gnu: emacs-next: Update to 29.0.50-2.4aeb80c.

* gnu/packages/patches/emacs-native-comp-driver-options.patch: New file.
* gnu/local.mk: Register it here.
* gnu/packages/emacs.scm (emacs-next): Update to 29.0.50-2.4aeb80c.

gnu/local.mk

@@ -1062,6 +1062,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/emacs-highlight-stages-add-gexp.patch	\
   %D%/packages/patches/emacs-libgit-use-system-libgit2.patch    \
   %D%/packages/patches/emacs-lispy-fix-thread-last-test.patch   \
+  %D%/packages/patches/emacs-native-comp-driver-options.patch   \
   %D%/packages/patches/emacs-polymode-fix-lexical-variable-error.patch  \
   %D%/packages/patches/emacs-source-date-epoch.patch		\
   %D%/packages/patches/emacs-telega-path-placeholder.patch	\

gnu/packages/emacs.scm

@@ -381,8 +381,8 @@ languages.")
     (license license:gpl3+)))
 
 (define-public emacs-next
-  (let ((commit "0a5477b448e6b62bcedc1803e531ec7686eea48d")
-        (revision "1"))
+  (let ((commit "4aeb80ccecd0dc3f3b3f567779632a0f23476a09")
+        (revision "2"))
     (package
       (inherit emacs)
       (name "emacs-next")
@@ -395,9 +395,13 @@ languages.")
                (url "https://git.savannah.gnu.org/git/emacs.git/")
                (commit commit)))
          (file-name (git-file-name name version))
+         ;; emacs-source-date-epoch.patch is no longer necessary
+         (patches (search-patches "emacs-exec-path.patch"
+                                  "emacs-fix-scheme-indent-function.patch"
+                                  "emacs-native-comp-driver-options.patch"))
          (sha256
           (base32
-           "0dqmrawkvbypxp8gcnspnhhmfamzp3l62gfgp1pw2l6svz58v991"))))
+           "0rr2iiqsma37gbg4irn69cc2f3mr83ndycg0dsl3ba96i5fw60zs"))))
       (inputs
        (modify-inputs (package-inputs emacs)
          (prepend sqlite)))

gnu/packages/patches/emacs-native-comp-driver-options.patch

@@ -0,0 +1,17 @@
+We substitute this anyway, so let's make it easier to substitute.
+
+--- a/lisp/emacs-lisp/comp.el
++++ b/lisp/emacs-lisp/comp.el
+@@ -178,8 +178,7 @@ and above."
+   :type '(repeat string)
+   :version "28.1")
+ 
+-(defcustom native-comp-driver-options (when (eq system-type 'darwin)
+-                                        '("-Wl,-w"))
++(defcustom native-comp-driver-options nil
+   "Options passed verbatim to the native compiler's back-end driver.
+ Note that not all options are meaningful; typically only the options
+ affecting the assembler and linker are likely to be useful.
+-- 
+2.38.0
+