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Emacs crashes unless using -nw option

From: Brian Parent
Subject: Emacs crashes unless using -nw option
Date: Thu, 7 Oct 2004 15:31:13 -0700 (PDT)

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
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Your bug report will be posted to the address@hidden mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.3.1 (sparc-sun-solaris2.8, X toolkit)
 of 2004-10-04 on ratbert.ucsd.edu
configured using `configure  -prefix=/software/common/gnu'
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: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Emacs crashes with a segmentation fault when run in X windows mode.
Emacs runs fine with "-nw" flag.

[ratbert] [14:56]: emacs
Fatal error (11).Segmentation fault (core dumped)

Using gcc 3.3.3 and gnu ld with LDFLAGS="-z nocombreloc" fixes
the problem.  Using Sun's compilers and link editors fixes the problem.

I found a reference to the problem in the newsgroup gnu.emacs.bug:

> From: Eric S. Raymond (address@hidden)
> Subject: Finding things in the PROBLEMS file is too hard (fix included).
> Newsgroups: gnu.emacs.bug
> Date: 2004-08-16 08:10:03 PST 
> ** Emacs crashes with SIGSEGV in XtInitializeWidgetClass
> It crashes on X, but runs fine when called with option "-nw".
> This has been observed when Emacs is linked with GNU ld but without passing
> the -z nocombreloc flag.  Emacs normally knows to pass the -z nocombreloc
> flag when needed, so if you come across a situation where the flag is
> necessary but missing, please report it via M-x report-emacs-bug.
> On platforms such as Solaris, you can also work around this problem by
> configuring your compiler to use the native linker instead of GNU ld.

where it asked that such problems be reported, hence this note.

To configure, I used:
(using tcsh)
mkdir /software/nonrdist/build/emacs-21.3
cd /software/nonrdist/build/emacs-21.3
setenv LDFLAGS "-R /software/common/lib"
/src/gnu/emacs-21.3/configure -prefix=/software/common/gnu 

The "-R /software/common/lib" setting is needed so temacs knows where
to find libpng.
By using

setenv LDFLAGS "-R /software/common/lib -z nocombreloc"

instead of the previous LDFLAGS setting, the problem goes away, Emacs runs
with X.  The version of X is whatever Sun distributes with Solaris 8.

Recent input:
M-x b u g ? DEL DEL DEL r e p o ? r SPC TAB RET

Recent messages:
For information about the GNU Project and its goals, type C-h C-p.
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