Re: Internal Error (overlap) for some fonts when running make

[James]

Werner

On 05/11/2019 21:27, Werner LEMBERG wrote:
> > > It's not a regression, right.
> > My first probably-not-very-correct thing to do next was check out
> > stable/2.18 and make LP from there (on the same system am building
> > latest master on) and search for the same errors.  [...]
> >
> > So is this a regression?
> My answer is still no.  Our glyph shapes, also the recently added
> ones, are ok, as far as I can see.  The problem is FontForge; to be
> more precise, the routines in the program to remove glyph overlaps.
> Right now, you get the best results with fontforge 20110222.
>
> > [..] aaand .. making current stable gives me
> >
> > The same errors
> Thanks for testing.  We then should start reporting them.  This means
> manually executing
>
>    FONTFORGE=foo mftopt1 ...
>
> to get a `.pfa' file containing overlapping contours, then executing
> `gen-emmentaler-scripts.py' to get a proper `.pe' batch file (which is
> treated as an immediate target by the make program and thus deleted
> after execution), and finally executing fontforge using the batch file
> to process the font.  Ideally, the `.pe' file should be reduced as
> much as possible, still triggering the warning messages.


> > Well before I figure out how to do that (i.e. how to be that random
> > internet person posting issues and then getting asked technical
> > questions I probably wouldn't know how to answer).
> :-) I will eventually report the problems.  Fortunately, it's nothing
> urgent – we live with those warnings since years...

Thanks, I read the 'how to description' above but wasn't sure I could 
follow it.

I wonder, when you eventually report this, if you did a quick 1, 2, 3 
step How-To (for someone like me) even just in this email thread, as I 
think for reference purposes it would be really useful to those that 
wouldn't be intimidated by doing such a set of steps but who had less 
knowledge about fonts/fontforge and our make process like yourself. Then 
others could open tickets with FF instead of just relying on you.

Thanks

James