ncurses 4.2

[ncurses.git] / NEWS

-- $Id: NEWS,v 1.316 1998/02/28 23:10:26 tom Exp $

This is a log of changes that ncurses has gone through since Zeyd started
working with Pavel Curtis' original work, pcurses, in 1992.

Changes through 1.9.9e are recorded by Zeyd M. Ben-Halim.
Changes since 1.9.9e are recorded by Thomas Dickey.

980228  pre-release
        + add linux-koi8r replace linux-koi8, which is not KOI8 (patch by
          QingLong <qinglong@Bolizm.ihep.su>).
        + minor documentation fixes (patch by Juergen Pfeifer).
        + add setlocale() call to ncurses.c (reported by Claes G. Lindblad
          <claesg@algonet.se>).
        + correct sign-extension in lib_insstr.c (reported by Sotiris
          Vassilopoulos <svas@leon.nrcps.ariadne-t.gr>)

980221  pre-release
        + regenerated some documentation overlooked in 980214 patch
          (ncurses-intro.doc, curs_outopts.3x.html)
        + minor ifdef change to C++ binding to work with gcc 2.8.0 (patch by
          Juergen Pfeifer).
        + change maintainer's mailing address to florian@gnu.org, change
          tentative mailing list address to bug-ncurses-request@gnu.org (patch
          by Florian La Roche).
        + add definition of $(REL_VERSION) to c++/Makefile.in (reported by Gran
          Hasse <gh@raditex.se>).
        + restore version numbers to Ada95 binding, accidentally deleted by
          copyright patch (patch by Juergen Pfeifer).

980214  pre-release
        + remove ncurses.lsm from MANIFEST so that it won't be used in FSF
          distributions, though it is retained in development.
        + correct scaling of milliseconds to nanoseconds in lib_napms.c (patch
          by Jeremy Buhler).
        + update mailing-list information (bug-ncurses@gnu.org).
        + update announcement for upcoming 4.2 release.
        + modify -lm test to check for 'sin()' rather than 'floor()'
        + remove spurious commas from terminfo.src descriptions.
        + change copyright notices to Free Software Foundation

980207
        + minor fixes for autoconf macros CF_ERRNO, CF_HELP_MESSAGE and
          CF_SIZECHANGE
        + modify Makefile.glibc so that $(objpfx) is defined (H.J.Lu).
        + ifdef-out true-return from _nc_mouse_inline() which depends on
          merge of QNX patch (pending 4.2 release).
        > patch by J.T.Conklin, to split off seldom-used modules in ncurses
          (reduces size by up to 2.6kb):
        + move functionality of _nc_usleep into napms, add configuration case
          for nanosleep().
        + moved wchgat() from lib_addch.c to lib_chgat.c
        + moved clearok(), immedok(), leaveok(), and scrollok() from
          lib_options.c to lib_clearok.c, lib_immedok.c, lib_leaveok.c and
          lib_scrollok.c.
        + moved napms() from lib_kernel.c to lib_napms.c
        + moved echo() and noecho() from lib_raw.c to lib_echo.c
        + moved nl() and nonl() from lib_raw.c to lib_nl.c

980131
        + corrected conversion in tclock.c (cf: 971018).
        + updates to Makefile.glibc and associated Linux configure script
          (patch by H.J.Lu).
        + workaround a quoting problem on SunOS with tar-copy.sh
        + correct init_pair() calls in worm.c to work when use_default_colors()
          is not available.
        + include <sys/types.h> in CF_SYS_TIME_SELECT to work with FreeBSD 2.1.5
        + add ncv capability to FreeBSD console (cons25w), making reverse
          work with color.
        + correct sense of configure-test for sys/time.h inclusion with
          sys/select.h
        + fixes for Ada95/ada_include/Makefile.in to work with --srcdir option.
        + remove unused/obsolete test-program rules from progs/Makefile.in
          (the rules in ncurses/Makefile.in work).
        + remove shared-library loader flags from test/Makefile.in, etc.
        + simplify test/configure.in using new version of autoconf to create
          test/ncurses_cfg.h
        + suppress suffix rules in test/Makefile.in, provide explicit dependency
          to work with --srcdir option and less capable 'make' programs.
        > adapted from patch for QNX by Xiaodan Tang:
        + initialize %P and %g variables set/used in tparm, and also ensure
          that empty strings don't return a null result from tparam_internal
        + add QNX-specific prototype for vsscanf()
        + move initialization of SP->_keytry from init_keytry() to newterm() to
          avoid resetting it via a keyok() call by mouse_activate().
        + reorganized some functions in lib_mouse() to use case-statements.
        + remove sgr string from qnx terminfo entry since it is reported to
          turn off attributes inconsistently.

980124 
        + add f/F/b/B commands to ncurses 'b' test to toggle colors, providing
          test for no_color_video.
        + adjusted emx.src to use no_color_video, now works with ncurses 'b'
          and 'k' tests.
        + implement no_color_video attribute, and as a special case, reverse
          colors when the reverse attribute cannot be combined with color.
        + check for empty string in $TERM variable (reported by Brett Michaels
          <brett@xylan.com>).
        > from reports by Fred Fish:
        + add configure-test for isascii
        + add configure-test for -lm library.
        + modify CF_BOOL_SIZE to check if C++ bool types are unsigned.
        > patches by J.J.G.Ripoll
        + add configure/makefile variables to support .exe extension on
          OS/2 EMX (requires additional autoconf patches).
        + explicitly initialize variables in lib_data.c to appease OS/2 linker
        > patches by Fred Fish <fnf@ninemoons.com>
        + misc/Makefile.in (install.data):  Avoid trying to install the CVS
          directory.
        + aclocal.m4 (install.includes):  Remove files in the include directory
          where we are going to install new ones, not the original source
          files.
        + misc/terminfo.src:  Add entry for "beterm", derived from termcap
          distributed with BeOS PR2 using captoinfo.
        + aclocal.m4: Wrap $cf_cv_type_of_bool with quotes (contains space)
        + aclocal.m4: Assume bool types are unsigned.
        + progs/infocmp.c: workaround mwcc 32k function data limit

980117
        + correct initialization of color-pair (from 970524) in xmas.c, which
          was using only one color-pair for all colors (reported by
          J.J.G.Ripoll).
        + add multithread options for objects build on EMX, for compatibility
          with XFree86.
        + split up an expression in MKlib_gen.sh to work around a problem on
          OS/2 EMX, with 'ash' (patch by J.J.G.Ripoll).
        + change terminfo entries xterm (xterm-xf86-v40), xterm-8bit rs1 to use
          hard reset.
        + rename terminfo entry xterm-xf86-v39t to xterm-xf86-v40
        + remove bold/underline from sun console entries since they're not
          implemented.
        + correct _tracef calls in _tracedump(), which did not separate format
          from parameters.
        + correct getopt string for tic "-o" option, and add it to man-page
          synopsis (reported by Darren Hiebert <darren@hmi.com>).
        + correct typo in panel/Makefile.in, reversed if-statement in scrolling
          optimization (Alexander V.  Lukyanov).
        + test for 'remove()', use 'unlink() if not found (patch by Philippe De
          Muyter <phdm@macqel.be>).
        > patches by Juergen Pfeifer:
        + Improve a feature of the forms driver.  For invisible fields
          (O_VISIBLE off) only the contents but not the attributes are cleared.
          We now clear both.  (Reported by Javier Kohan
          <jkohan@adan.fceia.unr.edu.ar>)
        + The man page form_field_opts.3x makes now clear, that invisible
          fields are also always inactive.
        + adjust ifdef's to compile the C++ binding with the just released
          gcc-2.8.0 c++ and the corresponding new C++ libraries.

980110
        + correct "?" command in ncurses.c; it was performing non-screen writes
          while the program was in screen mode.  (It "worked" in 1.9.9e because
          that version sets OPOST and OCRNL incorrectly).
        + return error from functions in lib_kernel, lib_raw and lib_ti if
          cur_term is null, or if underlying I/O fails.
        + amend change to tputs() so that it does not return an error if
          cur_term is null, since some applications depend on being able to use
          tputs without initializing the terminal (reported by Christian J.
          Robinson <infynity@cyberhighway.net>).

980103
        + add a copy of emx.src from J.J.G.Ripoll's OS/2 EMX version of ncurses
          1.9.9e, together with fixes/additions for the "ansi" terminal type.
        + add tic check for save/restore cursor if change_scroll_region is
          defined (from O'Reilly book).
        + modify read_termcap.c to handle EMX-style pathnames (reported by
          J.J.G.Ripoll).
        + modify lib_raw.c to use EMX's setmode (from J.J.G.Ripoll, who says
          EMX's curses does this).
        + modify _nc_tic_expand() to generate \0 rather than \200.
        + move/revise 'expand()' from dump_entry.c to ncurses library as
          _nc_tic_expand(), for use by tack.
        + decode \a as \007 for terminfo, as per XSI.
        + correct translation of terminfo "^@", to \200, like \0.
        + modify next_char() to treat <cr><lf> the same as <newline>, for
          cross-platform compatibility.
        + use new version of autoconf (971230) to work around limited
          environment on CLIX, due to the way autoconf builds --help message.
        > patch by Juergen Pfeifer:
        + check that the Ada95 binding runs against the correct version of
          ncurses.
        + insert constants about the library version into the main spec-file of
          the Ada95 binding.

971227
        + modify open/fopen calls to use binary mode, needed for EMX.
        + modify configure script to work with autoconf 2.10 mods for OS/2
          EMX from J.J.G.Ripoll.
        + generated ncurses_cfg.h with patch (971222) to autoconf 2.12 which
          bypasses limited sed buffer length.
        > several changes from Juan Jose Garcia Ripoll <worm@arrakis.es>
          (J.J.G.Ripoll) to support OS/2 EMX:
        + add a _scrolling flag to SP, to set when we encounter a terminal
          that simply cannot scroll.
        + corrected logic in _nc_add_to_try(), by ensuring that strings with
          embedded \200 characters are matched.
        + don't assume the host has 'link()' function, for linking terminfo
          entries.

971220
        + if there's no ioctl's to support sigwinch handler, disable it.
        + add configure option --disable-ext-funcs to remove the extended
          functions from the build.
        + add configure option --with-termlib to generate the terminfo
          functions as a separate library.
        + add 'sources' rule to facilitate cross-compiling.
        + review/fix order of mostlyclean/clean/distclean rules.
        + modify install-rule for headers to first remove old header, in
          case there was a symbolic link that confuses the install script.
        + corrected substitution for NCURSES_CONST in term.h (cf: 971108)
        + add null pointer checks in wnoutrefresh(), overlap() (patch by
          Xiaodan Tang <xtang@qnx.com>)
        + correct tputs(), which could dereference a null cur_term if invoked
          before terminal is initialized (patch by Christopher Seawood
          <cls@seawood.org>)
        > patch by Juergen Pfeifer:
        + makes better use of "pragma Inline" in the Ada95 binding
        + resynchronizes the generated html manpages

971213
        + additional fixes for man-pages section-references
        + add (for debugging) a check for ich/ich1 conflict with smir/rmir
          to tic, etc.
        + remove hpa/vpa from rxvt terminal description because they are not
          implemented correctly, added sgr0.
        + change ncurses 's' to use raw mode, so ^Q works (reported by Rudolf
          Leitgeb <leitgeb@leland.stanford.edu>)

971206
        + modify protection when installing libraries to (normally) not
          executable.  HP-UX shared libraries are an exception.
        + add configure check for 'tack'.
        + implement script for renaming section-references in man-page install,
          for Debian configuration.
        + add validity-check for SP in trace code in baudrate() (reported by
          Daniel Weaver).
        > patch by Alexander V. Lukyanov (fixes to match sol25 curses)
        + modify 'overlay()' so that copy applies target window background to
          characters.
        + correct 'mvwin()' so that it does not clear the previous locations.
        + correct lib_acs.c so that 8-bit character is not sign expanded in
          case of wide characters in chtype.
        + correct control-char test in lib_addch.c for use with wide chars
        + use attribute in the chtype when adding a control character in
          lib_addch.c control char was added with current attribute

971129
        + save/restore errno in _tracef() function
        + change treatment of initialize_color to use a range of 0..1000
          (recommended by Daniel Weaver).
        + set umask in mkinstalldirs, fixing problems reported by users who
          have set root's umask to 077.
        + correct bug in tic that caused capabilities to be reprinted at the
          end of output when they had embedded comments.
        + rewrote wredrawln to correspond to XSI, and split-out since it is
          not often used (from report by Alexander V. Lukyanov, 970825)
        + rewrote Dan Nelson's change to make it portable, as well as to
          correct logic for handling backslashes.
        + add code to _nc_tgetent() to make it work more like a real tgetent().
          It removes all empty fields, and removes all but the first in a group
          of duplicate caps.  The code was pulled from the BSD libtermcap code
          in termcap.c (patch by Dan Nelson <dnelson@emsphone.com>
        + don't include --enable-widec in the --with-develop configure option,
          since it is not binary-compatible with 4.1 (noted by Alexander V.
          Lukyanov)
        > patch by Juergen Pfeifer:
        + further improvements of the usage of elaboration pragmas in the Ada95
          binding
        + enhanced Ada95 sample to use the user_data mechanism for panels.
        + a fix for the configuration script to make gnat-3.10 the required
          version.
        + resync of the html version of the manpages

971122
        > fixes/updates for terminfo.src:
        + add vt220-js, pilot, rbcomm, datapoint entries from esr's 27-jun-97
          version.
        + add hds200 description (Walter Skorski)
        + add EMX 0.9b descriptions
        + correct rmso/smso capabilities in wy30-mc and wy50-mc (Daniel Weaver)
        + rename xhpterm back to hpterm.
        > patch by Juergen Pfeifer:
        + Improves the usage of elaboration pragmas for the Ada95 binding.
        + Adds a translation of the test/rain.c into Ada95 to the samples.
          This has been contributed to the project by Laurent Pautet
          (pautet@gnat.com)

971115
        + increase MAX_NAME_SIZE to 512 to handle extremely long alias list
          in HP-UX terminfo.
        + correction & simplification of delay computation in tputs, based on
          comments from Daniel Weaver.
        + replace test for SCO with more precise header tests.
        + add configure test for unsigned literals, use in NCURSES_BITS macro.
        + comment-out the -PIC, etc., flags from c++, progs and test makefiles
          since they probably are not needed, and are less efficient (noted by.
          Ju"rgen Fluk)
        + add -L$(libdir) to loader options, after -L../lib so that loaders
          that record this information will tend to do the right thing if
          the programs are moved around after installing them (suggested by.
          Ju"rgen Fluk).
        + add -R option to loader options for programs for Solaris if the
          --enable-rpath option is specified for the libraries.

971112
        + correct installed filename for shared libraries on *BSD (reported by
          Ju"rgen Fluk).

971108
        + cleanup logic for deciding when tputs() should call delay_output(),
          based on comments from Daniel Weaver.
        + modified tputs() to avoid use of float.
        + correct use of trailpad in tputs(), which used the wrong variable
          in call to delay_output().
        + correct inverted expression for null-count in delay_output()
          (analysis by Daniel Weaver).
        + apply --enable-rpath option to Solaris (requested by Larry Virden).
        + correct substitution of EXTRA_CFLAGS for gcc 2.6.3
        + correct check for error-return by _nc_tgetent(), which returns 0
          for success.
        + add configure test for BSD 4.4 cgetent() function, modify
          read_termcap.c to use the host's version of that if found, using the
          terminal database on FreeBSD (reported by Peter Wemm).
        + add u8, u9 strings to sun-il description for Daniel Weaver.
        + use NCURSES_CONST in panel's user-pointer.
        + modify edit_cfg.sh and MKterm.h.awk.in to substitute NCURSES_CONST
          so that will work on NeXT.
        + use _nc_set_screen() rather than assignments to SP to fix port to
          NeXT (reported by Francisco A. Tomei Torres).

971101
        + force mandatory padding in bell and flash_screen, as specified in XSI.
        + don't allow padding_baud_rate to override mandatory delays (reported
          by Daniel Weaver).
        + modify delay_output() to use _nc_timed_wait() if no baudrate has been
          defined, or if the cur_term pointer is not initialized.  XSI treats
          this as unspecified.  (requested by Daniel Weaver).
        + change getcap-cache ifdef's to eliminate unnecessary chdir/mkdir
          when that feature is not configured.
        + remove _nc_err_abort() calls when write_entry.c finds a directory but
          cannot write to it, e.g., when translating part/all of /etc/termcap
          (reported by Andreas Jaeger <aj@arthur.rhein-neckar.de>).
          (this dates back to 951102, in 1.9.7a).
        + minor ifdef fixes to compile with atac and glibc 2.0.5c
        + add check for -lgen when configuring regexpr.h
        + modify Solaris shared-library option "-d y" to "-dy" to workaround
          incompatibility of gcc 2.7.2 vs vendor's tools.

971026
        + correct ifdef's for struct winsize vs struct ttysize in lib_setup.c
          to compile on SCO.
        + remove dangling backslash in panel/Makefile.in
        + modify MKkeyname.awk to work with SCO's nawk, which dumps core in the
          length() function.
        + correct length of allocation in _nc_add_to_try(), to allow for
          trailing null.
        + correct logic in _nc_remove_key(), which was discarding too many
          nodes (patch by Alexander V. Lukyanov)

971025
        + add definition for $(REL_VERSION) to test/Makefile.in, so *BSD
          shared libraries link properly (see 970524).
        + modify Linux shared-library generation to include library
          dependencies (e.g., -lncurses and -lgpm) in the forms, menu and
          panel libraries (suggested by Juergen Pfeifer).
        + modify configure script to use config.guess and config.sub rather
          than uname, which is unreliable on some systems.
        + updated Makefile.glibc, test-built with glibc 2.0.5c
        + modify keyname() to return values consistent with SVr4 curses (patch
          by Ju"rgen Fluk).
        > changes requested by Daniel Weaver:
        + modify delay_output() so that it uses the same output function as
          tputs() if called from that function.
        + move _baudrate from SCREEN to TERMINAL so that low-level use of
          tputs works when SP is not set.
        > patch by Juergen Pfeifer:
        + factor lib_menu and lib_form into smaller modules
        + clean up the interface between panel and SCREEN
        + minor changes to the Ada95 mouse support implemenation
        + minor bugfix in C++ binding to ripoff windows
        + fix a few Ada95 html documentation pages

971018
        + split-out lib_ungetch.c, make runtime link to resizeterm() to
          decouple those modules from lib_restart.c
        + add xterm-xf86-v39t description to terminfo.src
        + reset SP->_endwin in lib_tstp.c cleanup() function after calling
          endwin() to avoid unnecessary repainting if the application has
          established an atexit function, etc.  Encountered this problem in
          the c++ demo, whose destructors repaint the screen.
        + combine _nc_get_screensize() and resizeterm() calls as new function
          _nc_update_screensize().
        + minor fixes to allow compile with g++ (suggested by Nelson H. F.
          Beebe).
        + implement install-rules for Ada95 makefiles.
        + use screen_lines or MAXLINES as needed where LINES was coded,
          as well as screen_columns for COLS, in the ncurses library.
        > patch by Alexander V. Lukyanov:
        + modify logic for ripped-off lines to handle several SCREENs.
        > patch by Juergen Pfeifer:
        + factors lib_slk.c into some smaller modules
        + factors panel.c into some smaller modules
        + puts the static information about the current panel stack into the
          SCREEN structure to allow different panel stacks on different
          screens.
        + preliminary fix for an error adjusting LINES to account for
          ripped-off lines.

971011
        + move _nc_max_click_interval and other mouse interface items to SCREEN
          struct so that they are associated with a single terminal, and also
          save memory when the application does not need a mouse (roughly 3k vs
          0.5k on Linux).
        + modify mouseinterval() so that a negative parameter queries the
          click-interval without modifying it.
        + modify ncurses 'i' test to work with ncurses' apparent extension from
          SVr4, i.e., allows nocbreak+noecho (analysis by Alexander V.
          Lukyanov).
        + add configure options --with-ada-includes and --with-ada-objects,
          to drive Ada95 binding install (not yet implemented).
        + install C++ binding as -lncurses++ and associated headers with the
          other ncurses headers.
        + fix header uninstall if configure --srcdir is used.
        > minor interface changes (request by Daniel Weaver <danw@znyx.com>,
          to support 'tack' program):
        + export functions _nc_trans_string() and _nc_msec_cost().
        + add variable _nc_nulls_sent, to record the number of padding
          characters output in delay_output().
        + move tests for generic_type and hard_copy terminals in setupterm()
          to the end of that function so that the library will still be
          initialized, though not generally useful for curses programs.
        > patches by Alexander V. Lukyanov:
        + modify ClrBottom() to avoid using clr_eos if there is only one line
          to erase.
        + typo in configure --help.
        > patch by J.T.Conklin (with minor resync against Juergen's changes)
        + split-out lib_flash.c from lib_beep.c
        + split-out lib_hline.c and lib_vline.c from lib_box.c
        + split-out lib_wattron.c, lib_wattroff.c from lib_addch.c

971005
        > patch by Juergen Pfeifer:
        + correct source/target of c++/edit_cfg.sh

971004
        + add color, mouse support to kterm terminfo entry.
        + modify lib_mouse.c to recognize rxvt, kterm, color_xterm also as
          providing "xterm"-style mouse.
        + updated rxvt's terminfo description to correspond to 2.21b, with
          fixes for the acsc (the box1 capability is incorrect, ech1 does not
          work).
        + fix logic in parse_entry.c that discarded acsc when 'synthesizing'
          an entry from equivalents in XENIX or AIX.  This lets ncurses handle
          the distribution copy of rxvt's terminfo.
        + modify acsc capability for linux and linux-koi8 terminfo descriptions
          (from Pavel Roskin <pavel@absolute.spb.su>).
        + corrected definition in curses.h for ACS_LANTERN, which was 'I'
          rather than 'i' (see 970802).
        + updated terminfo.src with reformatted acsc entries, and repaired the
          trashed entries with spurious '\' characters that this exposed.
        + add logic to dump_entry.c to reformat acsc entries into canonical
          form (sorted, unique mapping).
        + add configure script to generate c++/etip.h
        + add configure --with-develop option, to enable by default most of the
          experimental options (requested by Alexander V. Lukyanov).
        + rename 'deinstall' to 'uninstall', following GNU convention (suggested
          by Alexander V. Lukyanov).
        > patches by Alexander V. Lukyanov:
        + modify tactics 2 and 5 in onscreen_mvcur(), to allow them on the last
          line of the screen, since carriage return will not cause a newline.
        + remove clause from PutCharLR() that would try to use
          eat_newline_glitch since that apparently does not work on some
          terminals (e.g., M$ telnet).
        + correct a limit check in scroll_csr_backward()
        > patches by Juergen Pfeifer:
        + adds dummy implementations of methods above() and below() to the
          NCursesPanel class.
        + fixes missing returncode in NCursesWindow::ripoffline()
        + fixes missing returncode in TestApplication::run() in demo.cc
        + We should at least give a comment in etip.h why it is currently a
          problem to install the C++ binding somewhere
        + makes the WINDOW* argument of wenclose() a const.
        + modifies several of the routines in lib_adabind.c to use a const
          WINDOW* argument.

970927
        + add 'deinstall' rules.
        + use explicit assignments in configure --without-progs option to
          work around autoconf bug which doesn't always set $withval.
        + check for ldconfig, don't try to run it if not found.
        + implement simple/unoptimized case in lib_doupdate.c to handle
          display with magic cookie glitch, tested with ncurses.c program.
        + correct missing _tracef in getmouse(), to balance the returnCode
          macro.
        + simplify show_attr() in ncurses.c using termattrs().
        > patches by Juergen Pfeifer:
        + provides missing inlines for mvw[hv]line in cursesw.h of the C++
          binding
        + fixes a typo in a comment of frm_driver.c
        + Enhances Ada95 Makefiles to fulfill the requirement of GNAT-3.10 that
          generics should be compiled.  Proper fixes to the configuration
          scripts are also provided.

970920
        + several modifications to the configure script (requested by Ward
          Horner):
          + add configure options --without-progs, to suppress the build of the
            utility programs, e.g., for cross-compiling.
          + add $(HOSTCCFLAGS) and $(HOSTLDFLAGS) symbols to ncurses
            Makefile.in, to simplify setup for cross compiling.
          + add logic in configure script to recognize "--target=vxworks", and
            generate load/install actions for VxWorks objects.
        + move typedef for sigaction_t into SigAction.h to work around problem
          generating lint library.
        + modify fty_regex.c to reflect renaming of ifdef's for regular
          expressions.
        + simplify ifdef in lib_setup.c for TIOCGWINSZ since that symbol may
          reside in <sys/ioctl.h>.
        + merge testcurs.c with version from PDCurses 2.3, clarifying some of
          the more obscure tests, which rely upon color.
        + use macros getbegyx() and getmaxyx() in newdemo.c and testcurs.c
        + modify ncurses.c to use getbegyx() and getmaxyx() macros to cover up
          implementation difference wrt SVr4 curses, allow 's' test to work.
        + add missing endwin() to testscanw.c program (reported by Fausto
          Saporito <fausap@itb.it>).
        + fixes/updates for Makefile.glibc and related files under sysdeps
          (patch by H.J.Lu).
        > patches by Juergen Pfeifer:
        + add checks for null pointers, especially WINDOW's throughout the
          ncurses library.
        + solve a problem with wrong calculation of panel overlapping (reported
          by Ward Horner):
          + make sure that a panel's window isn't a pad.
          + do more error checking in module lib_touch.c
        + missing files for Ada95 binding from the last patch
        + synch. of generated html pages (RCS-Id's were wrong in html files)
        + support for Key_Resize in Ada binding
        + changed documentation style in ./c++/cursesm.h
        > patches by Alexander V. Lukyanov:
        + undo attempt to do recursive inlining for PutChar(), noting that it
          did not improve timing measurably, but inflated the size of
          lib_doupdate.o

970913
        + modify rain.c to use color.
        + correct scroll_csr_backward() to match scroll_csr_forward().
        + minor adjustment to llib-lncurses, to work with Solaris 2.5.1
        + minor fixes to sysdeps/unix/sysv/linux/configure to reflect renaming
          of configure cache variables in 970906.
        + correct logic involving changes to O_VISIBLE option in
          Synchronize_Options function in frm_driver.c (Tony Hoffmann
          <Tony.Hoffmann@hia.nrc.ca>)
        + add $(HOSTCC) symbol to ncurses Makefile.in, to simplify setup for
          cross compiling (suggested by Chris Johns).
        + modify ifdef in lib_setup.c to only include <sys/ioctl.h> if we can
          use it to support screen-size calculation (reported by Chris Johns).
        + #undef unctrl to avoid symbol conflict in port to RTEMS (reported by
          Chris Johns <cjohns@plessey.com.au>)
        > patches by Juergen Pfeifer:
        + simplified, made minor corrections to Ada95 binding to form fieldtype.
        + The C++ binding has been enhanced:
          + Improve NCursesWindow class:  added additional methods to cover
            more ncurses functionality.  Make refresh() and noutrefresh()
            virtual members to allow different implementation in the
            NCursesPanel class.
          + CAUTION:  changed order of parameters in vline() and hline() of
            NCursesWindow class.
          + Make refresh() in NCursesPanel non-static, it is now a
            reimplementation of refresh() in the base class.  Added
            noutrefresh() to NCursesPanel.
          + Added NCursesForm and related classes to support libform
            functionality.
          + Moved most of configuration related stuff from cursesw.h to etip.h
          + Added NCursesApplication class to support easy configuration of
            menu and forms related attributes as well as ripped of title lines
            and Soft-Label-Keys for an application.
          + Support of Auto-Cleanup for a menu's fieldlist.
          + Change of return type for current_item() and operator[] for menus.
          + Enhanced demo.
        + Fixed a bug in form/fld_def.c:  take into account that copyarg and
          freearg for a fieldtype may be NULL, makearg must not be NULL
        + Fixed a bug in form/fld_type.c:  in set_fieldtype_arg() makearg must
          not be NULL, copyarg and freearg may be NULL.
        + Fixed a bug in form/frm_def.c:  Allow Disconnect_Fields() if it is
          already disconnected.
        + Enhance form/frm_driver.c:  Allow growth of dynamic fields also on
          navigation requests.
        + Fixed a bug in form/fty_enum.c:  wrong position of postincrement in
          case-insensitiva comparision routine.
        + Enhanced form/lib_adabind.c with function _nc_get_field() to get a
          forms field by index.
        + Enhanced menu/m_adabind.c with function _nc_get_item() to get a menus
          item by index.
        + Fixed in curses.h.in:  make chtype argument for pechochar() constant.
          Mark wbkgdset() as implemented, remove wbkgdset macro, because it was
          broken (didn't handle colors correctly).
        + Enhanced lib_mouse.c: added _nc_has_mouse() function
        + Added _nc_has_mouse() prototype to curses.priv.h
        + Modified lib_bkgd.c:  hopefully correct implementation of wbkgdset();
          streamlined implementation of wbkgd()
        + Modified lib_mvwin.c:  Disable move of a pad.  Implement (costly)
          move of subwindows.  Fixed update behaviour of movements of regular
          windows.
        + Fixed lib_pad.c:  make chtype argument of pechochar() const.
        + Fixed lib_window.c:  dupwin() is not(!) in every bit a really clone
          of the original.  Subwindows become regular windows by doing a
          dupwin().
        + Improved manpage form_fieldtype.3x
        > patches by Alexander V. Lukyanov:
        + simplify the PutChar() handling of exit_am_mode, because we already
          know that auto_right_margin is true.
        + add a check in PutChar() for ability to insert to the case of
          shifting character to LR corner.
        + in terminal initialization by _nc_screen_resume(), make sure that
          terminal right margin mode is known.
        + move logic that invokes touchline(), or does the equivalent, into
          _nc_scroll_window().
        + modify scrolling logic use of insert/delete line capability, assuming
          that they affect the screen contents only within the current
          scrolling region.
        + modify rain.c to demonstrate SIGWINCH handler.
        + remove logic from getch() that would return an ERR if the application
          called getch() when the cursor was at the lower-right corner of the
          physical screen, and the terminal does not have insert-character
          ability.
        + change view.c so that it breaks out of getch() loop if a KEY_RESIZE
          is read, and modify logic in getch() so this fix will yield the
          desired behavior, i.e., the screen is repainted automatically when
          the terminal window is resized.

970906
        + add configure option --enable-sigwinch
        + modify view.c to test KEY_RESIZE logic, with "-r" option.
        + modify testcurs.c to eliminate misleading display wrt cursor type
          by testing if the terminal supports cnorm, civis, cvvis.
        + several fixes for m68k/NeXT 4.0, to bring cur_term, _nc_curr_line and
          _nc_curr_col variables into linked programs:  move these variables,
          making new modules lib_cur_term and trace_buf (reported by Francisco
          Alberto Tomei Torres <fatomei@sandburg.unm.edu>).
        > patches by Alexander V. Lukyanov:
        + add pseudo-functionkey KEY_RESIZE which is returned by getch() when
          the SIGWINCH handler has been called since the last call to
          doupdate().
        + modify lib_twait.c to hide EINTR only if HIDE_EINTR is defined.
        + add SIGWINCH handler to ncurses library which is used if there is no
          application SIGWINCH handler in effect when the screen is
          initialized.
        + make linked list of all SCREEN structures.
        + move curses.h include before definition of SCREEN to use types in
          that structure.
        + correction to ensure that wgetstr uses only a newline to force a
          scroll (970831).

970831
        + add experimental configure option --enable-safe-sprintf; the normal
          mode now allocates a buffer as large as the screen for the
          lib_printw.c functions.
        + modify wgetch to refresh screen when reading ungetch'd characters,
          since the application may require this - SVr4 does this.
        + refine treatment of newline in wgetstr to echo only when this would
          force the screen to scroll.

970830
        + remove override in wgetstr() that forces keypad(), since SVr4 does
          not do this.
        + correct y-reference for erasure in wgetstr() when a wrap forces a
          scroll.
        + correct x-position in waddch() after a wrap forces a scroll.
        + echo newline in wgetstr(), making testscanw.c scroll properly when
          scanw is done.
        + modify vwscanw() to avoid potential buffer overflow.
        + rewrote lib_printw.c to eliminate fixed-buffer limits.
        > patches by Alexander V. Lukyanov:
        + correct an error in handling cooked mode in wgetch(); processing
          was in the wrong order.
        + simplified logic in wgetch() that handles backspace, etc., by using
          wechochar().
        + correct wechochar() so that it interprets the output character as
          in waddch().
        + modify pechochar() to use prefresh() rather than doupdate(), since
          the latter does not guarantee immediate refresh of the pad.
        + modify pechochar() so that if called with a non-pad WINDOW, will
          invoke wechochar() instead.
        + modify fifo indices to allow fifo to be longer than 127 bytes.

970823
        + add xterm-8bit to terminfo.src
        + moved logic for SP->_fifohold inside check_pending() to make it
          work properly when we add calls to that function.
        + ensure that bool functions return only TRUE or FALSE, and TRUE/FALSE
          are assigned to bool values (patch by H.J.Lu).
        > patches by Alexander V. Lukyanov:
        + several fixes to getch:
          1.  Separate cooked and raw keys in fifo
          2.  Fix the case of ungetch'ed KEY_MOUSE
          3.  wrap the code for hiding EINTR with ifdef HIDE_EINTR
          4.  correctly handle input errors (i.e., EINTR) without loss of raw
              keys
          5.  recognize ESC KEY_LEFT and similar
          6.  correctly handle the case of receiption of KEY_MOUSE from gpm
        + correct off-by-one indexing error in _nc_mouse_parse(), that caused
          single mouse events (press/release) to be ignored in favor of
          composed events (click).  Improves on a fix from integrating gpm
          support in 961229.
        + add another call to check_pending, before scrolling, for
          line-breakout optimization
        + improve hashmap.c by
          1.  fixed loop condition in grow_hunks()
          2.  not marking lines with offset 0
          3.  fixed condition of 'too far' criteria, thus one-line hunks are
          ignored and two lines interchanged won't pass.
        + rewrote/simplified _nc_scroll_optimize() by separating into two
          passes, forward/backward, looking for chunks moving only in the given
          direction.
        + move logic that emits sgr0 when initializing the screen to
          _nc_screen_init(), now invoked from newterm.
        + move cursor-movement cleanup from endwin() into _nc_mvcur_wrap()
          function and screen cleanup (i.e., color) into _nc_screen_wrap()
          function.
        + add new functions _nc_screen_init(), _nc_screen_resume() and
          _nc_screen_wrap().
        + rename _nc_mvcur_scrolln() to _nc_scrolln().
        + add a copy of acs_map[] to the SCREEN structure, where it can be
          stored/retrieved via set_term().
        + move variables _nc_idcok, _nc_idlok, _nc_windows into the SCREEN
          structure.

970816
        + implement experimental _nc_perform_scroll().
        + modify newterm (actually _nc_setupscreen()) to emit an sgr0 when
          initializing the screen, as does SVr4 (reported by Alexander V.
          Lukyanov).
        + added test_progs rule to ncurses/Makefile.
        + modify test/configure.in to check if initscr is already in $LIBS
          before looking for (n)curses library.
        + correct version-number in configure script for OSF1 shared-library
          options (patch by Tim Mooney).
        + add -DNDEBUG to CPPFLAGS for --enable-assertions (as Juergen
          originally patched) since the c++ demo files do not necessarily
          include ncurses_cfg.h
        + supply default value for --enable-assertions option in configure
          script (reported by Kriang Lerdsuwanakij <lerdsuwa@scf-fs.usc.edu>).
        > patches by Alexander V. Lukyanov:
        + correct/simplify logic of werase(), wclrtoeol() and wclrbot().  See
          example firstlast.c
        + optimize waddch_literal() and waddch_nosync() by factoring out
          common subexpressions.
        + correct sense of NDEBUG ifdef for CHECK_POSITION macro.
        + corrections to render_char(), to make handling of colored blanks
          match SVr4 curses, as well as to correct a bug that xor'd space
          against the background character.
        + replaced hash function with a faster one (timed it)
        + rewrote the hashmap algorithm to be one-pass, this avoids multiple
          cost_effective() calls on the same lines.
        + modified cost_effective() so it is now slightly more precise.
        > patches by H.J.Lu for glibc integration:
        + add modules define_key, keyok, name_match, tries
        + add makefile rules for some of the unit tests in ncurses (mvcur,
          captoinfo, hardscroll, hashmap).
        + update Linux configure-script for wide-character definitions.

970809
        + modify _tracebits() to show the character size (e.g., CS8).
        + modify tparm() to emit '\200' where the generated string would have a
          null (reported by From:  Ian Dall <Ian.Dall@dsto.defence.gov.au> for
          terminal type ncr7900).
        + modify install process so that ldconfig is not invoked if the
          package is built with an install-prefix.
        + correct test program for chtype size (reported by Tim Mooney).
        + add configure option --disable-scroll-hints, using this to ifdef the
          logic that computes indices for _nc_scroll_optimize().
        + add module ncurses/softscroll.c, to perform single-stage computation
          of scroll indices used in _nc_scroll_optimize().  This is faster than
          the existing scrolling algorithm, but tends to make too-small hunks.
        + eliminate fixed buffer size in _nc_linedump().
        + minor fixes to lib_doupdate.c to add tradeoff between clr_eol (el)
          and clr_bol (el1), refine logic in ClrUpdate() and ClrBottom() (patch
          by Alexander V. Lukyanov).
        + add test/testaddch.c, from a pending patch by Alexander V. Lukyanov.
        + correct processing of "configure --enable-assertions" option (patch
          by Juergen Pfeifer).

970802
        + add '-s' (single-step) option too test/hashtest.c, correct an error
          in loop limit for '-f' (footer option), toggle scrollok() when
          writing footer to avoid wrap at lower-right corner.
        + correct behavior of clrtoeol() immediately after wrapping cursor,
          which was not clearing the line at the cursor position (reported by
          Liviu Daia <daia@stoilow.imar.ro>).
        + corrected mapping for ACS_LANTERN, which was 'I' rather than 'i'
          (reported by Klaus Weide <kweide@tezcat.com>).
        + many corrections to make progs/capconvert work, as well as make it
          reasonably portable and integrated with ncurses 4.1 (reported by Dave
          Furstenau <df@ravine.binary.net>).

970726
        + add flag SP->_fifohold, corresponding logic to modify the behavior of
          the line breakout logic so that if the application does not read
          input, refreshes will not be stopped, but only slowed.
        + generate slk_attr_off(), slk_attr_on(), slk_attr_set(), vid_attr(),
          ifdef'd for wide-character support, since ncurses' WA_xxx attribute
          masks are identical with the A_xxx masks.
        + modify MKlib_gen.sh to generate ifdef'd functions to support optional
          configuration of wide-characters.
        + modify tset to behave more like SVr4's tset, which does not modify
          the settings of intr, quit or erase unless they are given as command
          options (reported by Nelson H. F. Beebe <beebe@math.utah.edu>).
        + modify tset to look in /etc/ttys or /etc/ttytype if the configuration
          does not have getttynam().
        + extend baudrate table in tset.c to match baudrate() function.
        + add table entries for 230400 and 460800 bd to baudrate() function.
        + improve breakout logic by allowing it before the first line updated,
          which is what SVr4 curses does (patch by Alexander V. Lukyanov).
        + correct initialization of vcost in relative_move(), for cursor-down
          case (patch by Alexander V. Lukyanov).
        > nits gleaned from Debian distribution of 1.9.9g-3:
        + install symbolic link for intotocap.
        + reference libc directly when making shared libraries.
        + correct renaming of curs_scr_dmp.3x in man_db.renames.
        + guard tgetflag() and other termcap functions against null cur_term
          pointer.

970719
        + corrected initial state of software echo (error in 970405, reported
          by Alexander V. Lukyanov).
        + reviewed/added messages to configure script, so that all non-test
          options should be accompanied by a message.
        + add configure check for long filenames, using this to determine if
          it is safe to allow long aliases for terminal descriptions as does
          SVr4.
        + add configure options for widec (wide character), hashmap (both
          experimental).
        > patch by Alexander V. Lukyanov:
        + hashmap.c - improved by heuristic, so that scroll test works much
          better when csr is not available.
        + hardscroll.c - patched so that it continues to scroll other chunks
          after failure to scroll one.
        + lib_doupdate.c - _nc_mvcur_scrolln extended to handle more cases; csr
          is avoided as it is relative costly.  Fixed wrong coordinates in one
          case and wrong string in TRACE.
        > patch by Juergen Pfeifer:
        + modify C++ binding to compile on AIX 4.x with the IBM C-SET++
          compiler.

970712
        + remove alternate character set from kterm terminfo entry; it uses the
          shift-out control for a purpose incompatible with curses, i.e., font
          switching.
        + disentangle 'xterm' terminfo entry from some derived entries that
          should be based on xterm-r6 instead.
        + add cbt to xterm-xf86-xv32 terminfo entry; I added the emulation for
          XFree86 3.1.2F, but overlooked its use in terminfo then - T.Dickey.
        + correct logic in lib_mvcur.c that uses back_tab.

970706
        + correct change from 970628 to ClrUpdate() in lib_doupdate.c so that
          contents of curscr are saved in newscr before clearing the screen.
          This is needed to make repainting work with the present logic of
          TransformLine().
        + use napms() rather than sleep() in tset.c to avoid interrupting I/O.

970705
        + add limit checks to _nc_read_file_entry() to guard against overflow
          of buffer when reading incompatible terminfo format, e.g, from OSF/1.
        + correct some loop-variable errors in xmc support in lib_doupdate.c
        + modify ncurses 'b' test to add gaps, specified by user, to allow
          investigation of interaction with xmc (magic cookie) code.
        + correct typo in 970524 mods to xmas.c, had omitted empty parameter
          list from has_colors(), which gcc ignores, but SVr4 does not
          (reported by Larry Virden).
        + correct rmso capability in wy50-mc description.
        + add configure option "--enable-hard-tabs", renamed TABS_OK ifdef to
          USE_HARD_TABS.
        > patch by Juergen Pfeifer:
        + Add bindings for keyok() and define_key() to the Ada95 packages.
        + Improve man pages menu_post.3x and menu_format.3x
        + Fix the HTML pages in the Ada95/html directory to reflect the above
          changes.

970628
        + modify change from 970101 to ClrUpdate() in lib_doupdate.c so that
          pending changes to both curscr and newscr are flushed properly.
          This fixes a case where the first scrolling operation in nvi would
          cause the screen to be cleared unnecessarily and repainted before
          doing the indexing, i.e., by repeatedly pressing 'j' (reported by
          Juergen Pfeifer).
        + correct error in trans_string() which added embedded newlines in a
          terminfo description to the stored strings.
        + remove spurious newlines from sgr in wyse50 (and several other)
          terminfo descriptions.
        + add configure option for experimental xmc (magic cookie) code,
          "--enable-xmc-glitch".  When disabled (the default), attributes that
          would store a magic cookie are suppressed in vidputs().  The magic
          cookie code is far from workable at this stage; the configuration
          option is a stopgap.
        + move _nc_initscr() from lib_initscr.c to lib_newterm.c
        + correct path for invoking make_keys (a missing "./").

970621
        + correct sign-extension problem with "infocmp -e", which corrupted
          acsc values computed for linux fallback data.
        + correct dependency on ncurses/names.c (a missing "./").
        + modify configure script to use '&&' even for cd'ing to existing
          directories to work around broken shell interpreters.
        + correct a loop-limit in _nc_hash_map() (patch by Alexander V.
          Lukyanov).

970615
        + restore logic in _nc_scroll_optimize() which marks as touched the
          lines in curscr that are shifted.
        + add new utility 'make_keys' to compute keys.tries as a table rather
          than a series of function calls.
        + correct include-dependency for tic.h used by name_match
        + removed buffer-allocation for name and description from m_item_new.c,
          since this might result in incompatibilities with SVr4.  Also fixed
          the corresponding Ada95 binding module (patch by Juergen Pfeifer,
          from report by Avery Pennarun <apenwarr@foxnet.net>)
        + removed the mechanism to timestamp the generated Ada95 sources.  This
          resulted always in generating patches for the HTML doc, even when
          nothing really changed (patch by Juergen Pfeifer).
        + improve man page mitem_new.3x (patch by Juergen Pfeifer).

