RFC: Cygwin 64 bit?

Yaakov (Cygwin/X) yselkowitz@users.sourceforge.net
Tue Jun 28 05:27:00 GMT 2011

On Tue, 2011-06-28 at 05:49 +0100, Andy Koppe wrote:
> On 27 June 2011 14:12, Eric Blake wrote:
> > I very much want LLP64 to match Linux; the _only_ software that should
> > be accessing w32api in the cygwin backend is the cygwin dll itself,
> Also cygutils, XWin, rxvt, mintty, and possibly more I'm not aware of.
> And users are able to mix APIs too.

There are a few more cases, such as libusb1.0.

> But yeah, tough. They're obviously outnumbered by POSIX/Linux
> software. And as Corinna pointed out, POSIX doesn't even have a
> platform macro for 32-bit long combined with 64-bit pointers (at
> http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html).
> Hence I agree with sizeof(long)==sizeof(void *).

Agreed.  The bulk of our software is written with POSIX/Linux in mind,
and I have the feeling that not following this would make things much
more difficult.


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