[deutex] 01/13: New upstream version 5.1.0

Fabian Greffrath fabian at moszumanska.debian.org
Fri Dec 15 19:59:38 UTC 2017


This is an automated email from the git hooks/post-receive script.

fabian pushed a commit to annotated tag debian/5.1.0-1
in repository deutex.

commit cd21e460ae9cce15b95862eba696463c45ab2ed6
Author: Fabian Greffrath <fabian at debian.org>
Date:   Fri Dec 15 19:20:54 2017 +0100

    New upstream version 5.1.0
---
 .gitignore         |   23 +
 .travis.yml        |    3 +
 Makefile.in        |  777 --------
 NEWS.adoc          |  756 +++++++-
 README.adoc        |   47 +-
 aclocal.m4         | 1428 --------------
 bootstrap          |    3 +
 compile            |  348 ----
 config.h.in        |   28 -
 configure          | 5405 ----------------------------------------------------
 configure.ac       |    2 +-
 depcomp            |  791 --------
 install-sh         |  501 -----
 man/.gitignore     |    2 +
 man/Makefile.in    |  488 -----
 man/deutex.txt.in  |    3 +
 missing            |  215 ---
 pkg.w32/.gitignore |    3 +
 src/.gitignore     |    4 +
 src/Makefile.am    |    6 +-
 src/Makefile.in    |  596 ------
 src/compose.c      |    4 +-
 src/deutex.c       |   16 +
 src/deutex.h       |    7 +-
 src/endianm.c      |   13 +
 src/endianm.h      |    1 +
 src/ident.c        |   22 +-
 src/picture.c      |  170 +-
 src/png_tools.c    |  159 ++
 src/png_tools.h    |   19 +
 src/sound.c        |    2 +-
 src/tools.h        |    4 +
 32 files changed, 1166 insertions(+), 10680 deletions(-)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..086fa11
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,23 @@
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+Makefile.in
+/autom4te.cache
+/aclocal.m4
+/compile
+/config.guess
+/config.h
+/config.h.in
+/config.log
+/config.status
+/configure
+/depcomp
+/install-sh
+/missing
+/stamp-h1
+
+*.html
+
+*~
+\#*\#
+.\#*
+.DS_Store
+.vscode
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..519df9a
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,3 @@
+language: c
+compiler: gcc
+script: ./bootstrap && ./configure && make
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diff --git a/NEWS.adoc b/NEWS.adoc
index 29d2e8f..7f9ffb4 100644
--- a/NEWS.adoc
+++ b/NEWS.adoc
@@ -1,3 +1,25 @@
+DeuTex release notes
+====================
+
+5.1.0 (2017-08-11)
+------------------
+
+General
+~~~~~~~
+  * The `-overwrite` option now works.
+  * Levels are extracted/inserted in a way to preserve GL nodes.
+  * Inserting pictures with a height of 1 pixel no longer causes a
+    malloc error, and allows the operation of rebuilding a _Doom_ 1 or
+    2 IWAD.
+  * texture lump file names can now be overridden.
+
+Graphics
+~~~~~~~~
+  * DeuTex supports reading and writing sprite offsets based on PNG
+    +grAb+ chunks in a manner compatible with SLADE and ZDoom.
+    +wadinfo.txt+ overrides these offsets unless `-pngoffsets` is
+    used.
+
 5.0.0 (2017-07-31)
 ------------------
 
@@ -51,6 +73,734 @@ Build systems, code standards
   * AsciiDoc now used for documentation, and building the manpage
     requires it to be installed.
 
-// Old release notes for 4.4.902 and earlier are not (presently)
-// available in this file.  See the version control repository for those
-// details.
+4.4.902 (2005-08-31)
+--------------------
+
+Build
+~~~~~
+  * Vanilla `make` compatibility: removed all occurrences of `$<` not in
+    inference rules in the makefile.
+  * Vanilla `make` compatibility: removed all `\` followed by empty
+    lines.  On NCR MP-RAS, `make` quotes all empty lines that follow!
+  * There is now a `./configure` script (GNU autoconf work-alike). +
+    +
+    Installing somewhere else than `/usr/local` is now done by giving
+    `./configure` the `--prefix` option. +
+    +
+    `CC`, `CFLAGS` and `LDFLAGS` are now auto-detected.  The defaults
+    can be overridden by passing `./configure` the `--cc`, `--cflags`
+    and `--ldflags` options. +
+    +
+    The fixed-size types (`Int16` etc.) are now correctly set on all
+    LP64 platforms, not just Alpha.
+  * The OPTIONS section is now updated automatically.  This impacts
+    no-one but hackers.
+
+Code
+~~~~
+  * two `char[8]` were used as `char[9]` (caught by NCR/MetaWare `cc` on
+    NCR MP-RAS).
+  * C89 compatibility: removed a few `//` comments that had slipped into
+    the source.
+  * A few functions were declared as `static` but defined as `extern`
+    (caught by NCR/MetaWare `cc` on NCR MP-RAS).
+  * `static`- and `const`-correctness fixes.
+  * Removed the little-used `Legal()` function.
+
+Doc
+~~~
+  * Man page: in DESCRIPTION, added a short list of examples to help new
+    users getting started.  Added a FILES section.  Made the SEE ALSO
+    section a bit more specific.
+  * In `--help` and the man page, divided the options into groups and
+    sorted them alphabetically within each group.  It seems to be
+    clearer that way.
+  * Added a FAQ.
+  * Obfuscated all email addresses (`tr .@ +=`).
+
+_Strife_
+~~~~~~~~
+The `SCRIPT`_nn_ lumps are now extracted in human-readable form into the
+`scripts/` directory.  The reverse operation is not implemented.  Since
+we understand the Strife script format only partially, the output format
+is still in flux.  New option `-scripts` to extract only the scripts.
+The reverse engineering was done in collaboration with
+Matthew W. Miller.
+
+Graphics
+~~~~~~~~
+  * It’s now possible to build wads that use a custom `PLAYPAL`.
+    Previously, DeuTex always used the PLAYPAL from the iwad when
+    building. It now uses the one in `lumps/` if it exists.  Thanks to
+    Ras2 for reporting the problem.
+  * Rewrote `COLdiff()` as a macro.  On my system, the time to build a
+    wad made of a single 1M-pixel patch is down from 1.32s to 0.85s (35%
+    faster), which is not surprising since DeuTex used to spend about
+    40% of its time in `COLdiff()`.  The time to rebuild the _Strife_
+    iwad is down from 8.6s to 7.2s (16% faster).
+  * Removed the “quantisation is slow” warnings that DeuTex used to spew
+    when composing from PPMs and 24-bit BMPs.  Those warnings were
+    relevant to an old quantisation algorithm that has not been used
+    since at least version 3.8 (`#ifdef QUANTSLOW`).
+  * Lifted the arbitrary limit of 256 patches per texture.  DeuTex will
+    now accept as many patches as the wad format allows (32,767).  If a
+    texture definition has more than that many patches, DeuTex will
+    discard the excess patches with a warning, instead of dying with a
+    cryptic message like `Line n: Illegal char '*'`.
+  * Lifted the arbitrary limit of 4096 on patch width.  DeuTex now
+    handles patches as wide as the wad format allows (32,767).
+  * Textures wider than 4096 are now accepted with a warning.  PrBoom
+    2.2.3 is known to take textures as wide as 16,384 pixels.  8192×128
+    textures make XDoom 20001001 crash in `Z_Malloc`.  1024×128 textures
+    make Doom freeze in `R_Init`.  The maximum acceptable widths might
+    be higher if the height of the texture is lesser than 128 but I
+    haven’t looked into it.  Thanks to David Damerell for testing.
+
+Misc
+~~~~
+  * Removed the annoying startup banner.
+  * If no command is given, emit a meaningful error message instead of
+    suggesting to switch to WinTex.  And exit with code 1 instead
+    of 255.
+  * All messages now look like this: +
+    +
+        _c code string_ +
+    +
+    _c_ is the class of the message: *i* for information, *w* for
+    warning, *E* for error, *B* for bug. +
+    +
+    _code_ is a unique 4-character alphanumeric code which unambiguously
+    identifies the message. +
+    +
+    Some of the messages have been rewritten to be more informative
+    (mention the filename, the nature of the error, etc.).
+  * At the request of Kim “Sparky” Parrott, all messages are now copied
+    to a file named `deutex.log` (`deusf.log` for DeuSF).  The default
+    log file name can be overridden through the `-log` option.  If you
+    don’t want a log file, try `-log /dev/null` (Unix) or `-log nul`
+    (DOS). +
+    +
+    The log is only written if a command that works with wads is
+    given. `--help`, `--version` etc. do not create a log.
+  * Removed the 30 command-line arguments limit.
+  * Made exit status a little bit more normal (2 for errors and 3 for
+    bugs instead of -5 and -10).
+
+Sound
+~~~~~
+  * New option `-rate` to specify what DeuTex should do when including
+    sound files whose sample rate is not exactly 11025 Hz.  The choices
+    are: +
+    +
+    `reject`: consider it a fatal error and exit immediately with a
+    non-zero exit code. +
+    `force`: emit a warning and force it to 11025 Hz by resampling up or
+    down. +
+    `warn`: emit a warning but include it as is anyway. +
+    `accept`: silently include it as is. +
+    +
+    Previously, the default (and only option) used to be `force`.  It’s
+    now `warn`. +
+    +
+    Thanks to Matthew W. Miller for telling me about this issue (which
+    he did in 1999; the six-year delay is mine, all mine).
+  * Write errors while extracting PC speaker sounds are now actually
+    detected and reported.
+
+4.4.0 (2000-01-05)
+------------------
+
+Game
+~~~~
+  * _Hexen_: musics are now identified and extracted properly. +
+     +
+    The old music identification code assumed that any lump whose name
+    does not begin with either `D_` or `MUS_` can’t be a music.  It
+    worked for _Doom_, _Heretic_ and _Strife_ but, for _Hexen_, it
+    caused all musics to be seen as plain lumps and extracted
+    accordingly into the `lumps/` directory.  DeuTex even tried to
+    interprete `STALKR` and `WINNOWR` as pictures and said silly things
+    about them having a “width greater than 4096”. +
+     +
+    The new code really checks whether the lump begins with `MUS\x1a`
+    instead of just looking at its name.  A lump is now deemed to be a
+    music if and only if it begins with `MUS\x1a`. +
+     +
+    As a side-effect, certain operations (appending sprites and flats
+    and merging) must have become slower.  Furthermore, since these used
+    to blindly assume that any lump whose name begins with either `D_`
+    or `MUS_` is a music, their semantics might have changed.  If you
+    find they don’t do what you want, try again using the `-musid`
+    option and let me know whether it improves your condition.
+  * _Hexen_, _Doom_ alpha 0.4/0.5: levels are now properly extracted and
+    included. +
+     +
+    There have been changes in the undocumented details of DeuTex’s
+    behaviour with respect to levels.  The one that is most likely to be
+    noticed is that, when including a level, DeuTex now copies the
+    entire contents of the `levels/` pwad, starting from the level
+    label.  Previously, it included at most the 11 following lumps, and
+    only if they had the expected names (`THINGS`, `VERTEXES` and so
+    on). +
+     +
+    But, basically, if the `levels/` pwads contain, as they should, all
+    the needed lumps and nothing else, there shouldn’t be any trouble.
+  * _Heretic_ and _Hexen_: does not abort anymore with `Bug: *** idinx
+    (12) ***` when trying to include the graphic lumps (resp. `CREDIT`,
+    `E2END`, `FINAL1`, `FINAL2`, `HELP1`, `HELP2`, `TITLE` and `CREDIT`,
+    `FINALE1`, `FINALE2`, `FINALE3`, `HELP1`, `HELP2`, `INTERPIC`,
+    `TITLE`).  More generally, DeuTex now accepts to compose wads even
+    when there are graphic files in `lumps/`.
+  * _Hexen_: does not abort anymore with `Height of
+    FLAT ./flats/x_001.ppm is not 64 or 65` when trying to include flats
+    `X_001` through `X_011`.  In addition, DeuTex now just emits a
+    warning instead of aborting for other oddball heights (i.e. not 64,
+    65 or 128).  Have fun. ;-) This is true for all iwads, not only
+    _Hexen_.
+
+Graphics
+~~~~~~~~
+The annoying “quantisation is slow” warnings now appear at most once.
+
+Misc
+~~~~
+  * To disambiguate the `<count> warnings omitted` message, added
+    optional scope prefix and changed the picture extraction function to
+    use it.
+  * Got rid of the “don’t bother Olivier” banner. People must have got
+    the message by now.
+
+4.3.0 (1999-12-24)
+------------------
+
+Graphics
+~~~~~~~~
+Fixed ancient bug where DeuTex sometimes failed to include custom
+patches if they were not explicitly listed in the `[patches]` section.
+If the first patch used in `texture1.txt` was a custom patch, it had to
+be listed in `[patches]` or DeuTex would forget to include it.  This is
+the same bug Olivier mentioned in the home page:
+
+[quote]
+The support for wall patches in DeuTex has been modified.  You must now
+explicitely declare all your patches in a [PATCHE] section. +
+ +
+If you don’t do this, DeuTex will attempt to work as usual, but there
+seems to ba a bug in this part of the code, so sometime some needed
+patches are not loaded.
+
+After some summary testing, looks like it’s fixed.
+
+Misc
+~~~~
+  * More error handling improvements.
+  * Bumped version number and cleaned things up for public release.
+  * Decreased maximum number of warnings per picture from 10 to 5.
+
+Platform
+~~~~~~~~
+Fixed `ftruncate()` being undeclared when compiling with DJGPP and
+updated the building-on-DOS section of the doc.
+
+4.2.2 (1999-11-20)
+------------------
+
+Misc
+~~~~
+Made certain failure messages more informative.
+
+Platform
+~~~~~~~~
+Fixed several bugs that showed in the DOS precompiled executables for
+4.1.0 and 4.2.0 (most common symptom: DeuTex aborting with a `Can't read
+WAD` error message).
+
+Lengthy technical explanation: in 4.1.0, I removed the `huge` pointer
+qualifiers that were scattered throughout the source not unlike nitrates
+in groundwater.  The reasoning was that, since DeuTex is always compiled
+in the `huge` memory model anyway, those qualifiers were redundant.  As
+I found out at the end of a long and painful debugging session, they
+weren’t.
+
+Had I read the doc of the compiler, I would have known that, even when
+in the huge memory model, pointers are `far` by default, not `huge`.
+Far pointers wrap around at 64 kB; this is not what you want when you’re
+trying to work with lumps larger than that.  And, apparently, there is
+no way to specify that pointers should be huge by default.
+
+On top of that, there was a genuine bug in `WADRreadBytes2()` that would
+have prevented the DOS port from working, even if all pointers had been
+huge.  But this one was fixed in 4.2.1.
+
+I switched to DJGPP, with which you can get working executables without
+having to contaminate your code with carcinogenic keywords.  The bad
+news: firstly, the executables are somewhat larger.  Secondly, since
+DJGPP executables use protected mode, they tend to be more fussy.
+
+Thanks to Kim Parrott for reporting the bug and alpha testing my fixes.
+
+All the above applies only to the DOS precompiled executables. Other
+platforms did not have these problems.
+
+4.2.1 (1999-11-16)
+------------------
+
+Command line
+~~~~~~~~~~~~
+Fixed segfault on `deutex --vers`.
+
+Graphics
+~~~~~~~~
+New option `-usedidx`.  When called with this option, DeuTex scans all
+the graphics in the wad and prints statistics about which palette
+indices they use.  (By “graphics” is meant “any data that is converted
+into an RGB triplet by looking up `PLAYPAL` or `TITLEPAL` ”.  That
+includes flats, graphics, patches, sneaps, sneats and sprites.)  I’ve
+added this command for my own use, to help my decide which index should
+be used to store the transparent colour for _Hexen_.
+
+Misc
+~~~~
+  * Made certain failure messages more informative.
+  * Made printing of lump names garbage-proof.
+
+Platform
+~~~~~~~~
+  * Fixed a huge DOS bug that made DeuTex fail with `Can't read WAD`
+    error whenever it had to read more than 65535 bytes from a wad at
+    once.
+  * Flushing `stdout` before writing to `stderr` so that messages come
+    out in the right order when both outputs are redirected.
+
+Sound
+~~~~~
+All conditions that used to be fatal errors when extracting sound lumps
+now just elicit a warning message, indicating which lump it was and what
+action was taken.
+
+4.2.0 (1999-11-14)
+------------------
+
+Doc
+~~~
+Fixed error in documentation of `-pkgfx`, `-pknormal` and `-usedtex`.
+
+_Strife_
+~~~~~~~~
+Fixed DeuTex aborting when extracting textures for versions of _Strife_
+≥ 1.1.  The problem was that _Strife_ 1.1 and above use a different
+format for the `TEXTURE1` and `TEXTURE2` lumps (_Strife_ 1.0 uses the
+same format as _Doom_).  New options `-tf strife11`, `-itf strife11` and
+`-otf strife11` to support that format.  Option `-strife` has been
+changed to imply `-tf strife11`.  New option `-strife10` that is
+identical to `-strife` except that it does not imply `-tf strife11`.
+Summary:
+
+  * If you have the Strife 1.0 iwad, use `-strife10` (or `-tf normal`).
+  * If you have Strife 1.1 or above, use `-strife` (or `-tf strife11`).
+
+Thanks to Kim Parrott for reporting the bug and Len Pitre for pointing
+me in the right direction.
+
+Sound
+~~~~~
+Fixed two bugs in reading Sun audio (`.au`) files.  Fixes error `WAV:
+can't read data of./sounds/foo.au` [sic] when trying to build a wad.
+One of these bugs prevented from reading Sun audio files on
+little-endian machines.  It had been there for a long time; v3.8 has it
+and the v3.6 binary behaves like it had it too.  I doubt that anyone had
+ever been able to use `.au` files on little-endian machines before.
+
+4.1.0 (1999-11-01)
+------------------
+
+Command line
+~~~~~~~~~~~~
+New options `-sneas`, `-sneaps` and `-sneats`.
+
+Code
+~~~~
+  * Replaced certain occurrences of `Int32` by `iolen_t`.
+  * Replaced certain occurrences of `256` by `NCOLOURS`.
+
+_Doom_ alpha 0.4
+~~~~~~~~~~~~~~~~
+`AMENA0` and `MSKUL*` are now correctly recognized as graphics and not
+as lumps anymore.  The 21 graphic lumps that ended up in `lumps/` are
+now properly extracted (into `sneaps/` and `sneats/`).  (The first item
+involved propagating to `IDENTgraphic()` the changes made to
+`PICtoRAW()` in v. 4.0.2.  The second item needed heavy hacking,
+creating a new image type (christened “snea”) and managing an alternate
+palette for `TITLEPAL`.)  Still extracted as lumps: `GNUM[0-9]` and
+`HUFONT`.
+
+_Doom_ alpha 0.5
+~~~~~~~~~~~~~~~~
+The 86 graphic lumps that ended up in `lumps/` are now properly
+extracted (into `sneaps/` and `sneats/`).  Still extracted as lump:
+`HUFONT`.
+
+Graphics
+~~~~~~~~
+Errors that used to cause DeuTex to give up on extracting a picture now
+just make it skip the rest of the column.  It also prints detailed
+messages about what it didn’t like and in which picture it occurred
+instead of bailing out silently.
+
+Misc
+~~~~
+  * New option `-di` to debug entry identification.  Useful mainly to
+    hackers.
+  * Cosmetic changes in the generated `wadinfo.txt` and in the phase
+    messages.
+  * No more messages `Creating PWAD` and `WAD is complete...` during
+    level extraction.
+  * Set a limit of 10 warnings per picture, to prevent invalid pictures
+    from uselessly flooding the output.
+
+4.0.3 (1999-10-02)
+------------------
+
+Command line
+~~~~~~~~~~~~
+New option `-doom2` as suggested by Matthew Miller.
+
+Graphics
+~~~~~~~~
+Now accepts to extract pictures as large as 4096×4096 (previously the
+limit was 320×200).  This fixes `Failed to write sprite` errors when
+trying to extract `PSYBA0` and `PSYBB0` from `strain.wad`.  Thanks to
+Matthew miller for reporting the bug.
+
+Misc
+~~~~
+Added a useful URL to the GIF warning.
+
+Platform
+~~~~~~~~
+Now builds without errors on FAT filesystems (replaced `.deutex` and
+`.deusf` by `tmp/_deutex` and `tmp/_deusf`).
+
+Sound
+~~~~~
+Fixed a bug that caused DeuTex to extract sounds with unlikely sample
+rates like 4 GHz whenever the sample rate in the lump was higher than
+32767 Hz (for example `DSVILACT` and `DSVILSIT` from `ncc1701.wad`, with
+a sample rate of 44.1 kHz).  Thanks to Matthew Miller for reporting
+the bug.
+
+4.0.2 (1999-09-19)
+------------------
+
+Command line
+~~~~~~~~~~~~
+New options
+
+  * `-doom02` (implies `-ipf alpha`, `-itf none`, and `-itl none`)
+  * `-doom04` (implies `-ipf alpha`, `-itf nameless`, and `-itl textures`)
+  * `-doom05` (implies `-ipf alpha` and `-itl textures`)
+  * `-doompr` (implies `ipf pr`)
+
+Code
+~~~~
+Replaced certain unjustified uses of `Int32` by `long`.
+
+Doc
+~~~
+Removed `old/readme.txt`.  It’s so out of date that it’s more confusing
+than useful.
+
+Game
+~~~~
+_Doom_ alpha and _Doom_ PR: it’s now possible to extract graphics, patches,
+sprites, and textures from those iwads.  Three new options:
+
+`-ipf {normal|pr|alpha}`::
+    Use `alpha` for _Doom_ alpha 0.2, 0.4, and 0.5. +
+    Use `pr` for _Doom_ PR (press release and beta). +
+    Use `normal` for everything else.
+
+`-itf {normal|nameless|none}`::
+    Use `none` for _Doom_ alpha 0.2. +
+    Use `nameless` for _Doom_ alpha 0.4. +
+    Use `normal` for everything else, including _Doom_ alpha 0.5.
+
+`-itl {normal|textures|none}`::
+    Use `none` for _Doom_ alpha 0.2. +
+    Use `textures` for _Doom_ alpha 0.4 and 0.5. +
+    Use `normal` for everything else, including _Doom_ alpha 0.5.
+
+You shouldn’t ever have to use those options directly.  It’s better to
+just use `-doom02`, `-doom04`, `-doom05`, and `-doompr`, which take care
+of setting ipf, itf, and itl properly for you.
+
+Note that extracting levels and some other lumps from the _Doom_ alpha
+iwads does not work yet.
+
+Platform
+~~~~~~~~
+New target in the makefile to generate a binary DOS distribution with
+the executables and the user documentation in DOS format, with DOS-ish
+names.
+
+4.0.1 (1999-09-10)
+------------------
+
+Command line
+~~~~~~~~~~~~
+Reworked the command line arguments parsing, with the following
+consequences.
+
+  * Options can now be abbreviated freely, as long as the abbreviation
+    is not ambiguous.  For example, you can use `-heretic`, `-hereti`,
+    `-heret`, `-here` or `-her` but not `-he` because that could also be
+    the abbreviation for `-help` (or `-hexen`, for that matter). On the
+    other hand, `-h` is allowed because it’s not an abbreviation
+    (there’s really a `-h` option).
+  * `-heretic` and `-hexen` now work (they were “hidden” by `-h[elp]`).
+  * `-v@` has been split in `-v0`, `-v1` ... `-v5` because the new code
+    does not allow excess characters after an option.  `-vstring` where
+    string is anything else than `0` through `5` now triggers an error
+    (it used to be accepted silently).  I hope no one relied on the old
+    undocumented behaviour.
+  * Certain silly command line arguments that would have worked before
+    would now trigger an error.  For example, it used to be possible to
+    type `-extramarital` or `-extermination` for `-extract` but not
+    anymore. The old code defined relatively short options (-ext) and
+    accepted command line arguments as long as the defined option was an
+    initial substring of the command line argument. The new code does
+    the reverse; it defines relatively long options (`-extract`) and
+    accepts command line argument as long as they’re an initial
+    substring of the defined option.
+
+Code
+~~~~
+  * Replaced direct testing of `__MSDOS__`, `__OS2__`, `__GNUC__`,
+    `__BORLANDC__` by `DT_CC` and `DT_OS`.  This is hopefully going to
+    make Udo’s job a bit easier.
+  * Now uses the same `fopen()` modes for all platforms: `{rw}b` for
+    binary mode and `{rw}` for text mode, as per the ANSI/ISO C
+    standard.  This will fix the problem Udo Munk reported with the
+    Cygwin build opening binary files in text mode and thus failing
+    miserably.  Note that certain DOS C compilers can be confused so
+    that `{rw}` opens files in _binary_ mode.  Don’t do that!  If you
+    have problems with text files on DOS, make sure your C compiler is
+    configured so that `{rw}` opens files in _text_ mode.
+  * Added to the distribution archive `gifcodec.c` that I had forgotten
+    to include (it’s not used anyway).
+  * Added to the distribution archive
+    `src/{deusf,deusfos,deutex,deutexos}.def` that I had forgotten to
+    include.  I guess that’s Windows/OS/2-only stuff.
+
+Doc
+~~~
+  * Updated `making.txt` and renamed it as `INSTALL` for homogeneity.
+    Removed obsolete reference to `alpha.sh` and the file itself.
+  * Made more legal updates.
+  * Documented `DOOMWADDIR` in the man page.
+
+Misc
+~~~~
+  * Changed the default graphics format for Unix from GIF to PPM, so
+    that fewer user sites are broken if and when GIF support is removed.
+    For the same reason, added a warning message when `-gif` is used or
+    the first time an image is read from a GIF file.
+  * Changed the lookup order for images to PPM, BMP, GIF (was BMP, GIF,
+    PPM).
+
+Platform
+~~~~~~~~
+  * Fixed a couple of things that didn’t work on 16-bit platforms
+    (real-mode DOS).
+  * Now compiles on DOS with Borland C++ 4.0.
+  * Now compiles on DOS with MSC 6.0. The MSC 6.0 build is functional
+    but limited because it can’t allocate blocks larger than 64 kB,
+    which is insufficient for certain images.  I can’t use `halloc()`
+    instead of `malloc()` because it does not supporting resizing
+    (i.e. there’s no `hrealloc()` function).
+  * In response to Udo’s remarks, DJGPP and Cygwin are now properly
+    identified (`__DJGPP__` and `__CYGWIN__`).
+  * Added sanity checks on specified-size types Int32 and friends.
+
+4.0.0a3 (1999-09-05)
+--------------------
+
+Code
+~~~~
+  * Removed incongruous `#define`-ing of `O_BINARY` and `SEEK_SET`.
+  * After Udo Munk’s report, fixed warnings in
+    ** `src/color.c(74)`
+    ** `src/ident.c(583)`
+    ** `src/ident.c(658)`
+    ** `src/mkwad.c(78)`
+    ** `src/mkwad.c(79)`
+    ** `src/mkwad.c(80)`
+    ** `src/mkwad.c(81)`
+    ** `src/picture.c(903)`
+    ** `src/picture.c(912)`
+
+Legal
+~~~~~
+As agreed to by Olivier Montanuy, DeuTex is now entirely GPL’d.  Well,
+_almost_ entirely, since it includes code written by different authors
+in `lzw.c` and elsewhere.  Changed the notices in the source files and
+added new file `LICENSE` to clarify things.
+
+Makefile
+~~~~~~~~
+  * Should now work with all C compilers (removed `-Wall` from
+    `CFLAGS`).
+  * `clean` now removes the DOS executables if they exist.
+  * Does not compile with debug information in by default anymore.
+  * New targets `dall`, `ddt`, `dds`, `ddeutex` and `ddeusf` for
+    compiling with debug information and all warnings.
+  * New target `help`.
+  * New target `distdos`.
+
+Platform
+~~~~~~~~
+  * Replaced `unlink()` by `remove()` for portability.  Thanks to Udo
+    for reporting this.
+  * On 8.3 filesystems, `make` should not choke on `docsrc/changes.html`
+    anymore.  Thanks to Udo for reporting this.
+
+Sound
+~~~~~
+Corrected some misleading endianness comments in `sound.c`.
+
+4.0.0a2 (1999-08-14)
+--------------------
+
+Game
+~~~~
+  * Easier to use with _Strife_ (now looks for `strife1.wad`, new option
+    `-strife` ).
+  * Easier to use with _Hexen_ (new option `-hexen`).
+
+Command line
+~~~~~~~~~~~~
+  * New options `-hexen` and `-strife`.
+  * New option `--version` (prints version number and returns 0).
+
+Doc
+~~~
+Various changes in the man page, in the output of `-help` and `-man` and
+elsewhere.
+
+Makefile
+~~~~~~~~
+Various improvements.
+
+Distribution
+~~~~~~~~~~~~
+Set modes straight.
+
+4.0.0a1 (1999-08-12)
+--------------------
+
+General
+~~~~~~~
+  * Fixed many segfaults that were caused by attempts to `fclose
+    (NULL)`.
+
+Wad
+~~~
+  * New options `-be`, `-le`, `-ibe`, `-ile`, `-obe`, and `-ole` to
+    control the endianness of the wads. *Caution*: don’t use them if
+    you don’t know what you’re doing!  As far as I know, wads are
+    always little-endian regardless of the architecture of the host.
+    Therefore, I see no reason for someone in his/her right mind to
+    create a big-endian wad.  Those options are here more for the sake
+    of completeness than anything else.
+  * Made `%` legal in names, to deal with _Strife_’s `INVFONG%` and
+    `INVFONY%`.
+  * _(Also graphics)_ End-of-flats marker is now `F_END` by default
+    instead of `FF_END`.  The reason for this change is that, with
+    `F_END`, you don’t need DeuSF to get _Doom_ to see your new flats.
+    Should you need to, it’s still possible to get `FF_END` by using
+    `-fend`.
+
+Graphics
+~~~~~~~~
+  * The default transparent colour is now a dark blue-green
+    (rgb:00/2f/2f).  It used to be cyan (rgb:00/ff/ff) which was
+    blindingly bright, especially compared to the usually dark colours
+    used in _Doom_ textures.  It’s no fun to tweak shades of dark brown
+    on a cyan background. +
+    +
+    To reuse images done with/for a previous version of DeuTex, you
+    need to either invoke DeuTex with `-rgb 0 255 255` or convert your
+    images by replacing all occurrences of colour (0, 255, 255) by
+    colour (0, 47, 47).  To preserve compatibility with WinTex, I
+    didn’t change the default transparent colour in WinTex mode; it’s
+    still (0, 255, 255).
+  * Fixed segfaults due to bug in conversion of bitmap images to _Doom_
+    pictures.  Occured in certain 2-pixel high images such as `STBFN045`
+    in the _Strife_ iwad.
+  * Now supports pictures and textures up to 509 high (was limited to
+    128).
+  * Now supports pictures and textures up to 1024 wide (was limited to
+    512).
+  * New option `-pf` to deal with the different picture format in the
+    _Doom_ alpha iwad (the underlying functionality is not implemented
+    yet!)
+  * Graphics: using `-ppm` does not cause anymore DeuTex to abort with
+    `Bug: *** psvit ***`.
+  * Graphics: fixed `-ppm` message.
+
+Sound
+~~~~~
+  * A bug that must have prevented reading `.wav` files on big endian
+    machines has been squashed.
+
+Command line
+~~~~~~~~~~~~
+  * Options can’t start with a slash (`/`) anymore. I don’t think
+    anyone used it and was a silly feature for a Unix program.
+  * Not case insensitive anymore.
+  * Changed the wording of error messages to use “option” instead of
+    “command”.
+  * Added options `-?` and `--help` as synonyms for `-help`.
+
+Doc
+~~~
+  * New option `-man` to print help in `troff -man` source format for
+    inclusion in the man page.
+  * The version number is now a free-form string.
+  * Made on-line help more compact.
+  * Updated `making.txt`.
+  * Made a proper `README` file.
+
+Makefile
+~~~~~~~~
+  * Renamed `unix` target as `strip`.
+  * New target `install`.
+  * New target `dist`.
+
+Platform
+~~~~~~~~
+Reworked the handling of endianness.  DeuTex used to deal with that
+through a set of macros that swapped bytes whenever the required
+endianness was not the same as the native endianness.  To known the
+native endianness, DeuTex relied on a macro defined via `-D`.
+
+There were two problems with this scheme.  Firstly, Olivier got the
+meaning of “little endian” and “big endian” backwards and defining
+`LITTLE_ENDIAN` in fact caused DeuTex to believe it was being compiled
+for a big endian machine.  As the glibc headers happen to define
+`LITTLE_ENDIAN` if the machine is little endian, compiling DeuTex on a
+glibc little endian Linux system was impossible unless you made changes
+to the source.
+
+The other, more fundamental, objection against the old approach is that,
+as it needed the user to tell it about the native endianness by
+modifying the makefile, it prevented unattended builds and made things
+difficult for naive users.
+
+The new method eliminates this problem by using a different algorithm
+that does not need to know the native endianness.  The end result is
+that you don’t have to worry about endianness anymore.
+
+Internal
+~~~~~~~~
+  * In `TXTinit()`, removed useless `% 0xFF` in index of `TXTval`.
diff --git a/README.adoc b/README.adoc
index a5b6884..9ecc95f 100644
--- a/README.adoc
+++ b/README.adoc
@@ -4,8 +4,34 @@ DeuTex
 DeuTex can do many things with _Doom_, _Freedoom_, _Heretic_, _Hexen_,
 and _Strife_ https://doomwiki.org/wiki/WAD[“WAD”] files, such as
 extracting and inserting graphics, sounds, levels, and other
-resources.  It can be used for creating and modifying IWAD and PWAD
-files both.
+resources.  It can be used for creating and modifying IWAD (“Internal
+WAD”) and PWAD (“Patch WAD”) files both.
+
+It is a command-line driven program and as such, is suitable for
+scripting such as from a shell script or Makefile.
+
+File formats
+------------
+
+For insertion and extraction, DeuTex supports a few common formats.
+
+For music, DeuTex supports both the DMX “mus” file format native to
+_Doom_, and also MIDI files supported in _Doom_ 1.666 and newer.
+There is no conversion between these formats, they are inserted and
+extracted as-is.
+
+For audio samples, they are saved and read using simple WAV files
+containing only uncompressed PCM audio streams.
+
+For the various forms of graphics, the BMP (uncompressed only), GIF,
+PPM, and PNG footnote:[Requires libpng 1.6 or newer.] formats are
+supported.
+
+Unrecognized-format lumps are saved with +.lmp+ extension in the
++lumps+ directory and are re-inserted as-is from there.  Levels are
+saved in an encapsulated PWAD file; breaking them apart would not be
+useful for editing and all the lumps that make up a level are
+co-dependent on each other.
 
