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gnu: Add emacs-next.

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Add `emacs-next' for building latest Emacs from git.

* gnu/packages/emacs.scm (emacs-next): New variable.
(emacs): make the autoload deletion snippet not fail when eshell/esh-groups.el
does not exist.  This enables reuse of the entire snippet field of `emacs' for
`emacs-next'.
* gnu/packages/patches/emacs27-exec-path.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add the above patch file to it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Amin Bandali 2019-12-17 23:49:49 -05:00 • committed by Ludovic Courtès
parent 17a1566f76
commit 92d2205a19
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GPG key ID: 090B11993D9AEBB5
3 changed files with 127 additions and 2 deletions
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18
gnu/packages/patches/emacs27-exec-path.patch Normal file
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@ -0,0 +1,18 @@
Do not capture the build-time value of $PATH in the 'emacs' executable
since this can noticeably increase the size of the closure of Emacs
with things like GCC being referenced.
(like emacs-exec-path.patch, but for Emacs 27)
--- a/lisp/loadup.el
+++ b/lisp/loadup.el
@@ -479,7 +479,8 @@ 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))))
+ (exec-path nil))
(message "Dumping under the name %s" output)
(condition-case ()
(delete-file output)