[Buildroot] Error while building libevas, SFD_NONBLOCK undeclared

Baruch Siach baruch at tkos.co.il
Tue Jul 9 03:10:53 UTC 2013


Hi Daniel,

Please Cc the list on your response.

On Tue, Jul 09, 2013 at 01:24:54AM +0000, Daniel. wrote:
> Baruch I use this one:
> arm-2009q1-203-arm-none-linux-gnueabi-i686-pc-linux-gnu
> 
> Is the toolchain tied to kernel headers that was compiled against?

Yes. Apparently the 2009q1 toolchain is based on kernel version 2.6.30 which 
should be fine, but for some reason it does not have SFD_NONBLOCK and 
SFD_CLOEXEC in its sys/signalfd.h header file. 2010q1 (2.6.36 based) does have 
these defines. Both toolchains are quite old anyway.

baruch

> 2013/7/8 Baruch Siach <baruch at tkos.co.il>
> >
> > On Mon, Jul 08, 2013 at 06:01:26PM +0000, Daniel. wrote:
> > > I'm receiving this error while trying to build with buildroot.
> > >
> > > make[5]: Entering directory
> > >
> > `/home/hilst/buildroot/buildroot-2013.05/output/build/libevas-1.7.4/src/bin'
> > > CC evas_cserve2_main_loop_linux.o
> > > evas_cserve2_main_loop_linux.c: In function '_signalfd_setup':
> > > evas_cserve2_main_loop_linux.c:156: error: 'SFD_NONBLOCK' undeclared
> > (first
> > > use in this function)
> > > evas_cserve2_main_loop_linux.c:156: error: (Each undeclared identifier is
> > > reported only once
> > > evas_cserve2_main_loop_linux.c:156: error: for each function it appears
> > in.)
> > > evas_cserve2_main_loop_linux.c:156: error: 'SFD_CLOEXEC' undeclared
> > (first
> > > use in this fu
> > >
> > > My .config can be found here: https://gist.github.com/gkos/5950964
> > >
> > > Any help is appreciated,
> > >
> > > I'm on archilinux using Sourcery CodeBench toolchain..
> >
> > The signalfd(2) man page says that these flags (SFD_NONBLOCK and
> > SFD_CLOEXEC)
> > are only defined since kernel version 2.6.27. It seems that your toolchain
> > uses an older kernel. Which version of the Sourcery CodeBench do you use?
> >
> > baruch

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