Base version of ncurses-5.7 library
diff --git a/test/aclocal.m4 b/test/aclocal.m4
new file mode 100644
index 0000000..afc50fe
--- /dev/null
+++ b/test/aclocal.m4
@@ -0,0 +1,2141 @@
+dnl***************************************************************************
+dnl Copyright (c) 2003-2007,2008 Free Software Foundation, Inc.              *
+dnl                                                                          *
+dnl Permission is hereby granted, free of charge, to any person obtaining a  *
+dnl copy of this software and associated documentation files (the            *
+dnl "Software"), to deal in the Software without restriction, including      *
+dnl without limitation the rights to use, copy, modify, merge, publish,      *
+dnl distribute, distribute with modifications, sublicense, and/or sell       *
+dnl copies of the Software, and to permit persons to whom the Software is    *
+dnl furnished to do so, subject to the following conditions:                 *
+dnl                                                                          *
+dnl The above copyright notice and this permission notice shall be included  *
+dnl in all copies or substantial portions of the Software.                   *
+dnl                                                                          *
+dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+dnl                                                                          *
+dnl Except as contained in this notice, the name(s) of the above copyright   *
+dnl holders shall not be used in advertising or otherwise to promote the     *
+dnl sale, use or other dealings in this Software without prior written       *
+dnl authorization.                                                           *
+dnl***************************************************************************
+dnl
+dnl $Id: aclocal.m4,v 1.22 2008/02/09 18:22:17 tom Exp $
+dnl
+dnl Author: Thomas E. Dickey
+dnl
+dnl Macros used in NCURSES test programs auto-configuration script.
+dnl
+dnl These macros are maintained separately from NCURSES.  The copyright on
+dnl this file applies to the aggregation of macros and does not affect use of
+dnl these macros in other applications.
+dnl
+dnl See http://invisible-island.net/autoconf/ for additional information.
+dnl
+dnl ---------------------------------------------------------------------------
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_CFLAGS version: 7 updated: 2004/04/25 17:48:30
+dnl -------------
+dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
+dnl The second parameter if given makes this macro verbose.
+dnl
+dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
+dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
+dnl confused by the quotes (which require backslashes to keep them usable).
+AC_DEFUN([CF_ADD_CFLAGS],
+[
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in $1
+do
+case $cf_fix_cppflags in
+no)
+	case $cf_add_cflags in #(vi
+	-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
+		case $cf_add_cflags in
+		-D*)
+			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
+
+			test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+			&& test -z "${cf_tst_cflags}" \
+			&& cf_fix_cppflags=yes
+
+			if test $cf_fix_cppflags = yes ; then
+				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+				continue
+			elif test "${cf_tst_cflags}" = "\"'" ; then
+				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+				continue
+			fi
+			;;
+		esac
+		case "$CPPFLAGS" in
+		*$cf_add_cflags) #(vi
+			;;
+		*) #(vi
+			cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
+			;;
+		esac
+		;;
+	*)
+		cf_new_cflags="$cf_new_cflags $cf_add_cflags"
+		;;
+	esac
+	;;
+yes)
+	cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+
+	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
+
+	test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+	&& test -z "${cf_tst_cflags}" \
+	&& cf_fix_cppflags=no
+	;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+	ifelse($2,,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
+	CFLAGS="$CFLAGS $cf_new_cflags"
+fi
+
+if test -n "$cf_new_cppflags" ; then
+	ifelse($2,,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
+	CPPFLAGS="$cf_new_cppflags $CPPFLAGS"
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+	ifelse($2,,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
+	EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
+fi
+
+AC_SUBST(EXTRA_CPPFLAGS)
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_INCDIR version: 9 updated: 2008/02/09 13:15:34
+dnl -------------
+dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
+dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
+dnl but old versions (and some misinstalled ones) need that.  To make things
+dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
+dnl the include-path).
+AC_DEFUN([CF_ADD_INCDIR],
+[
+if test -n "$1" ; then
+  for cf_add_incdir in $1
+  do
+	while test $cf_add_incdir != /usr/include
+	do
+	  if test -d $cf_add_incdir
+	  then
+		cf_have_incdir=no
+		if test -n "$CFLAGS$CPPFLAGS" ; then
+		  # a loop is needed to ensure we can add subdirs of existing dirs
+		  for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
+			if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
+			  cf_have_incdir=yes; break
+			fi
+		  done
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+          if test "$cf_add_incdir" = /usr/local/include ; then
+			if test "$GCC" = yes
+			then
+			  cf_save_CPPFLAGS=$CPPFLAGS
+			  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+			  AC_TRY_COMPILE([#include <stdio.h>],
+				  [printf("Hello")],
+				  [],
+				  [cf_have_incdir=yes])
+			  CPPFLAGS=$cf_save_CPPFLAGS
+			fi
+		  fi
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  CF_VERBOSE(adding $cf_add_incdir to include-path)
+		  ifelse($2,,CPPFLAGS,$2)="-I$cf_add_incdir $ifelse($2,,CPPFLAGS,[$]$2)"
+
+          cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
+          test "$cf_top_incdir" = "$cf_add_incdir" && break
+          cf_add_incdir="$cf_top_incdir"
+		else
+		  break
+		fi
+	  fi
+	done
+  done
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_LIBDIR version: 6 updated: 2008/02/09 13:15:34
+dnl -------------
+dnl	Adds to the library-path
+dnl
+dnl	Some machines have trouble with multiple -L options.
+dnl
+dnl $1 is the (list of) directory(s) to add
+dnl $2 is the optional name of the variable to update (default LDFLAGS)
+dnl
+AC_DEFUN([CF_ADD_LIBDIR],
+[
+if test -n "$1" ; then
+  for cf_add_libdir in $1
+  do
+    if test $cf_add_libdir = /usr/lib ; then
+      :
+    elif test -d $cf_add_libdir
+    then
+      cf_have_libdir=no
+      if test -n "$LDFLAGS$LIBS" ; then
+        # a loop is needed to ensure we can add subdirs of existing dirs
+        for cf_test_libdir in $LDFLAGS $LIBS ; do
+          if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
+            cf_have_libdir=yes; break
+          fi
+        done
+      fi
+      if test "$cf_have_libdir" = no ; then
+        CF_VERBOSE(adding $cf_add_libdir to library-path)
+        ifelse($2,,LDFLAGS,$2)="-L$cf_add_libdir $ifelse($2,,LDFLAGS,[$]$2)"
+      fi
+    fi
+  done
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_SUBDIR_PATH version: 2 updated: 2007/07/29 10:12:59
+dnl ------------------
+dnl Append to a search-list for a nonstandard header/lib-file
+dnl	$1 = the variable to return as result
+dnl	$2 = the package name
+dnl	$3 = the subdirectory, e.g., bin, include or lib
+dnl $4 = the directory under which we will test for subdirectories
+dnl $5 = a directory that we do not want $4 to match
+AC_DEFUN([CF_ADD_SUBDIR_PATH],
+[
+test "$4" != "$5" && \
+test -d "$4" && \
+ifelse([$5],NONE,,[(test $5 = NONE || test -d $5) &&]) {
+	test -n "$verbose" && echo "	... testing for $3-directories under $4"
+	test -d $4/$3 &&          $1="[$]$1 $4/$3"
+	test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
+	test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
+	test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
+	test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
+}
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ANSI_CC_CHECK version: 9 updated: 2001/12/30 17:53:34
+dnl ----------------
+dnl This is adapted from the macros 'fp_PROG_CC_STDC' and 'fp_C_PROTOTYPES'
+dnl in the sharutils 4.2 distribution.
+AC_DEFUN([CF_ANSI_CC_CHECK],
+[
+AC_CACHE_CHECK(for ${CC-cc} option to accept ANSI C, cf_cv_ansi_cc,[
+cf_cv_ansi_cc=no
+cf_save_CFLAGS="$CFLAGS"
+cf_save_CPPFLAGS="$CPPFLAGS"
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX			-qlanglvl=ansi
+# Ultrix and OSF/1	-std1
+# HP-UX			-Aa -D_HPUX_SOURCE
+# SVR4			-Xc
+# UnixWare 1.2		(cannot use -Xc, since ANSI/POSIX clashes)
+for cf_arg in "-DCC_HAS_PROTOS" \
+	"" \
+	-qlanglvl=ansi \
+	-std1 \
+	-Ae \
+	"-Aa -D_HPUX_SOURCE" \
+	-Xc
+do
+	CF_ADD_CFLAGS($cf_arg)
+	AC_TRY_COMPILE(
+[
+#ifndef CC_HAS_PROTOS
+#if !defined(__STDC__) || (__STDC__ != 1)
+choke me
+#endif
+#endif
+],[
+	int test (int i, double x);
+	struct s1 {int (*f) (int a);};
+	struct s2 {int (*f) (double a);};],
+	[cf_cv_ansi_cc="$cf_arg"; break])
+done
+CFLAGS="$cf_save_CFLAGS"
+CPPFLAGS="$cf_save_CPPFLAGS"
+])
+
+if test "$cf_cv_ansi_cc" != "no"; then
+if test ".$cf_cv_ansi_cc" != ".-DCC_HAS_PROTOS"; then
+	CF_ADD_CFLAGS($cf_cv_ansi_cc)
+else
+	AC_DEFINE(CC_HAS_PROTOS)
+fi
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ANSI_CC_REQD version: 3 updated: 1997/09/06 13:40:44
+dnl ---------------
+dnl For programs that must use an ANSI compiler, obtain compiler options that
+dnl will make it recognize prototypes.  We'll do preprocessor checks in other
+dnl macros, since tools such as unproto can fake prototypes, but only part of
+dnl the preprocessor.
