From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michal Rokos <michal.rokos@nextsoft.cz>
Subject: Re: [PATCH v3] autoconf: Test FREAD_READS_DIRECTORIES
Date: Tue, 4 Mar 2008 16:30:07 +0100
Organization: NextSoft
Message-ID: <200803041630.07585.michal.rokos@nextsoft.cz>
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To: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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Hello,

On Tuesday 04 March 2008 15:59:02 Johannes Schindelin wrote:
> On Tue, 4 Mar 2008, Michal Rokos wrote:
> > +AC_RUN_IFELSE(
> > +	[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
> > +		[[char c;
> > +		FILE *f = fopen(".", "r");
> > +		if (! f) return 0;
> > +		if (f && fread(&c, 1, 1, f) > 0) return 1]])],
> > +	[ac_cv_fread_reads_directories=no],
> > +	[ac_cv_fread_reads_directories=yes])
>
> I do not see the issue addressed that I saw on msysGit.

ahh, sorry I've included some old one. Now it's
+AC_RUN_IFELSE(
+	[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+		[[char c;
+		FILE *f = fopen(".", "r");
+		return f && fread(&c, 1, 1, f)]])],
+	[ac_cv_fread_reads_directories=no],
+	[ac_cv_fread_reads_directories=yes])

I've tried to reproduce, but I failed to do so. When I put "return 0;" it 
detect that "no"; when I return something else, "yes" is detected - as it 
should.

The C snippet in configure script looks like:
$ac_includes_default
int
main ()
{
char c;
                FILE *f = fopen(".", "r");
                return f && fread(&c, 1, 1, f)
  ;
  return 0;
}

Does your autoconf create the same thing?

Michal