Patch #246 - 2009/8/16
* remove obsolete logic for saving/restoring wrapping flags, which did not
work on 64-bit platform. Wrapping flags (stored in the line-index) are now
copied with line-data (Debian #541160).
* modify comments in app-defaults files to avoid problem with C preprocessor
used by xrdb (Debian #541603).
* restore special case in makeColorPair, needed for colorBDMode resource
(Debian #541089).
* correct SetLineFlags() macro, broken in patch #244 when recoding to avoid
gcc-specific bitfields (Debian #541236).
* modify initialization of screen buffers to ensure that pointers align to
int-boundaries. This fixes a problem introduced in patch #244 where the
color- and character-arrays (stored after the video-attributes in each
row) might be misaligned (report by Rajeev V Pillai).
* add limit-check in ScrnRefresh for handling saved-lines from the circular
buffer which are repainted on a screen whose width has increased. To
improve performance, circular buffer entries are not resized (report by
Rajeev V Pillai).
* correct type for CellColor (a late change in patch #244 to avoid gcc-
specifc enums made that unsigned rather than unsigned short, for the
256-color option).
* fix typo in configure option --enable-16bit-chars (report by Rajeev V.
Pillai).
Patch #245 - 2009/8/12
* correct a special case in saving FIFO-lines from patch #244. If the screen
was shrunk, xterm used the wrong amount for copying to FIFO-lines, and
then used this amount to adjust the current row on the screen. That was
both a visible defect (Debian #541109) as well as a potential addressing
error (Debian #541132, #541160, and #541236).
* add clarification in xterm manual about the various allowXXXOps resources,
which are disabled when the allowSendEvents resource is active (patch by
Julien Cristau, Debian #531597).
Patch #244 - 2009/8/9
* refactored storage of saved-lines, providing a configure option to manage
them as a FIFO (actually a circular buffer), improving performance. Added
configure option --enable-fifo-lines to enable/disable the new feature (it
is enabled by default).
* added fastScroll resource, to amuse people who measure terminal emulator
performance by cat'ing large files to the screen.
* modify check in readPtyData from return values to provide exit on zero-
bytes read from pty for FreeBSD, or eliminate high-CPU in "xterm-hold"
processing (discussion with Ulrich Spoerlein, FreeBSD ports/136686). The
check was originally modified to combine negative/zero values in
XFree86-3.1.2E, 1996/05/06.
* add configure option --enable-16bit-chars to provide wide-characters with
16-bits (rather than the default 32-bits).
* add retryInputMethod resource to allow configuring out the retries xterm
uses to connect to non-responsive XIM server, to work around defective X
configurations as noted in NetBSD mailing list.
http://mail-index.netbsd.org/tech-x11/2009/06/07/msg000511.html
* make regular-expression selection work for VT100 double-sized characters.
* improve layout when drawing missing characters in a proportional font,
e.g., as boxes, to take into account whether they are double-width
(report by Guilbert Stabilo on comp.unix.shell).
* add capability for keypad-center (kb2/KA2) to termcap entry for xterm-new,
as well as xterm-8bit, xterm-sun and xterm-vt220 (FreeBSD conf/136336).
* change default for keepSelection resource to true (prompted by discussion
with David Muir Sharnoff).
* remove a limit-check in ptydata.c, allowing Unicode values past 64k to be
displayed using TrueType fonts (Debian #458432).
* remove a vt52-specific ifdef to allow mapping F1-F4 to PF1-PF4 when vt52
support is not compiled (report by Olaf 'Rhialto' Seibert).
* save/restore line-wrapping flags when converting from ISO-8859-1 encoding
to UTF-8 encoding, as well as when resizing screen.
* remove extra adjustment of position in fix for Debian #418324.
* modify default check for mkWidth resource to check for line-drawing
characters, which are categorized as double-width in Solaris 10 (report by
Sebastian Kayser).
* add "print-everything" action (patch by Ovidiu Gheorghioiu).
* start refactoring scrollback data using new getLineData() function.
* demote recent change to Debian #252873 fix to experimental, ifdef'd out as
EXP_BOGUS_FG (Debian #522141).
* work around groff mapping of ASCII quotes using macros (requested by
Reuben Thomas based on Colin Watson advice, fixes Debian #378700).
* correct symbol used for default of allowWindowOps which was DEF_ALLOW_FONT
rather than DEF_ALLOW_WINDOW (report by Matthieu Herrb).
