X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=NEWS;h=d554a553cbb7f48bcf4eb12776db9ec84b07cced;hp=d52a33b99cb0ca76de132cff0e188854b7225a7f;hb=8f527f87c0b979d9c2598ef5c3394463af288468;hpb=0be808514502f3149b379d036ab3a83cbb4d4c02;ds=sidebyside diff --git a/NEWS b/NEWS index d52a33b9..d554a553 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,5 @@ ------------------------------------------------------------------------------- --- Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. -- +-- Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. -- -- -- -- Permission is hereby granted, free of charge, to any person obtaining a -- -- copy of this software and associated documentation files (the -- @@ -25,7 +25,7 @@ -- sale, use or other dealings in this Software without prior written -- -- authorization. -- ------------------------------------------------------------------------------- --- $Id: NEWS,v 1.1099 2007/03/11 00:10:14 tom Exp $ +-- $Id: NEWS,v 1.1261 2008/08/04 18:22:11 tom Exp $ ------------------------------------------------------------------------------- This is a log of changes that ncurses has gone through since Zeyd started @@ -45,6 +45,581 @@ See the AUTHORS file for the corresponding full names. Changes through 1.9.9e did not credit all contributions; it is not possible to add this information. +20080804 + + modify _nc_panelhook() data to account for a permanent memory leak. + + fix memory leaks in test/demo_menus + + fix most warnings from Klocwork tool (report by Larry Zhou). + + modify configure script CF_XOPEN_SOURCE macro to add case for + "dragonfly" from xterm #236 changes. + + modify configure script --with-hashed-db to let $LIBS override the + search for the db library (prompted by report by Samson Pierre). + +20080726 + + build-fixes for gcc 4.3.1 (changes to gnat "warnings", and C inlining + thresholds). + +20080713 + + build-fix (reports by Christian Ebert, Funda Wang). + +20080712 + + compiler-warning fixes for Solaris. + +20080705 + + use NCURSES_MOUSE_MASK() in definition of BUTTON_RELEASE(), etc., to + make those work properly with the "--enable-ext-mouse" configuration + (cf: 20050205). + + improve documentation of build-cc options in INSTALL. + + work-around a bug in gcc 4.2.4 on AIX, which does not pass the + -static/-dynamic flags properly to linker, causing test/bs to + not link. + +20080628 + + correct some ifdef's needed for the broken-linker configuration. + + make debugging library's $BAUDRATE feature work for termcap + interface. + + make $NCURSES_NO_PADDING feature work for termcap interface (prompted + by comment on FreeBSD mailing list). + + add screen.mlterm terminfo entry -TD + + improve mlterm and mlterm+pcfkeys terminfo entries -TD + +20080621 + + regenerated html documentation. + + expand manpage description of parameters for form_driver() and + menu_driver() (prompted by discussion with Adam Spragg). + + add null-pointer checks for cur_term in baudrate() and + def_shell_mode(), def_prog_mode() + + fix some memory leaks in delscreen() and wide acs. + +20080614 + + modify test/ditto.c to illustrate multi-threaded use_screen(). + + change CC_SHARED_OPTS from -KPIC to -xcode=pic32 for Solaris. + + add "-shared" option to MK_SHARED_LIB for gcc on Solaris (report + by Poor Yorick). + +20080607 + + finish changes to wgetch(), making it switch as needed to the + window's actual screen when calling wrefresh() and wgetnstr(). That + allows wgetch() to get used concurrently in different threads with + some minor restrictions, e.g., the application should not delete a + window which is being used in a wgetch(). + + simplify mutex's, combining the window- and screen-mutex's. + +20080531 + + modify wgetch() to use the screen which corresponds to its window + parameter rather than relying on SP; some dependent functions still + use SP internally. + + factor out most use of SP in lib_mouse.c, using parameter. + + add internal _nc_keyname(), replacing keyname() to associate with a + particular SCREEN rather than the global SP. + + add internal _nc_unctrl(), replacing unctrl() to associate with a + particular SCREEN rather than the global SP. + + add internal _nc_tracemouse(), replacing _tracemouse() to eliminate + its associated global buffer _nc_globals.tracemse_buf now in SCREEN. + + add internal _nc_tracechar(), replacing _tracechar() to use SCREEN in + preference to the global _nc_globals.tracechr_buf buffer. + +20080524 + + modify _nc_keypad() to make it switch temporarily as needed to the + screen which must be updated. + + wrap cur_term variable to help make _nc_keymap() thread-safe, and + always set the screen's copy of this variable in set_curterm(). + + restore curs_set() state after endwin()/refresh() (report/patch + Miroslav Lichvar) + +20080517 + + modify configure script to note that --enable-ext-colors and + --enable-ext-mouse are not experimental, but extensions from + the ncurses ABI 5. + + corrected manpage description of setcchar() (discussion with + Emanuele Giaquinta). + + fix for adding a non-spacing character at the beginning of a line + (report/patch by Miroslav Lichvar). + +20080503 + + modify screen.* terminfo entries using new screen+fkeys to fix + overridden keys in screen.rxvt (Debian #478094) -TD + + modify internal interfaces to reduce wgetch()'s dependency on the + global SP. + + simplify some loops with macros each_screen(), each_window() and + each_ripoff(). + +20080426 + + continue modifying test/ditto.c toward making it demonstrate + multithreaded use_screen(), using fifos to pass data between screens. + + fix typo in form.3x (report by Mike Gran). + +20080419 + + add screen.rxvt terminfo entry -TD + + modify tic -f option to format spaces as \s to prevent them from + being lost when that is read back in unformatted strings. + + improve test/ditto.c, using a "talk"-style layout. + +20080412 + + change test/ditto.c to use openpty() and xterm. + + add locks for copywin(), dupwin(), overlap(), overlay() on their + window parameters. + + add locks for initscr() and newterm() on updates to the SCREEN + pointer. + + finish table in curs_thread.3x manpage. + +20080405 + + begin table in curs_thread.3x manpage describing the scope of data + used by each function (or symbol) for threading analysis. + + add null-pointer checks to setsyx() and getsyx() (prompted by + discussion by Martin v. Lowis and Jeroen Ruigrok van der Werven on + python-dev2 mailing list). + +20080329 + + add null-pointer checks in set_term() and delscreen(). + + move _nc_windows into _nc_globals, since windows can be pads, which + are not associated with a particular screen. + + change use_screen() to pass the SCREEN* parameter rather than + stdscr to the callback function. + + force libtool to use tag for 'CC' in case it does not detect this, + e.g., on aix when using CC=powerpc-ibm-aix5.3.0.0-gcc + (report/patch by Michael Haubenwallner). + + override OBJEXT to "lo" when building with libtool, to work on + platforms such as AIX where libtool may use a different suffix for + the object files than ".o" (report/patch by Michael Haubenwallner). + + add configure --with-pthread option, for building with the POSIX + thread library. + +20080322 + + fill in extended-color pair two more places in wbkgrndset() and + waddch_nosync() (prompted by Sedeno's patch). + + fill in extended-color pair in _nc_build_wch() to make colors work + for wide-characters using extended-colors (patch by Alejandro R + Sedeno). + + add x/X toggles to ncurses.c C color test to test/demo + wide-characters with extended-colors. + + add a/A toggles to ncurses.c c/C color tests. + + modify test/ditto.c to use use_screen(). + + finish modifying test/rain.c to demonstrate threads. + +20080308 + + start modifying test/rain.c for threading demo. + + modify test/ncurses.c to make 'f' test accept the f/F/b/F/ toggles + that the 'F' accepts. + + modify test/worm.c to show trail in reverse-video when other threads + are working concurrently. + + fix a deadlock from improper nesting of mutexes for windowlist and + window. + +20080301 + + fixes from 20080223 resolved issue with mutexes; change to use + recursive mutexes to fix memory leak in delwin() as called from + _nc_free_and_exit(). + +20080223 + + fix a size-difference in _nc_globals which caused hanging of mutex + lock/unlock when termlib was built separately. + +20080216 + + avoid using nanosleep() in threaded configuration since that often + is implemented to suspend the entire process. + +20080209 + + update test programs to build/work with various UNIX curses for + comparisons. This was to reinvestigate statement in X/Open curses + that insnstr and winsnstr perform wrapping. None of the Unix-branded + implementations do this, as noted in manpage (cf: 20040228). + +20080203 + + modify _nc_setupscreen() to set the legacy-coding value the same + for both narrow/wide models. It had been set only for wide