--- a/src/modules/rlm_krb5/configure
+++ b/src/modules/rlm_krb5/configure
@@ -1,10 +1,11 @@
 #! /bin/sh
 # From configure.ac Revision.
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69.
+# Generated by GNU Autoconf 2.71.
 #
 #
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -15,14 +16,16 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
+else $as_nop
   case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
@@ -32,46 +35,46 @@ esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
 
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -80,13 +83,6 @@ if test "${PATH_SEPARATOR+set}" != set;
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -95,8 +91,12 @@ case $0 in #((
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
@@ -108,30 +108,10 @@ if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 # Use a proper internal environment variable to ensure we don't fall
   # into an infinite loop, continuously re-executing ourselves.
@@ -153,20 +133,22 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  as_bourne_compatible="as_nop=:
+if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else
+else \$as_nop
   case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
@@ -186,41 +168,52 @@ as_fn_success || { exitcode=1; echo as_f
 as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
 as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
 as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
 
-else
+else \$as_nop
   exitcode=1; echo positional parameters were not saved.
 fi
 test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
 test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
   test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
+  if (eval "$as_required") 2>/dev/null
+then :
   as_have_required=yes
-else
+else $as_nop
   as_have_required=no
 fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
 
-else
+else $as_nop
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
   as_found=:
   case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
 	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
+	     as_shell=$as_dir$as_base
 	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
   CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
   break 2
 fi
 fi
@@ -228,14 +221,21 @@ fi
        esac
   as_found=false
 done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
 IFS=$as_save_IFS
+if $as_found
+then :
 
+else $as_nop
+  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi
+fi
 
-      if test "x$CONFIG_SHELL" != x; then :
+
+      if test "x$CONFIG_SHELL" != x
+then :
   export CONFIG_SHELL
              # We cannot yet assume a decent shell, so we have to provide a
 # neutralization value for shells without unset; and this also
@@ -253,18 +253,19 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
 
-    if test x$as_have_required = xno; then :
-  $as_echo "$0: This script requires a shell more modern than all"
-  $as_echo "$0: the shells that I found on your system."
-  if test x${ZSH_VERSION+set} = xset ; then
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+    if test x$as_have_required = xno
+then :
+  printf "%s\n" "$0: This script requires a shell more modern than all"
+  printf "%s\n" "$0: the shells that I found on your system."
+  if test ${ZSH_VERSION+y} ; then
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
   else
-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
@@ -291,6 +292,7 @@ as_fn_unset ()
 }
 as_unset=as_fn_unset
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -308,6 +310,14 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -322,7 +332,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -331,7 +341,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -370,12 +380,13 @@ as_fn_executable_p ()
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
+else $as_nop
   as_fn_append ()
   {
     eval $1=\$$1\$2
@@ -387,18 +398,27 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
+else $as_nop
   as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
   }
 fi # as_fn_arith
 
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -410,9 +430,9 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -439,7 +459,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -483,7 +503,7 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -497,6 +517,10 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   exit
 }
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -510,6 +534,13 @@ case `echo -n x` in #(((((
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -575,12 +606,12 @@ MFLAGS=
 MAKEFLAGS=
 
 # Identity of this package.
-PACKAGE_NAME=
-PACKAGE_TARNAME=
-PACKAGE_VERSION=
-PACKAGE_STRING=
-PACKAGE_BUGREPORT=
-PACKAGE_URL=
+PACKAGE_NAME=''
+PACKAGE_TARNAME=''
+PACKAGE_VERSION=''
+PACKAGE_STRING=''
+PACKAGE_BUGREPORT=''
+PACKAGE_URL=''
 
 ac_unique_file="rlm_krb5.c"
 ac_subst_vars='LTLIBOBJS
@@ -719,8 +750,6 @@ do
   *)    ac_optarg=yes ;;
   esac
 
-  # Accept the important Cygnus configure options, so we can diagnose typos.
-
   case $ac_dashdash$ac_option in
   --)
     ac_dashdash=yes ;;
@@ -761,9 +790,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -787,9 +816,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "enable_$ac_useropt"
@@ -1000,9 +1029,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1016,9 +1045,9 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
     ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
       *"
 "with_$ac_useropt"
@@ -1062,9 +1091,9 @@ Try \`$0 --help' for more information"
 
