[OE-core] [PATCH 1/1] sstate.bbclass: make SSTATE_PRUNE_OBSOLETEWORKDIR could be overwritten

[kai.kang at windriver.com]

From: Kai Kang <kai.kang at windriver.com>

Define variable SSTATE_PRUNE_OBSOLETEWORKDIR with '?=' in sstate.bbclass,
then it could be overwritten by user configuration.

Signed-off-by: Kai Kang <kai.kang at windriver.com>
---
 meta/classes/sstate.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 084d631523..ecf08fb2d0 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -1040,7 +1040,7 @@ python sstate_eventhandler() {
         bb.siggen.dump_this_task(sstatepkg + '_' + taskname + ".tgz" ".siginfo", d)
 }
 
-SSTATE_PRUNE_OBSOLETEWORKDIR = "1"
+SSTATE_PRUNE_OBSOLETEWORKDIR ?= "1"
 
 # Event handler which removes manifests and stamps file for
 # recipes which are no longer reachable in a build where they
-- 
2.18.0