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+-- $XTermId: INSTALL,v 1.133 2012/06/24 14:18:21 tom Exp $
+-------------------------------------------------------------------------------
+-- Copyright 1997-2011,2012 by Thomas E. Dickey
+--
+-- All Rights Reserved
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a
+-- copy of this software and associated documentation files (the
+-- "Software"), to deal in the Software without restriction, including
+-- without limitation the rights to use, copy, modify, merge, publish,
+-- distribute, sublicense, and/or sell copies of the Software, and to
+-- permit persons to whom the Software is furnished to do so, subject to
+-- the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included
+-- in all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+-- IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
+-- CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+-- TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+-- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+--
+-- Except as contained in this notice, the name(s) of the above copyright
+-- holders shall not be used in advertising or otherwise to promote the
+-- sale, use or other dealings in this Software without prior written
+-- authorization.
+-------------------------------------------------------------------------------
+
+Xterm was originally built as part of the X Window System source tree, using
+imake to generate a Makefile from Imakefile. You can also use the configure
+script to generate a Makefile from Makefile.in:
+
+ + If you have imake (or xmkmf), then you can use those directly,
+ or use the configure script, which normally uses those tools
+ to obtain the special definitions needed to build xterm.
+
+ Ultimately, imake will not be necessary, since it is possible
+ to add configure tests that derive the information that imake
+ would supply.
+
+ + You need the Athena widgets (or a clone, such as Xaw3d or
+ neXtaw), to provide the popup menus.
+
+Even if you have imake, the configure script is still convenient because
+it allows you to build different configurations more easily than with
+imake, simply by specifying options to the configure script.
+
+Options:
+-------
+
+Autoconf configure scripts recognize two types of application-defined
+options, enable/disable and with/without. The latter, by convention, are
+used for denoting inclusion of external packages, while the former denote
+enabling/disabling of internal features. The configure --help option lists
+the available options. This script uses "enable" and "disable" to indicate
+the sense of the default behavior.
+
+The options (in alphabetic order):
+
+ --disable-16-color disable 16-color support
+
+ Do not compile-in code to recognize aixterm-style control sequences
+ that support color values 8-15.
+
+ Most color applications know only about 8 ANSI colors, but some
+ (e.g., ones built with ncurses) do.
+
+ --disable-active-icon disable X11R6.3 active-icon feature
+
+ Do not compile-in code to support the active-icon feature. This is
+ not configured on systems (e.g., X11R5) which lack the library
+ support needed.
+
+ Xterms with an active icon continue to respond to input and update
+ their display when iconified. Not all window managers support
+ active icons. Those that do include fvwm, olvwm and mwm.
+
+ --disable-ansi-color disable ANSI color
+
+ Do not compile-in code for ANSI colors.
+
+ --disable-blink-cursor disable support for blinking cursor
+
+ Do not compile-in code that implements a blinking cursor. The blinking
+ cursor is enabled either by resource setting or by popup menu entry.
+
+ --disable-bold-color disable PC-style mapping of bold colors
+
+ Do not compile-in code that maps colors 8-15 to bold versions of
+ colors 0-7.
+
+ Some applications have hardcoded logic that assumes this. It does
+ not interfere with the 16-color support.
+
+ --disable-boxchars disable fallback-support for box chars
+
+ Do not compile-in code to generate approximations for box/graphic
+ characters.
+
+ Most fonts do not contain the vt100-style graphic characters in
+ positions 0-31. Many applications use the line-drawing characters,
+ e.g., to make boxes. When xterm loads a font, it checks if those
+ characters are present, and draws its own if they are missing.
+
+ --disable-broken-st disallow broken string-terminators],
+
+ Do not compile-in code that works around a bug in some ISDN routers
+ (and possibly other applications written by the same people): they
+ send an unterminated control string in their banner text, making xterm
+ freeze.
+
+ The workaround tells xterm to stop processing the control string when
+ it receives one of the whitespace control characters such as newline.
+ That was the behavior before patch #171.
+
+ See also --enable-broken-osc
+
+ --disable-c1-print disallow -k8 option for printable 128-159],
+
+ Use this option to suppress support for nonstandard use of codes
+ 128-159, which normally are considered control characters. Some users
+ have fonts which use those positions. The default value for the
+ allowC1Printable resource is false, so this feature does not impact
+ normal users.
+
+ --disable-color-class disable color class resources
+
+ Use this option to change most of the color resources to use Foreground
+ as the color class. This is the older (before patch #157) behavior
+ which has the drawback that setting the Foreground resource on most
+ platforms prevents use of color since the class is evaluated before
+ the instance.
+
+ --disable-color-mode disable default colorMode resource
+
+ Do not compile-in code that sets the default value of the colorMode
+ resource to ``true''.
+
+ --disable-desktop disable install of xterm desktop files
+
+ Do not install the xterm desktop files, used in menus.
+ These use the icons installed in the --with-icondir option.
+ Use the environment variable $DESKTOP_FLAGS to supply options
+ required by desktop-file-install.
+
+ Note: If desktop-utils is not found they will not be installed anyway.
+
+ --disable-doublechars disable support for double-size chars
+
+ Do not compile-in code that supports font-manipulation needed to
+ implement vt100-style double-sized characters.
+
+ --disable-echo test: display "compiling" commands
+
+ Modify the generated Makefile so that most compiler options are
+ not shown. This makes it simpler to read a build log and see the
+ actual warning messages.
+
+ --disable-fifo-lines enable FIFO-storage for saved-lines
+
+ With patch #244, xterm by default stores saved-lines in a FIFO
+ (circular buffer), which improves performance when the number of saved
+ lines is large. Disable this option to revert to the pre-244 layout.
+
+ --disable-freetype disable freetype library-support
+
+ Do not use freetype libraries if they are found. Normally they will
+ be used automatically.
+
+ --disable-full-tgetent disable check for termcap library
+
+ Do not look for the tgetent() function specifically in the termcap
+ library, accept the first library (from termlib, ncurses and curses)
+ which contains this function rather than continuing to search for
+ a termcap implementation rather than terminfo. The former would
+ supply the complete $TERMCAP data needed for some legacy programs.
+
+ --disable-highlighting disable support for color highlighting
+
+ Do not compile-in code that allows the selected region to be a
+ different color than the reverse of foreground/background colors.
+
+ See the discussion of highlightColor in the manual.
+
+ --disable-i18n disable internationalization
+
+ Do not compile-in code to handle multi-byte characters. This is
+ related to, but not identical with the input method logic.
+
+ --disable-imake disable use of imake for definitions
+
+ Do not attempt to use imake to determine compiler options.
+
+ The main.c file has many ifdef's which rely on obscure combinations
+ known only to imake. The configure script implements only a
+ portion of the tests needed to supplant imake.
+
+ --disable-initial-erase disable setup for stty erase
+
+ Do not compile-in code which aligns the stty erase and the backarrow
+ key. When compiled-in, xterm will optionally use the pty's sense
+ of stty erase and apply that to the backarrow mode (sending 8 or 127),
+ or go the other way, setting stty erase to match xterm's configuration.
+
+ --disable-input-method disable input-method
+
+ Do not compile-in code for "input method". This is an X11R6
+ feature which deals with translation of composite characters.
+
+ Some users report problems with their configuration, e.g., messages
+ stating that there is no input method defined for the given preedit
+ type. If you do not need input method (and are troubled by the
+ warning messages), it is safe to disable this option.
+
+ --disable-leaks test: set to test memory leaks
+
+ Compile-in code which frees memory which might confuse a leak-testing
+ tool. Normally these chunks of memory are retained as long as xterm
+ is running.
+
+ --disable-maximize disable actions for iconify/deiconify/maximize/restore
+
+ Do not compile-in code that implements runtime 'actions' for
+ iconifying, maximizing, etc.
+
+ Most users will find that the window manager is more suitable for
+ this sort of manipulation than putting the capabilities into xterm.
+
+ --disable-num-lock disable NumLock keypad support
+
+ Do not compile-in code that looks for the actual NumLock key to
+ support vt100/vt220 keypad translation.
+
+ This is used in xterm to simplify logic, and to workaround some
+ quirks of the keyboard tables. Use the ``numLock'' resource to
+ disable this feature if you must customize xterm in some other way.
+
+ (The same ifdef controls the metaSendsEscape support).
+
+ --disable-paste64 disable support for bracketed paste mode
+
+ Do not compile-in code to support experimental bracketed paste mode,
+ i.e., provide functions for setting/getting the selection data.
+
+ (see ctlseqs.ms description of OSC 52).
