dnl Process this file with autoconf to produce a configure script.AC_INIT(ht,[2.0.15],[https://sourceforge.net/tracker/?group_id=1066])AC_PREREQ(2.59)dnl Check the system.AC_CANONICAL_SYSTEMAC_ARG_ENABLE(x11-textmode, 	[  --enable-x11-textmode   build with x11 textmode support [default=yes]],,enable_x11_textmode="yes")AC_ARG_ENABLE(maintainermode,	[  --enable-maintainermode minimise autodetection for package mantainers [default=no]],,enable_maintainermode="no")AC_ARG_ENABLE(release,	[  --enable-release        make a release build [default=yes]],,enable_release="yes")AC_ARG_ENABLE(profiling,	[  --enable-profiling      make a profile build [default=no]],,enable_profiling="no")if test "x$enable_maintainermode" = "xno"; thenif test "x$enable_release" = "xyes"; then    FLAGS_ALL="-O3 -fomit-frame-pointer -Wall -fsigned-char"else    FLAGS_ALL="-ggdb -g3 -O0 -Wall -fsigned-char"fiif test "x$enable_profiling" = "xyes"; then    FLAGS_ALL="$FLAGS_ALL -pg -g"fifiAM_INIT_AUTOMAKEAM_CONFIG_HEADER(config.h)dnl Check OS specificaNEED_CURSES=0HAVE_PIPE=0HT_X11BASE="-L/usr/X11/lib -L/usr/X11R6/lib"case "$target_os" inlinux*) 	IO_DIR=posix	echo "*** LINUX, building POSIX version. we need (n)curses." 1>&2	NEED_CURSES=1	HAVE_PIPE=1	FLAGS_ALL="$FLAGS_ALL -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";;*freebsd*) 	IO_DIR=posix	echo "*** FREEBSD, building native FreeBSD version. we need (n)curses." 1>&2	NEED_CURSES=1	HAVE_PIPE=1	FLAGS_ALL="$FLAGS_ALL -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";;*openbsd*) 	IO_DIR=posix	echo "*** OpenBSD, building native OpenBSD version. we need (n)curses." 1>&2	NEED_CURSES=1	HAVE_PIPE=1	HT_X11BASE="-L${X11BASE}/lib"	FLAGS_ALL="$FLAGS_ALL -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";;cygwin*)	IO_DIR=win32	echo "*** CYGWIN, building native Win32 version (no cygwin.dll)" 1>&2	FLAGS_ALL="$FLAGS_ALL -mno-cygwin"	NEED_CURSES=0	HAVE_PIPE=1;;mingw32*)	IO_DIR=win32	echo "*** MINGW32, building native Win32 version" 1>&2	NEED_CURSES=0	HAVE_PIPE=1;;*) 	echo "configure: warning: $target_os: unknown target OS, assuming POSIX-compatible..." 1>&2	IO_DIR=posix	echo "*** POSIX-generic, we need (n)curses, '-pipe' disabled for safety" 1>&2	NEED_CURSES=1	HAVE_PIPE=0	FLAGS_ALL="$FLAGS_ALL -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";;	esacif test "x$HAVE_PIPE" = "x1"; then	FLAGS_PIPE="-pipe";fiCXXFLAGS="-DNOMACROS $FLAGS_PIPE $FLAGS_ALL -Woverloaded-virtual -Wnon-virtual-dtor $CXXFLAGS"CFLAGS="-DNOMACROS $FLAGS_PIPE $FLAGS_ALL $CFLAGS"AC_DEFINE_UNQUOTED(SYSTEM_OSAPI_SPECIFIC_TYPES_HDR, "io/$IO_DIR/types.h", [Location of io/$IO_DIR/types.h])AM_CONDITIONAL(USE_POSIX_DIR, test x$IO_DIR = xposix)AM_CONDITIONAL(USE_DJGPP_DIR, test x$IO_DIR = xdjgpp)AM_CONDITIONAL(USE_WIN32_DIR, test x$IO_DIR = xwin32)dnl Checks for programs.AC_PROG_RANLIBAC_PATH_PROGS(MAKE, gmake make, :)AC_PROG_MAKE_SETAC_PROG_CCAC_PROG_CPPAC_PROG_CXXAC_PROG_YACCAM_PROG_LEXAC_PATH_PROG(AR, ar)AC_PATH_PROG(AR, gar)if test "x$AR" = "x"; then	   AC_MSG_ERROR([*** 