Re: man.el fails with csh (Re: Patch: Re: man.el should avoid "sh")

[Eli Zaretskii]

> Date: Sun, 30 May 2004 21:10:43 +0900 (JST)
> From: Masakazu HIGAKI <higamasa@dream.com>
> 
> Man.el has been fixed on 2 May but this fix may not work correctly
> when csh is used as default shell or emacs is invoked from csh.

Thank you for your report, but in the future, please send bug reports
about the CVS version to emacs-pretest-bug@gnu.org (the command "M-x
report-emacs-bug" will do that for you automatically).

> The fix makes man.el use a shell defined by shell-file-name variable
> to invoke external commands in Man-filter-list
> but a csh-like shell cannot accept the command lines specified
> in Man-filter-list.
> 
> So, please consider:
> - introducing a routine to choose a sh-like shell instead of csh-like shells
> or
> - changing Man-filter-list so that csh-like shells accept

I think we simply should change man.el so that it uses shell-file-name
only on non-Posix platforms, and otherwise always "/bin/sh".