[Fontconfig] Patch: prefer cache files in /var/cache/fontconfig over <dir>/fonts.cache-2

[Mike FABIAN]

Takashi made a patch to prefer the cache files in
/var/cache/fontconfig over cache files in the directories where
the fonts are.

The current behaviour is the opposite, i.e. the fonts.cache-2 files
in the directories where the fonts are are preferred.

We think it is better to prefer the caches in /var/cache/fontconfig
because the directories where the fonts are (e.g. /usr/share/fonts)
might be mounted readonly, maybe from some server via NFS.

If there is a problem with these cache files in the font directories,
there is Currently no way to fix the problem on a machine mounting
these directories readonly.

/var/cache/fontconfig should be writeable, therefore one can create
good caches by calling "fc-cache -f". But this won't help if the
because the broken cache files cannot be removed from the readonly
file system, the broken cache files are still preferred.

Because "fc-cache -f" can always create good caches in
/var/cache/fontconfig, the caches there should be preferred.

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-- 
Mike FABIAN   <mfabian at suse.de>   http://www.suse.de/~mfabian
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