model, + but is needed to make unctrl() work with locale in the narrow model. + + improve waddch() and winsch() handling of EILSEQ from mbrtowc() by + using unctrl() to display illegal bytes rather than trying to append + further bytes to make up a valid sequence (reported by Andrey A + Chernov). + + modify unctrl() to check codes in 128-255 range versus isprint(). + If they are not printable, and locale was set, use a "M-" or "~" + sequence. + +20080126 + + improve threading in test/worm.c (wrap refresh calls, and KEY_RESIZE + handling). Now it hangs in napms(), no matter whether nanosleep() + or poll() or select() are used on Linux. + +20080119 + + fixes to build with --disable-ext-funcs + + add manpage for use_window and use_screen. + + add set_tabsize() and set_escdelay() functions. + +20080112 + + remove recursive-mutex definitions, finish threading demo for worm.c + + remove a redundant adjustment of lines in resizeterm.c's + adjust_window() which caused occasional misadjustment of stdscr when + softkeys were used. + +20080105 + + several improvements to terminfo entries based on xterm #230 -TD + + modify MKlib_gen.sh to handle keyname/key_name prototypes, so the + "link_test" builds properly. + + fix for toe command-line options -u/-U to ensure filename is given. + + fix allocation-size for command-line parsing in infocmp from 20070728 + (report by Miroslav Lichvar) + + improve resizeterm() by moving ripped-off lines, and repainting the + soft-keys (report by Katarina Machalkova) + + add clarification in wclear's manpage noting that the screen will be + cleared even if a subwindow is cleared (prompted by Christer Enfors + question). + + change test/ncurses.c soft-key tests to work with KEY_RESIZE. + +20071222 + + continue implementing support for threading demo by adding mutex + for delwin(). + +20071215 + + add several functions to C++ binding which wrap C functions that + pass a WINDOW* parameter (request by Chris Lee). + +20071201 + + add note about configure options needed for Berkeley database to the + INSTALL file. + + improve checks for version of Berkeley database libraries. + + amend fix for rpath to not modify LDFLAGS if the platform has no + applicable transformation (report by Christian Ebert, cf: 20071124). + +20071124 + + modify configure option --with-hashed-db to accept a parameter which + is the install-prefix of a given Berkeley Database (prompted by + pierre4d2 comments). + + rewrite wrapper for wcrtomb(), making it work on Solaris. This is + used in the form library to determine the length of the buffer needed + by field_buffer (report by Alfred Fung). + + remove unneeded window-parameter from C++ binding for wresize (report + by Chris Lee). + +20071117 + + modify the support for filesystems which do not support mixed-case to + generate 2-character (hexadecimal) codes for the lower-level of the + filesystem terminfo database (request by Michail Vidiassov). + + add configure option --enable-mixed-case, to allow overriding the + configure script's check if the filesystem supports mixed-case + filenames. + + add wresize() to C++ binding (request by Chris Lee). + + define NCURSES_EXT_FUNCS and NCURSES_EXT_COLORS in curses.h to make + it simpler to tell if the extended functions and/or colors are + declared. + +20071103 + + update memory-leak checks for changes to names.c and codes.c + + correct acsc strings in h19, z100 (patch by Benjamin C W Sittler). + +20071020 + + continue implementing support for threading demo by adding mutex + for use_window(). + + add mrxvt terminfo entry, add/fix xterm building blocks for modified + cursor keys -TD + + compile with FreeBSD "contemporary" TTY interface (patch by + Rong-En Fan). + +20071013 + + modify makefile rules to allow clear, tput and tset to be built + without libtic. The other programs (infocmp, tic and toe) rely on + that library. + + add/modify null-pointer checks in several functions for SP and/or + the WINDOW* parameter (report by Thorben Krueger). + + fixes for field_buffer() in formw library (see Redhat Bugzilla + #310071, patches by Miroslav Lichvar). + + improve performance of NCURSES_CHAR_EQ code (patch by Miroslav + Lichvar). + + update/improve mlterm and rxvt terminfo entries, e.g., for + the modified cursor- and keypad-keys -TD + +20071006 + + add code to curses.priv.h ifdef'd with NCURSES_CHAR_EQ, which + changes the CharEq() macro to an inline function to allow comparing + cchar_t struct's without