* amend fix for tek4014 from patch #243 to make it only apply to the Tek
Options menu.
Shared directories can now be created independently by the pacakges
needing them and will be removed automatically by pkg_delete when empty.
Packages needing empty directories can use the @pkgdir command in PLIST.
Discussed and ok'd in thread starting at
http://mail-index.netbsd.org/tech-pkg/2009/06/30/msg003546.html
Patch #243 - 2009/3/28
* revert change to default for allowTcapOps (request by Bram Moolenaar).
* reallocate result returned by xtermEnvLocale() to avoid reference to freed
memory after handling menuLocale resource.
* fix an old (X11R5) bug in tek4014 for switching fontsizes.
* add resource defaultString to make configurable the use of "#" when pastes
of UTF-8 text fail due to limitations in the current locale settings.
* make the set of selection target Atom's configurable by two new resources
eightBitSelectTypes and utf8SelectTypes, e.g., to use the TEXT Atom in
preference to UTF8_STRING (discussion with Stanislav Sedov regarding
koi8rxterm and the FreeBSD port).
* modify handling of TARGETS Atom by making it return exactly the set of
targets as those which xterm is currently providing.
* set MANPAGER and PAGER explicitly to /bin/cat in minstall.sh to work around
/etc/man.conf's with those variables already set
* improve error-checking of tcap-query parser.
* add check for keyboard tcap), which ensures that terminal descriptions
containing the same string for shifted/unshifted keys will be seen by
tcap-query as only the unshifted key. (This would only happen with an
incorrect terminal description).
* fix conversion for input event-state to modifier-parameter which made
tcap-query feature not work with tcapFunctionKeys (keyboard type tcap).
* add "DEF_ALLOW_XXX" definitions to main.h to allow overriding the
default compiled-in values for "allowxxx" resources.
* remove check on bell-percentage added in patch #242, which disallowed
zero/negative values (Redhat Bugzilla #487829).
Patch #242 - 2009/2/15
* fix configure check for XkbBell and provide appropriate parameter for it.
* fix a caching problem with double-size fonts versus reverse video that could
cause core dump.
* repair double-size fonts from workaround used in patch #240.
* add new section to the VT Fonts menu which allows enabling or disabling the
font, termcap (tcap-query), title and window operations.
* add fontWarnings resource, to control whether to show warnings on failure to
load a font.
* improve warnings for unloadable fonts introduced in patch #240 by limiting
those to the cases where a font would be specified directly by a resource
setting rather than a derived fontname.
* further amend fix for Debian #252873 from patch #197 to treat a blank cell
which does not have both foreground and background colored as a non-colored
cell. This improves a special case where the cursor is on a blank cell which
had foreground color scrolled in (report by Miroslav Lichvar).
Also add the same logic when hiding cursor, so the outline matches the
in-focus cursor.
* modify internals to reduce places PAIRED_CHARS() is used, making WriteText()
and ScrnWriteText() accept IChar array, as well as providing a wrapper for
drawXtermText().
* change default XIM font from "*" to "fixed" to improve startup time in
zh_CN.UTF-8 locale (Mike Fabian, SuSE Bugzilla #464930).
* typo in #240 log (Slava Semushin)
Patch #241 - 2009/1/26
* improve checks for missing bitmap fonts, fallback to "fixed" as needed to
work around broken font-packages (report by Jacek Luczak).
* fix breakage from patch #240 changes for xtermAddInput() (patches by
Jeff Chua, Julien Cristau).
Patch #240 - 2009/1/25
* use plink.sh for linking xterm (suggested by Larry Doolittle).
* add resource descriptions for input method to xterm manpage.
* update configure script; consistently append to $CFLAGS rather than prepend.
* add install-scripts rule to makefile, to allow koi8rxterm and uxterm scripts
to be altered independently of install-bin
* add -maximized command-line option and corresponding resource (prompted by
alt.os.linux newsgroup comment).
* modify translations of scrollbar widget using xtermAddInput() (see
patch #181) to accept the actions that the vt100 widget accepts, such as
shift-insert to perform a paste operation (request by Martin Zwickel).
* change default for allowTcapsOpS resource to false, since it causes
unexpected behavior for vim users with AltGr.
* update config.guess, config.sub
Patch #238 - 2008/12/30
* update configure macro CF_XOPEN_SOURCE for AIX 6.x and Mint platforms.
