Recursively make subdirectories as specified by dirname.

(This is to support interactive instance creation).

Don't put zconfig script into bindir.

Add a --no-compile option to prevent bytecode compilation (for binary packagers who don't want to ship compiled bytecode).

associated database version pool.

       instead of clearing them.

Collector 952 (--with-python that has no trailing arg causes it to be passed to Python configurator, which raises an inscrutable error).

new comment block explains the cause and the cure.

        which is aware of extension classes that fill 'tp_callable'
        but don't define '__call__'.

      - Made KeywordIndex be more robust about receiving a value that
        is not a string or an iterable type.