1 files changed, 5 insertions, 4 deletions

diff --git a/meta/lib/oe/classextend.py b/meta/lib/oe/classextend.py
index 61cbb8fdf3..c37a8963c5 100644
--- a/meta/lib/oe/classextend.py
+++ b/meta/lib/oe/classextend.py
@@ -63,11 +63,12 @@ class ClassExtender(object):
         deps = self.d.getVar(varname, True)
         if not deps:
             return
-        deps = bb.utils.explode_deps(deps)
-        newdeps = []
+        deps = bb.utils.explode_dep_versions2(deps)
+        newdeps = {}
         for dep in deps:
-            newdeps.append(self.map_depends(dep))
-        self.d.setVar(varname, " ".join(newdeps))
+            newdeps[self.map_depends(dep)] = deps[dep]
+
+        self.d.setVar(varname, bb.utils.join_deps(newdeps, False))
 
     def map_packagevars(self):
         for pkg in (self.d.getVar("PACKAGES", True).split() + [""]):