Changed so all the help-generating functions are defined, at module-level,
in the module of the command classes that have command-specific
help options.  This lets us keep the principle of lazily importing
the ccompiler module, and also gets away from defining non-methods
at class level.
diff --git a/Lib/distutils/command/build.py b/Lib/distutils/command/build.py
index d5513fc..1e87f23 100644
--- a/Lib/distutils/command/build.py
+++ b/Lib/distutils/command/build.py
@@ -9,7 +9,12 @@
 import sys, os
 from distutils.core import Command
 from distutils.util import get_platform
-from distutils.ccompiler import show_compilers
+
+
+def show_compilers ():
+    from distutils.ccompiler import show_compilers
+    show_compilers()
+
 
 class build (Command):