Allow builds with older version of URCU

Debian Wheezy, which has urcu-0.6 doesn't ship the pkg-config files for
urcu. So when I was checking support, I didn't bother testing Wheezy or
urcu-0.6 as I didn't want to spend time trying to build without
pkg-config support.

But it turns out that urcu-0.6 supports the APIs being used by GlusterD.
This patch improves the configure script to manually search and set URCU
build flags if pkg-config search fails.

Change-Id: I8c2ae748b58e94d89aef61da6fb3c660710a5f3b
BUG: 1304348
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/13345
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>

0 files changed, 0 insertions, 0 deletions