Re: M-x ediff-files doesn't notify user of missing ediff-diff-program

[Nick Roberts]

Andrew M. Scott writes:
 > Neither
 > 
 >  M-x ediff-buffers buf1 buf2
 > nor
 >  M-x ediff-files file1 file2
 > 
 > complain if there isn't an ediff-diff-command on exec-path. Instead, 
 > a user can type consecutive "n"'s in the *Ediff Control Panel* without
 > seeing any highlighted diffs (which erroneously leads the user to
 > think there are no diffs).

It worked in Emacs 21.3.  This seems to be a regression in ediff-exec-process
(ediff-diff.el) :

1.54 (kifer 18-Jun-06): (condition-case nil
1.54 (kifer 18-Jun-06):     (apply 'call-process program nil buffer nil args)
1.54 (kifer 18-Jun-06):   (error (format "Cannot execute program %S." program)))

-- 
Nick                                           http://www.inet.net.nz/~nickrob