Fix C-M-x in lexbind mode. Misc tweaks.

* lisp/startup.el: Convert to lexical-binding.  Mark unused arguments.
(command-line-1): Get rid of the "cl1-" prefix now that we use lexical
scoping instead.
* lisp/emacs-lisp/float-sup.el (pi): Leave it lexically scoped.
* lisp/emacs-lisp/lisp-mode.el (eval-sexp-add-defvars): New fun.
(eval-last-sexp-1): Use eval-sexp-add-defvars.
* lisp/emacs-lisp/edebug.el (edebug-eval-defun): Use eval-sexp-add-defvars.
* lisp/emacs-lisp/cconv.el (cconv--analyse-function):
Fix `report-error/log-warning' mixup.

1 files changed, 7 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/float-sup.el b/lisp/emacs-lisp/float-sup.el
index ceb1eb3bafb..7e40fdad352 100644
--- a/lisp/emacs-lisp/float-sup.el
+++ b/lisp/emacs-lisp/float-sup.el
@@ -28,7 +28,13 @@
 ;; Provide an easy hook to tell if we are running with floats or not.
 ;; Define pi and e via math-lib calls (much less prone to killer typos).
 (defconst float-pi (* 4 (atan 1)) "The value of Pi (3.1415926...).")
-(defconst pi float-pi "Obsolete since Emacs-23.3.  Use `float-pi' instead.")
+(progn
+  ;; Simulate a defconst that doesn't declare the variable dynamically bound.
+  (setq-default pi float-pi)
+  (put 'pi 'variable-documentation
+       "Obsolete since Emacs-23.3.  Use `float-pi' instead.")
+  (put 'pi 'risky-local-variable t)
+  (push 'pi current-load-list))
 
 (defconst float-e (exp 1) "The value of e (2.7182818...).")