libbpf: fix build warning on setns (#1246)
authorColin Ian King <colin.king@canonical.com>
Thu, 6 Jul 2017 12:58:17 +0000 (13:58 +0100)
committerSasha Goldshtein <goldshtn@gmail.com>
Thu, 6 Jul 2017 12:58:17 +0000 (15:58 +0300)
commita12db19ecfcb9759c27feae4388764127f9d5386
tree4344098f68ae944392e9342c687a1f83ae23b595
parent34cbbfe531372f156370ede28133506509050258
libbpf: fix build warning on setns (#1246)

The macro _GNU_SOURCE should be defined to pick up the function
declaration for setns.  Fixes build warning:

"src/cc/libbpf.c:482:7: warning: implicit declaration of
 function 'setns' [-Wimplicit-function-declaration]
   if (setns(target_fd, CLONE_NEWNS)) {"

Signed-off-by: Colin Ian King <colin.king@canonical.com>
src/cc/libbpf.c