970614
        + remove ech capability from rxvt description because it does not work.
        + add missing case logic for infocmp -I option (reported by Lorenzo M.
          Catucci <lorenzo@argon.roma2.infn.it>)
        + correct old bug in pnoutrefresh() unmasked by fix in 970531; this
          caused glitches in the ncurses 'p' test since the area outside the
          pad was not compared when setting up indices for _nc_scroll_optimize.
        + rewrote tracebits() to workaround misdefinition of TOSTOP on Ultrix
          4.4, as well as to eliminate fixed-size buffer (reported by Chris
          Tanner <tannerc@aecl.ca>)
        + correct prototype for termattrs() as per XPG4 version 2.
        + add placeholder prototypes for color_set(), erasewchar(),
          term_attrs(), wcolor_set() as per XPG4 version 2.
        + correct attribution for progs/progs.priv.h and lib_twait.c
        + improve line-breakout logic by checking based on changed lines rather
          than total lines (patch by Alexander V. Lukyanov).
        + correct loop limits for table-lookup of enumerated value in form
          (patch by Juergen Pfeifer).
        + improve threshhold computation for determining when to call ClrToEOL
          (patch by Alexander V. Lukyanov).

970531
        + add configure option --disable-database to force the library to
          use only the fallback data.
        + add configure option --with-fallbacks, to specify list of fallback
          terminal descriptions.
        + add a symbolic link for ncurses.h during install; too many programs
          still assume there's an ncurses.h
        + add new terminfo.src entry for xterm-xf86-v33.
        + restore terminfo.src entry for emu to using setf/setb, since it is
          not, after all, generating ANSI sequences.  Corrected missing comma
          that caused setf/setb entries to merge.
        + modify mousemask() to use keyok() to enable/disable KEY_MOUSE, so
          that applications can disable ncurses' mouse and supply their own
          handler.
        + add extensions keyok() and define_key().  These are designed to allow
          the user's application better control over the use of function keys,
          e.g., disabling the ncurses KEY_MOUSE.  (The define_key idea was from
          a mailing-list thread started by kjahds@kjahds.com Nov'1995).
        + restore original behavior in ncurses 'g' test, i.e., explicitly
          set the keypad mode rather than use the default, since it confuses
          people.
        + rewrote the newdemo banner so it's readable (reported by Hugh Daniel).
        + tidy up exit from hashtest (reported by Hugh Daniel).
        + restore check for ^Q in ncurses 'g' test broken in 970510 (reported
          by Hugh Daniel)
        + correct tput program, checking return-value of setupterm (patch by
          Florian La Roche).
        + correct logic in pnoutrefresh() and pechochar() functions (reported
          by Kriang Lerdsuwanakij <lerdsuwa@scf.usc.edu>).  The computation
          of 'wide' date to eric's #283 (1.9.9), and the pechochar bug to the
          original implementation (1.9.6).
        + correct typo in vt102-w terminfo.src entry (patch by Robert Wuest
          <rwuest@sire.vt.com>)
        + move calls of _nc_background() out of various loops, as its return
          value will be the same for the whole window being operated on (patch
          by J.T.Conklin).
        + add macros getcur[xy] getbeg[xy] getpar[xy], which are defined in
          SVr4 headers (patch by J.T.Conklin <jtc@NetBSD.ORG>)
        + modify glibc addon-configure scripts (patch by H.J.Lu).
        + correct a bug in hashmap.c: the size used for clearing the hashmap
          table was incorrect, causing stack corruption for large values of
          LINES, e.g., >MAXLINES/2 (patch by Alexander V. Lukyanov).
        + eric's terminfo 9.13.23 & 9.13.24 changes: replaced minitel-2 entry,
          added MGR, ansi-nt (note: the changes described for 9.13.24 have not
          been applied).
        > several changes by Juergen Pfeifer:
        + correct a missing error-return in form_driver.c when wrapping of a
          field is not possible.
        + correct logic in form_driver.c for configurations that do not have
          memccpy() (reported by Sidik Isani <isani@cfht.hawaii.edu>)
        + change several c++ binding functions to inline.
        + modify c++ menu binding to inherit from panels, for proper
          initialization.
        + correct freeing of menu items in c++ binding.
        + modify c++ binding to reflect removal of const from user data pointer
          in forms/menus libraries.

970524
        + add description of xterm-16color.
        + modify name of shared-library on *BSD to end with $(REL_VERSION)
          rather than $(ABI_VERSION) to match actual convention on FreeBSD
          (cf: 960713).
        + add OpenBSD to shared-library case, same as NetBSD and FreeBSD
          (reported by Hugh Daniel <hugh@rat.toad.com>).
        + corrected include-dependency in menu/Makefile so that "make install"
          works properly w/o first doing "make".
        + add fallback definition for isascii, used in infocmp.
        + modify xmas to use color, and to exit right away when a key is
          pressed.
        + modify gdc so that the scrolled digits function as described (there
          was no time delay between the stages, and the digits overwrote the
          bounding box without tidying up).
        + modify lib_color.c to use setaf/setab only for the ANSI color codes
          0 through 7.  Using 16 colors requires setf/setb.
        + modify ncurses 'c' test to work with 16 colors, as well as the normal
          8 colors.
        + remove const qualifier from user data pointer in forms and menus
          libraries (patch by Juergen Pfeifer).
        + rewrote 'waddchnstr()' to avoid using the _nc_waddch_nosync()
          function, thereby not interpreting tabs, etc., as per spec (patch by
          Alexander V. Lukyanov).

970517
        + suppress check for pre-existing ncurses header if the --prefix
          option is specified.
        + add configure options "--with-system-type" and "--with-system-release"
          to assist in checking the generated makefiles.
        + add configure option "--enable-rpath" to allow installers to specify
          that programs linked against shared libraries will have their library
          path embedded, allowing installs into nonstandard locations.
        + add flags to OSF1 shared-library options to specify version and
          symbol file (patch by Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu>)
        + add missing definition for ABI_VERSION to c++/Makefile.in (reported
          by Satoshi Adachi <adachi@wisdom.aa.ap.titech.ac.jp>).
        + modify link flags to accommodate HP-UX linker which embeds absolute
          pathnames in executables linked against shared libraries (reported by
          Jason Evans <jasone@mrc.uidaho.edu>, solved by Alan Shutko
          <ats@hubert.wustl.edu>).
        + drop unnecessary check for attribute-change in onscreen_mvcur() since
          mvcur() is the only caller within the library, and that check in turn
          is exercised only from lib_doupdate.c (patch by Alexander V.
          Lukyanov).
        + add 'blank' parameter to _nc_scroll_window() so _nc_mvcur_scrolln()
          can use the background of stdscr as a parameter to that function
          (patch by Alexander V. Lukyanov).
        + moved _nc_mvcur_scrolln() from lib_mvcur.c to lib_doupdate.c, to use
          the latter's internal functions, as well as to eliminate unnecessary
          cursor save/restore operations (patch by Alexander V. Lukyanov).
        + omit parameter of ClrUpdate(), since it is called only for newscr,
          further optimized/reduced by using ClearScreen() and TransformLine()
          to get rid of duplicate code (patch by Alexander V. Lukyanov).
        + modify scrolling algorithm in _nc_scroll_optimize() to reject hunks
          that are smaller than the distance to be moved (patch by Alexander V.
          Lukyanov).
        + correct a place where the panel library was not ifdef'd in ncurses.c
          (Juergen Pfeifer)
        + documentation fixes (Juergen Pfeifer)

970515  4.1 release for upload to prep.ai.mit.edu
        + re-tag changes since 970505 as 4.1 release.

970510
        + modify ncurses 'g' test to allow mouse input
        + modify default xterm description to include mouse.
        + modify configure script to add -Wwrite-strings if gcc warnings are
          enabled while configuring --enable-const (and fixed related warnings).
        + add toggle, status display for keypad mode to ncurses 'g' test to
          verify that keypad and scrollok are not inherited from parent window
          during a call to newwin.
        + correction to MKexpanded.sh to make it work when configure --srcdir is
          used (reported by H.J.Lu).
        + revise test for bool-type, ensuring that it checks if builtin.h is
          available before including it, adding test for sizeof(bool) equal
          to sizeof(short), and warning user if the size cannot be determined
          (reported by Alexander V. Lukyanov).
        + add files to support configuration of ncurses as an add-on library
          for GNU libc (patch by H.J.Lu <hjl@lucon.org>)

970506
        + correct buffer overrun in lib_traceatr.c
        + modify change to lib_vidattr.c to avoid redundant orig_pair.
        + turn on 'echo()' in hanoi.c, since it is initially off.
        + rename local 'errno' variable in etip.h to avoid conflict with global
          (H.J.Lu).
        + modify configure script to cache LD, AR, AR_OPTS (patch by H.J.Lu
          <hjl@lucon.org>)

970505  4.1 pre-release
        + regenerate the misc directory html dumps without the link list, which
          is not useful.
        + correct dependency in form directory makefile which caused unnecessary
          recompiles.
        + correct substitution for ABI_VERSION in test-makefile
        + modify install rules for shared-library targets to remove the target
          before installing, since some install programs do not properly handle
          overwrite of symbolic links.
        + change order of top-level targets so that 'include' immediate
          precedes the 'ncurses' directory, reducing the time between new
          headers and new libraries (requested by Larry Virden).
        + modify lib_vidattr.c so that colors are turned off only before
          modifying other attributes, turned on after others.  This makes the
          hanoi.c program display correctly on FreeBSD console.
        + modify debug code in panel library to print user-data addresses
          rather than the strings which they (may) point to.
        + add check to ensure that C++ binding and demo are not built with g++
          versions below 2.7, since the binding uses templates.
        + modify c++ binding and demo to build and run with SGI's c++ compiler.
          (It also compiles with the Sun SparcWorks compiler, but the demo does
          not link, due to a vtbl problem).
        + corrections to demo.cc, to fix out-of-scope variables (Juergen
          Pfeifer).

970503
        + correct memory leak in _nc_trace_buf().
        + add configure test for regexpr.h, for Unixware 1.x.
        + correct missing "./" prefixing names of generated files in ncurses
          directory.
        + use single-quotes in configure scripts assignments for MK_SHARED_LIB
          to workaround shell bug on FreeBSD 2.1.5
        + remove tabs from intermediate #define's for GCC_PRINTF, GCC_SCANF
          that caused incorrect result in ncurses_cfg.h
        + correct initialization in lib_trace.c, which omitted version info.
        + remove ech, el1 attributes from cons25w description; they appear to
          malfunction in FreeBSD 2.1.5
        + correct color attributes in terminfo.src and lib_color.c to match
          SVr4 behavior by interchanging codes 1,4, 3,6 in the setf/setb
          capabilities.
        + use curs_set() rather than checks via tigetstr() for test programs
          that hide the cursor: firework, rain, worm.
        + ensure that if the terminal lacks change_scroll_region, parm_index
          and parm_rindex are used only to scroll the whole screen (patch by
          Peter Wemm).
        + correct curs_set() logic, which did not return ERR if the requested
          attributes did not exist, nor did it assume an unknown initial state
          for the cursor (patch by Alexander V. Lukyanov).
        + combine IDcTransformLine and NoIDcTransformLine to new TransformLine
          function in lib_doupdate.c (patch by Alexander V. Lukyanov).
        + correct hashmap.c, which did not update index information (patch by
          Alexander V. Lukyanov).
        + patch by Juergen Pfeifer for C++ binding and demo (see c++/NEWS)
        + correct index in lib_instr.c (Juergen Pfeifer).
        + correct typo in 970426 patch from Tom's cleanup of lib_overlay.c
          (Juergen Pfeifer).

970426
        + corrected cost computation in PutRange(), which was using
          milliseconds compared to characters by adding two new members to the
          SCREEN struct, _hpa_ch_cost and _cup_ch_cost.
        + drop ncurses/lib_unctrl.c, add ncurses/MKunctrl.awk to generate a
          const array of strings (suggested by Alexander V. Lukyanov, though
          with a perl script 970118).
        + rewrote ncurses 'b' test to better exercise magic-cookie (xmc), as
          well as noting the attributes that are not supported by a terminal.
        + trace the computation of cost values in lib_mvcur.c
        + modify _nc_visbuf() to use octal rather than hex, corrected sign
          extension bug in that function that caused buffer overflow.
        + modify trace in lib_acs.c to use _nc_visbuf().
        + suppress trace within _traceattr2().
        + correct logic of _tracechtype2(), which did not account for repeats
          or redefinition within an acsc string.
        + modify debug-library version baudrate() to use environment variable
          $BAUDRATE to override speed computation.  This is needed for
          regression testing.
        + correct problems shown by "weblint -pedantic".
        + update mailing-list information (now ncurses@bsdi.com).

970419
        + Improve form_field_validation.3x manpage to better describe the
          precision parameter for TYPE_NUMERIC and TYPE_INTEGER.  Provide more
          precise information how the range checking can be avoided.  (patch by
          Juergen Pfeifer, reported by Bryan Henderson)
        + change type of min/max value of form types TYPE_INTEGER to long to
          match SVr4 documentation.
        + set the form window to stdscr in set_form_win() so that form_win()
          won't return null (patch by Juergen Pfeifer, reported by Bryan
          Henderson <bryanh@giraffe.netgate.net>).

970412
        + corrected ifdef'ing of inline (from 970321) for TRACE vs C++.
        + corrected toggle_attr_off() macro (patch by Andries.Brouwer).
        + modify treatment of empty token in $MANPATH to /usr/man (reported by
          <Andries.Brouwer@cwi.nl>)
        + modify traces that record functions-called so that chtype and attr_t
          values are expressed symbolically, to simplify reuse of generated
          test-scripts on SVr4 regression testing.
        + add new trace functions _traceattr2() and _tracechtype2()

970405
        + add configure option --enable-const, to support the use of 'const'
          where XSI should have, but did not, specify.  This defines
          NCURSES_CONST, which is an empty token otherwise, for strict
          compatibility.
        + make processing of configure options more verbose by echoing the
          --enable/--with values.
        + add configure option --enable-big-core
        + set initial state of software echo off as per XSI.
        + check for C++ builtin.h header
        + correct computation of absolute-path for $INSTALL that dropped "-c"
          parameter from the expression.
        + rename config.h to ncurses_cfg.h to avoid naming-conflict when ncurses
          is integrated into larger systems (from diffs by H.J.Lu for libc).
        + correct inequality in lib_doupdate.c that caused a single-char to not
          be updated when the char on the right-margin was not blank, idcok()
          was true (patch by Alexander V.  Lukyanov 970124, also reported by
          Kriang Lerdsuwanakij <lerdsuwa@scf-fs.usc.edu> 970329).
        + modify 'clean' rule in include/Makefile so that files created by
          configure script are removed in 'distclean' rule instead.

970328
        + correct array limit in tparam_internal(), add case to interpret "%x"
          (patch by Andreas Schwab)
        + rewrote number-parsing in ncurses.c 'd' test; it did not reset the
          value properly when non-numeric characters were given (reported by
          Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>)

970321
        + move definition of __INTERNAL_CAPS_VISIBLE before include for
          progs.priv.h (patch by David MacKenzie).
        + add configuration summary, reordered check for default include
          directory to better accommodate a case where installer is configuring
          a second copy of ncurses (reported by Klaus Weide
          <kweide@tezcat.com>)
        + moved the #define for 'inline' as an empty token from the
          $(CFLAGS_DEBUG) symbol into config.h, to avoid redefinition warning
          (reported by Ward Horner).
        + modify test for bool builtin type to use 'unsigned' rather than
          'unknown' when cross-compiling (reported by Ward Horner).

