Disable lexsubs outside of feature.pm

1 files changed, 8 insertions, 0 deletions

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index fd09b6596e..e579b11f54 100644
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -1860,6 +1860,14 @@ as a goto, or a loop control statement.
 (W exiting) You are exiting a substitution by unconventional means, such
 as a return, a goto, or a loop control statement.
 
+=item Experimental "%s" subs not enabled
+
+(F) To use lexical subs, you must first enable them:
+
+    no warnings 'experimental:lexical_subs';
+    use feature 'lexical_subs';
+    my sub foo { ... }
+
 =item Explicit blessing to '' (assuming package main)
 
 (W misc) You are blessing a reference to a zero length string.  This has