'ar' and 'gar' missing, please install one of them or fix your \$PATH ***])fidnl Checks for libraries.minilzo_enabled=noAC_ARG_WITH(included-lzo,	AS_HELP_STRING([--with-included-lzo],		[use included minilzo]),	minilzo_enabled=$withval,	minilzo_enabled=no)AC_MSG_CHECKING([whether to use the included lzo compression library])AC_MSG_RESULT($minilzo_enabled)LZO_LIBS=if test "$minilzo_enabled" != "yes"; then  AC_CHECK_LIB(lzo2, lzo1x_1_compress, LZO_LIBS=-llzo2)  if test "$LZO_LIBS" = ""; then    AC_CHECK_LIB(lzo, lzo1x_1_compress, LZO_LIBS=-llzo, [      minilzo_enabled=yes      AC_MSG_WARN(****** Could not find liblzo or liblzo2. Will use the included minilzo.)    ])  fifiAC_SUBST(LZO_LIBS)if test "$LZO_LIBS" = "-llzo"; then  AC_CHECK_HEADERS(lzo1x.h)elif test "$LZO_LIBS" = "-llzo2"; then  AC_CHECK_HEADERS(lzo/lzo1x.h)fiif test "$minilzo_enabled" = "yes"; then  AC_DEFINE(USE_MINILZO, 1, [whether to use the included minilzo])fiAM_CONDITIONAL(USE_LZO, test "$use_lzo" = "yes")AM_CONDITIONAL(ENABLE_INCLUDED_LZO, test "$minilzo_enabled" = "yes")HAVE_X11=0if test "x$enable_x11_textmode" = "xyes"; then	TEMP_LDFLAGS=$LDFLAGS	LDFLAGS="$HT_LDFLAGS $HT_X11BASE"	AC_CHECK_LIB(X11, XOpenDisplay, HAVE_X11=1)	LDFLAGS=$TEMP_LDFLAGS	if test "x$HAVE_X11" = "x1"; then		AC_DEFINE(HAVE_TEXTMODE_X11, 1, [This system has Xlib support and we shall use it])		HT_LIBS="$HT_LIBS -lX11"		HT_LDFLAGS="$HT_LDFLAGS $HT_X11BASE"	fifidnl Checks for header files.AC_HEADER_STDCAC_CHECK_HEADERS([stdlib.h])AC_CHECK_HEADERS([string.h])AC_CHECK_HEADERS([stdint.h])dnl AC_CONFIG_HEADER(config.h)CURSES_LIB=if test "x$NEED_CURSES" = "x1"; then	AC_CHECK_HEADERS(ncurses.h, AC_DEFINE(CURSES_HDR, <ncurses.h>, [This system provides (n)curses.h]) CURSES_LIB=ncurses)	if test "x$CURSES_LIB" = "x"; then		AC_CHECK_HEADERS(curses.h, AC_DEFINE(CURSES_HDR, <curses.h>, [This system provides (n)curses.h]) CURSES_LIB=curses)		if test "x$CURSES_LIB" = "x"; then			   AC_MSG_ERROR([*** (n)curses.h needed ***])		fi	fi	HT_LIBS="$HT_LIBS -l$CURSES_LIB"fi    dnl Makefile vars.AC_SUBST(IO_DIR)AC_SUBST(HT_LDFLAGS)AC_SUBST(HT_LIBS)dnl Checks for typedefs, structures, and compiler characteristics.AC_C_CONSTAC_CHECK_SIZEOF(char, 1)AC_CHECK_SIZEOF(short, 2)AC_CHECK_SIZEOF(int, 4)AC_CHECK_SIZEOF(long int, 4)dnl Checks for library functions.AC_CHECK_FUNCS(asinh acosh atanh)AC_OUTPUT([Makefileanalyser/Makefileasm/Makefiledoc/Makefileeval/Makefileinfo/Makefileio/Makefileio/posix/Makefileio/djgpp/Makefileio/win32/Makefileminilzo/Makefileoutput/Makefiletools/Makefile])echo 1>&2echo "$0 successful." 1>&2echo 1>&2echo "=====================" 1>&2echo "Configuration summary" 1>&2echo "=====================" 1>&2echo 1>&2if test "x$HAVE_X11" = "x1"; then	echo "X11 textmode support available:   yes" 1>&2else	echo "X11 textmode support available:   no" 1>&2fiecho "enable profiling:                 $enable_profiling" 1>&2echo "make a release build:             $enable_release" 1>&2echo "using included minilzo:           $minilzo_enabled" 1>&2