this is obsolete doc -- see http://doc.nethence.com/ instead

Installing XBMC on Slackware 13.37 

Requirements 

Make sure those packages are installed, 

slackpkg search tetex  # needed by ffmpeg

Make sure you've got the kernel headers some place on your system. LIRC needs 'smp_lock.h'. 

Fetch, compile (put the source file into slackbuilds extracted folder and run the slackbuild script) and install (installpkg) those Slackbuilds (http://slackbuilds.org/), 

avahi

cwiid

ffmpeg

id3lib

json-c      # needed by pulseaudio

lame      # needed by ffmpeg

libass

libbluray

libcec

libdaemon    # needed by avahi

libdvdcss

libmicrohttpd

libmodplug

libmpeg2

libnfs

libssh

libva

libvdpau

lirc      # needs smp_lock.h (13.37's 2.6.37.6 has it)

pulseaudio

pybluez

rtmpdump

speex      # needed by pulseaudio

vobcopy

x264      # needed by ffmpeg

xbmc      # compile at last

yajl

Note. for some of those packages, you'll have to add some groups and users. It's mentioned during the installation. 

If you get lost during the process, eventually check which last package you installed, 

ls -ltr /var/log/packages/

References 

http://slackbuilds.org/repository/13.37/multimedia/xbmc/