[PATCH] bitbake.conf: Exclude sstate-outputdirs flag from checksums

[Richard Purdie <richard.purdie@linuxfoundation.org>]

This was making deploy tasks MACHINE specific since they place output
into DEPLOY_DIR_IMAGE which contains MACHINE. On the plus side, this
was accidentally ensuring the output was placed for each machine,
on the downside it was triggering a rebuild every time for the different
checksum.

There is a better way to handle this which avoids the rebuild, see
the following tweak to do_deploy to mark it as MACHINE specific
in a different way.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index aff2e89..08f34e0 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -800,7 +800,7 @@ BB_SIGNATURE_EXCLUDE_FLAGS ?= "doc deps depends \
     lockfiles type vardepsexclude vardeps vardepvalue vardepvalueexclude \
     file-checksums python func task export unexport noexec nostamp dirs cleandirs \
     sstate-lockfile-shared prefuncs postfuncs export_func deptask rdeptask \
-    recrdeptask nodeprrecs stamp-base stamp-extra-info"
+    recrdeptask nodeprrecs stamp-base stamp-extra-info sstate-outputdirs"
 
 MLPREFIX ??= ""
 MULTILIB_VARIANTS ??= ""