[OE-core] [PATCH] sstate: Ensure SSTATEPOSTINSTFUNCS is accounted for in signatures

[Richard Purdie]

Bitbake can't interpret the python execution of these functions so
include the dependency manually.

[YOCTO #4507]

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index a45fe1e..9e09a73 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -216,6 +216,7 @@ def sstate_install(ss, d):
         bb.utils.unlockfile(lock)
 
 sstate_install[vardepsexclude] = "SSTATE_DUPWHITELIST STATE_MANMACH SSTATE_MANFILEPREFIX"
+sstate_install[vardeps] += "${SSTATEPOSTINSTFUNCS}"
 
 def sstate_installpkg(ss, d):
     import oe.path