[lltx] TTC fonts on MacOSX

[Khaled Hosny]

Thinking again about Taco's remark on TTC fonts, I think the problem is
not in TTC fonts generally, but in Apple supplied TTC fonts. So I
suggest, instead of blacklisting all TTC fonts unconditionally, we
should explicitly blacklist the problematic ones (or even all TTC fonts
from Apple).

Also, such fonts should be blacklisted on all OSs; if they crash luatex
on mac, then they will cash it elsewhere as well, the same goes for the
LastResort font (I had it while ago, and it is available for free
download from unicode.org, so it is not a mac-only font).

We need some one with access to MacOSX to confirm this, by testing
Cambria or other TTC fonts from MS etc. and to list all broken ones.

Regards,
 Khaled

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer