--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/harfbuzz/configure.ac	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,486 @@
+AC_PREREQ([2.64])
+AC_INIT([HarfBuzz],
+        [6.0.0],
+        [https://github.com/harfbuzz/harfbuzz/issues/new],
+        [harfbuzz],
+        [http://harfbuzz.org/])
+
+AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_SRCDIR([src/harfbuzz.pc.in])
+AC_CONFIG_HEADERS([config.h])
+
+AM_INIT_AUTOMAKE([1.13.0 gnits tar-ustar dist-xz no-dist-gzip -Wall no-define color-tests -Wno-portability])
+AM_SILENT_RULES([yes])
+AX_CODE_COVERAGE
+
+# Initialize libtool
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+LT_PREREQ([2.2])
+LT_INIT([disable-static])
+
+# Check for programs
+AC_PROG_CC
+AC_PROG_CC_C99
+AM_PROG_CC_C_O
+AC_PROG_CXX
+AX_CXX_COMPILE_STDCXX(11)
+AC_SYS_LARGEFILE
+PKG_PROG_PKG_CONFIG([0.28])
+AM_MISSING_PROG([RAGEL], [ragel])
+AM_MISSING_PROG([GIT], [git])
+
+# Version
+m4_define(hb_version_triplet,m4_split(AC_PACKAGE_VERSION,[[.]]))
+m4_define(hb_version_major,m4_argn(1,hb_version_triplet))
+m4_define(hb_version_minor,m4_argn(2,hb_version_triplet))
+m4_define(hb_version_micro,m4_argn(3,hb_version_triplet))
+HB_VERSION_MAJOR=hb_version_major
+HB_VERSION_MINOR=hb_version_minor
+HB_VERSION_MICRO=hb_version_micro
+HB_VERSION=AC_PACKAGE_VERSION
+AC_SUBST(HB_VERSION_MAJOR)
+AC_SUBST(HB_VERSION_MINOR)
+AC_SUBST(HB_VERSION_MICRO)
+AC_SUBST(HB_VERSION)
+
+# Libtool version
+m4_define([hb_version_int],
+	  m4_eval(hb_version_major*10000 + hb_version_minor*100 + hb_version_micro))
+HB_LIBTOOL_VERSION_INFO=hb_version_int:0:hb_version_int
+AC_SUBST(HB_LIBTOOL_VERSION_INFO)
+
+AC_ARG_WITH([libstdc++],
+	[AS_HELP_STRING([--with-libstdc++=@<:@yes/no@:>@],
+			[Allow linking with libstdc++ @<:@default=no@:>@])],
+	[with_libstdcxx=$withval],
+	[with_libstdcxx=no])
+AM_CONDITIONAL(WITH_LIBSTDCXX, [test "x$with_libstdcxx" = "xyes"])
+
+# Documentation
+have_gtk_doc=false
+m4_ifdef([GTK_DOC_CHECK], [
+GTK_DOC_CHECK([1.15],[--flavour no-tmpl])
+	if test "x$enable_gtk_doc" = xyes; then
+		have_gtk_doc=true
+	fi
+], [
+	AM_CONDITIONAL([ENABLE_GTK_DOC], false)
+])
+
+# Functions and headers
+AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty newlocale uselocale)
+AC_CHECK_HEADERS(unistd.h sys/mman.h stdbool.h xlocale.h)
+
+# Compiler flags
+AC_CANONICAL_HOST
+AC_CHECK_ALIGNOF([struct{char;}])
+if test "x$GCC" = "xyes"; then
+
+	# Make symbols link locally
+	AX_CHECK_LINK_FLAG([[-Bsymbolic-functions]], [LDFLAGS="$LDFLAGS -Bsymbolic-functions"])
+
+	# Make it possible to not link to libstdc++
+	# No threadsafe statics in C++ as we do it ourselves.
+	# We don't use these features, so it's safe to disable them
+	# even in the cases where we DO link to libstdc++.
+	# Put -fno-rtti before $CXXFLAGS such that users can re-enable it
+	# by overriding CXXFLAGS.