   *)
     # FIXME: should be removed in autoconf 3.0.
-    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
@@ -1080,7 +1109,7 @@ if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1144,7 +1173,7 @@ $as_expr X"$as_myself" : 'X\(.*[^/]\)//*
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_myself" |
+printf "%s\n" X"$as_myself" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1269,7 +1298,7 @@ Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --without-rlm_krb5      build without Kerberos support
-  --with-rlm-krb5-dir=DIR Directory for krb5 files
+  --with-rlm-krb5-dir=DIR directory where krb5 files are installed
 
 Some influential environment variables:
   CC          C compiler command
@@ -1300,9 +1329,9 @@ if test "$ac_init_help" = "recursive"; t
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1330,7 +1359,8 @@ esac
 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 
     cd "$ac_dir" || { ac_status=$?; continue; }
-    # Check for guested configure.
+    # Check for configure.gnu first; this name is used for a wrapper for
+    # Metaconfig's "Configure" on case-insensitive file systems.
     if test -f "$ac_srcdir/configure.gnu"; then
       echo &&
       $SHELL "$ac_srcdir/configure.gnu" --help=recursive
@@ -1338,7 +1368,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_
       echo &&
       $SHELL "$ac_srcdir/configure" --help=recursive
     else
-      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
     fi || ac_status=$?
     cd "$ac_pwd" || { ac_status=$?; break; }
   done
@@ -1348,9 +1378,9 @@ test -n "$ac_init_help" && exit $ac_stat
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.69
+generated by GNU Autoconf 2.71
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1372,14 +1402,14 @@ echo
 ac_fn_c_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
+  rm -f conftest.$ac_objext conftest.beam
   if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1387,14 +1417,15 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
+       } && test -s conftest.$ac_objext
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
@@ -1416,7 +1447,7 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1424,14 +1455,15 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } > conftest.i && {
 	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
     ac_retval=1
@@ -1447,14 +1479,14 @@ fi
 ac_fn_c_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
   if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -1462,17 +1494,18 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
     mv -f conftest.er1 conftest.err
   fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
 	 test -x conftest$ac_exeext
-       }; then :
+       }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
@@ -1493,11 +1526,12 @@ fi
 ac_fn_c_check_func ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if eval \${$3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+printf %s "checking for $2... " >&6; }
+if eval test \${$3+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
@@ -1505,16 +1539,9 @@ else
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $2 (); below.
-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+   which can conflict with char $2 (); below.  */
 
+#include <limits.h>
 #undef $2
 
 /* Override any GCC internal prototype to avoid an error.
@@ -1532,32 +1559,33 @@ choke me
 #endif
 
 int
-main ()
+main (void)
 {
 return $2 ();
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
   eval "$3=yes"
-else
+else $as_nop
   eval "$3=no"
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
 fi
 eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
 
 # ac_fn_c_try_run LINENO
 # ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
+# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
+# executables *can* be run.
 ac_fn_c_try_run ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
@@ -1567,25 +1595,26 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
   { { case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+then :
   ac_retval=0
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-       $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+       printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
        ac_retval=$ac_status
@@ -1595,14 +1624,34 @@ fi
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_run
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
+
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
 
-  $ $0 $@
+  $ $0$ac_configure_args_raw
 
 _ACEOF
 exec 5>>config.log
@@ -1635,8 +1684,12 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    $as_echo "PATH: $as_dir"
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
   done
 IFS=$as_save_IFS
 
@@ -1671,7 +1724,7 @@ do
     | -silent | --silent | --silen | --sile | --sil)
       continue ;;
     *\'*)
-      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -1706,11 +1759,13 @@ done
 # WARNING: Use '\'' to represent an apostrophe within the trap.
 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
 trap 'exit_status=$?
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
   # Save into config.log some information that might help in debugging.
   {
     echo
 
-    $as_echo "## ---------------- ##
+    printf "%s\n" "## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##"
     echo
@@ -1721,8 +1776,8 @@ trap 'exit_status=$?
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -1746,7 +1801,7 @@ $as_echo "$as_me: WARNING: cache variabl
 )
     echo
 
