xref: /dports/cad/gtkwave/gtkwave-3.3.107/ChangeLog

3.0.0	01may06	Initial release after promotion from 1.3.86 in order to reduce
		confusion with 2.x series.
		Added user's manual pdf file to distribution in doc/.
		Added vertex and rtlbrowse for sourcecode annotation.
3.0.1	09may06	Automatically add extensions to save filenames in gtkwave.
		Cygwin compile fixes.  Add Cygwin functionality for fork()
		related ops that do in fact work properly.
3.0.2   09may06 More fixes for full function (except pthreads) in Cygwin.
		Requires usage of Cygserver if rtlbrowse is to work.
		Fixed fonts for Cygwin to improve readability.
		The Courier font is very bad looking and blitter mangled under
		cygwin.
3.0.3	29may06	Changed yylineno references in vlex.l in rtlbrowse to
		my_yylineno as newer versions of flex automatically define
		this and cause duplicate symbols.
		Saw there were still problems with courier on debian.  Also
		check for misc-fixed on non-cygwin systems just in case.
3.0.4	30may06 Added busy watch (hourglass) for long ops that lock the GUI.
		Fixed replace function in treesearch_gtk2 so it doesn't
		simply replace with the last signal.  (Iterator shouldn't
		be used the way it was.)
3.0.5	08jun06 Reworked tree structure code to handle new tree layout
		such that strings are embedded at the end of struct.  This
		reduces memory usage overall.
		Added in implicit hierarchy split on pipe character in
		symbol names as these only really happen in netlists that
		have escaped identifiers.
		For vzt and lxt2 loaders added block allocation of symbols
		and nodes during init in order to allow denser memory
		allocation as the bookkeeping overhead between allocations
		internal to malloc() is unnecessary as the number of
		elements is known at the outset.  Also removed hashing in
		aet2, lxt, lxt2, vzt as sym[hv] is unused on sorted facs.
		Removed unnecessary strlen() calls after sprintf() in the
		dumpfile loaders as the string length is known from the rc
		of sprintf.
		Fixed T_SCOPE rule in vcd.c as dotted hierarchies would
		throw off the parser as hierarchies themselves are
		(in practice) never really escaped.
		In tree.c, treenamefix() would recurse more than necessary
		such that some dotted hierarchies would cause an order of
		n squared recursion and as such never complete running
		due to the size of the hierarchy.
		Found non _2 versions of memory allocate/free being used
		in various non-library places.
		Fixed signal aliasing problems in GHW traces that have
		memories or aliased signals in ghw.c.
		Added handling for e8 datatypes and arrays in ghwlib.c
		and ghw.c.
		Updated ghwlib.c and main.c in order to handle gzip or
		bzip2 compressed files.  Extension can be .ghw, .ghw.gz,
		or .ghw.bz2 and the file will be handled properly.  Note
		that as the matchword is consulted, just .ghw can be used
		to specify a gzip or bzip2 file implicitly.
		Added ghwdump and ghwdump.1 to the distribution (from ghdl)
		as it is helpful for debugging ghw file failures.
3.0.6	14jul06	Added "Real" option for data type display as passing around
		real numbers in Verilog across modules needs to be done
		with $realtobits and $bitstoreal.
		Added scripting command flag --script in order to allow
		autosetup of things that are outside of config file control.
		This also allows doing things such as automated print jobs.
		Added --nowm to remove window manager control on most
		windows the viewer brings up.
		Added --xid to allow turning the viewer into a plug-in for
		calling by foreign applications.  This will allow integration
		of the viewer into a single window for example, with IDEs.
		Added --nomenus to remove menus for the case when used in
		conjunction with --xid and it is desired to create an
		embedded wave viewer applet that cannot initiate file I/O
		on its own.  Note that earlier versions of GTK+ cannot
		handle menu events properly from a GtkPlug.
		Fixed problem with dead memory allocations for GtkColor
		structs in color.c as found by Valgrind.
		Moved .odt version of the user's guide into doc/ rather than
		the pdf version as this is a sourcecode distribution so the
		original word processor document should be there.  The .pdf
		will still be up on the homepage on the website.
		Added example script (for use with the -S option) in the
		examples/ directory that prints some waves then exits.
		Found problem with directive-based string embedding in older
		gcc compiler versions.
		GTK+-1.2 doesn't handle GtkPlug.
3.0.7   17jul06 Added support for dualview of waveforms using GtkPlug and
		shared memory IPC through use of the "twinwave" front end.
		Updated documentation to add a section on twinwave.
3.0.8	04aug06	Modified order of flags in twinwave as appending flags
		does not work when longopt isn't used.
		Subscripted GtkItemFactoryEntry menu_items for AIX compile.
		More AIX fixes such as conditional alloca.h usage and
		not including getopt.h.
		Removed unused "bus" element from struct fac.
		Added interactive loading of vcd files with the routines in
		vcd_partial.c.  Added shmidcat to the distribition to test
		this new interactive loading functionality.
		Added real_parameter vartype (Riviera Aldec 2006.6) in all
		vcd loaders.
3.0.9	10aug06	Fixing compiler warnings across various systems.
		Minor speedup in sigcmp() in bitvec.c for EOS detection.
		Fix in vcd_partial.c loader that crashed on interactive
		loads when blank traces are present in the save file.
3.0.10	13aug06	Found inadvertant 64/32 bit conversion in regex.c that was
		from not including "debug.h" header file.
		Missing headers for gcc-3.2.x and earlier dealing with
		select().
		Converted fgetmalloc() to use vlists in order to cut
		down on the backflips and traversal required for the old
		one character per struct method.
		Added VCD recoder that stores the VCD in memory using a
		new recoding scheme rather than histents.  HistEnt structs
		are created as needed.  The old VCD loader is still used for
		--interactive, or if --legacy is used at the command line.
		Added dynamic zlib compression support to VCD recoder and
		vlist_compression_depth rc variable.  -1 disables, 0-9
		mirror zlib compression depths.
3.0.11	12sep06	Updated documentation to include section on VCD recoding
		strategy and LXT (version 1) file format.
		Removed unnecessary mallocs and functions in vcd_recoder.c.
		Cleanup of all warnings with gcc -pedantic in gcc3
		excluding long long integer constant and string constant
		length warnings.
		Disabled splash screen when loading VCD from stdin.
		Cygwin compile fixes (3.0.10 broke the compile).
3.0.12	19sep06	Updated production rule in verilog.g to handle compiling
		parameterized components in opensparc without dying.
		Integrated a lot of compatibility fixes from Peter O'Gorman.
		Actually use config.h for better compatibility now.
		Check for endianness in vzt read/write if XDRs not available
		rather than assuming windows will byte reverse.
		Fixed single time read in vzt_read.c as it wasn't working
		properly in rtlbrowse.
		Added -f (insert args from file) option to vertex.
3.0.13	06oct06	Updated odt file documentation to make chapter-like page
		breaks.
		Updated lxt2vcd and vzt2vcd to emit proper VCD headers for
		other tools that expect them.
		Added attempt_vecmatch() in bitvec.c to match vectors based
		on numbers inside nets in order to match on vectors inside
		of flattened netlist latches (e.g., top.xyz[0:7]_Z).
		Fixed regex compare on illegal regexs that caused viewer
		crash (e.g., when comparing on a single left bracket or
		any other illegal regex).
3.0.14	17oct06	Fixed vztminer and lxt2miner so not specifying -n actually
		works.  Updated manpages and UM for those executables to
		fix description errors.
		Now can snap cursor to named markers--this was overlooked.
		Changed recoder scheme for single bits slightly in order
		to pack 2 more bits in for 0/1 transitions.  This implies
		that 0..31 timesteps can be encoded in 1 byte for the
		common case.
3.0.15	27oct06	Added getopt_long from GNU project.
		Fixed broken compile under GTK1 for rtlbrowse makefile.
		Now can recoalesce bitblasted vectors in rtlbrowse.
		Updated finalize in vcd recoder to add fake 'x' vch for
		non-aliased facilities.  Normally all facs are initialized,
		but noticed that libvcddump doesn't do this.
3.0.16	13nov06	Patches to remove some compile warnings under Cygwin.
		Changed maxdata linker flag for AIX to allow 3.25GB of
		data segment area for AIX5.3.
		Changed unsigned integer splay comparisons in vzt_write.c
		for a slight speedup.
		Updated configure patch scripts to patch over a "LEX = :"
		glitch for AIX5.3 and also to use gcc in AIX for the pccts
		compile because of xlc incompatibilities with it.
		Fixed bug in draw_hptr_trace_vector_analog() that would
		cause crashes on pure real vectors when zoomed out fully.
		Added dynamic tooltips on current marker values for both
		the left and middle mouse buttons (not tested for Win32
		yet so disabled there).
		Added preliminary support for changing menu accelerators
		through the rc file with an "accel" statement.
3.0.17	27nov06	Fix in vcd recoder for SystemC which doesn't emit time
		zero in the initial dumpvars.  (would be needed anyway for
		dumpers that for some reason don't as the 1st value
		change collapses into the second)
3.0.18  28nov06	Fix in vcd saver for when units are in seconds: keeps
		timescale of "ss" being used instead of just "s".
		Locale problem in printing of floating point numbers fixed
		by setting up a local fixer routine in config.h for
		availability across all executables.
		Fix in all vcd loaders to handle "port" (along with other
		keywords) that appear in non-keyword parts of the $VAR
		declaration sequence.
		Fixed long standing LXT bug with integer datatype on
		trivial LXT files.  (Overflow in lt_buf decoder buffer.)
3.0.19	21dec06	More locale fixing with LC_ALL.
		Added user patches from NIIBE Yutaka to remove requirement
		for the GTK_ENABLE_BROKEN flag in GTK2 compilation.
3.0.20	21jan07	Fixed string/real handling in VCD recoder as it did not
		properly add the right-hand side endcaps which would
		crash pattern search.
		Made vcd recoder more robust to be able to handle 'b'
		value changes for string data as well as wires with
		's' type data (for FlashSim).
		Updated strace.c to allow forward/backward on strings and
		reals.
3.0.21	02feb07	Added support for in/out/inout evcd ports generated by
		dumpports in ModelSim.
		Fixed problem with hierarchy being out of order as
		treegraft needed to be followed by treesort.  This mostly
		impacted recursive hierarchy imports by only allowing
		two signals to import rather than all of them.  Also there
		was an inconsistency with the signal ordering with VCD vs
		the database formats because of this.
3.0.22	19feb07	Bumped up hash size from 65519 to 500009 entries for VCD
		parsers.
		Bumped up max VCDID fastindex size to 8M entries.
		Now use gperf for verilog datatypes for some speedup in
		gtkwave vcd loaders.
		create_sorted_table() changed to deallocate long names in
		vcd converters as the names are no longer needed once the
		writer has them.
		Fixed GTK1 makefile in src/ as twinwave had pkg-config
		for GTK2.
