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-rw-r--r--lisp/emacs-lisp/bytecomp.el8
1 files changed, 7 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
index 12fab768db5..5a7f96fb988 100644
--- a/lisp/emacs-lisp/bytecomp.el
+++ b/lisp/emacs-lisp/bytecomp.el
@@ -1821,6 +1821,7 @@ With argument, insert value in current buffer after the form."
;; new in Emacs 22.1.
(read-with-symbol-positions inbuffer)
(read-symbol-positions-list nil)
+ (old-style-backquotes nil)
;; #### This is bound in b-c-close-variables.
;; (byte-compile-warnings (if (eq byte-compile-warnings t)
;; byte-compile-warning-types
@@ -1865,7 +1866,12 @@ With argument, insert value in current buffer after the form."
;; Make warnings about unresolved functions
;; give the end of the file as their position.
(setq byte-compile-last-position (point-max))
- (byte-compile-warn-about-unresolved-functions))
+ (byte-compile-warn-about-unresolved-functions)
+ ;; Warn about the use of old-style backquotes.
+ (when old-style-backquotes
+ (byte-compile-warn "!! The file uses old-style backquotes !!
+This functionality has been obsolete for more than 10 years already
+and will be removed soon. See (elisp)Backquote in the manual.")))
;; Fix up the header at the front of the output
;; if the buffer contains multibyte characters.
(and filename (byte-compile-fix-header filename inbuffer outbuffer))))