Log Message:
graphics/graphviz: Update to 5.0.0

- Patch for lefty on OpenBSD removed (lefty is not installed anymore).
- Patch for configure.ac modified (list Github Issue #370 and remove hunk for
  OCaml that does no longer work).
- Patch for version.m4 removed (no longer required).
- Explicit dependency for urw-fonts added.
- Warning suppression for GCC 2 removed.
- swig is now a tool dependency (as documented by upstream).
- Guile option removed (already broken with older package versions).
- OCaml option removed (already broken with older package versions).
- Lua, Perl and Tcl language extension options are now disabled by default
  (to reduce expensive dependencies).

5.0.0 - 2022-07-07
==================

Changed
-------
- `use_sanitizers` option has been removed from the CMake build system.

Fixed
-----
- *Breaking*: The 4.0.0 change replacing the `Agiodisc_t` struct member
  `putstr` by `printf` has been reverted
- graphviz-4.0.0: build error: cmd/tools/gvcolor.c:159: undefined reference to
  `fmax` #2246
- Failed assertion in `chkSgraph` for twopi layout and ortho splines. #14
- Failed assertion in `chkSgraph` for dot layout and ortho splines. #1408
- Failed assertion in `chkSgraph` for circo layout and ortho splines. #1990
- Segmentation Fault with splines="ortho". #1658
- Transparent Label appear in SVG output #146
- Binary tcl modules should compile with -module #1285
- b15.gv crashes dot #827
- heap overflow in function startElementHandler in gxl2gv.c #2093
- Crash on assertion #121
- `xdotversion` attribute is no longer misparsed. This was a regression in
  Graphviz 2.47.2. #358

4.0.0 - 2022-05-29
==================

Changed
-------
- *Breaking*: The `mark` field of the `Agnodeinfo_t` struct is now a
  `size_t` instead of a `char`.
- *Breaking*: The unused `shape_t` struct has been removed from the public
  header `types.h`
- *Breaking*: The `Agiodisc_t` struct member `putstr` that was previously an
  `fputs` analog is replaced by `printf` that is required to behave similar to
  `fprintf`.
- the `mingle`, `diffimg`, `gvmap`, and `edgepaint` binaries are now included in
  the CMake build system
- the `gvmap.sh` and `vimdot` scripts are now installed by the CMake build
  system on operating systems other than Windows
- a brief note about the (previously undocumented) behavior of Graphviz when
  sent `SIGUSR1` is now mentioned in the man page
- build system support for `dotty`, `lefty`, and `lneato` has been removed
- the CMake build system now includes the DevIL, GDK, GhostScript, GTK, LASi,
  Poppler, Quartz, Rsvg, Visio, WebP, and Xlib plugins
- `awk` is no longer a build-time dependency #2118

Fixed
-----
- `agcanon`, `agcanonStr`, and `agwrite` now return error values on memory
  allocation failures instead of crashing or corrupting data
- `gvpr` programs can now pass dynamically allocated arguments to user-defined
  functions without corrupting their content. Some cases of this were a
  regression in Graphviz 2.46.0. Other cases have existed since the first
  release of `gvpr`. #2185
- spurious "no hard-coded metrics" warnings on labels with empty lines \ 
#2179
- fixed corruption of user shape characteristics during EPSF initialization
- output formats canon, dot, and xdot are not completely faithful to input #2184
- gvpr index function produces wrong results #2211. This was a regression in
  Graphviz 2.47.0.
- Error on more than 128 cluster subgraphs #2080
- `dot2gxl` no longer crashes on input `<node id="">` #2092
- remove itos #2229
- `sfdp` no longer crashes on certain graphs with cycles. #2225
- `gml2gv` does not handle integer penwidth correctly #1871

Removed
-------
- the glitz plugin has been removed. The plugin was never complete and
  distributions no longer ship glitz.

