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X-HELO:	drew.franken.de
Date:	Wed, 31 Jan 2018 15:40:46 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: environ: fix link error on 64-bit Cygwin
Message-ID:	<20180131144046.GD4223@calimero.vinschen.de>
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On Jan 31 07:52, Eric Blake wrote:
> Forwarding from the gnulib list; is this something we should fix in
> cygwin proper?

Why does anybody remove the -Wl,--disable-auto-import flag?  What for?
The idea was to never use this flag on Cygwin and to get rid of the
dllimport/dllexport nonsense...

> On 01/31/2018 04:42 AM, Bruno Haible wrote:
> > On 64-bit Cygwin, a libunistring build fails like this:
> > [...]
> > libtool: link: x86_64-pc-cygwin-gcc -g -O2 -Wl,--disable-auto-import -o=
 .libs/test-environ.exe test-environ.o  -L/usr/local/cygwin64/lib libtests.=
a ../lib/.libs/libunistring.dll.a -liconv libtests.a -L/usr/local/cygwin64/=
lib
> > test-environ.o:test-environ.c:(.rdata$.refptr.environ[.refptr.environ]+=
0x0): undefined reference to `environ'
> > collect2: error: ld returned 1 exit status
> >=20
> > This fixes it.
> > [...]
> > +_GL_EXTERN_C __declspec(dllimport) char **environ;

But, other than that, an equivalent newlib patch would be ok.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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