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diff --git a/Build/source/texk/dvisvgm/configure.ac b/Build/source/texk/dvisvgm/configure.ac
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--- a/Build/source/texk/dvisvgm/configure.ac
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@@ -1,240 +0,0 @@
-dnl $Id$
-dnl Process this file with autoconf to produce a configure script
-dnl for dvisvgm in TeX Live.
-dnl
-dnl Copyright 2015-2021 Karl Berry <tex-live@tug.org>
-dnl Copyright 2009-2014 Peter Breitenlohner <tex-live@tug.org>
-dnl
-dnl This file is free software; the copyright holder
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-dnl
-dnl Adapted for TeX Live from original dvisvgm configure.ac
-dnl Copyright 2005-2020 Martin Gieseking
-dnl
-AC_PREREQ([2.65])
-m4_include([version.ac])[] dnl define dvisvgm_version
-AC_INIT([dvisvgm (TeX Live)], dvisvgm_version, [tex-k@tug.org])
-DATE="January 2021"
-AC_CONFIG_SRCDIR([dvisvgm-src/src/dvisvgm.cpp])
-AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_MACRO_DIRS([../../m4])dnl not just _DIR
-AC_CONFIG_AUX_DIR([../../build-aux])
-
-AM_CONDITIONAL([TEXLIVE_BUILD], [test "x$enable_texlive_build" = xyes])
-
-# Common code for all programs using libkpathsea.
-# PROG_AR must be run before KPSE_COMMON, since the latter calls LT_INIT.
-AM_PROG_AR
-KPSE_COMMON([dvisvgm])
-
-AH_TEMPLATE([TARGET_SYSTEM], [The machine triplet of the target system])
-AC_DEFINE_UNQUOTED([TARGET_SYSTEM], ["$target"])
-
-AC_PROG_CC
-AC_PROG_CC_C99
-AC_PROG_CXX
-AX_CXX_COMPILE_STDCXX([11])
-LT_INIT
-KPSE_CXX_HACK
-
-AC_PROG_RANLIB
-AC_LANG(C)
-
-AC_CHECK_HEADERS([sys/time.h sys/timeb.h xlocale.h])
-AC_HEADER_TIOCGWINSZ
-
-KPSE_COND_WIN32
-KPSE_KPATHSEA_FLAGS
-KPSE_FREETYPE2_FLAGS
-KPSE_ZLIB_FLAGS
-
-KPSE_SAVE_FLAGS
-
-# emacs-page Ghostscript complexities.
-LIBGS_INCLUDES=
-LIBGS_LIBS=
-if test "x$enable_native_texlive_build" = xyes; then
- # TL: always dlload libgs, must avoid shared lib ref in binary.
- HAVE_LIBGS=0
-else
-have_libgs=yes
-AC_CHECK_HEADER([ghostscript/iapi.h],
- [AC_CHECK_LIB(gs, gsapi_revision,, [have_libgs=no])],
- [have_libgs=no])
-if test "x$have_libgs" = xyes; then
- HAVE_LIBGS=1
-fi
-AS_IF([test "x$have_libgs" = "xno"],
- # Ghostscript not found, check for dlopen
- [AC_CHECK_LIB(dl, dlopen,,
- [AC_DEFINE(DISABLE_GS, 1, [Set to 1 if PostScript support should be disabled])]
- [AC_MSG_WARN(PostScript support disabled)])])
-fi
-
-if test -z "$HAVE_LIBGS" || test "$HAVE_LIBGS" -eq 0; then
- AC_MSG_NOTICE([not linking to libgs, trying to arrange for dynamic loading])
- # Windows (native or MinGW32) has neither <dlfcn.h> nor dlopen().
- if test "x$kpse_cv_have_win32" = xno; then
- # FreeBSD neither has nor requires libdl.
- AC_SEARCH_LIBS([dlopen], [dl])
- AS_CASE([$ac_cv_search_dlopen],
- [no | "none required"], [],
- [LIBGS_LIBS=$ac_cv_search_dlopen])
- AC_CHECK_HEADER([dlfcn.h])
- AC_CHECK_FUNC([dlopen])
- if test "x$ac_cv_header_dlfcn_h:$ac_cv_func_dlopen" != xyes:yes; then
- AC_DEFINE(DISABLE_GS, 1,
- [Set to 1 if PostScript support is to be disabled])
- LIBGS_LIBS=
- fi
- fi
-else
- # query Ghostscript version
- AC_MSG_CHECKING([Ghostscript version])
- AC_RUN_IFELSE([AC_LANG_SOURCE([#include <stdio.h>
- #include <ghostscript/iapi.h>
- int main () {
- gsapi_revision_t r;
- if (gsapi_revision(&r, sizeof(gsapi_revision_t)) == 0) {
- FILE *f;
- f = fopen("gsversion", "w");
- if (!f) exit(1);
- fprintf(f, "%ld\n", r.revision);
- fclose(f);
- exit(0);
- }
- }])],
- [gsversion=`cat gsversion`], [gsversion=], [gsversion=unknown])
- AC_MSG_RESULT("$gsversion")
- rm -f gsversion
- if test -z "$gsversion" || test "$gsversion" -lt 831; then
- # current Ghostscript API was introduced in version 8.31
- # older versions are not supported
- AC_DEFINE(DISABLE_GS, 1, [Set to 1 if PostScript support should be disabled])
- AC_MSG_WARN([Ghostscript version < 8.31 found; PostScript support disabled])
- else
- LIBGS_LIBS=-lgs
- fi
-fi
-AC_SUBST([LIBGS_INCLUDES])
-AC_SUBST([LIBGS_LIBS])
-
-if test "x$enable_build" != xno || test -f config.force; then
-
-# Checks for more libraries.
