Add so version number to private libraries for dpkg-shlibdeps

We also want dpkg-shlibdeps to generate correct dependency information
for the private libraries in our binary packages, but dpkg-shlibdeps
only works when the library has a version number.

Origin: vendor
Forwarded: not-needed

Gbp-Pq: Name add-so-version-to-private-libraries

buildtools/wafsamba/wafsamba.py

@@ -223,6 +223,9 @@ def SAMBA_LIBRARY(bld, libname, source,
             raise Errors.WafError("public library '%s' must have header files" %
                        libname)
 
+    if private_library and not vnum:
+        vnum = '0'
+
     if bundled_name is not None:
         pass
     elif target_type == 'PYTHON' or realname or not private_library: