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Date: Fri, 16 Sep 2005 10:26:19 -0400 (EDT)
From: Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Dave Korn <dave DOT korn AT artimi DOT com>
cc: cygwin AT cygwin DOT com
Subject: RE: setup: how to handle circular dependencies?
In-Reply-To: <SERRANOaPeda2UexM500000003b@SERRANO.CAM.ARTIMI.COM>
Message-ID: <Pine.GSO.4.63.0509161022470.21521@slinky.cs.nyu.edu>
References: <SERRANOaPeda2UexM500000003b AT SERRANO DOT CAM DOT ARTIMI DOT COM>
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On Fri, 16 Sep 2005, Dave Korn wrote:

> ----Original Message----
> >From: Gerrit P. Haase
> >Sent: 16 September 2005 14:14
>
> > Hi Setup maintainers,
> >
> > I need some circular dependencies, i.e. gcc-core requires
> > gcc-core-mingw because -mno-cygwin will not work without the mingw
> > version of the gcc runtime.  However, the gcc-core-mingw package only
> > includes the runtime which needs gcc-core to be useful.
>
> > Maybe I should include the mingw gcc runtimes in the main gcc
> > packages?
>
>   I can't see the use in having them separate if gcc-core-mingw is
> really no use whatsoever on its own.  Perhaps someone else can think of
> a reason?

The only use I can see is later on, if setup allows optional dependencies,
someone may be able to save disk space by omitting gcc-core-mingw (and
other gcc-mingw packages) if they never plan to use -mno-cygwin.  At the
moment, having a circular dependency is the same as having the two in the
same package -- both will be installed (unless the user goes to great
pains to unselect one).

What I would suggest, however, is placing a stub in the main gcc package
that would produce a meaningful error on -mno-cygwin if *-mingw packages
aren't present, thus making gcc-core independent of gcc-core-mingw.  If
gcc-core-mingw is that exact stub, then by all means fold it into
gcc-core.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

If there's any real truth it's that the entire multidimensional infinity
of the Universe is almost certainly being run by a bunch of maniacs. /DA

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