+
+ --disable-pty-handshake disable support for pty handshakes
+
+ This feature is used to ensure that the child process's terminal modes
+ match the parent's. In particular, it addresses a problem where the
+ terminal size is not defined in the stty settings.
+
+ --disable-rectangles disable VT420 rectangle support
+
+ Do not compile-in code to support VT420 rectangle control-sequences.
+
+ --disable-regex disable regular-expression selections
+
+ Do not compile-in code to support the "regex" option for multiple
+ mouse clicks.
+
+ --disable-rightbar disable right-scrollbar support
+
+ Do not compile-in code that supports a scrollbar on the right.
+
+ Left/right scrollbars are a matter of taste. Some older libraries
+ (e.g., X11R5) do not perform the geometry computation correctly,
+ leaving the right scrollbar incorrectly positioned after changing
+ the font size.
+
+ --disable-rpath-hack don't add rpath options for additional libraries
+
+ By default, the configure script looks for libraries in unusual places
+ and adds an rpath linker option to help.
+
+ --disable-samename disable check for redundant name-change
+
+ Do not compile-in code that suppresses redundant updates to the
+ titlebar when the text has not changed.
+
+ --disable-selection-ops disable selection operations
+
+ Do not compile-in code to support the actions which allow users
+ to bind keys that use the selection or extract data from the screen.
+
+ --disable-session-mgt enable support for session management
+
+ Do not compile-in code which adds simple session management hooks
+ which are used when closing an xterm. Normally the code is
+ compiled-in, except for systems which do not support it.
+
+ --disable-setgid disable setgid
+
+ Do not install xterm using setuid/setgid permissions. Drop setgid
+ permissions on startup.
+
+ --disable-setuid disable setuid
+
+ Do not install xterm using setuid/setgid permissions. Drop setuid
+ permissions on startup.
+
+ --disable-sun-fkeys
+
+ Do not compile-in code to support Sun-style function keys.
+
+ --disable-tcap-fkeys disable termcap function-keys
+
+ Do not compile-in code to support feature which allows xterm to use the
+ function-key definitions from the termcap/terminfo entry which it used
+ to set the $TERM variable on startup.
+
+ --disable-tcap-query disable termcap query/report
+
+ Do not compile-in code to support DCS '+' control sequence, which
+ allows an application to ask xterm what control sequences it would
+ transmit for specified function keys, given the termcap or terminfo
+ names.
+
+ --disable-tek4014 disable tek4014 emulation
+
+ Do not compile-in code to support Tektronix 4014 emulation.
+
+ This reduces the executable size by 17% (checked 1999/3/13).
+
+ Some people use the Tektronix emulation (which has been in xterm
+ for many years) as an example of code bloat, though this is not an
+ accurate impression.
+
+ --disable-vt52 disable VT52 emulation
+
+ Do not compile-in code to support vt52 emulation.
+
+ A genuine vt100 emulates a vt52.
+
+ --disable-ziconbeep disable -ziconbeep option
+
+ Do not compile-in code that modifies the icon's title and sounds a
+ beep when they receive output.
+
+ --enable-16bit-chars enable 16-bit characters support
+
+ Enable wide-character support, but store only 16-bits for each wide
+ character. Unicode values can be larger than 16-bits, up to 21-bits.
+ This uses less memory, but is less complete. However, most languages
+ are covered by the 16-bit encoding.
+
+ --enable-256-color enable 256-color support
+
+ Compile-in code that interprets SGR 38 and 48 for 256-colors.
+
+ --enable-88-color enable 88-color support
+
+ Compile-in code that interprets SGR 38 and 48 for 88-colors.
+
+ --enable-alt-sends-esc set default altSendsEscape resource (default: no)
+
+ This sets the default resource value, which is shown in the manpage.
+
+ --enable-backarrow-is-del set default backarrowKey resource (default: true)
+
+ This sets the default resource value, which is shown in the manpage.
+
+ --enable-backarrow-is-erase set default backarrowKeyIsErase resource (default: false)
+
+ This sets the default resource value, which is shown in the manpage.
+
+ --enable-broken-osc allow broken Linux OSC-strings],
+
+ Compile-in code to accommodate scripts that write Linux's malformed
+ palette control strings without checking. The result makes xterm
+ appear to freeze. This workaround makes xterm ignore the strings,
+ and is compiled-in by default for Linux.
+
+ --enable-dabbrev enable dynamic-abbreviation support
+
+ Compile-in support for "dabbrev-expand()" action and related key
+ translation.
+
+ --enable-dec-locator enable DECterm Locator support
+ Add support for DEC Locator control sequences for xterm:
+
+ DECEFR - Enable Filter Rectangle
+ DECELR - Enable Locator Reports
+ DECSLE - Select Locator Events
+ DECRQLP - Request Locator Position
+
+ This allows the xterm mouse to be used with applications that use the
+ DEC Locator sequences, such as VAX Tpu, or SMG$ based applications.
+
+ --enable-delete-is-del set default deleteIsDEL resource (default: maybe)
+
+ This sets the default resource value, which is shown in the manpage.
+
+ --enable-exec-xterm enable "spawn-new-terminal" action
+
+ If your platform supports the process filesystem "cwd" link,
+ compile-in support for the "spawn-new-terminal" action, which
+ allows you to define a key translation that runs a new xterm
+ using the same working directory as the current process within
+ xterm.
+
+ --enable-hp-fkeys enable support for HP-style function keys
+
+ Compile-in code to support HP-style function keys.
+
+ --enable-load-vt-fonts enable load-vt-fonts() action
+
+ Compile-in code that allows user to define load different VT-font
+ definitions at runtime.
+
+ --enable-logfile-exec enable exec'd logfile filter
+
+ Compile-in code that allows logging piped via an external filter.
+
+ --enable-logging enable logging
+
+ Compile-in code that allows logging.
+
+ Logging was disabled in X11R5 xterm because of security problems.
+ They were addressed in X11R6, but the feature was not reinstated.
+
+ --enable-luit enable support for luit filter (Unicode translation)
+
+ Luit is a filter that can be run between an arbitrary application and a
+ UTF-8 terminal emulator. It will convert application output from the
+ locale's encoding into UTF-8, and convert terminal input from UTF-8
+ into the locale's encoding.
+
+ This sets "--enable-wide-chars" as a side-effect.
+
+ --enable-meta-sends-esc set default metaSendsEscape resource (default: no)
+
+ This sets the default resource value, which is shown in the manpage.
+
+ --enable-mini-luit enable support for poor man's luit filter (Latin-9)
+
+ Provide built-in support for Latin-9, relying on having specified
+ Unicode (ISO10646) fonts and setting the locale resource to "checkfont".
+
+ This sets "--enable-luit" as a side-effect.
+
+ --enable-narrowproto enable narrow prototypes for X libraries
+
+ Originally xterm was built using imake rather than a configure script.
+ One feature of imake that is not possible to guess within the
+ configure script is the wide-prototype compile-time definition
+ NARROWPROTO. When this is not set properly, the Athena widget
+ scrollbars do not work properly. xterm's configure script has a
+ fallback case which allows disabling imake. However, this is moot
+ with the X.org "modular" build, whose compiler options are unrelated to
+ imake or older versions of any libraries that it may distribute. In
+ this case, the configure script needs some help. Use this option to
+ enable or disable NARROW proto (and disable imake with the
+ --disable-imake option) to match the whims of X.org hackers.
+
+ For instance
+
+ configure --disable-imake --disable-narrowproto
+
+ --enable-readline-mouse enable support for mouse in readline applications
+
+ Compile-in code to support experimental bracketed paste mode, i.e.,
+ provide functions for setting/getting the selection data. Essentially
+ this puts xterm into a mode that sends special function-key strings to
+ bracket the data.
+
+ (See --enable-paste64, which fits xterm's protocol better).
+
+ --enable-sco-fkeys enable support for SCO-style function keys
+
+ Compile-in code to support SCO-style function keys.
+
+ --enable-sun-fkeys enable support for Sun-style function keys
+
+ Compile-in code to support Sun-style function keys.
+
+ --enable-toolbar enable pulldown menus on toolbar
+
+ Compile-in code that builds a toolbar with pulldown menus. The
+ normal popup menus are still available.
+
+ This is an experimental option. As of patch #206, it is known to
+ work well with fvwm, but not as well with some other window managers,
+ e.g., KDE's Kwin and IceWM.
+
+ In addition to isolated layout problems, it is reported that some
+ flavors of the Athena widget library perform badly with ISO-10646
+ fonts. You can work around those by setting the menu fonts to
+ an ISO-8859 variant in your X resources.
+
+ --enable-trace test: set to enable debugging traces
+
+ Compile-in code to trace xterm's internal states.
+
+ This is a debugging feature. It causes xterm to produce two files
+ (Trace-parent.out and Trace-child.out).
+
+ --enable-warnings test: turn on GCC compiler warnings
+
+ Modify the generate Makefile to turn on gcc compiler warnings.
+
+ I use this option regularly, and correct all but a few (difficult)
+ problems.
+
+ --enable-wide-chars enable wide-character support
+
+ Compile-in code that supports 16-bit characters. Includes support
+ for UTF-8.
+
+ --enable-xmc-glitch test: enable xmc magic-cookie emulation
+
+ Compile-in code that simulates the terminfo "magic cookie" glitch.
+
+ This is for testing ncurses.
+
+ --with-Xaw3d link with Xaw 3d library
+
+ Look for, compile and link with the Xaw 3d widget library.
+
+ --with-XawPlus link with Athena-Plus library
+
+ Look for, compile and link with the Xaw Plus widget library.
+
+ --with-app-class=XXX X resource class (default: XTerm)
+
+ Rename the X resource class, e.g., for packaging a development version
+ of xterm with different result names.
+
+ --with-app-defaults=DIR directory in which to install resource files (default: EPREFIX/lib/X11/app-defaults)
+
+ autoconf scripts assume that all of the files should be installed
+ under the same top-level directory. But X applications defaults
+ must be installed into a special directory, e.g.,
+
+ /usr/X11/lib/app-defaults
+
+ However, there is no standard for this pathname. The manual page
+ for X notes that the environment variable $XUSERFILESEARCHPATH can
+ specify a list of places where X searches for applications defaults.
+ Also, it may look in $XAPPLRESDIR, but that usually is not related
+ to where xterm might be installed. To keep it simple, the configure
+ script uses
+
+ EPREFIX/lib/X11/app-defaults
+
+ as the default (EPREFIX is --prefix). That makes it work normally
+ for most systems if --prefix is /usr. For other installs, e.g., to
+ /usr/local, you should use this option to customize the location to
+ match your system configuration.
+
+ Use --with-app-defaults=auto to ask the configure script to look in
+ a list of well-known locations for an existing directory.
+
+ Use --without-app-defaults or --with-app-defaults=no to disable the
+ feature.
+
+ --with-desktop-category=XXX one or more desktop catgories or auto
+ This is a list of names. The configure script maps blanks and commas
+ to semicolons (";") which are used by the desktop utils as a separator.
+
+ The default value "auto" tells the configure script to look
+ at existing ".desktop" files for xterm and common terminal
+ emulators, to use those.
+
+ --with-freetype-config configure script to use for FreeType
+
+ Use a specific option value to tell the configure script to try
+ just one of the variations:
+
+ "pkg*", e.g., pkg-config or pkgconfig uses whatever pkg-config
+ script was found.
+
+ otherwise, the parameter value is used as the name of the script
+ to try, using --cflags and --libs options.
+
+ Use --without-freetype-config to enable the --with-freetype-cflags
+ and --with-freetype-libs options.
+
+ The default value "auto" tells the configure script to try the
+ pkg-config script first, then freetype-config and finally xft-config.
+
+ --with-freetype-cflags -D/-I options for compiling with FreeType library
+
+ Override options provided by xft-config or freetype-config.
+
+ --with-freetype-libs -L/-l options for linking with FreeType library
+
+ Override options provided by xft-config or freetype-config.
+
+ --with-icondir=DIR directory in which to install icon files (default: no)
+
+ The X libraries may automatically search these locations:
+
+ $HOME/.icons
+ $XDG_DATA_DIRS/icons
+ /usr/share/pixmaps
+
+ Alternatively, the last may be actually
+ /usr/X11R6/share/pixmaps
+
+ Use --with-icondir=auto to tell the configure script to search for
+ an existing directory from its list of well-known system locations.
+
+ See also
+ http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html
+ http://www.freedesktop.org/software/icon-theme/
+
+ By default, the option is disabled; it is useful only for the
+ --with-icon-theme option.
+
+ --with-icon-theme=XXX install icons into desktop theme (hicolor)
+
+ Install png and svg icons into the given desktop theme and customize
+ the .desktop files to use that theme. If no theme name is given,
+ the default is "hicolor". If this option is not given, the desktop
+ file will use the pixmap files.
+
+ --with-neXtaw link with neXT Athena library
+
+ Look for, compile and link with the neXT Athena widget library.
