Emacs Head

Emacs Head is an Homebrew formula based on the original Homebrew emacs one.

This formula currently supports:

• GNU Emacs 26.3
• GNU Emacs HEAD (currently 28.x)

Bottles for Emacs 26.3 are available for the following macOS versions:

• Catalina
• Mojave
• High Sierra

if you need support for an older macOS version open an issue.

Installation

You can install this formula using:

GNU Emacs 26.3

brew tap daviderestivo/emacs-head
brew install emacs-head --with-cocoa

GNU Emacs HEAD

brew tap daviderestivo/emacs-head
brew install emacs-head --HEAD --with-cocoa

Screenshots

GNU Emacs running in terminal mode (28.x)

GNU Emacs running in GUI mode (28.x)

GUI Theme: atom-one-dark-theme

Modeline Theme: smart-mode-line-atom-one-dark-theme

Compilation options

The following compilation options are available:

Option	Description
--with-crash-debug	Append `-g3` to CFLAGS to enable crash debugging
--with-cocoa	Build a Cocoa version of GNU Emacs
--with-ctags	Don’t remove the ctags executable that GNU Emacs provides
--with-dbus	Build with dbus support
--without-gnutls	Disable gnutls support
--with-imagemagick	Build with imagemagick support
--with-jansson	Enable jansson support (only HEAD)
--without-librsvg	Disable librsvg support
--with-mailutils	Build with mailutils support
--with-multicolor-fonts	Enable multicolor fonts support on macOS (only for Emacs 26.3)
--without-modules	Disable dynamic modules support
--with-no-frame-refocus	Disables frame re-focus (ie. closing one frame does not refocus another one)
--without-libxml2	Disable libxml2 support
--with-pdumper	Enable pdumper support
--with-xwidgets	Enable xwidgets support

For the terminal version only of GNU Emacs please omit ”--with-cocoa”.

By default:

• gnutls
• librsvg
• libxml2
• dynamic modules

are enabled. If you want to disable them please use the above ”--without-*” options.

System appearance change support

This patch is enabled by default and can’t be disabled. It adds a hook, ns-system-appearance-change-functions, that is called once the system appearance is changed. Functions added to this hook will be called with one argument, a symbol that is either light or dark. This mainly allows loading a different theme to better match the system appearance.

(add-hook 'ns-system-appearance-change-functions
          #'(lambda (appearance)
              (mapc #'disable-theme custom-enabled-themes)
              (pcase appearance
                ('light (load-theme 'tango t))
                ('dark (load-theme 'tango-dark t)))))

Note that this hook is run early in the startup process, so if you want your theme to match the system appearance when Emacs starts, you can register your function(s) in your early-init.el. The hook is NOT run in TTY Emacs sessions.

Pdumper support

The portable dumper is available in HEAD. To enable this feature please use `–HEAD –with-pdumper`.

For a pdumper configuration example you could take inspiration from Galactic Emacs: pdumper-init.el and pdumper-config.el configuration files.

Xwidgets support

This formula support via a (patch) native macOS X Cocoa Xwidgets support via embedding a native webkit window. To enable this feature please use `–HEAD –with-xwidgets`.

Available icons

Option	Description	Image	URL
--with-modern-icon-cg433n	Use a modern style icon by cg433n		Link
--with-modern-icon-sjrmanning	Use a modern style icon by sjrmannings		Link
--with-modern-icon-sexy-v1	Use a modern style icon by Emacs is Sexy		Link
--with-modern-icon-sexy-v2	Use a modern style icon by Emacs is Sexy		Link
--with-modern-icon-papirus	Use a modern style icon by Papirus Development Team		Link
--with-modern-icon-pen	Use a modern style icon by Kentaro Ohkouchi		Link
--with-modern-icon-black-variant	Use a modern style icon by BlackVariant		Link
--with-modern-icon-nuvola	Use a modern style icon by David Vignoni		Link
--with-retro-icon-gnu-head	Use a retro style icon by Aurélio A. Heckert		Link
--with-retro-icon-sink-bw	Use a retro style icon by Unknown		Link
--with-retro-icon-sink	Use a retro style icon by Erik Mugele		Link

Why yet another Homebrew Emacs formula?

Since the option --with-cocoa is not available in the latest Emacs homebrew-core formula (see pull request), I decided to build my own formula.

About the logo

‘Kitchen Sink’ OS Announced

Coding has begun on a new operating system code named ‘Kitchen Sink’. The new OS will be based entirely on GNU Emacs. One programmer explained, “Since many hackers spend a vast amount of their time in Emacs, why not just make it the operating system?” When asked about the name, he responded, “Well, it has been often said that Emacs has everything except a kitchen sink. Now it will.” — James Baughn (http://humorix.org/10016)

Collaborating

If you are interested in collaborating please open a Pull Request.