boot-9: add comment about autoload thread-unsafety.

* module/ice-9/boot-9.scm: Add comment about lack of thread-safety in
  handling of autoloads.

diff --git a/module/ice-9/boot-9.scm b/module/ice-9/boot-9.scm
index 19c22ea..dbef75f 100644 (file)
--- a/module/ice-9/boot-9.scm
+++ b/module/ice-9/boot-9.scm
@@ -2961,6 +2961,9 @@ module '(ice-9 q) '(make-q q-length))}."
 ;;; {Autoloading modules}
 ;;;
 
+;;; XXX FIXME autoloads-in-progress and autoloads-done
+;;;           are not handled in a thread-safe way.
+
 (define autoloads-in-progress '())
 
 ;; This function is called from scm_load_scheme_module in