Fix compilation error caused by ACX_THREAD

diff --git a/catta b/catta
index fd0cf0fc04eb828dbed5b374b2cffd9725ff4d2e..bb142eb202fda78982305d8aeffc4ae5c16ab1ae 160000 (submodule)
--- a/catta
+++ b/catta
@@ -1 +1 @@
-Subproject commit fd0cf0fc04eb828dbed5b374b2cffd9725ff4d2e
+Subproject commit bb142eb202fda78982305d8aeffc4ae5c16ab1ae