browse-url-mozilla fails if new-window is nil

[Davide G . M . Salvetti]

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In GNU Emacs 21.2.1 (i386-debian-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-03-22 on raven, modified by Debian
configured using `configure  i386-debian-linux-gnu --prefix=/usr 
--sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib 
--infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --with-x=yes 
--with-x-toolkit=athena --without-gif'
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:

The bug gets triggered with
"M-x browse-url-mozilla RET http://www.gnu.org/ RET"
(browse-url-new-window-flag's value is nil).

Having set debug-on-error, I get:
<======================================================================>
Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  start-process("mozilla http://www.gnu.org/"; nil "mozilla" "-remote" 
"openurl(" "http://www.gnu.org/"; nil ")")
  apply(start-process "mozilla http://www.gnu.org/"; nil "mozilla" ("-remote" 
"openurl(" "http://www.gnu.org/"; nil ")"))
  (let* ((process-environment ...) (process ...)) (set-process-sentinel process 
(\` ...)))
  browse-url-mozilla("http://www.gnu.org/"; nil)
* call-interactively(browse-url-mozilla)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)
<======================================================================>

I think the one-line attached patch fixes the problem.

Recent input:
C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC 
C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC 
C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC 
C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC 
C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC C-SPC 
C-SPC C-SPC C-SPC C-SPC C-SPC M-x b r o <tab> - m o 
z i <tab> <return> h t t p : / / w w w . g n u . o 
r g / <return> C-p C-SPC M-> M-w q M-x e <backspace> 
r e p o r <tab> e m <tab> <return>

Recent messages:
Entering debugger...
 [2 times]
Back to top level.
Type C-x 4 b RET to restore the other window.  C-M-v to scroll the help.
Mark set [410 times]
apply: 
Entering debugger...
 [2 times]
Mark set [2 times]
Back to top level.

-- 
Salve, | GNU PG (GPG) Key ID: 9396865D
Davide | <http://www.linux.it/~salve/>

browse-url.el.patch
Description: Text Data