		Stray getopt.h include in v2l_analyzer_lxt2.h needed to
		be #ifdef'ed with HAVE_GETOPT_H for Solaris.
		XDR library -lnsl explicitly listed for Solaris.
		PATH_MAX set if not defined in verilog.g for Vertex.
		Regenerated configure for setenv()/unsetenv() presence
		which impacts Solaris (use putenv() instead).
		Regenerated configure to handle auto detect of -lnsl,
		-lrpc, and -lpthread.
		Added -c to file install in top-level makefile (Solaris).
		Use _LARGEFILE_SOURCE value from configure with linux
		rather than assuming it is always 1 with linux.
		Fix to preproc.c in vertex as it was attempting to parse
		directories.  This works ok under linux with EOF but causes
		problems under AIX.
3.0.23	19mar07	Added corresponding va_end() for all va_start().
		Added optional frequency display between markers, also added
		rc variable of use_frequency_display and menu options to
		support this.
		Placed mainbox for marker text label widgets inside an event
		box as this seems to fix the centering problems with GTK2.
3.0.24	02apr07	Fixed makefile generation so 32bit AIX will use >256MB in
		src/helpers.
		Updated vzt2vcd and lxt2vcd so it handles the zero index of
		bitblasted vectors (from ncsim).
		Updated vzt reader so it can re-coalesce bitblasted vectors
		provided the dumped bits are adjacent/in order.
		Minor bugfixes to vztminer and lxt2miner with respect to
		dumpon/dumpoff (don't emit $dumpon/$dumpoff strings as
		that code was leftover from the vzt2vcd).
		Updated manpages for vzt2vcd, lxt2vcd, and vztminer.
		On concatenated vector loads ('#'/':' in savefile), attempts
		to do a load of a monolithic vector on fail.  This is
		somewhat related to the re-coalesce vectors feature above.
		Implemented reverse of this for monolithic vectors into
		the '#' bitstrand variants.
3.0.25	10apr07	System Verilog with MTI fix for VCD declarations of form
		$var reg 64 >w #implicit-var###VarElem:ram_di[0.0] [63:0] $end
		...debussy implicitly escapes the varname during loading so
		gtkwave does it too now for all VCD loaders.
		More System Verilog with MTI fixes: VCD (parameter) vars of
		length zero are representative of reals with MTI: they don't
		use real_parameter like Riviera does.
		Updated vcd_saver.c to handle saving these implicit-var
		facilities correctly.  Likewise updated lxt-write.c,
		lxt2_write.c, and vzt_write.c to handle correct bracket
		stripping for the [0.0] semantics.
		Modified dynamic resize routine so large escaped names don't
		cause issues with the signal window crowding out the
		wave window.
3.0.26	18apr07	Fixed various compiler warnings discovered from looking at
		Fedora Core compile logs and later compiling against
		Centos/RHEL5.
		Commented out GTK_CAN_FOCUS for scollbars in wavewindow
		as it was causing rendering problems with newer versions
		of GTK.
3.0.27	27apr07	Renamed vertex to vermin to avoid name clashes with
		existing 3D "vertex" package on debian systems.
		Reverted back to using Open Office 2 Beta rather than
		Open Office 2 as it was causing .odt docs corruption.
3.0.28	30apr07	Changed anonymous union in struct Node as it is a
		gcc extension.
		Fixed some vcd parser memory leaks found by Valgrind.
		Moved errno check in vcd parser as it seems that
		the GTK event loop called in splash_sync() calls it
		on gnome 2.18 for some reason (reported by Gentoo
		gtkwave package maintainer).
3.0.29	27may07	Added viewer support for arrays (currently AE2 only).
		Integrated (standard) ./configure scheme thanks to
		Dan McMahill
		Added strdup_2 to debug.c for memory tracking (found
		stray strdup() instances in ghw.c).
3.0.30	24jul07	Removed variable declaration in menu.h that tcc
		complained about (should have been an extern).
		Updated configure.ac to use AC_SYS_LARGEFILE for
		> 2GB file compatibility with older linux systems.
		(This was accidentally left out in 3.0.29.)
		Added ignore_savefile_pos and ignore_savefile_size
		rc variables.  (Requested by Edward Ash.)
		Added ability to specify trace background color in
		filter processes by prefixing the return string with
		?color? as in "?CadetBlue?xor r0,r0,r0".  The colors
		used must already be specified in the rgb.c file.
		Removed check for c++ compiler presence in the
		autoconf.
		Fixed LIBBZ_CFLAGS in .am files that really should
		be LIBBZ2_CFLAGS.
3.1.0	25aug07	Moved to a global context variable management scheme
		for future code expansion.  Reload waveform function
		added which uses context management.  Update user
		manual to include references to reload capability.
3.1.1	20sep07	Fixed crash in hierarchy search reload.  (Wrong
		pointer type introduced from code cleanup.)  Adding
		start of tabbed browsing support.  Put in window
		select focus switching between tabs (e.g., on
		search windows).  Added locking in main iteration
		loop to detect unexpected context switches and
		fix/report them (wrong operation if it occurs).
3.1.2	24dec07	Compiler warning cleanups from Sun compile logs.
		Added named parameter support to vermin parser.
		Added check for gperf back into configure.ac.
		Added vlist_spill rc variable to control new
		feature of spilling vlists to a tempfile on disk.
		Fixed vcd loader status bar on files > 2GB.
		Removed non-growable vlists and also finalize
		aliases in order to be compatible with spill.
		Changed vlist allocation scheme to allocate only
		half as much per-block, then the rest when the
		half-way point is reached.  This reduces memory
		wastage to an average of 12.5% rather than 25%
		on uncompressed blocks.
		Added code to pre-process data in vlists through
		an LZ-based compressor.  The can cut down on
		memory usage ever further.  This can be enabled
		with the vlist_prepack rc variable.
		Added --giga option to turn on vlist_spill and
		vlist_prepack from the command line.
3.1.3	13jan08	Added dynamic keypress detection in the Pattern Search
		Requester so users do not need to press enter for search
		strings.  Likewise, added the rc variable sst_dynamic_filter
		to enable the same type behavior for the signal name filter in
		the GTK2 signal search tree.
		Fixed bug where filtered signal names did not reappear on
		reload.
		Updated user manual as necessary.
		Added "edge" left/right buttons for handy single signal edge
		detection due to user requests.
		Fixed long-standing backward edge seek bug in pattern search.
		(It would miss the preceeding edge if the marker isn't already
		on one.)
		Added use_standard_clicking rc variable in order to enable
		"normal GTK" shift/click semantics in the signal window.
		Collapse/uncollapse is now shift-ctrl when
		use_standard_clicking is active.
		Added prelim dnd for use_standard_clicking mode.
		use_standard_clicking disabled in GTK-1.2 as there are dnd
		issues.
		Recalculate signal width on reload as sometimes it was missed.
		Added input focus capability to signalwindow.
		Moving menu options to standard GTK accelerator keys.
		Added Ctrl-A/Shift-Ctrl-A handler to the treeview so it acts
		like the signal window.
		Added left/right scrolling hotkeys in signal window.
		Added use_toolbutton_interface environment variable which
		enables new user interface at the top of screen.
		More modifications to handle globals swapping in multi-tab
		mode.
		Update configure.ac to handle library order problem with
		cygwin in rtlbrowse.
		Added scrollwheel support in signal window when focused and
		standard clicking is active.
		Added "Use Color" and "Use Black and White" (for screendumps)
		View menu options from user requests.
		Fixed help window so it is not editable.  Also do an implicit
		click-to-front for window managers that automatically move
		windows to front when their insides (not decorations) are
		clicked on.
3.1.4	30jan08	Added fix for how dnd gets killed after reload on new
		versions of GTK (e.g., 2.10.14).
		Added dirty_kick in MaxSignalLength that forces usize if
		width is dirty.
		For interpolated analog traces, fixed interpolation at
		end of line so it doesn't cause endpoint to go offscreen.
		Experimenting with track-and-hold fixing.
		Integrated spice3f5 poly interpolation routines, but are
		currently unused.
		Now allow both interpolated+step simultaneously for analog.
		Integrating signal window popup menu code.
		Fixed rendering bugs in coalesced vectors displayed as analog.
		Added resizing options that are windowed to either the screen
		or across all trace data.
		Added enter=OK as a default file chooser response.
		Added DND and standard clicking to GTK1 compiles.
3.1.5	14feb08	Fixed bug in rtlbrowse that causes lxt2 dumps not to be value
		annotated.  (signal match worked for bitblasted nets only)
		Updated rtlbrowse so that it can update dynamically with the
		marker position.
		Added anti-aliased font rendering code.
		Added use_pango_fonts rc variable.
		Updated edge buttons so they can handle multiply selected
		signals.
		Logfile(s) now update on waveform reload.
		MinGW compile fixes.  MinGW crash on reload fixed.
3.1.6	27feb08	Added additional #ifdefs that disable Pango on GTK versions
		less than 2.8.0.
		Added support for optional sideband .aetinfo files when
		using .aet files.  Update interface to rtlbrowse to
		translate time value back to original aet ones.
		Improved x vs X (z vs Z, etc) handling at signal boundaries.
		Changed color scheme where red marks X data similar to how
		it marks U for VHDL.
		Fixed longstanding bug in linear lxts that only occurs if
		integers are present in the lxt dump (length is failed to
		be promoted to 32 during re-chaining).
		Fixed shift-clicking when use_standard_clicking is active
		such that shift-clicks past the last trace when the
		signalwindow isn't fully populated count as a shift-click
		on the last trace.
3.1.7	23mar08	Updated file.c to remove potential file chooser crash in
		the case of a missing save file at the command line followed
		by "write save file as".
		Fixed problem in black and white mode where process filter
		could possible cause colors to be displayed when ?color?
		value escaping is used.
		Fixed problem where primary marker was listed as 0 sec on
		init instead of -- if not set initially from a save file.
3.1.8	06apr08	Added Range Fill option in the data format menu so
		that vectors like address[31:2] will display as a human
		expects to read them.  Fill in can be zeros or ones.
		Added trace flags display at right hand side of signal name
		in mouseover popup window.
		Added more visual feedback in signal D&D window in order
		for users to determine more easily where a drop will insert.
		Reduced visual noise on D&D by not updating screen after a
		cut if a paste also occurs.
		Fixed problem where primary marker was filtered through
		time_trunc() on initialization.  Removed other time_trunc()
		calls causing similar problems as necessary.
3.1.9	20apr08	Added missing init_filetrans_data() to reload function.
		Updated manfiles to get them in line with Debian lintian.
3.1.10	14may08	Added missing adjustment of t->shift in mouseover.c in
		order to allow the mouseover on shifted traces to display
		properly.
		Fixed problem with edgebutton going back two edges on a
		combined vector.  (Cut and paste typo from strace.c.)
		Added support for DND from regex search window to the
		signal/waveareas.
3.1.11	18jun08	Compile fix for tla2vcd in MinGW.
