]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - test/aclocal.m4
ncurses 6.0 - patch 20150808
[ncurses.git] / test / aclocal.m4
index 3fee015fffe654e95cb71560f832326434dc1ba3..0ea83b55135771270f1b5c89e76a05f564809375 100644 (file)
@@ -1,5 +1,5 @@
 dnl***************************************************************************
-dnl Copyright (c) 2003-2009,2010 Free Software Foundation, Inc.              *
+dnl Copyright (c) 2003-2014,2015 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            *
@@ -26,7 +26,7 @@ dnl sale, use or other dealings in this Software without prior written       *
 dnl authorization.                                                           *
 dnl***************************************************************************
 dnl
-dnl $Id: aclocal.m4,v 1.34 2010/04/04 00:08:48 tom Exp $
+dnl $Id: aclocal.m4,v 1.120 2015/08/08 14:27:27 tom Exp $
 dnl
 dnl Author: Thomas E. Dickey
 dnl
@@ -40,7 +40,33 @@ dnl See http://invisible-island.net/autoconf/ for additional information.
 dnl
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_CFLAGS version: 9 updated: 2010/01/09 11:05:50
+dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
+dnl ------------------
+dnl Conditionally generate script according to whether we're using a given autoconf.
+dnl
+dnl $1 = version to compare against
+dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
+dnl $3 = code to use if AC_ACVERSION is older than $1.
+define([CF_ACVERSION_CHECK],
+[
+ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
+ifdef([m4_version_compare],
+[m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
+[CF_ACVERSION_COMPARE(
+AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
+AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
+dnl --------------------
+dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
+dnl                      MAJOR2, MINOR2, TERNARY2,
+dnl                      PRINTABLE2, not FOUND, FOUND)
+define([CF_ACVERSION_COMPARE],
+[ifelse(builtin([eval], [$2 < $5]), 1,
+[ifelse([$8], , ,[$8])],
+[ifelse([$9], , ,[$9])])])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_CFLAGS version: 12 updated: 2015/04/12 15:39:00
 dnl -------------
 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 dnl The second parameter if given makes this macro verbose.
@@ -58,14 +84,14 @@ 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
+(no)
+       case $cf_add_cflags in
+       (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
                case $cf_add_cflags in
-               -D*)
+               (-D*)
                        cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 
-                       test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+                       test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
                                && test -z "${cf_tst_cflags}" \
                                && cf_fix_cppflags=yes
 
@@ -79,11 +105,11 @@ no)
                        ;;
                esac
                case "$CPPFLAGS" in
-               *$cf_add_cflags) #(vi
+               (*$cf_add_cflags)
                        ;;
-               *) #(vi
-                       case $cf_add_cflags in #(vi
-                       -D*)
+               (*)
+                       case $cf_add_cflags in
+                       (-D*)
                                cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
                                CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
                                ;;
@@ -92,17 +118,17 @@ no)
                        ;;
                esac
                ;;
-       *)
+       (*)
                cf_new_cflags="$cf_new_cflags $cf_add_cflags"
                ;;
        esac
        ;;
-yes)
+(yes)
        cf_new_extra_cppflags="$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 "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
                && test -z "${cf_tst_cflags}" \
                && cf_fix_cppflags=no
        ;;
@@ -110,17 +136,17 @@ esac
 done
 
 if test -n "$cf_new_cflags" ; then
-       ifelse($2,,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
+       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)])
+       ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
        CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
 fi
 
 if test -n "$cf_new_extra_cppflags" ; then
-       ifelse($2,,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
+       ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
        EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
 fi
 
@@ -128,7 +154,7 @@ AC_SUBST(EXTRA_CPPFLAGS)
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_INCDIR version: 12 updated: 2009/01/18 10:00:47
+dnl CF_ADD_INCDIR version: 14 updated: 2015/05/25 20:53:04
 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,
@@ -171,7 +197,7 @@ if test -n "$1" ; then
 
                if test "$cf_have_incdir" = no ; then
                  CF_VERBOSE(adding $cf_add_incdir to include-path)
-                 ifelse($2,,CPPFLAGS,$2)="$ifelse($2,,CPPFLAGS,$2) -I$cf_add_incdir"
+                 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
 
                  cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
                  test "$cf_top_incdir" = "$cf_add_incdir" && break
@@ -179,13 +205,23 @@ if test -n "$1" ; then
                else
                  break
                fi
+         else
+               break
          fi
        done
   done
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_LIBDIR version: 8 updated: 2009/01/18 10:01:08
+dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
+dnl ----------
+dnl Add a library, used to enforce consistency.
+dnl
+dnl $1 = library to add, without the "-l"
+dnl $2 = variable to update (default $LIBS)
+AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 dnl -------------
 dnl    Adds to the library-path
 dnl
@@ -197,31 +233,70 @@ 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
+       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 CF_ADD_LIBS version: 2 updated: 2014/07/13 14:33:27
+dnl -----------
+dnl Add one or more libraries, used to enforce consistency.  Libraries are
+dnl prepended to an existing list, since their dependencies are assumed to
+dnl already exist in the list.
+dnl
+dnl $1 = libraries to add, with the "-l", etc.
+dnl $2 = variable to update (default $LIBS)
+AC_DEFUN([CF_ADD_LIBS],[
+cf_add_libs="$1"
+# Filter out duplicates - this happens with badly-designed ".pc" files...
+for cf_add_1lib in [$]ifelse($2,,LIBS,[$2])
+do
+       for cf_add_2lib in $cf_add_libs
+       do
+               if test "x$cf_add_1lib" = "x$cf_add_2lib"
+               then
+                       cf_add_1lib=
+                       break
+               fi
+       done
+       test -n "$cf_add_1lib" && cf_add_libs="$cf_add_libs $cf_add_1lib"
+done
+ifelse($2,,LIBS,[$2])="$cf_add_libs"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_LIB_AFTER version: 3 updated: 2013/07/09 21:27:22
+dnl ----------------
+dnl Add a given library after another, e.g., following the one it satisfies a
+dnl dependency for.
+dnl
+dnl $1 = the first library
+dnl $2 = its dependency
+AC_DEFUN([CF_ADD_LIB_AFTER],[
+CF_VERBOSE(...before $LIBS)
+LIBS=`echo "$LIBS" | sed -e "s/[[      ]][[    ]]*/ /g" -e "s%$1 %$1 $2 %" -e 's%  % %g'`
+CF_VERBOSE(...after  $LIBS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 dnl ------------------
 dnl Append to a search-list for a nonstandard header/lib-file
 dnl    $1 = the variable to return as result
@@ -231,9 +306,9 @@ 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 "x$4" != "x$5" && \
 test -d "$4" && \
-ifelse([$5],NONE,,[(test $5 = NONE || test -d $5) &&]) {
+ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
        test -n "$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"
@@ -243,76 +318,6 @@ ifelse([$5],NONE,,[(test $5 = NONE || test -d $5) &&]) {
 }
 ])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: 4 updated: 2008/03/23 14:48:54
-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_MSG_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.
@@ -325,7 +330,7 @@ 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 CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 dnl -------------
 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 dnl values.
@@ -337,18 +342,44 @@ 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: 11 updated: 2008/03/23 14:45:59
+[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_CC_ENV_FLAGS version: 2 updated: 2015/04/12 15:39:00
+dnl ---------------
+dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
+dnl into CC.  This will not help with broken scripts that wrap the compiler with
+dnl options, but eliminates a more common category of user confusion.
+AC_DEFUN([CF_CC_ENV_FLAGS],
+[
+# This should have been defined by AC_PROG_CC
+: ${CC:=cc}
+
+AC_MSG_CHECKING(\$CC variable)
+case "$CC" in
+(*[[\ \        ]]-[[IUD]]*)
+       AC_MSG_RESULT(broken)
+       AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
+       # humor him...
+       cf_flags=`echo "$CC" | sed -e 's/^[[^   ]]*[[   ]]//'`
+       CC=`echo "$CC" | sed -e 's/[[   ]].*//'`
+       CF_ADD_CFLAGS($cf_flags)
+       ;;
+(*)
+       AC_MSG_RESULT(ok)
+       ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
 dnl --------------
 dnl Check if we're accidentally using a cache from a different machine.
 dnl Derive the system name, as a check for reusing the autoconf cache.
@@ -371,7 +402,7 @@ else
                system_name="`(hostname) 2>/dev/null`"
        fi
 fi
-test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name")
+test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
 
 test -z "$system_name" && system_name="$cf_cv_system_name"
@@ -383,7 +414,7 @@ if test ".$system_name" != ".$cf_cv_system_name" ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CHECK_CFLAGS version: 2 updated: 2001/12/30 19:09:58
+dnl CF_CHECK_CFLAGS version: 3 updated: 2014/07/22 05:32:57
 dnl ---------------
 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
 dnl a build-configuration such as imake.  These have the pitfall that they
@@ -395,17 +426,63 @@ CF_VERBOSE(checking additions to CFLAGS)
 cf_check_cflags="$CFLAGS"
 cf_check_cppflags="$CPPFLAGS"
 CF_ADD_CFLAGS($1,yes)
-if test "$cf_check_cflags" != "$CFLAGS" ; then
+if test "x$cf_check_cflags" != "x$CFLAGS" ; then
 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
        [CF_VERBOSE(test-compile failed.  Undoing change to \$CFLAGS)
-        if test "$cf_check_cppflags" != "$CPPFLAGS" ; then
+        if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
                 CF_VERBOSE(but keeping change to \$CPPFLAGS)
         fi
         CFLAGS="$cf_check_flags"])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_ACS_MAP version: 5 updated: 2009/03/28 16:08:10
+dnl CF_CHECK_CURSES_LIB version: 1 updated: 2015/04/25 20:53:11
+dnl -------------------
+dnl $1 = nominal library name, used also for header lookup
+dnl $2 = suffix to append to library name
+dnl $3 = function to check for using AC_CHECK_LIB
+AC_DEFUN([CF_CHECK_CURSES_LIB],
+[
+AC_CHECK_LIB($1$2,$3,[
+CF_UPPER(cf_upper,have_lib$1)
+CF_ADD_LIBS(-l$1$2)
+AC_DEFINE_UNQUOTED($cf_upper,1)])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
+dnl -----------------
+dnl Check if the given compiler is really clang.  clang's C driver defines
+dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
+dnl not ignore some gcc options.
+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 = CLANG_COMPILER (default)
+dnl $3 = CFLAGS (default) or CXXFLAGS
+AC_DEFUN([CF_CLANG_COMPILER],[
+ifelse([$2],,CLANG_COMPILER,[$2])=no
+
+if test "$ifelse([$1],,[$1],GCC)" = yes ; then
+       AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
+       cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
+       ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
+       AC_TRY_COMPILE([],[
+#ifdef __clang__
+#else
+make an error
+#endif
+],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
+],[])
+       ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
+       AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_ACS_MAP version: 7 updated: 2012/10/06 16:39:58
 dnl -----------------
 dnl Check for likely values of acs_map[]:
 AC_DEFUN([CF_CURSES_ACS_MAP],
@@ -416,39 +493,54 @@ cf_cv_curses_acs_map=unknown
 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
 do
 AC_TRY_LINK([
-#include <${cf_cv_ncurses_header-curses.h}>
+#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)
+test "$cf_cv_curses_acs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_ACS_ARRAY,$cf_cv_curses_acs_map,[Define as needed to override ncurses prefix _nc_])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_CHECK_DATA version: 2 updated: 2009/07/16 21:03:10
+dnl CF_CURSES_CHECK_DATA version: 5 updated: 2014/07/19 18:41:17
 dnl --------------------
 dnl Check if curses.h defines the given data/variable.
 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
 AC_DEFUN([CF_CURSES_CHECK_DATA],
 [
-AC_MSG_CHECKING(for data $1 declaration in ${cf_cv_ncurses_header-curses.h})
+AC_MSG_CHECKING(for data $1 declaration in ${cf_cv_ncurses_header:-curses.h})
+
 AC_TRY_COMPILE(CF__CURSES_HEAD,[
 void *foo = &($1)
 ],cf_result=yes,cf_result=no)
 AC_MSG_RESULT($cf_result)
+
 if test $cf_result = yes ; then
        CF_UPPER(cf_result,have_curses_data_$1)
        AC_DEFINE_UNQUOTED($cf_result)
 else
        AC_MSG_CHECKING(for data $1 in library)
+       # BSD linkers insist on making weak linkage, but resolve at runtime.
+       AC_TRY_RUN(CF__CURSES_HEAD
+[
+extern char $1;
+int main(void)
+{
+       void *foo = &($1);
+       fprintf(stderr, "testing linkage of $1:%p\n", foo);
+       ${cf_cv_main_return:-return}(foo == 0);
+}],[cf_result=yes],[cf_result=no],[
+       # cross-compiling
        AC_TRY_LINK(CF__CURSES_HEAD
 [extern char $1;],[
        do {
                void *foo = &($1);
-               ${cf_cv_main_return-return}(foo == 0);
+               fprintf(stderr, "testing linkage of $1:%p\n", foo);
+               ${cf_cv_main_return:-return}(foo == 0);
        } while (0)
 ],[cf_result=yes],[cf_result=no])
+])
        AC_MSG_RESULT($cf_result)
        if test $cf_result = yes ; then
                CF_UPPER(cf_result,decl_curses_data_$1)
@@ -457,25 +549,25 @@ else
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_CHECK_TYPE version: 2 updated: 2003/03/01 23:40:33
+dnl CF_CURSES_CHECK_TYPE version: 4 updated: 2012/10/06 16:39:58
 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_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}>],[
+#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)
+       AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
 else
-       AC_DEFINE_UNQUOTED($1,$2)
+       AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -491,22 +583,28 @@ CF_NCURSES_VERSION
 CF_CURSES_LIBS
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_CPPFLAGS version: 10 updated: 2009/01/06 19:34:11
+dnl CF_CURSES_CPPFLAGS version: 12 updated: 2015/04/15 19:08:48
 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"
+case $host_os in
+(hpux10.*)
+       if test "x$cf_cv_screen" = "xcurses_colr"
+       then
+               test -d /usr/include/curses_colr && \
+               cf_cv_curses_incdir="-I/usr/include/curses_colr"
+       fi
        ;;
-sunos3*|sunos4*)
-       test -d /usr/5lib && \
-       test -d /usr/5include && \
-       cf_cv_curses_incdir="-I/usr/5include"
+(sunos3*|sunos4*)
+       if test "x$cf_cv_screen" = "xcurses_5lib"
+       then
+               test -d /usr/5lib && \
+               test -d /usr/5include && \
+               cf_cv_curses_incdir="-I/usr/5include"
+       fi
        ;;
 esac
 ])
@@ -516,7 +614,7 @@ CF_CURSES_HEADER
 CF_TERM_HEADER
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_FUNCS version: 14 updated: 2009/07/16 19:34:55
+dnl CF_CURSES_FUNCS version: 18 updated: 2014/07/19 18:44:41
 dnl ---------------
 dnl Curses-functions are a little complicated, since a lot of them are macros.
 AC_DEFUN([CF_CURSES_FUNCS],
@@ -524,6 +622,7 @@ AC_DEFUN([CF_CURSES_FUNCS],
 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
 AC_REQUIRE([CF_XOPEN_CURSES])
 AC_REQUIRE([CF_CURSES_TERM_H])
+AC_REQUIRE([CF_CURSES_UNCTRL_H])
 for cf_func in $1
 do
        CF_UPPER(cf_tr_func,$cf_func)
@@ -536,7 +635,9 @@ do
                        [
 #ifndef ${cf_func}
 long foo = (long)(&${cf_func});
-${cf_cv_main_return-return}(foo == 0);
+fprintf(stderr, "testing linkage of $cf_func:%p\n", foo);
+if (foo + 1234 > 5678)
+       ${cf_cv_main_return:-return}(foo);
 #endif
                        ],
                        [cf_result=yes],
@@ -553,20 +654,18 @@ ${cf_cv_main_return-return}(foo == 0);
 done
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_HEADER version: 1 updated: 2005/12/31 13:28:25
+dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 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.
+dnl $1 = ncurses when looking for ncurses, or is empty
 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
+       ncurses.h ifelse($1,,,[$1/ncurses.h]) \
+       curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 do
 AC_TRY_COMPILE([#include <${cf_header}>],
        [initscr(); tgoto("?", 0,0)],
@@ -582,7 +681,7 @@ fi
 AC_CHECK_HEADERS($cf_cv_ncurses_header)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_LIBS version: 29 updated: 2009/01/06 19:34:57
+dnl CF_CURSES_LIBS version: 39 updated: 2015/05/10 19:52:14
 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.
@@ -590,101 +689,127 @@ AC_DEFUN([CF_CURSES_LIBS],[
 
 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
 AC_MSG_CHECKING(if we have identified curses libraries)
-AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
-    [initscr(); tgoto("?", 0,0)],
-    cf_result=yes,
-    cf_result=no)
+AC_TRY_LINK([#include <${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 $LIBS"
-        CPPFLAGS="$CPPFLAGS -D__HP_CURSES -D_HP_CURSES"
-        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
-    ;;
+case $host_os in
+(freebsd*)
+       AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
+       ;;
+(hpux10.*)
+       # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
+       # next (1998), and xcurses "newer" (2000).  There is no header file for
+       # Hcurses; the subdirectory curses_colr has the headers (curses.h and
+       # term.h) for cur_colr
+       if test "x$cf_cv_screen" = "xcurses_colr"
+       then
+               AC_CHECK_LIB(cur_colr,initscr,[
+                       CF_ADD_LIBS(-lcur_colr)
+                       ac_cv_func_initscr=yes
+                       ],[
+               AC_CHECK_LIB(Hcurses,initscr,[
+                       # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
+                       CF_ADD_LIBS(-lHcurses)
+                       CPPFLAGS="$CPPFLAGS -D__HP_CURSES -D_HP_CURSES"
+                       ac_cv_func_initscr=yes
+                       ])])
+       fi
+       ;;
+(linux*)
+       case `arch 2>/dev/null` in
+       (x86_64)
+               if test -d /lib64
+               then
+                       CF_ADD_LIBDIR(/lib64)
+               else
+                       CF_ADD_LIBDIR(/lib)
+               fi
+               ;;
+       (*)
+               CF_ADD_LIBDIR(/lib)
+               ;;
+       esac
+       ;;
+(sunos3*|sunos4*)
+       if test "x$cf_cv_screen" = "xcurses_5lib"
+       then
+               if test -d /usr/5lib ; then
+                       CF_ADD_LIBDIR(/usr/5lib)
+                       CF_ADD_LIBS(-lcurses -ltermcap)
+               fi
+       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 $cf_check_list xcurses jcurses pdcurses unknown
-    do
-        AC_CHECK_LIB($cf_curs_lib,initscr,[break])
-    done
-    test $cf_curs_lib = unknown && AC_MSG_ERROR(no curses library found)
-
-    LIBS="-l$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 $cf_result = no && AC_MSG_ERROR(Cannot link curses library)
-    elif test "$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($cf_result)
-    fi
-fi
-fi
-
-])dnl
-dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_TERM_H version: 7 updated: 2010/01/24 18:40:06
+       cf_save_LIBS="$LIBS"
+
+       if test ".${cf_cv_ncurses_version:-no}" != .no
+       then
+               cf_check_list="ncurses curses cursesX"
+       else
+               cf_check_list="cursesX curses ncurses"
+       fi
+
+       # Check for library containing tgoto.  Do this before curses library
+       # because it may be needed to link the test-case for initscr.
+       if test "x$cf_term_lib" = x
+       then
+               AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
+                       for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
+                       do
+                               AC_CHECK_LIB($cf_term_lib,tgoto,[break])
+                       done
+               ])
+       fi
+
+       # Check for library containing initscr
+       test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
+       if test "x$cf_curs_lib" = x
+       then
+               for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
+               do
+                       AC_CHECK_LIB($cf_curs_lib,initscr,[break])
+               done
+       fi
+       test $cf_curs_lib = unknown && AC_MSG_ERROR(no curses library found)
+
+       LIBS="-l$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 $cf_result = no && AC_MSG_ERROR(Cannot link curses library)
+       elif test "$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: 11 updated: 2015/04/15 19:08:48
 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,
@@ -698,12 +823,20 @@ AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
 
 # 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
+
+cf_header_list="term.h ncurses/term.h ncursesw/term.h"
+
+case ${cf_cv_ncurses_header:-curses.h} in
+(*/*)
+       cf_header_item=`echo ${cf_cv_ncurses_header:-curses.h} | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
+       cf_header_list="$cf_header_item $cf_header_list"
+       ;;
+esac
+
+for cf_header in $cf_header_list
 do
        AC_TRY_COMPILE([
-#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 #include <${cf_header}>],
        [WINDOW *x],
        [cf_cv_term_header=$cf_header
@@ -711,14 +844,14 @@ do
        [cf_cv_term_header=no])
 done
 
-case $cf_cv_term_header in #(vi
-no)
+case $cf_cv_term_header in
+(no)
        # If curses is ncurses, some packagers still mess it up by trying to make
        # us use GNU termcap.  This handles the most common case.
        for cf_header in ncurses/term.h ncursesw/term.h
        do
                AC_TRY_COMPILE([
-#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 #ifdef NCURSES_VERSION
 #include <${cf_header}>
 #else
@@ -733,45 +866,137 @@ make an error
 esac
 ])
 
-case $cf_cv_term_header in #(vi
-term.h) #(vi
-       AC_DEFINE(HAVE_TERM_H)
+case $cf_cv_term_header in
+(term.h)
+       AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
+       ;;
+(ncurses/term.h)
+       AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
+       ;;
+(ncursesw/term.h)
+       AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
+       ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_UNCTRL_H version: 4 updated: 2015/04/15 19:08:48
+dnl ------------------
+dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
+dnl may put it in a subdirectory (along with ncurses' other headers, of
+dnl course).  Packages which put the headers in inconsistent locations are
+dnl broken).
+AC_DEFUN([CF_CURSES_UNCTRL_H],
+[
+AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
+
+AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
+
+# If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
+# for <unctrl.h> if we do not find the variant.
+
+cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
+
+case ${cf_cv_ncurses_header:-curses.h} in
+(*/*)
+       cf_header_item=`echo ${cf_cv_ncurses_header:-curses.h} | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
+       cf_header_list="$cf_header_item $cf_header_list"
+       ;;
+esac
+
+for cf_header in $cf_header_list
+do
+       AC_TRY_COMPILE([
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <${cf_header}>],
+       [WINDOW *x],
+       [cf_cv_unctrl_header=$cf_header
+        break],
+       [cf_cv_unctrl_header=no])
+done
+])
+
+case $cf_cv_unctrl_header in
+(no)
+       AC_MSG_WARN(unctrl.h header not found)
+       ;;
+esac
+
+case $cf_cv_unctrl_header in
+(unctrl.h)
+       AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
        ;;
-ncurses/term.h) #(vi
-       AC_DEFINE(HAVE_NCURSES_TERM_H)
+(ncurses/unctrl.h)
+       AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
        ;;
-ncursesw/term.h)
-       AC_DEFINE(HAVE_NCURSESW_TERM_H)
+(ncursesw/unctrl.h)
+       AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
        ;;
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_WACS_MAP version: 3 updated: 2003/05/17 22:19:02
+dnl CF_CURSES_WACS_MAP version: 6 updated: 2012/10/06 08:57:51
 dnl ------------------
-dnl Check for likely values of wacs_map[]:
+dnl Check for likely values of wacs_map[].
 AC_DEFUN([CF_CURSES_WACS_MAP],
 [
 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
        cf_cv_curses_wacs_map=unknown
-       for name in wacs_map _wacs_map __wacs_map _nc_wacs
+       for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
        do
        AC_TRY_LINK([
 #ifndef _XOPEN_SOURCE_EXTENDED
 #define _XOPEN_SOURCE_EXTENDED
 #endif
-#include <${cf_cv_ncurses_header-curses.h}>],
-       [$name['k'] = *WACS_PLUS],
+#include <${cf_cv_ncurses_header:-curses.h}>],
+       [void *foo = &($name['k'])],
        [cf_cv_curses_wacs_map=$name
         break])
        done])
+
+test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_WACS_SYMBOLS version: 2 updated: 2012/10/06 08:57:51
+dnl ----------------------
+dnl Do a check to see if the WACS_xxx constants are defined compatibly with
+dnl X/Open Curses.  In particular, NetBSD's implementation of the WACS_xxx
+dnl constants is broken since those constants do not point to cchar_t's.
+AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
+[
+AC_REQUIRE([CF_CURSES_WACS_MAP])
+
+AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
+cf_cv_curses_wacs_symbols=no
+if test "$cf_cv_curses_wacs_map" != unknown
+then
+       AC_TRY_LINK([
+#ifndef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED
+#endif
+#include <${cf_cv_ncurses_header:-curses.h}>],
+       [cchar_t *foo = WACS_PLUS;
+        $cf_cv_curses_wacs_map['k'] = *WACS_PLUS],
+       [cf_cv_curses_wacs_symbols=yes])
+else
+       AC_TRY_LINK([
+#ifndef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED
+#endif
+#include <${cf_cv_ncurses_header:-curses.h}>],
+       [cchar_t *foo = WACS_PLUS],
+       [cf_cv_curses_wacs_symbols=yes])
+fi
 ])
+
+test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
+])dnl
 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: 11 updated: 2009/12/13 13:16:57
+dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 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.
@@ -786,19 +1011,19 @@ 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],
+       [  --disable-echo          do not display "compiling" commands],
        [
-    ECHO_LT='--silent'
-    ECHO_LD='@echo linking [$]@;'
-    RULE_CC='@echo compiling [$]<'
-    SHOW_CC='@echo compiling [$]@'
-    ECHO_CC='@'
+       ECHO_LT='--silent'
+       ECHO_LD='@echo linking [$]@;'
+       RULE_CC='@echo compiling [$]<'
+       SHOW_CC='@echo compiling [$]@'
+       ECHO_CC='@'
 ],[
-    ECHO_LT=''
-    ECHO_LD=''
-    RULE_CC=''
-    SHOW_CC=''
-    ECHO_CC=''
+       ECHO_LT=''
+       ECHO_LD=''
+       RULE_CC=''
+       SHOW_CC=''
+       ECHO_CC=''
 ])
 AC_MSG_RESULT($enableval)
 AC_SUBST(ECHO_LT)
@@ -808,6 +1033,48 @@ AC_SUBST(SHOW_CC)
 AC_SUBST(ECHO_CC)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
+dnl ----------------
+dnl Combine no-leak checks with the libraries or tools that are used for the
+dnl checks.
+AC_DEFUN([CF_DISABLE_LEAKS],[
+
+AC_REQUIRE([CF_WITH_DMALLOC])
+AC_REQUIRE([CF_WITH_DBMALLOC])
+AC_REQUIRE([CF_WITH_VALGRIND])
+
+AC_MSG_CHECKING(if you want to perform memory-leak testing)
+AC_ARG_ENABLE(leaks,
+       [  --disable-leaks         test: free permanent memory, analyze leaks],
+       [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
+       : ${with_no_leaks:=no})
+AC_MSG_RESULT($with_no_leaks)
+
+if test "$with_no_leaks" = yes ; then
+       AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
+       AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
+dnl ---------------------
+dnl The rpath-hack makes it simpler to build programs, particularly with the
+dnl *BSD ports which may have essential libraries in unusual places.  But it
+dnl can interfere with building an executable for the base system.  Use this
+dnl option in that case.
+AC_DEFUN([CF_DISABLE_RPATH_HACK],
+[
+AC_MSG_CHECKING(if rpath-hack should be disabled)
+CF_ARG_DISABLE(rpath-hack,
+       [  --disable-rpath-hack    don't add rpath options for additional libraries],
+       [cf_disable_rpath_hack=yes],
+       [cf_disable_rpath_hack=no])
+AC_MSG_RESULT($cf_disable_rpath_hack)
+if test "$cf_disable_rpath_hack" = no ; then
+       CF_RPATH_HACK
+fi
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_ENABLE_WARNINGS version: 4 updated: 2009/07/26 17:53:03
 dnl ------------------
 dnl Configure-option to enable gcc warnings
@@ -878,7 +1145,7 @@ fi
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_FIND_LINKAGE version: 15 updated: 2010/04/03 18:35:33
+dnl CF_FIND_LINKAGE version: 20 updated: 2015/04/18 08:56:57
 dnl ---------------
 dnl Find a library (specifically the linkage used in the code fragment),
 dnl searching for it if it is not already in the library path.
@@ -907,102 +1174,108 @@ cf_cv_library_path_$3=
 
 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
 
+cf_save_LIBS="$LIBS"
+
 AC_TRY_LINK([$1],[$2],[
        cf_cv_find_linkage_$3=yes
+       cf_cv_header_path_$3=/usr/include
+       cf_cv_library_path_$3=/usr/lib
 ],[
 
-cf_save_LIBS="$LIBS"
 LIBS="-l$3 $7 $cf_save_LIBS"
 
 AC_TRY_LINK([$1],[$2],[
        cf_cv_find_linkage_$3=yes
+       cf_cv_header_path_$3=/usr/include
+       cf_cv_library_path_$3=/usr/lib
        cf_cv_library_file_$3="-l$3"
 ],[
-    cf_cv_find_linkage_$3=no
+       cf_cv_find_linkage_$3=no
        LIBS="$cf_save_LIBS"
 
-    CF_VERBOSE(find linkage for $3 library)
-    CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
-
-    cf_save_CPPFLAGS="$CPPFLAGS"
-    cf_test_CPPFLAGS="$CPPFLAGS"
-
-    CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
-    for cf_cv_header_path_$3 in $cf_search
-    do
-      if test -d $cf_cv_header_path_$3 ; then
-        CF_VERBOSE(... testing $cf_cv_header_path_$3)
-        CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
-        AC_TRY_COMPILE([$1],[$2],[
-            CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
-            cf_cv_find_linkage_$3=maybe
-            cf_test_CPPFLAGS="$CPPFLAGS"
-            break],[
-            CPPFLAGS="$cf_save_CPPFLAGS"
-            ])
-      fi
-    done
-
-    if test "$cf_cv_find_linkage_$3" = maybe ; then
-
-      CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
-
-      cf_save_LIBS="$LIBS"
-      cf_save_LDFLAGS="$LDFLAGS"
-
-      ifelse([$6],,,[
-        CPPFLAGS="$cf_test_CPPFLAGS"
-        LIBS="-l$3 $7 $cf_save_LIBS"
-        AC_TRY_LINK([$1],[$2],[
-            CF_VERBOSE(... found $3 library in system)
-            cf_cv_find_linkage_$3=yes])
-            CPPFLAGS="$cf_save_CPPFLAGS"
-            LIBS="$cf_save_LIBS"
-            ])
-
-      if test "$cf_cv_find_linkage_$3" != yes ; then
-        CF_LIBRARY_PATH(cf_search,$3)
-        for cf_cv_library_path_$3 in $cf_search
-        do
-          if test -d $cf_cv_library_path_$3 ; then
-            CF_VERBOSE(... testing $cf_cv_library_path_$3)
-            CPPFLAGS="$cf_test_CPPFLAGS"
-            LIBS="-l$3 $7 $cf_save_LIBS"
-            LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
-            AC_TRY_LINK([$1],[$2],[
-                CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
-                cf_cv_find_linkage_$3=yes
-                cf_cv_library_file_$3="-l$3"
-                break],[
-                CPPFLAGS="$cf_save_CPPFLAGS"
-                LIBS="$cf_save_LIBS"
-                LDFLAGS="$cf_save_LDFLAGS"
-                ])
-          fi
-        done
-        LIBS="$cf_save_LIBS"
-        CPPFLAGS="$cf_save_CPPFLAGS"
-        LDFLAGS="$cf_save_LDFLAGS"
-      fi
-
-    else
-      cf_cv_find_linkage_$3=no
-    fi
-    ],$7)
+       CF_VERBOSE(find linkage for $3 library)
+       CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
+
+       cf_save_CPPFLAGS="$CPPFLAGS"
+       cf_test_CPPFLAGS="$CPPFLAGS"
+
+       CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
+       for cf_cv_header_path_$3 in $cf_search
+       do
+               if test -d $cf_cv_header_path_$3 ; then
+                       CF_VERBOSE(... testing $cf_cv_header_path_$3)
+                       CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
+                       AC_TRY_COMPILE([$1],[$2],[
+                               CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
+                               cf_cv_find_linkage_$3=maybe
+                               cf_test_CPPFLAGS="$CPPFLAGS"
+                               break],[
+                               CPPFLAGS="$cf_save_CPPFLAGS"
+                               ])
+               fi
+       done
+
+       if test "$cf_cv_find_linkage_$3" = maybe ; then
+
+               CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
+
+               cf_save_LIBS="$LIBS"
+               cf_save_LDFLAGS="$LDFLAGS"
+
+               ifelse([$6],,,[
+               CPPFLAGS="$cf_test_CPPFLAGS"
+               LIBS="-l$3 $7 $cf_save_LIBS"
+               AC_TRY_LINK([$1],[$2],[
+                       CF_VERBOSE(... found $3 library in system)
+                       cf_cv_find_linkage_$3=yes])
+                       CPPFLAGS="$cf_save_CPPFLAGS"
+                       LIBS="$cf_save_LIBS"
+                       ])
+
+               if test "$cf_cv_find_linkage_$3" != yes ; then
+                       CF_LIBRARY_PATH(cf_search,$3)
+                       for cf_cv_library_path_$3 in $cf_search
+                       do
+                               if test -d $cf_cv_library_path_$3 ; then
+                                       CF_VERBOSE(... testing $cf_cv_library_path_$3)
+                                       CPPFLAGS="$cf_test_CPPFLAGS"
+                                       LIBS="-l$3 $7 $cf_save_LIBS"
+                                       LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
+                                       AC_TRY_LINK([$1],[$2],[
+                                       CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
+                                       cf_cv_find_linkage_$3=yes
+                                       cf_cv_library_file_$3="-l$3"
+                                       break],[
+                                       CPPFLAGS="$cf_save_CPPFLAGS"
+                                       LIBS="$cf_save_LIBS"
+                                       LDFLAGS="$cf_save_LDFLAGS"
+                                       ])
+                               fi
+                       done
+                       CPPFLAGS="$cf_save_CPPFLAGS"
+                       LDFLAGS="$cf_save_LDFLAGS"
+               fi
+
+       else
+               cf_cv_find_linkage_$3=no
+       fi
+       ],$7)
 ])
 
+LIBS="$cf_save_LIBS"
+
 if test "$cf_cv_find_linkage_$3" = yes ; then
 ifelse([$4],,[
-  CF_ADD_INCDIR($cf_cv_header_path_$3)
-  CF_ADD_LIBDIR($cf_cv_library_path_$3)
-  LIBS="-l$3 $LIBS"
+       CF_ADD_INCDIR($cf_cv_header_path_$3)
+       CF_ADD_LIBDIR($cf_cv_library_path_$3)
+       CF_ADD_LIB($3)
 ],[$4])
 else
 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_FUNC_CURSES_VERSION version: 4 updated: 2007/04/28 09:15:55
+dnl CF_FUNC_CURSES_VERSION version: 6 updated: 2012/10/06 16:39:58
 dnl ----------------------
 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
 dnl It's a character string "SVR4", not documented.
@@ -1010,21 +1283,21 @@ AC_DEFUN([CF_FUNC_CURSES_VERSION],
 [
 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
 AC_TRY_RUN([
-#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 int main()
 {
        char temp[1024];
        sprintf(temp, "%s\n", curses_version());
-       ${cf_cv_main_return-return}(0);
+       ${cf_cv_main_return:-return}(0);
 }]
 ,[cf_cv_func_curses_version=yes]
 ,[cf_cv_func_curses_version=no]
 ,[cf_cv_func_curses_version=unknown])
 rm -f core])
-test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION)
+test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_ATTRIBUTES version: 13 updated: 2009/08/11 20:19:56
+dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
 dnl -----------------
 dnl Test for availability of useful gcc __attribute__ directives to quiet
 dnl compiler warnings.  Though useful, not all are supported -- and contrary
@@ -1051,7 +1324,7 @@ if test "$GCC" = yes
 then
        AC_CHECKING([for $CC __attribute__ directives])
 cat > conftest.$ac_ext <<EOF
-#line __oline__ "${as_me-configure}"
+#line __oline__ "${as_me:-configure}"
 #include "confdefs.h"
 #include "conftest.h"
 #include "conftest.i"
@@ -1078,20 +1351,20 @@ EOF
                cf_directive="__attribute__(($cf_attribute))"
                echo "checking for $CC $cf_directive" 1>&AC_FD_CC
 
-               case $cf_attribute in #(vi
-               printf) #(vi
+               case $cf_attribute in
+               (printf)
                        cf_printf_attribute=yes
                        cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE 1
 EOF
                        ;;
-               scanf) #(vi
+               (scanf)
                        cf_scanf_attribute=yes
                        cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE 1
 EOF
                        ;;
-               *) #(vi
+               (*)
                        cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE $cf_directive
 EOF
@@ -1101,28 +1374,28 @@ EOF
                if AC_TRY_EVAL(ac_compile); then
                        test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
                        cat conftest.h >>confdefs.h
-                       case $cf_attribute in #(vi
-                       printf) #(vi
-                               if test "$cf_printf_attribute" = no ; then
-                                       cat >>confdefs.h <<EOF
-#define GCC_PRINTFLIKE(fmt,var) /* nothing */
-EOF
-                               else
-                                       cat >>confdefs.h <<EOF
-#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
-EOF
+                       case $cf_attribute in
+                       (noreturn)
+                               AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
+                               ;;
+                       (printf)
+                               cf_value='/* nothing */'
+                               if test "$cf_printf_attribute" != no ; then
+                                       cf_value='__attribute__((format(printf,fmt,var)))'
+                                       AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
                                fi
+                               AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
                                ;;
-                       scanf) #(vi
-                               if test "$cf_scanf_attribute" = no ; then
-                                       cat >>confdefs.h <<EOF
-#define GCC_SCANFLIKE(fmt,var) /* nothing */
-EOF
-                               else
-                                       cat >>confdefs.h <<EOF
-#define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
-EOF
+                       (scanf)
+                               cf_value='/* nothing */'
+                               if test "$cf_scanf_attribute" != no ; then
+                                       cf_value='__attribute__((format(scanf,fmt,var)))'
+                                       AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
                                fi
+                               AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
+                               ;;
+                       (unused)
+                               AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
                                ;;
                        esac
                fi
@@ -1134,7 +1407,7 @@ rm -rf conftest*
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_VERSION version: 4 updated: 2005/08/27 09:53:42
+dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
 dnl --------------
 dnl Find version of gcc
 AC_DEFUN([CF_GCC_VERSION],[
@@ -1142,13 +1415,13 @@ 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,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
+       GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
        test -z "$GCC_VERSION" && GCC_VERSION=unknown
        AC_MSG_RESULT($GCC_VERSION)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_WARNINGS version: 24 updated: 2009/02/01 15:21:00
+dnl CF_GCC_WARNINGS version: 32 updated: 2015/04/12 15:39:00
 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:
@@ -1171,9 +1444,10 @@ AC_DEFUN([CF_GCC_WARNINGS],
 [
 AC_REQUIRE([CF_GCC_VERSION])
 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
+CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
 
 cat > conftest.$ac_ext <<EOF
-#line __oline__ "${as_me-configure}"
+#line __oline__ "${as_me:-configure}"
 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
 EOF
 
@@ -1216,13 +1490,17 @@ elif test "$GCC" = yes
 then
        AC_CHECKING([for $CC warning options])
        cf_save_CFLAGS="$CFLAGS"
-       EXTRA_CFLAGS="-W -Wall"
+       EXTRA_CFLAGS=
        cf_warn_CONST=""
        test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
-       for cf_opt in \
+       cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
+       test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
+       for cf_opt in W Wall \
                Wbad-function-cast \
                Wcast-align \
                Wcast-qual \
+               Wdeclaration-after-statement \
+               Wextra \
                Winline \
                Wmissing-declarations \
                Wmissing-prototypes \
@@ -1230,18 +1508,25 @@ then
                Wpointer-arith \
                Wshadow \
                Wstrict-prototypes \
-               Wundef $cf_warn_CONST $1
+               Wundef $cf_gcc_warnings $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
+                       case $cf_opt in
+                       (Wcast-qual)
                                CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
                                ;;
-                       Winline) #(vi
+                       (Winline)
+                               case $GCC_VERSION in
+                               ([[34]].*)
+                                       CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
+                                       continue;;
+                               esac
+                               ;;
+                       (Wpointer-arith)
                                case $GCC_VERSION in
-                               [[34]].*)
+                               ([[12]].*)
                                        CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
                                        continue;;
                                esac
@@ -1252,11 +1537,37 @@ then
        done
        CFLAGS="$cf_save_CFLAGS"
 fi
-rm -f conftest*
+rm -rf conftest*
 
 AC_SUBST(EXTRA_CFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
+dnl ----------------
+dnl Check for getopt's variables which are commonly defined in stdlib.h,
+dnl unistd.h or (nonstandard) in getopt.h
+AC_DEFUN([CF_GETOPT_HEADER],
+[
+AC_HAVE_HEADERS(unistd.h getopt.h)
+AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
+cf_cv_getopt_header=none
+for cf_header in stdio.h stdlib.h unistd.h getopt.h
+do
+AC_TRY_COMPILE([
+#include <$cf_header>],
+[int x = optind; char *y = optarg],
+[cf_cv_getopt_header=$cf_header
+ break])
+done
+])
+if test $cf_cv_getopt_header != none ; then
+       AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
+fi
+if test $cf_cv_getopt_header = getopt.h ; then
+       AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
 dnl -------------
 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
@@ -1287,7 +1598,7 @@ make an error
 test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_HEADER_PATH version: 10 updated: 2010/01/17 20:36:17
+dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
 dnl --------------
 dnl Construct a search-list of directories for a nonstandard header-file
 dnl
@@ -1297,12 +1608,14 @@ dnl     $2 = the package name
 AC_DEFUN([CF_HEADER_PATH],
 [
 $1=
+
+# collect the current set of include-directories from compiler flags
 cf_header_path_list=""
 if test -n "${CFLAGS}${CPPFLAGS}" ; then
        for cf_header_path in $CPPFLAGS $CFLAGS
        do
-               case $cf_header_path in #(vi
-               -I*)
+               case $cf_header_path in
+               (-I*)
                        cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
                        CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
                        cf_header_path_list="$cf_header_path_list [$]$1"
@@ -1311,6 +1624,7 @@ if test -n "${CFLAGS}${CPPFLAGS}" ; then
        done
 fi
 
+# add the variations for the package we are looking for
 CF_SUBDIR_PATH($1,$2,include)
 
 test "$includedir" != NONE && \
@@ -1327,7 +1641,14 @@ test -d "$oldincludedir" && {
        test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
 }
 
-$1="$cf_header_path_list [$]$1"
+$1="[$]$1 $cf_header_path_list"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
+dnl ---------------
+dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
+AC_DEFUN([CF_HELP_MESSAGE],
+[AC_DIVERT_HELP([$1])dnl
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
@@ -1338,7 +1659,7 @@ 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 CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
 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
@@ -1352,49 +1673,104 @@ 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
+AC_REQUIRE([AC_CANONICAL_HOST])
+ifelse([$2],,INTEL_COMPILER,[$2])=no
 
-if test "$ifelse($1,,[$1],GCC)" = yes ; then
+if test "$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"
+       (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([$2],,INTEL_COMPILER,[$2])=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -we147"
 ],[])
-               ifelse($3,,CFLAGS,[$3])="$cf_save_CFLAGS"
-               AC_MSG_RESULT($ifelse($2,,INTEL_COMPILER,[$2]))
+               ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
+               AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
                ;;
        esac
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIBRARY_PATH version: 9 updated: 2010/03/28 12:52:50
+dnl CF_LD_RPATH_OPT version: 6 updated: 2015/04/12 15:39:00
 dnl ---------------
-dnl Construct a search-list of directories for a nonstandard library-file
-dnl
-dnl Parameters
-dnl    $1 = the variable to return as result
-dnl    $2 = the package name
-AC_DEFUN([CF_LIBRARY_PATH],
+dnl For the given system and compiler, find the compiler flags to pass to the
+dnl loader to use the "rpath" feature.
+AC_DEFUN([CF_LD_RPATH_OPT],
 [
-$1=
-cf_library_path_list=""
-if test -n "${LDFLAGS}${LIBS}" ; then
-       for cf_library_path in $LDFLAGS $LIBS
-       do
-               case $cf_library_path in #(vi
-               -L*)
-                       cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
-                       CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
-                       cf_library_path_list="$cf_library_path_list [$]$1"
-                       ;;
+AC_REQUIRE([CF_CHECK_CACHE])
+
+LD_RPATH_OPT=
+AC_MSG_CHECKING(for an rpath option)
+case $cf_cv_system_name in
+(irix*)
+       if test "$GCC" = yes; then
+               LD_RPATH_OPT="-Wl,-rpath,"
+       else
+               LD_RPATH_OPT="-rpath "
+       fi
+       ;;
+(linux*|gnu*|k*bsd*-gnu)
+       LD_RPATH_OPT="-Wl,-rpath,"
+       ;;
+(openbsd[[2-9]].*|mirbsd*)
+       LD_RPATH_OPT="-Wl,-rpath,"
+       ;;
+(dragonfly*|freebsd*)
+       LD_RPATH_OPT="-rpath "
+       ;;
+(netbsd*)
+       LD_RPATH_OPT="-Wl,-rpath,"
+       ;;
+(osf*|mls+*)
+       LD_RPATH_OPT="-rpath "
+       ;;
+(solaris2*)
+       LD_RPATH_OPT="-R"
+       ;;
+(*)
+       ;;
+esac
+AC_MSG_RESULT($LD_RPATH_OPT)
+
+case "x$LD_RPATH_OPT" in
+(x-R*)
+       AC_MSG_CHECKING(if we need a space after rpath option)
+       cf_save_LIBS="$LIBS"
+       CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
+       AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
+       LIBS="$cf_save_LIBS"
+       AC_MSG_RESULT($cf_rpath_space)
+       test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
+       ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
+dnl ---------------
+dnl Construct a search-list of directories for a nonstandard library-file
+dnl
+dnl Parameters
+dnl    $1 = the variable to return as result
+dnl    $2 = the package name
+AC_DEFUN([CF_LIBRARY_PATH],
+[
+$1=
+cf_library_path_list=""
+if test -n "${LDFLAGS}${LIBS}" ; then
+       for cf_library_path in $LDFLAGS $LIBS
+       do
+               case $cf_library_path in
+               (-L*)
+                       cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
+                       CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
+                       cf_library_path_list="$cf_library_path_list [$]$1"
+                       ;;
                esac
        done
 fi
@@ -1404,7 +1780,7 @@ CF_SUBDIR_PATH($1,$2,lib)
 $1="$cf_library_path_list [$]$1"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MAKE_TAGS version: 5 updated: 2010/04/03 20:07:32
+dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
 dnl ------------
 dnl Generate tags/TAGS targets for makefiles.  Do not generate TAGS if we have
 dnl a monocase filesystem.
@@ -1414,10 +1790,10 @@ AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
 AC_CHECK_PROGS(CTAGS, exctags ctags)
 AC_CHECK_PROGS(ETAGS, exetags etags)
 
-AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS-ctags}, yes, no)
+AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
 