 Building and installing
 -----------------------
@@ -23,15 +49,12 @@ first to generate the `./configure` file.
 
 To build and install the manpage, AsciiDoc must be installed, in
 particular the DocBook-based `a2x` command for transforming it into
-manpage format.  DeuTex will still build without it, however.
+manpage format.  DeuTex will still build without it, however, and the
+AsciiDoc source in +man/deutex.txt+ is fairly readable on its own.
 
 To build and install on ReactOS or Microsoft Windows will require an
-environment compatible with Unix shells and programs, such as Cygwin
-or MSYS2.
-
-Old versions of DeuTex ran on DOS and OS/2, but support has been
-removed with no current plans to restore them.  As DeuTex gains new
-features, old versions may not be usable with current build scripts.
+environment compatible with Unix shells and programs, such as
+https://cygwin.com/[Cygwin] or http://www.msys2.org/[MSYS2].
 
 History
 -------
@@ -39,9 +62,9 @@ History
 DeuTex began life as a fork of Doom Editing Utilities (known as DEU
 for short) by Olivier Montanuy in 1994, expunging the graphical user
 interface in favor of command line and scriptable usage scenarios.
-Originally written for DOS, its primary home is now Unix systems, and
-is a fundamental piece to building
-_https://freedoom.github.io/[Freedoom’s]_ playable WAD files.
+Originally written for DOS, its primary home is now modern Unix and
+Windows systems, and is a fundamental piece to building
+_https://freedoom.github.io/[Freedoom’s]_ IWAD files.
 