-    $as_echo "## ----------------- ##
+    printf "%s\n" "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
     echo
@@ -1754,14 +1809,14 @@ $as_echo "$as_me: WARNING: cache variabl
     do
       eval ac_val=\$$ac_var
       case $ac_val in
-      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
       esac
-      $as_echo "$ac_var='\''$ac_val'\''"
+      printf "%s\n" "$ac_var='\''$ac_val'\''"
     done | sort
     echo
 
     if test -n "$ac_subst_files"; then
-      $as_echo "## ------------------- ##
+      printf "%s\n" "## ------------------- ##
 ## File substitutions. ##
 ## ------------------- ##"
       echo
@@ -1769,15 +1824,15 @@ $as_echo "$as_me: WARNING: cache variabl
       do
 	eval ac_val=\$$ac_var
 	case $ac_val in
-	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 	esac
-	$as_echo "$ac_var='\''$ac_val'\''"
+	printf "%s\n" "$ac_var='\''$ac_val'\''"
       done | sort
       echo
     fi
 
     if test -s confdefs.h; then
-      $as_echo "## ----------- ##
+      printf "%s\n" "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
       echo
@@ -1785,8 +1840,8 @@ $as_echo "$as_me: WARNING: cache variabl
       echo
     fi
     test "$ac_signal" != 0 &&
-      $as_echo "$as_me: caught signal $ac_signal"
-    $as_echo "$as_me: exit $exit_status"
+      printf "%s\n" "$as_me: caught signal $ac_signal"
+    printf "%s\n" "$as_me: exit $exit_status"
   } >&5
   rm -f core *.core core.conftest.* &&
     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
@@ -1800,63 +1855,48 @@ ac_signal=0
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
-$as_echo "/* confdefs.h */" > confdefs.h
+printf "%s\n" "/* confdefs.h */" > confdefs.h
 
 # Predefined preprocessor variables.
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_NAME "$PACKAGE_NAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
-_ACEOF
+printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_VERSION "$PACKAGE_VERSION"
-_ACEOF
+printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_STRING "$PACKAGE_STRING"
-_ACEOF
+printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
-_ACEOF
+printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
 
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE_URL "$PACKAGE_URL"
-_ACEOF
+printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
 
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
-ac_site_file1=NONE
-ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  # We do not want a PATH search for config.site.
-  case $CONFIG_SITE in #((
-    -*)  ac_site_file1=./$CONFIG_SITE;;
-    */*) ac_site_file1=$CONFIG_SITE;;
-    *)   ac_site_file1=./$CONFIG_SITE;;
-  esac
+  ac_site_files="$CONFIG_SITE"
 elif test "x$prefix" != xNONE; then
-  ac_site_file1=$prefix/share/config.site
-  ac_site_file2=$prefix/etc/config.site
+  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
 else
-  ac_site_file1=$ac_default_prefix/share/config.site
-  ac_site_file2=$ac_default_prefix/etc/config.site
+  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
 fi
-for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+
+for ac_site_file in $ac_site_files
 do
-  test "x$ac_site_file" = xNONE && continue
-  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
-$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+  case $ac_site_file in #(
+  */*) :
+     ;; #(
+  *) :
+    ac_site_file=./$ac_site_file ;;
+esac
+  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
 See \`config.log' for more details" "$LINENO" 5; }
   fi
@@ -1866,19 +1906,327 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special files
   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-$as_echo "$as_me: loading cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
       *)                      . "./$cache_file";;
     esac
   fi
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-$as_echo "$as_me: creating cache $cache_file" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
 
