Re: no links in PDFs with gs 9.56.1

[Jean Abou Samra]

Le 07/08/2022 à 11:43, Thomas Morley a écrit :
> Am Sa., 30. Juli 2022 um 12:39 Uhr schrieb Werner LEMBERG <wl@gnu.org>:
> > > > In case you are forced to use 9.56.1, add `-dNEWPDF=false` to the
> > > > gs command line options (in file `Documentation/GNUmakefile`) to
> > > > make gs use the old PDF engine, which produces good results.
> > > So this is about the post-processing step with extractpdfmark + gs,
> > > right?
> > Yes – I always build the documentation with 'extractpdfmark'; maybe
> > this gs bug doesn't show up otherwise.
> >
> >
> >      Werner
> If I build the docs I use 'extractpdfmark' as well. In the light of
> this thread I tried ghostscript self-compiled from their most recent
> master, giving me 9.57.0.
> Though, compile time is bad:
> Always doing
> time make LANGS='en' doc -j5 CPU_COUNT=5
> I get for
>
> Uncompiled guile
>
> real    111m56,272s
> user    190m51,445s
> sys    17m51,542s
>
> Compiled guile
>
> real    98m43,545s
> user    162m33,293s
> sys    15m33,015s
>
> This is insane. Tbh, I did not check whether pdf links are present but
> directly downgraded to gs 9.55.0, with below timing values:
>
> Uncompiled guile
>
> real    50m20,112s
> user    129m33,921s
> sys    17m42,618s
>
> Compiled guile
>
> real    44m32,826s
> user    116m10,453s
> sys    17m1,201s
>
>
> Better, but still bad, regarding the fact I compiled only the english docs.
>
> Yes, I have a weak laptop...
>
> No idea, if we can do anything to improve the situation.


Regardless of the issue (which is problematic indeed), I would
advise building without extractpdfmark
(../configure --without-extractpdfmark). Its only advantage is to
reduce the size of PDFs. If you just want to check the doc section
you wrote, that's not really needed.


Best,
Jean


> Anyway, I thought I share my observations.