diff options
Diffstat (limited to 'lisp/emacs-lisp/bytecomp.el')
| -rw-r--r-- | lisp/emacs-lisp/bytecomp.el | 72 |
1 files changed, 37 insertions, 35 deletions
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el index 9aa230cfe9b..80e380f07ea 100644 --- a/lisp/emacs-lisp/bytecomp.el +++ b/lisp/emacs-lisp/bytecomp.el @@ -1,6 +1,6 @@ ;;; bytecomp.el --- compilation of Lisp code into byte code -*- lexical-binding: t -*- -;; Copyright (C) 1985-1987, 1992, 1994, 1998, 2000-2011 +;; Copyright (C) 1985-1987, 1992, 1994, 1998, 2000-2012 ;; Free Software Foundation, Inc. ;; Author: Jamie Zawinski <jwz@lucid.com> @@ -1745,7 +1745,9 @@ The value is non-nil if there were no errors, nil if errors." (enable-local-eval nil)) ;; Arg of t means don't alter enable-local-variables. (normal-mode t) - (setq filename buffer-file-name)) + ;; There may be a file local variable setting (bug#10419). + (setq buffer-read-only nil + filename buffer-file-name)) ;; Set the default directory, in case an eval-when-compile uses it. (setq default-directory (file-name-directory filename))) ;; Check if the file's local variables explicitly specify not to @@ -1779,37 +1781,37 @@ The value is non-nil if there were no errors, nil if errors." (with-current-buffer output-buffer (goto-char (point-max)) (insert "\n") ; aaah, unix. - (if (file-writable-p target-file) - ;; We must disable any code conversion here. - (let* ((coding-system-for-write 'no-conversion) - ;; Write to a tempfile so that if another Emacs - ;; process is trying to load target-file (eg in a - ;; parallel bootstrap), it does not risk getting a - ;; half-finished file. (Bug#4196) - (tempfile (make-temp-name target-file)) - (kill-emacs-hook - (cons (lambda () (ignore-errors (delete-file tempfile))) - kill-emacs-hook))) - (if (memq system-type '(ms-dos 'windows-nt)) - (setq buffer-file-type t)) - (write-region (point-min) (point-max) tempfile nil 1) - ;; This has the intentional side effect that any - ;; hard-links to target-file continue to - ;; point to the old file (this makes it possible - ;; for installed files to share disk space with - ;; the build tree, without causing problems when - ;; emacs-lisp files in the build tree are - ;; recompiled). Previously this was accomplished by - ;; deleting target-file before writing it. - (rename-file tempfile target-file t) - (message "Wrote %s" target-file)) - ;; This is just to give a better error message than write-region - (signal 'file-error - (list "Opening output file" - (if (file-exists-p target-file) - "cannot overwrite file" - "directory not writable or nonexistent") - target-file))) + (if (file-writable-p target-file) + ;; We must disable any code conversion here. + (let* ((coding-system-for-write 'no-conversion) + ;; Write to a tempfile so that if another Emacs + ;; process is trying to load target-file (eg in a + ;; parallel bootstrap), it does not risk getting a + ;; half-finished file. (Bug#4196) + (tempfile (make-temp-name target-file)) + (kill-emacs-hook + (cons (lambda () (ignore-errors (delete-file tempfile))) + kill-emacs-hook))) + (if (memq system-type '(ms-dos 'windows-nt)) + (setq buffer-file-type t)) + (write-region (point-min) (point-max) tempfile nil 1) + ;; This has the intentional side effect that any + ;; hard-links to target-file continue to + ;; point to the old file (this makes it possible + ;; for installed files to share disk space with + ;; the build tree, without causing problems when + ;; emacs-lisp files in the build tree are + ;; recompiled). Previously this was accomplished by + ;; deleting target-file before writing it. + (rename-file tempfile target-file t) + (message "Wrote %s" target-file)) + ;; This is just to give a better error message than write-region + (signal 'file-error + (list "Opening output file" + (if (file-exists-p target-file) + "cannot overwrite file" + "directory not writable or nonexistent") + target-file))) (kill-buffer (current-buffer))) (if (and byte-compile-generate-call-tree (or (eq t byte-compile-generate-call-tree) @@ -2637,7 +2639,7 @@ If FORM is a lambda or a macro, byte-compile it as a function." (setq form (cdr form))) (setq form (car form))) (if (and (eq (car-safe form) 'list) - ;; The spec is evaled in callint.c in dynamic-scoping + ;; The spec is evalled in callint.c in dynamic-scoping ;; mode, so just leaving the form unchanged would mean ;; it won't be eval'd in the right mode. (not lexical-binding)) @@ -3725,7 +3727,7 @@ that suppresses all warnings during execution of BODY." (defun byte-compile-if (form) (byte-compile-form (car (cdr form))) ;; Check whether we have `(if (fboundp ...' or `(if (boundp ...' - ;; and avoid warnings about the relevent symbols in the consequent. + ;; and avoid warnings about the relevant symbols in the consequent. (let ((clause (nth 1 form)) (donetag (byte-compile-make-tag))) (if (null (nthcdr 3 form)) |