-KPSE_ADD_FLAGS([zlib])
-AC_CHECK_FUNC([gzopen], [],
- [AC_MSG_ERROR([cannot find/use zlib])])
-
-KPSE_ADD_FLAGS([freetype2])
-AC_CHECK_FUNC([FT_Init_FreeType], [],
- [AC_MSG_ERROR([cannot find/use libfreetype])])
-
-KPSE_ADD_FLAGS([kpathsea])
-AC_CHECK_FUNC([kpse_set_program_name], [],
- [AC_MSG_ERROR([cannot find/use libkpathsea])])
-
-# Check if the kpathsea headers are C++ safe.
-AC_LANG_PUSH([C++])
-AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <kpathsea/kpathsea.h>]],
- [[printf("%s\n", concat("one", "two"))]])],
- [],
- [AC_MSG_ERROR([Sorry, your kpathsea headers are too old])
- AC_DEFINE([KPSE_CXX_UNSAFE], 1,
- [Define to 1 if the kpathsea headers are not C++ safe.])])
-AC_LANG_POP([C++])
-
-echo timestamp >config.force
-fi
-
-KPSE_RESTORE_FLAGS
-
-# emacs-page
-# Check for header files.
-AC_HEADER_DIRENT
-AC_HEADER_STDC
-AC_CHECK_HEADERS_ONCE([libintl.h stdlib.h string.h strings.h unistd.h])
-
-# Check for typedefs, structures, and compiler characteristics.
-AC_HEADER_STDBOOL
-AC_TYPE_SIZE_T
-AC_STRUCT_TM
-
-# Check for library functions.
-AC_FUNC_STAT
-AC_CHECK_FUNCS_ONCE([ftime gettimeofday sigaction umask uselocale])
-
-AC_SEARCH_LIBS(clock_gettime, rt)dnl for Solaris 10 and other old libc
-
-AC_ARG_ENABLE([woff],
- [AS_HELP_STRING([--disable-woff], [Disable WOFF support @<:@default=no@:>@])],
- [],
- [enable_woff=yes])
-AM_CONDITIONAL([ENABLE_WOFF], [test "x$enable_woff" = "xyes"])
-
-AC_DEFINE([HAVE_LIBKPATHSEA], 1, [Define to 1 if you have the `kpathsea' library (-lkpathsea).])
-AC_DEFINE([HAVE_LIBFREETYPE], 1, [Define to 1 if you have the `freetype2' library (-lfreetype).])
-AC_DEFINE([HAVE_LIBZ], 1, [Define to 1 if you have the `z' library (-lz).])
-if false; then
- AC_DEFINE([KPSE_CXX_UNSAFE], 1, [Define to 1 if the kpathsea headers are not C++ safe.])
-fi
-
-# TL: skip ttfautohint?
-
-# Add option to enable linking of bundled libraries (brotli, potrace, woff2, xxhash).
-AC_ARG_ENABLE([bundled-libs],
- [AS_HELP_STRING([--enable-bundled-libs], [use bundled libraries instead of the system ones @<:@default=no@:>@])],
- [use_bundled_libs=yes])
-AM_CONDITIONAL([USE_BUNDLED_LIBS], [test "x$use_bundled_libs" = "xyes" dnl
- || test "x$enable_native_texlive_build" = xyes])
-# that is, force using bundled libs for native TL build.
-
-# TL: use bundled md5 too
-AM_CONDITIONAL([USE_BUNDLED_MD5], true)
-
-# TL: these conditionals for system libraries are in the Makefile.am's.
-AM_CONDITIONAL(HAVE_POTRACE, false)
-AM_CONDITIONAL(HAVE_BROTLI, false)
-AM_CONDITIONAL(HAVE_WOFF2, false)
-AM_CONDITIONAL(HAVE_XXHASH, false)
-
-# TL: not going to build_manpage (which is the default).
-# TL: not going to attempt code coverage; need to subst it away.
-AM_CONDITIONAL([CODE_COVERAGE_ENABLED], false)
-CODE_COVERAGE_RULES=
-AC_SUBST([CODE_COVERAGE_RULES])
-
-# TL: the original configure calls pkg_check_modules,
-# which calls ac_arg_var on the _cflags and _libs for various libraries,
-# which calls ac_subst. we'll just ac_subst them to get initial (empty)
-# definitions, so we can retain the += used by the original lib/defs.am.
-# (init brotli)
-AC_SUBST(BROTLI_CFLAGS)
-AC_SUBST(BROTLI_LIBS)
-# (init woff2)
-AC_SUBST(WOFF2_CFLAGS)
-AC_SUBST(WOFF2_LIBS)
-
-AC_SUBST([DVISVGM_TREE], [dvisvgm-src])
-
-AC_SUBST([dvisvgm_srcdir], ['$(top_srcdir)/dvisvgm-src'])
-AC_SUBST(DATE)
-AC_SUBST(AM_CPPFLAGS)
-AC_SUBST(AM_LDFLAGS)
-AC_CONFIG_FILES([Makefile
- dvisvgm-src/Makefile
- dvisvgm-src/libs/Makefile
- dvisvgm-src/libs/brotli/Makefile
- dvisvgm-src/libs/clipper/Makefile
- dvisvgm-src/libs/ff-woff/Makefile
- dvisvgm-src/libs/md5/Makefile
- dvisvgm-src/libs/potrace/Makefile
- dvisvgm-src/libs/variant/Makefile
- dvisvgm-src/libs/woff2/Makefile
- dvisvgm-src/libs/xxHash/Makefile
- dvisvgm-src/src/Makefile
- dvisvgm-src/src/version.hpp
- dvisvgm-src/src/optimizer/Makefile
-])dnl TL: skipping tests/* and doc/*
-AC_OUTPUT