* reset the screen wrapping-flag at the end of ClearRight to fix an occasional
case where the last character of a scrolled and wrapped line would be cleared
(patch by Joe Peterson).
* modify to use POSIX coding for comparing resource settings such as locale,
to work with locales such as Turkish (report by M Vefa Bicakci).
* turn on configure paste64 feature by default (request by
Jean-Philippe Bernardy). It is runtime enabled/disabled with allowWindowOps.
* turn on configure tcap-query feature by default, add resource allowTcapOps
to make this runtime enabled/disabled.
* make OSC 3 (change X property, from patch #110) subject to allowWindowOps
resource.
* make VT220 DSR responses inactive in VT100-mode.
* make DECUDK feature inactive in VT100-mode.
* respond to incorrectly formatted DECRQSS with a cancel.
* add allowFontOps resource to allow the fontsize-switching and font query/set
control sequences to be enabled/disabled (prompted by Debian #510030).
* some code cleanup based on gcc 4.x -Wconversion warnings in button.c and
charproc.c
* modify tcap-query feature to not return data for shifted cursor-keys when
the keyboard type is set to vt220, since returning the same string for
shifted/unshifted keys may confuse some applications (GenToo #212546).
bug fixes, including the problems with resizing the terminal
with certain applications (second item listed here).
Patch #237 - 2008/09/14
* improve usability of TrueType fonts by making the font-size switching
for shifted keypad plus/minus use the faceSize resources to determine
the order of fonts (when TrueType fonts are used) rather than the
bitmap fonts, since their sizes may not be in the same order (report
by H Merijn Brand)
* remove an optimization of ConfigureNotify events from patch #236 which
seems to interfere with passing SIGWINCH to applications (GenToo
#233836).
* modify handling of altSendsEscape to reset the eightBitInput mode,
like metaSendsEscape (patch by Ted Phelps).
* add feature to show the text-cursor as an underline rather than a box,
plus command-line options -uc and +uc and resource cursorUnderLine to
control the feature (patch by Paul Lampert).
* update config.guess, config.sub
Patch #236 - 2008/07/27
* correct memory reallocation when handling a paste of UTF-8 text from
patch #225 changes (report/patch by Max Mikhanosha).
* correct allocation of temporary buffer in xtermFindShell in case the
user's $PATH contains no ":" (report/analysis by Victor Stinner,
Freedesktop.Org Bugzilla #16790).
* modify CF_XOPEN_SOURCE to add case for DragonFly BSD, to fix new
compile problem exposed by fix for fd_mask (patch by Hasso Tepper).
* add configure-check for ncurses use_extended_names, (report by
Martin Mokrejs).
* correct computation for toolbar height; layout manager already takes
into account borderWidth resource.
* implement VT320-style SCS (select character set) for ISO Latin-1
supplemental.
* fixes for vt100-style character sets in UTF-8 mode (Ubuntu #230919).
* fix to make luit work with xterm's -ls option (report/patch by
Marius Tolzmann).
* update config.guess, config.sub
Changes within pkgsrc:
- Remove most options, as I see no reason not just to build them in
by default (they shouldn't be intrusive). I also enabled a few
features that weren't there before (mouse support for readline
applications, support for the mini/built-in luit, paste64, etc.).
- Build-in the toolbar by default. I patched xterm to disable the
toolBar resource by default.
- Include xaw.buildlink3.mk instead of libXaw/buildlink3.mk and
add some code to configure xterm properly according to the
user's preference.
- Use @unexec ${RMDIR} ... when attempting to remove
lib/X11/app-defaults.
- Install xterm.desktop and uxterm.desktop to share/applications
(I don't think this needs desktopdb.mk).
- Added a 'debug' option which builds in support for event tracing.
Also, if PKG_DEVELOPER=yes, tell configure to --enable-warnings.
Patch #235 - 2008/04/20
* add control sequences for some of the recent resource/menu settings:
* altSendsEscape (private mode 1039)
* keepSelection (private mode 1040)
* selectToClipboard (private mode 1041)
* bellIsUrgent (private mode 1042)
* popOnBell (private mode 1043)
* add resource formatOtherKeys to provide an alternate escape sequence
format for the modifyOtherKeys resource (request by Paul LeoNerd
Evans).
* adjust saved-cursor position if the window is resized while
displaying the alternate screen (Novell #196880, Debian #383384).
* improve pointer-checks to fix a bug exposed by resizing during
initialization under StumpWM window manager (Fedora Bugzilla #437928).
