[MPlayer-dev-eng] Re: [bug] help/help_diff.sh again

[GoTaR]

On Sat, Jan 18, 2003 at 10:44:54 +0100, Arpi wrote:

> > Hey, did anyone read this!?
> 
> yes, but i didn't like it...
> 
> what if someone has no external echo command?

Yes, that's problem.

> or it isn't at /bin/ but
> somewhere else? (/usr/bin/ for example, like here)

If there is external echo it can't be in /usr according to FHS.
Question is what about non-FHS compliant systems.

> imho sth like
> 
> ECHO=`which echo`
> if -z $ECHO ; then
>   ECHO='echo'
> fi
> 
> should be added at least

No. And what if someone has no external _which_ command?

~: which which
which: shell built-in command
~: =which
zsh: which not found

ash and pdksh don't have internal, so it would break. bash cannot use
internal when called by sh. zsh can, but returns:

echo: shell built-in command

(EVEN when there is extrenal one) so it won't pass -z test.
One can get external with path passing =command (=echo) to zsh.


There must be some plain requirements for building. #!/bin/sh is
ambigous and as you can see - it doesn't guarantee providing right
functionality. Consider falling back to #!/bin/bash or rewriting script
in perl or sth.
Anyway, the best way would be to use locale and gettext()...

-- 
GoTaR <priv0.onet.pl->gotar>
PLD stuff at http://mops.uci.agh.edu.pl/~gotar/


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