NetBSD Problem Report #48340

From rhialto@falu.nl  Thu Oct 24 21:24:53 2013
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Message-Id: <201310242124.r9OLOndE020794@murthe.falu.nl>
Date: Thu, 24 Oct 2013 23:24:49 +0200 (CEST)
From: rhialto@falu.nl
Reply-To: rhialto@falu.nl
To: gnats-bugs@gnats.NetBSD.org
Cc: rhialto@falu.nl
Subject: _POSIX_C_SOURCE or -posix and <net/bpf.h> don't mix
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>Number:         48340
>Category:       kern
>Synopsis:       _POSIX_C_SOURCE or -posix and <net/bpf.h> don't mix
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 24 21:25:00 +0000 2013
>Last-Modified:  Sat Nov 02 17:47:30 +0000 2013
>Originator:     Rhialto
>Release:        NetBSD 6.1.1
>Organization:

>Environment:


System: NetBSD murthe.falu.nl 6.1.1 NetBSD 6.1.1 (MURTHE6.1.1) #4: Sat Sep 28 12:38:49 CEST 2013 rhialto@murthe.falu.nl:/usr/src/sys/arch/amd64/compile/MURTHE6.1.1 amd64
Architecture: x86_64
Machine: amd64
>Description:

	The following little program does not compile:

$ cat b.c
#define _POSIX_C_SOURCE
#include <sys/types.h>
#include <net/bpf.h>

int main(int argc, char *argv[])
{
    return 0;
}
$ gcc b.c
In file included from b.c:3:0:
/usr/include/net/bpf.h:51:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'bpf_u_int32'
/usr/include/net/bpf.h:72:2: error: expected specifier-qualifier-list before 'u_int'
/usr/include/net/bpf.h:90:2: error: expected specifier-qualifier-list before 'u_int'
/usr/include/net/bpf.h:106:2: error: expected specifier-qualifier-list before 'u_short'
In file included from b.c:3:0:
/usr/include/net/bpf.h:264:2: error: expected specifier-qualifier-list before 'u_char'
/usr/include/net/bpf.h:279:2: error: expected specifier-qualifier-list before 'u_int'
/usr/include/net/bpf.h:384:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'bpf_filter'

>How-To-Repeat:
	See above.

	If you remove the #define _POSIX_C_SOURCE, it compiles cleanly.

	If you remove #define _POSIX_C_SOURCE but compile with

	gcc -posix b.c

	it fails too. I suppose -posix #defines _POSIX_C_SOURCE.

	Analysis: see PR standards/48339 since it is essentially the same.
>Fix:
	Similar to standards/48339, I imagine, which shows the same
	problem in a different header file.

-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- The Doctor: No, 'eureka' is Greek for
\X/ rhialto/at/xs4all.nl    -- 'this bath is too hot.'

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: standards-manager->kern-bug-people
Responsible-Changed-By: dholland@NetBSD.org
Responsible-Changed-When: Sat, 02 Nov 2013 17:47:30 +0000
Responsible-Changed-Why:
not standards compliance (same situation as 48339)


>Unformatted:

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