Replace DL_IMPORT with PyMODINIT_FUNC and remove "/export:init..." link
command line for Windows builds.  This should allow MSVC to import and
build the Python MSVC6 project files without error.
diff --git a/Modules/bsddbmodule.c b/Modules/bsddbmodule.c
index afb2390..918a0fc 100644
--- a/Modules/bsddbmodule.c
+++ b/Modules/bsddbmodule.c
@@ -841,7 +841,7 @@
 	{0,		0},
 };
 
-DL_EXPORT(void)
+PyMODINIT_FUNC
 initbsddb(void) {
 	PyObject *m, *d;