[OE-core] [PATCH 6/8] liburcu_0.5.4.bb: Let it build on uclibc targets

[Khem Raj]

uclibc requires -D_GNU_SOURCE to be defined for it
to enable GNU extensions which CPU_SET/CPU_ZERO are
used by this package. So we add -D_GNU_SOURCE to
CFLAGS when compiling for uclibc.

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta/recipes-support/liburcu/liburcu_0.5.4.bb |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/meta/recipes-support/liburcu/liburcu_0.5.4.bb b/meta/recipes-support/liburcu/liburcu_0.5.4.bb
index 8e17e5d..b83d708 100644
--- a/meta/recipes-support/liburcu/liburcu_0.5.4.bb
+++ b/meta/recipes-support/liburcu/liburcu_0.5.4.bb
@@ -15,7 +15,7 @@ SRC_URI[md5sum] = "04147d24749be75200173859839207f7"
 SRC_URI[sha256sum] = "02aedbb16c16bd034e246d5c9637a9232be559c66fc2fe4eb28948e234bd89f1"
 
 S = "${WORKDIR}/userspace-rcu-${PV}"
-
+CFLAGS_append_libc-uclibc = " -D_GNU_SOURCE"
 inherit autotools
 
 # liburcu, which is only used by lttng-ust, may not build on other
-- 
1.7.4.1