[Buildroot] [PATCH] Raspberry Pi - WiringPi Library Package

Baruch Siach baruch at tkos.co.il
Thu Jul 11 06:04:19 UTC 2013


Hi Guillermo,

On Wed, Jul 10, 2013 at 11:00:08PM -0700, Guillermo A. Amaral wrote:
> On Thu, Jul 11, 2013 at 08:33:59AM +0300, Baruch Siach wrote:
> > On Wed, Jul 10, 2013 at 10:19:20PM -0700, Guillermo A. Amaral wrote:
> > > From: "Guillermo A. Amaral" <g at maral.me>
> > > 
> > > 
> > > Signed-off-by: Guillermo A. Amaral <g at maral.me>
> > > ---

[...]

> > > ++#ifndef O_CLOEXEC
> > > ++#define O_CLOEXEC 0
> > 
> > Are you sure? I see
> > 
> > #define O_CLOEXEC      02000000
> > 
> > in include/uapi/asm-generic/fcntl.h.
> > 
> 
> Hi baruch,
> 
> Usage of O_CLOEXEC in wiringPi was added very recently, it started failing
> after that. I hear it still works if you're using glibc though (I haven't
> tested it).
> 
> Here's the output if you remove the patch:
> 
> 	/development/test/build/wiringpi-02a3bd8d8f2ae5c873e63875a8faef5b627f9db6/wiringPi/wiringPi.c: In function ‘wiringPiSetup’:
> 	/development/test/build/wiringpi-02a3bd8d8f2ae5c873e63875a8faef5b627f9db6/wiringPi/wiringPi.c:1544:49: error: ‘O_CLOEXEC’ undeclared (first use in this function)
> 	/development/test/build/wiringpi-02a3bd8d8f2ae5c873e63875a8faef5b627f9db6/wiringPi/wiringPi.c:1544:49: note: each undeclared identifier is reported only once for each function it appears in
> 	make[2]: *** [wiringPi/CMakeFiles/wiringPi.dir/wiringPi.c.o] Error 1
> 	make[1]: *** [wiringPi/CMakeFiles/wiringPi.dir/all] Error 2
> 	make: *** [all] Error 2

I didn't say you should remove this patch, just use the correct value. Setting 
O_CLOEXEC to 0 makes it effectively a no-op. Is this intended?

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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