This bug was fixed in the package btrfs-tools - 0.19+20100601-3ubuntu3
--------------- btrfs-tools (0.19+20100601-3ubuntu3) oneiric; urgency=low
* Fix -Wunused-but-set-variable warnings from GCC 4.6 (LP: #829428). -- Colin Watson <email address hidden> Thu, 25 Aug 2011 12:04:08 +0100
This bug was fixed in the package btrfs-tools - 0.19+20100601- 3ubuntu3
--------------- 3ubuntu3) oneiric; urgency=low
btrfs-tools (0.19+20100601-
* Fix -Wunused- but-set- variable warnings from GCC 4.6 (LP: #829428).
-- Colin Watson <email address hidden> Thu, 25 Aug 2011 12:04:08 +0100