 if test "$cf_cv_mixedcase" = yes ; then
-       AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS-etags}, yes, no)
+       AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
 else
        MAKE_UPPER_TAGS=no
 fi
@@ -1441,38 +1817,31 @@ AC_SUBST(MAKE_UPPER_TAGS)
 AC_SUBST(MAKE_LOWER_TAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MIN_GETCCHAR version: 2 updated: 2009/07/16 21:03:10
-dnl ---------------
-dnl CF_MIN_GETCCHAR
-dnl Check whether getcchar's return value counts the trailing null in a wchar_t
-dnl string, or not.  X/Open says it does, but Tru64 and Solaris do not do this.
-AC_DEFUN([CF_MIN_GETCCHAR],[
-AC_CACHE_CHECK(if getcchar counts trailing null,cf_cv_min_getcchar,[
-AC_TRY_RUN([
-#include <stdlib.h>
-#include <stdarg.h>
-#include <${cf_cv_ncurses_header-curses.h}>
-
-int main()
-{
-       wchar_t data[2];
-       cchar_t temp[2];
-       int count;
-       data[0] = L'\0';
-    setcchar(temp, data, 0, 0, (void *)0);
-       count = getcchar(temp, (wchar_t *)0, (attr_t *)0, (short *)0, (void *)0);
-       ${cf_cv_main_return-return}(count != 0);
-}],
-       [cf_cv_min_getcchar=no],
-       [cf_cv_min_getcchar=yes],
-       [cf_cv_min_getcchar=yes])
-])
-if test "$cf_cv_min_getcchar" = yes ; then
-       AC_DEFINE(MIN_GETCCHAR,1)
+dnl CF_MATH_LIB version: 8 updated: 2010/05/29 16:31:02
+dnl -----------
+dnl Checks for libraries.  At least one UNIX system, Apple Macintosh
+dnl Rhapsody 5.5, does not have -lm.  We cannot use the simpler
+dnl AC_CHECK_LIB(m,sin), because that fails for C++.
+AC_DEFUN([CF_MATH_LIB],
+[
+AC_CACHE_CHECK(if -lm needed for math functions,
+       cf_cv_need_libm,[
+       AC_TRY_LINK([
+       #include <stdio.h>
+       #include <math.h>
+       ],
+       [double x = rand(); printf("result = %g\n", ]ifelse([$2],,sin(x),$2)[)],
+       [cf_cv_need_libm=no],
+       [cf_cv_need_libm=yes])])
+if test "$cf_cv_need_libm" = yes
+then
+ifelse($1,,[
+       CF_ADD_LIB(m)
+],[$1=-lm])
 fi
-])dnl
+])
 dnl ---------------------------------------------------------------------------
-dnl CF_MIXEDCASE_FILENAMES version: 3 updated: 2003/09/20 17:07:55
+dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
 dnl ----------------------
 dnl Check if the file-system supports mixed-case filenames.  If we're able to
 dnl create a lowercase name and see it as uppercase, it doesn't support that.
@@ -1480,11 +1849,11 @@ AC_DEFUN([CF_MIXEDCASE_FILENAMES],
 [
 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
 if test "$cross_compiling" = yes ; then
-       case $target_alias in #(vi
-       *-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-mingw32*|*-uwin*) #(vi
+       case $target_alias in
+       (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
                cf_cv_mixedcase=no
                ;;
-       *)
+       (*)
                cf_cv_mixedcase=yes
                ;;
        esac
@@ -1499,15 +1868,15 @@ else
        rm -f conftest CONFTEST
 fi
 ])
-test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES)
+test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MSG_LOG version: 4 updated: 2007/07/29 09:55:12
+dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
 dnl ----------
 dnl Write a debug message to config.log, along with the line number in the
 dnl configure script.
 AC_DEFUN([CF_MSG_LOG],[
-echo "${as_me-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
+echo "${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
@@ -1543,46 +1912,100 @@ printf("old\n");
        ,[$1=no])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_CONFIG version: 5 updated: 2009/01/11 15:31:22
+dnl CF_NCURSES_CONFIG version: 17 updated: 2015/07/07 04:22:07
 dnl -----------------
-dnl Tie together the configure-script macros for ncurses.
-dnl Prefer the "-config" script from ncurses 5.6, to simplify analysis.
-dnl Allow that to be overridden using the $NCURSES_CONFIG environment variable.
+dnl Tie together the configure-script macros for ncurses, preferring these in
+dnl order:
+dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
+dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
+dnl c) just plain libraries
 dnl
 dnl $1 is the root library name (default: "ncurses")
-AC_DEFUN([CF_NCURSES_CONFIG],
-[
+AC_DEFUN([CF_NCURSES_CONFIG],[
+AC_REQUIRE([CF_PKG_CONFIG])
 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
+cf_have_ncuconfig=no
 
-echo "Looking for ${cf_ncuconfig_root}-config"
-AC_PATH_PROGS(NCURSES_CONFIG,${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config,none)
+if test "x${PKG_CONFIG:=none}" != xnone; then
+       AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
+       if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
+               AC_MSG_RESULT(yes)
 
-if test "$NCURSES_CONFIG" != none ; then
+               AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
+               cf_have_ncuconfig=unknown
 
-cf_cv_ncurses_header=curses.h
+               cf_save_CPPFLAGS="$CPPFLAGS"
+               cf_save_LIBS="$LIBS"
 
-CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
-LIBS="`$NCURSES_CONFIG --libs` $LIBS"
+               CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags $cf_ncuconfig_root`"
+               CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
+
+               AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
+                       [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
+                       [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
+                               int main(void)
+                               { char *xx = curses_version(); return (xx == 0); }],
+                               [cf_have_ncuconfig=yes],
+                               [cf_have_ncuconfig=no],
+                               [cf_have_ncuconfig=maybe])],
+                       [cf_have_ncuconfig=no])
+               AC_MSG_RESULT($cf_have_ncuconfig)
+               test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
+               if test "$cf_have_ncuconfig" != "yes"
+               then
+                       CPPFLAGS="$cf_save_CPPFLAGS"
+                       LIBS="$cf_save_LIBS"
+                       NCURSES_CONFIG_PKG=none
+               else
+                       AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
+                       NCURSES_CONFIG_PKG=$cf_ncuconfig_root
+               fi
 
-dnl like CF_NCURSES_CPPFLAGS
-AC_DEFINE(NCURSES)
+       else
+               AC_MSG_RESULT(no)
+               NCURSES_CONFIG_PKG=none
+       fi
+else
+       NCURSES_CONFIG_PKG=none
+fi
 
-dnl like CF_NCURSES_LIBS
-CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
-AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
+if test "x$cf_have_ncuconfig" = "xno"; then
+       echo "Looking for ${cf_ncuconfig_root}-config"
 
-dnl like CF_NCURSES_VERSION
-cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
+       CF_ACVERSION_CHECK(2.52,
+               [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncuconfig_root}-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
+               [AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncuconfig_root}-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
 
-else
+       if test "$NCURSES_CONFIG" != none ; then
+
+               CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
+               CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
+
+               # even with config script, some packages use no-override for curses.h
+               CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
+
+               dnl like CF_NCURSES_CPPFLAGS
+               AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
+
+               dnl like CF_NCURSES_LIBS
+               CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
+               AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
+
+               dnl like CF_NCURSES_VERSION
+               cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
+
+       else
 
-CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
-CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
+               CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
+               CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
 
+       fi
+else
+       NCURSES_CONFIG=none
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_CPPFLAGS version: 19 updated: 2007/07/29 13:35:20
+dnl CF_NCURSES_CPPFLAGS version: 21 updated: 2012/10/06 08:57:51
 dnl -------------------
 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
 dnl the CPPFLAGS variable so we can include its header.
@@ -1611,7 +2034,7 @@ 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)
+  CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
 }
 
 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
@@ -1628,12 +2051,12 @@ CF_NCURSES_HEADER
 CF_TERM_HEADER
 
 # some applications need this, but should check for NCURSES_VERSION
-AC_DEFINE(NCURSES)
+AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
 
 CF_NCURSES_VERSION
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_EXT_FUNCS version: 1 updated: 2010/04/03 11:44:55
+dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
 dnl --------------------
 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
 dnl may provide these functions.  Define the symbol if it is not defined, and
@@ -1642,12 +2065,12 @@ AC_DEFUN([CF_NCURSES_EXT_FUNCS],
 [
 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
 AC_TRY_COMPILE([
-#include <${cf_cv_ncurses_header-curses.h}>],
+#include <${cf_cv_ncurses_header:-curses.h}>],
 [
 int x = NCURSES_EXT_FUNCS
 ],[cf_cv_ncurses_ext_funcs=defined],[
 AC_TRY_LINK([
-#include <${cf_cv_ncurses_header-curses.h}>],
+#include <${cf_cv_ncurses_header:-curses.h}>],
 [
        (void) assume_default_colors (0, 0);
        (void) curses_version ();
@@ -1665,10 +2088,10 @@ AC_TRY_LINK([
        [cf_cv_ncurses_ext_funcs=no])
 ])
 ])
-test "$cf_cv_ncurses_ext_funcs" == yes && AC_DEFINE(NCURSES_EXT_FUNCS)
+test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_HEADER version: 2 updated: 2008/03/23 14:48:54
+dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
 dnl -----------------
 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 dnl variations of ncurses' installs.
@@ -1717,24 +2140,24 @@ fi
 
 # Set definitions to allow ifdef'ing for ncurses.h
 
-case $cf_cv_ncurses_header in # (vi
-*ncurses.h)
-       AC_DEFINE(HAVE_NCURSES_H)
+case $cf_cv_ncurses_header in
+(*ncurses.h)
+       AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
        ;;
 esac
 
-case $cf_cv_ncurses_header in # (vi
-ncurses/curses.h|ncurses/ncurses.h)
-       AC_DEFINE(HAVE_NCURSES_NCURSES_H)
+case $cf_cv_ncurses_header in
+(ncurses/curses.h|ncurses/ncurses.h)
+       AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
        ;;
-ncursesw/curses.h|ncursesw/ncurses.h)
-       AC_DEFINE(HAVE_NCURSESW_NCURSES_H)
+(ncursesw/curses.h|ncursesw/ncurses.h)
+       AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
        ;;
 esac
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_LIBS version: 13 updated: 2007/07/29 10:29:20
+dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
 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.
@@ -1760,8 +2183,8 @@ AC_CHECK_LIB(gpm,Gpm_Open,
                [LIBS="$cf_ncurses_SAVE"],
                [cf_ncurses_LIBS="-lgpm"])])
 
-case $host_os in #(vi
-freebsd*)
+case $host_os in
+(freebsd*)
        # This is only necessary if you are linking against an obsolete
        # version of ncurses (but it should do no harm, since it's static).
        if test "$cf_nculib_root" = ncurses ; then
@@ -1770,15 +2193,14 @@ freebsd*)
        ;;
 esac
 
-LIBS="$cf_ncurses_LIBS $LIBS"
+CF_ADD_LIBS($cf_ncurses_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 $LIBS"
+       CF_ADD_LIBS(-l$cf_nculib_root)
 else
        CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
-               [#include <${cf_cv_ncurses_header-curses.h}>],
+               [#include <${cf_cv_ncurses_header:-curses.h}>],
                [initscr()],
                initscr)
 fi
@@ -1792,7 +2214,7 @@ if test -n "$cf_ncurses_LIBS" ; then
                        LIBS="$q"
                fi
        done
-       AC_TRY_LINK([#include <${cf_cv_ncurses_header-curses.h}>],
+       AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
                [initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
                [AC_MSG_RESULT(yes)],
                [AC_MSG_RESULT(no)
@@ -1803,7 +2225,7 @@ 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 CF_NCURSES_VERSION version: 14 updated: 2012/10/06 08:57:51
 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
@@ -1816,7 +2238,7 @@ AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
        cf_tempfile=out$$
        rm -f $cf_tempfile
        AC_TRY_RUN([
-#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 #include <stdio.h>
 int main()
 {
@@ -1834,14 +2256,14 @@ int main()
        make an error
 # endif
 #endif
-       ${cf_cv_main_return-return}(0);
+       ${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}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 #undef Autoconf
 #ifdef NCURSES_VERSION
 Autoconf NCURSES_VERSION
@@ -1862,7 +2284,7 @@ EOF
 ])
        rm -f $cf_tempfile
 ])
-test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES)
+test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
@@ -1881,7 +2303,75 @@ AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
 AC_SUBST(NCURSES_WRAP_PREFIX)
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_PATH_SYNTAX version: 12 updated: 2008/03/23 14:45:59
+dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
+dnl ----------------
+dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
+dnl Some workarounds are needed in client programs to allow them to compile.
+AC_DEFUN([CF_NETBSD_FORM_H],[
+AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
+AC_TRY_COMPILE([
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <form.h>
+],[
+       FORM *form;
+       int y = current_field(form)->cursor_ypos;
+       int x = current_field(form)->cursor_xpos;
+],[cf_cv_netbsd_form_h=yes
+],[cf_cv_netbsd_form_h=no])
+])
+
+test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
+dnl ----------------
+dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
+dnl Some workarounds are needed in client programs to allow them to compile.
+AC_DEFUN([CF_NETBSD_MENU_H],[
+AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
+AC_TRY_COMPILE([
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <menu.h>
+],[
+       MENU *menu;
+       int y = menu->max_item_width;
+],[cf_cv_netbsd_menu_h=yes
+],[cf_cv_netbsd_menu_h=no])
+])
+
+test "$cf_cv_netbsd_menu_h" = yes && AC_DEFINE(HAVE_NETBSD_MENU_H,1,[Define to 1 if we appear to be using NetBSD menu.h])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_NO_LEAKS_OPTION version: 6 updated: 2015/04/12 15:39:00
+dnl ------------------
+dnl see CF_WITH_NO_LEAKS
+AC_DEFUN([CF_NO_LEAKS_OPTION],[
+AC_MSG_CHECKING(if you want to use $1 for testing)
+AC_ARG_WITH($1,
+       [$2],
+       [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
+        $4
+])
+       : ${with_cflags:=-g}
+       : ${with_no_leaks:=yes}
+        with_$1=yes],
+       [with_$1=])
+AC_MSG_RESULT(${with_$1:-no})
+
+case .$with_cflags in
+(.*-g*)
+       case .$CFLAGS in
+       (.*-g*)
+               ;;
+       (*)
+               CF_ADD_CFLAGS([-g])
+               ;;
+       esac
+       ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
 dnl --------------
 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
 dnl begins with one of the prefix/exec_prefix variables, and then again if the
@@ -1889,47 +2379,49 @@ dnl result begins with 'NONE'.  This is necessary to work around autoconf's
 dnl delayed evaluation of those symbols.
 AC_DEFUN([CF_PATH_SYNTAX],[
 if test "x$prefix" != xNONE; then
-  cf_path_syntax="$prefix"
+       cf_path_syntax="$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($2,,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
-  ;;
+       cf_path_syntax="$ac_default_prefix"
+fi
+
+case ".[$]$1" in
+(.\[$]\(*\)*|.\'*\'*)
+       ;;
+(..|./*|.\\*)
+       ;;
+(.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
+       ;;
+(.\[$]{*prefix}*|.\[$]{*dir}*)
+       eval $1="[$]$1"
+       case ".[$]$1" in
+       (.NONE/*)
+               $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+               ;;
+       esac
+       ;;
+(.no|.NONE/*)
+       $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+       ;;
+(*)
+       ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
+       ;;
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PDCURSES_X11 version: 9 updated: 2009/01/11 15:31:37
+dnl CF_PDCURSES_X11 version: 13 updated: 2012/10/06 16:39:58
 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)
+CF_ACVERSION_CHECK(2.52,
+       [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
+       [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
 
