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Subject:	RE: OT: possible project/research project
Date:	Thu, 21 Mar 2002 20:20:50 +1100
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From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	"Gary R. Van Sickle" <g DOT r DOT vansickle AT worldnet DOT att DOT net>, <cygwin AT cygwin DOT com>
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> -----Original Message-----
> From: Gary R. Van Sickle [mailto:g DOT r DOT vansickle AT worldnet DOT att DOT net] 
> Sent: Thursday, March 21, 2002 2:25 PM

> #1 is basically the same as what you propose, though I'm not 
> sure I'm wild about the DLL idea; if everything's a builtin, 
> why not just statically link?

Several reasons.
1) I'm a user and I want foo-version of bar. How do I get that?
2) I'm in cmd.exe and want to run bar - does it still exist?
3) I'm running setup.exe and ls has been updated - do I download an
updated fileutils package or an updated bash package?
4) I'm a user and I want to add a new builtin.
 
One thing I'm considering doing is contributing a posix_spawn and
posix_spawnp to cygwin, to enhance the vfork capability. That should
allow patchs to be contributed upstream to gcc etc to remove fork -
because posix_spawn is a standard, it wouldn't be see as a cygwin hack.

Rob

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