Make `make-local-variable' declare the var locally dynamic

The only effect of this change is to get rid of some unnecessary
"assignment to free variable" warnings.

* lisp/emacs-lisp/bytecomp.el (byte-compile-make-local-variable): New
function.

1 files changed, 8 insertions, 0 deletions

diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
index 13b72196565..72dbfd74b11 100644
--- a/lisp/emacs-lisp/bytecomp.el
+++ b/lisp/emacs-lisp/bytecomp.el
@@ -4752,6 +4752,14 @@ binding slots have been popped."
 (defun byte-compile-form-make-variable-buffer-local (form)
   (byte-compile-keep-pending form 'byte-compile-normal-call))
 
+;; Make `make-local-variable' declare the variable locally
+;; dynamic - this suppresses some unnecessary warnings
+(byte-defop-compiler-1 make-local-variable
+                       byte-compile-make-local-variable)
+(defun byte-compile-make-local-variable (form)
+  (pcase form (`(,_ ',var) (byte-compile--declare-var var)))
+  (byte-compile-normal-call form))
+
 (put 'function-put 'byte-hunk-handler 'byte-compile-define-symbol-prop)
 (put 'define-symbol-prop 'byte-hunk-handler 'byte-compile-define-symbol-prop)
 (defun byte-compile-define-symbol-prop (form)