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To: "David Carter" <david AT carter DOT net>
Cc: <cygwin AT cygwin DOT com>
Subject: Re: Up-to-date info on '-mno-cygwin' vs. Mingw32
References: <000501c13210$54396e40$6401a8c0 AT atl DOT mediaone DOT net>
From: James Youngman <jay AT gnu DOT org>
Date: 31 Aug 2001 22:51:45 +0100
In-Reply-To: <000501c13210$54396e40$6401a8c0@atl.mediaone.net>
Message-ID: <x6ae0f99u6.fsf@no-such-thing-as-a.free-lunch.demon.co.uk>
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"David Carter" <david AT carter DOT net> writes:

> - use the cygwin tools, passing -mno-cygwin to the compiler (& linker? I
> do it to be sure, but not sure if it's required)

As an (off-topic) aside, I noticed recently that it makes a difference
whether you pass -O to the preprocessor or not, but it appears that
autoconf doesn't know that (configure doesn't pass the -O to the
preprocessor) and glibc behaves differently (G<IBC 2.2.3 #defines
printf, for example).


(this test on GCC 2.96, but I initially noticed it with GC 2.95.3
under Cygwin 1.3.2.) 

bash-2.04$ diff <(cpp -dM -E - < /dev/null ) <(cpp -dM -O4 -E - < /dev/null) 
11a12
> #define __OPTIMIZE__ 1

-- 
James Youngman
Manchester, UK.  +44 161 226 7339
PGP (GPG) key ID for <jay AT gnu DOT org> is 64A95EE5 (F1B83152).

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