Remove last traces of cStringIO.
diff --git a/PC/os2vacpp/makefile b/PC/os2vacpp/makefile
index 55bb783..d47ff1f 100644
--- a/PC/os2vacpp/makefile
+++ b/PC/os2vacpp/makefile
@@ -180,7 +180,6 @@
                   $(PATHOBJ)\ArrayModule.obj   \
                   $(PATHOBJ)\BinAscii.obj      \
                   $(PATHOBJ)\CMathModule.obj   \
-                  $(PATHOBJ)\cStringIO.obj     \
                   $(PATHOBJ)\ErrnoModule.obj   \
                   $(PATHOBJ)\GCModule.obj      \
                   $(PATHOBJ)\GetBuildInfo.obj  \
@@ -440,7 +439,7 @@
 
 cpickle.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h $(PY_INCLUDE)\classobject.h \
 	 $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h pyconfig.h \
-	 $(PY_INCLUDE)\cstringio.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
+	 $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
 	 $(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
 	 $(PY_INCLUDE)\intobject.h $(PY_INCLUDE)\intrcheck.h $(PY_INCLUDE)\listobject.h \
 	 $(PY_INCLUDE)\longobject.h $(PY_INCLUDE)\methodobject.h \
@@ -466,20 +465,6 @@
 	 $(PY_INCLUDE)\stringobject.h $(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h \
 	 $(PY_INCLUDE)\tupleobject.h
 
-cstringio.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h $(PY_INCLUDE)\classobject.h \
-	 $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h pyconfig.h \
-	 $(PY_INCLUDE)\cstringio.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
-	 $(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
-	 $(PY_INCLUDE)\intobject.h $(PY_INCLUDE)\intrcheck.h $(PY_INCLUDE)\listobject.h \
-	 $(PY_INCLUDE)\longobject.h $(PY_INCLUDE)\methodobject.h \
-	 $(PY_INCLUDE)\modsupport.h $(PY_INCLUDE)\moduleobject.h $(PY_INCLUDE)\mymalloc.h \
-	 $(PY_INCLUDE)\myproto.h $(PY_INCLUDE)\object.h $(PY_INCLUDE)\objimpl.h \
-	 $(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\pyerrors.h $(PY_INCLUDE)\pyfpe.h \
-	 $(PY_INCLUDE)\pystate.h $(PY_INCLUDE)\python.h $(PY_INCLUDE)\pythonrun.h \
-	 $(PY_INCLUDE)\rangeobject.h $(PY_INCLUDE)\sliceobject.h \
-	 $(PY_INCLUDE)\stringobject.h $(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h \
-	 $(PY_INCLUDE)\tupleobject.h
-
 cursesmodule.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
 	 $(PY_INCLUDE)\classobject.h $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h \
 	 pyconfig.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \