license.bbclass: implement ast.NodeVisitor.visit_Constant

Since Python 3.8 visit_Num(), visit_Str() and so on are all deprecated
and replaced with visit_Constant.  We can't yet remove the deprecated
functions until we require 3.8, but we can implement visit_Constant to
silence the deprecation warnings.

(From OE-Core rev: 875a944392a3c93f40081a14af357f70b6b8264f)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index 45d912741d..7a34e185c7 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -145,6 +145,10 @@ def find_license_files(d):
             find_license(node.s.replace("+", "").replace("*", ""))
             self.generic_visit(node)
 
+        def visit_Constant(self, node):
+            find_license(node.value.replace("+", "").replace("*", ""))
+            self.generic_visit(node)
+
     def find_license(license_type):
         try:
             bb.utils.mkdirhier(gen_lic_dest)