+AC_DEFUN([CF_ANSI_CC_REQD],
+[AC_REQUIRE([CF_ANSI_CC_CHECK])
+if test "$cf_cv_ansi_cc" = "no"; then
+	AC_ERROR(
+[Your compiler does not appear to recognize prototypes.
+You have the following choices:
+	a. adjust your compiler options
+	b. get an up-to-date compiler
+	c. use a wrapper such as unproto])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
+dnl --------------
+dnl Allow user to disable a normally-on option.
+AC_DEFUN([CF_ARG_DISABLE],
+[CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
+dnl -------------
+dnl Allow user to enable a normally-off option.
+AC_DEFUN([CF_ARG_ENABLE],
+[CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ARG_OPTION version: 3 updated: 1997/10/18 14:42:41
+dnl -------------
+dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
+dnl values.
+dnl
+dnl Parameters:
+dnl $1 = option name
+dnl $2 = help-string
+dnl $3 = action to perform if option is not default
+dnl $4 = action if perform if option is default
+dnl $5 = default option value (either 'yes' or 'no')
+AC_DEFUN([CF_ARG_OPTION],
+[AC_ARG_ENABLE($1,[$2],[test "$enableval" != ifelse($5,no,yes,no) && enableval=ifelse($5,no,no,yes)
+  if test "$enableval" != "$5" ; then
+ifelse($3,,[    :]dnl
+,[    $3]) ifelse($4,,,[
+  else
+    $4])
+  fi],[enableval=$5 ifelse($4,,,[
+  $4
+])dnl
+  ])])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CHECK_CACHE version: 10 updated: 2004/05/23 13:03:31
+dnl --------------
+dnl Check if we're accidentally using a cache from a different machine.
+dnl Derive the system name, as a check for reusing the autoconf cache.
+dnl
+dnl If we've packaged config.guess and config.sub, run that (since it does a
+dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
+dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
+dnl which is useful in cross-compiles.
+dnl
+dnl Note: we would use $ac_config_sub, but that is one of the places where
+dnl autoconf 2.5x broke compatibility with autoconf 2.13
+AC_DEFUN([CF_CHECK_CACHE],
+[
+if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
+	ifelse([$1],,[AC_CANONICAL_HOST],[$1])
+	system_name="$host_os"
+else
+	system_name="`(uname -s -r) 2>/dev/null`"
+	if test -z "$system_name" ; then
+		system_name="`(hostname) 2>/dev/null`"
+	fi
+fi
+test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name")
+AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
+
+test -z "$system_name" && system_name="$cf_cv_system_name"
+test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
+
+if test ".$system_name" != ".$cf_cv_system_name" ; then
+	AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
+	AC_ERROR("Please remove config.cache and try again.")
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CHECK_CFLAGS version: 2 updated: 2001/12/30 19:09:58
+dnl ---------------
+dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
+dnl a build-configuration such as imake.  These have the pitfall that they
+dnl often contain compiler-specific options which we cannot use, mixed with
+dnl preprocessor options that we usually can.
+AC_DEFUN([CF_CHECK_CFLAGS],
+[
+CF_VERBOSE(checking additions to CFLAGS)
+cf_check_cflags="$CFLAGS"
+cf_check_cppflags="$CPPFLAGS"
+CF_ADD_CFLAGS($1,yes)
+if test "$cf_check_cflags" != "$CFLAGS" ; then
+AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
+	[CF_VERBOSE(test-compile failed.  Undoing change to \$CFLAGS)
+	 if test "$cf_check_cppflags" != "$CPPFLAGS" ; then
+		 CF_VERBOSE(but keeping change to \$CPPFLAGS)
+	 fi
+	 CFLAGS="$cf_check_flags"])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_ACS_MAP version: 3 updated: 2003/05/17 22:19:02
+dnl -----------------
+dnl Check for likely values of acs_map[]:
+AC_DEFUN([CF_CURSES_ACS_MAP],
+[
+AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
+cf_cv_curses_acs_map=unknown
+for name in acs_map _acs_map __acs_map _nc_acs_map
+do
+AC_TRY_LINK([
+#include <${cf_cv_ncurses_header-curses.h}>
+],[
+$name['k'] = ACS_PLUS
+],[cf_cv_curses_acs_map=$name; break])
+done
+])
+
+test "$cf_cv_curses_acs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_ACS_ARRAY,$cf_cv_curses_acs_map)
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_CHECK_TYPE version: 2 updated: 2003/03/01 23:40:33
+dnl --------------------
+dnl Check if curses.h defines the given type
+AC_DEFUN([CF_CURSES_CHECK_TYPE],
+[
+AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header-curses.h})
+AC_TRY_COMPILE([
+#ifndef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED
+#endif
+#include <${cf_cv_ncurses_header-curses.h}>],[
+$1 foo
+],cf_result=yes,cf_result=no)
+AC_MSG_RESULT($cf_result)
+if test $cf_result = yes ; then
+	CF_UPPER(cf_result,have_type_$1)
+	AC_DEFINE_UNQUOTED($cf_result)
+else
+	AC_DEFINE_UNQUOTED($1,$2)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_CPPFLAGS version: 9 updated: 2006/02/04 19:44:43
+dnl ------------------
+dnl Look for the curses headers.
+AC_DEFUN([CF_CURSES_CPPFLAGS],[
+
+AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
+cf_cv_curses_incdir=no
+case $host_os in #(vi
+hpux10.*) #(vi
+	test -d /usr/include/curses_colr && \
+	cf_cv_curses_incdir="-I/usr/include/curses_colr"
+	;;
+sunos3*|sunos4*)
+	test -d /usr/5lib && \
+	test -d /usr/5include && \
+	cf_cv_curses_incdir="-I/usr/5include"
+	;;
+esac
+])
+test "$cf_cv_curses_incdir" != no && CPPFLAGS="$cf_cv_curses_incdir $CPPFLAGS"
+
+CF_CURSES_HEADER
+CF_TERM_HEADER
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_FUNCS version: 13 updated: 2007/04/28 09:15:55
+dnl ---------------
+dnl Curses-functions are a little complicated, since a lot of them are macros.
+AC_DEFUN([CF_CURSES_FUNCS],
+[
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+AC_REQUIRE([CF_XOPEN_CURSES])
+AC_REQUIRE([CF_CURSES_TERM_H])
+for cf_func in $1
+do
+	CF_UPPER(cf_tr_func,$cf_func)
+	AC_MSG_CHECKING(for ${cf_func})
+	CF_MSG_LOG(${cf_func})
+	AC_CACHE_VAL(cf_cv_func_$cf_func,[
+		eval cf_result='$ac_cv_func_'$cf_func
+		if test ".$cf_result" != ".no"; then
+			AC_TRY_LINK([
+#ifdef HAVE_XCURSES
+#include <xcurses.h>
+char * XCursesProgramName = "test";
+#else
+#include <${cf_cv_ncurses_header-curses.h}>
+#if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
+#include <ncursesw/term.h>
+#else
+#if defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
+#include <ncurses/term.h>
+#else
+#ifdef HAVE_TERM_H
+#include <term.h>
+#endif
+#endif
+#endif
+#endif],
+			[
+#ifndef ${cf_func}
+long foo = (long)(&${cf_func});
+${cf_cv_main_return-return}(foo == 0);
+#endif
+			],
+			[cf_result=yes],
+			[cf_result=no])
+		fi
+		eval 'cf_cv_func_'$cf_func'=$cf_result'
+	])
+	# use the computed/retrieved cache-value:
+	eval 'cf_result=$cf_cv_func_'$cf_func
+	AC_MSG_RESULT($cf_result)
+	if test $cf_result != no; then
+		AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
+	fi
+done
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_HEADER version: 1 updated: 2005/12/31 13:28:25
+dnl ----------------
+dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
+dnl variations of ncurses' installs.
+dnl
+dnl See also CF_NCURSES_HEADER, which sets the same cache variable.
+AC_DEFUN([CF_CURSES_HEADER],[
+AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
+cf_cv_ncurses_header=none
+for cf_header in \
+	curses.h \
+	ncurses.h \
+	ncurses/curses.h \
+	ncurses/ncurses.h
+do
+AC_TRY_COMPILE([#include <${cf_header}>],
+	[initscr(); tgoto("?", 0,0)],
+	[cf_cv_ncurses_header=$cf_header; break],[])
+done
+])
+
+if test "$cf_cv_ncurses_header" = none ; then
+	AC_MSG_ERROR(No curses header-files found)
+fi
+
+# cheat, to get the right #define's for HAVE_NCURSES_H, etc.
