Subject: [PATCH] Get ~emacs-promise~ to build in emacs 28
From: Andrew Patterson <[email-masked]>
To: [email-masked]
Date: Fri, 20 May 2022 15:55:10 -0400
List-Id: <debbugs-submit.debbugs.gnu.org>

From 0df304239efa6dc480e87d2ad833195d15011053 Mon Sep 17 00:00:00 2001
From: Andrew Patterson <[email-masked]>
Date: Fri, 20 May 2022 15:06:07 -0400
Subject: [PATCH] Get ~emacs-promise~ to build in emacs 28

Emacs 28 added a third required argument to ~define-obsolete-function-alias~
and friends.  Upstream has removed the aliases, but hasn't released a new version.
---
 gnu/packages/emacs-xyz.scm | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index ae81f4e395..ca4dec7795 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -30347,19 +30347,29 @@ (define-public emacs-promise
   (package
     (name "emacs-promise")
     (version "1.1")
-    (source
-     (origin
-       (method git-fetch)
-       (uri (git-reference
-             (url "https://github.com/chuntaro/emacs-promise")
-             (commit version)))
-       (file-name (git-file-name name version))
-       (sha256
-        (base32 "1xb34zdbwjvahfhycjphdkm925kgd22dr298c57hwxza4ljc2hxj"))))
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/chuntaro/emacs-promise")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1xb34zdbwjvahfhycjphdkm925kgd22dr298c57hwxza4ljc2hxj"))))
     (build-system emacs-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'patch-obsolete
+                    (lambda* _
+                      (substitute* "promise.el"
+                        (("\\(define-obsolete-function-alias (.*) (.*)\\)" _
+                          obsolete cur) (format #f
+                                         "(define-obsolete-function-alias ~a ~a ~a)"
+                                         obsolete cur "\"2020-01-10\""))))))))
     (home-page "https://github.com/chuntaro/emacs-promise")
     (synopsis "Promises/A+ for Emacs")
-    (description "This is a simple implementation of Promises/A+.
+    (description
+     "This is a simple implementation of Promises/A+.
 
 This implementation ports the following Promises/A+ features
 faithfully.  See @url{https://github.com/then/promise}.
@@ -30371,7 +30381,8 @@ (define-public emacs-promise
 @item It supports \"thenable\".
 @item It supports \"Inheritance of Promise\".
 @item It supports \"rejection-tracking\".
-@end itemize\n")
+@end itemize
+")
     (license license:gpl3+)))
 
 (define-public emacs-async-await

base-commit: 598f7289db9955584457ffc11c8504f3938a1618
-- 
2.36.1

-- 
Andrew Patterson

John H. Cochrane is a professor of economics at Chicago, which is 
like being a professor of economics but more so.
    --<https://putanumonit.com/2018/12/14/defense-of-finance/>