Update builder to work better on MacOS

diff --git a/builder b/builder
index c66dee9bfa5a676ebd8543c7c111a93242043db6..2fb9f4b5c2ef8b00cb2de33ccd1264b9ec39992a 160000 (submodule)
--- a/builder
+++ b/builder
@@ -1 +1 @@
-Subproject commit c66dee9bfa5a676ebd8543c7c111a93242043db6
+Subproject commit 2fb9f4b5c2ef8b00cb2de33ccd1264b9ec39992a