3.0.0 - 2022-02-26
==================

Changed
-------
- *Breaking*: Using Graphviz as a library on Windows now requires the `GVDLL`
  symbol to be set to ensure correct linking.
- *Breaking*: Graphviz headers no longer define the `boolean` type. A
  replacement is C99 `bool` in the C standard library's stdbool.h.
- *Breaking*: The `insidefn` member of the `shape_functions` struct must now
  be a pointer to a function returning a C99 `bool` instead of a
  Graphviz-specific `boolean`.
- *Breaking*: The `swapEnds` and `splineMerge` members of the `splineInfo`
  struct must now be pointers to functions returning a C99 `bool`s instead of
  Graphviz-specific `boolean`s. Similarly the `ignoreSwap` and `isOrtho` members
  of this struct must now be C99 `bool`s instead of a Graphviz-specific
  `boolean`s.
- *Breaking*: The `defined`, `constrained`, `clip`, and `dyna` fields of the
  `port` struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `set` and `html` fields of the `textlabel_t` struct are now
  C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `usershape` field of the `shape_desc` struct is now a C99
  `bool` instead of a Graphviz-specific `boolean`.
- *Breaking*: The `candidate` and `valid` fields of the `rank_t` struct are
  now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `filled`, `landscape`, and `centered` fields of the
  `layout_t` struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `has_images`, `has_flat_edges`, `has_sourcerank`,
  `has_sinkrank`, `expanded`, and `exact_ranksep` fields of the `Agraphinfo_t`
  struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `clustnode` and `has_port` fields of the `Agnodeinfo_t`
  struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `conc_opp_flag` field of the `Agedgeinfo_t` struct is now a
  C99 `bool` instead of a Graphviz-specific `boolean`.
- *Breaking*: The `must_inline` and `nocache` fields of the `usershape_t`
  struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `device_sets_dpi`, `external_context`, `fit_mode`,
  `needs_refresh`, `click`, `has_grown`, and `has_been_rendered` fields of the
  `GVJ_t` struct are now C99 `bool`s instead of Graphviz-specific `boolean`s.
- *Breaking*: The `loadimage` member of the `gvloadimage_engine_t` struct must
  now accept a C99 `bool` parameter instead of a former Graphviz-specific
  `boolean` parameter.
- *Breaking*: The `textlayout` member of the `gvtextlayout_engine_t` struct
  must now return a C99 `bool` instead of a Graphviz-specific `boolean`.
- *Breaking*: The `config` and `auto_outfile_names` members of the
  `GVC_common_s` struct are now C99 `bool`s instead of Graphviz-specific
  `boolean`s.
- *Breaking*: The `fixed` member of the `pack_info` struct is now an array of
  C99 `bool`s instead of an array of Graphviz-specific `boolean`s. Similarly,
  `pack_graph` now takes a `bool` array instead of a `boolean` array.
- *Breaking*: `pccomps` now takes a C99 `bool` instead of a `boolean` output
  parameter.
- *Breaking*: `gvusershape_file_access` now returns a C99 `bool` instead of a
  Graphviz-specific `boolean`.
- *Breaking*: 1-bit fields of the `obj_state_s` struct are now unsigned
  instead of signed.
- *Breaking*: Graphviz headers no longer define the constant `MAXSHORT`. A
  drop-in replacement is `SHRT_MAX` in the C standard library's limits.h.
- *Breaking*: Graphviz headers no lnger define `NIL` macros. A drop-in
  replacement is `NULL` in the C standard library's stddef.h.
- *Breaking*: Graphviz headers no longer define the `NOT` macro. A drop-in
  replacement is the C/C++ operator `!`.
- *Breaking*: Graphviz headers no longer (re-)define the C constants `INT_MIN`
  and `INT_MAX`. Replacements can be found in the C standard library's limits.h.
- *Breaking*: Graphviz headers no longer define the constant `_DUMMY_ELEM`.
- *Breaking*: The `-m` memory test option to Graphviz command-line programs
  has been deprecated. Tools such as
  [Leak Sanitizer](https://clang.llvm.org/docs/LeakSanitizer.html) are a more
  effective modern way of diagnosing memory safety issues.
- *Breaking*: Graphviz headers no longer define the constant `MAXFLOAT`. A
  replacement is `FLT_MAX` in the C standard library's float.h.
- The Ming plugin that produced Shockwave files has been removed. This format
  was EOLed by Adobe in April 2019. #2160
- CentOS 7 packages now include libmingle and the `mingle` program.
- The tclpkg Makefile no longer suppresses `-fstack-clash-protection` nor
  other compiler options containing `-x`
- Lefty is no longer enabled in the portable source tarball.
- on Linux, the CMake build system uses the standard `GNUInstallDirs` to locate
  target installation paths

Fixed
-----
- *Breaking*: GVPR now typedefs `ssize_t` as `SSIZE_T` on Windows instead of
  `int` #1804
- *Breaking*: `vgpanecmd` in the TCL tclpathplan library no longer accepts
  abbreviated commands (e.g. `r` for `rotate`) and commands must be given in
  full #1961
- fix detection of unavailable output format
- SVG layout doesn't always respect requested size #1855
- mismatched format string in `mingle`
- Building from scratch with Visual Studio fails #2175
- Plugins are not configured on MinGW #2176
- gvpr on MinGW does not support absolute paths #1780
- PNG format not available in CMake builds with MinGW
- tclpkg Makefile corrupts CFLAGS #2177
- lneato -? sometimes fails with STATUS_STACK_BUFFER_OVERRUN on Windows #1934
- expr misinterprets `<<` and `>>` #2103
- stdout and stderr are not flushed at exit on MinGW #2178
- Gvedit on macOS now understands the `-?` help command line argument
- CMAKE_LIBRARY_PATH is not honored #1973
- assert failure with `nslimit1=0` #1902
- `gvpr` usage output has been restored. This was a regression in Graphviz
  2.46.0.
- C++ API not usable after install #2196