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-rw-r--r--lib/bb/siggen.py8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 550280339..a9c84c474 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -82,6 +82,10 @@ class SignatureGeneratorBasic(SignatureGenerator):
data = d.getVar(task, False)
lookupcache[task] = data
+ if data is None:
+ bb.error("Task %s from %s seems to be empty?!" % (task, fn))
+ data = ''
+
newdeps = gendeps[task]
seen = set()
while newdeps:
@@ -103,9 +107,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
var = d.getVar(dep, False)
lookupcache[dep] = var
if var:
- data = data + var
- if data is None:
- bb.error("Task %s from %s seems to be empty?!" % (task, fn))
+ data = data + str(var)
self.basehash[fn + "." + task] = hashlib.md5(data).hexdigest()
taskdeps[task] = sorted(alldeps)