debian: updated using https://salsa.debian.org/debian/zint as

template, props Dmitry Smirnov (ticket #147, props John Crisp);
  TODO: enable building with the GS1 Syntax Engine;
  this involved auditing copyrights which prompted the next item
  re "tif.c" and will prompt the next next item "pdf417.c"
tif.c: replaced LZW compression with tree-based one due to
  "tif_lzw.h"'s original BSD-TAHOE license which has the equivalent
  of the "advertising clause", new implementation (which is much
  faster anyway) props Harald Kuhr and Bob Montgomery
pdf417.c: TODO: Replace all code adapted from "pdf417.frm" as it
  was released under GPL v2.0 or later
pdf417.h: replace unnecessary "pdf417.frm" references with ISO/IEC
  standard as 1st step re above, some expanded comments
general: Codablock-F -> Codablock F (i.e. lose hyphen)
cmake: frontend/frontend_qt: go back to only setting RPATH on macOS
  as not Debian compatible and it seems it's not a good idea on
  Linux anyway; TODO: check BSD + other Unixes
CLI/GUI: make "--verbose" option official and document
tools/gen_eci_sb_h.php/gen_eci_mb_h.php: add SPDX Unicode-3.0;
  update haible.de/bruno tarball info - "GB18030.TXT" no longer in
  "jdk-1.4.2/" so mention "libiconv-1.11/" version instead (same)
general: add various SPDXs and normalize some Copyrights
reedsol.c: malloced `logt`/`alog` tables int -> short (slight
  performance improvement)
aztec.c: add copyrights, some code fiddling
BWIPP: update to latest

docs/zint-qt.1.pmd

@@ -0,0 +1,55 @@
+% ZINT-QT(1) Version 2.16.0.9
+%
+% March 2026
+
+[//]: # ( vim: set ts=4 sw=4 et : )
+
+# NAME
+
+`zint-qt` - Zint Barcode Studio, a Qt frontend to the Zint Barcode Generator
+
+# SYNOPSIS
+
+| `zint-qt` [`--verbose`]
+
+# DESCRIPTION
+
+zint-qt encodes input data in a barcode which can then be saved to an image file or to the clipboard.
+
+Input data is UTF-8, unless the "Binary Mode" checkbox is checked.
+
+Output may be in one of these formats: Windows Bitmap (`BMP`), Enhanced Metafile Format (`EMF`), Encapsulated
+PostScript (`EPS`), Graphics Interchange Format (`GIF`), ZSoft Paintbrush (`PCX`), Portable Network Format (`PNG`),
+Scalable Vector Graphic (`SVG`), or Tagged Image File Format (`TIF`).
+
+# OPTIONS
+
+`--verbose`
+
+:   Output debug information to stdout.
+
+# EXIT STATUS
+
+`0`
+
+# BUGS
+
+Please send bug reports to https://sourceforge.net/p/zint/tickets/.
+
+# SEE ALSO
+
+Documentation for `zint-qt` (and the API `libzint` and the CLI `zint`) is available from
+
+        https://zint.org.uk/manual/
+
+and at
+
+        https://sourceforge.net/p/zint/docs/manual.txt
+
+# COPYRIGHT
+
+Copyright © 2026 Robin Stuart. Released under GNU GPL 3.0 or later.
+
+# AUTHOR
+
+Robin Stuart <robin@zint.org.uk>