ediff-diff-options have no effect

ediff-diff-options have no effect

[Florian Kaufmann]

Hello

No matter what garbage I assign to ediff-diff-options, ediff (i.e.
diff, the content of ediff-diff-program) behaves in its standard
configuration. Setting ediff-diff-program however has an effect. I'm
sure that I wrote ediff-diff-options correctly, because if I invoke the
help on this variable (describe-variable C-h v), I get the correct new
content I assigned to this variable and the correct description. Any
Ideas?

Thank you

Flo

Re: ediff-diff-options have no effect

[Florian Kaufmann]

If I invoke diff from the shell with the options that interest me, -wB
in this case, everything works as intended.

Flo

Re: ediff-diff-options have no effect

[Kevin Rodgers]

Florian Kaufmann wrote:
> No matter what garbage I assign to ediff-diff-options, ediff (i.e.
> diff, the content of ediff-diff-program) behaves in its standard
> configuration. Setting ediff-diff-program however has an effect. I'm
> sure that I wrote ediff-diff-options correctly, because if I invoke the
> help on this variable (describe-variable C-h v), I get the correct new
> content I assigned to this variable and the correct description. Any
> Ideas?

There is some strange stuff in ediff-diff.el regarding
ediff-diff-options that indicates it needs to be set via customize
(vs. setq).  I don't know how to invoke the customize machinery directly
from .emacs, but it appears that the end effect is supposed to be:

(ediff-reset-diff-options 'ediff-diff-options "--your-options-here")

Does that work?

-- 
Kevin

Re: ediff-diff-options have no effect

[Florian Kaufmann]

> (ediff-reset-diff-options 'ediff-diff-options "--your-options-here")
>
> Does that work?

Unfortunately it doesn't. I also tried to use customize variable
mechanism. Still nothing happens. However, if -c is within my options,
indeed an error message is shown, which is the correct behaviour. Maybe
I have to write a small bash script, which calls diff with the correct
argument, and whitch's name I put into ediff-diff-program. 

Flo