From owner-freebsd-questions  Mon Jul  1  9:59:54 2002
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Date: Mon, 1 Jul 2002 18:59:38 +0200
From: Marcus Meissner <marcus@jet.franken.de>
To: Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
Cc: Scott Bolte <listS+freebsd-questions@niss.com>,
	freebsd-questions@freebsd.org, freebsd-emulators@freebsd.org,
	wine-devel@winehq.com
Subject: Re: heads up: wine 20020605 broken on FreeBSD, workaround included
Message-ID: <20020701185938.A20061@jet.franken.de>
References: <200207011338.g61DcQ601786@crag.niss.com> <Pine.BSF.4.44.0207011602370.52277-100000@naos.dbai.tuwien.ac.at>
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In-Reply-To: <Pine.BSF.4.44.0207011602370.52277-100000@naos.dbai.tuwien.ac.at>; from pfeifer@dbai.tuwien.ac.at on Mon, Jul 01, 2002 at 04:18:47PM +0200
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On Mon, Jul 01, 2002 at 04:18:47PM +0200, Gerald Pfeifer wrote:
> [ I'm now also Cc:ing this to the Wine developers, thus the full-quote.
>   In fact, all non-GLIBC platforms seem to be affected by this bug! ]
> 
> Based on your pointer, I believe I found the problem. In aclocal.m4 we
> have:
> 
>   AC_DEFUN([WINE_CHECK_ERRNO],
>   [AC_CACHE_CHECK([for reentrant libc: $1],[wine_cv_libc_r_$1],
>     [AC_TRY_RUN([int myerrno = 0;
>   char buf[256];
>   int *$1(){return &myerrno;}
>   main(){connect(0,buf,255); exit(!myerrno);}],
>     wine_cv_libc_r_$1=yes, wine_cv_libc_r_$1=no,
>     wine_cv_libc_r_$1=yes)])
>   AS_IF([test "$wine_cv_libc_r_$1" = "yes"],[$2],[$3])])
> 
> which, in configure, becomes:
> 
>   int myerrno = 0;
>   char buf256;
>   int *__error(){return &myerrno;}
>   main(){connect(0,buf,255); exit(!myerrno);}
> 
> That is, instead of an array of 256 characters, we have one character,
> and the invocation of connect() is definitely incorrect.
> 
> Could someone more familiar with autoconf please have a look at this?

The [256] is evaluated and replaced by 256 by m4. So this is not a glibc,
but an autoconf problem.

What is the autoconf version used there?

Ciao, Marcus

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