In Emacs 22.2, the first `next-error' in certain circumstances goes to
the wrong error line in the target file. With the dummy file foo.txt
below, and on a 50 line console,
emacs -Q foo.txt
C-v # page down in foo.txt
C-x b Ret # back to *scratch* buffer
M-x compile
echo 'foo.txt:''150: an error here'
C-x ` # next-error
=> goes to foo.txt with point at line 56
The echo simply produces a compilation buffer claiming an error at
foo.txt line 150, but then next-error goes to line 56. On a different
size terminal or under X you get a different wrong position, like line
45 or 24.
The recipe above is rather specific, there's all sorts of ways it works
correctly. If you don't scroll-up, or if you leave foo.txt the current
buffer, then it's fine. I've struck this on various occasions without
ever being able to reproduce it, since a second try in the same session
goes ok! My recent-ish build of the current emacs cvs head still seems
to have the problem too, whatever it is.
In GNU Emacs 22.2.1 (i486-pc-linux-gnu, GTK+ Version 2.12.3)
of 2008-04-11 on raven, modified by Debian
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/emacs22:/etc/emacs:/usr/local/share/emacs/22.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/22.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/22.2/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''
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_AU
locale-coding-system: iso-8859-1
default-enable-multibyte-characters: t
foo.txt
Description: Text document
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