		Added #ifdef for HAVE_BZERO for MinGW.
		Compiler warning fixes.
		Added time = -1 endcaps in LXT2+VZT+AET loaders.
3.1.12	14jul08 Compiler warning fixes.
		Fixed crash in vcd recoder for b vs 01xz mixups in
		malformed VCD files.
		Fixed abort on VCD load for malformed size vs
		[msi:lsi] syntax.  NC does this on arrays of wires.
		Fix to vlist reader with --giga enabled in order to
		handle reads which go off the end of the file.
		(Possible due to how only the amount used in a block
		is actually written to the file in order to save
		space, so the vlist blocks can be overlapping yet
		usable.)
3.1.13	20aug08	Adding compressed hierarchy handling in order to
		reduce memory usage on large bitblasted models.
		This is currently only enabled for the VCD recoder,
		LXT, LXT2, and VZT loaders.
		Fixed some buffer overflows in vectorization code
		(and when vectorization is enabled) in vzt_read.c.
		Modification to autoconf handling for rpc.h.
		Fix for DnD to directly under an expanded comment
		trace.
		Make step_increment equal to 1/10 page_increment
		for the horizontal scroller in the wavewindow.
		Added sticky click semantics for clicks in signal
		window.  To do this in the treesearch_gtk2 file
		will require some additional future work with
		view_selection_func() and/or signal handling and
		trapping.
3.2.0	16feb09	Fix for strings ('s' type) in recoder.
		Added timestart command to savefiles which indicates
		what the leftmost position should be on reload.
		Added support for as/zs small timescales as well as
		0.1/0.01/0.001 multipliers which simvision can emit.
		Adding signal name DnD support from external apps.
		Force open tree nodes on initial .sav file read.
		Yet more new warning (-Wall) cleanups.
		Fixed ExtractNodeSingleBit for vectors which do not
		have a zero in either the msb or lsb (e.g., [1:9]).
		Added support for dragging files into the viewer
		(i.e., dumpfile, savefile, stems file)
		Added DnD of signal names from RTLBrowse source code
		windows	directly into gtkwave.
		GTK1 compiler compatibility fixes.
		Improved search performance from rtlbrowse initiated
		DnD searches.
		Fixed wave_locale.h for MinGW.
		Fixed longstanding bug with blackout regions
		rendering.
		Integrating embedded Tcl interpreter.
		Fixed bug with unformat time when base time is in
		seconds.
		Added tcl example in examples/ directory.
		Updated -f argument file handling in vermin.
		Updated tcl_helper code so that signalwindow drags of bit-
		blasted vectors are properly re-coalesced for client code
		for the drag.
		Updated task definition in vermin so that identifiers with
		dots in them can be used as task enable names.
		Fixed problem in vermin preprocessor where defines in 0x0d0a
		terminated lines would insert the carriage return into the
		sourcecode.
		Added synthesis pragmas which mirror synopsys ones to vermin.
		Used gtk_window_set_default_size instead of gtk_widget_set_usize
		in rtlbrowse in order to allow window to shrink appropriately.
		Made size_tag values smaller in logfile.c in gtkwave/rtlbrowse.
		Allow dragging from rtlbrowse window without needing to high-
		light signals first.  This allows single signal drags.
		GCC-4.1.3 with -O3 flag fix for x86_64 on xchgb instruction
		assembler intrinsic.
		Use gtk_window_set_transient_for() on simplereq windows.
		Starting to update environment for rtlbrowse into a single
		integrated window.
		Adjust xthickness/ythickness in toolbars to make images
		take up less space.
		Preliminary support for text searching in rtlbrowse.
		Added rtlbrowse case (in)sensitive searching both directions.
		Fix re-entrancy on file names for file.c file requester in
		gtkwave.
		Add --with-tcl to configure script via tcl.m4 macro.
		Cut down on visual noise during reload.
		Added fix using TCL_INCLUDE_SPEC to get to compile under
		Ubuntu.
		Fixed lost num_cpus variable that wasn't passing through reload.
		Added Cut/Copy/Paste functionality that allows multiple pastes
		rather than destroying the cut buffer on paste.  Cut buffer
		contents will survive after a reload operation.
		Removed translate filter process from mingw32 menu as it
		is disabled in the compile by #ifdef'ing in empty functions.
		Updated shmidcat so it restarts properly when VCD is being
		looked at while sim is running and gtkwave gets ahead of
		the generated VCD.
		Fix crash on invalid node for force tree open during load.
		Added Partial VCD Dynamic Zoom and related zoom_dynamic
		rc variables.
		Added prelim support for export to TimingAnalyzer file format.
		Added mouseover support in signal window which shows full
		facility name.
		Added dynamic update on strings for marker values which keeps
		user from having to press enter explicitly for each one.
		Now allow support for named markers using optional user names
		rather than just 'A'-'Z' labels.
		Added countdown timer to remove dnd cursor if it is onscreen
		longer than 5 seconds.
		Added support for setting optional user names for named markers
		via Tcl scripts.
		Added prelim auto-scrolling code for trace adds/copies.
		Added support for Tcl repscripts.
		Removed warnings found when compiling with -Wshadow.
		Fix for stack crash in treesort() on dumpfiles with an
		extremely large number of signals (e.g., 5 million).
		Compile fixes for rtlbrowse in older versions of GTK2.
		Remove stray tempfiles created by --giga writer under MinGW.
		Removed stray file descriptor from lxt on reload.
		Fixed repeat error problem in lxt.c introduced by -Wshadow fix.
		Added prelim version of scale_to_time_dimension rc variable and
		appropriate menu options.
		Beginning to update user manual to reflect new 3.2 features.
		Added Partial VCD Dynamic Zoom To End and related
		zoom_dynamic_end rc variables.
		More mingw compile fixes: the whole tarball compiles now.
		Use old file chooser (for now) in mingw as the new one seems
		not to be re-sizeable.
		Added "copy traces" to toolbar in gtkwave as copy function now
		exists.
		Added check for "server" in env var CYGWIN before printing
		warning about using shared memory.
		Added vpi client lxt/lxt2/vzt writers in contrib/vpi, but these
		currently are not built.
		Compatibility fix for gcc 3.x.
		Added extload capability which grabs data via popen().  This
		allows adding loaders for unsupported formats via data mining.
		Added Tcl command setBaselineMarker.
		Extload hardening on reload.
		Added extload filetype to DnD.
		Fixed window close when tabs active so it would update the
		titlebar, times, etc., to the current tab.
3.2.1	09apr09 Add more information for users if gtk can't initialize on MacOS.
		Added possibility for vlist.c to write out the spill file in a
		machine independent fashion.
		Added --fastload option to gtkwave.
		Fixed autoconf so Tcl works in cygwin.
		Updated cygwin "Bad system call" warning text to include more
		possible fixes.
		Fixed warning message in strace.c ("Named Marker xx not in use")
		which spanned multiple lines because of multiple status_text()
		calls.
		Fixed STATUS_ACCESS_VIOLATION in cygwin for both vztminer and
		lxt2miner and added the --comprehensive option in each.  Also
		added behavior that no search string specified matches all
		value changes across all nets.
		Updated documentation description for collapsible groups to
		indicate that shift-control is required, not control
		(as previously).
		Adjusted brightnesses for mdgray and dkgray so collapsed
		traces are visible on some monitors.
		Fixed dkgray->mdgray for "Time" background as brightnesses
		have changes.
		Made AN_NORMAL/AN_REVERSE const declarations also static in
		order to avoid unnecessary stack pushing.
		Fixing reloader crashes in vcd_build_symbols().
		Adding experimental support for bringing up gtkwave without a
		trace like "every other" GUI app.  This is currently disabled
		pending more testing.
		Sort filename lists from DnD in order to allow both a
		dumpfile and a savefile to be dragged into the viewer and
		processed in a logical order (i.e., the dumpfile before
		the save file.)
		Added disable_empty_gui rc file variable.
		Working with ergonomic features of empty gui handling.
		Fixed & to && in if() comparison in lxt_write.c
		Added support for PDF output via ps2pdf.
		Added support in VZT file format for LZMA compression.
		Fixed calling to install_keypress_handler() as it only needs
		to be done once.
		Add menu blackouts on empty gui.
3.2.2	02aug09	Changed some instances of exit() in main.c to vcd_exit() in
		order to keep failed loads in tabs from killing the whole
		session.
		Update VCD ID generation in VCD writers to use XL-style
		identifier sequencing.
		Fix MinGW printf format strings for helper apps.
		Ported shmidcat and partial VCD loader function to MinGW.
		Added twinwave support in MinGW.  This currently has some
		problems with D&D as well as window decorations being
		present due to various system incompatibilities.
		Added rtlbrowse support in MinGW.
		Fixed rtlbrowse on reload, now allows to respawn.
		Fixed rtlbrowse in cygwin as kill() does not work the same
		as posix kill.
		Added clearing of t->minmax_valid in dataformat() in case
		sign bit changes for analog vectors when TR_ANALOG_FULLSCALE
		is in use.  This allows dynamically changing from/to "signed
		decimal" and other modes and removes any y-scale artifacts
		from having stale minmax data.
		For rtlbrowse kill, step through all contexts in atexit()
		handler.  More exit fixes for rtlbrowse killing.
		Warning fixes for printf format strings in lxt2/vzt/ghw.
		Updated VCD parser to handle names like "a[1] [3:0]".
		Added VCDNAM_ESCAPE cases in lxt, lxt2, and vzt loaders.
		Updated VCD writers so they put spaces before bracketed
		signal ranges.
		Added extra message for help requester if file type is
		MISSING_FILE in order to direct users what to do.
		Fixed segfault caused by improper search/replace and
		malloc length in renderopt.c for ps2pdf.
		Beginning to integrate FST file format support.
		Optimize rtlbrowse somewhat by not redoing fac finding
		every time the cursor moves.
		Beginning to integrate FST into rtlbrowse.
		Added vcd2fst and fst2vcd helper utils.
		Added option to FST to allow monolithic post-compress for
		much smaller file sizes.
		Documentation updates.
		Added capability in GHW reader for negative indices on
		bitstrands.
		Added variable type support to VCD + impulse arrows for
		depicting events on VCD (other formats will migrate in the
		future).
		Added vartype info (if avail in trace, now FST+VCD).
		Added module type info (if avail, now FST+VCD+GHW only) by
		decorating the hierarchy tree info appropriately.
		Changed build_tree_from_name() to perform move to front for
		hier names in order to work better with decorated trees.
		Add EVCD support to vcd2fst, fst2vcd, and FST loader.
		Fix longstanding bug in vcd parsers where evcd did not
		parse correctly if standard VCD IDs were used.
		Fixed "f" value in EVCD files so it converts to z, not x.
		Convert capitalization usage on hex values to match that
		of verilog.  (i.e., x = all bits are x, X means some but
		not all bits are x.)
		Change magic number 3 to AN_1 in vtype2().  This was skipped
		by an earlier sourcecode conversion.
