(allows the same FancyGetopt object to be used multiple times with different
option tables).

  wasn't actually used anywhere.
Drop the "from xxx_util import*" backwards compability hacks.

MSVCCompiler's version, to aid in factoring common code out of the two
classes when the time comes).

the --help-formats output.  Also moved that list up so it's more obvious
when adding formats.

the one in cmd.py).

consistency.

  - added big comment describing possible problems
  - look for and react to versions of gcc, ld, and dlltool; mainly
    this is done by the 'get_versions()' function and the CygwinCCompiler
    and Mingw32CCompiler constructors
  - move 'check_config_h()' to end of file and defer calling it until
    we need to (ie. in the CygwinCCompiler constructor)
  - lots of changes in 'link_shared_object()' -- mostly seems to be
    library and DLL stuff, but I don't follow it entirely

in '_init_nt()' (they were kludges for CygwinCCompiler and no longer needed).

it so BCPPCompiler actually works, so I'm provisionally accepting it
-- ugly and working is better than not working!  Major changes:
  - normalize paths (apparently BC++ doesn't like slashes)
  - overhauled how we search for and specify libraries on the linker
    command-line
  - hacked up 'find_library_file()' so it knows about "debug" library
    naming convention as well as "bcpp_xxx.lib" -- the question is,
    is this a well-established and sensible convention?
Also:
  - change to use 'util.write_file()' to write the .def file

'export_symbols' can be None (not sure this is a good idea: it's inconsistent
  with every other instance attribute of Extension).

the linker leaves the (temporary) .lib file in the temporary dir.  (Moved
from 'msvc_prelink_hack()' method in build_ext.py.)

  - 'export_symbol_file' (and corresponding 'def_file' in the old
    "build info" dict) are gone; warn if we see 'def_file' in the
    dict
  - the MSVC "pre-link hack" is gone -- all that stuff is now handled
    elsewhere (eg. by using 'export_symbols', etc.)
  - add 'get_export_symbols()' and 'get_libraries()' methods -- needed
    because on Windows, both of those things are a tad more complicated
    than fetching them from the Extension instance

  mere warnings.
Call 'findall()' on our FileList object before we start using it seriously.

Added 'remove_duplicates()'.
Simplified constructor: no longer take 'files' or 'allfiles' as args,
  and no longer have 'dir' attribute at all.
Added 'set_allfiles()' and 'findall()' so the client does have a
  way to set the list of all files.
Changed 'include_pattern()' to use the 'findall()' method instead of
  the external function.  (Of course, the method is just a trivial
  wrapper around the function.)

instance instead of a list of filenames.  Simplifies the "sdist" command
only a bit, but should allow greater simplification of FileList.

which I renamed to FileList: remove all the file-list-generation code from
the sdist command and adapt it to use the new FileList class instead.

Other cosmetic/doc/comment tweaks.

'_parse_template_line()'.

Indentation/whitspace fixes.

the filesystem, and filtering the list by applying various patterns.

Initial revision (almost) as supplied in a patch by Rene Liebscher; I
just renamed the class from Template to FileList, and the module
accordingly.

Comment tweak.

'shared_library_filename()'.