[LTP] [PATCH 1/1] setxattr03: define _GNU_SOURCE to fix build on musl

[Jan Stancek]

----- Original Message -----
> From: Petr Vorel <pvorel@suse.cz>
> 
> musl defines loff_t in <fcntl.h> (already included) and guard it under
> _GNU_SOURCE.
> NOTE: glibc and others define it in <sys/types.h>
> 
> Signed-off-by: Petr Vorel <petr.vorel@gmail.com>

ACK