* modify unselectwindow() to ensure that the mouse pointer is not
hidden after xterm loses focus (report by Jeremy Huddleston).
* add special check for fd_mask on Mac OS X (report by Jeremy
Huddleston).
* add dylib to autoconf's suffix list used for checking the result
from xmkmf, to work with Mac OS X (report by Jeremy Huddleston).
* correct initialization of bold- and wide-, wide-bold fonts which may
be set via the utf8Fonts subresource (Debian #347790).
Patch #234 - 2008/03/02
* modify sinstall.sh to use POSIX locale to bypass GNU ls changes to
date-format.
* improved/refined changes for closing bitmap font (patch by Andrea
Odetti).
* improve resize computation for situations where the negotiation
fails, by invoking the xterm widget's core-class resize method
(Debian #365602, patch by Jim Paris).
* restore initialization of terminal's VMIN and VTIME settings, from
patch #232 changes (patch by Matthieu Herrb).
Patch #233 - 2008/02/24
* add configure check for ttydefaults.h, include if needed, e.g., for
systems where defining _POSIX_C_SOURCE, etc., prevents it from being
included via termios.h (prompted by comments by Robert Delius Royar
and Jeremy Huddleston).
* patches from Alan Coopersmith. These correspond to bug-ids on
bugs.opensolaris.org
4029911
fix a typo in manpage
4045962
xterm doesn't properly set ut_syslen
4192572
left-left-right misinterpreted as triple click
* minor optimization to tab-initialization (patch by Nemeth Marton).
* fix a case where an incorrect font was freed during initialization
from patch #232 changes (patch by Andrea Odetti).
* improve comparison used in SameFont function for GC-caching (Julien
Cristau).
* correct macro name used for default CKILL definition to work with
Mac OS X (report by Jeremy Huddleston).
Patch #232 - 2008/01/30
* corrected logic in a font-cache used for reverse-video (Debian
#404079).
* add control sequence to alter pointerMode at runtime.
* add limit-checks for rectangle operation parameters (report by
Martin Pirker).
* modify minstall.sh to suppress $MANPAGER and $PAGER environment
variables, which may interfere with redirecting output of man to a
shell variable (report/patch by Zdenek Sekera).
* do not try to hide mouse pointer in the tek4014 window, fixes broken
"-t" option at startup from patch #230 changes (report by Robert K.
Nelson).
* correct datatype used when drawing tek4014 data using xterm compiled
for wide-characters, on big-endian machines (reports by Jeremy
Huddleston, Harald Hanche-Olsen, Martin Costabel, Merle Reinhart).
* modify to cache the font-names along with the bitmap font data, to
improve comparison of fonts.
* modify to allow building with configure options --disable-ansi-color
and --disable-leaks (Debian #459817, report/patch by Nemeth Marton).
* modify to allow building with configure options --enable-wide-chars
and --disable-c1-print (Debian #459816, report/patch by Nemeth
Marton).
* add pointerMode resource to control whether and when the pointer
cursor is hidden as the user types.
* simplify initialization of ttyMode- and related characters using a
table.
* modify initialization-logic for stty values that correspond to
ltchars structure and the BSD TIOCSLTC ioctl (susp, dsusp, rprnt
flush, werase, lnext). These were reset to constants for both
termios and legacy interfaces immediately after asking the system
for the existing values since X11R6.1, rather than using them to
provide inherited values. While the legacy interface has some
constraints, e.g., on HPUX, the POSIX or termios interface should
not. Your shell may reset these anyway (prompted by patch by Ed
Schouten).
* improve logic for hiding/displaying pointer-cursor (report by Mark
Brukhartz).
* add limit-checks to tabs.c, increase maximum column for setting
tab-stops from 320 to 1024 (report by Nemeth Marton).
* correct length, i.e., number of types of selection targets, computed
by ConvertSelection() when not handling wide characters for the
XA_TARGETS() case. This leaves an extra Atom on the end of the list
which is not handled by Java applications. The problem was introduced
in patch #151 (report by David Wood).
NOTE: I am going to again re-enable the xterm-toolbar option by default,
as there have been some fixes with font handling. If anyone notices
any problems with this, please file a PR or email the pkgsrc lists.
Thanks.
ChangeLog:
Patch #231 - 2008/01/05
* undo change to getXtermCell() from patch #230 using PACK_PAIR macro
(Debian #459014, analysis by Caetano Jimenez Carezzato).