 The name comes from a play on LaTeX and in turn TeX, a popular
 typesetting system in academia but no technical connection to DeuTex.
diff --git a/aclocal.m4 b/aclocal.m4
deleted file mode 100644
index 2161831..0000000
--- a/aclocal.m4
+++ /dev/null
@@ -1,1428 +0,0 @@
-# generated automatically by aclocal 1.15.1 -*- Autoconf -*-
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-# PARTICULAR PURPOSE.
-
-m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
-m4_ifndef([AC_AUTOCONF_VERSION],
-  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
-[m4_warning([this file was generated for autoconf 2.69.
-You have another version of autoconf.  It may work, but is not guaranteed to.
-If you have problems, you may need to regenerate the build system entirely.
-To do so, use the procedure documented by the package, typically 'autoreconf'.])])
-
-# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
-# serial 12 (pkg-config-0.29.2)
-
-dnl Copyright © 2004 Scott James Remnant <scott at netsplit.com>.
-dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists at gmail.com>
-dnl
-dnl This program is free software; you can redistribute it and/or modify
-dnl it under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 2 of the License, or
-dnl (at your option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-dnl General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License
-dnl along with this program; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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-dnl
-dnl As a special exception to the GNU General Public License, if you
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-   for am_try in 1 2; do
-     echo "timestamp, slept: $am_has_slept" > conftest.file
-     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
-     if test "$[*]" = "X"; then
-	# -L didn't work.
-	set X `ls -t "$srcdir/configure" conftest.file`
-     fi
-     if test "$[*]" != "X $srcdir/configure conftest.file" \
-	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
-
-	# If neither matched, then we have a broken ls.  This can happen
-	# if, for instance, CONFIG_SHELL is bash and it inherits a
-	# broken ls alias from the environment.  This has actually
-	# happened.  Such a system could not be considered "sane".
-	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
-  alias in your environment])
-     fi
-     if test "$[2]" = conftest.file || test $am_try -eq 2; then
-       break
-     fi
-     # Just in case.
-     sleep 1
-     am_has_slept=yes
-   done
-   test "$[2]" = conftest.file
-   )
-then
-   # Ok.
-   :
-else
-   AC_MSG_ERROR([newly created file is older than distributed files!
-Check your system clock])
-fi
-AC_MSG_RESULT([yes])
-# If we didn't sleep, we still need to ensure time stamps of config.status and
-# generated files are strictly newer.
-am_sleep_pid=
-if grep 'slept: no' conftest.file >/dev/null 2>&1; then
-  ( sleep 1 ) &
-  am_sleep_pid=$!
-fi
-AC_CONFIG_COMMANDS_PRE(
-  [AC_MSG_CHECKING([that generated files are newer than configure])
-   if test -n "$am_sleep_pid"; then
-     # Hide warnings about reused PIDs.
-     wait $am_sleep_pid 2>/dev/null
-   fi
-   AC_MSG_RESULT([done])])
-rm -f conftest.file
-])
-
-# Copyright (C) 2009-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_SILENT_RULES([DEFAULT])
-# --------------------------
-# Enable less verbose build rules; with the default set to DEFAULT
-# ("yes" being less verbose, "no" or empty being verbose).
-AC_DEFUN([AM_SILENT_RULES],
-[AC_ARG_ENABLE([silent-rules], [dnl
-AS_HELP_STRING(
-  [--enable-silent-rules],
-  [less verbose build output (undo: "make V=1")])
-AS_HELP_STRING(
-  [--disable-silent-rules],
-  [verbose build output (undo: "make V=0")])dnl
-])
-case $enable_silent_rules in @%:@ (((
-  yes) AM_DEFAULT_VERBOSITY=0;;
-   no) AM_DEFAULT_VERBOSITY=1;;
-    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
-esac
-dnl
-dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
-dnl do not support nested variable expansions.
-dnl See automake bug#9928 and bug#10237.
-am_make=${MAKE-make}
-AC_CACHE_CHECK([whether $am_make supports nested variables],
-   [am_cv_make_support_nested_variables],
-   [if AS_ECHO([['TRUE=$(BAR$(V))
-BAR0=false
-BAR1=true
-V=1
-am__doit:
-	@$(TRUE)
-.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
-  am_cv_make_support_nested_variables=yes
-else
-  am_cv_make_support_nested_variables=no
-fi])
-if test $am_cv_make_support_nested_variables = yes; then
-  dnl Using '$V' instead of '$(V)' breaks IRIX make.
-  AM_V='$(V)'
-  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
-else
-  AM_V=$AM_DEFAULT_VERBOSITY
-  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
-fi
-AC_SUBST([AM_V])dnl
-AM_SUBST_NOTMAKE([AM_V])dnl
-AC_SUBST([AM_DEFAULT_V])dnl
-AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
-AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
-AM_BACKSLASH='\'
-AC_SUBST([AM_BACKSLASH])dnl
-_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
-])
-
-# Copyright (C) 2001-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# AM_PROG_INSTALL_STRIP
-# ---------------------
-# One issue with vendor 'install' (even GNU) is that you can't
-# specify the program used to strip binaries.  This is especially
-# annoying in cross-compiling environments, where the build's strip
-# is unlikely to handle the host's binaries.
-# Fortunately install-sh will honor a STRIPPROG variable, so we
-# always use install-sh in "make install-strip", and initialize
-# STRIPPROG with the value of the STRIP variable (set by the user).
-AC_DEFUN([AM_PROG_INSTALL_STRIP],
-[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
-# Installed binaries are usually stripped using 'strip' when the user
-# run "make install-strip".  However 'strip' might not be the right
-# tool to use in cross-compilation environments, therefore Automake
-# will honor the 'STRIP' environment variable to overrule this program.
-dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
-if test "$cross_compiling" != no; then
-  AC_CHECK_TOOL([STRIP], [strip], :)
-fi
-INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
-AC_SUBST([INSTALL_STRIP_PROGRAM])])
-
-# Copyright (C) 2006-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# _AM_SUBST_NOTMAKE(VARIABLE)
-# ---------------------------
-# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
-# This macro is traced by Automake.
-AC_DEFUN([_AM_SUBST_NOTMAKE])
-
-# AM_SUBST_NOTMAKE(VARIABLE)
-# --------------------------
-# Public sister of _AM_SUBST_NOTMAKE.
-AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
-
-# Check how to create a tarball.                            -*- Autoconf -*-
-
-# Copyright (C) 2004-2017 Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# _AM_PROG_TAR(FORMAT)
-# --------------------
-# Check how to create a tarball in format FORMAT.
-# FORMAT should be one of 'v7', 'ustar', or 'pax'.
-#
-# Substitute a variable $(am__tar) that is a command
-# writing to stdout a FORMAT-tarball containing the directory
-# $tardir.
-#     tardir=directory && $(am__tar) > result.tar
-#
-# Substitute a variable $(am__untar) that extract such
-# a tarball read from stdin.
-#     $(am__untar) < result.tar
-#
-AC_DEFUN([_AM_PROG_TAR],
-[# Always define AMTAR for backward compatibility.  Yes, it's still used
-# in the wild :-(  We should find a proper way to deprecate it ...
-AC_SUBST([AMTAR], ['$${TAR-tar}'])
-
-# We'll loop over all known methods to create a tar archive until one works.
-_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
-
-m4_if([$1], [v7],
-  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
-
-  [m4_case([$1],
-    [ustar],
-     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
-      # There is notably a 21 bits limit for the UID and the GID.  In fact,
-      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
-      # and bug#13588).
-      am_max_uid=2097151 # 2^21 - 1
-      am_max_gid=$am_max_uid
-      # The $UID and $GID variables are not portable, so we need to resort
-      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
-      # below are definitely unexpected, so allow the users to see them
-      # (that is, avoid stderr redirection).
-      am_uid=`id -u || echo unknown`
-      am_gid=`id -g || echo unknown`
-      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
-      if test $am_uid -le $am_max_uid; then
-         AC_MSG_RESULT([yes])
-      else
-         AC_MSG_RESULT([no])
-         _am_tools=none
-      fi
-      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
-      if test $am_gid -le $am_max_gid; then
-         AC_MSG_RESULT([yes])
-      else
-        AC_MSG_RESULT([no])
-        _am_tools=none
-      fi],
-
-  [pax],
-    [],
-
-  [m4_fatal([Unknown tar format])])
-
-  AC_MSG_CHECKING([how to create a $1 tar archive])
-
-  # Go ahead even if we have the value already cached.  We do so because we
-  # need to set the values for the 'am__tar' and 'am__untar' variables.
-  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
-
-  for _am_tool in $_am_tools; do
-    case $_am_tool in
-    gnutar)
-      for _am_tar in tar gnutar gtar; do
-        AM_RUN_LOG([$_am_tar --version]) && break
-      done
-      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
-      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
-      am__untar="$_am_tar -xf -"
-      ;;
-    plaintar)
-      # Must skip GNU tar: if it does not support --format= it doesn't create
-      # ustar tarball either.
-      (tar --version) >/dev/null 2>&1 && continue
-      am__tar='tar chf - "$$tardir"'
-      am__tar_='tar chf - "$tardir"'
-      am__untar='tar xf -'
-      ;;
-    pax)
-      am__tar='pax -L -x $1 -w "$$tardir"'
-      am__tar_='pax -L -x $1 -w "$tardir"'
-      am__untar='pax -r'
-      ;;
-    cpio)
-      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
-      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
-      am__untar='cpio -i -H $1 -d'
-      ;;
-    none)
-      am__tar=false
-      am__tar_=false
-      am__untar=false
-      ;;
-    esac
-
-    # If the value was cached, stop now.  We just wanted to have am__tar
-    # and am__untar set.
-    test -n "${am_cv_prog_tar_$1}" && break
-
-    # tar/untar a dummy directory, and stop if the command works.
-    rm -rf conftest.dir
-    mkdir conftest.dir
-    echo GrepMe > conftest.dir/file
-    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
-    rm -rf conftest.dir
-    if test -s conftest.tar; then
-      AM_RUN_LOG([$am__untar <conftest.tar])
-      AM_RUN_LOG([cat conftest.dir/file])
-      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
-    fi
-  done
-  rm -rf conftest.dir
-
-  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
-  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
-
-AC_SUBST([am__tar])
-AC_SUBST([am__untar])
-]) # _AM_PROG_TAR
-
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 0000000..7c590a3
--- /dev/null
+++ b/bootstrap
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+autoreconf -i
diff --git a/compile b/compile
deleted file mode 100755
index 2ab71e4..0000000
--- a/compile
+++ /dev/null
@@ -1,348 +0,0 @@
-#! /bin/sh
-# Wrapper for compilers which do not understand '-c -o'.
-
-scriptversion=2016-01-11.22; # UTC
-
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
-# Written by Tom Tromey <tromey at cygnus.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# This file is maintained in Automake, please report
-# bugs to <bug-automake at gnu.org> or send patches to
-# <automake-patches at gnu.org>.
-
-nl='
-'
-
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent tools from complaining about whitespace usage.
-IFS=" ""	$nl"
-
-file_conv=
-
-# func_file_conv build_file lazy
-# Convert a $build file to $host form and store it in $file
-# Currently only supports Windows hosts. If the determined conversion
-# type is listed in (the comma separated) LAZY, no conversion will
-# take place.
-func_file_conv ()
-{
-  file=$1
-  case $file in
-    / | /[!/]*) # absolute file, and not a UNC file
-      if test -z "$file_conv"; then
-	# lazily determine how to convert abs files
-	case `uname -s` in
-	  MINGW*)
-	    file_conv=mingw
-	    ;;
-	  CYGWIN*)
-	    file_conv=cygwin
-	    ;;
-	  *)
-	    file_conv=wine
-	    ;;
-	esac
-      fi
-      case $file_conv/,$2, in
-	*,$file_conv,*)
-	  ;;
-	mingw/*)
-	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
-	  ;;
-	cygwin/*)
-	  file=`cygpath -m "$file" || echo "$file"`
-	  ;;
-	wine/*)
-	  file=`winepath -w "$file" || echo "$file"`
-	  ;;
-      esac
-      ;;
-  esac
-}
-
-# func_cl_dashL linkdir
-# Make cl look for libraries in LINKDIR
-func_cl_dashL ()
-{
-  func_file_conv "$1"
-  if test -z "$lib_path"; then
-    lib_path=$file
-  else
-    lib_path="$lib_path;$file"
-  fi
-  linker_opts="$linker_opts -LIBPATH:$file"
-}
-
-# func_cl_dashl library
-# Do a library search-path lookup for cl
-func_cl_dashl ()
-{
-  lib=$1
-  found=no
-  save_IFS=$IFS
-  IFS=';'
-  for dir in $lib_path $LIB
-  do
-    IFS=$save_IFS
-    if $shared && test -f "$dir/$lib.dll.lib"; then
-      found=yes
-      lib=$dir/$lib.dll.lib
-      break
-    fi
-    if test -f "$dir/$lib.lib"; then
-      found=yes
-      lib=$dir/$lib.lib
-      break
-    fi
-    if test -f "$dir/lib$lib.a"; then
-      found=yes
-      lib=$dir/lib$lib.a
-      break
-    fi
-  done
-  IFS=$save_IFS
-
-  if test "$found" != yes; then
-    lib=$lib.lib
-  fi
-}
-
-# func_cl_wrapper cl arg...
-# Adjust compile command to suit cl
-func_cl_wrapper ()
-{
-  # Assume a capable shell
-  lib_path=
-  shared=:
-  linker_opts=
-  for arg
-  do
-    if test -n "$eat"; then
-      eat=
-    else
-      case $1 in
-	-o)
-	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
-	  eat=1
-	  case $2 in
-	    *.o | *.[oO][bB][jJ])
-	      func_file_conv "$2"
-	      set x "$@" -Fo"$file"
-	      shift
-	      ;;
-	    *)
-	      func_file_conv "$2"
-	      set x "$@" -Fe"$file"
-	      shift
-	      ;;
-	  esac
-	  ;;
-	-I)
-	  eat=1
-	  func_file_conv "$2" mingw
-	  set x "$@" -I"$file"
-	  shift
-	  ;;
-	-I*)
-	  func_file_conv "${1#-I}" mingw
-	  set x "$@" -I"$file"
-	  shift
-	  ;;
-	-l)
-	  eat=1
-	  func_cl_dashl "$2"
-	  set x "$@" "$lib"
-	  shift
-	  ;;
-	-l*)
-	  func_cl_dashl "${1#-l}"
-	  set x "$@" "$lib"
-	  shift
-	  ;;
-	-L)
-	  eat=1
-	  func_cl_dashL "$2"
-	  ;;
-	-L*)
-	  func_cl_dashL "${1#-L}"
-	  ;;
-	-static)
-	  shared=false
-	  ;;
-	-Wl,*)
-	  arg=${1#-Wl,}
-	  save_ifs="$IFS"; IFS=','
-	  for flag in $arg; do
-	    IFS="$save_ifs"
-	    linker_opts="$linker_opts $flag"
-	  done
-	  IFS="$save_ifs"
-	  ;;
-	-Xlinker)
-	  eat=1
-	  linker_opts="$linker_opts $2"
-	  ;;
-	-*)
-	  set x "$@" "$1"
-	  shift
-	  ;;
-	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
-	  func_file_conv "$1"
-	  set x "$@" -Tp"$file"
-	  shift
-	  ;;
-	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
-	  func_file_conv "$1" mingw
-	  set x "$@" "$file"
-	  shift
-	  ;;
-	*)
-	  set x "$@" "$1"
-	  shift
-	  ;;
-      esac
-    fi
-    shift
-  done
-  if test -n "$linker_opts"; then
-    linker_opts="-link$linker_opts"
-  fi
-  exec "$@" $linker_opts
-  exit 1
-}
-
-eat=
-
-case $1 in
-  '')
-     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
-     exit 1;
-     ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: compile [--help] [--version] PROGRAM [ARGS]
-
-Wrapper for compilers which do not understand '-c -o'.
-Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
-arguments, and rename the output as expected.
-
-If you are trying to build a whole package this is not the
-right script to run: please start by reading the file 'INSTALL'.
-
-Report bugs to <bug-automake at gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "compile $scriptversion"
-    exit $?
-    ;;
-  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
-  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
-    func_cl_wrapper "$@"      # Doesn't return...
-    ;;
-esac
-
-ofile=
-cfile=
-
-for arg
-do
-  if test -n "$eat"; then
-    eat=
-  else
-    case $1 in
-      -o)
-	# configure might choose to run compile as 'compile cc -o foo foo.c'.
-	# So we strip '-o arg' only if arg is an object.
-	eat=1
-	case $2 in
-	  *.o | *.obj)
-	    ofile=$2
-	    ;;
-	  *)
-	    set x "$@" -o "$2"
-	    shift
-	    ;;
-	esac
-	;;
-      *.c)
-	cfile=$1
-	set x "$@" "$1"
-	shift
-	;;
-      *)
-	set x "$@" "$1"
-	shift
-	;;
-    esac
-  fi
-  shift
-done
-
-if test -z "$ofile" || test -z "$cfile"; then
-  # If no '-o' option was seen then we might have been invoked from a
-  # pattern rule where we don't need one.  That is ok -- this is a
-  # normal compilation that the losing compiler can handle.  If no
-  # '.c' file was seen then we are probably linking.  That is also
-  # ok.
-  exec "$@"
-fi
-
-# Name of file we expect compiler to create.
-cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
-
-# Create the lock directory.
-# Note: use '[/\\:.-]' here to ensure that we don't use the same name
-# that we are using for the .o file.  Also, base the name on the expected
-# object file name, since that is what matters with a parallel build.
-lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
-while true; do
-  if mkdir "$lockdir" >/dev/null 2>&1; then
-    break
-  fi
-  sleep 1
-done
-# FIXME: race condition here if user kills between mkdir and trap.
-trap "rmdir '$lockdir'; exit 1" 1 2 15
-
-# Run the compile.
-"$@"
-ret=$?
-
-if test -f "$cofile"; then
-  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
-elif test -f "${cofile}bj"; then
-  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
-fi
-
-rmdir "$lockdir"
-exit $ret
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/config.h.in b/config.h.in
deleted file mode 100644
index 5bff100..0000000
--- a/config.h.in
+++ /dev/null
@@ -1,28 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* libpng installed */
-#undef HAVE_LIBPNG
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Version number of package */
-#undef VERSION
diff --git a/configure b/configure
deleted file mode 100755
index a82a4d8..0000000
--- a/configure
+++ /dev/null
@@ -1,5405 +0,0 @@
-#! /bin/sh
-# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for DeuTex 5.0.0.
-#
-# Report bugs to <https://github.com/Doom-Utils/deutex/issues>.
-#
-#
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
-#
-#
-# This configure script is free software; the Free Software Foundation
-# gives unlimited permission to copy, distribute and modify it.
-## -------------------- ##
-## M4sh Initialization. ##
-## -------------------- ##
-
-# Be more Bourne compatible
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-
-
-as_nl='
-'
-export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
-
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
-fi
-
-
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
-# Find who we are.  Look in the path if we contain no directory separator.
-as_myself=
-case $0 in #((
-  *[\\/]* ) as_myself=$0 ;;
-  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-  done
-IFS=$as_save_IFS
-
-     ;;
-esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
-# in which case we are not to be found in the path.
-if test "x$as_myself" = x; then
-  as_myself=$0
-fi
-if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  exit 1
-fi
-
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Use a proper internal environment variable to ensure we don't fall
-  # into an infinite loop, continuously re-executing ourselves.
-  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
-    _as_can_reexec=no; export _as_can_reexec;
-    # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
-# works around shells that cannot unset nonexistent variables.
-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
-  *v*x* | *x*v* ) as_opts=-vx ;;
-  *v* ) as_opts=-v ;;
-  *x* ) as_opts=-x ;;
-  * ) as_opts= ;;
-esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
-  fi
-  # We don't want this to propagate to other subprocesses.
-          { _as_can_reexec=; unset _as_can_reexec;}
-if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '\${1+\"\$@\"}'='\"\$@\"'
-  setopt NO_GLOB_SUBST
-else
-  case \`(set -o) 2>/dev/null\` in #(
-  *posix*) :
-    set -o posix ;; #(
-  *) :
-     ;;
-esac
-fi
-"
-  as_required="as_fn_return () { (exit \$1); }
-as_fn_success () { as_fn_return 0; }
-as_fn_failure () { as_fn_return 1; }
-as_fn_ret_success () { return 0; }
-as_fn_ret_failure () { return 1; }
-
-exitcode=0
-as_fn_success || { exitcode=1; echo as_fn_success failed.; }
-as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
-as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
-as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
-
-else
-  exitcode=1; echo positional parameters were not saved.
-fi
-test x\$exitcode = x0 || exit 1
-test -x / || exit 1"
-  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
-  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
-  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
-  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
-  as_have_required=yes
-else
-  as_have_required=no
-fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
-
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-as_found=false
-for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  as_found=:
-  case $as_dir in #(
-	 /*)
-	   for as_base in sh bash ksh sh5; do
-	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
-	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
-  break 2
-fi
-fi
-	   done;;
-       esac
-  as_found=false
-done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
-IFS=$as_save_IFS
-
-
-      if test "x$CONFIG_SHELL" != x; then :
-  export CONFIG_SHELL
-             # We cannot yet assume a decent shell, so we have to provide a
-# neutralization value for shells without unset; and this also
-# works around shells that cannot unset nonexistent variables.
-# Preserve -v and -x to the replacement shell.
-BASH_ENV=/dev/null
-ENV=/dev/null
-(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-case $- in # ((((
-  *v*x* | *x*v* ) as_opts=-vx ;;
-  *v* ) as_opts=-v ;;
-  *x* ) as_opts=-x ;;
-  * ) as_opts= ;;
-esac
-exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
-# Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-exit 255
-fi
-
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
-  else
-    $as_echo "$0: Please tell bug-autoconf at gnu.org and
-$0: https://github.com/Doom-Utils/deutex/issues about your
-$0: system, including any error possibly output before this
-$0: message. Then install a modern shell, or manually run
-$0: the script under such a shell if you do have one."
-  fi
-  exit 1
-fi
-fi
-fi
-SHELL=${CONFIG_SHELL-/bin/sh}
-export SHELL
-# Unset more variables known to interfere with behavior of common tools.
-CLICOLOR_FORCE= GREP_OPTIONS=
-unset CLICOLOR_FORCE GREP_OPTIONS
-
-## --------------------- ##
-## M4sh Shell Functions. ##
-## --------------------- ##
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
-as_fn_unset ()
-{
-  { eval $1=; unset $1;}
-}
-as_unset=as_fn_unset
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-
-# as_fn_mkdir_p
-# -------------
-# Create "$as_dir" as a directory, including parents if necessary.
-as_fn_mkdir_p ()
-{
-
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || eval $as_mkdir_p || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
-
-
-} # as_fn_mkdir_p
-
-# as_fn_executable_p FILE
-# -----------------------
-# Test if FILE is an executable regular file.
-as_fn_executable_p ()
-{
-  test -f "$1" && test -x "$1"
-} # as_fn_executable_p
-# as_fn_append VAR VALUE
-# ----------------------
-# Append the text in VALUE to the end of the definition contained in VAR. Take
-# advantage of any shell optimizations that allow amortized linear growth over
-# repeated appends, instead of the typical quadratic growth present in naive
-# implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
-  eval 'as_fn_append ()
-  {
-    eval $1+=\$2
-  }'
-else
-  as_fn_append ()
-  {
-    eval $1=\$$1\$2
-  }
-fi # as_fn_append
-
-# as_fn_arith ARG...
-# ------------------
-# Perform arithmetic evaluation on the ARGs, and store the result in the
-# global $as_val. Take advantage of shells that can avoid forks. The arguments
-# must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
-  eval 'as_fn_arith ()
-  {
-    as_val=$(( $* ))
-  }'
-else
-  as_fn_arith ()
-  {
-    as_val=`expr "$@" || test $? -eq 1`
-  }
-fi # as_fn_arith
-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
-# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
-# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with STATUS, using 1 if that was 0.
-as_fn_error ()
-{
-  as_status=$1; test $as_status -eq 0 && as_status=1
-  if test "$4"; then
-    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
-  fi
-  $as_echo "$as_me: error: $2" >&2
-  as_fn_exit $as_status
-} # as_fn_error
-
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
-
-  as_lineno_1=$LINENO as_lineno_1a=$LINENO
-  as_lineno_2=$LINENO as_lineno_2a=$LINENO
-  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
-  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
-  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
-  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
-  # already done that, so ensure we don't try to do so again and fall
-  # in an infinite loop.  This has already happened in practice.
-  _as_can_reexec=no; export _as_can_reexec
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in #(((((
--n*)
-  case `echo 'xy\c'` in
-  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  xy)  ECHO_C='\c';;
-  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
-       ECHO_T='	';;
-  esac;;
-*)
-  ECHO_N='-n';;
-esac
-
-rm -f conf$$ conf$$.exe conf$$.file
-if test -d conf$$.dir; then
-  rm -f conf$$.dir/conf$$.file
-else
-  rm -f conf$$.dir
-  mkdir conf$$.dir 2>/dev/null
-fi
-if (echo >conf$$.file) 2>/dev/null; then
-  if ln -s conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s='ln -s'
-    # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
-    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -pR'
-  elif ln conf$$.file conf$$ 2>/dev/null; then
-    as_ln_s=ln
-  else
-    as_ln_s='cp -pR'
-  fi
-else
-  as_ln_s='cp -pR'
-fi
-rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
-rmdir conf$$.dir 2>/dev/null
-
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p='mkdir -p "$as_dir"'
-else
-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-as_test_x='test -x'
-as_executable_p=as_fn_executable_p
-
-# Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
-
-# Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
-
-
-test -n "$DJDIR" || exec 7<&0 </dev/null
-exec 6>&1
-
-# Name of the host.
-# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
-# so uname gets run too.
-ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
-
-#
-# Initializations.
-#
-ac_default_prefix=/usr/local
-ac_clean_files=
-ac_config_libobj_dir=.
-LIBOBJS=
-cross_compiling=no
-subdirs=
-MFLAGS=
-MAKEFLAGS=
-
-# Identity of this package.
-PACKAGE_NAME='DeuTex'
-PACKAGE_TARNAME='deutex'
-PACKAGE_VERSION='5.0.0'
-PACKAGE_STRING='DeuTex 5.0.0'
-PACKAGE_BUGREPORT='https://github.com/Doom-Utils/deutex/issues'
-PACKAGE_URL=''
-
-ac_subst_vars='am__EXEEXT_FALSE
-am__EXEEXT_TRUE
-LTLIBOBJS
-LIBOBJS
-PNG_LIBS
-PNG_CFLAGS
-PKG_CONFIG_LIBDIR
-PKG_CONFIG_PATH
-PKG_CONFIG
-ASCIIDOC_FALSE
-ASCIIDOC_TRUE
-ASCIIDOC
-am__fastdepCC_FALSE
-am__fastdepCC_TRUE
-CCDEPMODE
-am__nodep
-AMDEPBACKSLASH
-AMDEP_FALSE
-AMDEP_TRUE
-am__quote
-am__include
-DEPDIR
-OBJEXT
-EXEEXT
-ac_ct_CC
-CPPFLAGS
-LDFLAGS
-CFLAGS
-CC
-AM_BACKSLASH
-AM_DEFAULT_VERBOSITY
-AM_DEFAULT_V
-AM_V
-am__untar
-am__tar
-AMTAR
-am__leading_dot
-SET_MAKE
-AWK
-mkdir_p
-MKDIR_P
-INSTALL_STRIP_PROGRAM
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-  ac_cv_prog_cc_c99=no
-ac_save_CC=$CC
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <wchar.h>
-#include <stdio.h>
-
-// Check varargs macros.  These examples are taken from C99 6.10.3.5.
-#define debug(...) fprintf (stderr, __VA_ARGS__)
-#define showlist(...) puts (#__VA_ARGS__)
-#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
-static void
-test_varargs_macros (void)
-{
-  int x = 1234;
-  int y = 5678;
-  debug ("Flag");
-  debug ("X = %d\n", x);
-  showlist (The first, second, and third items.);
-  report (x>y, "x is %d but y is %d", x, y);
-}
-
-// Check long long types.
-#define BIG64 18446744073709551615ull
-#define BIG32 4294967295ul
-#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
-#if !BIG_OK
-  your preprocessor is broken;
-#endif
-#if BIG_OK
-#else
-  your preprocessor is broken;
-#endif
-static long long int bignum = -9223372036854775807LL;
-static unsigned long long int ubignum = BIG64;
-
-struct incomplete_array
-{
-  int datasize;
-  double data[];
-};
-
-struct named_init {
-  int number;
-  const wchar_t *name;
-  double average;
-};
-
-typedef const char *ccp;
-
-static inline int
-test_restrict (ccp restrict text)
-{
-  // See if C++-style comments work.
-  // Iterate through items via the restricted pointer.
-  // Also check for declarations in for loops.
-  for (unsigned int i = 0; *(text+i) != '\0'; ++i)
-    continue;
-  return 0;
-}
-
-// Check varargs and va_copy.
-static void
-test_varargs (const char *format, ...)
-{
-  va_list args;
-  va_start (args, format);
-  va_list args_copy;
-  va_copy (args_copy, args);
-
-  const char *str;
-  int number;
-  float fnumber;
-
-  while (*format)
-    {
-      switch (*format++)
-	{
-	case 's': // string
-	  str = va_arg (args_copy, const char *);
-	  break;
-	case 'd': // int
-	  number = va_arg (args_copy, int);
-	  break;
-	case 'f': // float
-	  fnumber = va_arg (args_copy, double);
-	  break;
-	default:
-	  break;
-	}
-    }
-  va_end (args_copy);
-  va_end (args);
-}
-
-int
-main ()
-{
-
-  // Check bool.
-  _Bool success = false;
-
-  // Check restrict.
-  if (test_restrict ("String literal") == 0)
-    success = true;
-  char *restrict newvar = "Another string";
-
-  // Check varargs.
-  test_varargs ("s, d' f .", "string", 65, 34.234);
-  test_varargs_macros ();
-
-  // Check flexible array members.
-  struct incomplete_array *ia =
-    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
-  ia->datasize = 10;
-  for (int i = 0; i < ia->datasize; ++i)
-    ia->data[i] = i * 1.234;
-
-  // Check named initializers.
-  struct named_init ni = {
-    .number = 34,
-    .name = L"Test wide string",
-    .average = 543.34343,
-  };
-
-  ni.number = 58;
-
-  int dynamic_array[ni.number];
-  dynamic_array[ni.number - 1] = 543;
-
-  // work around unused variable warnings
-  return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
-	  || dynamic_array[ni.number - 1] != 543);
-
-  ;
-  return 0;
-}
-_ACEOF
-for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99
-do
-  CC="$ac_save_CC $ac_arg"
-  if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_prog_cc_c99=$ac_arg
-fi
-rm -f core conftest.err conftest.$ac_objext
-  test "x$ac_cv_prog_cc_c99" != "xno" && break
-done
-rm -f conftest.$ac_ext
-CC=$ac_save_CC
-
-fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c99" in
-  x)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
-  *)
-    CC="$CC $ac_cv_prog_cc_c99"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
-$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
-esac
-if test "x$ac_cv_prog_cc_c99" != xno; then :
-
-fi
-
-
-
-# Check whether --enable-silent-rules was given.
-if test "${enable_silent_rules+set}" = set; then :
-  enableval=$enable_silent_rules;
-fi
-
-case $enable_silent_rules in # (((
-  yes) AM_DEFAULT_VERBOSITY=0;;
-   no) AM_DEFAULT_VERBOSITY=1;;
-    *) AM_DEFAULT_VERBOSITY=0;;
-esac
-am_make=${MAKE-make}
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
-$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
-if ${am_cv_make_support_nested_variables+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if $as_echo 'TRUE=$(BAR$(V))
-BAR0=false
-BAR1=true
-V=1
-am__doit:
-	@$(TRUE)
-.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
-  am_cv_make_support_nested_variables=yes
-else
-  am_cv_make_support_nested_variables=no
-fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
-$as_echo "$am_cv_make_support_nested_variables" >&6; }
-if test $am_cv_make_support_nested_variables = yes; then
-    AM_V='$(V)'
-  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
-else
-  AM_V=$AM_DEFAULT_VERBOSITY
-  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
-fi
-AM_BACKSLASH='\'
-
-
-# Extract the first word of "a2x", so it can be a program name with args.
-set dummy a2x; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ASCIIDOC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ASCIIDOC"; then
-  ac_cv_prog_ASCIIDOC="$ASCIIDOC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ASCIIDOC="yes"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ASCIIDOC=$ac_cv_prog_ASCIIDOC
-if test -n "$ASCIIDOC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ASCIIDOC" >&5
-$as_echo "$ASCIIDOC" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- if test "$ASCIIDOC" = yes; then
-  ASCIIDOC_TRUE=
-  ASCIIDOC_FALSE='#'
-else
-  ASCIIDOC_TRUE='#'
-  ASCIIDOC_FALSE=
-fi
-
-
-
-# Check whether --with-libpng was given.
-if test "${with_libpng+set}" = set; then :
-  withval=$with_libpng;
-else
-  with_libpng=check
-fi
-
-
-
-
-
-
-
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
-	if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
-set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_PKG_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $PKG_CONFIG in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-  ;;
-esac
-fi
-PKG_CONFIG=$ac_cv_path_PKG_CONFIG
-if test -n "$PKG_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
-$as_echo "$PKG_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_path_PKG_CONFIG"; then
-  ac_pt_PKG_CONFIG=$PKG_CONFIG
-  # Extract the first word of "pkg-config", so it can be a program name with args.
-set dummy pkg-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $ac_pt_PKG_CONFIG in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-  ;;
-esac
-fi
-ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
-if test -n "$ac_pt_PKG_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
-$as_echo "$ac_pt_PKG_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_pt_PKG_CONFIG" = x; then
-    PKG_CONFIG=""
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    PKG_CONFIG=$ac_pt_PKG_CONFIG
-  fi
-else
-  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
-fi
-
-fi
-if test -n "$PKG_CONFIG"; then
-	_pkg_min_version=0.9.0
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
-$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
-	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-	else
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-		PKG_CONFIG=""
-	fi
-fi
-if test "$with_libpng" != no; then :
-
-pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libpng >= 1.6.0" >&5
-$as_echo_n "checking for libpng >= 1.6.0... " >&6; }
-
-if test -n "$PNG_CFLAGS"; then
-    pkg_cv_PNG_CFLAGS="$PNG_CFLAGS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpng >= 1.6.0\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libpng >= 1.6.0") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-  pkg_cv_PNG_CFLAGS=`$PKG_CONFIG --cflags "libpng >= 1.6.0" 2>/dev/null`
-		      test "x$?" != "x0" && pkg_failed=yes
-else
-  pkg_failed=yes
-fi
- else
-    pkg_failed=untried
-fi
-if test -n "$PNG_LIBS"; then
-    pkg_cv_PNG_LIBS="$PNG_LIBS"
- elif test -n "$PKG_CONFIG"; then
-    if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpng >= 1.6.0\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libpng >= 1.6.0") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-  pkg_cv_PNG_LIBS=`$PKG_CONFIG --libs "libpng >= 1.6.0" 2>/dev/null`
-		      test "x$?" != "x0" && pkg_failed=yes
-else
-  pkg_failed=yes
-fi
- else
-    pkg_failed=untried
-fi
-
-
-
-if test $pkg_failed = yes; then
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
-        _pkg_short_errors_supported=yes
-else
-        _pkg_short_errors_supported=no
-fi
-        if test $_pkg_short_errors_supported = yes; then
-	        PNG_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libpng >= 1.6.0" 2>&1`
-        else
-	        PNG_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libpng >= 1.6.0" 2>&1`
-        fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$PNG_PKG_ERRORS" >&5
-
-	if test "$with_libpng" != check; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "--with-libpng was given, but test for libpng failed
-See \`config.log' for more details" "$LINENO" 5; }
-
-fi
-elif test $pkg_failed = untried; then
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-	if test "$with_libpng" != check; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "--with-libpng was given, but test for libpng failed
-See \`config.log' for more details" "$LINENO" 5; }
-
-fi
-else
-	PNG_CFLAGS=$pkg_cv_PNG_CFLAGS
-	PNG_LIBS=$pkg_cv_PNG_LIBS
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-$as_echo "#define HAVE_LIBPNG 1" >>confdefs.h
-
-fi
-fi
-
-ac_config_headers="$ac_config_headers config.h"
-
-ac_config_files="$ac_config_files Makefile man/Makefile man/deutex.txt pkg.w32/config.make src/Makefile"
-
-cat >confcache <<\_ACEOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs, see configure's option --config-cache.
-# It is not useful on other systems.  If it contains results you don't
-# want to keep, you may remove or edit it.
-#
-# config.status only pays attention to the cache file if you give it
-# the --recheck option to rerun configure.
-#
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
-# following values.
-
-_ACEOF
-
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, we kill variables containing newlines.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(
-  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
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-      case $ac_var in #(
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-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
-      esac
-      case $ac_var in #(
-      _ | IFS | as_nl) ;; #(
-      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) { eval $ac_var=; unset $ac_var;} ;;
-      esac ;;
-    esac
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-
-  (set) 2>&1 |
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-      # `set' does not quote correctly, so add quotes: double-quote
-      # substitution turns \\\\ into \\, and sed turns \\ into \.
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-      ;; #(
