Rename 'build_bdist' to 'bdist_base', and get it by default from the
"bdist" command rather than "build".
diff --git a/Lib/distutils/command/clean.py b/Lib/distutils/command/clean.py
index 8706e57..d699906 100644
--- a/Lib/distutils/command/clean.py
+++ b/Lib/distutils/command/clean.py
@@ -20,7 +20,7 @@
          "build directory for all modules (default: 'build.build-lib')"),
         ('build-temp=', 't',
          "temporary build directory (default: 'build.build-temp')"),
-        ('build-bdist=', None,
+        ('bdist-base=', None,
          "temporary directory for built distributions"),
         ('all', 'a',
          "remove all build output, not just temporary by-products")
@@ -30,7 +30,7 @@
         self.build_base = None
         self.build_lib = None
         self.build_temp = None
-        self.build_bdist = None
+        self.bdist_base = None
         self.all = None
 
     def finalize_options(self):
@@ -44,8 +44,9 @@
         self.set_undefined_options('build',
                                    ('build_base', 'build_base'),
                                    ('build_lib', 'build_lib'),
-                                   ('build_temp', 'build_temp'),
-                                   ('build_bdist', 'build_bdist'))
+                                   ('build_temp', 'build_temp'))
+        self.set_undefined_options('bdist',
+                                   ('bdist_base', 'bdist_base'))
 
     def run(self):
         # remove the build/temp.<plat> directory (unless it's already
@@ -62,8 +63,8 @@
             # built distribution will have its own subdirectory under
             # "build/bdist", but they'll be taken care of by
             # 'remove_tree()'.
-            if os.path.exists (self.build_bdist):
-                remove_tree (self.build_bdist, self.verbose, self.dry_run)
+            if os.path.exists (self.bdist_base):
+                remove_tree (self.bdist_base, self.verbose, self.dry_run)
 
         # just for the heck of it, try to remove the base build directory:
         # we might have emptied it right now, but if not we don't care