comparing gaps in a possibly unpacked + memory layout (report by Miroslav Lichvar). + +20070929 + + add new functions to lib_trace.c to setup mutex's for the _tracef() + calls within the ncurses library. + + for the reentrant model, move _nc_tputs_trace and _nc_outchars into + the SCREEN. + + start modifying test/worm.c to provide threading demo (incomplete). + + separated ifdef's for some BSD-related symbols in tset.c, to make + it compile on LynxOS (report by Greg Gemmer). +20070915 + + modify Ada95/gen/Makefile to use shlib script, to simplify building + shared-library configuration on platforms lacking rpath support. + + build-fix for Ada95/src/Makefile to reflect changed dependency for + the terminal-interface-curses-aux.adb file which is now generated. + + restructuring test/worm.c, for use_window() example. + +20070908 + + add use_window() and use_screen() functions, to develop into support + for threaded library (incomplete). + + fix typos in man/curs_opaque.3x which kept the install script from + creating symbolic links to two aliases created in 20070818 (report by + Rong-En Fan). + +20070901 + + remove a spurious newline from output of html.m4, which caused links + for Ada95 html to be incorrect for the files generated using m4. + + start investigating mutex's for SCREEN manipulation (incomplete). + + minor cleanup of codes.c/names.c for --enable-const + + expand/revise "Routine and Argument Names" section of ncurses manpage + to address report by David Givens in newsgroup discussion. + + fix interaction between --without-progs/--with-termcap configure + options (report by Michail Vidiassov). + + fix typo in "--disable-relink" option (report by Michail Vidiassov). + +20070825 + + fix a sign-extension bug in infocmp's repair_acsc() function + (cf: 971004). + + fix old configure script bug which prevented "--disable-warnings" + option from working (patch by Mike Frysinger). + +20070818 + + add 9term terminal description (request by Juhapekka Tolvanen) -TD + + modify comp_hash.c's string output to avoid misinterpreting a null + "\0" followed by a digit. + + modify MKnames.awk and MKcodes.awk to support big-strings. + This only applies to the cases (broken linker, reentrant) where + the corresponding arrays are accessed via wrapper functions. + + split MKnames.awk into two scripts, eliminating the shell redirection + which complicated the make process and also the bogus timestamp file + which was introduced to fix "make -j". + + add test/test_opaque.c, test/test_arrays.c + + add wgetscrreg() and wgetparent() for applications that may need it + when NCURSES_OPAQUE is defined (prompted by Bryan Christ). + +20070812 + + amend treatment of infocmp "-r" option to retain the 1023-byte limit + unless "-T" is given (cf: 981017). + + modify comp_captab.c generation to use big-strings. + + make _nc_capalias_table and _nc_infoalias_table private accessed via + _nc_get_alias_table() since the tables are used only within the tic + library. + + modify configure script to skip Intel compiler in CF_C_INLINE. + + make _nc_info_hash_table and _nc_cap_hash_table private accessed via + _nc_get_hash_table() since the tables are used only within the tic + library. + +20070728 + + make _nc_capalias_table and _nc_infoalias_table private, accessed via + _nc_get_alias_table() since they are used only by parse_entry.c + + make _nc_key_names private since it is used only by lib_keyname.c + + add --disable-big-strings configure option to control whether + unctrl.c is generated using the big-string optimization - which may + use strings longer than supported by a given compiler. + + reduce relocation tables for tic, infocmp by changing type of + internal hash tables to short, and make those private symbols. + + eliminate large fixed arrays from progs/infocmp.c + +20070721 + + change winnstr() to stop at the end of the line (cf: 970315). + + add test/test_get_wstr.c + + add test/test_getstr.c + + add test/test_inwstr.c + + add test/test_instr.c + +20070716 + + restore a call to obtain screen-size in _nc_setupterm(), which + is used in tput and other non-screen applications via setupterm() + (Debian #433357, reported by Florent Bayle, Christian Ohm, + cf: 20070310). + +20070714 + + add test/savescreen.c test-program + + add check to trace-file open, if the given name is a directory, add + ".log" to the name and try again. + + add konsole-256color entry -TD + + add extra gcc warning options from xterm. + + minor