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-rw-r--r--lib/bb/siggen.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 092732142..e77be6abf 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -192,7 +192,8 @@ class SignatureGeneratorBasic(SignatureGenerator):
checksums = bb.fetch2.get_file_checksums(dataCache.file_checksums[fn][task], recipename)
for (f,cs) in checksums:
self.file_checksum_values[k][f] = cs
- data = data + cs
+ if cs:
+ data = data + cs
taint = self.read_taint(fn, task, dataCache.stamp[fn])
if taint: