; Better clarify function types in C-h f (bug#73626)

* doc/emacs/help.texi (Name Help): Better clarify function types.

(cherry picked from commit b71d3b2f52ff186e2e7e9724890aa08d0fc9796b)

diff --git a/doc/emacs/help.texi b/doc/emacs/help.texi
index 38f8007107f607f3de1fb09500d809644334f51b..99767ded7f60b604d2913e7317b6b33daf5c37c8 100644 (file)
--- a/doc/emacs/help.texi
+++ b/doc/emacs/help.texi
@@ -307,6 +307,15 @@ file where it was defined, whether it has been declared obsolete, and
 yet further information is often reachable by clicking or typing
 @key{RET} on emphasized parts of the text.
 
+@cindex function type specifier
+
+The function type, if known, is expressed with a @dfn{function type
+specifier} (@pxref{Type Specifiers,,,elisp, The Emacs Lisp Reference
+Manual}), it will be specified if the type was manually declared by the
+programmer or inferred by the compiler.  Note that function type
+inference works only when native compilation is enabled (@pxref{native
+compilation,,, elisp, The Emacs Lisp Reference Manual}).
+
 @vindex help-enable-symbol-autoload
   If you request help for an autoloaded function whose @code{autoload}
 form (@pxref{Autoload,,, elisp, The Emacs Lisp Reference Manual})