summaryrefslogtreecommitdiff
blob: cc7fbe8e6523ba6eb93280b1167bc502664b1597 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/profiles/use.desc,v 1.438 2010/05/24 16:30:00 mr_bones_ Exp $

# Keep them sorted

3dfx - Enable support for Voodoo chipsets, also called as 3DFX and TDFX
3dnow - Adds support for 3dnow multimedia processor instructions
X - Adds support for X11
Xaw3d - Adds support for the 3d athena widget set
a52 - Enables support for decoding ATSC A/52 streams used in DVD
aac - Enables support for MPEG-4 AAC Audio
aalib - Adds support for media-libs/aalib (ASCII-Graphics Library)
accessibility - Adds support for accessibility (eg 'at-spi' library)
acl - Adds support for Access Control Lists
acpi - Adds support for Advanced Configuration and Power Interface
adabas - Adds support for the Adabas database engine
adns - Adds support for the adns DNS client library
afs - Adds OpenAFS support (distributed file system)
aim - Enable AIM IM protocol support
alsa - Adds support for media-libs/alsa-lib (Advanced Linux Sound Architecture)
altivec - Adds support for optimizations for G4 and G5/ppc970 processors
ao - Use libao audio output library for sound playback
apache2 - Add Apache2 support
apm - Adds APM (Advanced Power Management) support
atm - Enable Asynchronous Transfer Mode protocol support
audiofile - Adds support for libaudiofile where applicable
avahi - Add avahi/Zeroconf support
aqua - Include support for the Aqua / Carbon GUI
bash-completion - Enable bash-completion support
bcmath - Adds support for libbcmath
berkdb - Adds support for sys-libs/db (Berkeley DB for MySQL)
bidi - Enables bidirectional language support
bindist - Flag to enable or disable options for prebuilt (GRP)  packages (eg. due to licensing issues)
birdstep - Adds support for the Birdstep Database Server
blas - Adds support for the virtual/blas numerical library
bluetooth - Enables Bluetooth Support
bootstrap - !!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used during original system bootstrapping [make stage2]
boundschecking - Adds the bounds checking patch by Haj Ten Brugge, this will DISABLE the hardened PIE+SSP patches
branding - Enable Gentoo specific branding
bsf - Enable support for Apache Bean Scripting Framework (dev-java/bsf)
build - !!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used for creating build images and the first half of bootstrapping [make stage1]
bzip2 - Use the bzlib compression library
cairo - Enable support for the cairo graphics library
calendar - Adds support for calendars (not using mcal!)
canna - Adds support for the Canna kana to kanji conversion engine
caps - Use Linux capabilities library to control privilege
cdb - Adds support for the CDB database engine from the author of qmail
cdda - Adds Compact Disk Digital Audio (Standard Audio CD) support
cddb - Access cddb servers to retrieve and submit information about compact disks
cdinstall - Copies files from the CD rather than asking the user to copy them, mostly used with games
cdparanoia - Enables cdparanoia (audio CD ripper) support
cdr - Adds support for CD writer hardware
cgi - Add CGI script support
chasen - Enable chasen (Japanese Morphological Analysis System) support
cjk - Adds support for Multi-byte character languages (Chinese, Japanese, Korean)
clamav - Adds support for Clam AntiVirus software (usually with a plugin)
coreaudio - Build the CoreAudio driver on Mac OS X systems
cracklib - Support for cracklib strong password checking
crypt - Add support for encryption -- using mcrypt or gpg where applicable
cscope - Enables cscope interface -- in vim for example
css - Enables reading of encrypted DVDs
ctype - Enables ctype functions
cups - Add support for CUPS (Common Unix Printing System)
curl - Adds support for client-side URL transfer library
curlwrappers - Adds support for using curl in streams
custom-cflags - Build with user-specified CFLAGS (unsupported)
cvs - Enable CVS (Concurrent Versions System) integration
cxx - Builds support for C++ (bindings, extra libraries, code generation, ...)
