Re: gd & fontpath (could not find/open font)

[<pl...@pi...>]

On 18/04/12 22:50, Mojca Miklavec wrote:
> Dear Gnuplot developers,
>
> I'm still experiencing a problem with
>
>> set term png
>      Terminal type set to 'png'
>      Could not find/open font when opening font "arial", using internal
> non-scalable font
>> show fontpath
>      fontpath is
>      system fontpath is "/System/Library/Fonts" "/Library/Fonts"
> "/Users/myusername/Library/Fonts"
>
> on Mac OS X. After some experiments I came to conclusion that the
> reason might have been Microsoft Office which installed the file
>      /Library/Fonts/Microsoft/Arial.ttf
> and removed
>      /Library/Fonts/Arial.ttf
> and I guess that GD2 is unable to search recursively in font
> directories. fc-list finds the font without problems and could be used
> to search for fonts, but last time Ethan had concerns about enabling
> FontConfig:
>
>> There seem to be bugs in the libgd function gdFTUseFontConfig(), in that
>> once you turn it on you can never turn it off again.  Unless that is fixed,
>> it means that gnuplot scripts using a mixture of self-supplied fonts and
>> fontconfig-installed fonts will fail.   That would break most of my
>> web tools, for example, which provide private font files.
>
> Assuming that font-config isn't/won't be enabled (it doesn't look very
> promissing that gd team will release a new version in any reasonable
> time), I have the following questions:
>
> 1.) What is (or should be) the exact algorithm to search for arial?
> How could I convince gnuplot (gd2) to automatically find Arial.ttf
> even when it resides in /Library/Fonts/Microsoft/Arial.ttf, without my
> manual intervention? How should I tell gnuplot (gd2) to search
> recursively through all the three font paths mentioned above?
>
> 2.) What is the difference between "fontpath" and "system fontpath"
> mentioned above?
>
> Thank you,
>      Mojca
>

I've been seeing something similar on x86 linux, but have not looked 
into it.

I build using cairo , so AFAIK that means no gdlib.

Peter.