From 1554e044a3e2eede8bf4637395ca4da2388d8e9e Mon Sep 17 00:00:00 2001
From: Zhu Zihao <all_but_last@163.com>
Date: Sat, 12 Dec 2020 10:34:37 +0800
Subject: [PATCH 2/2] gnu: ecl: Remove build-stamp to improve reproducibility.

* gnu/packages/lisp.scm(ecl)[arguments]<phases>: Add "remove-build-stamp" phase.
Move "wrap" phase after "remove-build-stamp" phase.
---
 gnu/packages/lisp.scm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/lisp.scm b/gnu/packages/lisp.scm
index 4592724867..f250e8804b 100644
--- a/gnu/packages/lisp.scm
+++ b/gnu/packages/lisp.scm
@@ -16,6 +16,7 @@
 ;;; Copyright © 2019 Jesse Gildersleve <jessejohngildersleve@protonmail.com>
 ;;; Copyright © 2019, 2020 Guillaume Le Vaillant <glv@posteo.net>
 ;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2020 Zhu Zihao <all_but_last@163.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -258,7 +259,12 @@ interface to the Tk widget system.")
                     (contrib-asdf "contrib/asdf/asdf.lisp"))
                (copy-file guix-asdf contrib-asdf))
              #t))
-         (add-after 'install 'wrap
+         (add-after 'install 'remove-build-stamp
+           (lambda* (#:key outputs #:allow-other-keys)
+             (delete-file (string-append (assoc-ref outputs "out")
+                                         "/lib/ecl-" ,version "/build-stamp"))
+             #t))
+         (add-after 'remove-build-stamp 'wrap
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((ecl (assoc-ref outputs "out"))
                     (input-path (lambda (lib path)
-- 
2.29.2