try

borg.el

@@ -52,6 +52,12 @@
 (require 'pcase)
 (require 'subr-x)
 
+(message "--- %s"
+         (list (fboundp 'comp--native-compile)
+               (fboundp 'comp-ensure-native-compiler)
+               (fboundp 'native-compile-async)
+               (fboundp 'comp-el-to-eln-filename)))
+
 (unless (require 'loaddefs-gen nil t)
   (with-suppressed-warnings ((obsolete autoload))
     (require 'autoload)))