Re: diff-apply-hunk broken

[Juri Linkov]

Paul Eggert <address@hidden> writes:
> At 02 Apr 2004 20:48:04 -0500, Stefan Monnier <address@hidden> writes:
>>>> Is --label accepted by all known non-ancient diff implementations?
>>> Yes.  --label has been supported ever since diffutils 2.0, released in
>>> 1992.  These days it's safe to assume --label, if it's GNU diff.
>>
>> I can't assume GNU diff.  So how about other system's `diff'?
>
> Some "diff" implementations lack -L, so portable applications cannot
> use "diff -L".  For example, Solaris 9 "diff" lacks -L.  -L is not
> standardized by POSIX.
>
> I recall that this is not a problem with GNU Emacs, as it tests
> whether diff supports -L (or --label) before using that option.

It seems that GNU Emacs have no such a test, but fortunately there
are only three files (diff.el, smerge-mode.el and vc.el) that use
a "-L" string, so it's not a problem to replace "-L" by "--label"
in these files.

-- 
Juri Linkov
http://www.jurta.org/emacs/