fixes for ncurses/hashmap test-program. + + modify configure script to quiet c++ build with libtool when the + --disable-echo option is used. + + modify configure script to disable ada95 if libtool is selected, + writing a warning message (addresses FreeBSD ports/114493). + + update config.guess, config.sub + +20070707 + + add continuous-move "M" to demo_panels to help test refresh changes. + + improve fix for refresh of window on top of multi-column characters, + taking into account some split characters on left/right window + boundaries. + +20070630 + + add "widec" row to _tracedump() output to help diagnose remaining + problems with multi-column characters. + + partial fix for refresh of window on top of multi-column characters + which are partly overwritten (report by Sadrul H Chowdhury). + + ignore A_CHARTEXT bits in vidattr() and vid_attr(), in case + multi-column extension bits are passed there. + + add setlocale() call to demo_panels.c, needed for wide-characters. + + add some output flags to _nc_trace_ttymode to help diagnose a bug + report by Larry Virden, i.e., ONLCR, OCRNL, ONOCR and ONLRET, + +20070623 + + add test/demo_panels.c + + implement opaque version of setsyx() and getsyx(). + +20070612 + + corrected xterm+pcf2 terminfo modifiers for F1-F4, to match xterm + #226 -TD + + split-out key_name() from MKkeyname.awk since it now depends upon + wunctrl() which is not in libtinfo (report by Rong-En Fan). + +20070609 + + add test/key_name.c + + add stdscr cases to test/inchs.c and test_inch_wide.c + + update test/configure + + correct formatting of DEL (0x7f) in _nc_vischar(). + + null-terminate result of wunctrl(). + + add null-pointer check in key_name() (report by Andreas Krennmair, + cf: 20020901). + +20070602 + + adapt mouse-handling code from menu library in form-library + (discussion with Clive Nicolson). + + add a modification of test/dots.c, i.e., test/dots_mvcur.c to + illustrate how to use mvcur(). + + modify wide-character flavor of SetAttr() to preserve the + WidecExt() value stored in the .attr field, e.g., in case it + is overwritten by chgat (report by Aleksi Torhamo). + + correct buffer-size for _nc_viswbuf2n() (report by Aleksi Torhamo). + + build-fixes for Solaris 2.6 and 2.7 (patch by Peter O'Gorman). + +20070526 + + modify keyname() to use "^X" form only if meta() has been called, or + if keyname() is called without initializing curses, e.g., via + initscr() or newterm() (prompted by LinuxBase #1604). + + document some portability issues in man/curs_util.3x + + add a shadow copy of TTY buffer to _nc_prescreen to fix applications + broken by moving that data into SCREEN (cf: 20061230). + +20070512 + + add 'O' (wide-character panel test) in ncurses.c to demonstrate a + problem reported by Sadrul H Chowdhury with repainting parts of + a fullwidth cell. + + modify slk_init() so that if there are preceding calls to + ripoffline(), those affect the available lines for soft-keys (adapted + from patch by Clive Nicolson). + + document some portability issues in man/curs_getyx.3x + +20070505 + + fix a bug in Ada95/samples/ncurses which caused a variable to + become uninitialized in the "b" test. + + fix Ada95/gen/Makefile.in adahtml rule to account for recent + movement of files, fix a few incorrect manpage references in the + generated html. + + add Ada95 binding to _nc_freeall() as Curses_Free_All to help with + memory-checking. + + correct some functions in Ada95 binding which were using return value + from C where none was returned: idcok(), immedok() and wtimeout(). + + amend recent changes for Ada95 binding to make it build with + Cygwin's linker, e.g., with configure options + --enable-broken-linker --with-ticlib + +20070428 + + add a configure check for gcc's options for inlining, use that to + quiet a warning message where gcc's default behavior changed from + 3.x to 4.x. + + improve warning message when checking if GPM is linked to curses + library by not warning if its use of "wgetch" is via a weak symbol. + + add loader options when building with static libraries to ensure that + an installed shared library for ncurses does not conflict. This is + reported as problem with Tru64, but could affect other platforms + (report Martin Mokrejs, analysis by Tim Mooney). + + fix build on cygwin after recent ticlib/termlib changes, i.e., + + adjust TINFO_SUFFIX value to work with cygwin's dll naming + + revert a change from 20070303 which commented out