diff --git a/poky/bitbake/lib/bb/checksum.py b/poky/bitbake/lib/bb/checksum.py
index fb8a77f..557793d 100644
--- a/poky/bitbake/lib/bb/checksum.py
+++ b/poky/bitbake/lib/bb/checksum.py
@@ -11,10 +11,13 @@
 import stat
 import bb.utils
 import logging
+import re
 from bb.cache import MultiProcessCache
 
 logger = logging.getLogger("BitBake.Cache")
 
+filelist_regex = re.compile(r'(?:(?<=:True)|(?<=:False))\s+')
+
 # mtime cache (non-persistent)
 # based upon the assumption that files do not change during bitbake run
 class FileMtimeCache(object):
@@ -109,7 +112,12 @@
             return dirchecksums
 
         checksums = []
-        for pth in filelist.split():
+        for pth in filelist_regex.split(filelist):
+            if not pth:
+                continue
+            pth = pth.strip()
+            if not pth:
+                continue
             exist = pth.split(":")[1]
             if exist == "False":
                 continue