Re: [Bugme-new] [Bug 7724] New: asm/types.h should define __u64 if isoc99

Re: [Bugme-new] [Bug 7724] New: asm/types.h should define __u64 if isoc99

[Andrew Morton]

On Thu, 21 Dec 2006 08:17:10 -0800
bugme-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=7724
> 
>            Summary: asm/types.h should define __u64 if isoc99
>     Kernel Version: 2.6.19
>             Status: NEW
>           Severity: blocking
>              Owner: other_other@kernel-bugs.osdl.org
>          Submitter: uberlord@gentoo.org
> 
> 
> Most recent kernel where this bug did *NOT* occur:
> Distribution: Gentoo
> Hardware Environment: n/a
> Software Environment: 2.6.18 kernels and lower
> Problem Description:
> 
> Steps to reproduce:
> Download dhcpcd-3.0.7 from http://dhcpcd.berlios.de/
> extract it and type 'make'
> Watch it fail with this error
> cc -D_BSD_SOURCE -O2 -pipe -pedantic -std=c99 -Wall -Wunused -Wimplicit
> -Wshadow -Wformat=2 -Wmissing-declarations -Wno-missing-prototypes
> -Wwrite-strings -Wbad-function-cast -Wnested-externs -Wcomment -Winline
> -Wchar-subscripts -Wcast-align -Wno-format-nonliteral -Wsequence-point -Wextra
> -Wdeclaration-after-statement -c interface.c
> In file included from /usr/include/linux/rtnetlink.h:5,
>                  from interface.c:33:
> /usr/include/linux/if_link.h:43: error: expected specifier-qualifier-list
> before ___u64_
> In file included from /usr/include/linux/rtnetlink.h:7,
>                  from interface.c:33:
> /usr/include/linux/neighbour.h:92: error: expected specifier-qualifier-list
> before ___u64_
> make: *** [interface.o] Error 1
> 

Re: [Bugme-new] [Bug 7724] New: asm/types.h should define __u64 if isoc99

[David Miller]

From: Andrew Morton <akpm@osdl.org>
Date: Thu, 21 Dec 2006 12:49:54 -0800

> >            Summary: asm/types.h should define __u64 if isoc99

Platform specific bug, and has nothing to do with networking.

This problem will occur with any user visible interface definition
that uses __u64, and there are several both in and outside the
networking.

x86 and perhaps others protect the __u64 definition with:

	defined(__GNUC__) && !defined(__STRICT_ANSI__)

for whatever reason, probably to avoid "long long" or something like
that.  But even that theory makes no sense.

I do not make this protection on any of the sparc ports, even 32-bit
sparc, for example, so I find it really strange that x86 does this.

Re: [Bugme-new] [Bug 7724] New: asm/types.h should define __u64 if isoc99

[Ismail Donmez]

21 Ara 2006 Per 22:58 tarihinde, David Miller şunları yazmıştı: 
> From: Andrew Morton <akpm@osdl.org>
> Date: Thu, 21 Dec 2006 12:49:54 -0800
>
> > >            Summary: asm/types.h should define __u64 if isoc99
>
> Platform specific bug, and has nothing to do with networking.
>
> This problem will occur with any user visible interface definition
> that uses __u64, and there are several both in and outside the
> networking.

This bug hit KDE modules (kdebase/kdemultimedia/kdetv/...) many times, I 
workarounded with #undef ing __STRICT_ANSI__ before including kernel headers 
which is well ugly but works.

> x86 and perhaps others protect the __u64 definition with:
>
> 	defined(__GNUC__) && !defined(__STRICT_ANSI__)
>
> for whatever reason, probably to avoid "long long" or something like
> that.  But even that theory makes no sense.

Indeed this restriction just breaks userspace apps.

Regards,
ismail

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