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From: Eli Zaretskii <eliz AT gnu DOT org>
To: cygwin AT cygwin DOT com
In-reply-to: <20060817120923.GF20467@calimero.vinschen.de> (message from 	Corinna Vinschen on Thu, 17 Aug 2006 14:09:23 +0200)
Subject: Re: change in behavior of make from 3.80 to 3.81
Reply-to: Eli Zaretskii <eliz AT gnu DOT org>
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Date: Thu, 17 Aug 2006 09:30:10 -0400
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> Date: Thu, 17 Aug 2006 14:09:23 +0200
> 
> On Aug 17 05:46, Eli Zaretskii wrote:
> > > > Windows doesn't allow colons anywhere else in file names anyway.
> > > 
> > > That's not quite right.  Colons are also used in file names when the
> > > file name denotes an alternative named stream on NTFS file systems.
> > 
> > Right, I forgot about this obscure feature.
> > 
> > However, this feature is not specific to Cygwin, so if support for
> > such names is important (I suspect it isn't, but that's me), GNU Make
> > should be modified to support them in all Windows ports; any solution
> > that is good for other Windows ports will be good for Cygwin, and vice
> > versa.  Do you agree?
> 
> Hmm, no, sorry.  I can't agree to "any solution that is good for other
> Windows ports will be good for Cygwin".  This should be decided on a
> case by case basis.

Of course!  I was talking only about _this_specific_case_, i.e. the
support for ADS.  I was saying that, if we need to support it, the
same support will work well for all Windows ports.

> Colons are only a problem in the TARGETS and PREREQUISITES part of a
> make rule, not in the COMMAND part.  But it only makes marginal sense to
> use the ADS name for dependency checks, because a file has only one set
> of timestamps for the whole file, not multiple timestamps, one per data
> stream.  The availablilty on only one filesystem type restricts the
> usefulness further.  So the ability to use ADS names in the COMMAND part
> of a rule should be sufficient.

Agreed.

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