+# Test code for whether the C compiler supports C89 (global declarations)
+ac_c_conftest_c89_globals='
+/* Does the compiler advertise C89 conformance?
+   Do not test the value of __STDC__, because some compilers set it to 0
+   while being otherwise adequately conformant. */
+#if !defined __STDC__
+# error "Compiler does not advertise C89 conformance"
+#endif
+
+#include <stddef.h>
+#include <stdarg.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
+struct buf { int x; };
+struct buf * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not \xHH hex character constants.
+   These do not provoke an error unfortunately, instead are silently treated
+   as an "x".  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
+   array size at least.  It is necessary to write \x00 == 0 to get something
+   that is true only with -std.  */
+int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) '\''x'\''
+int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
+               int, int);'
+
+# Test code for whether the C compiler supports C89 (body of main).
+ac_c_conftest_c89_main='
+ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
+'
+
+# Test code for whether the C compiler supports C99 (global declarations)
+ac_c_conftest_c99_globals='
+// Does the compiler advertise C99 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
+# error "Compiler does not advertise C99 conformance"
+#endif
+
+#include <stdbool.h>
+extern int puts (const char *);
+extern int printf (const char *, ...);
+extern int dprintf (int, const char *, ...);
+extern void *malloc (size_t);
+
+// Check varargs macros.  These examples are taken from C99 6.10.3.5.
+// dprintf is used instead of fprintf to avoid needing to declare
+// FILE and stderr.
+#define debug(...) dprintf (2, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+  int x = 1234;
+  int y = 5678;
+  debug ("Flag");
+  debug ("X = %d\n", x);
+  showlist (The first, second, and third items.);
+  report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+  #error "your preprocessor is broken"
+#endif
+#if BIG_OK
+#else
+  #error "your preprocessor is broken"
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+  int datasize;
+  double data[];
+};
+
+struct named_init {
+  int number;
+  const wchar_t *name;
+  double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+  // See if C++-style comments work.
+  // Iterate through items via the restricted pointer.
+  // Also check for declarations in for loops.
+  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
+    continue;
+  return 0;
+}
+
+// Check varargs and va_copy.
+static bool
+test_varargs (const char *format, ...)
+{
+  va_list args;
+  va_start (args, format);
+  va_list args_copy;
+  va_copy (args_copy, args);
+
+  const char *str = "";
+  int number = 0;
+  float fnumber = 0;
+
+  while (*format)
+    {
+      switch (*format++)
+	{
+	case '\''s'\'': // string
+	  str = va_arg (args_copy, const char *);
+	  break;
+	case '\''d'\'': // int
+	  number = va_arg (args_copy, int);
+	  break;
+	case '\''f'\'': // float
+	  fnumber = va_arg (args_copy, double);
+	  break;
+	default:
+	  break;
+	}
+    }
+  va_end (args_copy);
+  va_end (args);
+
+  return *str && number && fnumber;
+}
+'
+
+# Test code for whether the C compiler supports C99 (body of main).
+ac_c_conftest_c99_main='
+  // Check bool.
+  _Bool success = false;
+  success |= (argc != 0);
+
+  // Check restrict.
+  if (test_restrict ("String literal") == 0)
+    success = true;
+  char *restrict newvar = "Another string";
+
+  // Check varargs.
+  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
+  test_varargs_macros ();
+
+  // Check flexible array members.
+  struct incomplete_array *ia =
+    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  ia->datasize = 10;
+  for (int i = 0; i < ia->datasize; ++i)
+    ia->data[i] = i * 1.234;
+
+  // Check named initializers.
+  struct named_init ni = {
+    .number = 34,
+    .name = L"Test wide string",
+    .average = 543.34343,
+  };
+
+  ni.number = 58;
+
+  int dynamic_array[ni.number];
+  dynamic_array[0] = argv[0][0];
+  dynamic_array[ni.number - 1] = 543;
+
+  // work around unused variable warnings
+  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
+	 || dynamic_array[ni.number - 1] != 543);
+'
+
+# Test code for whether the C compiler supports C11 (global declarations)
+ac_c_conftest_c11_globals='
+// Does the compiler advertise C11 conformance?
+#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
+# error "Compiler does not advertise C11 conformance"
+#endif
+
+// Check _Alignas.
+char _Alignas (double) aligned_as_double;
+char _Alignas (0) no_special_alignment;
+extern char aligned_as_int;
+char _Alignas (0) _Alignas (int) aligned_as_int;
+
+// Check _Alignof.
+enum
+{
+  int_alignment = _Alignof (int),
+  int_array_alignment = _Alignof (int[100]),
+  char_alignment = _Alignof (char)
+};
+_Static_assert (0 < -_Alignof (int), "_Alignof is signed");
+
+// Check _Noreturn.
+int _Noreturn does_not_return (void) { for (;;) continue; }
+
+// Check _Static_assert.
+struct test_static_assert
+{
+  int x;
+  _Static_assert (sizeof (int) <= sizeof (long int),
+                  "_Static_assert does not work in struct");
+  long int y;
+};
+
+// Check UTF-8 literals.
+#define u8 syntax error!
+char const utf8_literal[] = u8"happens to be ASCII" "another string";
+
+// Check duplicate typedefs.
+typedef long *long_ptr;
+typedef long int *long_ptr;
+typedef long_ptr long_ptr;
+
+// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
+struct anonymous
+{
+  union {
+    struct { int i; int j; };
+    struct { int k; long int l; } w;
+  };
+  int m;
+} v1;
+'
+
+# Test code for whether the C compiler supports C11 (body of main).
+ac_c_conftest_c11_main='
+  _Static_assert ((offsetof (struct anonymous, i)
+		   == offsetof (struct anonymous, w.k)),
+		  "Anonymous union alignment botch");
+  v1.i = 2;
+  v1.w.k = 5;
+  ok |= v1.i != 5;
+'
+
+# Test code for whether the C compiler supports C11 (complete).
+ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+${ac_c_conftest_c11_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  ${ac_c_conftest_c11_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C99 (complete).
+ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
+${ac_c_conftest_c99_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  ${ac_c_conftest_c99_main}
+  return ok;
+}
+"
+
+# Test code for whether the C compiler supports C89 (complete).
+ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
+
+int
+main (int argc, char **argv)
+{
+  int ok = 0;
+  ${ac_c_conftest_c89_main}
+  return ok;
+}
+"
+
 # Check that the precious variables saved in the cache have kept the same
 # value.
 ac_cache_corrupted=false
@@ -1889,12 +2237,12 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -1903,24 +2251,24 @@ $as_echo "$as_me: error: \`$ac_var' was
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
   if test "$ac_new_set" = set; then
     case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
     *) ac_arg=$ac_var=$ac_new_val ;;
     esac
     case " $ac_configure_args " in
@@ -1930,11 +2278,12 @@ $as_echo "$as_me:   current value: \`$ac
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -1955,7 +2304,8 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 # Check whether --with-rlm_krb5 was given.
-if test "${with_rlm_krb5+set}" = set; then :
+if test ${with_rlm_krb5+y}
+then :
   withval=$with_rlm_krb5;
 fi
 
