Debian Bug report logs - #445436
manpages-dev: fstatat: #include <sys/stat.h> does not define AT_SYMLINK_NOFOLLOW

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Subject: Bug#445436: manpages-dev: fstatat: #include <sys/stat.h> does not define AT_SYMLINK_NOFOLLOW
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Date: Mon, 08 Oct 2007 21:52:00 +0200
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tags 445436 fixed-upstream
thanks

Hi Timo,

Timo Juhani Lindfors wrote:
> Package: manpages-dev
> Version: 2.63-1
> Severity: wishlist
> 
> Steps to reproduce:
> 1) cat >testcase.c <<EOF
> #define _ATFILE_SOURCE
> #include <sys/stat.h>
> #include <stdio.h>
> 
> int main(int argc, char *argv[]) {
>     printf("%d\n", AT_SYMLINK_NOFOLLOW);
>     return 0;
> }
> EOF
> 2) gcc -c testcase.c
> 
> Expected results:
> 2) gcc compiles code into testcase.o
> 
> Actual results:
> 2) compilation fails with the error messages
> 
> a.c: In function 'main':
> a.c:6: error: 'AT_SYMLINK_NOFOLLOW' undeclared (first use in this function)
> a.c:6: error: (Each undeclared identifier is reported only once
> a.c:6: error: for each function it appears in.)
> 
> even though ma fstatat mentions that
> 
> #define _ATFILE_SOURCE
> #include <sys/stat.h>
> 
> should be enough to get AT_SYMLINK_NOFOLLOW defined.
> 
> More info:
> 1) It seems that
> 
> #include <fcntl.h>
> 
> defines AT_SYMLINK_NOFOLLOW -- maybe this should be documented?

You are of course quite right, and the fault applies to many other related
pages as well.  This the fix for upstream 2.68:

faccessat.2
fchmodat.2
fchownat.2
fstatat.2
futimesat.2
linkat.2
mkdirat.2
mknodat.2
readlinkat.2
renameat.2
symlinkat.2
mkfifoat.3
    mtk, after Debian bug 445436 by Timo Juhani Lindfors
        Added <fcntl.h> to SYNOPSIS.

Thanks for your report.

Michael

-- 
Michael Kerrisk
maintainer of Linux man pages Sections 2, 3, 4, 5, and 7

Want to help with man page maintenance?  Grab the latest tarball at
http://www.kernel.org/pub/linux/docs/manpages/
read the HOWTOHELP file and grep the source files for 'FIXME'.

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