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* INSTALL: Document using Emacs on alternative window systems.

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Po Lu 2022-01-14 12:34:18 +08:00
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INSTALL
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@ -226,6 +226,32 @@ e.g. 'emacs25'). On Red Hat-based systems, the corresponding command is
On FreeBSD, the command is 'pkg install -y `pkg rquery %dn emacs-devel`'.
* Alternative window systems
If you want to use Emacs on one of the alternative window systems
available on GNU/Linux and some Unix systems, such as Wayland or
Broadway, you can install the PGTK port of Emacs, which utilizes the
GTK+ toolkit to support them, by passing '--with-pgtk' to configure,
like this:
./configure --with-pgtk
Keep in mind that the only toolkit which will work with this option is
GTK+ version 3, and specifying any X-specific configuration option is an
error when it is enabled.
Afterwards, you will be able to switch between running Emacs on X,
Wayland and Broadway using the 'GDK_BACKEND' environment variable.
GTK+ should automatically detect and use the correct value for your
system, but you may have to specify it manually. For example, you
must run Emacs like this to force GTK+ to run under Broadway:
GDK_BACKEND=broadway emacs ...
Where '...' denotes any further options you may want to pass to Emacs.
GNUstep also has support for the Wayland window system. If that is what
you want, see nextstep/INSTALL.
DETAILED BUILDING AND INSTALLATION: