ebtables-2.0.10-1: a build problem

ebtables-2.0.10-1: a build problem

[Sergei Zhirikov]

Hi,

Just want to let you know that I've encountered a small problem while trying to build ebtables-2.0.10-1:

cc1: warnings being treated as errors
In file included from /usr/include/asm/sigcontext.h:5:0,
                  from /usr/include/bits/sigcontext.h:28,
                  from /usr/include/signal.h:339,
                  from ebtables.c:29:
include/linux/types.h:13:2: error: #warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders"
make: *** [ebtables.o] Error 1

The problem is that, even though "include/ebtables_u.h" defines __EXPORTED_HEADERS__ to prevent exactly this from happening, "include/linux/types.h" that throws the error is pulled in *before* that indirectly via "signal.h". (I'm using gcc-4.5.1, glibc-2.12.1, kernel headers 2.6.35.11.)

To be able to proceed with the build I had to remove "#define __EXPORTED_HEADERS__" from "include/ebtables_u.h" and "getethertype.c" and add "-D__EXPORTED_HEADERS__" to CFLAGS instead, although i"m not sure that was the best solution.

--
Regards,
Sergei.

Re: ebtables-2.0.10-1: a build problem

[Bart De Schuymer]

Hello Sergei,

Thanks for the report.
I finally figured out I have to run "make headers_install" in the kernel 
source directory to get sanitized headers. That removes the need for 
this __EXPORTED_HEADERS__ stuff. I'll be releasing an updated version 
later this week.

Bart


On 18-07-11 19:03, Sergei Zhirikov wrote:
> Hi,
>
> Just want to let you know that I've encountered a small problem while 
> trying to build ebtables-2.0.10-1:
>
> cc1: warnings being treated as errors
> In file included from /usr/include/asm/sigcontext.h:5:0,
>                  from /usr/include/bits/sigcontext.h:28,
>                  from /usr/include/signal.h:339,
>                  from ebtables.c:29:
> include/linux/types.h:13:2: error: #warning "Attempt to use kernel 
> headers from user space, see http://kernelnewbies.org/KernelHeaders"
> make: *** [ebtables.o] Error 1
>
> The problem is that, even though "include/ebtables_u.h" defines 
> __EXPORTED_HEADERS__ to prevent exactly this from happening, 
> "include/linux/types.h" that throws the error is pulled in *before* 
> that indirectly via "signal.h". (I'm using gcc-4.5.1, glibc-2.12.1, 
> kernel headers 2.6.35.11.)
>
> To be able to proceed with the build I had to remove "#define 
> __EXPORTED_HEADERS__" from "include/ebtables_u.h" and "getethertype.c" 
> and add "-D__EXPORTED_HEADERS__" to CFLAGS instead, although i"m not 
> sure that was the best solution.
>
> -- 
> Regards,
> Sergei.
>
> -- 
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-- 
Bart De Schuymer
www.artinalgorithms.be