970315
        + add header dependencies so that "make install.libs" will succeed
          even if "make all" is not done first.
        + moved some macros from lib_doupdate.c to curses.priv.h to use in
          expanded functions with ATAC.
        + correct implementation of lib_instr.c; both XSI and SVr4 agree that
          the winnstr functions can return more characters than will fit on one
          line.

970308
        + modify script that generates lib_gen.c to support traces of called &
          return.
        + add new configure option "--disable-macros", for testing calls within
          lib_gen.c
        + corrected logic that screens level-checking of called/return traces.

970301
        + use new configure macro NC_SUBST to replace AC_PATH_PROG, better
          addressing request by Ward Horner.
        + check for cross-compiling before trying to invoke the autoconf
          AC_FUNC_SETVBUF_REVERSED macro (reported by Ward Horner)
        + correct/simplify loop in _nc_visbuf(), 970201 changes omitted
          a pointer-increment.
        + eliminate obsolete symbol SHARED_ABI from dist.mk (noted by
          Florian La Roche).

970215
        + add configure option --enable-expanded, together with code that
          implements an expanded form of certain complex macros, for testing
          with ATAC.
        + disable CHECK_POSITION unless --with-assertions is configured
          (Alexander Lukyanov pointed out that this is redundant).
        + use keyname() to show traced chtype values where applicable rather
          than _tracechar(), which truncates the value to 8-bits.
        + minor fixes to TRACE_ICALLS, added T_CREATE, TRACE_CCALLS macros.
        + modify makefiles in progs and test directories to avoid using C
          preprocessor options on link commands (reported by Ward Horner)
        + correct ifdef/include-order for nc_alloc.h vs lib_freeall.c (reported
          by Ward Horner)
        + modify ifdef's to use configure-defined symbols consistently
          (reported by Ward Horner)
        + add/use new makefile symbols AR, AR_OPTS and LD to assist in non-UNIX
          ports (reported by Ward Horner <whorner@tsi-telsys.com>)
        + rename struct try to struct tries, to avoid name conflict with C++
          (reported by Gary Johnson).
        + modify worm.c to hide cursor while running.
        + add -Wcast-qual to gcc warnings, fix accordingly.
        + use PutChar rather than PutAttrChar in ClrToEOL to properly handle
          wrapping (Alexander Lukyanov).
        + correct spurious echoing of input in hanoi.c from eric's #291 & #292
          patches (reported by Vernon C. Hoxie <vern@zebra.alphacdc.com>).
        + extend IRIX configuration to IRIX64
        + supply missing install.libs rule needed after restructuring
          test/Makefile.in

970208
        + modify "make mostlyclean" to leave automatically-generated source
          in the ncurses directory, for use in cross-compiles.
        + autogenerated object-dependencies for test directory
        + add configure option --with-rcs-ids
        + modify configuration scripts to generate major/minor/patch versions
          (suggested by Alexander Lukyanov).
        + supply missing va_end's in lib_scanw.c
        + use stream I/O for trace-output, to eliminate fixed-size buffer
        + add TRACE_ICALLS definition/support to lib_trace.c
        + modify Ada95 binding to work with GNAT 3.09 (Juergen Pfeifer).

970201
        + add/modify traces for called/return values to simplify extraction
          for test scripts.
        + changed _nc_visbuf to quote its result, and to dynamically allocate
          the returned buffer.
        + invoke ldconfig after installing shared library
        + modify install so that overwrite applies to shared library -lcurses
          in preference to static library (reported by Zeyd 960928).
        + correct missing ';' in 961221 mod to overwrite option use of $(LN_S).
        + fixes to allow "make install" to work without first doing a "make
          all" (suggested by Larry Virden).

970125
        + correct order of #ifdef for TABS_OK.
        + instrumented toe.c to test memory-leaks.
        + correct memory-deallocation in toe.c (patch by Jesse Thilo).
        + include <sys/types.h> in configuration test for regex.h (patch by
          Andreas Schwab)
        + make infocmp recognize -I option, for SVr4 compatibility (reported by
          Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>)

970118
        + add extension 'use_default_colors()', modified test applications that
          use default background (firework, gdc, hanoi, knight, worm) to
          demonstrate.
        + correct some limit checks in lib_doupdate.c exposed while running
          worm.
        + use typeCalloc macro for readability.
        + add/use definition for CONST to accommodate testing with Solaris
          (SVr4) curses, which doesn't use 'const' in its prototypes.
        + modify ifdef's in test/hashtest.c and test/view.c to compile with
          Solaris curses.
        + modify _tracedump() to pad pad colors & attrs lines to match change
          in 970101 showing first/last changes.
        + corrected location of terminating null on dynamically allocated forms
          fields (patch by Per Foreby).

970111
        + added headers to make view.c compile on SCO with the resizeterm()
          code (i.e., struct winsize) - though this compiles, I don't have a
          suitable test configuration since SIGWINCH doesn't pass my network to
          that machine - T.Dickey.
        + update test/configure.in to supply some default substitutions.
        + modify configure script to add -lncurses after -lgpm to fix problem
          linking against static libraries.
        + add a missing noraw() to test/ncurses.c (places noted by Jeremy
          Buhler)
        + add a missing wclear() to test/testcurs.c (patch by Jeremy Buhler
          <jbuhler@cs.washington.edu>)
        + modify headers to accommodate compilers that don't allow duplicate
          "#define" lines for NCURSES_VERSION (reported by Larry W. Virden
          <lvirden@cas.org>)
        + fix formatting glitch in curs_getch.3x (patch by Jesse Thilo).
        + modify lib_doupdate to make el, el1 and ed optimization use the
          can_clear_with macro, and change EmitRange to allow leaving cursor at
          the middle of interval, rather than always at the end (patch by
          Alexander Lukyanov originally 960929, resync 970106).

970104
        + workaround defect in autoconf 2.12 (which terminates configuration
          if no C++ compiler is found) by adding an option --without-cxx.
        + modify several man-pages to use tbl, where .nf/.fi was used (reported
          by Jesse Thilo).
        + correct font-codes in some man-pages (patch by Jesse Thilo
          <Jesse.Thilo@pobox.com>)
        + use configure script's knowledge of existence of g++ library for the
          c++ Makefile (reported by Paul Jackson).
        + correct misleading description of --datadir configuration option
          (reported by Paul Jackson <pj@sam.engr.sgi.com>)

970101
        + several corrections to _nc_mvcur_scrolln(), prompted by a bug report
          from Peter Wemm:
        > the logic for non_dest_scroll_region was interchanged between the
          forward & reverse scrolling cases.
        > multiple returns from the function allowed certain conditions to do
          part of an operation before discovering that it couldn't be
          completed, returning an error without restoring the cursor.
        > some returns were ERR, where the function had completed the
          operation, because the insert/delete line logic was improperly
          tested (this was probably the case Peter saw).
        > contrary to comments, some scrolling cases were tested after the
          insert/delete line method.
        + modify _tracedump() to show first/last changes.
        + modify param of ClrUpdate() in lib_doupdate.c to 'newscr', fixes
          refresh problem (reported by Peter Wemm) that caused nvi to not show
          result of ":r !ls" until a ^L was typed.

961229  (internal alpha)
        + correct some of the writable-strings warnings (reported by Gary
          Johnson <gjohnson@season.com>).  Note that most of the remaining ones
          are part of the XSI specification, and can't be "fixed".
        + improve include-dependencies in form, menu, panel directories.
        + correct logic of delay_output(), which would return early if
          there is data on stdin.
        + modify interface & logic of _nc_timed_wait() to support 2 file
          descriptors, needed for GPM.
        + integrate patch by Andrew Kuchling <amk@magnet.com> for GPM (mouse)
          support, correcting logic in wgetch() and _nc_mouse_parse() which
          prevented patch from working properly.
        + improve performance of panel algorithm (Juergen Pfeifer 961203).
        + strip RCS id's from generated .html files in Ada95 subtree.
        + resync with generated .html files (Juergen Pfeifer 961223).
        + terminfo.src 10.1.0 from Eric.

961224  4.0 release
        + release as 4.0 to accommodate Linux ld.so.1.8.5
        + correct syntax/spelling, regenerated .doc files from .html using
          lynx 2.5
        + refined forms/menus makefiles (Juergen Pfeifer 961223).

961221  - snapshot
        + remove logic in read_entry.c that attempts to refine errno by using
          'access()' for the directory (from patch by Florian La Roche).
        + correct configure test/substitution that inhibits generating
          include-path to /usr/include if gcc is used (reported by Florian La
          Roche).
        + modify setupterm() to allocate new TERMINAL for each call, just as
          solaris' curses does (Alexander Lukyanov 960829).
        + corrected memory leaks in read_entry.c
        + add configure options --with-dbmalloc, --with-dmalloc, and
          --disable-leaks, tested by instrumenting infocmp, ncurses programs.
        + move #include's for stdlib.h and string.h to *.priv.h to accommodate
          use of dbmalloc.
        + modify use of $(LN_S) to follow recommendation in autoconf 2.12,
          i.e., set current directory before linking.
        + split-out panel.priv.h, improve dependencies for forms, menus
          (Juergen Pfeifer 961204).
        + modify _nc_freewin() to reset globals curscr/newscr/stdscr when
          freeing the corresponding WINDOW (Purify).
        + modify delwin() to return ERR if the window to be deleted has
          subwindows, needed as a side-effect of resizeterm() (Purify).  Tested
          and found that SVr4 curses behaves this way.
        + implement logic for _nc_freeall(), bringing stub up to date.

961215
        + modify wbkgd() so that it doesn't set nulls in the rendered text,
          even if its argument doesn't specify a character (fixes test case by
          Juergen Pfeifer for bug-report).
        + set window-attributes in wbkgd(), to simplify comparison against
          Solaris curses, which does this.

961214  - snapshot
        + replace most constants in ncurses 'o' test by expressions, making it
          work with wider range of screen sizes.
        + add options to ncurses.c to specify 'e' test softkey format, and the
          number of header/footer lines to rip-off.
        + add ^R (repaint after resize), ^L (refresh) commands to ncurses 'p'
          test.
        + add shell-out (!) command to ncurses 'p' test to allow test of
          resize between endwin/refresh.
        + correct line-wrap case in mvcur() by emitting carriage return,
          overlooked in 960928, but needed due to SVr4 compatibility changes to
          terminal modes in 960907.
        + correct logic in wresize that causes new lines to be allocated,
          broken for the special case of increasing rows only in 960907's fix
          for subwindows.
        + modify configure script to generate $(LDFLAGS) with -L and -l options
          in preference to explicit library filenames.  (NOTE: this may
          require further amending, since I vaguely recall a dynamic loader
          that did not work properly without the full names, but it should be
          handled as an exception to the rule, since some linkers do bulk
          inclusion of libraries when given the full name - T.Dickey).
        + modify configure script to allow user-supplied $CFLAGS to set the
          debug-option in all libraries (requested by lots of people).
        + use return consistently from main(), rather than exit (reported by
          Florian La Roche).
        + add --enable-getcap-cache option to configure, normally disabled
          (requested by Florian La Roche).
        + make configure test for gettimeofday() and possibly -lbsd more
          efficient (requested by Florian La Roche florian@knorke.saar.de)
        + minor adjustments to Ada95 binding (patches by Juergen Pfeifer)
        + correct attributes after emitting orig_pair in lib_vidattr.c (patch
          by lav@yars.free.net).

961208
        + corrected README wrt Ada95 (Juergen Pfeifer)

961207  - snapshot
        + integrate resizeterm() into doupdate(), so that if screen size
          changes between endwin/refresh, ncurses will resize windows to fit
          (this needs additional testing with pads and softkeys).
        + add, for memory-leak testing, _nc_freeall() entrypoint to free all
          data used in ncurses library.
        + initialize _nc_idcok, _nc_idlok statically to resolve discrepancy
          between initscr() and newwin() initialization (reported by
          lav@yars.free.net).
        + test built VERSION=4.0, SHARED_ABI=4 with Linux ld.so.1.8.5
          (set beta versions to those values -- NOTE that subsequent pre-4.0
          beta may not be interchangeable).
        + modify configure script to work with autoconf 2.12

961130  1.9.9g release
        + add copyright notices to configuration scripts (written by Thomas
          Dickey).

961127
        > patch by Juergen Pfeifer (mostly for panel):
        + cosmetic improvement for a few routines in the ncurses core library
          to avoid warning messages.
        + the panel overlap detection was broken
        + the panel_window() function was not fool-proof.
        + Some inlining...
        + Cosmetic changes (also to avoid warning messages when compiling with
          -DTRACE).

961126
        > patch by Juergen Pfeifer:
        + eliminates warning messages for the compile of libform.
        + inserts Per Foreby's new field type TYPE_IPV4 into libform.
        + Updates man page and the Ada95 binding to reflect this.
        + Improves inlining in libmenu and libform.

961120
        + improve the use of the "const" qualifier in the
          panel library (Juergen Pfeifer)
        + change set_panel_userptr() and panel_userptr() to use void*
          (Juergen Pfeifer)

961119
        + change ABI to 3.4
        + package with 961119 version of Ada95 binding (fixes for gnat-3.07).
          (Juergen Pfeifer)
        + correct initialization of the stdscr pseudo panel in panel library
          (Juergen Pfeifer)
        + use MODULE_ID (rcs keywords) in forms and menus libraries (Juergen
          Pfeifer).
        > patch #324 by Eric.
        + typo in curs_termcap man page (reported by Hendrik Reichel
          <106065.2344@compuserve.com>)
        + change default xterm entry to xterm-r6.
        + add entry for color_xterm

961116  - snapshot
        + lint found several functions that had only #define implementations
          (e.g., attr_off), modified curses.h.in to generate them as per XSI
          Curses requirement that every macro be available as a function.
        + add check in infocmp.c to guard against string compare of
          CANCELLED_STRING values.
        + modify firework.c, rain.c to hide cursor while running.
        + correct missing va_end in lib_tparm.c
        + modify hanoi.c to work on non-color terminals, and to use timing
          delays when in autoplay mode.
        + correct 'echochar()' to refresh immediately (reported by Adrian
          Garside 94ajg2@eng.cam.ac.uk)
        > patch #322 by eric:
        + reorganize terminfo.src entries for xterm.

961109  - snapshot
        + corrected error in line-breakout logic (lib_doupdate.c)
        + modified newdemo to use wgetch(win) rather than getch() to eliminate
          a spurious clear-screen.
        + corrected ifdef's for 'poll()' configuration.
        + added modules to ncurses, form, menu for Ada95 binding (Juergen
          Pfeifer).
        + modify set_field_buffer() to allow assignment of string longer than
          the initial buffer length, and to return the complete string rather
          than only the initial size (Juergen Pfeifer and Per Foreby
          <perf@efd.lth.se>).

