= Building Quake 3 in Raspbian =
Documentation below pulled from the [[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=66&t=6473|Raspbian Forum]].  Please update this page if errors in the build process are discovered.

 1. Make sure you're up-to-date:
 {{{
    sudo apt-get update
    sudo apt-get dist-upgrade
    sudo rpi-update 192
}}}
  . Reboot.

 1. Install required packages:
 {{{
    sudo apt-get install git gcc build-essential libsdl1.2-dev
}}}

 1. Download the Quake 3 source code:
 {{{
    mkdir ~/src
    cd ~/src
    git clone https://github.com/raspberrypi/quake3.git
    cd quake3
}}}

 1. Edit ''build.sh'' in ''quake3'' directory:
 {{{
    change line 8 to this:  ARM_LIBS=/opt/vc/lib
    change line 16 to this: INCLUDES="-I/opt/vc/include -I/opt/vc/include/interface/vcos/pthreads"
    comment out line 19:    #CROSS_COMPILE=bcm2708-
}}}

 1. Do a '''./build.sh'''

 1. Wait for compilation to finish, takes about 1 hour on RasPi.

 1. Find copies of the following somewhere (other guides will show you) and place in '''build/release-linux-arm/baseq3: '''
  . '''pak0.pk3, pak1.pk3, pak2.pk3, pak3.pk3, pak4.pk3, pak5.pk3, pak6.pk3, pak7.pk3, pak8.pk3'''

 1. Update your permissions for directFB access:
 {{{
    sudo usermod -a -G video [your_username]
}}}
  . Log out, log back in. This will allow you to run game as non-root. Works with other directFB/SDL based stuff, too.

 1. If you do not intend to keep Quake 3 source code, you may reorganize files as suggested by [[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6511&p=83593#p83593|this thread]] on RasPi Forum.

 1. Run '''ioquake3.arm'''. Shoot things.

Highly non-scientific testing (i.e. having played a normal-Debian build a few days ago) suggests framerate is quite dramatically improved. Go Raspbian!

== Troubleshooting ==
 * Compiling fails, complaining about missing {{{vcos_platform_types.h}}} file. See this issue in RasPi repository: https://github.com/raspberrypi/firmware/issues/34. (Build script was recently fixed to include correct path to missing header file. Do git pull.)

 * Game cannot find Broadcom libraries. As root do:
 {{{
    cd /etc/ld.so.conf.d/
    echo /opt/vc/lib >broadcomlib.conf
    ldconfig
}}}

 * If you get an error like "'''failed to open vchiq instance'''" you'll need to do as root:
 {{{
    echo 'SUBSYSTEM=="vchiq",GROUP="video",MODE="0660"' > /etc/udev/rules.d/10-vchiq-permissions.rules
    usermod -a -G video [your_username]
}}}
  . Or as one time temporary solution (until reboot):
 {{{
    chmod a+rw /dev/vchiq
}}}

 * If running as a non-root user and running from the console (non X11), then quake3 may bomb out with an error message like ''''SDL_Init()'''' ''''Unable to open mouse''''. You'll need to fix permissions so that non-root user can access /dev/input/mice and /dev/input/mouse0.
  . Create new file {{{/etc/udev/rules.d/99-input.rules}}}:
 {{{
    # file /etc/udev/rules.d/99-input.rules
    KERNEL=="mice", NAME="input/%k", MODE="664", GROUP="input"
    KERNEL=="mouse*", NAME="input/%k", MODE="664", GROUP="input"
}}}
  . Add a new group and add your user(s) to it:
 {{{
groupadd input
usermod -a -G input [your_username]
}}}
  . Log out, log back in.