@@ -1973,6 +2323,15 @@ fr_features=
 if test x"$with_rlm_krb5" != xno; then
 
 
+
+
+
+
+
+
+
+
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -1981,11 +2340,12 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -1993,11 +2353,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2008,11 +2372,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2021,11 +2385,12 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
@@ -2033,11 +2398,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2048,11 +2417,11 @@ fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
   if test "x$ac_ct_CC" = x; then
@@ -2060,8 +2429,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2074,11 +2443,12 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2086,11 +2456,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2101,11 +2475,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2114,11 +2488,12 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2127,15 +2502,19 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2151,18 +2530,18 @@ if test $ac_prog_rejected = yes; then
     # However, it has the same basename, so the bogon will be chosen
     # first if we set CC to just the basename; use the full file name.
     shift
-    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+    ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2173,11 +2552,12 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
@@ -2185,11 +2565,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2200,11 +2584,11 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
-$as_echo "$CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2217,11 +2601,12 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_CC+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
@@ -2229,11 +2614,15 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2244,11 +2633,11 @@ fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
-$as_echo "$ac_ct_CC" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
@@ -2260,34 +2649,138 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
+set dummy ${ac_tool_prefix}clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+printf "%s\n" "$CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "clang", so it can be a program name with args.
+set dummy clang; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_CC+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="clang"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+printf "%s\n" "$ac_ct_CC" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
   fi
+else
+  CC="$ac_cv_prog_CC"
 fi
 
 fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
 See \`config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-for ac_option in --version -v -V -qversion; do
+for ac_option in --version -v -V -qversion -version; do
   { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
@@ -2297,7 +2790,7 @@ $as_echo "$ac_try_echo"; } >&5
     cat conftest.er1 >&5
   fi
   rm -f conftest.er1 conftest.err
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 done
 
