buildhistory_analysis: fix error when version specifier missing

Passing None to split_versions() will raise an exception, so check that
the version is specified before passing it in.

(From OE-Core rev: 90caa605bd24279e4a9204e279492754119a8a55)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/lib/oe/buildhistory_analysis.py b/meta/lib/oe/buildhistory_analysis.py
index 313416cf74..29dc4a9ecf 100644
--- a/meta/lib/oe/buildhistory_analysis.py
+++ b/meta/lib/oe/buildhistory_analysis.py
@@ -272,7 +272,7 @@ def compare_pkg_lists(astr, bstr):
         if k in depverb:
             dva = depvera[k]
             dvb = depverb[k]
-            if dva != dvb:
+            if dva and dvb and dva != dvb:
                 if bb.utils.vercmp(split_version(dva), split_version(dvb)) < 0:
                     remove.append(k)