staging.bbclass: make subprocess.check_output() capture stderr

This is very useful for debugging. The similar to testsdk.bbclass.

(From OE-Core rev: de30b61b87047f61de4629f8e5bd87598de7fd0c)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/meta/classes/testsdk.bbclass b/meta/classes/testsdk.bbclass
index 6b51a33db2..9fe8c34fc2 100644
--- a/meta/classes/testsdk.bbclass
+++ b/meta/classes/testsdk.bbclass
@@ -159,7 +159,8 @@ def testsdkext_main(d):
             f.write('INHERIT += "own-mirrors"')
 
         # We need to do this in case we have a minimal SDK
-        subprocess.check_output(". %s > /dev/null; devtool sdk-install meta-extsdk-toolchain" % sdk_env, cwd=sdk_dir, shell=True)
+        subprocess.check_output(". %s > /dev/null; devtool sdk-install meta-extsdk-toolchain" % \
+                sdk_env, cwd=sdk_dir, shell=True, stderr=subprocess.STDOUT)
 
         tc = OESDKExtTestContext(td=test_data, logger=logger, sdk_dir=sdk_dir,
             sdk_env=sdk_env, target_pkg_manifest=target_pkg_manifest,