-    *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
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-    esac |
-    sort
-) |
-  sed '
-     /^ac_cv_env_/b end
-     t clear
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-     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
-     t end
-     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
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-if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
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-      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-$as_echo "$as_me: updating cache $cache_file" >&6;}
-      if test ! -f "$cache_file" || test -h "$cache_file"; then
-	cat confcache >"$cache_file"
-      else
-        case $cache_file in #(
-        */* | ?:*)
-	  mv -f confcache "$cache_file"$$ &&
-	  mv -f "$cache_file"$$ "$cache_file" ;; #(
-        *)
-	  mv -f confcache "$cache_file" ;;
-	esac
-      fi
-    fi
-  else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
-  fi
-fi
-rm -f confcache
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-DEFS=-DHAVE_CONFIG_H
-
-ac_libobjs=
-ac_ltlibobjs=
-U=
-for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
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-  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
-  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
-done
-LIBOBJS=$ac_libobjs
-
-LTLIBOBJS=$ac_ltlibobjs
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
-$as_echo_n "checking that generated files are newer than configure... " >&6; }
-   if test -n "$am_sleep_pid"; then
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-   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
-$as_echo "done" >&6; }
- if test -n "$EXEEXT"; then
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-else
-  am__EXEEXT_TRUE='#'
-  am__EXEEXT_FALSE=
-fi
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-if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
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-  as_fn_error $? "conditional \"ASCIIDOC\" was never defined.
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-
-: "${CONFIG_STATUS=./config.status}"
-ac_write_fail=0
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-
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-ac_cs_silent=false
-
-SHELL=\${CONFIG_SHELL-$SHELL}
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-cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
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-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
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-LANGUAGE=C
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-
-# CDPATH.
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-
-
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
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-
-# as_fn_set_status STATUS
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-{
-  return $1
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-# as_fn_exit STATUS
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-{
-  set +e
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-{
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-as_me=`$as_basename -- "$0" ||
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-	  /^X\/\(\/\/\)$/{
-	    s//\1/
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-# Avoid depending upon Character Ranges.
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-
-# as_fn_mkdir_p
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-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
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-	  /^X\(\/\/\)$/{
-	    s//\1/
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-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
-
-
-} # as_fn_mkdir_p
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p='mkdir -p "$as_dir"'
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-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-
-# as_fn_executable_p FILE
-# -----------------------
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-as_fn_executable_p ()
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-# Sed expression to map a string onto a valid variable name.
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-exec 6>&1
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-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$mf" : 'X\(//\)[^/]' \| \
-	 X"$mf" : 'X\(//\)$' \| \
-	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$mf" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`$as_dirname -- "$file" ||
-$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$file" : 'X\(//\)[^/]' \| \
-	 X"$file" : 'X\(//\)$' \| \
-	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
-  done
-}
- ;;
-
-  esac
-done # for ac_tag
-
-
-as_fn_exit 0
-_ACEOF
-ac_clean_files=$ac_clean_files_save
-
-test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
-
-
-# configure is writing to config.log, and then calls config.status.
-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
-# appended to by config.status.  When coming back to configure, we
-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
-  ac_config_status_args=
-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
-  exec 5>/dev/null
-  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
-  exec 5>>config.log
-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
-  # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
-fi
-if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
-fi
-
diff --git a/configure.ac b/configure.ac
index af36026..f866edd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([DeuTex], [5.0.0], [https://github.com/Doom-Utils/deutex/issues])
+AC_INIT([DeuTex], [5.1.0], [https://github.com/Doom-Utils/deutex/issues])
 AC_PACKAGE_URL([https://github.com/Doom-Utils/deutex])
 AM_INIT_AUTOMAKE([foreign])
 AC_PROG_CC
diff --git a/depcomp b/depcomp
deleted file mode 100755
index b39f98f..0000000
--- a/depcomp
+++ /dev/null
@@ -1,791 +0,0 @@
-#! /bin/sh
-# depcomp - compile a program generating dependencies as side-effects
-
-scriptversion=2016-01-11.22; # UTC
-
-# Copyright (C) 1999-2017 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Originally written by Alexandre Oliva <oliva at dcc.unicamp.br>.
-
-case $1 in
-  '')
-    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
-    exit 1;
-    ;;
-  -h | --h*)
-    cat <<\EOF
-Usage: depcomp [--help] [--version] PROGRAM [ARGS]
-
-Run PROGRAMS ARGS to compile a file, generating dependencies
-as side-effects.
-
-Environment variables:
-  depmode     Dependency tracking mode.
-  source      Source file read by 'PROGRAMS ARGS'.
-  object      Object file output by 'PROGRAMS ARGS'.
-  DEPDIR      directory where to store dependencies.
-  depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputting dependencies.
-  libtool     Whether libtool is used (yes/no).
-
-Report bugs to <bug-automake at gnu.org>.
-EOF
-    exit $?
-    ;;
-  -v | --v*)
-    echo "depcomp $scriptversion"
-    exit $?
-    ;;
-esac
-
-# Get the directory component of the given path, and save it in the
-# global variables '$dir'.  Note that this directory component will
-# be either empty or ending with a '/' character.  This is deliberate.
-set_dir_from ()
-{
-  case $1 in
-    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
-      *) dir=;;
-  esac
-}
-
-# Get the suffix-stripped basename of the given path, and save it the
-# global variable '$base'.
-set_base_from ()
-{
-  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
-}
-
-# If no dependency file was actually created by the compiler invocation,
-# we still have to create a dummy depfile, to avoid errors with the
-# Makefile "include basename.Plo" scheme.
-make_dummy_depfile ()
-{
-  echo "#dummy" > "$depfile"
-}
-
-# Factor out some common post-processing of the generated depfile.
-# Requires the auxiliary global variable '$tmpdepfile' to be set.
-aix_post_process_depfile ()
-{
-  # If the compiler actually managed to produce a dependency file,
-  # post-process it.
-  if test -f "$tmpdepfile"; then
-    # Each line is of the form 'foo.o: dependency.h'.
-    # Do two passes, one to just change these to
-    #   $object: dependency.h
-    # and one to simply output
-    #   dependency.h:
-    # which is needed to avoid the deleted-header problem.
-    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
-      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
-    } > "$depfile"
-    rm -f "$tmpdepfile"
-  else
-    make_dummy_depfile
-  fi
-}
-
-# A tabulation character.
-tab='	'
-# A newline character.
-nl='
-'
-# Character ranges might be problematic outside the C locale.
-# These definitions help.
-upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
-lower=abcdefghijklmnopqrstuvwxyz
-digits=0123456789
-alpha=${upper}${lower}
-
-if test -z "$depmode" || test -z "$source" || test -z "$object"; then
-  echo "depcomp: Variables source, object and depmode must be set" 1>&2
-  exit 1
-fi
-
-# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
-depfile=${depfile-`echo "$object" |
-  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
-tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
-
-rm -f "$tmpdepfile"
-
-# Avoid interferences from the environment.
-gccflag= dashmflag=
-
-# Some modes work just like other modes, but use different flags.  We
-# parameterize here, but still list the modes in the big case below,
-# to make depend.m4 easier to write.  Note that we *cannot* use a case
-# here, because this file can only contain one case statement.
-if test "$depmode" = hp; then
-  # HP compiler uses -M and no extra arg.
-  gccflag=-M
-  depmode=gcc
-fi
-
-if test "$depmode" = dashXmstdout; then
-  # This is just like dashmstdout with a different argument.
-  dashmflag=-xM
-  depmode=dashmstdout
-fi
-
-cygpath_u="cygpath -u -f -"
-if test "$depmode" = msvcmsys; then
-  # This is just like msvisualcpp but w/o cygpath translation.
-  # Just convert the backslash-escaped backslashes to single forward
-  # slashes to satisfy depend.m4
-  cygpath_u='sed s,\\\\,/,g'
-  depmode=msvisualcpp
-fi
-
-if test "$depmode" = msvc7msys; then
-  # This is just like msvc7 but w/o cygpath translation.
-  # Just convert the backslash-escaped backslashes to single forward
-  # slashes to satisfy depend.m4
-  cygpath_u='sed s,\\\\,/,g'
-  depmode=msvc7
-fi
-
-if test "$depmode" = xlc; then
-  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
-  gccflag=-qmakedep=gcc,-MF
-  depmode=gcc
-fi
-
-case "$depmode" in
-gcc3)
-## gcc 3 implements dependency tracking that does exactly what
-## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
-## it if -MD -MP comes after the -MF stuff.  Hmm.
-## Unfortunately, FreeBSD c89 acceptance of flags depends upon
-## the command line argument order; so add the flags where they
-## appear in depend2.am.  Note that the slowdown incurred here
-## affects only configure: in makefiles, %FASTDEP% shortcuts this.
-  for arg
-  do
-    case $arg in
-    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
-    *)  set fnord "$@" "$arg" ;;
-    esac
-    shift # fnord
-    shift # $arg
-  done
-  "$@"
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  mv "$tmpdepfile" "$depfile"
-  ;;
-
-gcc)
-## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
-## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
-## (see the conditional assignment to $gccflag above).
-## There are various ways to get dependency output from gcc.  Here's
-## why we pick this rather obscure method:
-## - Don't want to use -MD because we'd like the dependencies to end
-##   up in a subdir.  Having to rename by hand is ugly.
-##   (We might end up doing this anyway to support other compilers.)
-## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
-##   -MM, not -M (despite what the docs say).  Also, it might not be
-##   supported by the other compilers which use the 'gcc' depmode.
-## - Using -M directly means running the compiler twice (even worse
-##   than renaming).
-  if test -z "$gccflag"; then
-    gccflag=-MD,
-  fi
-  "$@" -Wp,"$gccflag$tmpdepfile"
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  # The second -e expression handles DOS-style file names with drive
-  # letters.
-  sed -e 's/^[^:]*: / /' \
-      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
-## This next piece of magic avoids the "deleted header file" problem.
-## The problem is that when a header file which appears in a .P file
-## is deleted, the dependency causes make to die (because there is
-## typically no way to rebuild the header).  We avoid this by adding
-## dummy dependencies for each header file.  Too bad gcc doesn't do
-## this for us directly.
-## Some versions of gcc put a space before the ':'.  On the theory
-## that the space means something, we add a space to the output as
-## well.  hp depmode also adds that space, but also prefixes the VPATH
-## to the object.  Take care to not repeat it in the output.
-## Some versions of the HPUX 10.20 sed can't process this invocation
-## correctly.  Breaking it into two sed invocations is a workaround.
-  tr ' ' "$nl" < "$tmpdepfile" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-sgi)
-  if test "$libtool" = yes; then
-    "$@" "-Wp,-MDupdate,$tmpdepfile"
-  else
-    "$@" -MDupdate "$tmpdepfile"
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-
-  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
-    echo "$object : \\" > "$depfile"
-    # Clip off the initial element (the dependent).  Don't try to be
-    # clever and replace this with sed code, as IRIX sed won't handle
-    # lines with more than a fixed number of characters (4096 in
-    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
-    # the IRIX cc adds comments like '#:fec' to the end of the
-    # dependency line.
-    tr ' ' "$nl" < "$tmpdepfile" \
-      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
-      | tr "$nl" ' ' >> "$depfile"
-    echo >> "$depfile"
-    # The second pass generates a dummy entry for each header file.
-    tr ' ' "$nl" < "$tmpdepfile" \
-      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
-      >> "$depfile"
-  else
-    make_dummy_depfile
-  fi
-  rm -f "$tmpdepfile"
-  ;;
-
-xlc)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-aix)
-  # The C for AIX Compiler uses -M and outputs the dependencies
-  # in a .u file.  In older versions, this file always lives in the
-  # current directory.  Also, the AIX compiler puts '$object:' at the
-  # start of each line; $object doesn't have directory information.
-  # Version 6 uses the directory in both cases.
-  set_dir_from "$object"
-  set_base_from "$object"
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$base.u
-    tmpdepfile3=$dir.libs/$base.u
-    "$@" -Wc,-M
-  else
-    tmpdepfile1=$dir$base.u
-    tmpdepfile2=$dir$base.u
-    tmpdepfile3=$dir$base.u
-    "$@" -M
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-    exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  aix_post_process_depfile
-  ;;
-
-tcc)
-  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
-  # FIXME: That version still under development at the moment of writing.
-  #        Make that this statement remains true also for stable, released
-  #        versions.
-  # It will wrap lines (doesn't matter whether long or short) with a
-  # trailing '\', as in:
-  #
-  #   foo.o : \
-  #    foo.c \
-  #    foo.h \
-  #
-  # It will put a trailing '\' even on the last line, and will use leading
-  # spaces rather than leading tabs (at least since its commit 0394caf7
-  # "Emit spaces for -MD").
-  "$@" -MD -MF "$tmpdepfile"
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
-  # We have to change lines of the first kind to '$object: \'.
-  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
-  # And for each line of the second kind, we have to emit a 'dep.h:'
-  # dummy dependency, to avoid the deleted-header problem.
-  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-## The order of this option in the case statement is important, since the
-## shell code in configure will try each of these formats in the order
-## listed in this file.  A plain '-MD' option would be understood by many
-## compilers, so we must ensure this comes after the gcc and icc options.
-pgcc)
-  # Portland's C compiler understands '-MD'.
-  # Will always output deps to 'file.d' where file is the root name of the
-  # source file under compilation, even if file resides in a subdirectory.
-  # The object file name does not affect the name of the '.d' file.
-  # pgcc 10.2 will output
-  #    foo.o: sub/foo.c sub/foo.h
-  # and will wrap long lines using '\' :
-  #    foo.o: sub/foo.c ... \
-  #     sub/foo.h ... \
-  #     ...
-  set_dir_from "$object"
-  # Use the source, not the object, to determine the base name, since
-  # that's sadly what pgcc will do too.
-  set_base_from "$source"
-  tmpdepfile=$base.d
-
-  # For projects that build the same source file twice into different object
-  # files, the pgcc approach of using the *source* file root name can cause
-  # problems in parallel builds.  Use a locking strategy to avoid stomping on
-  # the same $tmpdepfile.
-  lockdir=$base.d-lock
-  trap "
-    echo '$0: caught signal, cleaning up...' >&2
-    rmdir '$lockdir'
-    exit 1
-  " 1 2 13 15
-  numtries=100
-  i=$numtries
-  while test $i -gt 0; do
-    # mkdir is a portable test-and-set.
-    if mkdir "$lockdir" 2>/dev/null; then
-      # This process acquired the lock.
-      "$@" -MD
-      stat=$?
-      # Release the lock.
-      rmdir "$lockdir"
-      break
-    else
-      # If the lock is being held by a different process, wait
-      # until the winning process is done or we timeout.
-      while test -d "$lockdir" && test $i -gt 0; do
-        sleep 1
-        i=`expr $i - 1`
-      done
-    fi
-    i=`expr $i - 1`
-  done
-  trap - 1 2 13 15
-  if test $i -le 0; then
-    echo "$0: failed to acquire lock after $numtries attempts" >&2
-    echo "$0: check lockdir '$lockdir'" >&2
-    exit 1
-  fi
-
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  # Each line is of the form `foo.o: dependent.h',
-  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
-  # Do two passes, one to just change these to
-  # `$object: dependent.h' and one to simply `dependent.h:'.
-  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-hp2)
-  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
-  # compilers, which have integrated preprocessors.  The correct option
-  # to use with these is +Maked; it writes dependencies to a file named
-  # 'foo.d', which lands next to the object file, wherever that
-  # happens to be.
-  # Much of this is similar to the tru64 case; see comments there.
-  set_dir_from  "$object"
-  set_base_from "$object"
-  if test "$libtool" = yes; then
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir.libs/$base.d
-    "$@" -Wc,+Maked
-  else
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir$base.d
-    "$@" +Maked
-  fi
-  stat=$?
-  if test $stat -ne 0; then
-     rm -f "$tmpdepfile1" "$tmpdepfile2"
-     exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  if test -f "$tmpdepfile"; then
-    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
-    # Add 'dependent.h:' lines.
-    sed -ne '2,${
-               s/^ *//
-               s/ \\*$//
-               s/$/:/
-               p
-             }' "$tmpdepfile" >> "$depfile"
-  else
-    make_dummy_depfile
-  fi
-  rm -f "$tmpdepfile" "$tmpdepfile2"
-  ;;
-
-tru64)
-  # The Tru64 compiler uses -MD to generate dependencies as a side
-  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
-  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
-  # dependencies in 'foo.d' instead, so we check for that too.
-  # Subdirectories are respected.
-  set_dir_from  "$object"
-  set_base_from "$object"
-
-  if test "$libtool" = yes; then
-    # Libtool generates 2 separate objects for the 2 libraries.  These
-    # two compilations output dependencies in $dir.libs/$base.o.d and
-    # in $dir$base.o.d.  We have to check for both files, because
-    # one of the two compilations can be disabled.  We should prefer
-    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
-    # automatically cleaned when .libs/ is deleted, while ignoring
-    # the former would cause a distcleancheck panic.
-    tmpdepfile1=$dir$base.o.d          # libtool 1.5
-    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
-    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
-    "$@" -Wc,-MD
-  else
-    tmpdepfile1=$dir$base.d
-    tmpdepfile2=$dir$base.d
-    tmpdepfile3=$dir$base.d
-    "$@" -MD
-  fi
-
-  stat=$?
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-    exit $stat
-  fi
-
-  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
-  do
-    test -f "$tmpdepfile" && break
-  done
-  # Same post-processing that is required for AIX mode.
-  aix_post_process_depfile
-  ;;
-
-msvc7)
-  if test "$libtool" = yes; then
-    showIncludes=-Wc,-showIncludes
-  else
-    showIncludes=-showIncludes
-  fi
-  "$@" $showIncludes > "$tmpdepfile"
-  stat=$?
-  grep -v '^Note: including file: ' "$tmpdepfile"
-  if test $stat -ne 0; then
-    rm -f "$tmpdepfile"
-    exit $stat
-  fi
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  # The first sed program below extracts the file names and escapes
-  # backslashes for cygpath.  The second sed program outputs the file
-  # name when reading, but also accumulates all include files in the
-  # hold buffer in order to output them again at the end.  This only
-  # works with sed implementations that can handle large buffers.
-  sed < "$tmpdepfile" -n '
-/^Note: including file:  *\(.*\)/ {
-  s//\1/
-  s/\\/\\\\/g
-  p
-}' | $cygpath_u | sort -u | sed -n '
-s/ /\\ /g
-s/\(.*\)/'"$tab"'\1 \\/p
-s/.\(.*\) \\/\1:/
-H
-$ {
-  s/.*/'"$tab"'/
-  G
-  p
-}' >> "$depfile"
-  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
-  rm -f "$tmpdepfile"
-  ;;
-
-msvc7msys)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-#nosideeffect)
-  # This comment above is used by automake to tell side-effect
-  # dependency tracking mechanisms from slower ones.
-
-dashmstdout)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout, regardless of -o.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove '-o $object'.
-  IFS=" "
-  for arg
-  do
-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  test -z "$dashmflag" && dashmflag=-M
-  # Require at least two characters before searching for ':'
-  # in the target name.  This is to cope with DOS-style filenames:
-  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
-  "$@" $dashmflag |
-    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
-  rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process this sed invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  tr ' ' "$nl" < "$tmpdepfile" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-dashXmstdout)
-  # This case only exists to satisfy depend.m4.  It is never actually
-  # run, as this mode is specially recognized in the preamble.
-  exit 1
-  ;;
-
-makedepend)
-  "$@" || exit $?
-  # Remove any Libtool call
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-  # X makedepend
-  shift
-  cleared=no eat=no
-  for arg
-  do
-    case $cleared in
-    no)
-      set ""; shift
-      cleared=yes ;;
-    esac
-    if test $eat = yes; then
-      eat=no
-      continue
-    fi
-    case "$arg" in
-    -D*|-I*)
-      set fnord "$@" "$arg"; shift ;;
-    # Strip any option that makedepend may not understand.  Remove
-    # the object too, otherwise makedepend will parse it as a source file.
-    -arch)
-      eat=yes ;;
-    -*|$object)
-      ;;
-    *)
-      set fnord "$@" "$arg"; shift ;;
-    esac
-  done
-  obj_suffix=`echo "$object" | sed 's/^.*\././'`
-  touch "$tmpdepfile"
-  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
-  rm -f "$depfile"
-  # makedepend may prepend the VPATH from the source file name to the object.
-  # No need to regex-escape $object, excess matching of '.' is harmless.
-  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
-  # Some versions of the HPUX 10.20 sed can't process the last invocation
-  # correctly.  Breaking it into two sed invocations is a workaround.
-  sed '1,2d' "$tmpdepfile" \
-    | tr ' ' "$nl" \
-    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
-    | sed -e 's/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile" "$tmpdepfile".bak
-  ;;
-
-cpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  # Remove '-o $object'.
-  IFS=" "
-  for arg
-  do
-    case $arg in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    *)
-      set fnord "$@" "$arg"
-      shift # fnord
-      shift # $arg
-      ;;
-    esac
-  done
-
-  "$@" -E \
-    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-    | sed '$ s: \\$::' > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  cat < "$tmpdepfile" >> "$depfile"
-  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvisualcpp)
-  # Important note: in order to support this mode, a compiler *must*
-  # always write the preprocessed file to stdout.
-  "$@" || exit $?
-
-  # Remove the call to Libtool.
-  if test "$libtool" = yes; then
-    while test "X$1" != 'X--mode=compile'; do
-      shift
-    done
-    shift
-  fi
-
-  IFS=" "
-  for arg
-  do
-    case "$arg" in
-    -o)
-      shift
-      ;;
-    $object)
-      shift
-      ;;
-    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
-        set fnord "$@"
-        shift
-        shift
-        ;;
-    *)
-        set fnord "$@" "$arg"
-        shift
-        shift
-        ;;
-    esac
-  done
-  "$@" -E 2>/dev/null |
-  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
-  rm -f "$depfile"
-  echo "$object : \\" > "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
-  echo "$tab" >> "$depfile"
-  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
-  rm -f "$tmpdepfile"
-  ;;
-
-msvcmsys)
-  # This case exists only to let depend.m4 do its work.  It works by
-  # looking at the text of this script.  This case will never be run,
-  # since it is checked for above.
-  exit 1
-  ;;
-
-none)
-  exec "$@"
-  ;;
-
-*)
-  echo "Unknown depmode $depmode" 1>&2
-  exit 1
-  ;;
-esac
-
-exit 0
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/install-sh b/install-sh
deleted file mode 100755
index 0360b79..0000000
--- a/install-sh
+++ /dev/null
@@ -1,501 +0,0 @@
-#!/bin/sh
-# install - install a program, script, or datafile
-
-scriptversion=2016-01-11.22; # UTC
-
-# This originates from X11R5 (mit/util/scripts/install.sh), which was
-# later released in X11R6 (xc/config/util/install.sh) with the
-# following copyright and license.
-#
-# Copyright (C) 1994 X Consortium
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to
-# deal in the Software without restriction, including without limitation the
-# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-# sell copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
-# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-#
-# Except as contained in this notice, the name of the X Consortium shall not
-# be used in advertising or otherwise to promote the sale, use or other deal-
-# ings in this Software without prior written authorization from the X Consor-
-# tium.
-#
-#
-# FSF changes to this file are in the public domain.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# 'make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.
-
-tab='	'
-nl='
-'
-IFS=" $tab$nl"
-
-# Set DOITPROG to "echo" to test this script.
-
-doit=${DOITPROG-}
-doit_exec=${doit:-exec}
-
-# Put in absolute file names if you don't have them in your path;
-# or use environment vars.
-
-chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-chmod}
-chownprog=${CHOWNPROG-chown}
-cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-cp}
-mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-mv}
-rmprog=${RMPROG-rm}
-stripprog=${STRIPPROG-strip}
-
-posix_mkdir=
-
-# Desired mode of installed file.
-mode=0755
-
-chgrpcmd=
-chmodcmd=$chmodprog
-chowncmd=
-mvcmd=$mvprog
-rmcmd="$rmprog -f"
-stripcmd=
-
-src=
-dst=
-dir_arg=
-dst_arg=
-
-copy_on_change=false
-is_target_a_directory=possibly
-
-usage="\
-Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
-   or: $0 [OPTION]... SRCFILES... DIRECTORY
-   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
-   or: $0 [OPTION]... -d DIRECTORIES...
-
-In the 1st form, copy SRCFILE to DSTFILE.
-In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
-In the 4th, create DIRECTORIES.
-
-Options:
-     --help     display this help and exit.
-     --version  display version info and exit.
-
-  -c            (ignored)
-  -C            install only if different (preserve the last data modification time)
-  -d            create directories instead of installing files.
-  -g GROUP      $chgrpprog installed files to GROUP.
-  -m MODE       $chmodprog installed files to MODE.
-  -o USER       $chownprog installed files to USER.
-  -s            $stripprog installed files.
-  -t DIRECTORY  install into DIRECTORY.
-  -T            report an error if DSTFILE is a directory.
-
-Environment variables override the default commands:
-  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
-  RMPROG STRIPPROG
-"
-
-while test $# -ne 0; do
-  case $1 in
-    -c) ;;
-
-    -C) copy_on_change=true;;
-
-    -d) dir_arg=true;;
-
-    -g) chgrpcmd="$chgrpprog $2"
-        shift;;
-
-    --help) echo "$usage"; exit $?;;
-
-    -m) mode=$2
-        case $mode in
-          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
-            echo "$0: invalid mode: $mode" >&2
-            exit 1;;
-        esac
-        shift;;
-
-    -o) chowncmd="$chownprog $2"
-        shift;;
-
-    -s) stripcmd=$stripprog;;
-
-    -t)
-        is_target_a_directory=always
-        dst_arg=$2
-        # Protect names problematic for 'test' and other utilities.
-        case $dst_arg in
-          -* | [=\(\)!]) dst_arg=./$dst_arg;;
-        esac
-        shift;;
-
-    -T) is_target_a_directory=never;;
-
-    --version) echo "$0 $scriptversion"; exit $?;;
-
-    --) shift
-        break;;
-
-    -*) echo "$0: invalid option: $1" >&2
-        exit 1;;
-
-    *)  break;;
-  esac
-  shift
-done
-
-# We allow the use of options -d and -T together, by making -d
-# take the precedence; this is for compatibility with GNU install.
-
-if test -n "$dir_arg"; then
-  if test -n "$dst_arg"; then
-    echo "$0: target directory not allowed when installing a directory." >&2
-    exit 1
-  fi
-fi
-
-if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
-  # When -d is used, all remaining arguments are directories to create.
-  # When -t is used, the destination is already specified.
-  # Otherwise, the last argument is the destination.  Remove it from $@.
-  for arg
-  do
-    if test -n "$dst_arg"; then
-      # $@ is not empty: it contains at least $arg.
-      set fnord "$@" "$dst_arg"
-      shift # fnord
-    fi
-    shift # arg
-    dst_arg=$arg
-    # Protect names problematic for 'test' and other utilities.
-    case $dst_arg in
-      -* | [=\(\)!]) dst_arg=./$dst_arg;;
-    esac
-  done
-fi
-
-if test $# -eq 0; then
-  if test -z "$dir_arg"; then
-    echo "$0: no input file specified." >&2
-    exit 1
-  fi
-  # It's OK to call 'install-sh -d' without argument.
-  # This can happen when creating conditional directories.
-  exit 0
-fi
-
-if test -z "$dir_arg"; then
-  if test $# -gt 1 || test "$is_target_a_directory" = always; then
-    if test ! -d "$dst_arg"; then
-      echo "$0: $dst_arg: Is not a directory." >&2
-      exit 1
-    fi
-  fi
-fi
-
-if test -z "$dir_arg"; then
-  do_exit='(exit $ret); exit $ret'
-  trap "ret=129; $do_exit" 1
-  trap "ret=130; $do_exit" 2
-  trap "ret=141; $do_exit" 13
-  trap "ret=143; $do_exit" 15
-
-  # Set umask so as not to create temps with too-generous modes.
-  # However, 'strip' requires both read and write access to temps.
-  case $mode in
-    # Optimize common cases.
-    *644) cp_umask=133;;
-    *755) cp_umask=22;;
-
-    *[0-7])
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw='% 200'
-      fi
-      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
-    *)
-      if test -z "$stripcmd"; then
-        u_plus_rw=
-      else
-        u_plus_rw=,u+rw
-      fi
-      cp_umask=$mode$u_plus_rw;;
-  esac
-fi
-
-for src
-do
-  # Protect names problematic for 'test' and other utilities.
-  case $src in
-    -* | [=\(\)!]) src=./$src;;
-  esac
-
-  if test -n "$dir_arg"; then
-    dst=$src
-    dstdir=$dst
-    test -d "$dstdir"
-    dstdir_status=$?
-  else
-
-    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
-    # might cause directories to be created, which would be especially bad
-    # if $src (and thus $dsttmp) contains '*'.
-    if test ! -f "$src" && test ! -d "$src"; then
-      echo "$0: $src does not exist." >&2
-      exit 1
-    fi
-
-    if test -z "$dst_arg"; then
-      echo "$0: no destination specified." >&2
-      exit 1
-    fi
-    dst=$dst_arg
-
-    # If destination is a directory, append the input filename; won't work
-    # if double slashes aren't ignored.
-    if test -d "$dst"; then
-      if test "$is_target_a_directory" = never; then
-        echo "$0: $dst_arg: Is a directory" >&2
-        exit 1
-      fi
-      dstdir=$dst
-      dst=$dstdir/`basename "$src"`
-      dstdir_status=0
-    else
-      dstdir=`dirname "$dst"`
-      test -d "$dstdir"
-      dstdir_status=$?
-    fi
-  fi
-
-  obsolete_mkdir_used=false
-
-  if test $dstdir_status != 0; then
-    case $posix_mkdir in
-      '')
-        # Create intermediate dirs using mode 755 as modified by the umask.
-        # This is like FreeBSD 'install' as of 1997-10-28.
-        umask=`umask`
-        case $stripcmd.$umask in
-          # Optimize common cases.
-          *[2367][2367]) mkdir_umask=$umask;;
-          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
-
-          *[0-7])
-            mkdir_umask=`expr $umask + 22 \
-              - $umask % 100 % 40 + $umask % 20 \
-              - $umask % 10 % 4 + $umask % 2
-            `;;
-          *) mkdir_umask=$umask,go-w;;
-        esac
-
-        # With -d, create the new directory with the user-specified mode.
-        # Otherwise, rely on $mkdir_umask.
-        if test -n "$dir_arg"; then
-          mkdir_mode=-m$mode
-        else
-          mkdir_mode=
-        fi
-
-        posix_mkdir=false
-        case $umask in
-          *[123567][0-7][0-7])
-            # POSIX mkdir -p sets u+wx bits regardless of umask, which
-            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
-            ;;
-          *)
-            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
-            trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
-
-            if (umask $mkdir_umask &&
-                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
-            then
-              if test -z "$dir_arg" || {
-                   # Check for POSIX incompatibilities with -m.
-                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
-                   # other-writable bit of parent directory when it shouldn't.
-                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
-                   ls_ld_tmpdir=`ls -ld "$tmpdir"`
-                   case $ls_ld_tmpdir in
-                     d????-?r-*) different_mode=700;;
-                     d????-?--*) different_mode=755;;
-                     *) false;;
-                   esac &&
-                   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
-                     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
-                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
-                   }
-                 }
-              then posix_mkdir=:
-              fi
-              rmdir "$tmpdir/d" "$tmpdir"
-            else
-              # Remove any dirs left behind by ancient mkdir implementations.
-              rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
-            fi
-            trap '' 0;;
-        esac;;
-    esac
-
-    if
-      $posix_mkdir && (
-        umask $mkdir_umask &&
-        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
-      )
-    then :
-    else
-
-      # The umask is ridiculous, or mkdir does not conform to POSIX,
-      # or it failed possibly due to a race condition.  Create the
-      # directory the slow way, step by step, checking for races as we go.
-
-      case $dstdir in
-        /*) prefix='/';;
-        [-=\(\)!]*) prefix='./';;
-        *)  prefix='';;
-      esac
-
-      oIFS=$IFS
-      IFS=/
-      set -f
-      set fnord $dstdir
-      shift
-      set +f
-      IFS=$oIFS
-
-      prefixes=
-
-      for d
-      do
-        test X"$d" = X && continue
-
-        prefix=$prefix$d
-        if test -d "$prefix"; then
-          prefixes=
-        else
-          if $posix_mkdir; then
-            (umask=$mkdir_umask &&
-             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
-            # Don't fail if two instances are running concurrently.
-            test -d "$prefix" || exit 1
-          else
-            case $prefix in
-              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
-              *) qprefix=$prefix;;
-            esac
-            prefixes="$prefixes '$qprefix'"
-          fi
-        fi
-        prefix=$prefix/
-      done
-
-      if test -n "$prefixes"; then
-        # Don't fail if two instances are running concurrently.
-        (umask $mkdir_umask &&
-         eval "\$doit_exec \$mkdirprog $prefixes") ||
-          test -d "$dstdir" || exit 1
-        obsolete_mkdir_used=true
-      fi
-    fi
-  fi
-
-  if test -n "$dir_arg"; then
-    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
-    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
-    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
-      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
-  else
-
-    # Make a couple of temp file names in the proper directory.
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- at ASCIIDOC_TRUE@@PACKAGE at .6: deutex.txt
- at ASCIIDOC_TRUE@	a2x -f manpage deutex.txt
-
- at ASCIIDOC_TRUE@@PACKAGE at .html: deutex.txt
- at ASCIIDOC_TRUE@	TZ=UTC asciidoc deutex.txt
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/man/deutex.txt.in b/man/deutex.txt.in
index c271cda..a0ad953 100644
--- a/man/deutex.txt.in
+++ b/man/deutex.txt.in
@@ -259,6 +259,9 @@ Create little endian wads (default).
 Output texture format (*nameless*, *none*, *normal*, *strife11*;
 default normal).
 
