Create only unversioned library when building kcontrol module or kio module

Thanks to Francois Andriot for the patch!
(cherry picked from commit 76be949631)

src/kdedistutils.py

@@ -790,6 +790,8 @@ class BuildKControlModule(Command):
             cmdlist.append(sysconfig.get_config_var("LDSHARED").split()[0])
             # link_flags
             cmdlist.append("-module")
+            cmdlist.append("-avoid-version")
+            cmdlist.append("-shared")
             cmdlist.append("-export-dynamic")
             # object
             cmdlist.append(outputfile)
@@ -1703,6 +1705,8 @@ class BuildKioslave(Command):
             cmdlist.append(sysconfig.get_config_var("LDSHARED").split()[0])
             # link_flags
             cmdlist.append("-module")
+            cmdlist.append("-avoid-version")
+            cmdlist.append("-shared")
             cmdlist.append("-export-dynamic")
             # object
             cmdlist.append(outputfile)