Installation

The package distribution files are ``flat'' Apple package files. The installation procedure is pretty much the same as under Unix/Linux, using the wr_install script from a terminal window. Due to the X-Windows support, graphical operation from remote systems is possible if running a local X-server program.

There are two differences from the Linux releases.

1. The programs use the GTK-2 graphical interface toolkit for display, which is supplied in a separate ``gtk2-bundle-x11'' distribution file. As in Windows, the bundle supplies all of the libraries and supporting files needed, as they are not native to OS X. The user will need to download and install the bundle package. Once installed, it should rarely if ever need to be upgraded. The bundle can be installed with the wr_install script, or with Apple's installer, the same as the program distribution files.

2. The program installation location can not be changed. The programs will be installed under /usr/local/xictools, and the bundle is installed under /usr/local/gtk2-bundle-x11.

The user must have root permission to install the programs. If a root password has been defined, the user can use ``su'' to become root as in Unix/Linux. Otherwise, there is a ``sudo'' command that can be issued which provides temporary root privileges to certain pre-designated users. From a command line, one can use sudo to execute commands that require root privileges. The user is asked for their password, and the command is executed if the password is accepted.

The sudo command is built into the wr_install script, so that users should not need to become root explicitly to perform updates. To edit configuration files in the installation, root access is needed.