'-g' flag to compiler/linker command lines when it's true.

Doc fix: several paragraphs under 'link_static_lib()' moved to
  'link_shared_lib()', where they belong.

_init_nt():  Use get_config_h_filename() instead of figuring out the
             name directly.

             g['SO'] should be set to '.pyd'.

             Adjust some minor coding nits.

harder to find the MSVC compiler (mainly by using the registry).

Typo fix.

in the current distribution: motivated by PIL's libImaging.

Announce when we start building each extension (better feedback).

feedback and, theoretically, the opportunity to set compiler flags
on a per-file basis.

Always use normalized (with os.path.normpath()) versions of prefix and
  exec_prefix.

  '--help-commands' option).
Shuffled imports around in a few command modules to avoid expensive
  up-front import of sysconfig (and resulting delays in generating list
  of all commands).

  * "--help" can now come either before or after particular commands
    to get help on and can give help on multiple commands, eg.
    "--help install dist" gives help on those two commands
  * added "--help-commands" option, implemented by the 'print_commands()'
    and 'print_command_list()' methods

Tweaked error messages in '_spawn_posix()'.

RT library.

Fixed 'make_release_tree()' to copy files if 'os.link()' doesn't exist.

command wasn't found or failed.  (Code supplied by Thomas Heller
<thomas.heller@ion-tof.com>.)

before storing or using.

the 'missing' parameter.

Added 'link_static_lib()' method, and 'archiver' and 'archiver_options'
  class attributes to support it.
Added 'link_executable()' method, and 'ld_exec' instance attribute
  to support it.
'newer_group()' is now able to handle missing files, so we don't have
  to kludge it by catching OSError when calling it.
'object_filenames()' and 'shared_object_filename()' now take 'keep_dir'
  flag parameters.
'library_filename()' and 'shared_library_filename()' now respect
  a directory component in the library name.
Various comment updates/deletions.

Added 'link_executable()' signature.

Added 'nuke_release_tree()' method to blow away the directory from
  which the archive file(s) are created, and call it (conditionally)
  from 'make_distribution()'.
Added 'keep_tree' option (false by default) to disable the call to
  'nuke_release_tree()'.

  install) the setup script itself.
Fixed 'build_module()' so we do *not* preserve file mode (which means
  we can install read-only files, which makes the next installation
  of this distribution fail -- at least under Unix); added a comment
  explaining this.

  call CCompiler method 'compile()' with 'include_dirs' not 'includes'.
Fixed stupid typo in 'get_source_files()'.

  consistency with 'build_ext' command option.
Changed 'compile()' and 'link_shared_object()' so 'include_dirs',
  'libraries', and 'library_dirs' can be lists or tuples.