bitbake: build.py: Fix traceback when there are no dependencies

A recipe with no dependencies results in a traceback (e.g. all in
ASSUME_PROVIDED). This shouldn't happen and this patch fixes it.

(Bitbake rev: dee7decf87dfa8cb966fe40846d27f3e6ab1846b)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index 43790a658a..2f6a61f4b0 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -591,9 +591,10 @@ def add_tasks(tasklist, d):
         getTask('noexec')
         getTask('umask')
         task_deps['parents'][task] = []
-        for dep in flags['deps']:
-            dep = data.expand(dep, d)
-            task_deps['parents'][task].append(dep)
+        if 'deps' in flags:
+            for dep in flags['deps']:
+                dep = data.expand(dep, d)
+                task_deps['parents'][task].append(dep)
 
     # don't assume holding a reference
     data.setVar('_task_deps', task_deps, d)