gh-110109: Fix installed buildbots now pathlib is a package (#112901)

AlexWaygood · web-flow · commit c1652d6d6201 · 2023-12-09T18:05:33.000Z
diff --git a/Makefile.pre.in b/Makefile.pre.in
@@ -2164,6 +2164,7 @@ LIBSUBDIRS=	asyncio \
 		json \
 		logging \
 		multiprocessing multiprocessing/dummy \
+		pathlib \
 		pydoc_data \
 		re \
 		site-packages \
