[tex-live] fc-cache documentation ?

[Philip Taylor]

Siep Kroonenberg wrote:
> On the dark side: the fc-cache run, if triggered by xetex, apparently can not or will not overwrite the original file d031bbba323fd9e5b47e0ee5a0353f11-x86.cache-7 but instead created a file d031bbba323fd9e5b47e0ee5a0353f11-x86.cache-7.NEW
>
> Removing the old one and renaming the new one restores normality. Whether the new font is actually used makes no difference. 
Yes, I referred strange behaviour in my e-mail of 09:50 today:

> Given that, during my earlier test, I was able to see XeTeX re-populate C:\TeX\Live\2016\texmf-var\fonts\cache when I emptied it by hand, it is not clear to me why it cannot now re-create the cache(s) once and once only and then allow my compilation to proceed without a further need to re-create the caches on subsequent runs.  Could a clue to the problem lie in the name of the only one of the cache files to have been modified today :
>> d031bbba323fd9e5b47e0ee5a0353f11-x86.cache-7.NEW
> The first line of this file contains the string :
>
>
>> Version:1.0 StartHTML:0000000107 EndHTML:0000000598 StartFragment:0000000538 EndFragment:0000000562
>>
>> C:/Windows/fonts
>>
-- 
Philip Taylor