--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/zint/backend_tcl/configure.ac	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,241 @@
+#!/bin/bash -norc
+dnl	This file is an input file used by the GNU "autoconf" program to
+dnl	generate the file "configure", which is run during Tcl installation
+dnl	to configure the system for the local environment.
+
+#-----------------------------------------------------------------------
+# Sample configure.ac for Tcl Extensions.  The only places you should
+# need to modify this file are marked by the string __CHANGE__
+#-----------------------------------------------------------------------
+
+#-----------------------------------------------------------------------
+# __CHANGE__
+# Set your package name and version numbers here.
+#
+# This initializes the environment with PACKAGE_NAME and PACKAGE_VERSION
+# set as provided.  These will also be added as -D defs in your Makefile
+# so you can encode the package version directly into the source files.
+# This will also define a special symbol for Windows (BUILD_<PACKAGE_NAME>
+# so that we create the export library with the dll.
+#-----------------------------------------------------------------------
+
+AC_INIT([zint],[2.13.0])
+
+#--------------------------------------------------------------------
+# Call TEA_INIT as the first TEA_ macro to set up initial vars.
+# This will define a ${TEA_PLATFORM} variable == "unix" or "windows"
+# as well as PKG_LIB_FILE and PKG_STUB_LIB_FILE.
+#--------------------------------------------------------------------
+
+TEA_INIT()
+
+AC_CONFIG_AUX_DIR(tclconfig)
+
+#--------------------------------------------------------------------
+# Load the tclConfig.sh file
+#--------------------------------------------------------------------
+
+TEA_PATH_TCLCONFIG
+TEA_LOAD_TCLCONFIG
+
+#--------------------------------------------------------------------
+# Load the tkConfig.sh file if necessary (Tk extension)
+#--------------------------------------------------------------------
+
+#TEA_PATH_TKCONFIG
+#TEA_LOAD_TKCONFIG
+
+#-----------------------------------------------------------------------
+# Handle the --prefix=... option by defaulting to what Tcl gave.
+# Must be called after TEA_LOAD_TCLCONFIG and before TEA_SETUP_COMPILER.
+#-----------------------------------------------------------------------
+
+TEA_PREFIX
+
+#-----------------------------------------------------------------------
+# Standard compiler checks.
+# This sets up CC by using the CC env var, or looks for gcc otherwise.
+# This also calls AC_PROG_CC and a few others to create the basic setup
+# necessary to compile executables.
+#-----------------------------------------------------------------------
+
+TEA_SETUP_COMPILER
+
+#-----------------------------------------------------------------------
+# __CHANGE__
+# Specify the C source files to compile in TEA_ADD_SOURCES,
+# public headers that need to be installed in TEA_ADD_HEADERS,
+# stub library C source files to compile in TEA_ADD_STUB_SOURCES,
+# and runtime Tcl library files in TEA_ADD_TCL_SOURCES.
+# This defines PKG(_STUB)_SOURCES, PKG(_STUB)_OBJECTS, PKG_HEADERS
+# and PKG_TCL_SOURCES.
+#-----------------------------------------------------------------------
+
+TEA_ADD_SOURCES([
+	../backend/2of5.c
+	../backend/auspost.c
+	../backend/aztec.c
+	../backend/bc412.c
+	../backend/bmp.c
+	../backend/codablock.c
+	../backend/code128.c
+	../backend/code16k.c
+	../backend/code1.c
+	../backend/code49.c
+	../backend/code.c
+	../backend/common.c
+	../backend/composite.c
+	../backend/dllversion.c
+	../backend/dmatrix.c
+	../backend/dotcode.c
+	../backend/dxfilmedge.c
+	../backend/eci.c
+	../backend/emf.c
+	../backend/filemem.c
+	../backend/general_field.c
+	../backend/gif.c
+	../backend/gridmtx.c
+	../backend/gs1.c
+	../backend/hanxin.c
+	../backend/imail.c
+	../backend/large.c
+	../backend/library.c
+	../backend/mailmark.c
+	../backend/maxicode.c
+	../backend/medical.c
+	../backend/output.c
+	../backend/pcx.c
+	../backend/pdf417.c
+	../backend/plessey.c
+	../backend/png.c
+	../backend/postal.c
+	../backend/ps.c
+	../backend/qr.c
+	../backend/raster.c
+	../backend/reedsol.c
+	../backend/rss.c
+	../backend/svg.c
+	../backend/telepen.c
+	../backend/tif.c
+	../backend/ultra.c
+	../backend/upcean.c
+	../backend/vector.c
+	zint.c
+])
+TEA_ADD_HEADERS([])
+TEA_ADD_INCLUDES([])
+TEA_ADD_LIBS()
+TEA_ADD_CFLAGS([-I../backend -DZINT_NO_PNG=1 -DZINT_VERSION=PACKAGE_VERSION])
+TEA_ADD_STUB_SOURCES([])
+TEA_ADD_TCL_SOURCES([demo/demo.tcl])
+
+#--------------------------------------------------------------------
+# __CHANGE__
+#
+# You can add more files to clean if your extension creates any extra
+# files by extending CLEANFILES.