+	CXXFLAGS="-fno-rtti $CXXFLAGS -fno-exceptions -fno-threadsafe-statics"
+
+	case "$host" in
+		*-*-mingw*)
+		;;
+		*)
+			# Hide inline methods
+			CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
+		;;
+	esac
+
+	case "$host" in
+		arm-*-*)
+			if test "x$ac_cv_alignof_struct_char__" != x1; then
+				# Request byte alignment
+				CXXFLAGS="$CXXFLAGS -mstructure-size-boundary=8"
+			fi
+		;;
+	esac
+fi
+
+AM_CONDITIONAL(HAVE_GCC, test "x$GCC" = "xyes")
+
+hb_os_win32=no
+AC_MSG_CHECKING([for native Win32])
+case "$host" in
+  *-*-mingw*)
+    hb_os_win32=yes
+    ;;
+esac
+AC_MSG_RESULT([$hb_os_win32])
+AM_CONDITIONAL(OS_WIN32, test "$hb_os_win32" = "yes")
+
+have_pthread=false
+AX_PTHREAD([have_pthread=true])
+if $have_pthread; then
+	AC_DEFINE(HAVE_PTHREAD, 1, [Have POSIX threads])
+fi
+AM_CONDITIONAL(HAVE_PTHREAD, $have_pthread)
+
+dnl ==========================================================================
+
+AC_ARG_WITH(glib,
+	[AS_HELP_STRING([--with-glib=@<:@yes/no/auto@:>@],
+			[Use glib @<:@default=auto@:>@])],,
+	[with_glib=auto])
+have_glib=false
+GLIB_DEPS="glib-2.0 >= 2.19.1"
+AC_SUBST(GLIB_DEPS)
+if test "x$with_glib" = "xyes" -o "x$with_glib" = "xauto"; then
+	PKG_CHECK_MODULES(GLIB, $GLIB_DEPS, have_glib=true, :)
+fi
+if test "x$with_glib" = "xyes" -a "x$have_glib" != "xtrue"; then
+	AC_MSG_ERROR([glib support requested but glib-2.0 not found])
+fi
+if $have_glib; then
+	AC_DEFINE(HAVE_GLIB, 1, [Have glib2 library])
+fi
+AM_CONDITIONAL(HAVE_GLIB, $have_glib)
+
+dnl ===========================================================================
+
+AC_ARG_WITH(gobject,
+	[AS_HELP_STRING([--with-gobject=@<:@yes/no/auto@:>@],
+			[Use gobject @<:@default=no@:>@])],,
+	[with_gobject=no])
+have_gobject=false
+if test "x$with_gobject" = "xyes" -o "x$with_gobject" = "xauto"; then
+	PKG_CHECK_MODULES(GOBJECT, gobject-2.0 glib-2.0, have_gobject=true, :)
+fi
+if test "x$with_gobject" = "xyes" -a "x$have_gobject" != "xtrue"; then
+	AC_MSG_ERROR([gobject support requested but gobject-2.0 / glib-2.0 not found])
+fi
+if $have_gobject; then
+	AC_DEFINE(HAVE_GOBJECT, 1, [Have gobject2 library])
+	GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`
+	AC_SUBST(GLIB_MKENUMS)
+fi
+AM_CONDITIONAL(HAVE_GOBJECT, $have_gobject)
+AC_SUBST(have_gobject)
+
+dnl ===========================================================================
+
+
+dnl ===========================================================================
+# Gobject-Introspection
+have_introspection=false
+m4_ifdef([GOBJECT_INTROSPECTION_CHECK], [
+	if $have_gobject; then
+		GOBJECT_INTROSPECTION_CHECK([1.34.0])
+		if test "x$found_introspection" = xyes; then
+			have_introspection=true
+		fi
+	else
+		AM_CONDITIONAL([HAVE_INTROSPECTION], false)
+	fi
+], [
+	AM_CONDITIONAL([HAVE_INTROSPECTION], false)
+])
+
+dnl ==========================================================================
+
+AC_ARG_WITH(cairo,
+	[AS_HELP_STRING([--with-cairo=@<:@yes/no/auto@:>@],
+			[Use cairo @<:@default=auto@:>@])],,
+	[with_cairo=auto])
+have_cairo=false
+if test "x$with_cairo" = "xyes" -o "x$with_cairo" = "xauto"; then