+
+ --with-own-terminfo=P set default $TERMINFO (default: from environment)
+
+ Modify the generated Makefile to set the target for the 'install-ti'
+ rule to point to the given directory.
+
+ If you have the $TERMINFO variable defined in your environment, the
+ configure script will use that value. If no option and no variable
+ are are given, the configure script uses /usr/lib/terminfo, if it
+ exists.
+
+ You do not have to run "make install-ti", if there is already a
+ workable terminfo description. Be advised, however, that the
+ common variety of "xterm-color" is not suited for xterm, but is
+ directed to other variations (such as nxterm) which do not
+ support the background-color erase capability.
+
+ --with-pcre use PCRE for regular-expressions
+
+ If regular expressions are not disable (--disable-regex), use PCRE
+ rather than the POSIX regular expressions.
+
+ --with-pkg-config{=path} enable/disable use of pkg-config
+
+ The configure script looks for certain libraries which have well
+ established pkg-config scripts, and will use those settings if
+ available. Not all pkg-config scripts work; this option suppresses
+ the check and relies on normal library search paths.
+
+ --with-reference=XXX program to use as permissions-reference
+
+ To install xterm with setuid permissions, the scripts usually compare
+ it with a previous install. That works well for individual
+ maintainers, but can be a problem for packagers who may be
+ cross-compiling, etc. This option lets the package builder specify
+ the file used for permissions reference.
+
+ --with-setuid=XXX use the given setuid user
+
+ Install xterm setuid'd to the given user. If no parameter value
+ is given, assume it is root.
+
+ See also --with-utmp-setgid and --with-utempter, which manipulate
+ the setgid group.
+
+ --with-tty-group=XXX use XXX for the tty-group
+
+ If xterm is installed setuid'd to root, change the group of the tty
+ device to the given value on startup. Three cases are possible:
+
+ a) If this option is not given, the configure script will attempt to
+ find a suitable value (usually "tty"), and verify that it exists in
+ the group database.
+
+ b) If the option value is given, it will use the value even if it does
+ not exist in the group database (allowing packagers to work about
+ deficient environments).
+
+ c) If the option is disabled, e.g., --without-tty-group, the
+ permissions change will use the group-id of the process.
+
+ If xterm is not installed setuid'd to root, this option is not needed,
+ since it cannot change the tty device's ownership.
+
+ --with-xterm-symlink=XXX make symbolic link to installed xterm
+
+ If any of the configure options to modify the program name i.e.,
+ --program-prefix, --program-suffix or --program-transform-name
+ are given, this option allows the makefile to create a symbolic link,
+ e.g., to "xterm" on install. The option value gives the name for
+ the link, which defaults to "xterm".
+
+ Use --without-xterm-symlink to disable a link to "xterm" if none
+ is wanted.
+
+ --with-terminal-id[=V] set default decTerminalID (default: vt100)
+
+ Set the default emulation level.
+
+ DEC terminals vt52/vt100/vt220/etc form a series where succeeding
+ models emulate features of the older terminals. While most
+ features of these terminals are recognized by xterm at all levels,
+ a few behave differently according to the emulation level.
+
+ You can always override this with the command-line option "-ti".
+
+ --with-terminal-type=T set default $TERM (default: xterm)
+
+ Set the default value for $TERM. Xterm supports legacy termcap
+ applications by constructing a modified version of the $TERMCAP
+ variable at initialization, which supplies the resulting screen
+ size. It also sets $TERM, if not already set, for use by programs
+ running within xterm.
+
+ The default value "xterm", can be overridden to avoid conflict
+ with older versions of xterm, e.g., those that do not implement
+ vt220 emulation.
+
+ You can always override this with the command-line option "-tn".
+
+ --with-utempter use utempter library for access to utmp
+
+ The utempter library is a set-uid wrapper for the utmp facility.
+ On systems with Unix98 pty's, xterm can use this library when
+ available so it need not be installed set-uid.
+
+ --with-utmp-setgid=XXX use setgid for access to utmp
+
+ The option value specifies a group to use when installing.
+ xterm will be installed with setgid privilege to this group.
+ At runtime, xterm will drop the setuid privilege immediately
+ after opening the pseudo-terminal, and will have only the
+ group privilege needed to access the utmp file. This relies
+ on having POSIX setuid behavior.
+
+-- vile:txtmode