+# Add pkgIndex.tcl if it is generated in the Makefile instead of ./configure
+# and change Makefile.in to move it from CONFIG_CLEAN_FILES to BINARIES var.
+#
+# A few miscellaneous platform-specific items:
+# TEA_ADD_* any platform specific compiler/build info here.
+#--------------------------------------------------------------------
+
+#CLEANFILES="$CLEANFILES pkgIndex.tcl"
+if test "${TEA_PLATFORM}" = "windows" ; then
+    # Ensure no empty if clauses
+    :
+    #TEA_ADD_SOURCES([win/winFile.c])
+    #TEA_ADD_INCLUDES([-I\"$(${CYGPATH} ${srcdir}/win)\"])
+else
+    # Ensure no empty else clauses
+    :
+    #TEA_ADD_SOURCES([unix/unixFile.c])
+    TEA_ADD_LIBS()
+fi
+
+#--------------------------------------------------------------------
+# __CHANGE__
+# Choose which headers you need.  Extension authors should try very
+# hard to only rely on the Tcl public header files.  Internal headers
+# contain private data structures and are subject to change without
+# notice.
+# This MUST be called after TEA_LOAD_TCLCONFIG / TEA_LOAD_TKCONFIG
+#--------------------------------------------------------------------
+
+TEA_PUBLIC_TCL_HEADERS
+#TEA_PRIVATE_TCL_HEADERS
+
+#TEA_PUBLIC_TK_HEADERS
+#TEA_PRIVATE_TK_HEADERS
+#TEA_PATH_X
+
+#--------------------------------------------------------------------
+# Check whether --enable-threads or --disable-threads was given.
+# This auto-enables if Tcl was compiled threaded.
+#--------------------------------------------------------------------
+
+TEA_ENABLE_THREADS
+
+#--------------------------------------------------------------------
+# The statement below defines a collection of symbols related to
+# building as a shared library instead of a static library.
+#--------------------------------------------------------------------
+
+TEA_ENABLE_SHARED
+
+#--------------------------------------------------------------------
+# This macro figures out what flags to use with the compiler/linker
+# when building shared/static debug/optimized objects.  This information
+# can be taken from the tclConfig.sh file, but this figures it all out.
+#--------------------------------------------------------------------
+
+TEA_CONFIG_CFLAGS
+
+#--------------------------------------------------------------------
+# Set the default compiler switches based on the --enable-symbols option.
+#--------------------------------------------------------------------
+
+TEA_ENABLE_SYMBOLS
+
+#--------------------------------------------------------------------
+# This macro generates a line to use when building a library.  It
+# depends on values set by the TEA_ENABLE_SHARED, TEA_ENABLE_SYMBOLS,
+# and TEA_LOAD_TCLCONFIG macros above.
+#--------------------------------------------------------------------
+
+TEA_MAKE_LIB
+
+#--------------------------------------------------------------------
+# Determine the name of the tclsh and/or wish executables in the
+# Tcl and Tk build directories or the location they were installed
+# into. These paths are used to support running test cases only,
+# the Makefile should not be making use of these paths to generate
+# a pkgIndex.tcl file or anything else at extension build time.
+#--------------------------------------------------------------------
+
+TEA_PROG_TCLSH
+#TEA_PROG_WISH
+
+#--------------------------------------------------------------------
+# Setup a *Config.sh.in configuration file.
+#--------------------------------------------------------------------
+
+#TEA_EXPORT_CONFIG([sample])
+#AC_SUBST(SAMPLE_VAR)
+
+#--------------------------------------------------------------------
+# Specify files to substitute AC variables in. You may alternatively
+# have a special pkgIndex.tcl.in or other files which require
+# substituting the AC variables in. Include these here.
+#--------------------------------------------------------------------
+
+AC_CONFIG_FILES([Makefile pkgIndex.tcl])
+#AC_CONFIG_FILES([sampleConfig.sh])
+
+#--------------------------------------------------------------------
+# Finally, substitute all of the various values into the files
+# specified with AC_CONFIG_FILES.
+#--------------------------------------------------------------------
+
+AC_OUTPUT