db2 - Enables support for IBM DB2 database server
dbase - Adds support for dbase file format
dbi - Enable dev-db/libdbi (database-independent abstraction layer) support
dbm - Adds support for generic DBM databases
dbmaker - Adds support for dbmaker database server
dbus - Enable dbus support for anything that needs it (gpsd, gnomemeeting, etc)
dbx - Adds database abstraction layer
debug - Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
dedicated - Adds support for dedicated game servers (some packages do not provide clients and servers at the same time)
dga - Adds DGA (Direct Graphic Access) support for X
directfb - Adds support for DirectFB layer (library for FB devices)
djvu - support DjVu, a PDF-like document format esp. suited for scanned documents
doc - Adds extra documentation (API, Javadoc, etc)
dri - Enable direct rendering: used for accelerated 3D and some 2D, like DMA
dts - Enables DTS Coherent Acoustics decoder support
dv - Enables support for a codec used by many camcorders
dvb - Adds support for DVB (Digital Video Broadcasting)
dvd - Adds support for DVDs
dvdr - Adds support for DVD writer hardware (e.g. in xcdroast)
eds - Enables support for Evolution-Data-Server (EDS)
emacs - Adds support for GNU Emacs
emboss - Adds support for the European Molecular Biology Open Software Suite
empress - Adds support for the Empress database server
empress-bcs - Adds local access support for the Empress database server
encode - Adds support for encoding of audio or video files
enscript - Add enscript support to colourize code stored in the repository
esd - Adds support for media-sound/esound (Enlightened Sound Daemon)
esoob - Adds support for Easysoft OOD database
evo - Adds support for mail-client/evolution
examples - Install examples, usually source code
exif - Adds support for reading EXIF headers from JPEG and TIFF images
expat - Enable the use of dev-libs/expat for XML parsing
fam - Enable FAM (File Alteration Monitor) support
fastcgi - Add support for the FastCGI interface
fbcon - Adds framebuffer support for the console, via the kernel
ffmpeg - Enable ffmpeg-based audio/video codec support
fftw - Use FFTW library for computing Fourier transforms
firebird - Adds support for the Firebird relational database
firefox - Build against Firefox instead of Seamonkey/Mozilla
flac - Adds support for FLAC: Free Lossless Audio Codec
flatfile - Adds dbm support for flat files
fltk - Adds support for the Fast Light Toolkit gui interface
fontconfig - Support for configuring and customizing font access via media-libs/fontconfig
foomaticdb - Adds support for the foomatic printing driver database
fortran - Adds support for fortran (formerly f77)
freetds - Adds support for the TDS protocol to connect to MSSQL/Sybase databases
freewnn - Adds support for FreeWnn kana to kanji conversion engine
frontbase - Adds support for the frontbase sql server
ftp - Adds FTP (File Transfer Protocol) support
gcj - Enable building with gcj (The GNU Compiler for the Javatm Programming Language)
gd - Adds support for media-libs/gd (to generate graphics on the fly)
gd-external - Use the external version of gd rather than the bundled one (possibly dangerous)
gdbm - Adds support for sys-libs/gdbm (GNU database libraries)
geoip - Add geoip support for country and city lookup based on IPs
ggi - Adds support for media-libs/libggi (non-X video api/drivers)
gif - Adds GIF image support
gimp - Build a plugin for the GIMP
ginac - Adds sci-mathematics/ginac (symbolic math) support
glut - Build an OpenGL plugin using the GLUT library
gmp - Adds support for dev-libs/gmp (GNU MP library)
gnome - Adds GNOME support
gnome-keyring - Enable support for storing passwords via gnome-keyring
gnuplot - Enable support for gnuplot (data and function plotting)
gnustep - Adds integration with GNUstep environment
gnutls - Adds support for net-libs/gnutls (TLS 1.0 and SSL 3.0 support)
gphoto2 - Adds digital camera support
gpm - Adds support for sys-libs/gpm (Console-based mouse driver)
gps - Adds support for Global Positioning System
graphviz - Adds support for the Graphviz library
gzip - just to commit
gsl - Use the GNU scientific library for calculations
gsm - Adds support for the gsm lossy speech compression codec
gstreamer - Adds support for media-libs/gstreamer (Streaming media)
gtk - Adds support for x11-libs/gtk+ (The GIMP Toolkit)
gtkhtml - Adds support for gnome-extra/gtkhtml
guile - Adds support for the guile Scheme interpreter
hal - Enable Hardware Abstraction Layer (HAL) support
handbook - Enable handbooks generation for KDE4.
hardened - activate default security enhancements for toolchain (gcc, glibc, binutils)
hddtemp - Enable monitoring of hdd temperature (app-admin/hddtemp)
hdf5 - Adds support for the Hierarchical Data Format v5
ibm - Add support for IBM ppc64 specific systems
iconv - Enable support for the iconv character set conversion library
icq - Enable ICQ IM protocol support
icu - Enable ICU (Internationalization Components for Unicode) support, using dev-libs/icu
idn - Enable support for Internationalized Domain Names
ieee1394 - Enable FireWire/iLink IEEE1394 support (dv, camera, ...)
imagemagick - Enables support for Imagemagick (image converter)
imap - Adds support for IMAP (Internet Mail Application Protocol)
imlib - Adds support for imlib, an image loading and rendering library
inifile - Adds dbm support for .ini files
innodb - Adds innodb support for mySQL (transaction support)
interbase - Adds support for Interbase database
iodbc - Adds support for iODBC library
ipod - Enable support for iPod device access
ipv6 - Adds support for IP version 6
jabber - Enable jabber IM protocol support
jack - Adds support for the JACK Audio Connection Kit
java - Adds support for Java
java6 - Use Java 1.6 to build package with || ( reduced deps, 1.6 features, source/target 1.6 )
javascript - Enables javascript support
jbig - enables jbig-kit support for tiff, Hylafax, ImageMagick, etc
jingle - Enables voice calls for jabber
joystick - Add support for joysticks in all packages
jpeg - Adds JPEG image support
jpeg2k - Support for JPEG 2000, a wavelet-based image compression format
kontact - Enable support for the KDE personal information manager (kde-base/kdepim*)
kde - Adds support for kde-base/kde (K Desktop Enviroment)
kdeenablefinal - EXPERIMENTAL: KDE ebuilds will use the enable-final flag, yielding compilation speedups at the cost of heavy mem usage and potentially causing problems. We strongly discourage setting this
kdeprefix - Makes a KDE prefixed install into /usr/kde/${SLOT} if enabled or into /usr (FHS compatible) otherwise
kerberos - Adds kerberos support
kolab - Adds support for the Kolab groupware server
krb4 - Adds optional kerberos 4 compatibility support
ladspa - Enables the ability to support ladspa plugins
lame - Prefer using LAME libraries for MP3 encoding support
lapack - Adds support for the virtual/lapack numerical library
lash - Adds LASH Audio Session Handler support
latex - Adds support for LaTeX (typesetting package)
lcms - Adds lcms support (color management engine)
ldap - Adds LDAP support (Lightweight Directory Access Protocol)
libcaca - Add support for colored ASCII-art graphics
libedit - Use the libedit library (replacement for readline)
libgda - Adds GNOME Data Access support
libnotify - Enable desktop notification support
libsamplerate - Build with support for converting sample rates using libsamplerate
libwww - Adds libwww support (General purpose WEB API)
lirc - Adds support for lirc (Linux's Infra-Red Remote Control)
livecd - !!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used during livecd building
lm_sensors - Adds linux lm_sensors (hardware sensors) support
lua - Enable Lua scripting support
lzo - Enables support for lzo compression
m17n-lib - Enable m17n-lib support
mad - Adds support for mad (high-quality mp3 decoder library and cli frontend)
maildir - Adds support for maildir (~/.maildir) style mail spools
mailwrapper - Adds mailwrapper support to allow multiple MTAs to be installed
matroska - Adds support for the matroska container format (extensions .mkv, .mka and .mks)
matrox - Adds Matrox MGA support to mplayer
mbox - Adds support for mbox (/var/spool/mail) style mail spools
mcve - Support for the MCVE credit card payment system
memlimit - Adds memory usage limiting in supporting programs
mhash - Adds support for the mhash library
migemo - Enables migemo support for Japanese
mikmod - Adds libmikmod support to allow playing of SoundTracker-style music files
milter - Adds sendmail mail filter (milter) support
mime - Adds MIME support
minimal - Install a very minimal build (disables, for example, plugins, fonts, most drivers, non-critical features)
mmap - Adds mmap (memory map) support
mmx - Adds support for optimizations for Pentium MMX and Athlon class processors
mng - Adds support for libmng (MNG images)
modplug - Adds libmodplug support
mono - Build Mono bindings to support dotnet type stuff
motif - Adds support for the Motif toolkit
modules - Build the kernel modules
mozilla - Adds support for the Mozilla web-browser
mp3 - Add support for reading mp3 files
mp4 - Support for MP4 container format
mpeg - Adds libmpeg3 support to various packages
mpi - Adds MPI (Message Passing Interface) layer to the apps that support it
mplayer - Enable mplayer support for playback or encoding
msn - Enable MSN Messenger IM protocol support
msql - Adds support for the MSQL database server
mssql - Adds support for Microsoft SQL Server database
mtp - Enable support for Media Transfer Protocol
mule - Adds multi-language support to XEmacs
multilib - On 64bit systems, if you want to be able to compile 32bit and 64bit binaries
musepack - Enable support for the musepack audio codec
musicbrainz - Lookup audio metadata using MusicBrainz community service (musicbrainz.org)
mysql - Adds mySQL Database support
mysqli - Adds support for the improved mySQL libraries
nas - Adds support for network audio sound
ncurses - Adds ncurses support (console display library)
neXt - Enable neXt toolkit
netboot - Enables network booting
netcdf - Enable NetCDF data format support
networkmanager - Enable net-misc/networkmanager support
nis - Support for NIS/YP services
nls - Adds Native Language Support (using gettext - GNU locale utilities)
nntp - Add support for newsgroups (Network News Transfer Protocol)
nocd - Install all files required to run the application without a CD mounted
nocxx - Disable support for C++ (DON'T USE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)
nptl - Enable support for Native POSIX Threads Library, the new threading module (requires linux-2.6 or better usually)
nsplugin - Build plugin for browsers supporting the Netscape plugin architecture (that is almost any modern browser)
ocaml - Adds support/bindings for the Ocaml language
ocamlopt - Enables ocamlopt support (ocaml native code compiler) -- Produces faster programs (Warning: you have to disable/enable it at a global scale)
oci8 - Adds Oracle 8 Database Support
oci8-instant-client - Use dev-db/oracle-instantclient-basic as Oracle provider instead of requiring a full Oracle server install
odbc - Adds ODBC Support (Open DataBase Connectivity)
offensive - Enables potentially offensive items in packages
ofx - Enable support for importing (and exporting) OFX (Open Financial eXchange) data files
ogg - Adds support for the Ogg container format (commonly used by Vorbis, Theora and flac)
old-linux - Add support for linux-2.4 and older
openal - Adds support for the Open Audio Library
openexr - Support for the OpenEXR graphics file format
opengl - Adds support for OpenGL (3D graphics)
openmp - Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
oracle - Enable Oracle Database support
osc - Enables support for Open Sound Control
oscar - Enable Oscar (AIM/ICQ) IM protocol support
oss - Adds support for OSS (Open Sound System)
pam - Adds support for PAM (Pluggable Authentication Modules) - DANGEROUS to arbitrarily flip
pch - Enable precompiled header support for faster compilation at the expense of disk space and memory (>=sys-devel/gcc-3.4 only)
pcmcia - Adds support for PCMCIA slots/devices found on laptop computers
pcntl - Adds support for process creation functions
pcre - Adds support for Perl Compatible Regular Expressions
pda - Adds support for portable devices
