bitbake: Add in code to support the BBCLASSEXTEND variable. Virtual native/sdk recipes then become possible

bitbake-dev/bin/bitdoc

@@ -453,6 +453,8 @@ def main():
     except bb.parse.ParseError:
         bb.fatal( "Unable to parse %s" % config_file )
 
+    if isinstance(documentation, dict):
+        documentation = documentation[""]
 
     # Assuming we've the file loaded now, we will initialize the 'tree'
     doc = Documentation()

bitbake-dev/lib/bb/cooker.py

@@ -628,13 +628,10 @@ class BBCooker:
         fn = self.matchFile(buildfile)
         self.buildSetVars()
 
-        # Load data into the cache for fn
+        # Load data into the cache for fn and parse the loaded cache data
         self.bb_cache = bb.cache.init(self)
-        self.bb_cache.loadData(fn, self.configuration.data)      
-
-        # Parse the loaded cache data
         self.status = bb.cache.CacheData()
-        self.bb_cache.handle_data(fn, self.status)  
+        self.bb_cache.loadData(fn, self.configuration.data, self.status)      
 
         # Tweak some variables
         item = self.bb_cache.getVar('PN', fn, True)