sstate.bbclass: Reduce SSTATE_MANIFESTS assignment to be weak

Distributions can then override this variable if needed
useful e.g. when building uclibc/eglibc both using
same tmpdir

Signed-off-by: Khem Raj <raj.khem@gmail.com>

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index be650c4af4d7f0e69b97a77f8fb68c9eb6ac918f..553c6a2de1e9ac23c226ba6f595756b4b16c7fc4 100644 (file)
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -1,6 +1,6 @@
 SSTATE_VERSION = "2"
 
-SSTATE_MANIFESTS = "${TMPDIR}/sstate-control"
+SSTATE_MANIFESTS ?= "${TMPDIR}/sstate-control"
 SSTATE_MANFILEBASE = "${SSTATE_MANIFESTS}/manifest-${SSTATE_MANMACH}-"
 SSTATE_MANFILEPREFIX = "${SSTATE_MANFILEBASE}${PN}"