* minor documentation fixes (patch by Slava Semushin)
* add makefile actions to install KOI8RXTerm app-defaults file
(patch by Julien Cristau).
Patch #230 - 2007/12/31
* add quietGrab resource, which when true, suppresses cursor
repainting
when NotifyGrab and NotifyUngrab event types are received during
change of focus (request by Nicolas George).
* do not treat Unicode BIDI control characters as combining characters
(Debian #457634).
* add koi8rxterm, from Debian.
* add manpage for uxterm, from Debian (Ubuntu #128136, Debian #438645)
* remove ".xpm" suffixes from Icon filenames in desktop files since it
confuses some lookups following the Icon Theme Specification (report
by Slava Semushin)
* correct width-calculation used for adjusting proportional fonts, to
work with wide-characters (Debian #441354).
* fixes/improvements for double-size characters:
* correct old clipping calculation which used total height of
glyphs where ascent was needed.
* if bold font is unavailable, fall back to normal font
* adjust to "work" with Xft (which does not support double-width
single-height characters).
* restore reset of doublesize for a line when it is cleared,
broken in patch #228.
* modify logic for forceBoxChars resource when using TrueType fonts
to be consistent with bitmap fonts
* modify logic for forceBoxChars resource to make the "Line-Drawing
Characters" menu entry use xterm's line-drawing characters even
asked to draw wide line-drawing characters which are available in
the font.
* modify rectangle-support functions to preserve colors when
filling/erasing (request by Enzo Toscano, to match WRQ Reflection
behavior).
* add getopt-parsing to tcapquery.pl, including feature to test the
extended cursor/editing keys.
* make missing double-width glyphs display as double-width (Debian
#456236).
* change tcap-fkeys and rectangles configure options to enable them
by default.
* hide the mouse pointer while user is typing (request by Rodolfo
Borges).
* extend configure options --enable-tcap-query and
--enable-tcap-fkeys to send cursor- and editing-keypad keys
modified according to the keyboard (or termcap) selection for
shift, alt, control, meta.
* modify kdch1 in termcap, e.g., xterm-r6 to match the terminfo file.
* add -hm option to turn highlightColorMode on or off.
* add highlightColorMode resource to separate the new
(since patch #225)
highlighting with both text- and background-colors (prompted by
report/example by Thomas Wolff).
* add Keep Selection menu entry to turn the keepSelection resource
on/off at runtime.
* add keepSelection resource, which when enabled, tells xterm to
retain the X selection even after it stops highlighting it
(patch by Sergey Vlasov).
* extend the CSI > n sequence to allow disabling all types of
modified-keys that the CSI > m sequence affects.
* move include for <xtermcap.h> in resize.c to avoid redefinition of
termios structure on OpenSolaris (report by Rahul Gopinathan Nair).
* extend terminfo building blocks for modified editing keys to
include all six keys.
* synchronize terminfo with ncurses (report by Stephane Chazelas):
* equate xterm-xfree86 and xterm-xf86-v44.
* add ncurses extensions OTbs, AX, for termcap conversions.
* make old/legacy entries such as xterm-24, xterm-65 and aliases
xterms, vs100 inherit from xterm-old.
* make xterm-r5 and xterm-r6 the same, ignoring historical
errors in X Consortium's version.
* fix an ifdef in logic for selecting regular expressions while in a
narrow-character locale (Debian #449227).
The INSTALL.openwin is broken.
I reported on December 1 that it create a broken INSTALL script.
The SunOS check was commented out in pkgsrc/x11/xterm/Makefile revision
1.37. It looks like it was accidently committed as it has nothing to do
with the log message.
This caused the INSTALL.openwin stuff to be used on non-SunOS systems.
That INSTALL.openwin support is broken anyways. The sed changed @PREFIX@
but that was not used.
This function does not exist AFAIK in our pcre libraries, and the configure
check was failing.
A segment of nm output reads:
/usr/pkg/lib/libpcreposix.so:00000a06 T regcomp
/usr/pkg/lib/libpcreposix.so:00000abf T regerror
/usr/pkg/lib/libpcreposix.so:000007a8 T regexec
/usr/pkg/lib/libpcreposix.so:00000780 T regfree
These symbols will override those in libc:
/usr/lib/libc.so:00031be8 T _regcomp
/usr/lib/libc.so:0002fbf8 T _regerror
/usr/lib/libc.so:0002e9c2 T _regexec
/usr/lib/libc.so:0006336c T _regfree
/usr/lib/libc.so:00031be8 W regcomp
/usr/lib/libc.so:0002fbf8 W regerror
/usr/lib/libc.so:0002e9c2 W regexec
/usr/lib/libc.so:0006336c W regfree
${WRKSRC}/xterm.log.html. Additionally, the pkgsrc-specific
changes are:
-- Add an "xterm-toolbar" option and add it to PKG_DEFAULT_OPTIONS. Now
we may all enjoy pull-down menus.
