---

G.1 Haiku Installation and Startup

When Emacs is installed under Haiku, two executables are copied to the binaries directory, which are identical save for some identifying file-system metadata. The first is a normal Emacs executable, emacs, whereas the second, Emacs, incorporates an icon and an application “signature” that abets the system in attributing both file types and open frames to it, thereby enabling it to receive file type assignments, and thus to open files directly from the Tracker.

Several file attributes are set within Emacs that prompt the system to permit only a single copy to run at any given time. This invariant is verified upon the establishment of a display connection, and is enforced by terminating any Emacs process that attempts to create a display connection when one is already present.

For this and other reasons, Emacs is appropriate for starting a GUI session of Emacs, while emacs should be used for other types of Emacs sessions.

Emacs is incapable of receiving unusual modifier keys such as Hyper under Haiku, or to receive accented characters produced from the system Super key map.

By default, the Super modifier is reported when the Option key defined by the operating system is depressed. Analogously, the Meta modifier is assigned to the Command key, and of course Control to the system Control key and Shift to the system Shift key. On a standard PC keyboard, Haiku should map these keys to positions familiar to those using a GNU system, but this may require some adjustment to your system’s configuration to work.

You can customize the relation between modifier keys known to the system and those known to Emacs by means of the variables below.

haiku-meta-keysym

EmacsがMetaキーとして扱うシステムの修飾キー。デフォルトはcommand。

haiku-control-keysym

EmacsがControlキーとして扱うシステムの修飾キー。デフォルトはcontrol。

haiku-super-keysym

EmacsがSuperキーとして扱うシステムの修飾キー。デフォルトはoption。

haiku-shift-keysym

EmacsがShiftキーとして扱うシステムの修飾キー。デフォルトはshift。

これらの変数それぞれにたいする値としてはcommand、control、option、shift、あるいはnilのいずれかのシンボルを指定できます。nilやこれら以外のすべての値にたいしてはデフォルト値が使用されます。

On Haiku, Emacs defaults to using the system tooltip mechanism. Tooltips thus generated are sometimes more responsive, but will not be able to display text properties or faces. If you need those features, customize the variable use-system-tooltips to nil value, whereupon Emacs will use its own implementation of tooltips instead.

Unlike the X window system, Haiku does not provide a system-wide resource database. Since many important options are specified via X resources (see Xのオプションとリソース), an emulation is provided: upon startup, Emacs will load a file named GNU Emacs inside the user configuration directory (normally /boot/home/config/settings), which should be a flattened system message where keys and values are both strings, and correspond to attributes and their values respectively. Such a file may be created with the xmlbmessage tool.

変数haiku-debug-on-fatal-errorが非nilの場合には、致命的シグナルの受信時にEmacsがシステムデバッガを起動します。この変数のデフォルトはtです。システムでGDBを使えない場合には、システムデバッガによって生成されたレポートをバグの報告時に添付してください。