+	PKG_CHECK_MODULES(CAIRO, cairo >= 1.8.0, have_cairo=true, :)
+	save_libs=$LIBS
+	LIBS="$LIBS $CAIRO_LIBS"
+	AC_CHECK_FUNCS(cairo_user_font_face_set_render_color_glyph_func)
+	LIBS=$save_libs
+fi
+if test "x$with_cairo" = "xyes" -a "x$have_cairo" != "xtrue"; then
+	AC_MSG_ERROR([cairo support requested but not found])
+fi
+if $have_cairo; then
+	AC_DEFINE(HAVE_CAIRO, 1, [Have cairo graphics library])
+fi
+AM_CONDITIONAL(HAVE_CAIRO, $have_cairo)
+
+have_cairo_ft=false
+if $have_cairo; then
+	PKG_CHECK_MODULES(CAIRO_FT, cairo-ft, have_cairo_ft=true, :)
+fi
+if $have_cairo_ft; then
+	AC_DEFINE(HAVE_CAIRO_FT, 1, [Have cairo-ft support in cairo graphics library])
+fi
+AM_CONDITIONAL(HAVE_CAIRO_FT, $have_cairo_ft)
+
+dnl ==========================================================================
+
+AC_ARG_WITH(chafa,
+	[AS_HELP_STRING([--with-chafa=@<:@yes/no/auto@:>@],
+			[Use chafa @<:@default=auto@:>@])],,
+	[with_chafa=auto])
+have_chafa=false
+if test "x$with_chafa" = "xyes" -o "x$with_chafa" = "xauto"; then
+	PKG_CHECK_MODULES(CHAFA, chafa >= 1.6.0, have_chafa=true, :)
+fi
+if test "x$with_chafa" = "xyes" -a "x$have_chafa" != "xtrue"; then
+	AC_MSG_ERROR([chafa support requested but not found])
+fi
+if $have_chafa; then
+	AC_DEFINE(HAVE_CHAFA, 1, [Have chafa terminal graphics library])
+fi
+AM_CONDITIONAL(HAVE_CHAFA, $have_chafa)
+
+dnl ==========================================================================
+
+AC_ARG_WITH(icu,
+	[AS_HELP_STRING([--with-icu=@<:@yes/no/builtin/auto@:>@],
+			[Use ICU @<:@default=auto@:>@])],,
+	[with_icu=auto])
+have_icu=false
+if test "x$with_icu" = "xyes" -o "x$with_icu" = "xbuiltin" -o "x$with_icu" = "xauto"; then
+	PKG_CHECK_MODULES(ICU, icu-uc, have_icu=true, :)
+fi
+if test \( "x$with_icu" = "xyes" -o "x$with_icu" = "xbuiltin" \) -a "x$have_icu" != "xtrue"; then
+	AC_MSG_ERROR([icu support requested but icu-uc not found])
+fi
+
+if $have_icu; then
+	CXXFLAGS="$CXXFLAGS `$PKG_CONFIG --variable=CXXFLAGS icu-uc`"
+	AC_DEFINE(HAVE_ICU, 1, [Have ICU library])
+	if test "x$with_icu" = "xbuiltin"; then
+		AC_DEFINE(HAVE_ICU_BUILTIN, 1, [Use hb-icu Unicode callbacks])
+	fi
+fi
+AM_CONDITIONAL(HAVE_ICU, $have_icu)
+AM_CONDITIONAL(HAVE_ICU_BUILTIN, $have_icu && test "x$with_icu" = "xbuiltin")
+
+dnl ===========================================================================
+
+AC_ARG_WITH(graphite2,
+	[AS_HELP_STRING([--with-graphite2=@<:@yes/no/auto@:>@],
+			[Use the graphite2 library @<:@default=no@:>@])],,
+	[with_graphite2=no])
+have_graphite2=false
+GRAPHITE2_DEPS="graphite2 >= 1.2.0"
+AC_SUBST(GRAPHITE2_DEPS)
+if test "x$with_graphite2" = "xyes" -o "x$with_graphite2" = "xauto"; then
+	PKG_CHECK_MODULES(GRAPHITE2, $GRAPHITE2_DEPS, have_graphite2=true, :)
+	if test "x$have_graphite2" != "xtrue"; then
+                # If pkg-config is not available, graphite2 can still be there
+		ac_save_CFLAGS="$CFLAGS"
+		ac_save_CPPFLAGS="$CPPFLAGS"
+		CFLAGS="$CFLAGS $GRAPHITE2_CFLAGS"
+		CPPFLAGS="$CPPFLAGS $GRAPHITE2_CFLAGS"
+		AC_CHECK_HEADER(graphite2/Segment.h, have_graphite2=true, :)
+		CPPFLAGS="$ac_save_CPPFLAGS"
+		CFLAGS="$ac_save_CFLAGS"
+	fi
+fi
