Turn off warning 40 by default (ocaml#1333)

* Turn off warning 40 by default

Author: lpw25

Changes

@@ -239,6 +239,8 @@ Working version
 - MPR#7624: handle warning attributes placed on let bindings
   (Xavier Clerc, report by dinosaure, review by Alain Frisch)
 
+- GPR#1333: turn off warning 40 by default
+  (Leo White)
 
 ### Other libraries:
 

man/ocamlc.m

@@ -986,7 +986,7 @@ compilation in any way (even if it is fatal).  If a warning is enabled,
 
 .IP
 The default setting is
-.BR \-w\ +a\-4\-6\-7\-9\-27\-29\-32..39\-41\-42\-44\-45\-48\-50\-60 .
+.BR \-w\ +a\-4\-6\-7\-9\-27\-29\-32..42\-44\-45\-48\-50\-60 .
 Note that warnings
 .BR 5 \ and \ 10
 are not always triggered, depending on the internals of the type checker.

manual/manual/cmds/unified-options.etex

@@ -745,7 +745,7 @@ that are currently defined are ignored. The warnings are as follows.
 \input{warnings-help.tex}
 \end{options}
 
-The default setting is "-w +a-4-6-7-9-27-29-32..39-41..42-44-45-48-50".
+The default setting is "-w +a-4-6-7-9-27-29-32..42-44-45-48-50-60".
 It is displayed by {\machine\ocamlx\ -help}.
 Note that warnings 5 and 10 are not always triggered, depending on
 the internals of the type checker.

utils/warnings.ml

@@ -297,7 +297,7 @@ let parse_options errflag s =
   current := {error; active}
 
 (* If you change these, don't forget to change them in man/ocamlc.m *)
-let defaults_w = "+a-4-6-7-9-27-29-32..39-41..42-44-45-48-50-60";;
+let defaults_w = "+a-4-6-7-9-27-29-32..42-44-45-48-50-60";;
 let defaults_warn_error = "-a+31";;
 
 let () = parse_options false defaults_w;;