+AC_CHECK_HEADERS($cf_cv_ncurses_header)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_LIBS version: 26 updated: 2007/07/29 10:32:40
+dnl --------------
+dnl Look for the curses libraries.  Older curses implementations may require
+dnl termcap/termlib to be linked as well.  Call CF_CURSES_CPPFLAGS first.
+AC_DEFUN([CF_CURSES_LIBS],[
+
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+AC_MSG_CHECKING(if we have identified curses libraries)
+AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+    [initscr(); tgoto("?", 0,0)],
+    cf_result=yes,
+    cf_result=no)
+AC_MSG_RESULT($cf_result)
+
+if test "$cf_result" = no ; then
+case $host_os in #(vi
+freebsd*) #(vi
+    AC_CHECK_LIB(mytinfo,tgoto,[LIBS="-lmytinfo $LIBS"])
+    ;;
+hpux10.*) #(vi
+    AC_CHECK_LIB(cur_colr,initscr,[
+        LIBS="-lcur_colr $LIBS"
+        ac_cv_func_initscr=yes
+        ],[
+    AC_CHECK_LIB(Hcurses,initscr,[
+        # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
+        LIBS="-lHcurses $LIBS"
+        CPPFLAGS="-D__HP_CURSES -D_HP_CURSES $CPPFLAGS"
+        ac_cv_func_initscr=yes
+        ])])
+    ;;
+linux*) # Suse Linux does not follow /usr/lib convention
+    CF_ADD_LIBDIR(/lib)
+    ;;
+sunos3*|sunos4*)
+    if test -d /usr/5lib ; then
+      CF_ADD_LIBDIR(/usr/5lib)
+      LIBS="$LIBS -lcurses -ltermcap"
+    fi
+    ac_cv_func_initscr=yes
+    ;;
+esac
+
+if test ".$ac_cv_func_initscr" != .yes ; then
+    cf_save_LIBS="$LIBS"
+    cf_term_lib=""
+    cf_curs_lib=""
+
+    if test ".${cf_cv_ncurses_version-no}" != .no
+    then
+        cf_check_list="ncurses curses cursesX"
+    else
+        cf_check_list="cursesX curses ncurses"
+    fi
+
+    # Check for library containing tgoto.  Do this before curses library
+    # because it may be needed to link the test-case for initscr.
+    AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
+        for cf_term_lib in $cf_check_list termcap termlib unknown
+        do
+            AC_CHECK_LIB($cf_term_lib,tgoto,[break])
+        done
+    ])
+
+    # Check for library containing initscr
+    test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
+    for cf_curs_lib in $cf_check_list xcurses jcurses unknown
+    do
+        AC_CHECK_LIB($cf_curs_lib,initscr,[break])
+    done
+    test $cf_curs_lib = unknown && AC_ERROR(no curses library found)
+
+    LIBS="-l$cf_curs_lib $cf_save_LIBS"
+    if test "$cf_term_lib" = unknown ; then
+        AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
+        AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+            [initscr()],
+            [cf_result=yes],
+            [cf_result=no])
+        AC_MSG_RESULT($cf_result)
+        test $cf_result = no && AC_ERROR(Cannot link curses library)
+    elif test "$cf_curs_lib" = "$cf_term_lib" ; then
+        :
+    elif test "$cf_term_lib" != predefined ; then
+        AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
+        AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+            [initscr(); tgoto((char *)0, 0, 0);],
+            [cf_result=no],
+            [
+            LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
+            AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+                [initscr()],
+                [cf_result=yes],
+                [cf_result=error])
+            ])
+        AC_MSG_RESULT($cf_result)
+    fi
+fi
+fi
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_TERM_H version: 6 updated: 2003/11/06 19:59:57
+dnl ----------------
+dnl SVr4 curses should have term.h as well (where it puts the definitions of
+dnl the low-level interface).  This may not be true in old/broken implementations,
+dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
+dnl running with Solaris 2.5.1).
+AC_DEFUN([CF_CURSES_TERM_H],
+[
+AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
+
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+# If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
+# for <term.h> if we do not find the variant.
+for cf_header in \
+	`echo ${cf_cv_ncurses_header-curses.h} | sed -e 's%/.*%/%'`term.h \
+	term.h
+do
+	AC_TRY_COMPILE([
+#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_header}>],
+	[WINDOW *x],
+	[cf_cv_term_header=$cf_header
+	 break],
+	[cf_cv_term_header=no])
+done
+])
+
+case $cf_cv_term_header in #(vi
+term.h) #(vi
+	AC_DEFINE(HAVE_TERM_H)
+	;;
+ncurses/term.h)
+	AC_DEFINE(HAVE_NCURSES_TERM_H)
+	;;
+ncursesw/term.h)
+	AC_DEFINE(HAVE_NCURSESW_TERM_H)
+	;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_WACS_MAP version: 3 updated: 2003/05/17 22:19:02
+dnl ------------------
+dnl Check for likely values of wacs_map[]:
+AC_DEFUN([CF_CURSES_WACS_MAP],
+[
+AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
+	cf_cv_curses_wacs_map=unknown
+	for name in wacs_map _wacs_map __wacs_map _nc_wacs
+	do
+	AC_TRY_LINK([
+#ifndef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED
+#endif
+#include <${cf_cv_ncurses_header-curses.h}>],
+	[$name['k'] = *WACS_PLUS],
+	[cf_cv_curses_wacs_map=$name
+	 break])
+	done])
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
+dnl ----------
+dnl "dirname" is not portable, so we fake it with a shell script.
+AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_ECHO version: 10 updated: 2003/04/17 22:27:11
+dnl ---------------
+dnl You can always use "make -n" to see the actual options, but it's hard to
+dnl pick out/analyze warning messages when the compile-line is long.
+dnl
+dnl Sets:
+dnl	ECHO_LT - symbol to control if libtool is verbose
+dnl	ECHO_LD - symbol to prefix "cc -o" lines
+dnl	RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
+dnl	SHOW_CC - symbol to put before explicit "cc -c" lines
+dnl	ECHO_CC - symbol to put before any "cc" line
+dnl
+AC_DEFUN([CF_DISABLE_ECHO],[
+AC_MSG_CHECKING(if you want to see long compiling messages)
+CF_ARG_DISABLE(echo,
+	[  --disable-echo          display "compiling" commands],
+	[
+    ECHO_LT='--silent'
+    ECHO_LD='@echo linking [$]@;'
+    RULE_CC='	@echo compiling [$]<'
+    SHOW_CC='	@echo compiling [$]@'
+    ECHO_CC='@'
+],[
+    ECHO_LT=''
+    ECHO_LD=''
+    RULE_CC='# compiling'
+    SHOW_CC='# compiling'
+    ECHO_CC=''
+])
+AC_MSG_RESULT($enableval)
+AC_SUBST(ECHO_LT)
+AC_SUBST(ECHO_LD)
+AC_SUBST(RULE_CC)
+AC_SUBST(SHOW_CC)
+AC_SUBST(ECHO_CC)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ENABLE_WARNINGS version: 3 updated: 2003/05/24 14:24:29
+dnl ------------------
+dnl Configure-option to enable gcc warnings
+AC_DEFUN([CF_ENABLE_WARNINGS],[
+if ( test "$GCC" = yes || test "$GXX" = yes )
+then
+AC_MSG_CHECKING(if you want to turn on gcc warnings)
+CF_ARG_ENABLE(warnings,
+	[  --enable-warnings       test: turn on gcc compiler warnings],
+	[with_warnings=yes],
+	[with_warnings=no])
+AC_MSG_RESULT($with_warnings)
+if test "$with_warnings" = "yes"
+then
+	CF_GCC_WARNINGS
+fi
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_FIND_LIBRARY version: 8 updated: 2004/11/23 20:14:58
+dnl ---------------
+dnl Look for a non-standard library, given parameters for AC_TRY_LINK.  We
+dnl prefer a standard location, and use -L options only if we do not find the
+dnl library in the standard library location(s).
+dnl	$1 = library name
+dnl	$2 = library class, usually the same as library name
+dnl	$3 = includes
+dnl	$4 = code fragment to compile/link
+dnl	$5 = corresponding function-name
+dnl	$6 = flag, nonnull if failure should not cause an error-exit
+dnl
+dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
+dnl to use a -L option.
