Removed some variables that are used to exchange data between import.c and

importdl.c: the MAXSUFFIXSIZE macro is now defined in importdl.h, and
the modules dictionary is now passed using PyImport_GetModuleDict().

Also undefine USE_SHLIB for AIX -- in AIX 4.2 and up, dlfcn.h exists
but we don't want to use it.

Python/importdl.h

@@ -42,9 +42,8 @@ extern struct filedescr {
 	enum filetype type;
 } _PyImport_Filetab[];
 
-extern PyObject *_PyImport_Modules;
-
 extern PyObject *_PyImport_LoadDynamicModule
 	Py_PROTO((char *name, char *pathname, FILE *));
 
-extern int _PyImport_MaxSuffixSize;
+/* Max length of module suffix searched for -- accommodates "module.slb" */
+#define MAXSUFFIXSIZE 12