@@ -2305,7 +2798,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -2317,9 +2810,9 @@ ac_clean_files="$ac_clean_files a.out a.
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+printf %s "checking whether the C compiler works... " >&6; }
+ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
@@ -2340,11 +2833,12 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
@@ -2361,7 +2855,7 @@ do
 	# certainly right.
 	break;;
     *.* )
-	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
@@ -2377,44 +2871,46 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else
+else $as_nop
   ac_file=''
 fi
-if test -z "$ac_file"; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-$as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
 See \`config.log' for more details" "$LINENO" 5; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+printf %s "checking for C compiler default output file name... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+printf "%s\n" "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
-$as_echo_n "checking for suffix of executables... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+printf %s "checking for suffix of executables... " >&6; }
 if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
@@ -2428,15 +2924,15 @@ for ac_file in conftest.exe conftest con
     * ) break;;
   esac
 done
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
 See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest conftest$ac_cv_exeext
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
-$as_echo "$ac_cv_exeext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+printf "%s\n" "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
@@ -2445,7 +2941,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
 /* end confdefs.h.  */
 #include <stdio.h>
 int
-main ()
+main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
  return ferror (f) || fclose (f) != 0;
@@ -2457,8 +2953,8 @@ _ACEOF
 ac_clean_files="$ac_clean_files conftest.out"
 # Check that the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+printf %s "checking whether we are cross compiling... " >&6; }
 if test "$cross_compiling" != yes; then
   { { ac_try="$ac_link"
 case "(($ac_try" in
@@ -2466,10 +2962,10 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
   if { ac_try='./conftest$ac_cv_exeext'
   { { case "(($ac_try" in
@@ -2477,39 +2973,40 @@ $as_echo "$ac_try_echo"; } >&5
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_try") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run C compiled programs.
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot run C compiled programs.
 If you meant to cross compile, use \`--host'.
 See \`config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+printf "%s\n" "$cross_compiling" >&6; }
 
 rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
 ac_clean_files=$ac_clean_files_save
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
-$as_echo_n "checking for suffix of object files... " >&6; }
-if ${ac_cv_objext+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+printf %s "checking for suffix of object files... " >&6; }
+if test ${ac_cv_objext+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -2523,11 +3020,12 @@ case "(($ac_try" in
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
+printf "%s\n" "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then :
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -2536,31 +3034,32 @@ $as_echo "$ac_try_echo"; } >&5
        break;;
   esac
 done
-else
-  $as_echo "$as_me: failed program was:" >&5
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
 See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
-$as_echo "$ac_cv_objext" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+printf "%s\n" "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
-$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if ${ac_cv_c_compiler_gnu+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
+printf %s "checking whether the compiler supports GNU C... " >&6; }
+if test ${ac_cv_c_compiler_gnu+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -2570,29 +3069,33 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_compiler_gnu=yes
-else
+else $as_nop
   ac_compiler_gnu=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
-$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 if test $ac_compiler_gnu = yes; then
   GCC=yes
 else
   GCC=
 fi
-ac_test_CFLAGS=${CFLAGS+set}
+ac_test_CFLAGS=${CFLAGS+y}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
-$as_echo_n "checking whether $CC accepts -g... " >&6; }
-if ${ac_cv_prog_cc_g+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+printf %s "checking whether $CC accepts -g... " >&6; }
+if test ${ac_cv_prog_cc_g+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
@@ -2601,57 +3104,60 @@ else
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
-else
+else $as_nop
   CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-else
+else $as_nop
   ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
-main ()
+main (void)
 {
 