		Change file requester handling so old names are copied
		to the new tab and the directory used on an unspecified
		entry is derived from the loaded file name directory.
		Added type information to mouseover in signal window.
		Added --enable-fatlines ./configure flag which enables gtkwave
		to render lines in "Fisher Price" (aka Simvision) double-
		width style.
		Added evcd2vcd to the distribution.
3.2.3	03sep09 Set iconify icon for gtkwave with gtk_window_set_icon().
		Ensure -d flag survives across reloads/new tab.
		Added LIBZ_CFLAGS to helpers/fst AM_CFLAGS for MinGW.
		Added gtk_window_set_resizable for pWindowMain in file.c
		as some distros need this.
		Changed some strace.c globals to "signed char" to remove
		warnings under AIX compiles.
		AIX ./configure fixes.
		Added malform_eof_fix() to recoder and regular VCD loader.
		Fix to attempt_vecmatch_2 when no suffix encountered.
3.3.0	25dec09	Modified unformat_time() so it can also handle floating-
		point exponential format.
		Integration of a large amount of group handling sourcecode
		from Don Baltus / Bluespec, Inc.
		Re-integrated original Simpod repscript handling.
		Reworked force open tree node and moved to
		tcl_support_commands.c.
		Renamed liblzma to libgwlzma for now: liblzma is present
		on some systems and causing conflicts.
		Fix for tk library issue on Cygwin.  (Use TK_BUILD_LIB_SPEC
		if TK_LIB_SPEC is a null string.)
		Added --enable-stubify ./configure option to make Tcl/Tk
		library usage be completely dynamic.
		Generate anonymous name for groups to prevent crashes when
		group name is unspecified.
		Added EnsureGroupsMatch() on various parsewavline() code
		sections to enforce legitimate group formations.
		Applied gtk+-1.2 compile fixes as compile was getting out
		of sync as it hadn't been tested recently.
		Allow more events in GuiDoEvent() to prevent hangs.
		Made --wish and --vcd mutually exclusive as they both require
		input on stdin.
		Enabled gc caching on linux to help with rendering extremely
		dense traces.
		Removed memcpy() ops in baseconvert.c and changed them into
		pointer copies as the copied string is never modified.
		Resequenced enum WV_MenuItems in menu.h which lost ordering
		from Bluespec menu item adds.
		Added gray code conversion ops.
		Added FST detection to gtkwave::getDumpType.
		Added missing context change variables in context_swapper().
		Added gtkwave::setTabActive and gtkwave::getNumTabs
		MinGW tcl compile fixes.
		Cygwin fix for optimized vcd -o option.
		Disabled reload on optimized vcd from stdin.
		Removed --wish when building under MinGW and when specifying
		--enable-stubify for configure (for now, the fail is with
		TkMainEx).
		Removed tempfile generation for Tcl script execution; now
		use alloca based scheme.  Also removed old-style "script"
		file support as it is obsolete: all scripts are Tcl scripts
		now.
		Integrated user-provided rework of rgb.c.
		Removed local lzma library and now use system xz if
		available. Old VZT files using -z 2 are no longer readable
		but can be converted using vzt2vcd from an old version of
		gtkwave.
		Various warnings fixes.
3.3.1	03jan10	Fixed Makefile.am files to allow builds into different
		directories than the current one.
		GHW crash fixes.
		In fstapi.c now use tmpfile() to generate tempfiles in
		order to speed up operation on networked filesystems.
		Fixed problem in fstapi.c with conflict between off_t
		and unsigned longs on some 32-bit systems which cause a
		"tsec uncompress" failure on reads.
		Fixed missing dependencies in various Makefile.am files.
3.3.2	05jan10	Emergency fix for ghw.c as it was missing a close comment
		causing problems with iterative generate.
3.3.3	18feb10	Fix for Pattern Search where end marker time was not used
		for dropping down a marker: for clock counts this would
		mean that the clock count was off by one.
		Added locking/unlocking of named markers against the
		primary marker with 1/2/0 keys.
		Fixed broken "make distclean".
		Added patch for move to time against named markers.
		Added a secondary pattern search function.
		Added sanity checking on WAVE_NUM_STRACE_WINDOWS.
		Added fix for broken bsearch_facs() when characters like
		"$" are in a facname and it matches a hierarchy boundary.
		Removed tla2vcd from distribution because of incompatibility
		with some TLA700 traces.
		Removed obsolete helper executables.
		Activated preliminary line clipping for analog rendering as
		line clipping in GTK does not always work for extreme
		value ranges.
		Hang in gtkwave on backtracking time fix (usually caused by
		truncated files).
		Replaced Tcl_GetStringResult() in tcl_np.c with Tcl_GetVar()
		on Tk init fail.
		Added AC_CHECK_LIB([dl], [dlopen]) (Fedora requirement).
		Added --disable-xz (requested by Gentoo).
		Added extern "C" { } bookends to headers for C++.
3.3.4	07mar10	Change slope calculation "m" in clipping.c to all doubles
		in order to avoid integer overflow errors.
		Change main resync loop name from gtkwave_gtk_main_iteration
		to gtkwave_main_iteration.  (Start of separation of GUI code
		from functional code.)
		More fixes to analog clipping: yt0/yt1 were reversed, also
		added analog_redraw_skip_count env var.
		Added support for "realtime" VCD variable.
		GTK1 compile compatibility fixes for pattern trace.
		Removed "Reduce Single Bit Vectors" menu option.
		Added defensive re-link of t_prev on prepend and cut ops.
		Fix for analog stretch traces when analog trace was
		expanded and then collapsed.
		Fix to LZMA_write_compress to detect xz compression failures.
3.3.5	19mar10	Fix for usage of deallocated next pointer in the
		force_open_tree_nodes loop (spotted using an alternate
		allocator).
		Added optional preliminary Judy array support.
		Fixed compiler warnings.
		Fixed toggle max hier so it toggles back and forth between
		the most previously set hierarchy depth.
		Added ".lxt2" to list of suffixes allowed by gtkwave.
		Remove name field from struct fac.
		Added missing hierarchy boundary sort for FST in order to
		allow compatibility with compressed names (-C flag).
		Removed resolve_lxt_alias_to field from struct fac.
		Removed lxt-only lastchange field from struct fac.
		Removed unused h field in struct symbol.
		Removed nextinaet field if unused, recoded to symchain when
		used.
		Fixed && used in logical operation for generating ExtNode.
		Removed ExtNode, made inline with Node.
		Deallocate symbol hash table after no longer needed.
		Only allocate hash when necessary.
		Added marker vs maxtime marker conflict check in
		kick_partial_vcd() to ensure signal window values reflect data
		value rather than x when maxtime scrolls over the marker time
		and makes the marker visible.
		More Judy array adds for VCD.
		Removed sym->selected member and replaced with 1-bit Judy array
		if enabled.
3.3.6	01may10	Added RealToBits menu options for displaying real numbers as
		binary values.
		Added missing break statements to terminate cases in
		bits2vector().
		Fixed cut and paste error on FILE_FILTER_MAX versus
		PROC_FILTER_MAX.
		Reduced FILE_FILTER_MAX from 1024 down to 128.
		Added preliminary transaction filter support.
		Added transaction parser in examples/ directory.
		Updated time warp handling.
		Updated print routine to use populateBuffer().
		Added raise to front when filename selected in filter dialogs
		as this helps with some window managers.
		Remove color for translated/transaction traces in black and
		white mode.
		Copy gc_grid_wavewindow_c_1 from gccache on reload as this was
		accidentally overwritten with gc_grid2_wavewindow_c_1 without
		adding back gc_grid_wavewindow_c_1.
		Added fstWriterSetTimescaleFromString() to fstapi.c which
		allows usage of strings such as "1ns" for the timescale.
		Incorporated FST writer optimizations.
		Incorporated some fixes suggested by cppcheck.
3.3.7	03jun10	Made enable_fast_exit rc variable default to yes.
		Compiler warning fix in lxt_write.c/fstapi.c for Open Solaris.
		Added fstWriterGetDumpSizeLimitReached() to fstapi.c.
		Fixes to Tcl string handling.
		Applied user-supplied fixes for null pointer crashes in
		rtlbrowse.
		Moved gtk_grab_add() after gtk_widget_show() in order to work
		with newer versions of GTK.
		Use PRId64/PRId32 in lxt2_read.h and vzt_read.h to remove
		printf format warnings.
		Fixed "format not a string literal and no format arguments"
		warnings.
		Added missing HAVE_INTTYPES_H in compile note for
		transaction.c.
		Disable autocoalesce if Icarus Verilog is detected.
		Added units forward scan in logfile.c.
3.3.8	25jun10	Added failure check on tempfile create in fstReaderInit().
		Added strace_repeat_count and appropriate menu option.
		Removed the "/File/Quit/Don't Quit" menu item if fast exit is
		enabled.
		Added dnd of signals from gtkwave into rtlbrowse: now the
		appropriate verilog code sections automatically are
		imported.
		More warnings cleanups.
3.3.9	06jul10	Changed accelerator for Quit to conform to Gnome standard
		menus guidelines.
		Update local libz and libbz2 to current versions.
		Moved version string out to version.h to keep from having
		the CVS data updating in currenttime.h.
		Fix crash that can occur in RemoveTrace.
		Header file cleanups.
		Fixed actual result of crash in RemoveTrace: defensive
		re-linking in PasteBuffer didn't always relink the back
		pointers properly.
3.3.10	16jul10	Fix in vermin Makefile.am for parallel build failures involving
		shred.c depending on tokens.h.
		Added missing dependencies in various Makefile.am files.
		Fix for free to non-malloc'd address problem in main.c and
		menu.c due to context changing in Tcl scripts when
		gtkwave::/File/Open_New_Tab is invoked.
		Updated vcd2fst so it is compatible with VerilatedVcd writer.
		Read hierarchy reconstruction hardening for fstapi.c.
		Check return code for hierarchy generation in fst2vcd.c.
		Updated example to reflect Quit name change.
		Updated repscript_timer so it prints stack trace.
		Use setvbuf (as with MinGW) for fstapi.c to fix for OS X.
3.3.11	17aug10	Added tcl functions gtkwave::installFileFilter,
		gtkwave::installProcFilter, gtkwave::installTransFilter,
		gtkwave::setCurrentTranslateFile,
		gtkwave::setCurrentTranslateProc,
		gtkwave::setCurrentTranslateTransProc, and
		gtkwave::setCurrentTranslateEnums to give Tcl access to these
		features.
		Add write combining in fstWriterEmitValueChange to speed
		up execution on Cygwin.
		Nested `ifdef fix for Vermin.
                Fix for free to non-malloc'd address problem in repscripts
                due to context changing in Tcl scripts when reload occurs.
		Added gtkwavetcl_setvar() for starting to build a framework
		to support Tcl variable change callbacks.  This can be used
		to closely monitor how a user manipulates the gtkwave GUI.