+*-pngoffsets*::
+Override offsets in WADINFO with offsets contained in PNG metadata
+
 *-tf* 'code'::
 Texture format (*nameless*, *none*, *normal*, *strife11*; default
 normal).
diff --git a/missing b/missing
deleted file mode 100755
index c6e3795..0000000
--- a/missing
+++ /dev/null
@@ -1,215 +0,0 @@
-#! /bin/sh
-# Common wrapper for a few potentially missing GNU programs.
-
-scriptversion=2016-01-11.22; # UTC
-
-# Copyright (C) 1996-2017 Free Software Foundation, Inc.
-# Originally written by Fran,cois Pinard <pinard at iro.umontreal.ca>, 1996.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-if test $# -eq 0; then
-  echo 1>&2 "Try '$0 --help' for more information"
-  exit 1
-fi
-
-case $1 in
-
-  --is-lightweight)
-    # Used by our autoconf macros to check whether the available missing
-    # script is modern enough.
-    exit 0
-    ;;
-
-  --run)
-    # Back-compat with the calling convention used by older automake.
-    shift
-    ;;
-
-  -h|--h|--he|--hel|--help)
-    echo "\
-$0 [OPTION]... PROGRAM [ARGUMENT]...
-
-Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
-to PROGRAM being missing or too old.
-
-Options:
-  -h, --help      display this help and exit
-  -v, --version   output version information and exit
-
-Supported PROGRAM values:
-  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
-  bison     yacc      flex         lex       help2man
-
-Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
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-
-Send bug reports to <bug-automake at gnu.org>."
-    exit $?
-    ;;
-
-  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
-    echo "missing $scriptversion (GNU Automake)"
-    exit $?
-    ;;
-
-  -*)
-    echo 1>&2 "$0: unknown '$1' option"
-    echo 1>&2 "Try '$0 --help' for more information"
-    exit 1
-    ;;
-
-esac
-
-# Run the given program, remember its exit status.
-"$@"; st=$?
-
-# If it succeeded, we are done.
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-# passed; such an option is passed most likely to detect whether the
-# program is present and works.
-case $2 in --version|--help) exit $st;; esac
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-# Exit code 63 means version mismatch.  This often happens when the user
-# tries to use an ancient version of a tool on a file that requires a
-# minimum version.
-if test $st -eq 63; then
-  msg="probably too old"
-elif test $st -eq 127; then
-  # Program was missing.
-  msg="missing on your system"
-else
-  # Program was found and executed, but failed.  Give up.
-  exit $st
-fi
-
-perl_URL=http://www.perl.org/
-flex_URL=http://flex.sourceforge.net/
-gnu_software_URL=http://www.gnu.org/software
-
-program_details ()
-{
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-    aclocal|automake)
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-      echo "<$gnu_software_URL/automake>"
-      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
-      echo "<$gnu_software_URL/autoconf>"
-      echo "<$gnu_software_URL/m4/>"
-      echo "<$perl_URL>"
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-    autoconf|autom4te|autoheader)
-      echo "The '$1' program is part of the GNU Autoconf package:"
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-      echo "It also requires GNU m4 and Perl in order to run:"
-      echo "<$gnu_software_URL/m4/>"
-      echo "<$perl_URL>"
-      ;;
-  esac
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-
-give_advice ()
-{
-  # Normalize program name to check for.
-  normalized_program=`echo "$1" | sed '
-    s/^gnu-//; t
-    s/^gnu//; t
-    s/^g//; t'`
-
-  printf '%s\n' "'$1' is $msg."
-
-  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
-  case $normalized_program in
-    autoconf*)
-      echo "You should only need it if you modified 'configure.ac',"
-      echo "or m4 files included by it."
-      program_details 'autoconf'
-      ;;
-    autoheader*)
-      echo "You should only need it if you modified 'acconfig.h' or"
-      echo "$configure_deps."
-      program_details 'autoheader'
-      ;;
-    automake*)
-      echo "You should only need it if you modified 'Makefile.am' or"
-      echo "$configure_deps."
-      program_details 'automake'
-      ;;
-    aclocal*)
-      echo "You should only need it if you modified 'acinclude.m4' or"
-      echo "$configure_deps."
-      program_details 'aclocal'
-      ;;
-   autom4te*)
-      echo "You might have modified some maintainer files that require"
-      echo "the 'autom4te' program to be rebuilt."
-      program_details 'autom4te'
-      ;;
-    bison*|yacc*)
-      echo "You should only need it if you modified a '.y' file."
-      echo "You may want to install the GNU Bison package:"
-      echo "<$gnu_software_URL/bison/>"
-      ;;
-    lex*|flex*)
-      echo "You should only need it if you modified a '.l' file."
-      echo "You may want to install the Fast Lexical Analyzer package:"
-      echo "<$flex_URL>"
-      ;;
-    help2man*)
-      echo "You should only need it if you modified a dependency" \
-           "of a man page."
-      echo "You may want to install the GNU Help2man package:"
-      echo "<$gnu_software_URL/help2man/>"
-    ;;
-    makeinfo*)
-      echo "You should only need it if you modified a '.texi' file, or"
-      echo "any other file indirectly affecting the aspect of the manual."
-      echo "You might want to install the Texinfo package:"
-      echo "<$gnu_software_URL/texinfo/>"
-      echo "The spurious makeinfo call might also be the consequence of"
-      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
-      echo "want to install GNU make:"
-      echo "<$gnu_software_URL/make/>"
-      ;;
-    *)
-      echo "You might have modified some files without having the proper"
-      echo "tools for further handling them.  Check the 'README' file, it"
-      echo "often tells you about the needed prerequisites for installing"
-      echo "this package.  You may also peek at any GNU archive site, in"
-      echo "case some other package contains this missing '$1' program."
-      ;;
-  esac
-}
-
-give_advice "$1" | sed -e '1s/^/WARNING: /' \
-                       -e '2,$s/^/         /' >&2
-
-# Propagate the correct exit status (expected to be 127 for a program
-# not found, 63 for a program that failed due to version mismatch).
-exit $st
-
-# Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-time-zone: "UTC0"
-# time-stamp-end: "; # UTC"
-# End:
diff --git a/pkg.w32/.gitignore b/pkg.w32/.gitignore
new file mode 100644
index 0000000..9f457ff
--- /dev/null
+++ b/pkg.w32/.gitignore
@@ -0,0 +1,3 @@
+*.zip
+config.make
+staging
diff --git a/src/.gitignore b/src/.gitignore
new file mode 100644
index 0000000..646c7b0
--- /dev/null
+++ b/src/.gitignore
@@ -0,0 +1,4 @@
+*.o
+*.exe
+deutex
+.deps
diff --git a/src/Makefile.am b/src/Makefile.am
index e610b5a..551974b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -2,9 +2,9 @@ bin_PROGRAMS = deutex
 deutex_SOURCES = color.c color.h compose.c deutex.c deutex.h		\
 endianio.c endianio.h endianm.c endianm.h extract.c extract.h ident.c	\
 ident.h listdir.c lists.c lists.h lzw.c merge.c merge.h mkwad.c		\
-mkwad.h picture.c picture.h sound.c sound.h sscript.c sscript.h		\
-text.c text.h texture.c texture.h tools.c tools.h usedidx.c usedidx.h	\
-wadio.c wadio.h
+mkwad.h png_tools.c png_tools.h picture.c picture.h sound.c sound.h	\
+sscript.c sscript.h text.c text.h texture.c texture.h tools.c tools.h	\
+usedidx.c usedidx.h wadio.c wadio.h
 