+AC_DEFUN([CF_FIND_LIBRARY],
+[
+	eval 'cf_cv_have_lib_'$1'=no'
+	cf_libdir=""
+	AC_CHECK_FUNC($5,
+		eval 'cf_cv_have_lib_'$1'=yes',[
+		cf_save_LIBS="$LIBS"
+		AC_MSG_CHECKING(for $5 in -l$1)
+		LIBS="-l$1 $LIBS"
+		AC_TRY_LINK([$3],[$4],
+			[AC_MSG_RESULT(yes)
+			 eval 'cf_cv_have_lib_'$1'=yes'
+			],
+			[AC_MSG_RESULT(no)
+			CF_LIBRARY_PATH(cf_search,$2)
+			for cf_libdir in $cf_search
+			do
+				AC_MSG_CHECKING(for -l$1 in $cf_libdir)
+				LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
+				AC_TRY_LINK([$3],[$4],
+					[AC_MSG_RESULT(yes)
+			 		 eval 'cf_cv_have_lib_'$1'=yes'
+					 break],
+					[AC_MSG_RESULT(no)
+					 LIBS="$cf_save_LIBS"])
+			done
+			])
+		])
+eval 'cf_found_library=[$]cf_cv_have_lib_'$1
+ifelse($6,,[
+if test $cf_found_library = no ; then
+	AC_ERROR(Cannot link $1 library)
+fi
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_FUNC_CURSES_VERSION version: 4 updated: 2007/04/28 09:15:55
+dnl ----------------------
+dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
+dnl It's a character string "SVR4", not documented.
+AC_DEFUN([CF_FUNC_CURSES_VERSION],
+[
+AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
+AC_TRY_RUN([
+#include <${cf_cv_ncurses_header-curses.h}>
+int main()
+{
+	char temp[1024];
+	sprintf(temp, "%s\n", curses_version());
+	${cf_cv_main_return-return}(0);
+}]
+,[cf_cv_func_curses_version=yes]
+,[cf_cv_func_curses_version=no]
+,[cf_cv_func_curses_version=unknown])
+rm -f core])
+test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION)
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_ATTRIBUTES version: 11 updated: 2007/07/29 09:55:12
+dnl -----------------
+dnl Test for availability of useful gcc __attribute__ directives to quiet
+dnl compiler warnings.  Though useful, not all are supported -- and contrary
+dnl to documentation, unrecognized directives cause older compilers to barf.
+AC_DEFUN([CF_GCC_ATTRIBUTES],
+[
+if test "$GCC" = yes
+then
+cat > conftest.i <<EOF
+#ifndef GCC_PRINTF
+#define GCC_PRINTF 0
+#endif
+#ifndef GCC_SCANF
+#define GCC_SCANF 0
+#endif
+#ifndef GCC_NORETURN
+#define GCC_NORETURN /* nothing */
+#endif
+#ifndef GCC_UNUSED
+#define GCC_UNUSED /* nothing */
+#endif
+EOF
+if test "$GCC" = yes
+then
+	AC_CHECKING([for $CC __attribute__ directives])
+cat > conftest.$ac_ext <<EOF
+#line __oline__ "${as_me-configure}"
+#include "confdefs.h"
+#include "conftest.h"
+#include "conftest.i"
+#if	GCC_PRINTF
+#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
+#else
+#define GCC_PRINTFLIKE(fmt,var) /*nothing*/
+#endif
+#if	GCC_SCANF
+#define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
+#else
+#define GCC_SCANFLIKE(fmt,var)  /*nothing*/
+#endif
+extern void wow(char *,...) GCC_SCANFLIKE(1,2);
+extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
+extern void foo(void) GCC_NORETURN;
+int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
+EOF
+	for cf_attribute in scanf printf unused noreturn
+	do
+		CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
+		cf_directive="__attribute__(($cf_attribute))"
+		echo "checking for $CC $cf_directive" 1>&AC_FD_CC
+		case $cf_attribute in
+		scanf|printf)
+		cat >conftest.h <<EOF
+#define GCC_$cf_ATTRIBUTE 1
+EOF
+			;;
+		*)
+		cat >conftest.h <<EOF
+#define GCC_$cf_ATTRIBUTE $cf_directive
+EOF
+			;;
+		esac
+		if AC_TRY_EVAL(ac_compile); then
+			test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
+			cat conftest.h >>confdefs.h
+		fi
+	done
+else
+	fgrep define conftest.i >>confdefs.h
+fi
+rm -rf conftest*
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_VERSION version: 4 updated: 2005/08/27 09:53:42
+dnl --------------
+dnl Find version of gcc
+AC_DEFUN([CF_GCC_VERSION],[
+AC_REQUIRE([AC_PROG_CC])
+GCC_VERSION=none
+if test "$GCC" = yes ; then
+	AC_MSG_CHECKING(version of $CC)
+	GCC_VERSION="`${CC} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
+	test -z "$GCC_VERSION" && GCC_VERSION=unknown
+	AC_MSG_RESULT($GCC_VERSION)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GCC_WARNINGS version: 22 updated: 2007/07/29 09:55:12
+dnl ---------------
+dnl Check if the compiler supports useful warning options.  There's a few that
+dnl we don't use, simply because they're too noisy:
+dnl
+dnl	-Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
+dnl	-Wredundant-decls (system headers make this too noisy)
+dnl	-Wtraditional (combines too many unrelated messages, only a few useful)
+dnl	-Wwrite-strings (too noisy, but should review occasionally).  This
+dnl		is enabled for ncurses using "--enable-const".
+dnl	-pedantic
+dnl
+dnl Parameter:
+dnl	$1 is an optional list of gcc warning flags that a particular
+dnl		application might want to use, e.g., "no-unused" for
+dnl		-Wno-unused
+dnl Special:
+dnl	If $with_ext_const is "yes", add a check for -Wwrite-strings
+dnl
+AC_DEFUN([CF_GCC_WARNINGS],
+[
+AC_REQUIRE([CF_GCC_VERSION])
+CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
+
+cat > conftest.$ac_ext <<EOF
+#line __oline__ "${as_me-configure}"
+int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
+EOF
+
+if test "$INTEL_COMPILER" = yes
+then
+# The "-wdXXX" options suppress warnings:
+# remark #1419: external declaration in primary source file
+# remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
+# remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
+# remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
+# remark #193: zero used for undefined preprocessing identifier
+# remark #593: variable "curs_sb_left_arrow" was set but never used
+# remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
+# remark #869: parameter "tw" was never referenced
+# remark #981: operands are evaluated in unspecified order
+# warning #269: invalid format string conversion
+
+	AC_CHECKING([for $CC warning options])
+	cf_save_CFLAGS="$CFLAGS"
+	EXTRA_CFLAGS="-Wall"
+	for cf_opt in \
+		wd1419 \
+		wd1682 \
+		wd1683 \
+		wd1684 \
+		wd193 \
+		wd279 \
+		wd593 \
+		wd810 \
+		wd869 \
+		wd981
+	do
+		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
+		if AC_TRY_EVAL(ac_compile); then
+			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
+			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
+		fi
+	done
+	CFLAGS="$cf_save_CFLAGS"
+
+elif test "$GCC" = yes
+then
+	AC_CHECKING([for $CC warning options])
+	cf_save_CFLAGS="$CFLAGS"
+	EXTRA_CFLAGS="-W -Wall"
+	cf_warn_CONST=""
+	test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
+	for cf_opt in \
+		Wbad-function-cast \
+		Wcast-align \
+		Wcast-qual \
+		Winline \
+		Wmissing-declarations \
+		Wmissing-prototypes \
+		Wnested-externs \
+		Wpointer-arith \
+		Wshadow \
+		Wstrict-prototypes \
+		Wundef $cf_warn_CONST $1
+	do
+		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
+		if AC_TRY_EVAL(ac_compile); then
+			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
+			case $cf_opt in #(vi
+			Wcast-qual) #(vi
+				CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
+				;;
+			Winline) #(vi
+				case $GCC_VERSION in
+				3.3*)
+					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
+					continue;;
+				esac
+				;;
+			esac
+			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
+		fi
+	done
+	CFLAGS="$cf_save_CFLAGS"
+fi
+rm -f conftest*
+
+AC_SUBST(EXTRA_CFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
+dnl -------------
+dnl Check if we must define _GNU_SOURCE to get a reasonable value for
+dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
+dnl (or misfeature) of glibc2, which breaks portability of many applications,
+dnl since it is interwoven with GNU extensions.
+dnl
+dnl Well, yes we could work around it...
+AC_DEFUN([CF_GNU_SOURCE],
+[
+AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+	[cf_cv_gnu_source=no],
+	[cf_save="$CPPFLAGS"
+	 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+	 AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+	[cf_cv_gnu_source=no],
+	[cf_cv_gnu_source=yes])
+	CPPFLAGS="$cf_save"
+	])
+])
+test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_HEADER_PATH version: 8 updated: 2002/11/10 14:46:59
+dnl --------------
+dnl Construct a search-list for a nonstandard header-file
+AC_DEFUN([CF_HEADER_PATH],
+[CF_SUBDIR_PATH($1,$2,include)
+test "$includedir" != NONE && \
+test "$includedir" != "/usr/include" && \
+test -d "$includedir" && {
+	test -d $includedir &&    $1="[$]$1 $includedir"
+	test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
+}
+
+test "$oldincludedir" != NONE && \
+test "$oldincludedir" != "/usr/include" && \
+test -d "$oldincludedir" && {
+	test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
+	test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
+}
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
+dnl -----------------
+dnl If we do not have a given script, look for it in the parent directory.