		Fix for 0 millisecond Tcl timer causing 100% CPU usage.
		Added CVS versus ModelSim compatibility fixes for Bluespec
		savefiles.
		Fix for atoi_64 when value is zero followed by a legitimate
		nonzero value after some garbage non-numerics.
3.3.12	29aug10	Compile fix for --disable-tcl or systems which do not have
		Tcl installed.
		Added support for process filters in MinGW.
		Added support for transaction filters in MinGW.
		Added support for Open New Window to MinGW.
3.3.13	23sep10	Reduce memory footprint of VectorEnt on 32-bit architecture
		by struct reordering.
		Added warnings for options that are non-functional for some
		configurations.  (They are not disabled in order to allow
		compatibility across systems.)
		Fixed dangling fnam malloc in fst.c.
		Reduced temporary memory usage during file init for lxt2,
		vzt, and fst files by using F_NAME_MODULUS wrap on f_name.
		Sparse vs non-sparse array crash fix for ae2 loader.
		Suppress decorated treebuild for fst when compressed facs
		are being used: this was causing duplicate tree entries.
		Fixed renderhash problems in print.c caused by disparity
		in eqns used in wavewindow vs print.c (need realx, not
		just x).
		Upgrade local libbz2 to 1.0.6 for uncompress security fix.
		Added experimental dynamic SST building code which speeds
		up initialization time for trees with extremely large number
		of scopes.
3.3.14	26oct10	Fixed force_open_tree_node() for dynamic SST trees when
		unbuilt nodes are encountered during traversal.
		Allow VCD files where start = end time.
		Compiler warning fixes.
		Added preliminary RPC mechanism to gtkwave.
		Added --disable-inline-asm ./configure flag.
		Added initial_signal_window_width rc var.
3.3.15	10nov10	Added check in fstapi.c for corner case where
		fstWriterEmitSectionHeader could make a file unusable if.hier
		is not present.
		Added more checks in fstapi reader to prevent crashes on
		malformed files.
		Add config.h #include to the fstapi.c code.
		Add detection in vcd2fst for Verilog XL-style VCD identifiers
		to speed up reading VCD files from those simulators.
		Speedup in fst writer by ensuring checkpoint is not written
		to for every fstWriterEmitValueChange call.
		The --optimize flag now uses fst instead of lxt2 as its
		default file format use vcd2lxt2 directly if old behavior
		(e.g., converting flat signal names to hierarchies) is
		desired.
3.3.16	24nov10	Remove unused JError variables and replace with PJE0 macro.
		Added experimental dynamic alias detection in fst writer if
		Judy arrays are detected.  (Judy not required for reading.)
		Added Jenkins hash routine to enable dynamic alias detection
		for when Judy not available.
3.3.17	28nov10	Added sanity check in dynamic alias reconstruct routine in
		FST reader and also fixed bug where alias reconstruction in
		current blocks doesn't overwrite previous, old block data.
3.3.18	24dec10	Added extra allocation in fstWriterEmitValueChange in case
		users modify the FST_BREAK_ADD_SIZE to a very small value.
		Fixed in lxt.c that --disable-inline-asm did not propagate
		into its compile.
		Fixed x86_64 assembler =q vs =Q problem in lxt.c.
		Preliminary support for variable length records in FST files.
		Added fstUtilityBinToEsc and fstUtilityEscToBin for
		conversion of binary data to C-style strings.
		Now allow escaped strings in VCD files to encode a richer
		set of data for non-standard "s" VCD records.
		To comply with fst2vcd, vcd readers now handle "string"
		variable type keyword.
		Scaled back multipler from 95 to 94 for VCD ID processing
		as !..~ is a distance of 94.
		Add detection for Verilog XL-style VCD identifiers in all
		vcd loaders in gtkwave in order to aid in indexing.
		Added --enable-struct-pack configure flag.
		More warnings fixes.
		Fix mif_draw_string so it does not emit escaped character
		codes.
		Added gtkwave_server to distro but it is not currently in
		automake as it is not ready for use.
3.3.19	03feb11	Added more NULL pointer checking to vcd2fst to prevent
		crashes on malformed files.
		Rewrote support for compressed signal handling.  Currently this
		is for FST only.
		Modified shmidcat to exit on EOF.
		Added sys_fst.c VPI source for NC Verilog and XL.
		Added component typename dumping into sys_fst.c so that NC can
		dump component names.
		Added component type names in gtk2 tree.  Currently the FST
		loader is the only one that will populate this field.
		For 64-bit architectures, doubles are stored in HistEnt fields
		directly to conserve on memory usage.
		Fixed top/bottom pane resizing bug after reload in SST window.
		Fixed crashes in hierarchy search widget for GHW where
		standard, textio, std_logic_1164, etc. were selectable.
		Fixed reload scroll position for bottom TreeView in SST window.
3.3.20	21feb11	Fixed uninitialized mat variable in compress_facility().
		Added --slider-zoom option to gtkwave to enable experimental
		horizontal slider zoom feature (GTK2).
		Fix vcd2fst so it can handle 0 length VCD event variables in
		their declarations (MTI).
3.3.21	28apr11	Fixed crash in LXT2 reader on malformed files.
		Fixed reload crash when -o flag used on non-VCD files.
3.3.22	03jun11	Optimize tree build so it can handle large amounts of
		component instantiations (netlists) without undue slowdown.
		Added gcc -Wformat and -Wformat-security related fixes.
		Update hier_decompress_flagged so it can also decompress into
		its own static buffer in order to speed up temporary usage
		cases.
		Fix FST reader iterator to work better with --begin flag.
		Fixed missing facname decompression for FST files on
		single trace import (backup case that should never happen).
		Added support for user-specified timescale ruler using the
		ruler_origin and ruler_step rc variables.
		Added "/View/Define Time Ruler Marks" menu option.
		Removed indirect file support as is unneeded for 64-bit.
		Removed obsolete CVS modification log comments.
		Handle vcd saver case of dot at end of signal name.
3.3.23	01jul11	Fixed ItemFactory callbacks as their argument lists did
		not reflect the correct callback argument type/order
		for callback_type=1.  This is a longstanding hidden
		bug.  (Would prevent pattern search from working on
		64-bit big-endian architectures.)
		Fixed broken "replace" signal option.
3.3.24	03aug11	Improve the searching for the TCL libraries (when using
		stubs).
		Fixed bug where Tcl_GetString was substituted with
		brace removal preprocessing when unnecessary (would break
		addSignalsFromList, etc.)
3.3.25	15sep11	Replaced calloc_2 with histent_calloc in loaders where
		applicable.
		Updated tcl.m4 so /usr/lib64 can be automatically used.
		Fixed TR_ANALOG_STEP line clipping problem.
		Checked in fix for modelsim signal bit nets that are
		defined as [0] as some tools emit signals without the
		[0] and it causes savefile compatibility problems.
		Add visible filter pattern in fileselbox() as well as
		selectable "*" pattern overrides.
		Added custom filters to GtkFileChooser dialogue.
		Fix in lxt2_read.c/.h for negative msb/lsb indices.
		Fix in vzt_read.c/.h for negative msb/lsb indices.
3.3.26	25sep11	Mac OSX fixes: removed restrictions for twinwave on OSX,
		OSX compile fixes for Tcl detection, printf warning
		fixes (xcode gcc uses stricter warnings).
		More generic warning fixes from recent feature adds.
3.3.27	20oct11	Fixes of suspicious NULL pointer warnings from scan-build.
		Fixed inline function linker errors when using Clang.
		Optimization of more [1] cases found in analyzer.h when
		-DWAVE_USE_STRUCT_PACKING is active.
		In process_url_list() use g_malloc/g_free as context can
		or will change when files are loaded.
		Added fix for DnD crash when Quartz is the GDK back-end
		on Mac OSX.  Enable fix with --enable-quartz in configure.
		Fixed fstWriterFlushContext() such that invocations
		outside the fstapi are synced with time changes.
		Modify main window size for twinwave on Quartz: GtkPlug
		window does not fit into GtkSocket as with X11.
3.3.28	11nov11	Use larger more readable Apple fonts for Quartz.
		Added support for colorful traces using the
		/Edit/Color Format/... menu options.
		Fixed rendertimes bug where times did not always display
		when grid is turned off.
		Added keep_xz_colors gtkwaverc variable.
3.3.29	31dec11	<< short descriptions >>
		Added OSX integration when compiled against gtk-osx.
		Added mime types and icons for file types and desktop menus.
		Changed .sav (deprecated but not removed) to .gtkw, with
		.gtkw itself being able to bring up the original dumpfile.
		Numerous bug fixes.
		Preliminary GConf support supporting session ID-based restore.
		Preliminary GConf support to emulate OSX "open"
		functionality such that dumpfiles/savefiles can be targeted
		to an open gtkwave viewer / session ID.
		<< long descriptions >>
		Fixed size of declaration of render_mutex_renderopt_c_1 as it
		was one element too short.
		Added transition code for shifting away from using
		GtkItemFactoryEntry (also will help with OSX menubar
		integration which expects menu shells).
		Added support for native Quartz menu bars.
		Removed --enable-quartz as it is auto detected now if
		PKG_CHECK_MODULES(GTK_MAC, gtk-mac-integration) is
		true and GDK is compiled against Quartz.
		Fixed pointer crashes on NULL returned on gtk_entry_get_text()
		on OSX/Quartz.
		Recommended usage for Quartz is now jhbuild with
		gtk-mac-integration, not MacPorts.
		Added mac bundle info in contrib/bundle_for_osx.
		Added gtkwave_argv0_cached as Open New Window does not work if
		"gtkwave" is not in path or is something like gtkwave-bin as
		in an OSX bundle.
		Detect context swapping in file chooser from DnD to prevent
		possible crashes.
		Block DnD while file chooser is active.
		Migrate OSX to OSX key accelerators.
		Fix for tcl code opening the root node.
		Fix time warp cmd->control mapping for OSX.
		Fix for time warped traces not rendering properly when
		x-coordinate overdraw is detected.
		Added WAVE_ALLOW_QUARTZ_FLUSH_WORKAROUND temporarily which
		needs to be set at compile time which gates redraw.
		Add GLOBALS->force_hide_show to force redraws in OSX.
		Added osx_timer() which controls forced redraw.
		Abort GHW read when nbr_el<0: indicates malformed file from
		variable/signal construct of form (7 to 0) rather than downto.
		Crash fix for non-string len zero facilities in vcd2fst.
		Fixed overflow in draw_hptr_trace_vector_analog().
		Added rtlbrowse and vcd2fst binary path finding code to OSX.
		Changed ps2pdf to pstopdf on Mac.
		Fixed broken wave_script_args.
		Reverted to 3.3.26 code in menu_func() as the renderbox
		requester did not work from TCL anymore.
		Catch NSApplicationOpenFile so files can be opened from Finder.
		Added --chdir command line option to support open for OSX so
		that gtkwave can be run at the command line directly from its
		installed gtkwave.app.