 deutex_LDADD=@PNG_LIBS@
 AM_CFLAGS=@PNG_CFLAGS@
diff --git a/src/Makefile.in b/src/Makefile.in
deleted file mode 100644
index 12f1dde..0000000
--- a/src/Makefile.in
+++ /dev/null
@@ -1,596 +0,0 @@
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-
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-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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-SET_MAKE = @SET_MAKE@
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-top_builddir = @top_builddir@
-top_srcdir = @top_srcdir@
-deutex_SOURCES = color.c color.h compose.c deutex.c deutex.h		\
-endianio.c endianio.h endianm.c endianm.h extract.c extract.h ident.c	\
-ident.h listdir.c lists.c lists.h lzw.c merge.c merge.h mkwad.c		\
-mkwad.h picture.c picture.h sound.c sound.h sscript.c sscript.h		\
-text.c text.h texture.c texture.h tools.c tools.h usedidx.c usedidx.h	\
-wadio.c wadio.h
-
-deutex_LDADD = @PNG_LIBS@
-AM_CFLAGS = @PNG_CFLAGS@
-all: all-am
-
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-	fi; \
-	for p in $$list; do echo "$$p $$p"; done | \
-	sed 's/$(EXEEXT)$$//' | \
-	while read p p1; do if test -f $$p \
-	  ; then echo "$$p"; echo "$$p"; else :; fi; \
-	done | \
-	sed -e 'p;s,.*/,,;n;h' \
-	    -e 's|.*|.|' \
-	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
-	sed 'N;N;N;s,\n, ,g' | \
-	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
-	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
-	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
-	    else { print "f", $$3 "/" $$4, $$1; } } \
-	  END { for (d in files) print "f", d, files[d] }' | \
-	while read type dir files; do \
-	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
-	    test -z "$$files" || { \
-	      echo " $(INSTALL_PROGRAM_ENV) $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(bindir)$$dir'"; \
-	      $(INSTALL_PROGRAM_ENV) $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
-	    } \
-	; done
-
-uninstall-binPROGRAMS:
-	@$(NORMAL_UNINSTALL)
-	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
-	files=`for p in $$list; do echo "$$p"; done | \
-	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
-	      -e 's/$$/$(EXEEXT)/' \
-	`; \
-	test -n "$$list" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(bindir)" && rm -f $$files
-
-clean-binPROGRAMS:
-	-test -z "$(bin_PROGRAMS)" || rm -f $(bin_PROGRAMS)
-
-deutex$(EXEEXT): $(deutex_OBJECTS) $(deutex_DEPENDENCIES) $(EXTRA_deutex_DEPENDENCIES) 
-	@rm -f deutex$(EXEEXT)
-	$(AM_V_CCLD)$(LINK) $(deutex_OBJECTS) $(deutex_LDADD) $(LIBS)
-
-mostlyclean-compile:
-	-rm -f *.$(OBJEXT)
-
-distclean-compile:
-	-rm -f *.tab.c
-
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/color.Po at am__quote@
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/compose.Po at am__quote@
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/deutex.Po at am__quote@
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/endianio.Po at am__quote@
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/endianm.Po at am__quote@
- at AMDEP_TRUE@@am__include@ @am__quote at ./$(DEPDIR)/extract.Po at am__quote@
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-
-.c.o:
- at am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
- at am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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- at am__fastdepCC_FALSE@	$(AM_V_CC at am__nodep@)$(COMPILE) -c -o $@ $<
-
-.c.obj:
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- at am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
- at AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
- at am__fastdepCC_FALSE@	$(AM_V_CC at am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
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-ID: $(am__tagged_files)
-	$(am__define_uniq_tagged_files); mkid -fID $$unique
-tags: tags-am
-TAGS: tags
-
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-	set x; \
-	here=`pwd`; \
-	$(am__define_uniq_tagged_files); \
-	shift; \
-	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
-	  test -n "$$unique" || unique=$$empty_fix; \
-	  if test $$# -gt 0; then \
-	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
-	      "$$@" $$unique; \
-	  else \
-	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
-	      $$unique; \
-	  fi; \
-	fi
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-
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-	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
-	     $$unique
-
-GTAGS:
-	here=`$(am__cd) $(top_builddir) && pwd` \
-	  && $(am__cd) $(top_srcdir) \
-	  && gtags -i $(GTAGS_ARGS) "$$here"
-cscopelist: cscopelist-am
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-	list='$(am__tagged_files)'; \
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-	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
-	  *) sdir=$(subdir)/$(srcdir) ;; \
-	esac; \
-	for i in $$list; do \
-	  if test -f "$$i"; then \
-	    echo "$(subdir)/$$i"; \
-	  else \
-	    echo "$$sdir/$$i"; \
-	  fi; \
-	done >> $(top_builddir)/cscope.files
-
-distclean-tags:
-	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
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-distdir: $(DISTFILES)
-	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
-	list='$(DISTFILES)'; \
-	  dist_files=`for file in $$list; do echo $$file; done | \
-	  sed -e "s|^$$srcdirstrip/||;t" \
-	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
-	case $$dist_files in \
-	  */*) $(MKDIR_P) `echo "$$dist_files" | \
-			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
-			   sort -u` ;; \
-	esac; \
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-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
-	    fi; \
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-	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
-	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
-	    fi; \
-	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
-	  else \
-	    test -f "$(distdir)/$$file" \
-	    || cp -p $$d/$$file "$(distdir)/$$file" \
-	    || exit 1; \
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-	done
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-	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
-	fi
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-	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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-	@echo "This command is intended for maintainers to use"
-	@echo "it deletes files that may require special tools to rebuild."
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-	distclean distclean-compile distclean-generic distclean-tags \
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-# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/src/compose.c b/src/compose.c
index 3472d1d..51a6853 100644
--- a/src/compose.c
+++ b/src/compose.c
@@ -287,7 +287,7 @@ void CMPOmakePWAD(const char *doomwad, WADTYPE type, const char *PWADname,
             while (TXTentryParse
                    (name, filenam, &X, &Y, &Repeat, TXT, false) == true) {
                 if (MakeFileName
-                    (file, DataDir, "TEXTURES", "", name, "TXT") == true) {
+                    (file, DataDir, "TEXTURES", "", filenam, "TXT") == true) {
                     Detail("CM52", "Reading texture file %s", fname(file));
                     TXUreadTexFile(file, true);
                     NeedPNAME = true;
@@ -340,7 +340,7 @@ void CMPOmakePWAD(const char *doomwad, WADTYPE type, const char *PWADname,
             while (TXTentryParse
                    (name, filenam, &X, &Y, &Repeat, TXT, false) == true) {
                 if (MakeFileName
-                    (file, DataDir, "TEXTURES", "", name, "TXT") == true) {
+                    (file, DataDir, "TEXTURES", "", filenam, "TXT") == true) {
                     Detail("CM57", "Reading texture file %s", fname(file));
                     TXUreadTexFile(file, true);
                     NeedPNAME = true;
diff --git a/src/deutex.c b/src/deutex.c
index 28fbb2c..15ff8c3 100644
--- a/src/deutex.c
+++ b/src/deutex.c
@@ -69,6 +69,7 @@ texture_format_t output_texture_format = TF_NORMAL;
 texture_lump_t texture_lump = TL_NORMAL;
 rate_policy_t rate_policy = RP_WARN;
 clobber_t clobber = CLOBBER_NO;
+bool use_png_offsets = false;
 const char *debug_ident = NULL;
 const char *palette_lump = "PLAYPAL";
 