 if test "$XCURSES_CONFIG" != none ; then
 
 CPPFLAGS="$CPPFLAGS `$XCURSES_CONFIG --cflags`"
-LIBS="`$XCURSES_CONFIG --libs` $LIBS"
+CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
 
 cf_cv_lib_XCurses=yes
 
@@ -1938,10 +2430,10 @@ else
 LDFLAGS="$LDFLAGS $X_LIBS"
 CF_CHECK_CFLAGS($X_CFLAGS)
 AC_CHECK_LIB(X11,XOpenDisplay,
-       [LIBS="-lX11 $LIBS"],,
+       [CF_ADD_LIBS(-lX11)],,
        [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
-LIBS="-lXCurses $LIBS"
+CF_ADD_LIBS(-lXCurses)
 AC_TRY_LINK([
 #include <xcurses.h>
 char *XCursesProgramName = "test";
@@ -1953,15 +2445,51 @@ char *XCursesProgramName = "test";
 fi
 
 if test $cf_cv_lib_XCurses = yes ; then
-       AC_DEFINE(UNIX)
-       AC_DEFINE(XCURSES)
-       AC_DEFINE(HAVE_XCURSES)
+       AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
+       AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
+       AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
 else
        AC_MSG_ERROR(Cannot link with XCurses)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_POSIX_C_SOURCE version: 7 updated: 2010/01/09 11:05:50
+dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
+dnl -------------
+dnl Check for the package-config program, unless disabled by command-line.
+AC_DEFUN([CF_PKG_CONFIG],
+[
+AC_MSG_CHECKING(if you want to use pkg-config)
+AC_ARG_WITH(pkg-config,
+       [  --with-pkg-config{=path} enable/disable use of pkg-config],
+       [cf_pkg_config=$withval],
+       [cf_pkg_config=yes])
+AC_MSG_RESULT($cf_pkg_config)
+
+case $cf_pkg_config in
+(no)
+       PKG_CONFIG=none
+       ;;
+(yes)
+       CF_ACVERSION_CHECK(2.52,
+               [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
+               [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
+       ;;
+(*)
+       PKG_CONFIG=$withval
+       ;;
+esac
+
+test -z "$PKG_CONFIG" && PKG_CONFIG=none
+if test "$PKG_CONFIG" != none ; then
+       CF_PATH_SYNTAX(PKG_CONFIG)
+elif test "x$cf_pkg_config" != xno ; then
+       AC_MSG_WARN(pkg-config is not installed)
+fi
+
+AC_SUBST(PKG_CONFIG)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_POSIX_C_SOURCE version: 9 updated: 2015/04/12 15:39:00
 dnl -----------------
 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
 dnl
@@ -1977,7 +2505,7 @@ 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_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
 
 cf_save_CFLAGS="$CFLAGS"
 cf_save_CPPFLAGS="$CPPFLAGS"
@@ -1993,15 +2521,15 @@ make an error
 #endif],
        [cf_cv_posix_c_source=no],
        [cf_want_posix_source=no
-        case .$cf_POSIX_C_SOURCE in #(vi
-        .[[12]]??*) #(vi
+        case .$cf_POSIX_C_SOURCE in
+        (.[[12]]??*)
                cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
                ;;
-        .2) #(vi
+        (.2)
                cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
                cf_want_posix_source=yes
                ;;
-        .*)
+        (.*)
                cf_want_posix_source=yes
                ;;
         esac
@@ -2058,29 +2586,43 @@ 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],
+dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
+dnl ----------
+dnl standard check for CC, plus followup sanity checks
+dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
+AC_DEFUN([CF_PROG_CC],[
+ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
+CF_GCC_VERSION
+CF_ACVERSION_CHECK(2.52,
+       [AC_PROG_CC_STDC],
+       [CF_ANSI_CC_REQD])
+CF_CC_ENV_FLAGS
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
+dnl ---------------
+dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
+dnl misc/tabset install won't work properly.  Usually this happens only when
+dnl using the fallback mkinstalldirs script
+AC_DEFUN([CF_PROG_INSTALL],
+[AC_PROG_INSTALL
+case $INSTALL in
+(/*)
+       ;;
+(*)
+       CF_DIRNAME(cf_dir,$INSTALL)
+       test -z "$cf_dir" && cf_dir=.
+       INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
+       ;;
+esac
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_LINT version: 2 updated: 2009/08/12 04:43:14
+dnl ------------
+AC_DEFUN([CF_PROG_LINT],
 [
-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"
-])
+AC_CHECK_PROGS(LINT, tdlint lint alint splint lclint)
+AC_SUBST(LINT_OPTS)
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
@@ -2100,7 +2642,124 @@ $1=`echo "$2" | \
                -e 's/-[[UD]]'"$3"'\(=[[^       ]]*\)\?[$]//g'`
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SIG_ATOMIC_T version: 2 updated: 2005/09/18 17:27:12
+dnl CF_RPATH_HACK version: 11 updated: 2013/09/01 13:02:00
+dnl -------------
+AC_DEFUN([CF_RPATH_HACK],
+[
+AC_REQUIRE([CF_LD_RPATH_OPT])
+AC_MSG_CHECKING(for updated LDFLAGS)
+if test -n "$LD_RPATH_OPT" ; then
+       AC_MSG_RESULT(maybe)
+
+       AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
+       cf_rpath_list="/usr/lib /lib"
+       if test "$cf_ldd_prog" != no
+       then
+               cf_rpath_oops=
+
+AC_TRY_LINK([#include <stdio.h>],
+               [printf("Hello");],
+               [cf_rpath_oops=`$cf_ldd_prog conftest$ac_exeext | fgrep ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
+                cf_rpath_list=`$cf_ldd_prog conftest$ac_exeext | fgrep / | sed -e 's%^.*[[     ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
+
+               # If we passed the link-test, but get a "not found" on a given library,
+               # this could be due to inept reconfiguration of gcc to make it only
+               # partly honor /usr/local/lib (or whatever).  Sometimes this behavior
+               # is intentional, e.g., installing gcc in /usr/bin and suppressing the
+               # /usr/local libraries.
+               if test -n "$cf_rpath_oops"
+               then
+                       for cf_rpath_src in $cf_rpath_oops
+                       do
+                               for cf_rpath_dir in \
+                                       /usr/local \
+                                       /usr/pkg \
+                                       /opt/sfw
+                               do
+                                       if test -f $cf_rpath_dir/lib/$cf_rpath_src
+                                       then
+                                               CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
+                                               LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
+                                               break
+                                       fi
+                               done
+                       done
+               fi
+       fi
+
+       CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
+
+       CF_RPATH_HACK_2(LDFLAGS)
+       CF_RPATH_HACK_2(LIBS)
+
+       CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
+else
+       AC_MSG_RESULT(no)
+fi
+AC_SUBST(EXTRA_LDFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_RPATH_HACK_2 version: 7 updated: 2015/04/12 15:39:00
+dnl ---------------
+dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
+dnl EXTRA_LDFLAGS for each -L option found.
+dnl
+dnl $cf_rpath_list contains a list of directories to ignore.
+dnl
+dnl $1 = variable name to update.  The LDFLAGS variable should be the only one,
+dnl      but LIBS often has misplaced -L options.
+AC_DEFUN([CF_RPATH_HACK_2],
+[
+CF_VERBOSE(...checking $1 [$]$1)
+
+cf_rpath_dst=
+for cf_rpath_src in [$]$1
+do
+       case $cf_rpath_src in
+       (-L*)
+
+               # check if this refers to a directory which we will ignore
+               cf_rpath_skip=no
+               if test -n "$cf_rpath_list"
+               then
+                       for cf_rpath_item in $cf_rpath_list
+                       do
+                               if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
+                               then
+                                       cf_rpath_skip=yes
+                                       break
+                               fi
+                       done
+               fi
+
+               if test "$cf_rpath_skip" = no
+               then
+                       # transform the option
+                       if test "$LD_RPATH_OPT" = "-R " ; then
+                               cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
+                       else
+                               cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
+                       fi
+
+                       # if we have not already added this, add it now
+                       cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
+                       if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
+                       then
+                               CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
+                               EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
+                       fi
+               fi
+               ;;
+       esac
+       cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
+done
+$1=$cf_rpath_dst
+
+CF_VERBOSE(...checked $1 [$]$1)
+AC_SUBST(EXTRA_LDFLAGS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SIG_ATOMIC_T version: 3 updated: 2012/10/04 20:12:20
 dnl ---------------
 dnl signal handler, but there are some gcc depedencies in that recommendation.
 dnl Try anyway.
@@ -2132,26 +2791,34 @@ static void handler(int sig)
        done
        ])
 AC_MSG_RESULT($cf_cv_sig_atomic_t)
-test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t)
+test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SUBDIR_PATH version: 5 updated: 2007/07/29 09:55:12
+dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
 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=""
+[
+$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,$prefix)
+
+for cf_subdir_prefix in \
+       /usr \
+       /usr/local \
+       /usr/pkg \
+       /opt \
+       /opt/local \
+       [$]HOME
+do
+       CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
+done
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SYS_TIME_SELECT version: 4 updated: 2000/10/04 09:18:40
+dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
 dnl ------------------
 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
 dnl older SCO configurations.
@@ -2168,24 +2835,24 @@ AC_TRY_COMPILE([
 #include <sys/select.h>
 #endif
 ],[],[cf_cv_sys_time_select=yes],
-     [cf_cv_sys_time_select=no])
-     ])
+        [cf_cv_sys_time_select=no])
+        ])
 AC_MSG_RESULT($cf_cv_sys_time_select)
-test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT)
+test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_TERM_HEADER version: 1 updated: 2005/12/31 13:26:39
+dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
 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
+case ${cf_cv_ncurses_header} in
+(*/ncurses.h|*/ncursesw.h)
        cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
        ;;
-*)
+(*)
        cf_term_header=term.h
        ;;
 esac
@@ -2193,7 +2860,7 @@ 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 <${cf_cv_ncurses_header:-curses.h}>
 #include <$cf_test>
 ],[int x = auto_left_margin],[
        cf_cv_term_header="$cf_test"],[
@@ -2205,22 +2872,157 @@ done
 
 # Set definitions to allow ifdef'ing to accommodate subdirectories
 
-case $cf_cv_term_header in # (vi
-*term.h)
-       AC_DEFINE(HAVE_TERM_H)
+case $cf_cv_term_header in
+(*term.h)
+       AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
        ;;
 esac
 
