Beyond Linux® From Scratch - Version 6.3

Chapter 11. System Utilities

GPM-1.20.1

Introduction to GPM

The GPM (General Purpose Mouse daemon) package contains a mouse server for the console and xterm. It not only provides cut and paste support generally, but its library component is used by various software such as Links to provide mouse support to the application. It is useful on desktops, especially if following (Beyond) Linux From Scratch instructions; it's often much easier (and less error prone) to cut and paste between two console windows than to type everything by hand!

Package Information

Additional Downloads

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/GPM

Installation of GPM

Install GPM by running the following commands: 

patch -Np1 -i ../gpm-1.20.1-segfault-1.patch &&
patch -Np1 -i ../gpm-1.20.1-silent-1.patch &&
./configure --prefix=/usr --sysconfdir=/etc &&
LDFLAGS="-lm" make

Now, as the root user: 

make install &&
cp -v conf/gpm-root.conf /etc &&
ldconfig

Command Explanations

LDFLAGS="-lm": The math library must be linked with gpm, as ceil() is used in some cursor scrolling logic.

Configuring GPM

Boot Script

Install the /etc/rc.d/init.d/gpm init script included in the blfs-bootscripts-20080816 package. 

make install-gpm

Config Files

/etc/gpm-root.conf and ~/.gpm-root: The default and individual user gpm-root configuration files.

/etc/sysconfig/mouse: This file contains the name of your mouse device and the protocol which it uses. To create this file, run the following as the root user: 

cat > /etc/sysconfig/mouse << "EOF"
# Begin /etc/sysconfig/mouse

MDEVICE="<yourdevice>"
PROTOCOL="<yourprotocol>"
GPMOPTS="<additional options>"

# End /etc/sysconfig/mouse
EOF

Configuration Information

Examples of values to set MDEVICE, PROTOCOL, and GPMOPTS to are: 

MDEVICE="/dev/psaux"
PROTOCOL="imps2"
GPMOPTS=""

A list of which protocol values are known can be found by running gpm -m [device] -t -help. The MDEVICE setting depends on which type of mouse you have. For example, /dev/ttyS0 for a serial mouse (on Windows this is COM1), /dev/input/mice is often used for USB mice and /dev/psaux for PS2 mice. GPMOPTS is the 'catch all' for any additional options that are needed for your hardware.

Contents

Installed Programs: disable-paste, gpm, gpm-root, hltest, mev, and mouse-test
Installed Libraries: libgpm.{so.a}
Installed Directories: None

Short Descriptions

disable-paste

is a security mechanism used to disable the paste buffer.

gpm

is a cut and paste utility and mouse server for virtual consoles.

gpm-root

is a default handler for gpm. It is used to draw menus on the root window.

hltest

is a simple sample application using the high-level library, meant to be read by programmers trying to use the high-level library.

mev

is a program to report mouse events.

mouse-test

is a tool for determining the mouse type and device it's attached to.

libgpm.{so.a}

contains the API functions to access the GPM daemon.

Last updated on 2007-07-14 18:27:07 -0500