+if test "x$with_graphite2" = "xyes" -a "x$have_graphite2" != "xtrue"; then
+	AC_MSG_ERROR([graphite2 support requested but libgraphite2 not found])
+fi
+if $have_graphite2; then
+	AC_DEFINE(HAVE_GRAPHITE2, 1, [Have Graphite2 library])
+fi
+AM_CONDITIONAL(HAVE_GRAPHITE2, $have_graphite2)
+
+dnl ==========================================================================
+
+AC_ARG_WITH(freetype,
+	[AS_HELP_STRING([--with-freetype=@<:@yes/no/auto@:>@],
+			[Use the FreeType library @<:@default=auto@:>@])],,
+	[with_freetype=auto])
+have_freetype=false
+FREETYPE_DEPS="freetype2 >= 12.0.6"
+AC_SUBST(FREETYPE_DEPS)
+if test "x$with_freetype" = "xyes" -o "x$with_freetype" = "xauto"; then
+	# See freetype/docs/VERSION.DLL; 12.0.6 means freetype-2.4.2
+	PKG_CHECK_MODULES(FREETYPE, $FREETYPE_DEPS, have_freetype=true, :)
+fi
+if test "x$with_freetype" = "xyes" -a "x$have_freetype" != "xtrue"; then
+	AC_MSG_ERROR([FreeType support requested but libfreetype2 not found])
+fi
+if $have_freetype; then
+	AC_DEFINE(HAVE_FREETYPE, 1, [Have FreeType 2 library])
+	save_libs=$LIBS
+	LIBS="$LIBS $FREETYPE_LIBS"
+	AC_CHECK_FUNCS(FT_Get_Var_Blend_Coordinates FT_Set_Var_Blend_Coordinates FT_Done_MM_Var FT_Get_Transform)
+	LIBS=$save_libs
+fi
+AM_CONDITIONAL(HAVE_FREETYPE, $have_freetype)
+
+dnl ===========================================================================
+
+AC_ARG_WITH(uniscribe,
+	[AS_HELP_STRING([--with-uniscribe=@<:@yes/no/auto@:>@],
+			[Use the Uniscribe library @<:@default=no@:>@])],,
+	[with_uniscribe=no])
+have_uniscribe=false
+if test "x$with_uniscribe" = "xyes" -o "x$with_uniscribe" = "xauto"; then
+	AC_CHECK_HEADERS(usp10.h windows.h, have_uniscribe=true)
+fi
+if test "x$with_uniscribe" = "xyes" -a "x$have_uniscribe" != "xtrue"; then
+	AC_MSG_ERROR([uniscribe support requested but not found])
+fi
+if $have_uniscribe; then
+	UNISCRIBE_CFLAGS=
+	UNISCRIBE_LIBS="-lusp10 -lgdi32 -lrpcrt4"
+	AC_SUBST(UNISCRIBE_CFLAGS)
+	AC_SUBST(UNISCRIBE_LIBS)
+	AC_DEFINE(HAVE_UNISCRIBE, 1, [Have Uniscribe library])
+fi
+AM_CONDITIONAL(HAVE_UNISCRIBE, $have_uniscribe)
+
+dnl ===========================================================================
+
+AC_ARG_WITH(gdi,
+	[AS_HELP_STRING([--with-gdi=@<:@yes/no/auto@:>@],
+			[Provide GDI integration helpers @<:@default=no@:>@])],,
+	[with_gdi=no])
+have_gdi=false
+if test "x$with_gdi" = "xyes" -o "x$with_gdi" = "xauto"; then
+	AC_CHECK_HEADERS(windows.h, have_gdi=true)
+fi
+if test "x$with_gdi" = "xyes" -a "x$have_gdi" != "xtrue"; then
+	AC_MSG_ERROR([gdi support requested but not found])
+fi
+if $have_gdi; then
+	GDI_CFLAGS=
+	GDI_LIBS="-lgdi32"
+	AC_SUBST(GDI_CFLAGS)
+	AC_SUBST(GDI_LIBS)
+	AC_DEFINE(HAVE_GDI, 1, [Have GDI library])
+fi
+AM_CONDITIONAL(HAVE_GDI, $have_gdi)
+
+dnl ===========================================================================
+
+AC_ARG_WITH(directwrite,
+	[AS_HELP_STRING([--with-directwrite=@<:@yes/no/auto@:>@],
+			[Use the DirectWrite library (experimental) @<:@default=no@:>@])],,
+	[with_directwrite=no])
+have_directwrite=false
+AC_LANG_PUSH([C++])
+if test "x$with_directwrite" = "xyes" -o "x$with_directwrite" = "xauto"; then
