These two assignments have no place here and will overwrite the
previous COMMON_LIBS="$COMMON_LIBS -lgmodule-2.0 -lgobject-2.0".
This can lead to build failure during linking stage depending on
the chosen configure options.
This is useful if distros support installing multiple python versions
in parallel such as: 2.5, 2.6, 2.7.
For python3.* we will get syntax error during the imports, so the checks
will successfully disable it.
It defaults to python2.
hasufell