		Fix window resizing / repositioning to work in OSX: block once
		viewer is on second tab, however.
		Added sst_width, sst_vpaned_height, sst_expanded, and
		signals_width tags into save file to allow pane size and
		expander settings to be saved to the save file.
		Add ignore_savefile_pane_pos .gtkwaverc variable.
		Added dumpfile tag to save files.  OSX Finder uses these to
		find the original dumpfile.  This can be done from the command
		line also by specifying --save but not specifying a dump file.
		Added .gtkw as a new save file extension.  When either .sav
		or .gtkw is encountered, the rest of a tab's session adaptively
		follows in expecting it as the save file suffix.
		Added [savefile] tag to save files.  The intended use is to
		allow reconstruction of relative paths between dump and save
		file.
		Fixed --autosavename to use .gtkw as a suffix rather than the
		.sav suffix.
		Reworked wave_info and wave_alert icons.  wave_info now
		matches gtkwave.icns.
		Renamed .sav examples to .gtkw.
		Added relative path comparisons for --save so when dumpfiles
		and savefiles move in tandem, a successful load can be
		attempted.
		Added [dumpfile_mtime] and [dumpfile_size] tags to save file.
		Can now specify just an augmented save file at the command
		line and gtkwave will load both the dump file and the save file:
		this makes launching from desktops easier on Linux.
		Added mime types, desktops, and icons in share/ for gnome.
		Added percentage progress during load for most file types
		in window title bar when splash screen not active.
		Preliminary add of interfacing with GConf via the
		/com.geda.gtkwave directory for keys in GConf.
		Memory overrun fix to symbol.c for Bluespec add from 3.3.11.
		Added --restore command line option to gtkwave.
3.3.30 17jan12	Updated ./configure to add --disable-mime-update flag.
		Fix --optimize for --restore.
		Add [optimize_vcd] savefile tag.
		Disable analog during mutually incompatible mode selection
		(binary, filters, etc).
		Added F/P/T flags to mouseover for the filters.
		Fix problem where ungrab doesn't occur if button pressed +
		simultaneous reload accelerator key occurs.
		Fix combine direction in transaction filter to down.
		Fix vector analog render/print routine to use skipcnt.
		Fixed transaction filter to cache hptr node if converted
		(i.e., do not place bitblasted in save file if avoidable).
		Fixed min/max of cached autoscaling sizing when number of
		extension traces changes.
3.3.31 30jan12	Added support for native file requesters in OSX Quartz.
		Added support for native alert dialogs in OSX Quartz.
		Clang warning fixes.
		Added missing config.guess and config.sub.
		Allow drag of .gtkw (when viewer still does not have a file
		loaded) to load the corresponding dump file.
		Fix MinGW compiles broken from recent changes.
		Documentation updates.
		Fixed broken ifdef in signalwindow.c that degated savefile
		loading .gtkw dump+save properly if not gconf2 or Mac.
3.3.32 13feb12	Turn off loader messages when Tcl is executing a command.
		Added gtk_print_unix_dialog support for printing to
		real printers by using the "UNIX" type.
		Automatically kill splash screen on reload/new tab.
		Added transaction_args savefile tag and support for passing
		args to transaction filters via the args $comment.
		Added string value of \000 which renders as high-z.
		Integrated alt_wheel_mode code provided by Tom Browne.
		Fixes for some rc file variables to keep them from getting
		clobbered on 2nd tab opening.
		Warning fixes when compiled on Ubuntu.
3.3.33 27feb12	Scan-build fix in vcd_recoder.c.
		Added $timezero tag to VCD files which allows offsetting all
		the values in a trace to provide ability for negative time
		values.  Currently only VCD, LXT, LXT2, VZT, and FST support
		this.
		Fix for timescale 10s and 100s.
3.3.34 12mar12	Fix for marker time deltas when $timezero is used.
		Reduced size of alert requester icons to 64x64 pixels.
3.3.35 04apr12	Polarity fix for vcd_preserve_glitches in rcfile.  Default
		is no/off. Use yes in the rcfile to enable (e.g., for
		viewing interpolated analog waveforms).
		Added vcd_preserve_glitches support to FST as --optimize
		uses FST.
		Added vcd_preserve_glitches_real (for VCD/FST) rcfile
		variable that turns off deglitching only for real signals.
		This removes the need for #define TRACK_AND_HOLD_FIX and
		prevents the case where interpolation of an analog waveform
		is deformed as significant data points were removed by the
		VCD or FST loader.
		Fix for do_initial_zoom_fit when file requester used.
		Changed contact address for bug reports.
		Enable mouseover for MinGW.
		Added fstWriterSetParallelMode().
3.3.36	04may12	Fixed destructive string convert in fstUtilityBinToEsc().
		Added support for 01xzhuwl- in fst.c callback interface,
		vcd2fst.c, and lxt.c.
		Added adaptive buffer resizing in FST writer for Linux
		and Mac OSX.
		Fix for realpath() 2nd argument NULL on Leopard.
		Fix for doubles stored in HistEnt fields in ghw
		introduced in 3.3.19.
3.3.37	10jun12	Added patch for savefile.c that corrects an issue in which the
		parser for process filter lines assumed the associated id
		number was always a single digit.
		Added patch to bitvec.c catches one more case when locating
		bitblasted signals in vcd files created by modelsim.
		Fix that kills stray pipeio_create() processes on
		pipeio_destroy().
		Additions to extload to handle hier types, component types,
		and signal types.
		Added support for extload files as input filetype in vcd2fst.
		Added -o for extload files to convert to FST.
3.3.38	10jul12	Upgrading vermin parser to handle some > 1995 constructs.
		Propagate -o option into "Open New Window" menu option.
		Change invert function so it does not incorrectly expand into
		the whole nybble when it is < 4 bits. That is, inverting the
		two bit quantity 10 now displays as 0x1, not 0xD.
		Added fstminer.
		MinGW warnings fixes.
		Fixed relative pathnames for gtkw save files in MinGW.
		Fix fstapi reader so it does not leave stray hier tmpfiles
		around in MinGW if reader is never closed.
		Changed twinwave for MinGW so that it does not target two
		panes in a single window.  Something is apparently now
		broken in the GtkSocket/GtkPlug implementation for Win32.
3.3.39	08aug12	Fixed relative pathnames when generated in MinGW and used
		back on Linux.
		Added --output filename option to fst2vcd, vzt2vcd, and
		lxt2vcd.
		Fix crash on OSX if gtk_widget_set_sensitive is called on
		a separator.
		Fixed OSX version so it looks for .gtkwaverc in the home
		directory and if not found, probes the resource bundle for
		Contents/Resources/examples/gtkwaverc (no dot in the name).
		Added GTKWave User's Guide option to help menu on OSX.
		Added + vs ++ separators for twinwave.
		Dynamic resize fixes.
3.3.40	10sep12	Fixed y-size of splash screen on MinGW with newest version
		of GTK2 (as it could be verified on that version).
		Fixed off-by-one buffer string allocation write overflow
		in calloc_2() call in maketraces().
3.3.41	30sep12	Fix for gtkwave::addSignalsFromList when encountering
		signals of form a.b.MyBus[7:0] and a.b.MyBus[15:8] such
		that brackets aren't stripped.
		Added experimental highlight_wavewindow rc variable which
		allows signals also to be highlighted in the wave window
		using the value for color_grid.
		Added use_standard_trace_select rc variable and related
		menu option.
3.3.42	28nov12	Fix to prevent missing group openings from keeping other
		signals in the viewer that follow from displaying.
		Adding more support for newer constructs in Vermin.
		Added scrollwheel support to rtlbrowse code windows.
		Added fseeko() return checking in fstapi.c to prevent
		errors with dynamically updated files.
3.3.43	26jan13	Fix for rtlbrowse for gtk_adjustment_get_page_increment and
		gtk_adjustment_get_step_increment introduced in 2.14.
		Added VPD support via vpd2vcd.  To use, specify -o
		at the command line.  (e.g., gtkwave -o test.vpd)
		Added autodetect for LXT, LXT2, VZT, FST regardless of the
		filename suffix.
		Crash fix for gtkwave::getDisplayedSignals, specifically
		removing the extra free_2() in WAVE_OE_ME.
		Added conditional compile for stat() being available.
3.3.44	16feb13	gdk_draw_layout assertion `GDK_IS_DRAWABLE (drawable)'
		assertion fix.
3.3.45	28feb13	Fix for VCDNAM_ESCAPE character in treesearch window.  This
		sometimes occurs for structure identifiers.
3.3.46	29apr13	Upgraded to autoconf 2.69.
		Fixed as of yet undetected hdr_incomplete bug when running off
		end of FST file.  (e.g., while file is being written)
		Fixed problem with is_gtkw_save_file getting wiped out on
		reload.
		Updated Mac bundle info to reflect new autoconf filenames.
3.3.47	14may13	Fix for crash in 64-bit mode with array accesses in
		deprecated loader.
		Partial VCD loader fix for small files.
		Added preliminary do-nothing generate support in vermin.
		Fixed minmax_valid for partial VCD loader: affects scaling
		on floating-point traces.
3.3.48	04aug13	Fixed infinite loop hang on various helpers executables
		when extra arguments are specified.
		Delete changed marker name if it exists when marker is removed.
		Added "Open Hierarchy" option that will expand the SST and
		select the hierarchy for a given signal selected in the
		Signals window.
		Added preliminary support for FsdbReader.
		FSDB fix for generate created hierarchies.
		FSDB fix for new debug info output style to be parsed.
		Added generate as scope type to VCD/FST/FSDB.
		Preliminary add for module port direction for FSDB and FST.
		Display signal direction column in SST if not all signals are
		declared as FST_VD_IMPLICIT.
		Fixed GTK warning when hide_sst is enabled and SST is opened
		then closed.
		Added extraction of in/out/inout from FSDB into FST with
		vcd2fst helper executable.  (It also converts FSDB to FST.)
		Added support for SV structures, unions, classes, packages,
		programs, and interfaces.
		Updated signal parsing in FST/FSDB to handle NC declarations
		for arrays in VCD.  (i.e., bitranges are missing)  Use vcd2fst
		or the -o option to read NC VCD files with arrays properly.
		Preliminary support for SV datatypes of bit, logic, int,
		shortint, longint, byte, enum, and shortreal in VCD and FST.
		Added sparse array datatype to FST (currently unused by
		gtkwave).
		Added support for attribute begin/end in FST.  (Currently
		unused by gtkwave.)  This allows embedding of various data
		inside the structure tree.
		Added autoraise on entry window on keystrokes or periodically
		when it exists.
		Added ability to store $comment in FST files via the attribute
		mechanism (FST_AT_MISC/FST_MT_COMMENT).
3.3.49	11sep13	Fix crashed caused by X11 protocol limitation for pixmap size.
		Potential buffer overflow fix in vcd2fst.