-case $cf_cv_term_header in # (vi
-ncurses/term.h) #(vi
-       AC_DEFINE(HAVE_NCURSES_TERM_H)
+case $cf_cv_term_header in
+(ncurses/term.h)
+       AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
        ;;
-ncursesw/term.h)
-       AC_DEFINE(HAVE_NCURSESW_TERM_H)
+(ncursesw/term.h)
+       AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
        ;;
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
+dnl ---------------
+dnl Define a top_builddir symbol, for applications that need an absolute path.
+AC_DEFUN([CF_TOP_BUILDDIR],
+[
+top_builddir=ifelse($1,,`pwd`,$1)
+AC_SUBST(top_builddir)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_TPUTS_PROTO version: 3 updated: 2015/04/17 21:26:14
+dnl --------------
+dnl Check for type of function-pointer passed to tputs.  Some old
+dnl implementations used functions that had different prototypes, making it
+dnl hard to compile portable programs using tputs.
+AC_DEFUN([CF_TPUTS_PROTO],[
+CF_CURSES_FUNCS(tputs)
+if test x$cf_cv_func_tputs = xyes
+then
+       cf_done=no
+       for cf_arg in int char
+       do
+               for cf_ret in int void
+               do
+                       if test $cf_ret = void
+                       then
+                               cf_return="/* nothing */"
+                       else
+                               cf_return="return value"
+                       fi
+                       AC_TRY_COMPILE([
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <$cf_cv_term_header>
+
+static $cf_ret outc($cf_arg value) { $cf_return; }
+],[
+       tputs("hello", 0, outc);
+       ${cf_cv_main_return:-return}(0);
+],[
+               CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
+               cat >>confdefs.h <<EOF
+#define TPUTS_ARG               $cf_arg
+#define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
+#define TPUTS_RETURN(value)     $cf_return
+EOF
+               cf_done=yes
+               break
+])
+               done
+               test $cf_done = yes && break
+       done
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
+dnl --------------
+dnl Trim extra base X libraries added as a workaround for inconsistent library
+dnl dependencies returned by "new" pkg-config files.
+AC_DEFUN([CF_TRIM_X_LIBS],[
+       for cf_trim_lib in Xmu Xt X11
+       do
+               case "$LIBS" in
+               (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
+                       LIBS=`echo "$LIBS " | sed -e 's/  / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
+                       CF_VERBOSE(..trimmed $LIBS)
+                       ;;
+               esac
+       done
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_TRY_PKG_CONFIG version: 5 updated: 2013/07/06 21:27:06
+dnl -----------------
+dnl This is a simple wrapper to use for pkg-config, for libraries which may be
+dnl available in that form.
+dnl
+dnl $1 = package name
+dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
+dnl $3 = logic to use if pkg-config does not have the package
+AC_DEFUN([CF_TRY_PKG_CONFIG],[
+AC_REQUIRE([CF_PKG_CONFIG])
+
+if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists $1; then
+       CF_VERBOSE(found package $1)
+       cf_pkgconfig_incs="`$PKG_CONFIG --cflags $1 2>/dev/null`"
+       cf_pkgconfig_libs="`$PKG_CONFIG --libs   $1 2>/dev/null`"
+       CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
+       CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
+       CF_ADD_CFLAGS($cf_pkgconfig_incs)
+       CF_ADD_LIBS($cf_pkgconfig_libs)
+       ifelse([$2],,:,[$2])
+else
+       cf_pkgconfig_incs=
+       cf_pkgconfig_libs=
+       ifelse([$3],,:,[$3])
+fi
+])
+dnl ---------------------------------------------------------------------------
+dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl -------------------
+dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
+dnl can define it successfully.
+AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
+AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
+       AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+],[
+#ifndef _XOPEN_SOURCE
+make an error
+#endif],
+       [cf_cv_xopen_source=no],
+       [cf_save="$CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+        AC_TRY_COMPILE([
+#include <stdlib.h>
+#include <string.h>
+#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,$CPPFLAGS,_XOPEN_SOURCE)
+       cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
+       CF_ADD_CFLAGS($cf_temp_xopen_source)
+fi
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
 dnl --------
 dnl Make an uppercase version of a variable
@@ -2230,7 +3032,7 @@ AC_DEFUN([CF_UPPER],
 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_UTF8_LIB version: 5 updated: 2008/10/17 19:37:52
+dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
 dnl -----------
 dnl Check for multibyte support, and if not found, utf8 compatibility library
 AC_DEFUN([CF_UTF8_LIB],
@@ -2249,10 +3051,10 @@ AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
 # ncurses/ncursesw:
 if test "$cf_cv_utf8_lib" = "add-on" ; then
-       AC_DEFINE(HAVE_LIBUTF8_H)
+       AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
        CF_ADD_INCDIR($cf_cv_header_path_utf8)
        CF_ADD_LIBDIR($cf_cv_library_path_utf8)
-       LIBS="-lutf8 $LIBS"
+       CF_ADD_LIBS($cf_cv_library_file_utf8)
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -2264,7 +3066,7 @@ AC_DEFUN([CF_VERBOSE],
 CF_MSG_LOG([$1])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WCHAR_TYPE version: 2 updated: 2004/01/17 19:18:20
+dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
 dnl -------------
 dnl Check if type wide-character type $1 is declared, and if so, which header
 dnl file is needed.  The second parameter is used to set a shell variable when
@@ -2296,11 +3098,11 @@ AC_TRY_COMPILE([
        [cf_cv_$1=unknown])])])
 
 if test "$cf_cv_$1" = yes ; then
-       AC_DEFINE(NEED_WCHAR_H)
+       AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
        NEED_WCHAR_H=1
 fi
 
-ifelse($2,,,[
+ifelse([$2],,,[
 # if we do not find $1 in either place, use substitution to provide a fallback.
 if test "$cf_cv_$1" = unknown ; then
        $2=1
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_CURSES_DIR version: 2 updated: 2002/11/10 14:46:59
+dnl CF_WITH_CURSES_DIR version: 3 updated: 2010/11/20 17:02:38
 dnl ------------------
 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
 dnl libraries.
 AC_DEFUN([CF_WITH_CURSES_DIR],[
+
+AC_MSG_CHECKING(for specific curses-directory)
 AC_ARG_WITH(curses-dir,
        [  --with-curses-dir=DIR   directory in which (n)curses is installed],
-       [CF_PATH_SYNTAX(withval)
-        cf_cv_curses_dir=$withval],
+       [cf_cv_curses_dir=$withval],
        [cf_cv_curses_dir=no])
+AC_MSG_RESULT($cf_cv_curses_dir)
+
+if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
+then
+       CF_PATH_SYNTAX(withval)
+       if test -d "$cf_cv_curses_dir"
+       then
+               CF_ADD_INCDIR($cf_cv_curses_dir/include)
+               CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
+       fi
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_CURSES version: 8 updated: 2003/11/07 19:47:46
+dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
+dnl ----------------
+dnl Configure-option for dbmalloc.  The optional parameter is used to override
+dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
+AC_DEFUN([CF_WITH_DBMALLOC],[
+CF_NO_LEAKS_OPTION(dbmalloc,
+       [  --with-dbmalloc         test: use Conor Cahill's dbmalloc library],
+       [USE_DBMALLOC])
+
+if test "$with_dbmalloc" = yes ; then
+       AC_CHECK_HEADER(dbmalloc.h,
+               [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
+dnl ---------------
+dnl Configure-option for dmalloc.  The optional parameter is used to override
+dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
+AC_DEFUN([CF_WITH_DMALLOC],[
+CF_NO_LEAKS_OPTION(dmalloc,
+       [  --with-dmalloc          test: use Gray Watson's dmalloc library],
+       [USE_DMALLOC])
+
+if test "$with_dmalloc" = yes ; then
+       AC_CHECK_HEADER(dmalloc.h,
+               [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
+fi
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_NCURSES_ETC version: 4 updated: 2015/04/25 20:53:11
+dnl -------------------
+dnl Use this macro for programs which use any variant of "curses", e.g.,
+dnl "ncurses", and "PDCurses".  Programs that can use curses and some unrelated
+dnl library (such as slang) should use a "--with-screen=XXX" option.
+dnl
+dnl This does not use AC_DEFUN, because that would tell autoconf to run each
+dnl of the macros inside this one - before this macro.
+define([CF_WITH_NCURSES_ETC],[
+CF_WITH_CURSES_DIR
+
+cf_cv_screen=curses
+
+AC_MSG_CHECKING(for specified curses library type)
+AC_ARG_WITH(screen,
+       [  --with-screen=XXX       use specified curses-libraries],
+       [cf_cv_screen=$withval],[
+
+AC_ARG_WITH(ncursesw,
+       [  --with-ncursesw         use wide ncurses-libraries],
+       [cf_cv_screen=ncursesw],[
+
+AC_ARG_WITH(ncurses,
+       [  --with-ncurses          use ncurses-libraries],
+       [cf_cv_screen=ncurses],[
+
+AC_ARG_WITH(pdcurses,
+       [  --with-pdcurses         compile/link with pdcurses X11 library],
+       [cf_cv_screen=pdcurses],[
+
+AC_ARG_WITH(curses-colr,
+       [  --with-curses-colr      compile/link with HPUX 10.x color-curses],
+       [cf_cv_screen=curses_colr],[
+
+AC_ARG_WITH(curses-5lib,
+       [  --with-curses-5lib      compile/link with SunOS 5lib curses],
+       [cf_cv_screen=curses_5lib])])])])])])
+
+AC_MSG_RESULT($cf_cv_screen)
+
+case $cf_cv_screen in
+(curses|curses_*)
+       CF_CURSES_CONFIG
+       ;;
+(ncursesw*)
+       CF_UTF8_LIB
+       CF_NCURSES_CONFIG($cf_cv_screen)
+       ;;
+(ncurses*)
+       CF_NCURSES_CONFIG($cf_cv_screen)
+       ;;
+(pdcurses)
+       CF_PDCURSES_X11
+       ;;
+(*)
+       AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
+       ;;
+esac
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
+dnl ----------------
+AC_DEFUN([CF_WITH_VALGRIND],[
+CF_NO_LEAKS_OPTION(valgrind,
+       [  --with-valgrind         test: use valgrind],
+       [USE_VALGRIND])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_XOPEN_CURSES version: 11 updated: 2011/01/18 18:15:30
 dnl ---------------
 dnl Test if we should define X/Open source for curses, needed on Digital Unix
 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
@@ -2339,7 +3252,12 @@ AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
 AC_CACHE_CHECK(if we must define _XOPEN_SOURCE_EXTENDED,cf_cv_need_xopen_extension,[
 AC_TRY_LINK([
 #include <stdlib.h>
-#include <${cf_cv_ncurses_header-curses.h}>],[
+#include <${cf_cv_ncurses_header:-curses.h}>],[
+#if defined(NCURSES_VERSION_PATCH)
+#if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
+       make an error
+#endif
+#endif
        long x = winnstr(stdscr, "", 0);
        int x1, y1;
        getbegyx(stdscr, y1, x1)],
@@ -2347,7 +3265,11 @@ AC_TRY_LINK([
        [AC_TRY_LINK([
 #define _XOPEN_SOURCE_EXTENDED
 #include <stdlib.h>
-#include <${cf_cv_ncurses_header-curses.h}>],[
+#include <${cf_cv_ncurses_header:-curses.h}>],[
+#ifdef NCURSES_VERSION
+       cchar_t check;
+       int check2 = curs_set((int)sizeof(check));
+#endif
        long x = winnstr(stdscr, "", 0);
        int x1, y1;
        getbegyx(stdscr, y1, x1)],
@@ -2356,7 +3278,7 @@ AC_TRY_LINK([
 test $cf_cv_need_xopen_extension = yes && CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_SOURCE version: 33 updated: 2010/03/28 15:35:52
+dnl CF_XOPEN_SOURCE version: 49 updated: 2015/04/12 15:39:00
 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,
@@ -2366,22 +3288,27 @@ 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([AC_CANONICAL_HOST])
 
-cf_XOPEN_SOURCE=ifelse($1,,500,$1)
-cf_POSIX_C_SOURCE=ifelse($2,,199506L,$2)
+cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
+cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
 cf_xopen_source=
 
