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Re: Why are the 32- and 64-bit cygwin1.dlls incompatible?
- From: Warren Young <warren at etr-usa dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 23 Aug 2013 10:33:22 -0600
- Subject: Re: Why are the 32- and 64-bit cygwin1.dlls incompatible?
- References: <52162CA9 dot 9080002 at etr-usa dot com> <20130822171419 dot GQ2562 at calimero dot vinschen dot de> <CA+sc5mnedD0hOfzwTWYzy0QVhKC9gg-C68Nxfska-HG0HFOpLQ at mail dot gmail dot com> <20130823094919 dot GT2562 at calimero dot vinschen dot de>
On 8/23/2013 03:49, Corinna Vinschen wrote:
Since it neither makes sense to propagate the Cygwin-specific
child_info_spawn block to native processes, nor to Cygwin processes
with a different bitsize, I just disabled this, so you can now start
32 bit Cygwin processes from 64 bit Cygwin processes and vice versa,
starting with the snapshots I'm just generating.
Beautiful!
I just tried this snapshot:
http://cygwin.com/snapshots/x86_64/cygwin1-20130823.dll.bz2
and my 'ls' test succeeded.
Alas, my Orpie test failed:
$ PATH=/cygdrive/c/cygwin32/lib/lapack /cygdrive/c/cygwin32/bin/orpie
Fatal error: exception Assert_failure("main.ml", 30, 3)
Line 30 of main.ml is:
assert (cbreak ());
So....ncurses isn't working correctly across the exec() boundary?
I just hope this won't lead to more confusion if 32 bit processes
started from 64 bit (or vice versa) don't act as expected in some
circumstances.
Oh, it probably will, but a cygcheck dump will tell us when this is
probably happening, because both Cygwin bins will be in the PATH.
I'm hoping this new behavior will simply serve to let more people move
to Cygwin 64 before absolutely everything is ported.
To my mind, the biggest negative consequence of this improvement is that
it might delay the porting of some packages by removing an incentive.
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