2 files changed, 23 insertions, 7 deletions

diff --git a/scripts/lib/devtool/__init__.py b/scripts/lib/devtool/__init__.py
index 253e4d5e35..0405d22874 100644
--- a/scripts/lib/devtool/__init__.py
+++ b/scripts/lib/devtool/__init__.py
@@ -146,19 +146,35 @@ def parse_recipe(config, tinfoil, pn, appends):
     return oe.recipeutils.parse_recipe(recipefile, append_files,
                                        tinfoil.config_data)
 
-def check_workspace_recipe(workspace, pn, checksrc=True):
+def check_workspace_recipe(workspace, pn, checksrc=True, bbclassextend=False):
     """
     Check that a recipe is in the workspace and (optionally) that source
     is present.
     """
-    if not pn in workspace:
+
+    workspacepn = pn
+
+    for recipe, value in workspace.iteritems():
+        if recipe == pn:
+            break
+        if bbclassextend:
+            recipefile = value['recipefile']
+            if recipefile:
+                targets = get_bbclassextend_targets(recipefile, recipe)
+                if pn in targets:
+                    workspacepn = recipe
+                    break
+    else:
         raise DevtoolError("No recipe named '%s' in your workspace" % pn)
+
     if checksrc:
-        srctree = workspace[pn]['srctree']
+        srctree = workspace[workspacepn]['srctree']
         if not os.path.exists(srctree):
-            raise DevtoolError("Source tree %s for recipe %s does not exist" % (srctree, pn))
+            raise DevtoolError("Source tree %s for recipe %s does not exist" % (srctree, workspacepn))
         if not os.listdir(srctree):
-            raise DevtoolError("Source tree %s for recipe %s is empty" % (srctree, pn))
+            raise DevtoolError("Source tree %s for recipe %s is empty" % (srctree, workspacepn))
+
+    return workspacepn
 
 def use_external_build(same_dir, no_same_dir, d):
     """
diff --git a/scripts/lib/devtool/build.py b/scripts/lib/devtool/build.py
index a9a077882c..c4c0c9f50f 100644
--- a/scripts/lib/devtool/build.py
+++ b/scripts/lib/devtool/build.py
@@ -51,11 +51,11 @@ def _get_build_task(config):
 
 def build(args, config, basepath, workspace):
     """Entry point for the devtool 'build' subcommand"""
-    check_workspace_recipe(workspace, args.recipename)
+    workspacepn = check_workspace_recipe(workspace, args.recipename, bbclassextend=True)
 
     build_task = _get_build_task(config)
 
-    bbappend = workspace[args.recipename]['bbappend']
+    bbappend = workspace[workspacepn]['bbappend']
     if args.disable_parallel_make:
         logger.info("Disabling 'make' parallelism")
         _set_file_values(bbappend, {'PARALLEL_MAKE': ''})