961102  - snapshot
        + configure for 'poll()' in preference to 'select()', since older
          systems are more likely to have a broken 'select()'.
        + modified render_char() to avoid OR'ing colors.
        + minor fixes to testcurs.c, newdemo.c test programs: ifdef'd out the
          resize test, use wbkgd and corrected box() parameters.
        + make flushinp() test work in ncurses.c by using napms() instead of
          sleep().
        + undo Eric's changes to xterm-x11r6 (it no longer matched the X11R6.1
          distribution, as stated)
        + terminfo 9.13.18 (resync by Eric)
        + check for getenv("HOME") returning null (Eric).
        + change buffer used to decode xterm-mouse commands to unsigned to
          handle displays wider than 128 chars (Juergen Pfeifer).
        + correct typo curs_outopts.3x (Juergen Pfeifer).
        + correct limit-checking in wenclose() (Juergen Pfeifer).
        + correction to Peter Wemm's newwin change (Thomas Fehr <fehr@suse.de>).
        + corrections to logic that combines colors and attributes; they must
          not be OR'd (Juergen Pfeifer, extending from report/patch by Rick
          Marshall).

961026  - snapshot
        + reset flags in 'getwin()' that might cause refresh to attempt to
          manipulate the non-existent parent of a window that is read from a
          file (lib_screen.c).
        + restructure _nc_timed_wait() to log more information, and to try to
          recover from badly-behaved 'select()' calls (still testing this).
        + move define for GOOD_SELECT into configure script.
        + corrected extra '\' character inserted before ',' in comp_scan.c
        + corrected expansion of %-format characters in dump_entry.c; some were
          rendered as octal constants.
        + modify dump_entry.c to make terminfo output more readable and like
          SVr4, by using "\s" for spaces (leading/trailing only), "\," for
          comma, "\^" and "\:" as well.
        + corrected some memory leaks in ncurses.c, and a minor logic error
          in the top-level command-parser.
        + correction for label format 4 (PC style with info line), a
          slk_clear(), slk_restore() sequence didn't redraw the info line
          (Juergen Pfeifer).
        + modified the slk window (if simulated) to inherit the background and
          default character attributes from stdscr (Juergen Pfeifer).
        + corrected limit-check in set_top_row (Juergen Pfeifer).

961019  - snapshot
        + correct loop-limit in wnoutrefresh(), bug exposed during pipe-testing
          had '.lastchar' entry one beyond '._maxx'.
        + modify ncurses test-program to work with data piped to it.
        + corrected pathname computation in run_tic.sh, removing extra "../"
          (reported by Tim Mooney).
        + modified configure script to use previous install's location for
          curses.h
        + added NetBSD and FreeBSD to platforms that use --prefix=/usr as
          a default.

961013
        + revised xterm terminfo descriptions to reflect the several versions
          that are available.
        + corrected a pointer reference in dump_entry.c that didn't test if
          the pointer was -1.

961005  - snapshot
        + correct _nc_mvcur_scrolln for terminals w/o scrolling region.
        + add -x option to hashtest to control whether it allows writes to the
          lower-right corner.
        + ifdef'd (NCURSES_TEST) the logic for _nc_optimize_enable to make it
          simpler to construct tests (for double-check of _nc_hash_map tests).
        + correct ifdef's for c++ in curses.h
        + change default xterm type to xterm-x11r6.
        + correct quoting in configure that made man-pages installed with
          $datadir instead of actual terminfo path.
        + correct whitespace in include/Caps, which caused kf11, clr_eol and
          clr_end to be omitted from terminfo.5
        + fix memory leaks in delscreen() (adapted from Alexander Lukyanov).
        + improve appearance of marker in multi-selection menu (Juergen
          Pfeifer)
        + fix behaviour for forms with all fields inactive (Juergen
          Pfeifer)
        + document 'field_index()' (Juergen Pfeifer)
        > patch #321 by eric:
        + add some more XENIX keycap translations to include/Caps.
        + modify newwin to set initial state of each line to 'touched'
          (from patch by Peter Wemm <peter@spinner.dialix.com>)
        + in SET_TTY, replace TCSANOW with TCSADRAIN (Alexander Lukyanov).

960928  - snapshot
        + ifdef'd out _nc_hash_map (still slower)
        + add graphic characters to vt52 description.
        + use PutAttrChar in ClrToEOL to ensure proper background, position.
        + simplify/correct logic in 'mvcur()' that does wrapping; it was
          updating the position w/o actually moving the cursor, which broke
          relative moves.
        + ensure that 'doupdate()' sets the .oldindex values back to a sane
          state; this was causing a spurious refresh in ncurses 'r'.
        + add logic to configure (from vile) to guard against builders who
          don't remove config.cache & config.status when doing new builds.
        + corrected logic for 'repeat_char' in EmitRange (from #317), which
          did not follow the 2-parameter scheme specified in XSI.
        + corrected logic of wrefresh, wnoutrefresh broken in #319, making
          clearok work properly (from report by Michael Elkins).
        + corrected problem with endwin introduced by #314 (removing the
          scrolling-region reset) that broke ncurses.c tests.
        + corrected order of args in AC_CHECK_LIB (from report by Ami Fischman
          <fischman@math.ucla.edu>).
        + corrected formatting of terminfo.5 tables (Juergen Ehling)
        > patch 320 by eric:
        + change ABI to 3.3
        + emit a carriage-return in 'endwin()' to workaround a kernel bug in
          BSDI.  (requested by Mike Karels <karels@redrock.bsdi.com>)
        + reverse the default o configure --enable-termcap (consensus).
        > patch 319 by eric:
        + modified logic for clearok and related functions (from report by
          Michael Elkins) - untested
        > patch 318 by eric:
        + correction to #317.
        > patch 317 by eric:
        + re-add _nc_hash_map
        + modify EmitRange to maintain position as per original design.
        + add hashtest.c, program to time the hashmap optimization.
        > patch 316 by eric:
        + add logic to deal with magic-cookie (how was this tested?)
          (lib_doupdate.c).
        + add ncurses.c driver for magic-cookie, some fixes to ncurses.c
        > patch 315 by eric:
        + merged A. Lukyanov's patch to use ech and rep - untested
          (lib_doupdate.c).
        + modified handling of interrupted system calls - untested
          (lib_getch.c, lib_twait.c).
        + new function _nc_mvcur_resume()
        + fix return value for 'overlay()', 'overwrite()'

960914  - snapshot
        + implement subwindow-logic in wresize, minor fixes to ncurses 'g'
          test.
        + corrected bracketing of fallback.c (reported/suggested fix by Juergen
          Ehling <eh@eclipse.aball.de>).
        + update xterm-color to reflect XFree86 3.1.3G release.
        + correct broken dtterm description from #314 patch (e.g., spurious
          newline.  The 'pairs' change might work, but no one's tested it
          either ;-)
        + clarify the documentation for the builtin form fieldtypes (Juergen
          Pfeifer)
        > patch 314 by eric:
        + Enhancement suggested by A. Lukyanov -- reset scroll region on
          startup rather than at wrapup time.
        + Fix suggested by A. Lukyanov, make storage of palette tables
          and their size counts per-screen for multi-terminal applications.
        + Improved error reporting for infotocap translation errors.
        + Update terminfo.src to 9.13.14.

960907  - snapshot
        + rewrote wgetstr to make it erase control chars and also fix bogus use
          of _nc_outstr which caused the display to not wrap properly (display
          problem reported by John M. Flinchbaugh <glynis@netrax.net>)
        + modify ncurses 'f' test to accommodate terminal responses to C1 codes
          (and split up this screen to accommodate non-ANSI terminals).
        + test enter_insert_mode and exit_insert_mode in has_ic().
        + removed bogus logic in mvcur that assumes nl/nonl set output modes
          (XSI says they are input modes; SVr4 implements this).
        + added macros SET_TTY, GET_TTY to term.h
        + correct getstr() logic that altered terminal modes w/o restoring.
        + disable ICRNL, etc., during initialization to match SVr4, removing
          the corresponding logic from raw, cbreak, etc.
        + disable ONLCR during initialization, to match SVr4 (this is needed
          for cursor optimization when the cursor-down is a newline).
        + replaced Eric's imitation of wresize with my original (his didn't
          work).

960831  - snapshot
        + memory leaks (Alexander V. Lukyanov).
        + modified pnoutrefresh() to be more tolerant of too-large screen
          size (reported by Michael Elkins).
        + correct handling of terminfo files with no strings (Philippe De
          Muyter)
        + correct "tic -s" to take into account -I, -C options.
        + modify ncurses 'f' test to not print codes 80 through 9F, since they
          are considered control codes by ANSI terminals.

960824  - snapshot
        + correct speed variable-type in 'tgetent()' (reported by Peter Wemm)
        + make "--enable-getcap" configuration-option work (reported by
          Peter Wemm <peter@spinner.DIALix.COM>)

960820
        + correct err in 960817 that changed return-value of tigetflag()
          (reported by Alexander V. Lukyanov).
        + modify infocmp to use library default search-path for terminfo
          directory (Alexander V. Lukyanov).

960817  - snapshot
        + corrected an err in mvcur that broke resizing-behavior.
        + correct fall-thru behavior of _nc_read_entry(), which was not finding
          descriptions that existed in directories past the first one searched
          (reported by Alexander V. Lukyanov)
        + corrected typo in dtterm description.
        > patch 313 by eric:
        + add dtterm description
        + clarify ncurses 'i' test (drop vscanf subtest)

960810  - snapshot
        + correct nl()/nonl() to work as per SVr4 & XSI.
        + minor fixes to ncurses.c (use 'noraw()', mvscanw return-code)
        + refine configure-test for -g option (Tim Mooney).
        + correct interaction between O_BLANK and NEW_LINE request in form
          library (Juergen Pfeifer)

960804
        + revised fix to tparm; previous fix reversed parameter order.
        > patch 312 by eric:
          correct terminfo.src corrupted by #310
        > patch 311 by eric:
        + fix idlok() and idcok() and the default of the idlok switch.

960803  - snapshot
        + corrected tparm to handle capability strings without explicit pop
          (reported by William P Setzer)
        + add fallback def for GCC_NORETURN, GCC_UNUSED for termcap users
          (reported by Tim Mooney).
        > patch 310 by eric:
        + documentation and prototyping errors for has_color, immedok and idcok
          (reported by William P Setzer <wsetzer@pams.ncsu.edu>)
        + updated qnx terminfo entry (by Michael Hunter)

960730
        + eliminate quoted includes in ncurses subdirectory, ensure config.h
          is included first.
        + newterm initializes terminal settings the same as initscr (reported
          by Tim Mooney).

960727  - snapshot
        + call cbreak() in initscr(), as per XSI & SVr4.
        + turn off hardware echo in initscr() as per XSI & SVr4
        > patch 309 by eric:
        + terminfo changes (9.3.10), from BRL
        + add more checks to terminfo parser.
        + add more symbols to infocmp.

960720  - snapshot
        + save previous-attribute in lib_vidattr.c if SP is null (reported by
          Ju"rgen Fluk <louis@dachau.marco.de>)
        + corrected calls on _nc_render so that background character is set
          as per XSI.
        + corrected wbkgdset macro (XSI allows background character to be null),
          and tests that use it.
        + more corrections to terminfo (xterm & rxvt)
        + undid change to mcprint prototype (cannot use size_t in curses.h
          because not all systems declare it in the headers that we can safely
          include therein).
        + move the ifdefs for errno into curses.priv.h
        > patch 308 by eric:
        + terminfo changes (9.3.8)
        + modified logic of error-reporting in terminfo parser

960713  - snapshot
        + always check for <sys/bsdtypes.h> since ISC needs it to declare
          fd_set (Juergen Pfeifer)
        + install shared-libraries on NetBSD/FreeBSD with ABI-version (reported
          by several people:  Juergen Pfeifer, Mike Long)
        + add LOCAL_LDFLAGS2 symbol (Juergen Pfeifer)
        + corrected prototype for delay_output() -- bump ABI to 3.2
        + terminfo patches #306/307 from Eric.
        + moved logic that filters out rmul and rmso from setupterm to newterm
          where it is less likely to interfere with termcap applications.

960707
        + rollback Eric's #305 change to terminfo.src (it breaks existing
          applications, e.g., 'less 290').
        + correct path of edit_man.sh, and fix typo that made all man-pages
          preformatted.
        + restore man/menu_requestname.3x omitted in Zeyd's resync (oops).
        + auto-configure the GCC_PRINTFLIKE/GCC_SCANFLIKE macros (reported by
          Philippe De Muyter).

960706  - snapshot
        + make lib_vidattr.c more readable using macros.
        + filter out rmul, rmso that conflict with sgr0 when reading terminal
          descriptions.
        + added sanity-checking of various paired string attributes (Eric).
        + work around autoconf bug, force $INSTALL to absolute path.
          (reported by Zeyd).
        + modify man-page install for BSDI to install preformatted .0 files
          (reported by David MacKenzie).
        + add/use gcc __attribute__ for printf and scanf in curses.h
        + added SGR attributes test-case to ncurses
        + revised ncurses 't' logic to show trace-disable effect in the menu.
        + use getopt in ncurses program to process -s and -t options.
        + make ncurses 'p' legend toggle with '?'
        + disable scrollok during the ncurses 'p' test; if it is enabled the
          stdscr will scroll when putting the box-corners in the lower-right
          of the screen.

960629  - snapshot
        + check return code of _nc_mvcur_scrolln() in _nc_scroll_optimize() for
          terminals with no scrolling-support (reported by Nikolay Shadrin
          <queen@qh.mirea.ac.ru>)
        + added ^S scrollok-toggle to ncurses 'g' test.
        + added ^T trace-toggle to ncurses tests.
        + modified ncurses test program to use ^Q or ESC consistently for
          terminating tests (rather than ^D), and to use control keys rather
          than function keys in 'g' test.
        + corrected misplaced wclrtoeol calls in addch to accommodate wrapping
          (reported by Philippe De Muyter).
        + modify lib_doupdate.c to use effective costs to tradeoff between
          delete-character/insert-character vs normal updating (reported by
          David MacKenzie).
        + compute effective costs for screen update operations (e.g., clr_eos,
          delete_character).
        + corrected error in knight.c exposed by wrap fixes in 960622; the
          msgwin needed scrollok set.
        + corrected last change to IDcTransformLine logic to avoid conflict
          between PutRange and InsStr
        + modified run_tic.sh to not use /usr/tmp (reported by David MacKenzie),
          and further revised it and aclocal.m4 to use $TMPDIR if set.
        + corrected off-by-one in RoomFor call in read_entry.c

960622  - snapshot
        + modified logic that wraps cursor in addch to follow the XSI spec,
          (implemented in SVr4) which states that the cursor position is
          updated when wrapping.  Renamed _NEED_WRAP to _WRAPPED to reflect the
          actual semantics.
        + added -s option to tic, to provide better diagnostics in run_tic.sh
        + improved error-recovery for tabset install.
        + change ABI to 3.1 (dropped tparam, corrected getbkgd(), added
          _yoffset to WINDOW).
        + modified initialization of SP->_ofp so that init_acs() is called with
          the "right" file pointer (reported by Rick Marshall <rjm@nlc.net.au>
        + documentation fixes (Juergen Pfeifer).
        + corrected, using new SCREEN and WINDOW members, the behavior of
          ncurses if one uses ripoffline() to remove a line from the top of the
          screen (Juergen Pfeifer).
        + modified autoconf scripts to prepare for Ada95 (GNAT) binding to
          ncurses (Juergen Pfeifer).
        + incorrect buffer-size in _nc_read_entry, reported by Eric Raymond.

