distutils for the library modules built as shared objects. A better solution
appears possible, but with the threat that the distutils becomes more
magical ("complex").
This closes SF bug #458343.
Lib/distutils/command/build_ext.py(build_ext.finalize_options): Add
Cygwin specific code to append Python's library directory to the
extension's list of library directories.
(build_ext.get_libraries): Add Cygwin specific code to append Python's
(import) library to the extension's list of libraries.
Removed get_ext_libname() because it is unused.
Fixed get_libraries() to append an '_d' to the python debug
import library. If MSVC is used, do not add 'pythonxx.lib' to
the list of libraries, because this is handled better
by a pragma in config.h.
This should fix bug #115595, but it needs some more testing.
- '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