dependency of + SHLIB_LIST in form/menu/panel/c++ libraries. + + fix initialization of ripoff stack pointer (cf: 20070421). + +20070421 + + move most static variables into structures _nc_globals and + _nc_prescreen, to simplify storage. + + add/use configure script macro CF_SIG_ATOMIC_T, use the corresponding + type for data manipulated by signal handlers (prompted by comments + in mailing.openbsd.bugs newsgroup). + + modify CF_WITH_LIBTOOL to allow one to pass options such as -static + to the libtool create- and link-operations. + +20070414 + + fix whitespace in curs_opaque.3x which caused a spurious ';' in + the installed aliases (report by Peter Santoro). + + fix configure script to not try to generate adacurses-config when + Ada95 tree is not built. + +20070407 + + add man/curs_legacy.3x, man/curs_opaque.3x + + fix acs_map binding for Ada95 when --enable-reentrant is used. + + add adacurses-config to the Ada95 install, based on version from + FreeBSD port, in turn by Juergen Pfeifer in 2000 (prompted by + comment on comp.lang.ada newsgroup). + + fix includes in c++ binding to build with Intel compiler + (cf: 20061209). + + update install rule in Ada95 to use mkdirs.sh + > other fixes prompted by inspection for Coverity report: + + modify ifdef's for c++ binding to use try/catch/throw statements + + add a null-pointer check in tack/ansi.c request_cfss() + + fix a memory leak in ncurses/base/wresize.c + + corrected check for valid memu/meml capabilities in + progs/dump_entry.c when handling V_HPUX case. + > fixes based on Coverity report: + + remove dead code in test/bs.c + + remove dead code in test/demo_defkey.c + + remove an unused assignment in progs/infocmp.c + + fix a limit check in tack/ansi.c tools_charset() + + fix tack/ansi.c tools_status() to perform the VT320/VT420 + tests in request_cfss(). The function had exited too soon. + + fix a memory leak in tic.c's make_namelist() + + fix a couple of places in tack/output.c which did not check for EOF. + + fix a loop-condition in test/bs.c + + add index checks in lib_color.c for color palettes + + add index checks in progs/dump_entry.c for version_filter() handling + of V_BSD case. + + fix a possible null-pointer dereference in copywin() + + fix a possible null-pointer dereference in waddchnstr() + + add a null-pointer check in _nc_expand_try() + + add a null-pointer check in tic.c's make_namelist() + + add a null-pointer check in _nc_expand_try() + + add null-pointer checks in test/cardfile.c + + fix a double-free in ncurses/tinfo/trim_sgr0.c + + fix a double-free in ncurses/base/wresize.c + + add try/catch block to c++/cursesmain.cc + +20070331 + + modify Ada95 binding to build with --enable-reentrant by wrapping + global variables (bug: acs_map does not yet work). + + modify Ada95 binding to use the new access-functions, allowing it + to build/run when NCURSES_OPAQUE is set. + + add access-functions and macros to return properties of the WINDOW + structure, e.g., when NCURSES_OPAQUE is set. + + improved install-sh's quoting. + + use mkdirs.sh rather than mkinstalldirs, e.g., to use fixes from + other programs. + +20070324 + + eliminate part of the direct use of WINDOW data from Ada95 interface. + + fix substitutions for termlib filename to make configure option + --enable-reentrant work with --with-termlib. + + change a constructor for NCursesWindow to allow compiling with + NCURSES_OPAQUE set, since we cannot pass a reference to + an opaque pointer. + +20070317 + + ignore --with-chtype=unsigned since unsigned is always added to + the type in curses.h; do the same for --with-mmask-t. + + change warning regarding --enable-ext-colors and wide-character + in the configure script to an error. + + tweak error message in CF_WITH_LIBTOOL to distinguish other programs + such as Darwin's libtool program (report by Michail Vidiassov) + + modify edit_man.sh to allow for multiple substitutions per line. + + set locale in misc/ncurses-config.in since it uses a range + + change permissions libncurses++.a install (report by Michail + Vidiassov). + + corrected length of temporary buffer in wide-character version + of set_field_buffer() (related to report by Bryan Christ). + +20070311 + + fix mk-1st.awk script install_shlib() function, broken in 20070224 + changes for cygwin (report by Michail Vidiassov). + 20070310 + increase size of array in _nc_visbuf2n() to make "tic -v" work properly in its similar_sgr() function (report/analysis by Peter