-- In the ${X11_TYPE} == "modular" case, add --disable-imake and
--enable-narrowproto to CONFIGURE_ARGS. The latter fixes [possible]
problems with Xaw scrollbars.
-- Add USE_DIRS+=xdg-1.4 to handle newly-provided xterm pixmaps.
-- Add build-time dependency on x11/libxkbfile to pull in XKB extension
headers, e.g. ${X11BASE}/include/X11/extensions/XKBbells.h. The XKB
bell extension should now be properly detected and supported.
- Add "pcre" option, thereby supporting devel/pcre as xterm's regex
library.
Changes ok'd (more or less) by joerg@ and tested by me. For more detail
wrt: rationale for --enable-narrowproto and/or libxkbfile dependency,
please contact me.
packages with the modular Xorg equivalent. Those are falling back
to the old location by default, so this commmit doesn't change
dependencies.
graphics/xpm ==> x11/libXpm
fonts/Xft2 ==> x11/libXft
x11/Xfixes ==> x11/libXfixes
x11/xcursor ==> x11/libXcursor
x11/Xrender ==> x11/libXrender
x11/Xrandr ==> libXrandr
developer is officially maintaining the package.
The rationale for changing this from "tech-pkg" to "pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list). Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.
The changes are detailed at
http://dickey.his.com/xterm/xterm.log.html
Some of the changes include:
* for FreeBSD, drop setuid privileges after startup (XFree86 Bugzilla
#878, report/patch by Alexander Pohoyda)
...
* improve error-reporting when chown/chmod of the pseudo-terminal fails,
e.g., if a copy of xterm which was designed to work with old-style
pseudo-terminals is not installed setuid or setgid (report by Jeremy
C. Reed).
and many others.
Changes:
- pkgsrc patches for Darwin and DragonFlyBSD were incorporated.
- Many bug fixes and improvements. See
http://dickey.his.com/xterm/xterm.log.html for the complete list.
Add some options to the package.
Changes:
* add extended shift- and control-modifier cursor keys to "xterm+pcfkeys"
terminfo entry to correspond to ncurses 20050430 patch.
* fix a rare case where text would be written with the wrong colors because
output of scrolled text would reset the colors and the new text would be
written with the same colors
* add environment variables $XTERM_SHELL and $XTERM_VERSION
* corrected workaround for background color of menubar, which gave a
too-broad expression, coloring the background of the VT100 widget unless
overridden by another resource setting.
* correct an error in the logic which decides when sched_yield() is run; it
would occasionally hang when contending with other pseudo-terminal
applications such as screen
* improve resource files to show how the menubar and popup menus can be
colored
* modify parsing of OSC (and SOS, etc), strings so their contents are not
interpreted as UTF-8. This allows non-ASCII title strings to be set,
provided that the window manager complies (report by Thomas Wolff).
* improved some of the built-in line-drawing glyphs.
* correct color of "box" character drawn for line-drawing glyph 1 (report
by Nicolas George).
* improve behavior when switching to UTF-8 mode after startup so xterm will
check if the current fonts are already wide (ISO10646-1). If they are not,
xterm will use the utf8Fonts subresource to load appropriate fonts
* modify logic for setting title-string so it applies to the current widget
rather than the vt100 widget.
* correct computation of width for wide characters with the invisible
attribute
* modify interaction between +u8 and locale resource to allow the
command-line option to override the resource
* ignore error in the I/O initialization that tries to set the tty to 7-bit
input for the case where eightBitInput resource is false
* modify command-processing to accept an optional parameter that tells
xterm which shell program to use
* correct logic of ReallocateBufOffsets() which did not copy the content of
the old screen buffer to the proper location, making a repaint clear
after switching to wide-character mode
* implement the remaining pieces to make xterm allocate cells for
wide-characters when the "UTF-8" menu entry is selected. Also, load the
UTF-8 font when that menu entry is selected, or the escape sequence for
UTF-8 mode is received
