>>>>> Steinar Bang <[EMAIL PROTECTED]>:

> Platform: Pentium M (Dell Latitude D600 laptop),
>         debian sarge (testing/unstable),
>         XFree86 4.3.0.dfsg.1-4,
>         qt 3.3.2-0pre2,
>         kde 3.2.2-1,
>         fontconfig 2.2.3-1

> When I came back from vacation, I did an "apt-get dist-upgrade" which
> upgraded a lot of packages.  After this, my own Qt application has
> acted strangely.  It prints out
>       Fontconfig error: line 1: unknown encoding
>       Fontconfig error: Cannot load default config file
> to the console when starting up, and comes up with a really strange
> looking font (from the output resulting from setting FC_DEBUG=1, it
> looks like it may be a font called "Arioso"?).

> I'm aiming for helvetica, which should be the default font for Qt
> anyway.

What caused this problem was that my application was linked with two
separate versions of expat, both as shared libraries.

I verified this by eliminated my application's need for my own version
of expat, and instead made it use the same version as Fontconfig
(ie. libexpat 1.95.6-8 in debian sarge).

This made my application start up without the error message, and with
the expected Helvetica font.

But this gives me a serious performance hit, since the native expat
shared lib on debian is compiled to deliver strings as UTF-8 in single
width char strings, while my code is actually expecting UTF-16 in
short int arrays (or wchar_t arrays).  I don't know what to do about
that.

I'm guessing the character width/encoding compile time difference, is
probably what caused the Fontconfig errors in the first place.


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