960617
        + corrected two logic errors in read_entry.c, write_entry.c (called by
          tic, the write/read of terminfo entries used inconsistent rules for
          locating the entries; the $TERMINFO_DIRS code would find only the
          first entry in a list).
        + refined pathname computation in run_tic.sh and shlib.
        + corrected initialization of $IP in misc/run_tic.sh

960615  - snapshot
        + ifdef'd out _nc_hash_map() call because it does not improve speed.
        + display version of gcc if configure script identifies it.
        + modify configure script to use /usr as Linux's default prefix.
        + modify run_tic.sh to use shlib script, fixes some problems installing
          with a shared-library configuration.
        + adjusted configure script so that it doesn't run tests with the
          warnings turned on, which makes config.log hard to read.
        + added 'lint' rule to top-level Makefile.
        + added configure option '--with-install-prefix' for use by system
          builders to install into staging locations (from request by
          charles@comm.polymtl.ca)
        + corrected autoconfigure for Debian man program; it's not installed
          as "man_db".
        + set noecho in 'worm'; it was ifdef'd for debug only
        + updated test/configure.in for timing-display in ncurses 'p' test
        + corrected misspelled 'getbkgd()'.
        + corrected wbkgdset to work like observed syvr4 (sets A_CHARTEXT part
          to blank if no character given, copies attributes to window's
          attributes).
        + modified lib_doupdate.c to use lower-level SP's current_attr state
          instead of curscr's state, since it is redundant.
        + correction to IDcTransformLine logic which controls where InsStr is
          invoked (refined by lav@yars.free.net).
        > patches 303 by eric
        + conditionally include Chris Torek's hash function _nc_hash_map().
        + better fix for nvi refresh-bug (Rick Marshall)
        + fix for bug in handling of interrupted keystroke waits,
          (Werner Fleck).

960601  - snapshot
        + auto-configure man-page compression-format and renames for Debian.
        + corrected several typos in curses.h.in (i.e., the mvXXXX macros).
        + re-order curses.priv.h for lint.
        + added rules for lintlib, lint
        + corrected ifdef for BROKEN_LINKER in MKnames.awk.in
        + corrected missing INSTALL_DATA in misc/Makefile.in
        + flush output when changing cursor-visibility (Rick Marshall)
        + fix a minor bug in the _nc_ripoff() routine and improve error checking
          when creating the label window (Juergen Pfeifer).
        + enhancement to the control over the new PC-style soft key format.
          allow caller now to select whether or not one wants to have
          the index-line; see curs_slk.3x for documentation (Juergen Pfeifer).
        + typos, don't use inline with -g (Philippe De Muyter)
        + fixes for menus & wattr-, slk-functions (Juergen Pfeifer)

960526  - snapshot
        + removed --with-ticdir option altogether, maintain compatibility with
          existing applications via symbolic link in run_tic.sh
        + patch for termio.h, signal (Philippe De Muyter)
        + auto-configure gcc warning options rather than infer from version.
        + auto-configure __attribute__ for different gcc versions.
        + corrected special use of clearok() in hardscroll.c by resetting flag
          in wrefresh().
        + include stdlib.h before defs for EXIT_SUCCESS, for OSF/1.
        + include sys/types.h in case stdlib.h does not declare size_t.
        + fixes for makefile (Tim Mooney)
        + fixes for menus & forms (Juergen.Pfeifer@T-Online.de)

960518  - snapshot
        + revised ncurses.c panner test, let pad abut all 4 sides of screen.
        + refined case in lib_doupdate.c for ClrToEOL().
        + corrected prior change for PutRange (Alexander V.  Lukyanov:
          lav@yars.free.net).
        + autoconf mods (Tim Mooney: mooney@dogbert.cc.ndsu.NoDak.edu).
        + locale fix for forms (Philippe De Muyter: phdemuyt@ulb.ac.be)
        + renamed "--with-datadir" option to "--with-ticdir" to avoid
          confusion, and made this check for the /usr/lib/terminfo pre-existing
          directory.
        > patches 299-301 by eric:
        + added hashmap.c
        + mods to tracing, especially for ACS chars.
        + corrected off-by-one in IDCtransform.
        + corrected intermittent mouse bug by using return-value from read().
        + mods to parse_entry.c, for smarter defaults.

960512
        + use getopt in 'tic'; added -L option and modified -e option to allow
          list from a file.

960511
        + don't use fixed buffer-size in tparm().
        + modified tic to create terminfo directory if it doesn't exist.
        + added -T options to tic and infocmp (for testing/analysis)
        + refined the length criteria for termcap and terminfo
        + optimize lib_doupdate with memcpy, PutRange
        > patches 297, 298 by eric
        + implement TERMINFO_DIRS, and -o option of tic
        + added TRACE_IEVENT
        + removed boolean version of 'getm'
        + added lib_print.c (for Rick Marshall)
        + added has_key()
        + added 't' to ncurses.c test.
        + moved delay_output() to lib_tputs.c
        + removed tparam().
        + misc cursor & optimization fixes.

960504  - snapshot
        + modified ncurses 'p' test to allow full-screen range for panner size.
        + fixes for locale (phdm@labauto1.ulb.ac.be)
        + don't use fixed buffer-size in fmt_entry().
        + added usage-message to 'infocmp'.
        + modified install.includes rules to prepend subdirectory-name to
          "#include" if needed.

960430
        + protect wrefresh, wnoutrefresh from invocation with pad argument.
        + corrected default CCFLAGS in test/Makefile.

960428  - snapshot
        + implemented logic to support terminals with background color erase
          (e.g., rxvt and the newer color xterm).
        + improved screen update logic (off-by-one logic error; use clr_eos if
          possible)

960426  - snapshot
        + change ncurses 'a' test to run in raw mode.
        + make TIOCGWINSZ configure test less stringent, in case user
          configures via terminal that cannot get screen size.
        > patches 295, 296 by eric:
        + new "-e" option of tic.
        + fix for "infocmp -e".
        + restore working-directory in read_termcap.c
        + split lib_kernel.c, lib_setup.c and names.c in order to reduce
          overhead for programs that use only termcap features.

960418  - snapshot
        + use autoconf 2.9
        + fix for AIX 3.2.5 (must define _POSIX_SOURCE to get termios struct
          definitions via <termios.h>, modified macros in lib_raw.c to avoid
          K&R-style substitution)
        > patches 293, 294 by eric:
        + mods to wgetch() in cooked mode
        + corrected askuser() logic in tset
        + correct interaction of endwin() with mouse processing
        + added trace support for TTY flags

960406
        + fixes for NeXT, ISC and HPUX auto-configure
        + autogenerate development header-dependencies (config.h, *.priv.h)
        + corrected single-column formatting of "use=" (e.g., in tic)
        + modify tic to read full terminfo-names
        + corrected divide-by-zero that caused hang (or worse) when redirecting output
        + modify tic to generate directories only as-needed (and corrected
          instance of use of data from function that had already returned).

### ncurses-1.9.8a -> 1.9.9e

* fixed broken wsyncup()/wysncdown(), as a result wnoutrefresh() now has
  copy-changed-lines behavior.
* added and documented wresize() function.
* more fixes to LOWER-RIGHT corner handling.
* changed the line-breakout optimization code to allow some lines to be
  emitted before the first check.
* added option for tic to use symbolic instead of hard links (for AFS)
* fix to restore auto-wrap mode.
* trace level can be controlled by environment variable.
* better handling of NULs in terminal descriptions.
* improved compatibility with observed SVR4 behavior.
* the refresh behavior of over-lapping windows is now more efficient and
  behaves like SVR4.
* use autoconf 2.7, which results in a working setup for SCO 5.0.
* support for ESCDELAY.
* small fixes for menu/form code.
* the test directory has its own configure.
* fixes to pads when optimizing scrolling.
* fixed several off-by-one bugs.
* fixes for termcap->terminfo translation; less restrictions more correct
  behavior.

### ncurses-1.9.7 -> 1.9.8a

* teach infocmp -i to recognize ECMA highlight sequences
* infocmp now dumps all SVr4 termcaps (not just the SVr4 ones) on -C
* support infocmp -RBSD.
* satisfy XSI Curses requirement that every macro be available as a function.
* This represents the last big change to the public interface of ncurses. The
  ABI_VERSION has now been set at 3.0 and should stay there barring any great
  catastrophies or acts of God.
* The C++ has been cleaned up in reaction to the changes to satisfy XSI's
  requirements.
* libncurses now gets linked to libcurses to help seamless emulation
  (replacement) of a vendor's curses. --disable-overwrite turns this behavior
  off.

### ncurses-1.9.6 -> 1.9.7

* corrected return values of setupterm()
* Fixed some bugs in tput (it does padding now)
* fixed a bug in tic that made it do the wrong thing on entries with more than
  one `use' capability.
* corrected the screen-size calculation at startup time to alter the
  numeric capabilities as per SVr4, not just LINES and COLS.
* toe(1) introduced; does what infocmp -T used to.
* tic(1) can now translate AIX box1 and font[0123] capabilities.
* tic uses much less core, the dotic.sh kluge can go away now.
* fix read_entry() and write_entry() to pass through cancelled capabilities OK.
* Add $HOME/.terminfo as source/target directory for terminfo entries.
* termcap compilation now automatically dumps an entry to $HOME/.terminfo.
* added -h option to toe(1).
* added -R option to tic(1) and infocmp(1).
* added fallback-entry-list feature.
* added -i option to infocmp(1).
* do a better job at detecting if we're on SCO.

### ncurses-1.9.5 -> 1.9.6

* handling of TERMCAP environment variables now works correctly.
* various changes to shorten termcap translations to less that 1024 chars.
* tset(1) added
* mouse support for xterm.
* most data tables are now const and accordingly live in shareable text space.
* Obey the XPG4/SVr4 practice that echo() is initally off.
* tic is much better at translating XENIX and AIX termcap entries now.
* tic can interpret ko capabilities now.
* integrated Juergen Pfeifer's forms library.
* taught write_entry() how not to write more than it needs to; this change
  reduces the size of the terminfo tree by a full 26%!
* infocmp -T option added.
* better warnings about historical tic quirks from tic.

### ncurses 1.9.4 -> 1.9.5

* menus library is now included with documentation.
* lib_mvcur has been carefully profiled and tuned.
* Fixed a ^Z-handling bug that was tanking lynx(1).
* HJ Lu's patches for ELF shared libraries under Linux
* terminfo.src 9.8.2
* tweaks for compiling in seperate directories.
* Thomas Dickey's patches to support NeXT's brain-dead linker
* Eric Raymond's patches to fix problems with long termcap entries.
* more support for shared libraries under SunOS and IRIX.

### ncurses 1.9.3 -> 1.9.4

* fixed an undefined-order-of-evaluation bug in lib_acs.c
* systematically gave non-API public functions and data an _nc_ prefix.
* integrated Juergen Pfeifer's menu code into the distribution.
* totally rewrote the knight test game's interface

### ncurses 1.9.2c -> 1.9.3

* fixed the TERMCAP_FILE Support.
* fixed off-by-one errors in scrolling code
* added tracemunch to the test tools
* took steps to cut the running time of make install.data

### ncurses 1.9.2c -> 1.9.2d

* revised 'configure' script to produce libraries for normal, debug,
  profile and shared object models.

### ncurses 1.9.1 -> 1.9.2

* use 'autoconf' to implement 'configure' script.
* panels support added
* tic now checks for excessively long termcap entries when doing translation
* first cut at eliminating namespace pollution.

### ncurses 1.8.9 -> 1.9

* cleanup gcc warnings for the following: use size_t where 'int' is not
  appropriate, fixed some shadowed variables, change attr_t to compatible with
  chtype, use attr_t in some places where it was confused with 'int'.
* use chtype/attr_t casts as appropriate to ensure portability of masking
  operations.
* added-back waddchnstr() to lib_addstr.c (it had been deleted).
* supplied missing prototypes in curses.h
* include <termcap.h> in lib_termcap.c to ensure that the prototypes
  are consistent (they weren't).
* corrected prototype of tputs in <termcap.h>
* rewrote varargs parsing in lib_tparm.c (to avoid referencing memory
  that may be out of bounds on the stack) -- Purify found this.
* ensure that TRACE is defined in lib_trace.c (to solve prototype
  warnings from gcc).
* corrected scrolling-region size in 'mvcur_wrap()'
* more spelling fixes
* use 'calloc()' to allocate WINDOW struct in lib_newwin.c (Purify).
* set default value for SP->_ofp in lib_set_term.c (otherwise SunOS dumps
  core in init_acs()).
* include <errno.h> in write_entry.c (most "braindead" includes declare errno
  in that file).

### ncurses 1.8.8 -> 1.8.9

* compile (mostly) clean with gcc 2.5.8 -Wall -Wstrict-prototypes
  -Wmissing-prototypes -Wconversion and using __attribute__ to flush out
  non-portable use of "%x" for pointers, or for chtype data (which is declared
  as a long).
* modified doupdate to ensure that typahead was turned on before attempting
  select-call (otherwise, some implementations hang).
* added trace mask TRACE_FIFO, use this in lib_getch.c to allow finer
  resolution of traces.
* improved bounds checking on several critical functions.
* the data directory has been replaced by the new master terminfo file.
* -F file-comparison option added to infocmp.
* compatibility with XSI Curses is now documented in the man bages.
* wsyncup/wsyncdown functions are reliable now; subwindow code in general
  is much less flaky.
* capabilities ~msgr, tilde_glitch, insert_padding, generic_type, no_pad_char,
  memory_above, memory_below, and hard_copy are now used properly.
* cursor-movement optimization has been completely rewritten.
* vertical-movement optimization now uses hardware scrolling, il, dl.

