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-rw-r--r--bitbake/lib/bb/siggen.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/bitbake/lib/bb/siggen.py b/bitbake/lib/bb/siggen.py
index 6a903b2fa5..74e8d332fa 100644
--- a/bitbake/lib/bb/siggen.py
+++ b/bitbake/lib/bb/siggen.py
@@ -550,7 +550,8 @@ def calc_taskhash(sigdata):
data = data + sigdata['runtaskhashes'][dep]
for c in sigdata['file_checksum_values']:
- data = data + c[1]
+ if c[1]:
+ data = data + c[1]
if 'taint' in sigdata:
if 'nostamp:' in sigdata['taint']: