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Bug#683943: luatex: fontconfig overridden by OSFONTDIR in default settings

Reuben Thomas <rrt@sc3d.org> writes:

> On 19 August 2012 20:43, Frank Kuester <frank@kuesterei.ch> wrote:
>> As far as I read the text quoted above, OSFONTDIR is _not_ meant for
>> this.  It is meant to access fonts outside the TEXMF trees, and if an
>> engine has a better way to achieve this, I don't see how this engine
>> should require the variable to be unset.
> I would be very happy with this interpretation; I was trying, to see
> things from the implementors' point of view. In particular it seems
> logical to me that a TeX mechanism (OSFONTDIR kpathsea variable)
> should override a platform/build-specific mechanism (fontconfig). 

Why override?  Why not simply add an other possibility?

> The behaviour I've described is how it currently works (or at least,
> seems to),

... in luatex...

> and that in itself is something not to change lightly. 


> As
> to how it is intended to work, given the lack of authoritative
> documentation, I can only suggest you consult the source code (for
> comments) or failing that its author(s)/maintainer(s).

Since this seems to be something that affects many engines, I'd rather
ask on the texlive or tex-k lists first.

Regards, Frank

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