus-undo nndraft nnmh nnoo nnmail mail-source format-spec
gnus-start gnus-spec gnus-int gnus-range gnus-win lua-mode-autoloads
package reporter server uniquify rcirc time-date ring minibuf-eldef gnus
gnus-ems nnheader gnus-util wid-edit cus-start cus-load derived advice
help-fns advice-preload easy-mmode message sendmail regexp-opt rfc822
mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mailabbrev mail-utils
gmm-utils mailheader japan-util tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev loaddefs button minibuffer faces cus-face files text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
dynamic-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty emacs)

-- 
The key to happiness
 is having dreams.      [from a fortune cookie]

Message #8 received at 6778 <at> debbugs.gnu.org (full text, mbox):

From: Dan Nicolaescu <dann <at> gnu.org>
To: Miles Bader <miles <at> gnu.org>
Cc: 6778 <at> debbugs.gnu.org
Subject: Re: bug#6778: 24.0.50; compile-mode fails on gcc-4.5 error messages
Date: Thu, 05 Aug 2010 00:44:58 -0400

Miles Bader <miles <at> gnu.org> writes:

> Emacs compile.el fails to parse correctly gcc 4.5 error messages that
> include a column as well as a line number.
>
> To reproduce, assuming gcc 4.5 is installed as "gcc-4.5":
>
> (1) Put the following text into a file "x.c":
>
>       int y = 1;
>       int z = q1;
>       int p = 1;
>
> (2) Now compile by doing "M-x compile", and for a compilation command,
>     use "gcc-4.5 -c x.c".
>
> (3) The compiler will output an error message like:
>
>       -*- mode: compilation; default-directory: "/tmp/" -*-
>       Compilation started at Mon Aug  2 23:07:40
>
>       gcc-4.5 -c x.c
>       x.c:2:12: error: ‘q1’ undeclared here (not in a function)
>
>       Compilation exited abnormally with code 1 at Mon Aug  2 23:07:40
>
> (4) One should be able to jump to the error by giving the command
>     `next-error' ("C-x `"); however next-error apparently is confused
>     by the error, and instead gives a prompt like:
>
>        Find this error in (default x.c:2): /tmp/
>
>
> Apparently it fails to recognize the FILE:LINE:COL: format, and thinks
> that ":2" is part of the filename.
>
> My recollection is that such error messages used to be properly parsed
> by next-error, so maybe some recent change has broken this.

Indeed.  The bug was introduced by this change:

2010-07-10  Aleksei Gusev  <aleksei.gusev <at> gmail.com>  (tiny change)

      * progmodes/compile.el (compilation-error-regexp-alist-alist): Add
         regexps for cucumber and ruby.

Message #13 received at 6778 <at> debbugs.gnu.org (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Miles Bader <miles <at> gnu.org>
Cc: Dan Nicolaescu <dann <at> gnu.org>, 6778 <at> debbugs.gnu.org
Subject: Re: bug#6778: 24.0.50; compile-mode fails on gcc-4.5 error messages
Date: Sat, 14 Aug 2010 20:06:05 -0400

> Emacs compile.el fails to parse correctly gcc 4.5 error messages that
> include a column as well as a line number.

I've checked in a fix (by giving the Ruby rule a lower priority than
Gnu).  Thanks.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.