[dpdk-dev] [PATCH] eal: fix build with glibc < 2.12

[Thomas Monjalon]

26/10/2017 16:05, Gonzalez Monroy, Sergio:
> On 25/10/2017 09:36, Ferruh Yigit wrote:
> > build error:
> >    CC rte_cycles.o
> >    cc1: warnings being treated as errors
> >    ...dpdk/lib/librte_eal/common/arch/x86/rte_cycles.c: In function
> >    ‘rdmsr’:
> >    ...dpdk/lib/librte_eal/common/arch/x86/rte_cycles.c:67:2: error:
> >    implicit declaration of function ‘pread’
> >    ...dpdk/lib/librte_eal/common/arch/x86/rte_cycles.c:67:2: error:
> >    nested extern declaration of ‘pread’
> >
> > from pread man page:
> > pread(), pwrite():
> >     _XOPEN_SOURCE >= 500
> >     || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
> >
> > For glibc < 2.12 _XOPEN_SOURCE >= 500 is required.
> >
> > Adding _GNU_SOURCE define to the file which implies _XOPEN_SOURCE=700
> >
> > Fixes: ad3516bb4ae1 ("eal/x86: implement arch-specific TSC freq query")
> > Cc: sergio.gonzalez.monroy at intel.com
> >
> > Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>

Applied, thanks