+AC_DEFUN([CF_INHERIT_SCRIPT],
+[
+test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INTEL_COMPILER version: 3 updated: 2005/08/06 18:37:29
+dnl -----------------
+dnl Check if the given compiler is really the Intel compiler for Linux.  It
+dnl tries to imitate gcc, but does not return an error when it finds a mismatch
+dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
+dnl
+dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
+dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
+dnl the wrappers for gcc and g++ warnings.
+dnl
+dnl $1 = GCC (default) or GXX
+dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
+dnl $3 = CFLAGS (default) or CXXFLAGS
+AC_DEFUN([CF_INTEL_COMPILER],[
+ifelse($2,,INTEL_COMPILER,[$2])=no
+
+if test "$ifelse($1,,[$1],GCC)" = yes ; then
+	case $host_os in
+	linux*|gnu*)
+		AC_MSG_CHECKING(if this is really Intel ifelse($1,GXX,C++,C) compiler)
+		cf_save_CFLAGS="$ifelse($3,,CFLAGS,[$3])"
+		ifelse($3,,CFLAGS,[$3])="$ifelse($3,,CFLAGS,[$3]) -no-gcc"
+		AC_TRY_COMPILE([],[
+#ifdef __INTEL_COMPILER
+#else
+make an error
+#endif
+],[ifelse($2,,INTEL_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
+],[])
+		ifelse($3,,CFLAGS,[$3])="$cf_save_CFLAGS"
+		AC_MSG_RESULT($ifelse($2,,INTEL_COMPILER,[$2]))
+		;;
+	esac
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_LIBRARY_PATH version: 7 updated: 2002/11/10 14:46:59
+dnl ---------------
+dnl Construct a search-list for a nonstandard library-file
+AC_DEFUN([CF_LIBRARY_PATH],
+[CF_SUBDIR_PATH($1,$2,lib)])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_MSG_LOG version: 4 updated: 2007/07/29 09:55:12
+dnl ----------
+dnl Write a debug message to config.log, along with the line number in the
+dnl configure script.
+AC_DEFUN([CF_MSG_LOG],[
+echo "${as_me-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NCURSES_CC_CHECK version: 4 updated: 2007/07/29 10:39:05
+dnl -------------------
+dnl Check if we can compile with ncurses' header file
+dnl $1 is the cache variable to set
+dnl $2 is the header-file to include
+dnl $3 is the root name (ncurses or ncursesw)
+AC_DEFUN([CF_NCURSES_CC_CHECK],[
+	AC_TRY_COMPILE([
+]ifelse($3,ncursesw,[
+#define _XOPEN_SOURCE_EXTENDED
+#undef  HAVE_LIBUTF8_H	/* in case we used CF_UTF8_LIB */
+#define HAVE_LIBUTF8_H	/* to force ncurses' header file to use cchar_t */
+])[
+#include <$2>],[
+#ifdef NCURSES_VERSION
+]ifelse($3,ncursesw,[
+#ifndef WACS_BSSB
+	make an error
+#endif
+])[
+printf("%s\n", NCURSES_VERSION);
+#else
+#ifdef __NCURSES_H
+printf("old\n");
+#else
+	make an error
+#endif
+#endif
+	]
+	,[$1=$2]
+	,[$1=no])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NCURSES_CPPFLAGS version: 19 updated: 2007/07/29 13:35:20
+dnl -------------------
+dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
+dnl the CPPFLAGS variable so we can include its header.
+dnl
+dnl The header files may be installed as either curses.h, or ncurses.h (would
+dnl be obsolete, except that some packagers prefer this name to distinguish it
+dnl from a "native" curses implementation).  If not installed for overwrite,
+dnl the curses.h file would be in an ncurses subdirectory (e.g.,
+dnl /usr/include/ncurses), but someone may have installed overwriting the
+dnl vendor's curses.  Only very old versions (pre-1.9.2d, the first autoconf'd
+dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
+dnl the header.
+dnl
+dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
+dnl is already in the include-path, don't even bother with this, since we cannot
+dnl easily determine which file it is.  In this case, it has to be <curses.h>.
+dnl
+dnl The optional parameter gives the root name of the library, in case it is
+dnl not installed as the default curses library.  That is how the
+dnl wide-character version of ncurses is installed.
+AC_DEFUN([CF_NCURSES_CPPFLAGS],
+[AC_REQUIRE([CF_WITH_CURSES_DIR])
+
+AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
+cf_ncuhdr_root=ifelse($1,,ncurses,$1)
+
+test -n "$cf_cv_curses_dir" && \
+test "$cf_cv_curses_dir" != "no" && { \
+  CF_ADD_INCDIR($cf_cv_curses_dir/include $cf_cv_curses_dir/include/$cf_ncuhdr_root)
+}
+
+AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
+	cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
+	( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
+	for cf_header in $cf_header_list
+	do
+		CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
+		test "$cf_cv_ncurses_h" != no && break
+	done
+])
+
+CF_NCURSES_HEADER
+CF_TERM_HEADER
+
+# some applications need this, but should check for NCURSES_VERSION
+AC_DEFINE(NCURSES)
+
+CF_NCURSES_VERSION
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NCURSES_HEADER version: 1 updated: 2005/12/31 13:28:37
+dnl -----------------
+dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
+dnl variations of ncurses' installs.
+dnl
+dnl See also CF_CURSES_HEADER, which sets the same cache variable.
+AC_DEFUN([CF_NCURSES_HEADER],[
+
+if test "$cf_cv_ncurses_h" != no ; then
+	cf_cv_ncurses_header=$cf_cv_ncurses_h
+else
+
+AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
+	test -n "$verbose" && echo
+	CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
+	test -n "$verbose" && echo search path $cf_search
+	cf_save2_CPPFLAGS="$CPPFLAGS"
+	for cf_incdir in $cf_search
+	do
+		CF_ADD_INCDIR($cf_incdir)
+		for cf_header in \
+			ncurses.h \
+			curses.h
+		do
+			CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
+			if test "$cf_cv_ncurses_h2" != no ; then
+				cf_cv_ncurses_h2=$cf_incdir/$cf_header
+				test -n "$verbose" && echo $ac_n "	... found $ac_c" 1>&AC_FD_MSG
+				break
+			fi
+			test -n "$verbose" && echo "	... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
+		done
+		CPPFLAGS="$cf_save2_CPPFLAGS"
+		test "$cf_cv_ncurses_h2" != no && break
+	done
+	test "$cf_cv_ncurses_h2" = no && AC_ERROR(not found)
+	])
+
+	CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
+	cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
+	if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
+		cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
+	fi
+	CF_ADD_INCDIR($cf_1st_incdir)
+
+fi
+
+# Set definitions to allow ifdef'ing for ncurses.h
+
+case $cf_cv_ncurses_header in # (vi
+*ncurses.h)
+	AC_DEFINE(HAVE_NCURSES_H)
+	;;
+esac
+
+case $cf_cv_ncurses_header in # (vi
+ncurses/curses.h|ncurses/ncurses.h)
+	AC_DEFINE(HAVE_NCURSES_NCURSES_H)
+	;;
+ncursesw/curses.h|ncursesw/ncurses.h)
+	AC_DEFINE(HAVE_NCURSESW_NCURSES_H)
+	;;
+esac
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NCURSES_LIBS version: 13 updated: 2007/07/29 10:29:20
+dnl ---------------
+dnl Look for the ncurses library.  This is a little complicated on Linux,
+dnl because it may be linked with the gpm (general purpose mouse) library.
+dnl Some distributions have gpm linked with (bsd) curses, which makes it
+dnl unusable with ncurses.  However, we don't want to link with gpm unless
+dnl ncurses has a dependency, since gpm is normally set up as a shared library,
+dnl and the linker will record a dependency.
+dnl
+dnl The optional parameter gives the root name of the library, in case it is
+dnl not installed as the default curses library.  That is how the
+dnl wide-character version of ncurses is installed.
+AC_DEFUN([CF_NCURSES_LIBS],
+[AC_REQUIRE([CF_NCURSES_CPPFLAGS])
+
+cf_nculib_root=ifelse($1,,ncurses,$1)
+	# This works, except for the special case where we find gpm, but
+	# ncurses is in a nonstandard location via $LIBS, and we really want
+	# to link gpm.
+cf_ncurses_LIBS=""
+cf_ncurses_SAVE="$LIBS"
+AC_CHECK_LIB(gpm,Gpm_Open,
+	[AC_CHECK_LIB(gpm,initscr,
+		[LIBS="$cf_ncurses_SAVE"],
+		[cf_ncurses_LIBS="-lgpm"])])
+
+case $host_os in #(vi
+freebsd*)
+	# This is only necessary if you are linking against an obsolete
+	# version of ncurses (but it should do no harm, since it's static).