@@ -384,6 +385,7 @@ void COMrate(int argc, const char *argv[])
 void COMstroy(int argc, const char *argv[])
 {
     WSafe = false;
+    clobber = CLOBBER_YES;
     Info("AA28", "Overwrite existing files");
     (void) argc;
     (void) argv;
@@ -441,6 +443,15 @@ void COMle(int argc, const char *argv[])
     (void) argv;
 }
 
+#ifdef HAVE_LIBPNG
+void COMpngoffset(int argc, const char *argv[])
+{
+    use_png_offsets = true;
+    (void) argc;
+    (void) argv;
+}
+#endif
+
 void COMbe(int argc, const char *argv[])
 {
     set_input_wad_endianness(1);
@@ -713,6 +724,7 @@ static comdef_t Com[] = {
     {CM0, 0, "syntax", COMformat, NULL,
      "print the syntax of wad creation directives"},
     {CM3, 1, "unused", COMvoid, "<in.wad>", "find unused spaces in a wad"},
+    {CM0, 0, "version", COMvers, NULL, "same as \1--version\3"},
     {CM0, 0, "-version", COMvers, NULL,
      "print version number and exit successfully"},
 
@@ -795,6 +807,10 @@ static comdef_t Com[] = {
     {OP2, 0, "ole", COMole, NULL, "create little endian wads (default)"},
     {OP2, 1, "otf", COMtf, "<code>",
      "output texture format (\1nameless\3, \1none\3, *\1normal\3, \1strife11\3)"},
+#ifdef HAVE_LIBPNG
+    {OP2, 0, "pngoffsets", COMpngoffset, NULL,
+     "override offsets in WADINFO with offsets contained in PNG metadata"},
+#endif
     /*by request from George Hamlin */
     {OP2, 0, "s_end", COMgeorge, NULL,
      "use \1S_END\3 for sprites, not \1SS_END\3"},
diff --git a/src/deutex.h b/src/deutex.h
index ff65b16..fd85e31 100644
--- a/src/deutex.h
+++ b/src/deutex.h
@@ -8,6 +8,8 @@
 
   SPDX-License-Identifier: GPL-2.0+
 */
+#ifndef DEUTEX_H
+#define DEUTEX_H
 
 #include "config.h"
 
@@ -171,7 +173,7 @@ typedef struct cusage_s cusage_t;
  */
 typedef enum { PF_NORMAL, PF_ALPHA, PF_PR } picture_format_t;
 typedef enum { TF_NORMAL, TF_NAMELESS, TF_NONE,
-    TF_STRIFE11
+               TF_STRIFE11
 } texture_format_t;
 typedef enum { TL_NORMAL, TL_TEXTURES, TL_NONE } texture_lump_t;
 typedef enum { RP_REJECT, RP_FORCE, RP_WARN, RP_ACCEPT } rate_policy_t;
@@ -182,5 +184,8 @@ extern texture_format_t output_texture_format;
 extern texture_lump_t texture_lump;
 extern rate_policy_t rate_policy;
 extern clobber_t clobber;
+extern bool use_png_offsets;
 extern const char *debug_ident;
 extern const char *palette_lump;
+
+#endif //DEUTEX_H
diff --git a/src/endianm.c b/src/endianm.c
index c30e365..375b387 100644
--- a/src/endianm.c
+++ b/src/endianm.c
@@ -36,6 +36,19 @@ void read_i32_le(const void *ptr, i32 * buf)
 }
 
 /*
+ *      read_i32_be
+ *      Read a big-endian 32-bit signed integer from memory area
+ *      pointed to by <ptr>.
+ */
+void read_i32_be(const void *ptr, i32 * buf)
+{
+    *buf = ((i32) ((const unsigned char *) ptr)[0] << 24)
+        | ((i32) ((const unsigned char *) ptr)[1] << 16)
+        | ((u16) ((const unsigned char *) ptr)[2] << 8)
+        | (((const unsigned char *) ptr)[3]);
+}
+
+/*
  *      peek_i16_le
  *      Read a little-endian 16-bit signed integer from memory area
  *      pointed to by <ptr>.
diff --git a/src/endianm.h b/src/endianm.h
index 5ba56bf..01139d4 100644
--- a/src/endianm.h
+++ b/src/endianm.h
@@ -27,6 +27,7 @@
 
 void read_i16_le(const void *ptr, i16 * buf);
 void read_i32_le(const void *ptr, i32 * buf);
+void read_i32_be(const void *ptr, i32 * buf);
 i16 peek_i16_le(const void *ptr);
 u16 peek_u16_le(const void *ptr);
 i32 peek_i32_be(const void *ptr);
diff --git a/src/ident.c b/src/ident.c
index 0bb75b3..fa75775 100644
--- a/src/ident.c
+++ b/src/ident.c
@@ -55,6 +55,7 @@ static const struct {
     {"NODES",    1, 'n',   "n7"},
     {"POINTS",   1, 'a',   "a2"},  /* Doom alpha 0.4 and 0.5 only */
     {"REJECT",   1, 'n',   "n9"},  /* Not in Doom PR */
+    {"SCRIPTS",  0, 'n',  "n22"},
     {"SECTORS",  1, '?', "a4n8"},
     {"SEGS",     1, 'n',   "n5"},
     {"SIDEDEFS", 1, 'n',   "n3"},
@@ -63,6 +64,14 @@ static const struct {
     {"THINGS",   1, '?', "a5n1"},
     {"VERTEXES", 1, 'n',   "n4"},
     {"ZNODES",   0, 'n',  "n14"},  /* UDMF */
+    {"GL_VERT",  0, 'n',  "n16"},  /* GZDoom */
+    {"GL_SEGS",  0, 'n',  "n17"},  /* GZDoom */
+    {"GL_SSECT", 0, 'n',  "n18"},  /* GZDoom */
+    {"GL_NODES", 0, 'n',  "n19"},  /* GZDoom */
+    {"GL_PVS",   0, 'n',  "n20"},
+    {"GL_HEAD",  0, 'n',  "n21"},  /* GZDoom, not an actual lump, just
+                                      indicates a header */
+
 };
 
 static int IDENTlevelPartMax(void)
@@ -77,6 +86,13 @@ int IDENTlevelPart(const char *name)
         if (strncmp(Part[n].name, name, 8) == 0)
             return n;
     }
+    //If this is is a GL node header...
+    if (strncmp("GL_", name, 3) == 0) {
+        for (n = 1; n < sizeof Part / sizeof *Part; n++) {
+            if (strncmp(Part[n].name, "GL_HEAD", 7) == 0)
+                return n;
+        }
+    }
     return -1;
 }
 
@@ -697,7 +713,7 @@ static void IDENTdirLevels(ENTRY * ids, struct WADINFO *info)
     /* int wrong_order = 0; */
     const int part_num_max = IDENTlevelPartMax();
     int in_level = 0;
-    int lump_present[20];       /* Really sizeof Parts / sizeof *Parts */
+    int lump_present[sizeof Part / sizeof *Part];       /* Really sizeof Parts / sizeof *Parts */
     char level_format = '\0';   /* Initialised to avoid a warning */
     int n0 = 0;                 /* Initialised to avoid a warning */
 
@@ -797,7 +813,7 @@ ENTRY *IDENTentriesIWAD(struct WADINFO *info, char *Pnam, int32_t Pnamsz,
     /*
     **  Check if Strife's ENDSTRF lump is present
     */
-    if(WADRfindEntry(info, "ENDSTRF") >= 0) {
+    if (WADRfindEntry(info, "ENDSTRF") >= 0) {
         IDENTdirSscripts(ids, info);
     }
     if (Fast != true) {
@@ -842,7 +858,7 @@ ENTRY *IDENTentriesPWAD(struct WADINFO * info, char *Pnam, int32_t Pnamsz)
     /*
     **  Check if Strife's ENDSTRF lump is present
     */
-    if(WADRfindEntry(info, "ENDSTRF") >= 0) {
+    if (WADRfindEntry(info, "ENDSTRF") >= 0) {
         IDENTdirSscripts(ids, info);
     }
     IDENTdirSounds(ids, info, false);
diff --git a/src/picture.c b/src/picture.c
index 1451f64..4d755da 100644
--- a/src/picture.c
+++ b/src/picture.c
@@ -15,6 +15,7 @@
 #include <errno.h>
 #ifdef HAVE_LIBPNG
 #include <png.h>
+#include "png_tools.h"
 #endif
 
 #include "tools.h"
@@ -128,8 +129,9 @@ static void RAWtoGIF(char *file, char *raw, int16_t rawX, int16_t rawY,
                      struct PIXEL *doompal);
 #ifdef HAVE_LIBPNG
 static void RAWtoPNG(char *file, char *raw, int16_t rawX, int16_t rawY,
-                     struct PIXEL *doompal);
-static char *PNGtoRAW(int16_t * prawX, int16_t * prawY, char *file);
+                     struct PIXEL *doompal, int16_t Xinsr, int16_t Yinsr);
+static char *PNGtoRAW(int16_t * prawX, int16_t * prawY, char *file,
+                      int16_t * altXinsr, int16_t * altYinsr);
 #endif
 
 /*
@@ -247,7 +249,7 @@ bool PICsaveInFile(char *file, PICTYPE type, char *pic, int32_t picsz,
         switch (Picture) {
 #ifdef HAVE_LIBPNG
         case PICPNG:
-            RAWtoPNG(file, raw, rawX, rawY, doompal);
+            RAWtoPNG(file, raw, rawX, rawY, doompal, *pXinsr, *pYinsr);
             break;
 #endif
         case PICGIF:
@@ -288,7 +290,7 @@ int32_t PICsaveInWAD(struct WADINFO * info, char *file, PICTYPE type,
     char *pic = NULL;
     int32_t picsz = 0;          /* Initialise to placate GCC */
     char transparent;
-
+    int16_t altXinsr = 0, altYinsr = 0;
     /*
     ** convert BMP to RAW
     */
@@ -296,7 +298,14 @@ int32_t PICsaveInWAD(struct WADINFO * info, char *file, PICTYPE type,
     switch (Picture) {
 #ifdef HAVE_LIBPNG
     case PICPNG:
-        raw = PNGtoRAW(&rawX, &rawY, file);
+        raw = PNGtoRAW(&rawX, &rawY, file, &altXinsr, &altYinsr);
+        /* if the option to use png_offsets is set, use them */
+        if (use_png_offsets == true) {
+            if (altXinsr != INVALIDINT && altYinsr != INVALIDINT) {
+                Xinsr = altXinsr;
+                Yinsr = altYinsr;
+            }
+        }
         break;
 #endif
     case PICGIF:
@@ -315,7 +324,7 @@ int32_t PICsaveInWAD(struct WADINFO * info, char *file, PICTYPE type,
         ProgError("GB10", "%s: picture width < 1", fname(file));
     if (rawY < 1)
         ProgError("GB11", "%s: picture height < 1", fname(file));
-    /*max tallpic is 2048*/
+    /*max tallpic is 2048 */
     if (rawY > 2048)
         ProgError("GB13", "%s: picture height > 2048", fname(file));
     switch (type) {
@@ -419,10 +428,11 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
     /*offset of first column */
     colnbase = sizeof(struct PICHEAD) + ((int32_t) rawX) * sizeof(int32_t);
     /* worst expansion when converting from PIXEL column to
-    ** list of sets: (5*Ysize/2)+(Y/254*8), corresponding to a dotted vertical
+    ** list of sets: (5*Ysize/2)+(Y/254*8) + 5, corresponding to a dotted vertical
     ** transparent line with tallpic posts.
     */
-    int32_t worst_case = (int32_t) (5 * ((rawY + 1) / 2) + ((rawY / 254) * 8 ));
+    int32_t worst_case =
+        (int32_t) (5 * ((rawY + 1) / 2) + ((rawY / 254) * 8) + 5);
     picsz = colnbase + ((int32_t) rawX) * worst_case;
 
     pic = (char *) Malloc(picsz);
@@ -473,7 +483,7 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
            1 [n# of pixels]
            2 [dummy]
            etc.
-        */
+         */
         is_tall_pic_post_header = false;
         is_first_254 = true;
         number_of_pix_index = 1;
@@ -483,34 +493,34 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
         for (y = 0; y < rawY; y++) {    /*get column pixel */
             rawpos = ((int32_t) x) + ((int32_t) rawX) * ((int32_t) y);
             pix = raw[rawpos];
-            /*if this is a picture that has a height of >=256, make tallpic post.*/
+            /*if this is a picture that has a height of >=256, make tallpic post. */
             if (((y == 254) ||
-                (y > 254 && setcount == 254) ||
-                (y > 254 && rowpos >= 254 && lastpix == transparent))
-                 && rawY > 255 ) {
+                 (y > 254 && setcount == 254) ||
+                 (y > 254 && rowpos >= 254 && lastpix == transparent))
+                && rawY > 255) {
                 is_tall_pic_post_header = true;
                 is_first_254 = false;
                 /*finish the current set, if any */
                 if (lastpix != transparent) {
                     Set[number_of_pix_index] = setcount;
                     Set[first_pix_index + setcount] = lastpix;
-                    setpos += first_pix_index + setcount + 1; /*1pos,1cnt,1dmy,setcount pixels,1dmy */
+                    setpos += first_pix_index + setcount + 1;   /*1pos,1cnt,1dmy,setcount pixels,1dmy */
                 }
                 Set = (char *) &(pic[colnpos + setpos]);
-                rowpos = 0; //reset row position for subsequent posts after this one.
+                rowpos = 0;     //reset row position for subsequent posts after this one.
                 setcount = 0;
                 number_of_pix_index = 5;
                 first_pix_index = 7;
 
-                /*start new tallpic post*/
+                /*start new tallpic post */
                 Set[0] = 254;
                 Set[1] = 0;
                 Set[2] = 0;
                 Set[3] = 0;
-                Set[4] = 0; /*number of transparent pixels between this post and next*/
-                Set[5] = 0; /*count (updated later) */
+                Set[4] = 0;     /*number of transparent pixels between this post and next */
+                Set[5] = 0;     /*count (updated later) */
                 if (pix != transparent)
-                    Set[6] = pix; //dummy
+                    Set[6] = pix;       //dummy
                 else
                     Set[6] = 0; //dummy
             }
@@ -519,24 +529,25 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
                 if (is_tall_pic_post_header) {
                     //We are done making the tallpic post header.
                     is_tall_pic_post_header = false;
-                    lastpix = pix; //we DO NOT want to start a new post.
+                    lastpix = pix;      //we DO NOT want to start a new post.
                 }
                 /* End current post and start new one if more than
                    128 consecutive non-transparent pixels AND picture
                    is less than 256 pixels tall
-                */
-                if (setcount == 128 && rawY < 256 && lastpix != transparent) {
+                 */
+                if (setcount == 128 && rawY < 256
+                    && lastpix != transparent) {
                     Set[1] = setcount;
-                    Set[3 + setcount] = lastpix; //dummy
+                    Set[3 + setcount] = lastpix;        //dummy
                     setpos += 3 + setcount + 1;
-                    lastpix = transparent; //start a new post
+                    lastpix = transparent;      //start a new post
                 }
                 if (lastpix == transparent) {   /* begining of post */
                     Set = (char *) &(pic[colnpos + setpos]);
                     setcount = 0;
                     number_of_pix_index = 1;
                     first_pix_index = 3;
-                    Set[0] = rowpos; /* y position */
+                    Set[0] = rowpos;    /* y position */
                     Set[1] = 0; /*count (updated later) */
                     Set[2] = pix;       /*unused */
                     if (!is_first_254) {
@@ -544,17 +555,16 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
                         rowpos = 0;
                     }
                 }
-                Set[first_pix_index + setcount] = pix;        /*non transparent pixel */
+                Set[first_pix_index + setcount] = pix;  /*non transparent pixel */
                 setcount++;     /*update count of pixel in set */
             } else {            /*pix is transparent */
-                if (is_tall_pic_post_header){
-                    Set[4] += 1; //increase transparent pixel count in tallpic post header
-                    rowpos = -1; //keep resetting rowpos until we get a non-transparent pixel
-                }
-                else if (lastpix != transparent) {   /*finish the current set */
+                if (is_tall_pic_post_header) {
+                    Set[4] += 1;        //increase transparent pixel count in tallpic post header
+                    rowpos = -1;        //keep resetting rowpos until we get a non-transparent pixel
+                } else if (lastpix != transparent) {    /*finish the current set */
                     Set[number_of_pix_index] = setcount;
-                    Set[first_pix_index + setcount] = lastpix; //dummy
-                    setpos += first_pix_index + setcount + 1; /*1pos,1cnt,1dmy,setcount pixels,1dmy */
+                    Set[first_pix_index + setcount] = lastpix;  //dummy
+                    setpos += first_pix_index + setcount + 1;   /*1pos,1cnt,1dmy,setcount pixels,1dmy */
                 }
 
