gnu: emacs: Update to 28.1.

* gnu/packages/emacs.scm (emacs): Update to 28.1
* gnu/packages/patches/emacs-exec-path.patch: Adjust accordingly.
* gnu/packages/patches/emacs-ignore-empty-xim-styles.patch: Delete file.
* gnu/local.mk: Remove it here.

gnu/local.mk

@@ -1030,7 +1030,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/emacs-exec-path.patch			\
   %D%/packages/patches/emacs-git-email-missing-parens.patch	\
   %D%/packages/patches/emacs-fix-scheme-indent-function.patch	\
-  %D%/packages/patches/emacs-ignore-empty-xim-styles.patch	\
   %D%/packages/patches/emacs-json-reformat-fix-tests.patch	\
   %D%/packages/patches/emacs-highlight-stages-add-gexp.patch	\
   %D%/packages/patches/emacs-hyperbole-toggle-messaging.patch	\

gnu/packages/emacs.scm

@@ -79,17 +79,16 @@
 (define-public emacs
   (package
     (name "emacs")
-    (version "27.2")
+    (version "28.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnu/emacs/emacs-"
                                   version ".tar.xz"))
               (sha256
                (base32
-                "1ff182gjw9wqsbx1kj5gl2r5pbqhp4ar54g04j33fgz6g17cr9xl"))
+                "1qbmmmhnjhn4lvzsnyk7l5ganbi6wzbm38jc1a7hhyh3k78b7c98"))
               (patches (search-patches "emacs-exec-path.patch"
                                        "emacs-fix-scheme-indent-function.patch"
-                                       "emacs-ignore-empty-xim-styles.patch"
                                        "emacs-source-date-epoch.patch"))
               (modules '((guix build utils)))
               (snippet

gnu/packages/patches/emacs-exec-path.patch

@@ -4,13 +4,13 @@ with things like GCC being referenced.
 
 --- a/lisp/loadup.el
 +++ b/lisp/loadup.el
-@@ -481,7 +481,8 @@ lost after dumping")))
+@@ -530,7 +530,8 @@ lost after dumping")))
                          ((equal dump-mode "dump") "emacs")
                          ((equal dump-mode "bootstrap") "emacs")
                          ((equal dump-mode "pbootstrap") "bootstrap-emacs.pdmp")
--                        (t (error "unrecognized dump mode %s" dump-mode)))))
-+                        (t (error "unrecognized dump mode %s" dump-mode))))
+-                        (t (error "Unrecognized dump mode %s" dump-mode)))))
++                        (t (error "Unrecognized dump mode %s" dump-mode))))
 +          (exec-path nil))
-       (message "Dumping under the name %s" output)
-       (condition-case ()
-           (delete-file output)
+       (when (and (featurep 'native-compile)
+                  (equal dump-mode "pdump"))
+         ;; Don't enable this before bootstrap is completed, as the

gnu/packages/patches/emacs-ignore-empty-xim-styles.patch

@@ -1,24 +0,0 @@
-Fix contributed upstream here:
-https://debbugs.gnu.org/cgi/bugreport.cgi?bug=42694.
-
-Index: emacs-26.3/src/xfns.c
-===================================================================
---- emacs-26.3.orig/src/xfns.c
-+++ emacs-26.3/src/xfns.c
-@@ -2628,6 +2628,8 @@ xic_free_xfontset (struct frame *f)
- static XIMStyle
- best_xim_style (XIMStyles *xim)
- {
-+  if (xim == NULL) goto out;
-+
-   int i, j;
-   int nr_supported = ARRAYELTS (supported_xim_styles);
-
-@@ -2636,6 +2638,7 @@ best_xim_style (XIMStyles *xim)
-       if (supported_xim_styles[i] == xim->supported_styles[j])
-	return supported_xim_styles[i];
-
-+ out:
-   /* Return the default style.  */
-   return XIMPreeditNothing | XIMStatusNothing;
- }