+	if test "$cf_nculib_root" = ncurses ; then
+		AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
+	fi
+	;;
+esac
+
+LIBS="$cf_ncurses_LIBS $LIBS"
+
+if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
+then
+	CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
+	LIBS="-l$cf_nculib_root $LIBS"
+else
+	CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
+		[#include <${cf_cv_ncurses_header-curses.h}>],
+		[initscr()],
+		initscr)
+fi
+
+if test -n "$cf_ncurses_LIBS" ; then
+	AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
+	cf_ncurses_SAVE="$LIBS"
+	for p in $cf_ncurses_LIBS ; do
+		q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
+		if test "$q" != "$LIBS" ; then
+			LIBS="$q"
+		fi
+	done
+	AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+		[initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
+		[AC_MSG_RESULT(yes)],
+		[AC_MSG_RESULT(no)
+		 LIBS="$cf_ncurses_SAVE"])
+fi
+
+CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
+AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NCURSES_VERSION version: 12 updated: 2007/04/28 09:15:55
+dnl ------------------
+dnl Check for the version of ncurses, to aid in reporting bugs, etc.
+dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
+dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
+AC_DEFUN([CF_NCURSES_VERSION],
+[
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
+	cf_cv_ncurses_version=no
+	cf_tempfile=out$$
+	rm -f $cf_tempfile
+	AC_TRY_RUN([
+#include <${cf_cv_ncurses_header-curses.h}>
+#include <stdio.h>
+int main()
+{
+	FILE *fp = fopen("$cf_tempfile", "w");
+#ifdef NCURSES_VERSION
+# ifdef NCURSES_VERSION_PATCH
+	fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
+# else
+	fprintf(fp, "%s\n", NCURSES_VERSION);
+# endif
+#else
+# ifdef __NCURSES_H
+	fprintf(fp, "old\n");
+# else
+	make an error
+# endif
+#endif
+	${cf_cv_main_return-return}(0);
+}],[
+	cf_cv_ncurses_version=`cat $cf_tempfile`],,[
+
+	# This will not work if the preprocessor splits the line after the
+	# Autoconf token.  The 'unproto' program does that.
+	cat > conftest.$ac_ext <<EOF
+#include <${cf_cv_ncurses_header-curses.h}>
+#undef Autoconf
+#ifdef NCURSES_VERSION
+Autoconf NCURSES_VERSION
+#else
+#ifdef __NCURSES_H
+Autoconf "old"
+#endif
+;
+#endif
+EOF
+	cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
+	AC_TRY_EVAL(cf_try)
+	if test -f conftest.out ; then
+		cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%'`
+		test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
+		rm -f conftest.out
+	fi
+])
+	rm -f $cf_tempfile
+])
+test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PATH_SYNTAX version: 11 updated: 2006/09/02 08:55:46
+dnl --------------
+dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
+dnl begins with one of the prefix/exec_prefix variables, and then again if the
+dnl result begins with 'NONE'.  This is necessary to work around autoconf's
+dnl delayed evaluation of those symbols.
+AC_DEFUN([CF_PATH_SYNTAX],[
+if test "x$prefix" != xNONE; then
+  cf_path_syntax="$prefix"
+else
+  cf_path_syntax="$ac_default_prefix"
+fi
+
+case ".[$]$1" in #(vi
+.\[$]\(*\)*|.\'*\'*) #(vi
+  ;;
+..|./*|.\\*) #(vi
+  ;;
+.[[a-zA-Z]]:[[\\/]]*) #(vi OS/2 EMX
+  ;;
+.\[$]{*prefix}*) #(vi
+  eval $1="[$]$1"
+  case ".[$]$1" in #(vi
+  .NONE/*)
+    $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+    ;;
+  esac
+  ;; #(vi
+.no|.NONE/*)
+  $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+  ;;
+*)
+  ifelse($2,,[AC_ERROR([expected a pathname, not \"[$]$1\"])],$2)
+  ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PDCURSES_X11 version: 7 updated: 2006/11/12 17:31:59
+dnl ---------------
+dnl Configure for PDCurses' X11 library
+AC_DEFUN([CF_PDCURSES_X11],[
+AC_REQUIRE([CF_X_ATHENA])
+
+AC_PATH_PROGS(XCURSES_CONFIG,xcurses-config,none)
+
+if test "$XCURSES_CONFIG" != none ; then
+
+CPPFLAGS="`$XCURSES_CONFIG --cflags` $CPPFLAGS"
+LIBS="`$XCURSES_CONFIG --libs` $LIBS"
+
+cf_cv_lib_XCurses=yes
+
+else
+
+LDFLAGS="$LDFLAGS $X_LIBS"
+CF_CHECK_CFLAGS($X_CFLAGS)
+AC_CHECK_LIB(X11,XOpenDisplay,
+	[LIBS="-lX11 $LIBS"],,
+	[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
+AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
+LIBS="-lXCurses $LIBS"
+AC_TRY_LINK([
+#include <xcurses.h>
+char *XCursesProgramName = "test";
+],[XCursesExit();],
+[cf_cv_lib_XCurses=yes],
+[cf_cv_lib_XCurses=no])
+])
+
+fi
+
+if test $cf_cv_lib_XCurses = yes ; then
+	AC_DEFINE(UNIX)
+	AC_DEFINE(XCURSES)
+	AC_DEFINE(HAVE_XCURSES)
+else
+	AC_ERROR(Cannot link with XCurses)
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_POSIX_C_SOURCE version: 6 updated: 2005/07/14 20:25:10
+dnl -----------------
+dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
+dnl
+dnl	POSIX.1-1990				_POSIX_SOURCE
+dnl	POSIX.1-1990 and			_POSIX_SOURCE and
+dnl		POSIX.2-1992 C-Language			_POSIX_C_SOURCE=2
+dnl		Bindings Option
+dnl	POSIX.1b-1993				_POSIX_C_SOURCE=199309L
+dnl	POSIX.1c-1996				_POSIX_C_SOURCE=199506L
+dnl	X/Open 2000				_POSIX_C_SOURCE=200112L
+dnl
+dnl Parameters:
+dnl	$1 is the nominal value for _POSIX_C_SOURCE
+AC_DEFUN([CF_POSIX_C_SOURCE],
+[
+cf_POSIX_C_SOURCE=ifelse($1,,199506L,$1)
+
+cf_save_CFLAGS="$CFLAGS"
+cf_save_CPPFLAGS="$CPPFLAGS"
+
+CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
+CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
+
+AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
+	CF_MSG_LOG(if the symbol is already defined go no further)
+	AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _POSIX_C_SOURCE
+make an error
+#endif],
+	[cf_cv_posix_c_source=no],
+	[cf_want_posix_source=no
+	 case .$cf_POSIX_C_SOURCE in #(vi
+	 .[[12]]??*) #(vi
+		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
+		;;
+	 .2) #(vi
+		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
+		cf_want_posix_source=yes
+		;;
+	 .*)
+		cf_want_posix_source=yes
+		;;
+	 esac
+	 if test "$cf_want_posix_source" = yes ; then
+		AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _POSIX_SOURCE
+make an error
+#endif],[],
+		cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
+	 fi
+	 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
+	 CFLAGS="$cf_trim_CFLAGS"
+	 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
+	 CF_MSG_LOG(if the second compile does not leave our definition intact error)
+	 AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _POSIX_C_SOURCE
+make an error
+#endif],,
+	 [cf_cv_posix_c_source=no])
+	 CFLAGS="$cf_save_CFLAGS"
+	 CPPFLAGS="$cf_save_CPPFLAGS"
+	])
+])
+
+if test "$cf_cv_posix_c_source" != no ; then
+	CFLAGS="$cf_trim_CFLAGS"
+	CPPFLAGS="$cf_trim_CPPFLAGS"
+	if test "$cf_cv_cc_u_d_options" = yes ; then
+		cf_temp_posix_c_source=`echo "$cf_cv_posix_c_source" | \
+				sed -e 's/-D/-U/g' -e 's/=[[^ 	]]*//g'`
+		CPPFLAGS="$CPPFLAGS $cf_temp_posix_c_source"
+	fi
+	CPPFLAGS="$CPPFLAGS $cf_cv_posix_c_source"
+fi
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PRG_RULES version: 1 updated: 2006/06/03 11:45:08
+dnl ------------
+dnl Append definitions and rules for the given programs to the subdirectory
+dnl Makefiles, and the recursion rule for the top-level Makefile.
+dnl
+dnl parameters
+dnl	$1 = script to run
+dnl	$2 = list of subdirectories
+dnl
+dnl variables
+dnl	$AWK
+AC_DEFUN([CF_PRG_RULES],
+[
+for cf_dir in $2
+do
+	if test ! -d $srcdir/$cf_dir; then
+		continue
+	elif test -f $srcdir/$cf_dir/programs; then
+		$AWK -f $1 $srcdir/$cf_dir/programs >>$cf_dir/Makefile
+	fi
+done
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_CC_U_D version: 1 updated: 2005/07/14 16:59:30
+dnl --------------
+dnl Check if C (preprocessor) -U and -D options are processed in the order
+dnl given rather than by type of option.  Some compilers insist on apply all
+dnl of the -U options after all of the -D options.  Others allow mixing them,
+dnl and may predefine symbols that conflict with those we define.