+	AC_CHECK_HEADERS(dwrite_1.h, have_directwrite=true)
+fi
+AC_LANG_POP([C++])
+if test "x$with_directwrite" = "xyes" -a "x$have_directwrite" != "xtrue"; then
+	AC_MSG_ERROR([directwrite support requested but not found])
+fi
+if $have_directwrite; then
+	AC_DEFINE(HAVE_DIRECTWRITE, 1, [Have DirectWrite library])
+fi
+AM_CONDITIONAL(HAVE_DIRECTWRITE, $have_directwrite)
+
+dnl ===========================================================================
+
+AC_ARG_WITH(coretext,
+	[AS_HELP_STRING([--with-coretext=@<:@yes/no/auto@:>@],
+			[Use CoreText @<:@default=no@:>@])],,
+	[with_coretext=no])
+have_coretext=false
+if test "x$with_coretext" = "xyes" -o "x$with_coretext" = "xauto"; then
+	AC_CHECK_TYPE(CTFontRef, have_coretext=true,, [#include <ApplicationServices/ApplicationServices.h>])
+
+	if $have_coretext; then
+		CORETEXT_CFLAGS=
+		CORETEXT_LIBS="-framework ApplicationServices"
+		AC_SUBST(CORETEXT_CFLAGS)
+		AC_SUBST(CORETEXT_LIBS)
+	else
+		# On iOS CoreText and CoreGraphics are stand-alone frameworks
+		if test "x$have_coretext" != "xtrue"; then
+			# Check for a different symbol to avoid getting cached result.
+			AC_CHECK_TYPE(CTRunRef, have_coretext=true,, [#include <CoreText/CoreText.h>])
+		fi
+
+		if $have_coretext; then
+			CORETEXT_CFLAGS=
+			CORETEXT_LIBS="-framework CoreText -framework CoreGraphics -framework CoreFoundation"
+			AC_SUBST(CORETEXT_CFLAGS)
+			AC_SUBST(CORETEXT_LIBS)
+		fi
+	fi
+fi
+if test "x$with_coretext" = "xyes" -a "x$have_coretext" != "xtrue"; then
+	AC_MSG_ERROR([CoreText support requested but libcoretext not found])
+fi
+if $have_coretext; then
+	AC_DEFINE(HAVE_CORETEXT, 1, [Have Core Text backend])
+fi
+AM_CONDITIONAL(HAVE_CORETEXT, $have_coretext)
+
+dnl ===========================================================================
+
+AC_CONFIG_FILES([
+Makefile
+src/Makefile
+src/harfbuzz-config.cmake
+util/Makefile
+test/Makefile
+test/api/Makefile
+test/fuzzing/Makefile
+test/shape/Makefile
+test/shape/data/Makefile
+test/shape/data/aots/Makefile
+test/shape/data/in-house/Makefile
+test/shape/data/text-rendering-tests/Makefile
+test/subset/Makefile
+test/subset/data/Makefile
+test/subset/data/repack_tests/Makefile
+test/threads/Makefile
+perf/Makefile
+docs/Makefile
+docs/version.xml
+])
+
+AC_OUTPUT
+
+echo
+echo "C++ compiler version:"
+$CXX --version
+echo
+
+AC_MSG_NOTICE([
+
+Autotools is no longer our supported build system for building the library
+for *nix distributions, please migrate to meson.
+
+])
+
+
+AC_MSG_NOTICE([
+
+Build configuration:
+
+Unicode callbacks (you want at least one):
+	Builtin			true
+	Glib:			${have_glib}
+	ICU:			${have_icu}
+
+Font callbacks (the more the merrier):
+	FreeType:		${have_freetype}
+
+Tools used for command-line utilities:
+	Cairo:			${have_cairo}
+	Chafa:			${have_chafa}
+
+Additional shapers:
+	Graphite2:		${have_graphite2}
+
+Platform shapers (not normally needed):
+	CoreText:		${have_coretext}
+	DirectWrite:		${have_directwrite}
+	GDI:			${have_gdi}
+	Uniscribe:		${have_uniscribe}
+
+Other features:
+	Documentation:		${enable_gtk_doc}
+	GObject bindings:	${have_gobject}
+	Introspection:		${have_introspection}
+])