Source: emacs24 Version: 24.5+1-6 Severity: wishlist Tags: patch upstream User: [email protected] Usertags: toolchain X-Debbugs-Cc: [email protected]
Dear Maintainer, autoloads files embed a timestamp. To get a reproducible build [1] for software packages that build-depend on emacs (including emacs24), it would be great to make this timestamp honoring the SOURCE_DATE_EPOCH environment variable [2], that is set to the last debian/changelog entry date when building binary debian packages. Please find attached a proposed patch for this. Regards, Alexis Bienvenüe. [1] https://wiki.debian.org/ReproducibleBuilds/ [2] https://reproducible-builds.org/specs/source-date-epoch/
Description: Make autoloads honour SOURCE_DATE_EPOCH Author: Alexis Bienvenüe <[email protected]> Index: emacs24-24.5+1/lisp/emacs-lisp/autoload.el =================================================================== --- emacs24-24.5+1.orig/lisp/emacs-lisp/autoload.el +++ emacs24-24.5+1/lisp/emacs-lisp/autoload.el @@ -604,7 +604,10 @@ Return non-nil if and only if FILE adds ;; We'd really want to just use ;; `emacs-internal' instead. nil nil 'emacs-mule-unix) - (nth 5 (file-attributes relfile)))) + (let ((source-date-epoch (getenv "SOURCE_DATE_EPOCH"))) + (if (null source-date-epoch) + (nth 5 (file-attributes relfile)) + (seconds-to-time (string-to-number source-date-epoch)))))) (insert ";;; Generated autoloads from " relfile "\n"))) (insert generate-autoload-section-trailer)))) (message "Generating autoloads for %s...done" file)) @@ -740,7 +743,10 @@ write its autoloads into the specified f t files-re)) dirs))) (done ()) - (this-time (current-time)) + (this-time (let ((source-date-epoch (getenv "SOURCE_DATE_EPOCH"))) + (if (null source-date-epoch) + (current-time) + (seconds-to-time (string-to-number source-date-epoch))))) ;; Files with no autoload cookies or whose autoloads go to other ;; files because of file-local autoload-generated-file settings. (no-autoloads nil)