		Added ability to store environment variable information in
		FST files (FST_MT_ENVVAR).
		Fixed bad enum for FST_PT_MAX.
		Added contrib/fst_jni directory to distribution.
		Fixed broken "make dist" variants.
		Added buffer and linkage data directions (future expansion
		for VHDL) in FST and gtkwave.
		Removed requirement for fsdbdebug in path when FsdbReader
		is present.
		Fixed ordering of static FSDB libraries for when dynamic ones
		are not present.
		Added direction filters to SST name filter search.  That is,
		adding +I+, +O+, +IO+, +B+, or +L+ before the regular
		expression adds additional filtering criteria.  Direction
		filters are case-insensitive.
		Relax FSDB loader to allow VHDL and mixed-language files.
		Added VHDL hierarchy types to FST, internal VCD loaders and
		also vcdfst/fst2vcd.
		Added in VHDL to FST (which will also allow other languages):
		gtkwave can process these types (e.g., signal + std_ulogic),
		but there are currently no simulators supporting them.  These
		are written by using fstWriterCreateVar2().
3.3.50	15oct13	Limit number of rows that can be displayed in mouseover in
		order to prevent potential X11 crashes on extremely wide
		signals.
		Added "/File/Grab To File" PNG image grab menu option.
		Added missing $dumpvars emission in fst2vcd.
		Added missing atto and zepto time prefix parsing in vcd2fst.
		Added VHDL package type to FST.
		Added red box around 'U' vector values for VHDL similar to
		'X' for Verilog.
		Used FST "attribute name" for variable types if specified.
		CRLF fix for save file reading on LF-only systems.
		Fix Valgrind hit in fst.c that was causing crashes on OSX.
		Added fstWriterSetFiletype() and fstReaderGetFiletype()
		to provide sim language hint to gtkwave for language-
		appropriate formatting of various data.
		Added fstWriterSetSourceStem() so writers can embed source
		stems in the FST file.  Specify before the appropriate
		hierarchy or variable declaration.
		Added gtkwave_bin_launcher.sh script to set up environment
		variables on OSX for running the bin/ directory files from
		a terminal rather than as an app invocation.
3.3.51	27oct13	MAINTAINERS: Please add gedit to the list of dependencies
		for gtkwave in order to enable new function that Icarus
		Verilog dumps into FST files.
		Fix "/File/Grab To File" on OSX with an OSX patch as the
		_gdk_quartz_image_copy_to_image() function in the GTK
		toolkit for Quartz is broken.
		Updated examples/gtkwaverc accel options to reflect the
		current state of the gtkwave main window main menu.
		Added "Open Source Definition" and "Open Source Instantiation"
		options that invoke .gtkwaverc variable "editor" (or
		$GTKWAVE_EDITOR or gedit or open -t [OSX]) on sourcecode when
		source stems are present in the dumpfile (currently FST only).
		Fixed timezero in vcd2fst as it was only parsing unsigned
		numbers.
		Fixed Open Hierarchy crash on blank signals.
3.3.52	11nov13	Added LZ4 as compression type for FST.  When enabled with
		--fourpack in vcd2fst, this compresses both signal data
		and the hierarchy using LZ4.
		Added WLF support via wlf2vcd.  To use, specify -o
		at the command line.  (e.g., gtkwave -o test.wlf)
		Changed left/right arrow function in signal/wave windows to
		find next transition of selected signal(s).
		Re-enabled DnD scroll beyond top/bottom of Signals pane.
		Added debounce for baseline (middle) mouse button.
		Another partial VCD loader fix.
		Now use libcomdlg32 file requesters on MinGW.
		Added --extensions flag to fstvcd to enable emission of
		FST extensions/attributes to VCD files.  This is to keep FST
		attributes from making VCD files unparseable with other tools.
		Fix in FsdbReader interface for version 1.x files.
		Many warnings fixes found from gcc -Wextra flag.
		Fixed thread-unsafe static allocations in fstapi.c.
3.3.53	15dec13	Made LZ4 the default compression routine selected for vcd2fst.
		Fixes to EVCD parsing in vcd2fst and evcd2vcd.
		Automatically invoke --optimize if VPD or WLF is detected;
		invoke on FSDB if FsdbReader is missing.
		Standardized export feature to write vcd using lower case
		for non 0/1 values.
		Added perror() on errno-related exits in vcd loaders.
		Added experimental wlf2vcd in contrib.  It is not currently
		compiled or used.
		Corrected non-functional typos in documentation.
3.3.54	02jan14	Added LZ4 double compression on hierarchy tree for FST when
		hierarchy size exceeds 4MB.
		Fix to regular expression filtering when +I+ form expressions
		are encountered in the SST.  Previously, the wrong value of
		regex match was used on 32-bit architectures due to the
		stack layout.
		Removed --disable-inline-asm ./configure flag as inline
		assembly has been removed because it is generating incorrectly
		in some cases on x86_64.
3.3.55	06feb14	Fixed problem with FST_DYNAMIC_ALIAS_DISABLE enabled when
		Judy arrays are not present.
		FST writer performance tweaks for traces with millions of
		signal declarations.
		Keep FSDB_VT_STREAM (FSDB transaction type) traces from
		attempting to be read (for now) as they aren't yet processed.
		Added more space efficient FST dynamic alias encoding.
		Tempfile creation fix for Windows.  Using tmpnam() is not
		enough and fails depending on user permissions.
		Make vcd2fst use FastLZ instead of LZ4 as a default compression
		type if an EVCD file is being processed as it (re-)compresses
		much better.  Using -4/-F/-Z still gives expected results.
		Changed double printf formatting for FSDB to "%.16g" to match
		VCD formatting.
		Added very fast I/O write capability to fst2vcd.
		Added support for FSDB_BYTES_PER_BIT_2B (EVCD) in FSDB loader.
		Added experimental fsdb2vcd in contrib.  It is not currently
		compiled or used.
		Fix to treesearch to remove duplicate signal names because of
		faulty dumpers.
		Repscript fix for if -R starts without a dumpfile name.
3.3.56	12feb14	Added another crash fix patch for GTK-OSX.
		Fix to regex search to remove duplicate signal names because of
		faulty dumpers.
		Fix to configure.ac for MSYS not adding -lcomdlg32 when Tcl
		is disabled.
		Valgrind fix on deallocated context: old GLOBALS pointer could
		be examined in set_GLOBALS_x().
		Minor cleanup in treesearch_gtk2.c: removed redundant show
		widget invocation.
		Added missing compressBound() for compress2() dest mallocs.
3.3.57	13feb14	Fix for Electric Fence crash in vlist_freeze().
		Updated LZ4 for version r113.
3.3.58	16mar14	Added /Data Format/Popcnt function for ones counting.
		Warnings fixes from new Clang 3.4 scan-build.
		Updated VCD ID generation in various helpers to use a faster,
		equivalent algorithm.
		Change [1] at end of struct to C99 [] notation with appropriate
		allocation size modification.
		System_profiler speed fix for OSX.
3.3.59	26apr14	Use Duff's Device for 8 byte -> 1 byte binary value compression
		algorithm in FST writer.
		Warnings fixes from cppcheck.
		Moved MinGW for FST to using different windows tempfile
		generation instead of tmpfile().
		Removed fflush() in FST for MinGW in places that can cause
		crashes with read only files.
		Updated man page for gtkwave.1 indicating that XID is in hex.
		Allow decimal conversions on popcnt filtered vectors that are
		greater than 64 bits (they will never overflow).
3.3.60	14may14	Fix MinGW tmpfile_open() patch from previous release as it
		was using the wrong filename.
		Harden fsdb reader against xtags that move backward in time.
3.3.61	27jun14	Parameterized number of named markers, so that
		--enable-manymarkers at configure time allows up to 702
		named markers instead of 26 (disabled by default).
		Updated LZ4 for version r118.
		Fixed broken VCD/TIM export in Windows (broken by new file
		requester).
3.3.62	29aug14	Added zoom_full, zoom_size, and move_to_time to the dbus
		interface (dbus enabled by --with-gconf).
		Updated LZ4 to version r120 (r121 files are the same).
		Compiler warnings fixes for gtk+-1.2 (-Wall -Wshadow -Wextra).
3.3.63	06nov14	Updated LZ4 for version r123.
		Added fine horiz scrolling in wavewindow (when using the wheel
		on a mouse) if shift pressed.
		Timescale fix for Verilator where it emits 0ps as a timescale.
		Added sample gtkwave.appdata.xml file in share/appdata.
3.3.64	25nov14	Fix to FileChooser to prevent requester from blocking on asking
		for a directory if a dumpfile is loaded without some amount of
		absolute/relative pathname.
		Updated LZ4 for version r124.
		Fix for x-windows OSX compiles.
3.3.65	01apr15	Added --, -I-, etc. option to port filtering in SST.  Using
		-- for example filters all non-ports from search results.
		Updated LZ4 for version r126.
		Minor warnings fixes.
                Moved TCL_LDADD/TK_LDADD before	FSDB_LDADD to avoid stale
                Tcl library version conflicts.
		Removed appending [31:0] to vcd loaded integer names.
		Reduced recursion depth in GHW signal loader to prevent
		stack overflow crashes.
		Added support for synthetic clocks in FST file.
		Update timetrace marking so it runs quicker for large traces.
3.3.66	05jul15	Faster fsdb initialization.
		Fix vcd recoder loader crash for malformed vcd if signal is
		declared as bits and a real valued change is encountered for
		the value change.
		Fixed crash in vcd2vzt for vcd files with no value changes
		(likely a malformed vcd).
		Added fsdbReaderResetSignalList() to prevent signals from
		loading over and over when unnecessary.
		Compile fixes for renamed functions and defines in gtk osx.
3.3.67	24sep15	Updated LZ4 for version r131.
		Fixed right justify ascii datatype display.
3.3.68	18nov15	Update copyright date.
		Added named markers capability to From: and To: time value
		input boxes.
		Added support for fixed point binary numbers for both signed
		and unsigned decimal display types.
3.3.69	03feb16	Added missing EXTLOAD_CFLAGS declarations in configure.ac for
		FSDB detection when only .a files are present (necessary for
		Ubuntu).
		Fixed valgrind warning in fst.c for dead memory allocation.
		Fixed signed fixed point binary number shift for negative
		numbers.
		Added ghw patch for missing enum crash in ghw files.
3.3.70	14feb16	Various warnings fixes from new version of scan-build.
		Crash fix in Windows for transaction traces (broken since
		VCD/TIM export in 3.3.61).
3.3.71	06apr16	Printf format warnings fixes in lxt2_write.c.
		Added SVG gtkwave icon in
		share/icons/hicolor/scalable/apps/gtkwave.svg directory.
		Make gtkwave interpret values as double precision FP for
		plotting when BitsToReal is enabled. Also keeps analog mode
		enabled when selecting numerical formats (which allows
		enabling/disabling BitsToReal without going out of analog
		mode). Disabling analog mode can be done using the
		existing Analog->Off menu option.