                 /*else: not in set but in transparent area */
@@ -564,23 +574,23 @@ static char *RAWtoPIC(int32_t * ppicsz, char *raw, int16_t rawX,
         }
         if (lastpix != transparent) {   /*finish current set, if any */
             Set[number_of_pix_index] = setcount;
-            Set[first_pix_index + setcount] = lastpix; //dummy
-            setpos += first_pix_index + setcount + 1; /*1pos,1cnt,1dmy,setcount pixels,1dmy */
+            Set[first_pix_index + setcount] = lastpix;  //dummy
+            setpos += first_pix_index + setcount + 1;   /*1pos,1cnt,1dmy,setcount pixels,1dmy */
         }
         /*If we've reached the end of the column and we're still in the tallpic header,
-          end the post at offset 4.*/
+           end the post at offset 4. */
         if (is_tall_pic_post_header) {
             Set[4] = (char) 0xFF;
             setpos += 4;
         } else {
             //otherwise, end it normally.
-            pic[colnpos + setpos] = (char) 0xFF;    /*end of all sets */
+            pic[colnpos + setpos] = (char) 0xFF;        /*end of all sets */
         }
         colnpos += (int32_t) (setpos + 1);      /*position of next column */
     }
     /*picsz was an overestimated size for PIC */
     pic = (char *) Realloc(pic, colnpos);
-    *ppicsz = colnpos; /*real size of PIC */
+    *ppicsz = colnpos;          /*real size of PIC */
     return pic;
 }
 
@@ -637,12 +647,12 @@ static char *PICtoRAW(int16_t * prawX, int16_t * prawY, int16_t * pXinsr,
     /* Read all columns, post by post */
     /* allocate raw. (care: free it if error, before exit) */
     /*Warning ("XX99", "%s: %d x %d",
-      lump_name (name), (int) h.width, (int) h.height); */
+       lump_name (name), (int) h.width, (int) h.height); */
     rawsz = (long) h.width * h.height;
     raw = (char *) Malloc(rawsz);
     Memset(raw, transparent, rawsz);
     for (x = 0; x < h.width; x++) {
-        const unsigned char *post = NULL;  // Initialised to avoid a warning
+        const unsigned char *post = NULL;       // Initialised to avoid a warning
         if (h.colofs_size == 4) {
             int32_t ofs;
             read_i32_le(((const int32_t *) offsets) + x, &ofs);
@@ -691,21 +701,20 @@ static char *PICtoRAW(int16_t * prawX, int16_t * prawY, int16_t * pXinsr,
             /* Read the header of the post */
             if (*post == 0xff)
                 break;          /* Last post */
-            else if (*post == 0xfe) { //If this is a tallpic post
+            else if (*post == 0xfe) {   //If this is a tallpic post
                 is_first_254 = false;
                 y = *post;
                 y += realY;
                 post = &post[4];
-                if (*post == 0xff) //last post
+                if (*post == 0xff)      //last post
                     break;
-                y += *post++; //read transparent pixel count, go to count
+                y += *post++;   //read transparent pixel count, go to count
                 post_length = *post++;
                 realY = y;
-            }
-            else{
+            } else {
                 y = *post++;
                 post_length = *post++;
-                if (is_first_254 == false) { //if we are in relative offset mode
+                if (is_first_254 == false) {    //if we are in relative offset mode
                     y += realY;
                     realY = y;
                 }
@@ -740,7 +749,7 @@ static char *PICtoRAW(int16_t * prawX, int16_t * prawY, int16_t * pXinsr,
             if (h.dummy_bytes)
                 post++;
         }
-    done_with_column:
+      done_with_column:
         ;
     }
 
@@ -818,7 +827,7 @@ struct BMPHEAD {
     int32_t bmplen;             /*02 total file length  Size */
     int32_t reserved;           /*06 void Reserved1 Reserved2 */
     int32_t startpix;           /*0A start of pixels   OffBits */
-    /*bitmap core header*/
+    /*bitmap core header */
     int32_t headsz;             /*0E Size =nb of bits in bc header */
     int32_t szx;                /*12 X size = width     int16_t width */
     int32_t szy;                /*16 Y size = height    int16_t height */
@@ -831,7 +840,7 @@ struct BMPHEAD {
     int32_t ColorUsed;          /*2C ClrUsed       nb of colors in palette */
     int32_t ColorImp;           /*32 ClrImportant   nb of important colors in palette */
     /*palette pos: ((uint8_t *)&headsz) + headsz */
-    /*palette size = 4*nb of colors. order is Blue Green Red (Black? always0)*/
+    /*palette size = 4*nb of colors. order is Blue Green Red (Black? always0) */
     /*bmp line size is xsize*bytes_per_pixel aligned on int32_t */
     /*pixlen = ysize * line size */
 };
@@ -860,8 +869,8 @@ static char *BMPtoRAW(int16_t * prawX, int16_t * prawY, char *file)
     FILE *fd;
     char sig[2];
     /*
-    ** read BMP header for size
-    */
+     ** read BMP header for size
+     */
 
     fd = fopen(file, FOPEN_RB);
     if (fd == NULL)
@@ -875,8 +884,8 @@ static char *BMPtoRAW(int16_t * prawX, int16_t * prawY, char *file)
     if (fread(head, sizeof(struct BMPHEAD), 1, fd) != 1)
         ProgError("BR13", "%s: read error in header", fname(file));
     /*
-    ** check the BMP header
-    */
+     ** check the BMP header
+     */
     if (peek_i32_le(&head->compress) != 0)
         ProgError("BR14", "%s: not an RGB BMP", fname(file));
     read_i32_le(&head->startpix, &startpix);
@@ -888,12 +897,12 @@ static char *BMPtoRAW(int16_t * prawX, int16_t * prawY, char *file)
         ProgError("BR16", "%s: bad height", fname(file));
     ncols = peek_i32_le(&head->ColorUsed);
     /*
-    ** Allocate memory for raw bytes
-    */
+     ** Allocate memory for raw bytes
+     */
     raw = (char *) Malloc(((int32_t) szx) * ((int32_t) szy));
     /*
-    ** Determine line size and palet (if needed)
-    */
+     ** Determine line size and palet (if needed)
+     */
     nbits = (int16_t) ((peek_i32_le(&head->planebits) >> 16) & 0xFFFFL);
     switch (nbits) {
     case 24:
@@ -1021,9 +1030,9 @@ static void RAWtoBMP(char *file, char *raw, int16_t rawX, int16_t rawY,
         ProgError("BW12", "%s: write error", fname(file));
     free(head);
     /*
-    ** set palette
-    **
-    */
+     ** set palette
+     **
+     */
     palet = (struct BMPPALET *) Malloc(paletsz);
     for (x = 0; x < ncol; x++) {
         palet[x].R = doompal[x].R;
@@ -1035,9 +1044,9 @@ static void RAWtoBMP(char *file, char *raw, int16_t rawX, int16_t rawY,
         ProgError("BW13", "%s: write error", fname(file));
     free(palet);
     /*
-    ** set data
-    **
-    */
+     ** set data
+     **
+     */
     bmpidxs = (uint8_t *) Malloc(linesz);
     for (y = rawY - 1; y >= 0; y--) {
         for (x = 0; x < rawX; x++) {
@@ -1176,13 +1185,15 @@ static char *PPMtoRAW(int16_t * prawX, int16_t * prawY, char *file)
 }
 
 #ifdef HAVE_LIBPNG
-static char *PNGtoRAW(int16_t * rawX, int16_t * rawY, char *file)
+static char *PNGtoRAW(int16_t * rawX, int16_t * rawY, char *file,
+                      int16_t * altXinsr, int16_t * altYinsr)
 {
     char *raw;
     int i;
     png_image image;
     memset(&image, 0, (sizeof image));
     image.version = PNG_IMAGE_VERSION;
+    read_grAb(file, altXinsr, altYinsr);
     if (png_image_begin_read_from_file(&image, file)) {
         png_bytep buffer;
         image.format = PNG_FORMAT_RGBA;
@@ -1212,12 +1223,13 @@ static char *PNGtoRAW(int16_t * rawX, int16_t * rawY, char *file)
             return raw;
         } else {
             ProgError("GR33", "libPNG decoding error");
+            return NULL;
         }
     }
 }
 
 static void RAWtoPNG(char *file, char *raw, int16_t rawX, int16_t rawY,
-                     struct PIXEL *doompal)
+                     struct PIXEL *doompal, int16_t Xinsr, int16_t Yinsr)
 {
     int i;
     png_image image;
@@ -1247,6 +1259,10 @@ static void RAWtoPNG(char *file, char *raw, int16_t rawX, int16_t rawY,
     }
     if (!png_image_write_to_file(&image, file, 0, raw, 0, colormap)) {
         ProgError("GR34", "libPNG encoding error");
+    } else {
+        if (Xinsr != INVALIDINT && Yinsr != INVALIDINT &&
+            Xinsr != 0 && Yinsr != 0)
+            write_grAb(file, Xinsr, Yinsr);
     }
     free(colormap);
 }
@@ -1258,7 +1274,7 @@ static struct {
     uint16_t InputFlag;
     uint16_t Disposal;
 } Gif89 = {
-    -1, -1, -1, 0};
+-1, -1, -1, 0};
 
 static struct {
     int16_t Width;
@@ -1323,8 +1339,8 @@ static char *GIFtoRAW(int16_t * rawX, int16_t * rawY, char *file)
         ProgError("GR10", "%s: %s", fname(file), strerror(errno));
     decompressInit();
     /*
-    ** screen descriptor
-    */
+     ** screen descriptor
+     */
     if (fread(GifIdent, 6, 1, fd) != 1) {
         fclose(fd);
         ProgError("GR11", "%s: read error in GIF magic", fname(file));
@@ -1335,9 +1351,9 @@ static char *GIFtoRAW(int16_t * rawX, int16_t * rawY, char *file)
     }
     if (fread_i16_le(fd, &GifHead.xsize)
         || fread_i16_le(fd, &GifHead.ysize)
-        || (chr = fgetc(fd), GifHead.info = chr, chr == EOF)       // Training
-        ||(chr = fgetc(fd), GifHead.backgnd = chr, chr == EOF)     // for the
-        ||(chr = fgetc(fd), GifHead.aspratio = chr, chr == EOF)) { // IOCCC
+        || (chr = fgetc(fd), GifHead.info = chr, chr == EOF)    // Training
+        || (chr = fgetc(fd), GifHead.backgnd = chr, chr == EOF) // for the
+        || (chr = fgetc(fd), GifHead.aspratio = chr, chr == EOF)) {     // IOCCC
         fclose(fd);
         ProgError("GR13", "%s: read error in GIF header", fname(file));
     }
@@ -1356,8 +1372,8 @@ static char *GIFtoRAW(int16_t * rawX, int16_t * rawY, char *file)
         }
     }
     /*
-    ** Read extension, images, etc...
-    */
+     ** Read extension, images, etc...
+     */
     while ((c = getc(fd)) != EOF) {
         if (c == ';')
             break;              /* GIF terminator */
@@ -1395,8 +1411,8 @@ static char *GIFtoRAW(int16_t * rawX, int16_t * rawY, char *file)
                 }
             }
             /*read the GIF. if many pictures, only the last
-              one is kept.
-            */
+               one is kept.
+             */
             raw = GIFreadPix(fd, Xsz, Ysz);
         }
         /*else, not a valid start character, skip to next */
@@ -1482,8 +1498,8 @@ static char *GIFreadPix(FILE * fd, int16_t Xsz, int16_t Ysz)
     unsigned char c = 0;
 
     /*
-    ** get some space
-    */
+     ** get some space
+     */
     rawSz = ((int32_t) Xsz) * ((int32_t) Ysz);
     raw = (char *) Malloc(rawSz);
     /* Initialize the Compression routines */
diff --git a/src/png_tools.c b/src/png_tools.c
new file mode 100644
index 0000000..808b916
--- /dev/null
+++ b/src/png_tools.c
@@ -0,0 +1,159 @@
+/*
+  This file is Copyright © 2017 contributors to the DeuTex project.
+
+  SPDX-License-Identifier: GPL-2.0+
+*/
+
+/*
+  This is a quick-and-dirty hack to read/write the grAb chunk from a
+  png file A grAb chunk is a custom PNG chunk that zdoom and SLADE
+  uses to store the offset of the image.
+*/
+
+#include "deutex.h"
+#include "tools.h"
+#include "png_tools.h"
+#include "endianm.h"
+
+uint32_t gen_grAb_crc(unsigned char *buf)
+{
+    uint32_t crc = 0xffffffff;
+    uint32_t crc_table[256];
+    uint32_t c;
+    int32_t n, k;
+    for (n = 0; n < 256; n++) {
+        c = (uint32_t) n;
+        for (k = 0; k < 8; k++) {
+            if (c & 1)
+                c = ((uint32_t) 0xedb88320) ^ (c >> 1);
+            else
+                c = c >> 1;
+        }
+        crc_table[n] = c;
+    }
+    for (n = 0; n < 12; n++)
+        crc = crc_table[(crc ^ buf[n]) & 0xff] ^ (crc >> 8);
+    return crc ^ ((uint32_t) 0xffffffff);
+}
+
+unsigned char *read_whole_image(char *file, long *sz)
+{
+    FILE *fd;
+    unsigned char *buffer;
+    size_t result;
+    fd = fopen(file, FOPEN_RB);
+    if (fd == NULL) {
+        ProgError("XX16", "PNG image read error");
+        return NULL;
+    }
+    fseek(fd, 0L, SEEK_END);
+    *sz = ftell(fd);
+    rewind(fd);
+    buffer = malloc(sizeof(unsigned char) * (*sz));
+    result = fread(buffer, 1, *sz, fd);
+    if (result != *sz) {
+        ProgError("XX12", "PNG image read error");
+        *sz = 0;
+        return NULL;
+    }
+    fclose(fd);
+    return buffer;
+}
+
+bool read_grAb_chunk(unsigned char *buffer, long sz, int32_t * xofs,
+                     int32_t * yofs, long *grabpos)
+{
+    long i;
+    bool is_grab = false;
+    if (buffer == NULL)
+        return false;
+    for (i = 4; i < sz; i++) {
+        if (buffer[i] == 'I' && buffer[i + 1] == 'D' &&
+            buffer[i + 2] == 'A' && buffer[i + 3] == 'T') {
+            break;
+        }
+        if (buffer[i] == 'g' && buffer[i + 1] == 'r' &&
+            buffer[i + 2] == 'A' && buffer[i + 3] == 'b') {
+            i += 4;
+            if (i < sz) {
+                read_i32_be(buffer + i, xofs);
+                i += 4;
+                if (i < sz) {
+                    read_i32_be(buffer + i, yofs);
+                    *grabpos = i - 8;
+                    is_grab = true;
+                } else {
+                    ProgError("XX23", "read_grAb_chunk error");
+                }
+            } else {
+                ProgError("XX22", "read_grAb_chunk error");
+            }
+        }
+    }
+    return is_grab;
+}
+
+void read_grAb(char *file, int16_t * Xinsr, int16_t * Yinsr)
+{
+    long sz = 0;
+    long IDATpos = 0;
+    unsigned char *buffer = read_whole_image(file, &sz);
+    if (buffer == NULL)
+        return;
+    long grabpos = 0;
+    int32_t xofs = 0;
+    int32_t yofs = 0;
+    if (read_grAb_chunk(buffer, sz, &xofs, &yofs, &grabpos)) {
+        *Xinsr = (int16_t) xofs;
+        *Yinsr = (int16_t) yofs;
+    } else {
+        *Xinsr = INVALIDINT;
+        *Yinsr = INVALIDINT;
+    }
+    free(buffer);
+}
+
+//To be called after the PNG is already written.
+void write_grAb(char *file, int16_t Xinsr, int16_t Yinsr)
+{
+    long sz = 0;
+    FILE *fd;
+    long grabpos = 33;
+    long index = 0;
+    long IDATpos = 0;
+    int32_t grabsz = 0;
+    int32_t xofs = 0;
+    int32_t yofs = 0;
+    int32_t crc = 0;
+    unsigned char grab_chunk[20];
+    bool grab_exists;
+    unsigned char *buffer = read_whole_image(file, &sz);
+    //create grAb Chunk
+    //size of chunk
+    write_i32_be(grab_chunk, 8);
+    //name of chunk
+    strncpy((char *) grab_chunk + 4, "grAb", 4);
+    //xoffset
+    write_i32_be(grab_chunk + 8, (int32_t) Xinsr);
+    //yoffset
+    write_i32_be(grab_chunk + 12, (int32_t) Yinsr);
+    crc = gen_grAb_crc(grab_chunk + 4);
+    //crc
+    write_i32_be(grab_chunk + 16, crc);
+    if (buffer == NULL)
+        return;
+    grab_exists = read_grAb_chunk(buffer, sz, &xofs, &yofs, &grabpos);
+    fd = fopen(file, FOPEN_WB);
+    if (fd == NULL) {
+        ProgError("XX75", "write_grAb error");
+    }
+    fwrite(buffer, sizeof(unsigned char), grabpos, fd);
+    fwrite(grab_chunk, sizeof(char), 20, fd);
+    if (!grab_exists)
+        index = grabpos;
+    else
+        index = grabpos + 20;
+    fwrite(buffer + index, sizeof(unsigned char), sz - index, fd);
+    fclose(fd);
+    free(buffer);
+}
diff --git a/src/png_tools.h b/src/png_tools.h
new file mode 100644
index 0000000..aaaaa14
--- /dev/null
+++ b/src/png_tools.h
@@ -0,0 +1,19 @@
+/*
+  This file is Copyright © 2017 contributors to the DeuTex project.
+
+  SPDX-License-Identifier: GPL-2.0+
+*/
+
+#ifndef PNG_TOOLS_H
+#define PNG_TOOLS_H
+
+#include "deutex.h"
+
+uint32_t gen_grAb_crc(unsigned char *buf);
+unsigned char *read_whole_image(char *file, long *sz);
+bool read_grAb_chunk(unsigned char *buffer, long sz, int32_t * xofs,
+                     int32_t * yofs, long *grabpos);
+void read_grAb(char *file, int16_t * Xinsr, int16_t * Yinsr);
+void write_grAb(char *file, int16_t Xinsr, int16_t Yinsr);
+
+#endif
diff --git a/src/sound.c b/src/sound.c
index a16c056..02f91aa 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -112,7 +112,7 @@ char *SNDloadWaveFile(char *file, int32_t * psize, int32_t * pspeed)
     }
     fseek(fp, chunk, SEEK_SET);
     if (fread(&headf, sizeof(struct WAVEFMT), 1, fp) == 1) {
-        Info("RR01", "%s is a WAVE file", fname(file));
+        Detail("RR01", "%s is a WAVE file", fname(file));
     } else {
         ProgError("RR02", "%s is not a WAVE file", fname(file));
     }
diff --git a/src/tools.h b/src/tools.h
index fcb5404..6b705a8 100644
--- a/src/tools.h
+++ b/src/tools.h
@@ -8,6 +8,8 @@
 
   SPDX-License-Identifier: GPL-2.0+
 */
+#ifndef TOOLS_H
+#define TOOLS_H
 
 #define MSGCLASS_INFO 'i'
 #define MSGCLASS_WARN 'w'
@@ -57,3 +59,5 @@ void Normalise(char dest[8], const char *src);
 
 void Progress(void);
 void ProgressEnds(void);
+
+#endif //TOOLS_H
\ No newline at end of file

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-games/deutex.git



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