pdf - Adds general support for PDF (Portable Document Format), this replaces the pdflib and cpdflib flags
perl - Adds support/bindings for the Perl language
php - Include support for the PHP language
plasma - Build optional plasma widgets that require kde-base/libplasma
plotutils - Add support for plotutils (library for 2-D vector graphics)
png - Adds support for libpng (PNG images)
policykit - Use sys-auth/policykit to gain privileges
portaudio - Adds support for the crossplatform portaudio audio API
posix - Adds support for POSIX-compatible functions
postgres - Adds support for the postgresql database
ppds - Adds support for automatically generated ppd (printing driver) files
prelude - Adds support/bindings for the Prelude Intrusion Detection System
prefix - Defines if a Gentoo Prefix offset installation is used
profile - Adds support for software performance analysis (will likely vary from ebuild to ebuild)
pulseaudio - Adds support for PulseAudio sound server
python - Adds support/bindings for the Python language
qdbm - Adds support for the qdbm (Quick Database Manager) library
qmail-spp - Adds support for qmail SMTP plugins
qt4 - Adds support for the Qt GUI/Application Toolkit version 4.x
quicktime - Adds support for OpenQuickTime
radius - Adds support for RADIUS authentication
raw - Add support for raw image formats
rdesktop - Adds support for the remote desktop protocol, usually used to connect to Windows servers
readline - Enables support for libreadline, a GNU line-editing library that almost everyone wants
recode - Enables support for the GNU recode library
rss - Enables support for RSS feeds
ruby - Adds support/bindings for the Ruby language
samba - Adds support for SAMBA (Windows File and Printer sharing)
sapdb - Adds support for SAP DB
sasl - Adds support for the Simple Authentication and Security Layer
savedconfig - Use this to restore your config from /etc/portage/savedconfig ${CATEGORY}/${PN}. Make sure your USE flags allow for appropriate dependencies
scanner - Adds support for scanner hardware (e.g. build the sane frontend in kdegraphics)
sdl - Adds support for Simple Direct Layer (media library)
seamonkey - Adds support for the Seamonkey web-browser
selinux - !!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur
semantic-desktop - Cross-KDE support for semantic search and information retrieval
session - Adds persistent session support
sharedext - Adds support for building shared extensions in PHP
sharedmem - Adds support for shared memory use
shorten - Adds support for the shorten audio compressor
simplexml - support for SimpleXML
skey - Enable S/Key (Single use password) authentication support
slang - Adds support for the slang text display library (it's like ncurses, but different)
slp - Adds Service Locator Protocol support
smartcard - Enables smartcard support
smp - Enable support for multiprocessors or multicore systems
sndfile - Adds support for libsndfile
snmp - Adds support for the Simple Network Management Protocol if available
soap - Adds support for SOAP (Simple Object Access Protocol)
sockets - Adds support for tcp/ip sockets
socks5 - Adds support for the socks5 proxy
solid - Adds support for the Solid database engine
source - Zip the sources and install them
sox - Adds support for Sound eXchange (SoX)
speex - Adds support for the speex audio codec (used for speech)
spell - Adds dictionary support
spl - Adds support for the Standard PHP Library
sqlite - Adds support for sqlite - embedded sql database
sqlite3 - Adds support for sqlite3 - embedded sql database
sse - fast floating point optimization for PentiumIII+ class chips
sse2 - faster floating point optimization for SSE2 capable chips
ssl - Adds support for Secure Socket Layer connections
startup-notification - Enable application startup event feedback mechanism
static - !!do not set this during bootstrap!! Causes binaries to be statically linked instead of dynamically
static-libs - Build static libraries
