[patch i386 mingw]: Disallow DW2 unwind for 64-bit and multilib

[Jason Merrill]

On 07/24/2009 03:55 AM, Kai Tietz wrote:
> 2009/7/24 Arnaud Charlet<charlet@adacore.com>:
>> BTW, do you know how hard it would be to get dwarf2 unwind based exceptions
>> working on 64 bit windows? What are the missing/blocking points?
>
> The major issue is that the current implementation is using code
> analysis for finding frame information. This is for x64 even harder
> then for x86 as there much more possibilities of prologue entries.

How is this different from other x86_64 targets?

Jason