commit f0b749295ccc5c4de0b8163e1d8dc281916991ef
author Sonny Rao <sonnyrao@chromium.org> Mon Apr 13 17:49:30 2015
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> Tue Apr 14 03:41:45 2015
tree 54144d257efa71bfe099d6a922cf6d54152d80eb
parent a48d1f674b53deac8b486c1acf2dd8b9ffd830c2

define _GNU_SOURCE at the top level makefile

This was being defined on demand in several places, but it's a little
cleaner to just do it at the top level and we'll need it in several
more places if we want to support O_DIRECT in the file benchmarks.

BUG=chrome-os-partner:30913
TEST=build punybench for link (x86) and veyron (armv7a)

Change-Id: Ifd9d7caa646edf3a39f140971acf72e74be6e950
Reviewed-on: https://chromium-review.googlesource.com/265474
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>