+AC_DEFUN([CF_PROG_CC_U_D],
+[
+AC_CACHE_CHECK(if $CC -U and -D options work together,cf_cv_cc_u_d_options,[
+	cf_save_CPPFLAGS="$CPPFLAGS"
+	CPPFLAGS="-UU_D_OPTIONS -DU_D_OPTIONS -DD_U_OPTIONS -UD_U_OPTIONS"
+	AC_TRY_COMPILE([],[
+#ifndef U_D_OPTIONS
+make an undefined-error
+#endif
+#ifdef  D_U_OPTIONS
+make a defined-error
+#endif
+	],[
+	cf_cv_cc_u_d_options=yes],[
+	cf_cv_cc_u_d_options=no])
+	CPPFLAGS="$cf_save_CPPFLAGS"
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_REMOVE_DEFINE version: 2 updated: 2005/07/09 16:12:18
+dnl ----------------
+dnl Remove all -U and -D options that refer to the given symbol from a list
+dnl of C compiler options.  This works around the problem that not all
+dnl compilers process -U and -D options from left-to-right, so a -U option
+dnl cannot be used to cancel the effect of a preceding -D option.
+dnl
+dnl $1 = target (which could be the same as the source variable)
+dnl $2 = source (including '$')
+dnl $3 = symbol to remove
+define([CF_REMOVE_DEFINE],
+[
+# remove $3 symbol from $2
+$1=`echo "$2" | \
+	sed	-e 's/-[[UD]]$3\(=[[^ 	]]*\)\?[[ 	]]/ /g' \
+		-e 's/-[[UD]]$3\(=[[^ 	]]*\)\?[$]//g'`
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SIG_ATOMIC_T version: 2 updated: 2005/09/18 17:27:12
+dnl ---------------
+dnl signal handler, but there are some gcc depedencies in that recommendation.
+dnl Try anyway.
+AC_DEFUN([CF_SIG_ATOMIC_T],
+[
+AC_MSG_CHECKING(for signal global datatype)
+AC_CACHE_VAL(cf_cv_sig_atomic_t,[
+	for cf_type in \
+		"volatile sig_atomic_t" \
+		"sig_atomic_t" \
+		"int"
+	do
+	AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <signal.h>
+#include <stdio.h>
+
+extern $cf_type x;
+$cf_type x;
+static void handler(int sig)
+{
+	x = 5;
+}],
+		[signal(SIGINT, handler);
+		 x = 1],
+		[cf_cv_sig_atomic_t=$cf_type],
+		[cf_cv_sig_atomic_t=no])
+		test "$cf_cv_sig_atomic_t" != no && break
+	done
+	])
+AC_MSG_RESULT($cf_cv_sig_atomic_t)
+test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SUBDIR_PATH version: 5 updated: 2007/07/29 09:55:12
+dnl --------------
+dnl Construct a search-list for a nonstandard header/lib-file
+dnl	$1 = the variable to return as result
+dnl	$2 = the package name
+dnl	$3 = the subdirectory, e.g., bin, include or lib
+AC_DEFUN([CF_SUBDIR_PATH],
+[$1=""
+
+CF_ADD_SUBDIR_PATH($1,$2,$3,/usr,$prefix)
+CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
+CF_ADD_SUBDIR_PATH($1,$2,$3,/usr/local,$prefix)
+CF_ADD_SUBDIR_PATH($1,$2,$3,/opt,$prefix)
+CF_ADD_SUBDIR_PATH($1,$2,$3,[$]HOME,$prefix)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SYS_TIME_SELECT version: 4 updated: 2000/10/04 09:18:40
+dnl ------------------
+dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
+dnl older SCO configurations.
+AC_DEFUN([CF_SYS_TIME_SELECT],
+[
+AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
+AC_CACHE_VAL(cf_cv_sys_time_select,[
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+],[],[cf_cv_sys_time_select=yes],
+     [cf_cv_sys_time_select=no])
+     ])
+AC_MSG_RESULT($cf_cv_sys_time_select)
+test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_TERM_HEADER version: 1 updated: 2005/12/31 13:26:39
+dnl --------------
+dnl Look for term.h, which is part of X/Open curses.  It defines the interface
+dnl to terminfo database.  Usually it is in the same include-path as curses.h,
+dnl but some packagers change this, breaking various applications.
+AC_DEFUN([CF_TERM_HEADER],[
+AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
+case ${cf_cv_ncurses_header} in #(vi
+*/ncurses.h|*/ncursesw.h) #(vi
+	cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
+	;;
+*)
+	cf_term_header=term.h
+	;;
+esac
+
+for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
+do
+AC_TRY_COMPILE([#include <stdio.h>
+#include <${cf_cv_ncurses_header-curses.h}>
+#include <$cf_test>
+],[int x = auto_left_margin],[
+	cf_cv_term_header="$cf_test"],[
+	cf_cv_term_header=unknown
+	])
+	test "$cf_cv_term_header" != unknown && break
+done
+])
+
+# Set definitions to allow ifdef'ing to accommodate subdirectories
+
+case $cf_cv_term_header in # (vi
+*term.h)
+	AC_DEFINE(HAVE_TERM_H)
+	;;
+esac
+
+case $cf_cv_term_header in # (vi
+ncurses/term.h) #(vi
+	AC_DEFINE(HAVE_NCURSES_TERM_H)
+	;;
+ncursesw/term.h)
+	AC_DEFINE(HAVE_NCURSESW_TERM_H)
+	;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
+dnl --------
+dnl Make an uppercase version of a variable
+dnl $1=uppercase($2)
+AC_DEFUN([CF_UPPER],
+[
+$1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_UTF8_LIB version: 4 updated: 2003/03/01 18:36:42
+dnl -----------
+dnl Check for multibyte support, and if not found, utf8 compatibility library
+AC_DEFUN([CF_UTF8_LIB],
+[
+AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
+	cf_save_LIBS="$LIBS"
+	AC_TRY_LINK([
+#include <stdlib.h>],[putwc(0,0);],
+	[cf_cv_utf8_lib=yes],
+	[LIBS="-lutf8 $LIBS"
+	 AC_TRY_LINK([
+#include <libutf8.h>],[putwc(0,0);],
+		[cf_cv_utf8_lib=add-on],
+		[cf_cv_utf8_lib=no])
+	LIBS="$cf_save_LIBS"
+])])
+
+# HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
+# ncurses/ncursesw:
+if test "$cf_cv_utf8_lib" = "add-on" ; then
+	AC_DEFINE(HAVE_LIBUTF8_H)
+	LIBS="-lutf8 $LIBS"
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
+dnl ----------
+dnl Use AC_VERBOSE w/o the warnings
+AC_DEFUN([CF_VERBOSE],
+[test -n "$verbose" && echo "	$1" 1>&AC_FD_MSG
+CF_MSG_LOG([$1])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_CURSES_DIR version: 2 updated: 2002/11/10 14:46:59
+dnl ------------------
+dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
+dnl libraries.
+AC_DEFUN([CF_WITH_CURSES_DIR],[
+AC_ARG_WITH(curses-dir,
+	[  --with-curses-dir=DIR   directory in which (n)curses is installed],
+	[CF_PATH_SYNTAX(withval)
+	 cf_cv_curses_dir=$withval],
+	[cf_cv_curses_dir=no])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_XOPEN_CURSES version: 8 updated: 2003/11/07 19:47:46
+dnl ---------------
+dnl Test if we should define X/Open source for curses, needed on Digital Unix
+dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
+dnl
+dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
+dnl as getbegy().  The latter is better design, but the former is standard.
+AC_DEFUN([CF_XOPEN_CURSES],
+[
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+AC_CACHE_CHECK(if we must define _XOPEN_SOURCE_EXTENDED,cf_cv_need_xopen_extension,[
+AC_TRY_LINK([
+#include <stdlib.h>
+#include <${cf_cv_ncurses_header-curses.h}>],[
+	long x = winnstr(stdscr, "", 0);
+	int x1, y1;
+	getbegyx(stdscr, y1, x1)],
+	[cf_cv_need_xopen_extension=no],
+	[AC_TRY_LINK([
+#define _XOPEN_SOURCE_EXTENDED
+#include <stdlib.h>
+#include <${cf_cv_ncurses_header-curses.h}>],[
+	long x = winnstr(stdscr, "", 0);
+	int x1, y1;
+	getbegyx(stdscr, y1, x1)],
+	[cf_cv_need_xopen_extension=yes],
+	[cf_cv_need_xopen_extension=unknown])])])
+test $cf_cv_need_xopen_extension = yes && CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_XOPEN_SOURCE version: 25 updated: 2007/01/29 18:36:38
+dnl ---------------
+dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
+dnl or adapt to the vendor's definitions to get equivalent functionality,
+dnl without losing the common non-POSIX features.