### ncurses 1.8.7 -> 1.8.8
* untic no longer exists, infocmp replaces it.
* tic can understand termcap now, especially if it is called captoinfo.
* The Linux Standard Console terminfo entry is called linux insead of console.
  It also uses the kernel's new method of changing charsets.
* initscr() will EXIT upon error (as the docs say) This wil mostly happen if
  you try to run on an undefined terminal.
* I can get things running on AIX but tic can't compile terminfo. I have to
  compile entries on another machine. Volunteers to hunt this bug are welcome.
* wbkgd() and wbkgdset() can be used to set a windows background to color.
  wclear()/werase() DO NOT use the current attribute to clear the screen.
  This is the way SVR4 curses works. PDCurses 2.1 is broken in this respect,
  though PDCurses 2.2 has been fixed.
* cleaned up the test/ directory.
* test/worm will segfault after quite a while.
* many spelling corrections courtesy of Thomas E. Dickey

### ncurses 1.8.6 -> 1.8.7
* cleaned up programs in test/ directory.
* fixed wbkgdset() macro.
* modified getstr() to stop it from advancing cursor in noecho mode.
* modified linux terminfo entry to work with the latest kernel to get
  the correct alternate character set.
* also added a linux-mono entry for those running on monochrome screens.
* changed initscr() so that it behaves like the man page says it does.
  this fixes the problem with programs in test/ crashing with SIGSEV if
  a terminal is undefined.
* modified addch() to avoid using any term.h #define's
* removed duplicate tgoto() in lib_tparm.c
* modified dump_entry.c so that infocmp deals correctly with ',' in acsc
* modified delwin() to correctly handle deleting subwindows.
* fixed Makefile.dist to stop installing an empty curses.h
* fixed a couple of out-of-date notes in man pages.

### ncurses 1.8.5 -> 1.8.6
* Implemented wbkgd(), bkgd(), bkgdset(), and wbkgdset().
* The handling of attributes has been improved and now does not turn off color
  if other attributes are turned off.
* scrolling code is improved. Scrolling in subwindows is still broken.
* Fixes to several bugs that manifest them on platforms other than Linux.
* The default to meta now depends on the status of the terminal when ncurses
  is started.
* The interface to the tracing facility has changed.  Instead of the pair of
  functions traceon() and traceoff(), there is just one function trace() which
  takes a trace mask argument.  The trace masks, defined in curses.h, are
  as follows:

        #define TRACE_DISABLE   0x00    /* turn off tracing */
        #define TRACE_ORDINARY  0x01    /* ordinary trace mode */
        #define TRACE_CHARPUT   0x02    /* also trace all character outputs */
        #define TRACE_MAXIMUM   0x0f    /* maximum trace level */

  More trace masks may be added, or these may be changed, in future releases.
* The pad code has been improved and the pad test code in test/ncurses.c has
  been improved.
* The prototype ansi entry has been changed to work with a wider variety
  of emulators.
* Fix to the prototype ansi entry that enables it to work with PC emulators
  that treat trailing ";m" in a highlight sequence as ";0m"; this doesn't
  break operation with any emulators.
* There are now working infocmp, captoinfo, tput, and tclear utilities.
* tic can now compile entries in termcap syntax.
* Core-dump bug in pnoutrefresh fixed.
* We now recognize and compile all the nonstandard capabilities in Ross
  Ridge's mytinfo package (rendering it obsolete).
* General cleanup and documentation improvements.
* Fixes and additions to the installation-documentation files.
* Take cursor to normal mode on endwin.

### ncurses 1.8.4 -> 1.8.5
* serious bugs in updating screen which caused erratic non-display,
  fixed.
* fixed initialization for getch() related variable which cause
  unpredictable results.
* fixed another doupdate bug which only appeared if you have
  parm_char.
* implemented redrawln() and redrawwin().
* implemented winsnstr() and related functions.
* cleaned up insertln() and deleteln() and implemented (w)insdeln().
* changed Makefile.dist so that installation of man pages will
  take note of the terminfo directory.
* fixed Configure (removed the mysterious 'X').
* Eric S. Raymond fixed the script.* files so that they work with
  stock awk.

#### ncurses 1.8.3 -> 1.8.4 #### ####
* fixed bug in refreshing the screen after return from shell_mode.
  There are still problems but they don't manifest themselves on
  my machine (Linux 0.99.14f).
* added wgetnstr() and modified things accordingly.
* fixed the script.src script.test to work with awk not just gawk.
* Configure can now take an argument of the target system.
* added test/ncurses.c which replaces several other programs and
  performs more testing.
[Thanks to Eric S Raymond for the last 4]
* more fixes to lib_overlay.c and added test/over.c to illustrate
  how it works.
* fixed ungetch() to take int instead of ch.
* fixes to cure wgetch() if flushinp() is called.

One note I forgot to mention in 1.8.3 is that tracing is off by
default starting in the version. If you want tracing output, put
traceon(); in your code and link with -ldcurses.

#### ncurses 1.8.2 -> ncurses 1.8.3 #### ####
MAJOR CHANGES:
1) The order of capabilities has been changed in order to achieve
binary compatibility with SVR4 terminfo database. This has the
unfortunate effect of breaking application currently linked with
ncurses. To ensure correct behavior, recompile all such programs.
Most programs using color or newer capabilities will break, others
will probably continue to work ok.

2) Pavel Curtis has renounced his copyright to the public domain.
This means that his original sources (posted to comp.sources.unix,
volume 1) are now in the public domain.  The current sources are
NOT in the public domain, they are copyrighted by me.  I'm
entertaining ideas on what the new terms ncurses is released under.

3) Eric S. Raymond has supplied a complete set of man pages for
ncurses in ?roff format. They will eventually replace most of the
current docs. Both sets are included in this release.

Other changes and notes from 1.8.2 include:
* SIGSEGV during scrolling no longer occurs.
* Other problems with scrolling and use of idl have been corrected.
* lib_getch.c has been re-written and should perform flawlessly.
  please use test/getch.c and any other programs to test this.
* ripoffline() is implemented (Thanks to Eric) and slk_ functions
  changed accordingly.
* I've added support for terminals that scroll if you write in the
  bottom-right corner.
* fixed more bugs in pads code. If anybody has a program that uses
  pads I'd love a copy.
* correct handling for terminal with back_color_erase capability
  (such as Linux console, and most PC terminals)
* ^Z handling apparently didn't work (I should never trust code
  sent me to me without extensive testing). It now seems to be
  fixed. Let me know if you have problems.
* I've added support for Apollo and NeXT, but it may still be
  incomplete, especially when dealing with the lack of POSIX
  features.
* scrolling should be more efficient on terminals with idl
  capabilities. Please see src/lib_scroll.c for more notes.
* The line drawing routines were offset by 1 at both ends. This
  is now fixed.
* added a few missing prototypes and macros (e.g. setterm())
* fixed code in src/lib_overlay.c which used to crash.
* added a few more programs in test/ The ones from the PDCurses
  package are useful, especially if you have SVR4 proper. I'm
  interested in the results you get on such a systems (Eric? ;-).
  They already exposed certain bugs in ncurses.
* See src/README for porting notes.
* The C++ code should really replace ncurses.h instead of working
  around it. It should avoid name-space clashes with nterm.h (use
  rows instead of lines, etc.)
* The C++ should compile ok. I've added explicit rules to the
  Makefile because no C++ defaults are documented on the suns.
* The docs say that echo() and nocbreak() are mutually exclusive.
  At the moment ncurses will switch to cbreak() if the case above
  occurs. Should it continue to do so? How about echo() and noraw()?
* PDCurses seem to assume that wclear() will use current attribute
  when clearing the screen. According to Eric this is not the case
  with SVR4.
* I have discovered, to my chagrin, SunOS 4.x (and probably other systems)
  * doesn't have vsscanf and God knows what else!  I've will do a vsscanf().
* I've also found out that the src/script.* rely on gawk and will not
  work with stock awk or even with nawk. Any changes are welcome.
* Linux is more tolerant of NULL dereferences than most systems. This
  fact was exposed by hanoi.
* ncurses still seems inefficient in drawing the screen on a serial
  link between Linux and suns. The padding may be the culprit.
* There seems to be one lingering problem with doupdate() after shelling
  out. Despite the fact the it is sending out the correct information
  to the terminal, nothing takes effect until you press ^L or another
  refresh takes place. And yes, output does get flushed.

#### ncurses 1.8.1 -> ncurses 1.8.2 #### Nov 28, 1993 ####

* added support for SVR4 and BSDI's BSD/386.
* major update and fix to scrolling routine.
* MORE fixes to stuff in lib_getch.c.
* cleaned-up configuration options and can now generate
        Config.* files through an awk script.
* changed setupterm() so it can be called more than once,
        add added set_curterm(), del_curterm().
* a few minor cleanups.
* added more prototypes in curses.h

#### ncurses 1.8 -> ncurses 1.8.1 #### Nov 4, 1993 ####

* added support for NeXTStep 3.0
* added termcap emulation (not well tested).
* more complete C++ interface to ncurses.
* fixed overlay(), overwrite(), and added copywin().
* a couple of bug fixes.
* a few code cleanups.

#### ncurses 0.7.2/0.7.3 -> ncurses 1.8 #### Aug 31, 1993 ####

* The annoying message "can't open file." was due to missing
  terminfo entry for the used terminal. It has now been
  replaced by a hopefully more helpful message.
* Problems with running on serial lines are now fixed.
* Added configuration files for SunOS, Linux, HP/UX, Ultrix,
  386bsd/BSDI (if you have others send'em to me)
* Cleaner Makefile.
* The documentation in manual.doc is now more uptodate.
* update optimization and support for hp terminals, and 386bsd
  console driver(s).
* mvcur optimization for terminals without cursor addressing
  (doesn't work on Linux)
* if cursor moved since last update, getch() will refresh the
  screen before working.
* getch() & alarm() can now live together. in 0.7.3 a signal
  interrupted getch() (bug or feature?) now the getch is
  restarted.
* scanw() et all were sick, now fixed.
* support for 8-bit input (use meta()).
* added default screen size to all terminfos.
* added c++ Ncursesw class.
* several minor bug fixes.

#### ncurses 0.7.2 -> ncurses 0.7.3 #### May 27, 1993 ####

* Config file to cope with different platforms (386BSD, BSDI, Ultrix, SunOS)
* more fixes to lib_getch.c
* changes related to Config

#### ncurses 0.7 -> ncurses 0.7.2 #### May 22, 1993 ####

* docs updated slightly (color usage is now documented).
* yet another fix for getch(), this one fixes problems with ESC being swallowed
  if another character is typed before the 1 second timeout.
* Hopefully, addstr() and addch() are 8-bit clean.
* fixed lib_tparm.c to use stdarg.h (should run on suns now)
* order of capabilities changed to reflect that specified in SYSV
  this will allow for binary-compatibility with existing terminfo dbs.
* added halfdelay()
* fixed problems with asc_init()
* added A_PROTECT and A_INVIS
* cleaned up vidputs()
* general cleanup of the code
* more attention to portability to other systems
* added terminfos for hp70092 (wont work until changes to lib_update.c are
  made) and 386BSD pcvt drivers.

Thanks to Hellmuth Michaelis for his help.
optimization code is slated for the next major release, stay tuned!

#### ncurses 0.6/0.61 -> ncurses 0.7 #### April 1, 1993
Please note that the next release will be called 1.8. If you want to know about
the rationale drop me a line.

Included are several test programs in test/.
I've split up the panels library, reversi, tetris, sokoban. They are now
available separately from netcom.com:pub/zmbenhal/

* color and ACS support is now fully compatible with SYSV at the terminfo
  level.
* Capabilities now includes as many SYSV caps I could find.
* tigetflag,tigetnum,tigetstr functions added.
* boolnames, boolfnames, boolcodes numnames, numfnames, numcodes,
  strnames, strfnames, strcodes arrays are now added.
* keyname() is added.
* All function keys can be defined in terminfo entries.
* fixed lin_tparm.c to behave properly.
* terminfo entries for vt* and xterm are included (improvements are welcome)
* more automation in handling caps and keys.
* included fixes from 0.6.1
* added a few more missing functions.
* fixed a couple of minor bugs.
* updated docs JUST a little (still miles behind in documenting the newer
        features).

#### ncurses 0.6 -> ncurses 0.61 ####

1) Included the missing data/console.

2) allow attributes when drawing boxes.

3) corrected usage of win->_delay value.

4) fixed a bug in lib_getch.c. if it didn't recognize a sequence it would
        simply return the last character in the sequence. The correct
        behavior is to return the entire sequence one character at a time.

#### ncurses0.5 -> ncurses0.6 #### March 1, 1993 ####
* removed _numchngd from struct _win_st and made appropriate changes.
* rewritten kgetch() to remove problems with interaction between alarm and
  read(). It caused SIGSEGV every now and then.
* fixed a bug that miscounted the numbers of columns when updating.
  (in lib_doupdate.c(ClrUpdate() -- iterate to columns not columns-1)
* fixed a bug that cause the lower-right corner to be incorrect.
  (in lib_doupdate.c(putChar() -- check against columns not columns-1)
* made resize() and cleanup() static to lib_newterm.c
* added notimeout().
* added timeout() define in curses.h
* added more function prototypes and fixed napms.
* added use_env().
* moved screen size detection to lib_setup.c.
* fixed newterm() to confirm to prototype.
* removed SIGWINCH support as SYSV does not define its semantics.
* cleaned-up lib_touch.c
* added waddnstr() and relatives.
* added slk_* support.
* fixed a bug in wdeleteln().
* added PANEL library.
* modified Makefile for smoother installation.
* terminfo.h is really term.h

#### ncurses 0.4 -> ncurses 0.5 #### Feb 14, 1993 ####
* changed _win_st structure to allow support for missing functionality.
* Addition of terminfo support for all KEY_*.
* Support for nodelay(), timeout(), notimeout().
* fixed a bug with the keypad char reading that did not return ESC until
  another key is pressed.
* nl mapping no longer occur on output (as should be)
  fixed bug '\n' no causing a LF.
* fixed bug that reset terminal colors regardless of whether we use color
  or not.
* Better support for ACS (not quite complete).
* fixed bug in wvline().
* added curs_set().
* changed from signal() to sigaction().
* re-included the contents of important.patch into source.

#### ncurses 0.3 -> ncurses 0.4 #### Feb 3, 1993 ####
* Addition of more KEY_* definitions.
* Addition of function prototypes.
* Addition of several missing functions.
* No more crashes if screen size is undefined (use SIGWINCH handler).
* added a handler to cleanup after SIGSEGV (hopefully never needed).
* changed SRCDIR from /etc/term to /usr/lib/terminfo.
* renamed compile/dump to tic/untic.
* New scrolling code.
* fixed bug that reversed the sense of nl() and nonl().

#### ncurses 0.2 -> ncurses 0.3  #### Jan 20, 1993 ####
* more support for color and graphics see test/ for examples.
* fixed various files to allow correct update after shelling out.
* more fixes for updates.
* no more core dumps if you don't have a terminfo entry.
* support for LINES and COLUMNS environment variables.
* support for SIGWINCH signal.
* added a handler for SIGINT for clean exits.

#### ncurses 0.1 -> ncurses 0.2 #### Aug 14, 1992 ####
* support for color.
* support for PC graphic characters.
* lib_trace.c updated to use stdarg.h and vprintf routines.
* added gdc.c (Great Digital Clock) as an example of using color.

#### ncurses -> ncurses 0.1 #### Jul 31, 1992 ####
* replacing sgtty stuff by termios stuff.
* ANSIfication of some functions.
* Disabling cost analysis 'cause it's incorrect.
* A quick hack for a terminfo entry.