-case $host_os in #(vi
-aix[[456]]*) #(vi
+case $host_os in
+(aix[[4-7]]*)
        cf_xopen_source="-D_ALL_SOURCE"
        ;;
-darwin[[0-8]].*) #(vi
+(cygwin|msys)
+       cf_XOPEN_SOURCE=600
+       ;;
+(darwin[[0-8]].*)
        cf_xopen_source="-D_APPLE_C_SOURCE"
        ;;
-darwin*) #(vi
+(darwin*)
        cf_xopen_source="-D_DARWIN_C_SOURCE"
+       cf_XOPEN_SOURCE=
        ;;
-freebsd*|dragonfly*) #(vi
+(freebsd*|dragonfly*)
        # 5.x headers associate
        #       _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
        #       _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
@@ -2389,83 +3316,103 @@ freebsd*|dragonfly*) #(vi
        cf_XOPEN_SOURCE=600
        cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
        ;;
-hpux11*) #(vi
+(hpux11*)
        cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
        ;;
-hpux*) #(vi
+(hpux*)
        cf_xopen_source="-D_HPUX_SOURCE"
        ;;
-irix[[56]].*) #(vi
+(irix[[56]].*)
        cf_xopen_source="-D_SGI_SOURCE"
+       cf_XOPEN_SOURCE=
        ;;
-linux*|gnu*|mint*|k*bsd*-gnu) #(vi
+(linux*|gnu*|mint*|k*bsd*-gnu)
        CF_GNU_SOURCE
        ;;
-mirbsd*) #(vi
-       # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <arpa/inet.h>
+(minix*)
+       cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
+       ;;
+(mirbsd*)
+       # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
+       cf_XOPEN_SOURCE=
+       CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
+       ;;
+(netbsd*)
+       cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
        ;;
-netbsd*) #(vi
-       # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
+(openbsd[[4-9]]*)
+       # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
+       cf_xopen_source="-D_BSD_SOURCE"
+       cf_XOPEN_SOURCE=600
        ;;
-openbsd*) #(vi
+(openbsd*)
        # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
        ;;
-osf[[45]]*) #(vi
+(osf[[45]]*)
        cf_xopen_source="-D_OSF_SOURCE"
        ;;
-nto-qnx*) #(vi
+(nto-qnx*)
        cf_xopen_source="-D_QNX_SOURCE"
        ;;
-sco*) #(vi
+(sco*)
        # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
        ;;
-solaris2.1[[0-9]]) #(vi
-       cf_xopen_source="-D__EXTENSIONS__ -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
-       ;;
-solaris2.[[1-9]]) #(vi
+(solaris2.*)
        cf_xopen_source="-D__EXTENSIONS__"
+       cf_cv_xopen_source=broken
        ;;
-*)
-       AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
-       AC_TRY_COMPILE([#include <sys/types.h>],[
+(sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
+       cf_XOPEN_SOURCE=
+       cf_POSIX_C_SOURCE=
+       ;;
+(*)
+       CF_TRY_XOPEN_SOURCE
+       CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
+       ;;
+esac
+
+if test -n "$cf_xopen_source" ; then
+       CF_ADD_CFLAGS($cf_xopen_source,true)
+fi
+
+dnl In anything but the default case, we may have system-specific setting
+dnl which is still not guaranteed to provide all of the entrypoints that
+dnl _XOPEN_SOURCE would yield.
+if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
+       AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
+       AC_TRY_COMPILE([#include <stdlib.h>],[
 #ifndef _XOPEN_SOURCE
 make an error
 #endif],
-       [cf_cv_xopen_source=no],
-       [cf_save="$CPPFLAGS"
-        CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
-        AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifdef _XOPEN_SOURCE
+       [cf_XOPEN_SOURCE_set=yes],
+       [cf_XOPEN_SOURCE_set=no])
+       AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
+       if test $cf_XOPEN_SOURCE_set = yes
+       then
+               AC_TRY_COMPILE([#include <stdlib.h>],[
+#if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
 make an error
 #endif],
-       [cf_cv_xopen_source=no],
-       [cf_cv_xopen_source=$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)
-               cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
-               CF_ADD_CFLAGS($cf_temp_xopen_source)
+               [cf_XOPEN_SOURCE_set_ok=yes],
+               [cf_XOPEN_SOURCE_set_ok=no])
+               if test $cf_XOPEN_SOURCE_set_ok = no
+               then
+                       AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
+               fi
+       else
+               CF_TRY_XOPEN_SOURCE
        fi
-       CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
-       ;;
-esac
-
-if test -n "$cf_xopen_source" ; then
-       CF_ADD_CFLAGS($cf_xopen_source)
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_X_ATHENA version: 12 updated: 2004/06/15 21:14:41
+dnl CF_X_ATHENA version: 23 updated: 2015/04/12 15:39:00
 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}
+[
+cf_x_athena=${cf_x_athena:-Xaw}
 
 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
 withval=
@@ -2478,6 +3425,17 @@ else
        AC_MSG_RESULT(no)
 fi
 
+AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
+withval=
+AC_ARG_WITH(Xaw3dxft,
+       [  --with-Xaw3dxft         link with Xaw 3d xft library])
+if test "$withval" = yes ; then
+       cf_x_athena=Xaw3dxft
+       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,
@@ -2500,23 +3458,73 @@ 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)
+if test "$PKG_CONFIG" != none ; then
+       cf_athena_list=
+       test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
+       for cf_athena_pkg in \
+               $cf_athena_list \
+               ${cf_x_athena} \
+               ${cf_x_athena}-devel \
+               lib${cf_x_athena} \
+               lib${cf_x_athena}-devel
+       do
+               CF_TRY_PKG_CONFIG($cf_athena_pkg,[
+                       cf_x_athena_lib="$cf_pkgconfig_libs"
+                       CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
+                       AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
+
+                       CF_TRIM_X_LIBS
+
+AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
+AC_TRY_LINK([
+#include <X11/Xmu/CharSet.h>
+],[
+int check = XmuCompareISOLatin1("big", "small")
+],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
+
+                       if test "$cf_cv_xaw_compat" = no
+                       then
+                               # workaround for broken ".pc" files...
+                               case "$cf_x_athena_lib" in
+                               (*-lXmu*)
+                                       ;;
+                               (*)
+                                       CF_VERBOSE(work around broken package)
+                                       cf_save_xmu="$LIBS"
+                                       cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
+                                       CF_TRY_PKG_CONFIG(xmu,[
+                                                       LIBS="$cf_save_xmu"
+                                                       CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
+                                               ],[
+                                                       CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
+                                               ])
+                                       CF_TRIM_X_LIBS
+                                       ;;
+                               esac
+                       fi
+
+                       break])
+       done
+fi
+
+if test -z "$cf_x_athena_lib" ; then
+       CF_X_EXT
+       CF_X_TOOLKIT
+       CF_X_ATHENA_CPPFLAGS($cf_x_athena)
+       CF_X_ATHENA_LIBS($cf_x_athena)
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_X_ATHENA_CPPFLAGS version: 3 updated: 2009/01/11 15:33:39
+dnl CF_X_ATHENA_CPPFLAGS version: 5 updated: 2010/05/26 17:35:30
 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=""
+cf_x_athena_root=ifelse([$1],,Xaw,[$1])
+cf_x_athena_inc=""
 
 for cf_path in default \
        /usr/contrib/X11R6 \
@@ -2524,7 +3532,7 @@ for cf_path in default \
        /usr/lib/X11R5 \
        /usr/local
 do
-       if test -z "$cf_x_athena_include" ; then
+       if test -z "$cf_x_athena_inc" ; then
                cf_save="$CPPFLAGS"
                cf_test=X11/$cf_x_athena_root/SimpleMenu.h
                if test $cf_path != default ; then
@@ -2540,7 +3548,7 @@ do
                        [cf_result=no])
                AC_MSG_RESULT($cf_result)
                if test "$cf_result" = yes ; then
-                       cf_x_athena_include=$cf_path
+                       cf_x_athena_inc=$cf_path
                        break
                else
                        CPPFLAGS="$cf_save"
@@ -2548,21 +3556,21 @@ do
        fi
 done
 
-if test -z "$cf_x_athena_include" ; then
+if test -z "$cf_x_athena_inc" ; 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$cf_x_athena_include"
+elif test "$cf_x_athena_inc" != default ; then
+       CPPFLAGS="$CPPFLAGS -I$cf_x_athena_inc"
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_X_ATHENA_LIBS version: 7 updated: 2008/03/23 14:46:03
+dnl CF_X_ATHENA_LIBS version: 12 updated: 2011/07/17 19:55:02
 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_root=ifelse([$1],,Xaw,[$1])
 cf_x_athena_lib=""
 
 for cf_path in default \
@@ -2572,31 +3580,42 @@ for cf_path in default \
        /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"
+               ${cf_x_athena_root} \
+               ${cf_x_athena_root}7 \
+               ${cf_x_athena_root}6
+       do
+       for cf_libs in \
+               "-l$cf_lib -lXmu" \
+               "-l$cf_lib -lXpm -lXmu" \
+               "-l${cf_lib}_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 $cf_path)
+                               CF_ADD_LIBS(-L$cf_path/lib $cf_libs)
+                               AC_MSG_CHECKING(for $cf_libs in $cf_path)
                        else
-                               LIBS="$cf_lib $LIBS"
-                               AC_MSG_CHECKING(for $cf_test in $cf_lib)
+                               CF_ADD_LIBS($cf_libs)
+                               AC_MSG_CHECKING(for $cf_test in $cf_libs)
                        fi
-                       AC_TRY_LINK([],[$cf_test()],
+                       AC_TRY_LINK([
+#include <X11/Intrinsic.h>
+#include <X11/$cf_x_athena_root/SimpleMenu.h>
+],[
+$cf_test((XtAppContext) 0)],
                                [cf_result=yes],
                                [cf_result=no])
                        AC_MSG_RESULT($cf_result)
                        if test "$cf_result" = yes ; then
-                               cf_x_athena_lib="$cf_lib"
+                               cf_x_athena_lib="$cf_libs"
                                break
                        fi
                        LIBS="$cf_save"
                fi
-       done
+       done # cf_libs
+               test -n "$cf_x_athena_lib" && break
+       done # cf_lib
 done
 
 if test -z "$cf_x_athena_lib" ; then
@@ -2608,33 +3627,106 @@ CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_X_TOOLKIT version: 12 updated: 2008/03/23 15:04:54
+dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
+dnl --------
+AC_DEFUN([CF_X_EXT],[
+CF_TRY_PKG_CONFIG(Xext,,[
+       AC_CHECK_LIB(Xext,XextCreateExtension,
+               [CF_ADD_LIB(Xext)])])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_X_TOOLKIT version: 23 updated: 2015/04/12 15:39:00
 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 "$cf_cv_system_name"|tr ' ' -`
+# OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new), and (and
+# in some cases has installed dummy files in the former, other cases replaced
+# it with a link to the new location).  This complicates the configure script.
+# Check for that pitfall, and recover using pkg-config
+#
+# If none of these are set, the configuration is almost certainly broken.
+if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
+then
+       CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
+       CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
+       CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
+       CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
+fi
 
 cf_have_X_LIBS=no
 
-LDFLAGS="$X_LIBS $LDFLAGS"
-CF_CHECK_CFLAGS($X_CFLAGS)
+CF_TRY_PKG_CONFIG(xt,[
 
-AC_CHECK_FUNC(XOpenDisplay,,[
-AC_CHECK_LIB(X11,XOpenDisplay,
-       [LIBS="-lX11 $LIBS"],,
-       [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])])
+       case "x$LIBS" in
+       (*-lX11*)
+               ;;
+       (*)
+# we have an "xt" package, but it may omit Xt's dependency on X11
+AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
+AC_TRY_LINK([
+#include <X11/Xlib.h>
+],[
+       int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
+       int rc2 = XClearWindow((Display*) 0, (Window) 0);
+       int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
+       int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
+],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
+               if test "$cf_cv_xt_x11_compat" = no
+               then
+                       CF_VERBOSE(work around broken X11 dependency)
+                       # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
+                       CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
+               fi
+               ;;
+       esac
+
+AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
+AC_TRY_LINK([
+#include <X11/Shell.h>
+],[int num = IceConnectionNumber(0)
+],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
+
+       if test "$cf_cv_xt_ice_compat" = no
+       then
+               # workaround for broken ".pc" files used for X Toolkit.
+               case "x$X_PRE_LIBS" in
+               (*-lICE*)
+                       case "x$LIBS" in
+                       (*-lICE*)
+                               ;;
+                       (*)
+                               CF_VERBOSE(work around broken ICE dependency)
+                               CF_TRY_PKG_CONFIG(ice,
+                                       [CF_TRY_PKG_CONFIG(sm)],
+                                       [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
+                               ;;
+                       esac
+                       ;;
+               esac
+       fi
 
-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 $X_EXTRA_LIBS])])
+       cf_have_X_LIBS=yes
+],[
+
+       LDFLAGS="$X_LIBS $LDFLAGS"
+       CF_CHECK_CFLAGS($X_CFLAGS)
+
+       AC_CHECK_FUNC(XOpenDisplay,,[
+       AC_CHECK_LIB(X11,XOpenDisplay,
+               [CF_ADD_LIB(X11)],,
+               [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])])
+
+       AC_CHECK_FUNC(XtAppInitialize,,[
+       AC_CHECK_LIB(Xt, XtAppInitialize,
+               [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
+                cf_have_X_LIBS=Xt
+                LIBS="-lXt $X_PRE_LIBS $LIBS $X_EXTRA_LIBS"],,
+               [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])])
+])
 
 if test $cf_have_X_LIBS = no ; then
        AC_MSG_WARN(
@@ -2644,7 +3736,7 @@ to makefile.])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF__CURSES_HEAD version: 1 updated: 2009/07/16 19:32:31
+dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
 dnl ---------------
 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
 dnl are both available.
@@ -2653,7 +3745,7 @@ define([CF__CURSES_HEAD],[
 #include <xcurses.h>
 char * XCursesProgramName = "test";
 #else
-#include <${cf_cv_ncurses_header-curses.h}>
+#include <${cf_cv_ncurses_header:-curses.h}>
 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
 #include <ncursesw/term.h>
 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)