[OE-core] [PATCH 1/1] libpthread-stubs: add ALLOW_EMPTY_${PN} = "1"

[Hongxu Jia]

There was an image build failure while installing libpthread-stubs to rootfs.
...
Failed to buld rootfs image for fsl-b4xxx-standard-glibc-std after adding
multilib package lib64-libpthread-stubs.
...

The libpthread-stubs was empty and the package didn't exist by default. Add
ALLOW_EMPTY_${PN} = "1" to create the empty libpthread-stubs fixed this issue.

Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
---
 meta/recipes-graphics/xcb/libpthread-stubs_0.3.bb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/recipes-graphics/xcb/libpthread-stubs_0.3.bb b/meta/recipes-graphics/xcb/libpthread-stubs_0.3.bb
index ad046d1..f4264b4 100644
--- a/meta/recipes-graphics/xcb/libpthread-stubs_0.3.bb
+++ b/meta/recipes-graphics/xcb/libpthread-stubs_0.3.bb
@@ -22,3 +22,4 @@ RDEPENDS_${PN}-dev = ""
 RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"
 
 BBCLASSEXTEND = "native nativesdk"
+ALLOW_EMPTY_${PN} = "1"
-- 
1.8.1.2