+dnl
+dnl Parameters:
+dnl	$1 is the nominal value for _XOPEN_SOURCE
+dnl	$2 is the nominal value for _POSIX_C_SOURCE
+AC_DEFUN([CF_XOPEN_SOURCE],[
+
+AC_REQUIRE([CF_PROG_CC_U_D])
+
+cf_XOPEN_SOURCE=ifelse($1,,500,$1)
+cf_POSIX_C_SOURCE=ifelse($2,,199506L,$2)
+
+case $host_os in #(vi
+aix[[45]]*) #(vi
+	CPPFLAGS="$CPPFLAGS -D_ALL_SOURCE"
+	;;
+freebsd*) #(vi
+	# 5.x headers associate
+	#	_XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
+	#	_XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
+	cf_POSIX_C_SOURCE=200112L
+	cf_XOPEN_SOURCE=600
+	CPPFLAGS="$CPPFLAGS -D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+	;;
+hpux*) #(vi
+	CPPFLAGS="$CPPFLAGS -D_HPUX_SOURCE"
+	;;
+irix[[56]].*) #(vi
+	CPPFLAGS="$CPPFLAGS -D_SGI_SOURCE"
+	;;
+linux*|gnu*|k*bsd*-gnu) #(vi
+	CF_GNU_SOURCE
+	;;
+mirbsd*) #(vi
+	# setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <arpa/inet.h>
+	;;
+netbsd*) #(vi
+	# setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
+	;;
+openbsd*) #(vi
+	# setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
+	;;
+osf[[45]]*) #(vi
+	CPPFLAGS="$CPPFLAGS -D_OSF_SOURCE"
+	;;
+nto-qnx*) #(vi
+	CPPFLAGS="$CPPFLAGS -D_QNX_SOURCE"
+	;;
+sco*) #(vi
+	# setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
+	;;
+solaris*) #(vi
+	CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
+	;;
+*)
+	AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
+	AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+	[cf_cv_xopen_source=no],
+	[cf_save="$CPPFLAGS"
+	 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+	 AC_TRY_COMPILE([#include <sys/types.h>],[
+#ifdef _XOPEN_SOURCE
+make an error
+#endif],
+	[cf_cv_xopen_source=no],
+	[cf_cv_xopen_source=$cf_XOPEN_SOURCE])
+	CPPFLAGS="$cf_save"
+	])
+])
+	if test "$cf_cv_xopen_source" != no ; then
+		CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
+		CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
+		test "$cf_cv_cc_u_d_options" = yes && \
+			CPPFLAGS="$CPPFLAGS -U_XOPEN_SOURCE"
+		CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_cv_xopen_source"
+	fi
+	CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
+	;;
+esac
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_X_ATHENA version: 12 updated: 2004/06/15 21:14:41
+dnl -----------
+dnl Check for Xaw (Athena) libraries
+dnl
+dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
+AC_DEFUN([CF_X_ATHENA],
+[AC_REQUIRE([CF_X_TOOLKIT])
+cf_x_athena=${cf_x_athena-Xaw}
+
+AC_MSG_CHECKING(if you want to link with Xaw 3d library)
+withval=
+AC_ARG_WITH(Xaw3d,
+	[  --with-Xaw3d            link with Xaw 3d library])
+if test "$withval" = yes ; then
+	cf_x_athena=Xaw3d
+	AC_MSG_RESULT(yes)
+else
+	AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(if you want to link with neXT Athena library)
+withval=
+AC_ARG_WITH(neXtaw,
+	[  --with-neXtaw           link with neXT Athena library])
+if test "$withval" = yes ; then
+	cf_x_athena=neXtaw
+	AC_MSG_RESULT(yes)
+else
+	AC_MSG_RESULT(no)
+fi
+
+AC_MSG_CHECKING(if you want to link with Athena-Plus library)
+withval=
+AC_ARG_WITH(XawPlus,
+	[  --with-XawPlus          link with Athena-Plus library])
+if test "$withval" = yes ; then
+	cf_x_athena=XawPlus
+	AC_MSG_RESULT(yes)
+else
+	AC_MSG_RESULT(no)
+fi
+
+AC_CHECK_LIB(Xext,XextCreateExtension,
+	[LIBS="-lXext $LIBS"])
+
+cf_x_athena_lib=""
+
+CF_X_ATHENA_CPPFLAGS($cf_x_athena)
+CF_X_ATHENA_LIBS($cf_x_athena)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_X_ATHENA_CPPFLAGS version: 2 updated: 2002/10/09 20:00:37
+dnl --------------------
+dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
+dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
+AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
+[
+cf_x_athena_root=ifelse($1,,Xaw,$1)
+cf_x_athena_include=""
+
+for cf_path in default \
+	/usr/contrib/X11R6 \
+	/usr/contrib/X11R5 \
+	/usr/lib/X11R5 \
+	/usr/local
+do
+	if test -z "$cf_x_athena_include" ; then
+		cf_save="$CPPFLAGS"
+		cf_test=X11/$cf_x_athena_root/SimpleMenu.h
+		if test $cf_path != default ; then
+			CPPFLAGS="-I$cf_path/include $cf_save"
+			AC_MSG_CHECKING(for $cf_test in $cf_path)
+		else
+			AC_MSG_CHECKING(for $cf_test)
+		fi
+		AC_TRY_COMPILE([
+#include <X11/Intrinsic.h>
+#include <$cf_test>],[],
+			[cf_result=yes],
+			[cf_result=no])
+		AC_MSG_RESULT($cf_result)
+		if test "$cf_result" = yes ; then
+			cf_x_athena_include=$cf_path
+			break
+		else
+			CPPFLAGS="$cf_save"
+		fi
+	fi
+done
+
+if test -z "$cf_x_athena_include" ; then
+	AC_MSG_WARN(
+[Unable to successfully find Athena header files with test program])
+elif test "$cf_x_athena_include" != default ; then
+	CPPFLAGS="$CPPFLAGS -I$cf_x_athena_include"
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_X_ATHENA_LIBS version: 6 updated: 2006/11/30 17:57:11
+dnl ----------------
+dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
+dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
+AC_DEFUN([CF_X_ATHENA_LIBS],
+[AC_REQUIRE([CF_X_TOOLKIT])
+cf_x_athena_root=ifelse($1,,Xaw,$1)
+cf_x_athena_lib=""
+
+for cf_path in default \
+	/usr/contrib/X11R6 \
+	/usr/contrib/X11R5 \
+	/usr/lib/X11R5 \
+	/usr/local
+do
+	for cf_lib in \
+		"-l$cf_x_athena_root -lXmu" \
+		"-l$cf_x_athena_root -lXpm -lXmu" \
+		"-l${cf_x_athena_root}_s -lXmu_s"
+	do
+		if test -z "$cf_x_athena_lib" ; then
+			cf_save="$LIBS"
+			cf_test=XawSimpleMenuAddGlobalActions
+			if test $cf_path != default ; then
+				LIBS="-L$cf_path/lib $cf_lib $LIBS"
+				AC_MSG_CHECKING(for $cf_lib in $cf_path)
+			else
+				LIBS="$cf_lib $LIBS"
+				AC_MSG_CHECKING(for $cf_test in $cf_lib)
+			fi
+			AC_TRY_LINK([],[$cf_test()],
+				[cf_result=yes],
+				[cf_result=no])
+			AC_MSG_RESULT($cf_result)
+			if test "$cf_result" = yes ; then
+				cf_x_athena_lib="$cf_lib"
+				break
+			fi
+			LIBS="$cf_save"
+		fi
+	done
+done
+
+if test -z "$cf_x_athena_lib" ; then
+	AC_ERROR(
+[Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
+fi
+
+CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
+AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_X_TOOLKIT version: 11 updated: 2006/11/29 19:05:14
+dnl ------------
+dnl Check for X Toolkit libraries
+dnl
+AC_DEFUN([CF_X_TOOLKIT],
+[
+AC_REQUIRE([AC_PATH_XTRA])
+AC_REQUIRE([CF_CHECK_CACHE])
+
+# SYSTEM_NAME=`echo "$cf_cv_system_name"|tr ' ' -`
+
+cf_have_X_LIBS=no
+
+LDFLAGS="$X_LIBS $LDFLAGS"
+CF_CHECK_CFLAGS($X_CFLAGS)
+
+AC_CHECK_FUNC(XOpenDisplay,,[
+AC_CHECK_LIB(X11,XOpenDisplay,
+	[LIBS="-lX11 $LIBS"],,
+	[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])])
+
+AC_CHECK_FUNC(XtAppInitialize,,[
+AC_CHECK_LIB(Xt, XtAppInitialize,
+	[AC_DEFINE(HAVE_LIBXT)
+	 cf_have_X_LIBS=Xt
+	 LIBS="-lXt $X_PRE_LIBS $LIBS $X_EXTRA_LIBS"],,
+	[$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])])
+
+if test $cf_have_X_LIBS = no ; then
+	AC_WARN(
+[Unable to successfully link X Toolkit library (-lXt) with
+test program.  You will have to check and add the proper libraries by hand
+to makefile.])
+fi
+])dnl