[luatex] bus error on .ttc fonts

[Martin Schröder]

2010/5/16 Taco Hoekwater <taco at elvenkind.com>:
> Snow Leopard's .ttc files are all broken :( Apple's format is subtly
> different from Microsoft's, without any actual documentation on how
> it is different. This is a known bug with 0.60, and one I hope to fix
> for 0.70 (but without documentation and without Snow Leopard, I don';t

In the meantime can we handle these broken files with an error message
instead of crashing?

Best
   Martin