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Mail Archives: cygwin-apps/2001/03/15/08:59:56

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From: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To: <cygwin-apps AT sources DOT redhat DOT com>, "Earnie Boyd" <autoconf AT gnu DOT org>,
"edward" <tailbert AT yahoo DOT com>
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Subject: Re: updated win32 macro
Date: Fri, 16 Mar 2001 00:54:01 +1100
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----- Original Message -----
From: "Earnie Boyd" <earnie_boyd AT yahoo DOT com>
To: "edward" <tailbert AT yahoo DOT com>
Cc: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>;
<cygwin-apps AT sources DOT redhat DOT com>; <autoconf AT gnu DOT org>
Sent: Friday, March 16, 2001 12:41 AM
Subject: Re: updated win32 macro


> I still don't think all of this fuss is really worth it but I'm going
to
> add my 29 cents worth in this thread.
>
> AISI, what is needed is only whether or not the the compiler supports
a
> -mwin32 switch.  Then the configure.in can use it.

Not true if you want to support users with cygwin gcc 2.95.2-6. That's
what I didn't like about the code Chris was putting in his configure.in
and prompted me to put into practice what I'd been thinking about. As
has already been pointed out -mwin32 may not be here to stay. The
concept of a compiler being able to build win32 source files into
objects is though.

> Code for what's needed in a portable fashion and don't worry about the
> what ifs.
>
> Earnie.

You're right Earnie - as long as all your source files /modules/targets
are appropriate on every platform. I've covered this just now in another
mail so I won't repeat myself. configure is the best place to turn such
high level things on or off.

The core test is done and dusted - the volume was really just sorting
the best way of letting the configure script writer use that test.

The stuff about whether to define WIN32 .. hangon - breakthrough.

We're really doing two _completely_ separate things (as Akim has been
pointing at with the AC_SYS_WIN32 thing).

1st thing, active win32 compiler support if possible.
2nd thing, test for the feature (as you just pointed out - a
HAVE_WIN32_THREAD thread)

But I don't agree that it is _only_ code based. It is feature based.

So I retract my request for a WIN32 define. I'll just craft up a
AC_SYS_WIN32 as Akim suggested, but that won't be called by the compiler
support macro. It'll be completely separate.

Rob


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