		Fix broken non-canonical bit ordering (IBM) single bit
		extraction in process_tcl_list().
		Fixed gtkwave::gtkwave::addSignalsFromList so it can handle
		subset and forward/reverse extractions on signals.
		Remove FST_WRITER_PARALLEL from MinGW CFLAGS as some recent
		versions of MinGW have issues with struct timespec when
		pthread.h is included.
		Added /Edit/Delete to destroy traces without affecting the
		existing cut buffer.
3.3.72	13apr16	Revert to old gtkwave.appdata.xml as the new one is causing
		problems with appstream-util validation.
3.3.73	11jun16	Added dragzoom_threshold rc variable to accommodate input
		devices that have a noisy 3rd mouse button.
		Fix emission of all filter names so they are emitted in
		canonical fashion so as to avoid growing strings of ../ in
		savefiles.
3.3.74	27jul16	Fix for when a signal name is used as a hierarchy name at the
		same level of scope.  (Affects fsdb.)
		Added --rcvar command line option to insert rc variable changes
		individually without needing to point to a configuration file.
		Change to combine traces down/up routines to handle 2D vector
		name generation.
		Allow FSDB files to contain ".gz" and ".bz2" suffixes as the
		libnffr loader can handle those.
		If a variable is declared in the dumpfile as an integer, then
		it is imported to the waveform display as an integer instead of
		a hex value. This works for dump file formats that show the
		datatype in the SST window.
		Added code that should prevent the primary marker from
		disappearing unexpectedly as well as dynamic resizing being
		stuck in the unset marker width.
3.3.75	02aug16	Fix crash when -S and -W are used in tandem.
3.3.76	13aug16	Fix for --disable-tcl in ./configure caused by 3.3.75 fix.
		Crash fix in fstapi.c on read value at time accessing of
		FST files that use new dynamic aliases, FastLZ, or LZ4.  This
		primarily affects rtlbrowse.
3.3.77	03oct16	Updated documentation to include an appendix on FST
		implementation details.
		Removed '!A || (A && B)' is equivalent to '!A || B' redundant
		condition checks where found in source.
		Added hier_ignore_escapes rc variable.
		Dynamic resizing tweaks for when it is turned off.
		Added HUWL-? value types to signal_change_list() to keep GHW
		files from crashing Tcl scripts.
3.3.78	26oct16	Fixed crash when using multiple pattern searches.
3.3.79	31dec16	Disable accelerator keys in twinwave single window mode to
		avoid focus conflicts.
		Fixes for -fstrict-aliasing and other recent warnings.
		Added fill_waveform rc variable and corresponding menu option
		(/View/Show Filled High Values) to allow filling in the lower
		portion of high values for increased visibility.
3.3.80	17mar17	Added "/View/Mouseover Copies To Clipboard" menu option to
		allow copying values into the clipboard so they can be pasted
		into text editors, etc.
3.3.81	09jun17	Added max_fsdb_trees environment variable.
		Fixed -C option so it is persistent across new tabs.
		Integrated updated GHW reader code.
3.3.82	02jul17	Get sys_fst working with VCS VPI.
		Added string concatenations for vectors.
		Added asserts to ghwlib.c to make scan-view clean.
3.3.83	04aug17	Preserve search type for regex search across reloads or
		close/reopens of regex search widget.
		Update local libz to current version.
3.3.84	03sep17	Updated FSDB reader with experimental FST tree build
		routines for faster init.
		Removed warnings found when compiling with -Wshadow.
		Automatically enable --comphier for FST/FSDB/AE2 if facility
		count reaches 500000.  This is to reduce memory consumption
		for traces with very many signals.  Added disable_auto_comphier
		to override this behavior.
		Fix null pointer sent to gtk_clipboard_set_text() for
		mouseover to clipboard cut ops.
3.3.85	06sep17	Fix integer type in GHW loader so integer value changes are
		not stored as a string. This then allows bitwise manipulations
		of integers.
3.3.86	03oct17	Added recurse import function (found before only in the hier
		search) into the SST.
		Removed obsolete bundle functionality from SST as recurse
		import more accurately imports recursively.
		Made entrybox taller (using -1) as recent versions of
		gnome have taller window titlebars and the widget was not
		tall enough.
3.3.87	28dec17	Added missing prototype for ghw_read_sm_hdr in ghwlib.h.
		Made intptr_t changes vs long during casting for win64.
		Warnings fixes.
		Re-enable twinwave for Win32/64.
		Added missing gtkwave_bin_launcher.sh in contrib/bundle_for_osx
		Makefile.am.
3.3.88	20feb18	Added --sstexclude command line option to prune unwanted
		clutter from the SST window.
                Updated "/View/Mouseover Copies To Clipboard" menu option to
                copying signal names into the clipboard so they can be pasted
                into text editors, etc.
                Fixed Write Save File to handle	getting	confused by initial
                cancel then retry.
		Updated v2k input/output declarations to handle unpacked arrays.
		Fix for pattern marks that could overshoot the left marker.
3.3.89  17mar18 Added support for 32-bit conversions in	BitsToReal.
		Crash fix for pattern search with reals using LXT, LXT2, VZT.
3.3.90  08may18 For Cut Traces, fix up scroll position if there are traces
                above the current row being cut.
                Bits to	real crash fix for very	large floats.
		Fixed gray code conversions that were incomplete for right
		justified vectors such that the vector length is not a
		multiple of the radix size (4 for hex, 3 for oct).
		Warray-bounds warning fix for 32-bit conversions in BitsToReal.
3.3.91	29may18	Added support for GSettings for when GConf is removed from
		distributions such as Debian and Ubuntu.
		Performance fix for large number of groups (remove useless
		recursion required for transaction traces).
3.3.92	05jul18	Harden FST loader for missing .hier files (if applicable).
		Fixed broken GTK+-1.2 compile of twinwave.
		Fix scrolling on help window by adding scroll to end mark.
		Fix scrolling on status window when use_toolbutton_interface
		rc var is set to FALSE by adding scroll to end mark.
		Updated BUILT_SOURCES for vermin.
		extern yy_size_t yyleng fix in rtlbrowse.
3.3.93	03aug18	Added sst_dbl_action_type rc variable which controls side-
		effect of double-clicking in SST signals pane.
		Added xml2stems Verilator XML to rtlbrowse stems converter
		to distribution.  Eventually vermin will be removed.
		Added missing realpath() in udp emission in vermin.
3.3.94	03sep18	Applied ghwlib.c patch for dealing with null ranges.
		Added second chance algorithm for find_dumpfile() in case
		it fails.
3.3.95	07oct18 Added fflush on stdout for help text as fix for possible
		stdout problem with mingw/msys shells.
		Added preliminary support for Time datatype.
                Warnings fixes for Verilator integration.
                Fixed install_proc_filter usage	for Tcl	invocation.
		Change integer type to "integer" in SST to differentiate it
		from sv ints.
		Premiminary support for enum tables embedded in FST files.
3.3.96	15nov18	Changed to standardized zoom in/out/full hotkeys.
		Added time backtracking warning (for partial mode) to lxt2vcd.
                VCD time backtracking fix (not for interactive mode).
		Added drag_failed handling (can press ESC) to DnD operations.
                Prevent	missing	file in	savefile from causing savefile to be
                read as	VCD by mistake.
		Changed to Dinotrace-like 0s/1s rendering for bit vectors so
		values can be discerned without seeing the full value text.
                Removed unneeded pango_layout_get_extents() inside call for
                font_engine_draw_string().
		Changed bsearch_trunc() to run in constant time when monospace
		fonts are in use.
		Added missing GDK_SCROLL_MASK to signal area (need for gtk3,
		but not for other versions for some reason).
3.3.97	23nov18	Need to	set menu_wlist entry NULL on gtk_widget_destroy().
                Fix on vtype()/vtype2()	to detect 'x' and make the coloration
                red on newly-displayed traces. 	(Bug new from Dinotrace-like
                rendering in 3.3.96.)
3.3.98	27dec18	Removed pccts and vermin.  Use xml2stems instead.
3.3.99	09feb19	Added visible single bit glitches as a yellow dot (if enabled
		with --rcvar 'vcd_preserve_glitches on').
                Fixed print routine broken by bsearch_trunc() optimization in
                version	3.3.96.
3.3.100	20mar19	FSDB fix for variable declarations of array of reals.
                Added Real, Time, Enum, and Popcnt flags to Edit/Show-Change.
		Ensure Show-Change regenerates analog traces.
                Added braces inside Tcl source command to allow spaces in
                filenames for Tcl scripts.
3.3.101	08may19	Added gtkwave::getFacDir, gtkwave::getFacVtype, and
		gtkwave::getFacDtype Tcl accessor functions that function
		similar to gtkwave::getFacName.
		Pair $end with $dumpvars in VCD	writers.
		Make %.16g printing in baseconvert.c more resistant to power
		of 10 roundoff errors.
                Remove register	keyword	where applicable as is deprecated.
		Added --saveonexit gtkwave command line option.
3.3.102	21sep19	Remove redundant TREE_VHDL_ST_PACKAGE from SST exclude.
		Added addCommentTracesFromList tcl command from user patch.
		Harden savefile	loader for missing group start on vectors.
		Preliminary VHDL support for wlf2vcd.
		Add missing return value checks on mmap() in FST writer.
3.3.103 03nov19 Fix MAP_FAILED missing for MinGW.
                Fix to make the coloration red on 'u' traces.  (Bug from
                Dinotrace-like rendering in 3.3.96.)
                Typo fix on missing group start on vectors.
3.3.104	24jan20	Added support for loading .vf files (provided FSDB reader
		libraries are enabled).
		Added support for dumping variable types in vcd saveer, not
		just using "wire" for non-reals/strings.
		Fix for uninitialized values at time 0 for FST, FSDB loaders.
3.3.105	01jul20	Fix bad (void) of is_closing in fstDestroyMmaps when using
		Cygwin or MinGW.
		Fix left shift overflow in cvt_fpsdec().
		Add in missing file/translate/process filter for reals.
		Fix for bitvec merging in GHW so integers arrays can be viewed.
		Added Shift-Up/Down highlight with scroll in order to assist
		with left/right arrow based transition movement.
		Fix Show Wave Highlight so it is not dependent on Show Grid.
		Fix negative MSBs on VCD loaders for vectors.
		Fix getpwuid() null pointer exception.
		Add missing recursion case to treenamefix().
		Fix lock/unlock misuse of pthread mutexes across threads.
		Examine env var $HOME for home dir on geteuid failure.
3.3.106	06jul20	Fix for GDK_KEY_* definitions missing in older GDK versions.
		Fix Shift-Up/Down highlight to traverse inside groups.
		Resync ghwlib to handled unbounded arrays.
3.3.107 30sep20 Fix left shift overflow in cvt_fpsudec for fixed point.
                Added Find First One trace type	options.
                Fixed bug in Show-Change All Highlighted.