How to correctly rebase?

[Warren Young]

On Oct 16, 2015, at 1:18 AM, Achim Gratz wrote:
> 
> Warren Young writes:
>> It would be nice if rebase were smart enough to look for *.mex and *.oct
> only in known Octave directories, but
>> it isn’t my itch, so I’m not going to be doing anything about it.
> 
> I'll see if that's possible without running yet another find

How about something like 

    find /usr -name ${extensions} | grep -vP '(?<!octave)mex' | ditto-for-oct

The syntax isn’t vetted, but basically I’m saying that GNU grep’s Perl-compatible regex mode supports negative lookbehind, which seems like it should do what you want here.

I’ve restricted it to /usr on the theory that DLLs will always be in /bin, /usr/bin, /usr/lib/*, or /usr/share/*, and that /bin and /usr/bin are the same on Cygwin.  Are there any official Cygwin packages that put them elsewhere?
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