Fix so the 'install_libbase' directory -- where .pth files are installed --

participates in the "--root" hack, ie. it also has a new root directory
hacked on at the very last minute (essential if the .pth file is to be
included in an RPM or other smart installer!).

Lib/distutils/command/install.py

@@ -273,7 +273,7 @@ class install (Command):
         # If a new root directory was supplied, make all the installation
         # dirs relative to it.
         if self.root is not None:
-            for name in ('lib', 'purelib', 'platlib',
+            for name in ('libbase', 'lib', 'purelib', 'platlib',
                          'scripts', 'data', 'headers'):
                 attr = "install_" + name
                 new_val = change_root (self.root, getattr (self, attr))