subversion - Enable subversion (version control system) support
suid - Enable setuid root program, with potential security risks
svg - Adds support for SVG (Scalable Vector Graphics)
svga - Adds support for SVGAlib (graphics library)
sybase - Adds support for the Sybase SQL Database Server
sybase-ct - Adds support for Sybase-CT
symlink - Force kernel ebuilds to automatically update the /usr/src/linux symlink
syslog - Enables support for syslog
sysvipc - Support for System V-compatible inter-process communication
szip - Use the szip compression library
taglib - Enable tagging support with taglib
tcl - Adds support the Tcl language
tcpd - Adds support for TCP wrappers
test - Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore
theora - Adds support for the Theora Video Compression Codec
threads - Adds threads support for various packages. Usually pthreads
tidy - Adds support for HTML Tidy
tiff - Adds support for the TIFF image format
timidity - Build with Timidity++ (MIDI sequencer) support
tk - Adds support for Tk GUI toolkit
tokenizer - Adds support for the PHP file parser
truetype - Adds support for FreeType and/or FreeType2 fonts
uclibc - Enable uclibc specific patches and build or link uclibc
unicode - Adds support for Unicode
usb - Adds USB support to applications that have optional USB support (e.g. cups)
v4l - Enables video4linux support
v4l2 - Enable video4linux2 support
vanilla - Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically
vcd - Video CD support
vhosts - Adds support for installing web-based applications into a virtual-hosting environment
videos - Install optional video files (used in some games)
vim-syntax - Pulls in related vim syntax scripts
vnc - Enable VNC (remote desktop viewer) support
voodoo3 - Adds support for 3Dfx's Voodoo3 video chipset, else defaults to Voodoo4/5 support if not in USE
vorbis - Adds support for the OggVorbis audio codec
wavpack - Add support for wavpack audio compression tools
wddx - Adds support for Web Distributed Data eXchange
wifi - Enable wireless network functions
win32codecs - use win32codecs package for dll avi decoding support (wmv and what not)
wmf - Adds support for the Windows Metafile vector image format
wxwidgets - Adds support for wxWidgets/wxGTK GUI toolkit
wxwindows - Adds support for wxWidgets/wxGTK GUI toolkit (deprecated, use wxwidgets)
x264 - Enable h264 encoding using x264
xattr - Adds support for extended attributes (filesystem-stored metadata)
xcb - Support the X C-language Binding, a replacement for Xlib
xcomposite - Enable support for the Xorg composite extension
xemacs - Add support for XEmacs
xface - Adds xface support used to allow a small image of xface format to be included in an email via the header 'X-Face'
xft - Build with support for XFT font renderer (x11-libs/libXft)
xine - Add support for the XINE movie libraries
xinerama - Add support for the xinerama X11 extension, which allows you to stretch your display across multiple monitors
xinetd - Add support for the xinetd super-server
xml - Add support for XML files
xmlrpc - Support for xml-rpc library
xmp - Enable support for Extensible Metadata Platform (Adobe XMP)
xosd - Sends display using the X On Screen Display library
xpm - Adds support for XPM graphics format
xscreensaver - Adds support for XScreenSaver extension
xsl - Check/Support flag for XSL library (version 1)
xulrunner - Build native browser integration against xulrunner instead of firefox or seamonkey
xv - Adds in optional support for the Xvideo extension (an X API for video playback)
xvid - Adds support for xvid.org's open-source mpeg-4 codec
yahoo - Enable Yahoo Messenger IM protocol support
yaz - Adds in optional support for the Z39.50 Protocol for Information Retrieval (YAZ)
zeroconf - Support for DNS Service Discovery (DNS-SD)
zlib - Adds support for zlib (de)compression
zsh-completion - Enable zsh completion support