Setup.in: added tkinter; rearranged the definition of PYTHONPATH so
that the module-specific components are in the section for that
module.

cursesmodule.c: patched it so it actually works.

tkintermodule.c: call Py_AtExit instead of atexit().

signalmodule.c: converted to new naming style; added
BGN/END SAVE around pause() call.

socketmodule.c: added setblocking() after Tommy Burnette.
diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
index e485936..9f0bec9 100644
--- a/Modules/_cursesmodule.c
+++ b/Modules/_cursesmodule.c
@@ -1033,6 +1033,8 @@
 
 /* -------------------------------------------------------*/
 
+static PyObject *ModDict;
+
 static PyObject * 
 PyCurses_InitScr(self, args)
      PyObject * self;
@@ -1052,7 +1054,7 @@
 
 /* This was moved from initcurses() because core dumped on SGI */
 #define SetDictChar(string,ch) \
-	PyDict_SetItemString(d,string,PyInt_FromLong(ch));
+	PyDict_SetItemString(ModDict,string,PyInt_FromLong(ch));
  
 	/* Here are some graphic symbols you can use */
         SetDictChar("ACS_ULCORNER",(ACS_ULCORNER));
@@ -1387,6 +1389,7 @@
 	Py_INCREF(PyCurses_ERR);
 	/* Add some symbolic constants to the module */
 	d = PyModule_GetDict(m);
+	ModDict = d; /* For PyCurses_InitScr */
 
 	/* Make the version available */
 	PyDict_SetItemString(d,"version",