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
-$as_echo "$ac_cv_prog_cc_g" >&6; }
-if test "$ac_test_CFLAGS" = set; then
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
+if test $ac_test_CFLAGS; then
   CFLAGS=$ac_save_CFLAGS
 elif test $ac_cv_prog_cc_g = yes; then
   if test "$GCC" = yes; then
@@ -2666,94 +3172,144 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
-$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if ${ac_cv_prog_cc_c89+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_cv_prog_cc_c89=no
+ac_prog_cc_stdc=no
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
+printf %s "checking for $CC option to enable C11 features... " >&6; }
+if test ${ac_cv_prog_cc_c11+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#include <stdarg.h>
-#include <stdio.h>
-struct stat;
-/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
-struct buf { int x; };
-FILE * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
-{
-  return p[i];
-}
-static char *f (char * (*g) (char **, int), char **p, ...)
-{
-  char *s;
-  va_list v;
-  va_start (v,p);
-  s = g (p, va_arg (v,int));
-  va_end (v);
-  return s;
-}
-
-/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
-   function prototypes and stuff, but not '\xHH' hex character constants.
-   These don't provoke an error unfortunately, instead are silently treated
-   as 'x'.  The following induces an error, until -std is added to get
-   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
-   array size at least.  It's necessary to write '\x00'==0 to get something
-   that's true only with -std.  */
-int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+$ac_c_conftest_c11_program
+_ACEOF
+for ac_arg in '' -std=gnu11
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c11=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c11" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
 
-/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
-   inside strings and character constants.  */
-#define FOO(x) 'x'
-int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+if test "x$ac_cv_prog_cc_c11" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c11" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
+     CC="$CC $ac_cv_prog_cc_c11"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
+  ac_prog_cc_stdc=c11
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
+printf %s "checking for $CC option to enable C99 features... " >&6; }
+if test ${ac_cv_prog_cc_c99+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c99_program
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"
+then :
+  ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+fi
 
-int test (int i, double x);
-struct s1 {int (*f) (int a);};
-struct s2 {int (*f) (double a);};
-int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
-int argc;
-char **argv;
-int
-main ()
-{
-return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
-  ;
-  return 0;
-}
+if test "x$ac_cv_prog_cc_c99" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c99" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
+     CC="$CC $ac_cv_prog_cc_c99"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+  ac_prog_cc_stdc=c99
+fi
+fi
+if test x$ac_prog_cc_stdc = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
+printf %s "checking for $CC option to enable C89 features... " >&6; }
+if test ${ac_cv_prog_cc_c89+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_c_conftest_c89_program
 _ACEOF
-for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
-	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  if ac_fn_c_try_compile "$LINENO"; then :
+  if ac_fn_c_try_compile "$LINENO"
+then :
   ac_cv_prog_cc_c89=$ac_arg
 fi
-rm -f core conftest.err conftest.$ac_objext
+rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
 CC=$ac_save_CC
-
 fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c89" in
-  x)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
-  *)
-    CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
-$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
-esac
-if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+if test "x$ac_cv_prog_cc_c89" = xno
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+printf "%s\n" "unsupported" >&6; }
+else $as_nop
+  if test "x$ac_cv_prog_cc_c89" = x
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+printf "%s\n" "none needed" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
+     CC="$CC $ac_cv_prog_cc_c89"
+fi
+  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+  ac_prog_cc_stdc=c89
+fi
 fi
 
 ac_ext=c
@@ -2767,40 +3323,36 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+printf %s "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
 fi
 if test -z "$CPP"; then
-  if ${ac_cv_prog_CPP+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+  if test ${ac_cv_prog_CPP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+      # Double quotes because $CC needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
     do
       ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+#include <limits.h>
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
 
-else
+else $as_nop
   # Broken: fails on valid input.
 continue
 fi
@@ -2812,10 +3364,11 @@ rm -f conftest.err conftest.i conftest.$
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
   # Broken: success on invalid input.
 continue
-else
+else $as_nop
   # Passes both tests.
 ac_preproc_ok=:
 break
@@ -2825,7 +3378,8 @@ rm -f conftest.err conftest.i conftest.$
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
+if $ac_preproc_ok
+then :
   break
 fi
 
@@ -2837,29 +3391,24 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+printf "%s\n" "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
-  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-  # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
+#include <limits.h>
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
 
-else
+else $as_nop
   # Broken: fails on valid input.
 continue
 fi
@@ -2871,10 +3420,11 @@ rm -f conftest.err conftest.i conftest.$
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_c_try_cpp "$LINENO"
+then :
   # Broken: success on invalid input.
 continue
-else
+else $as_nop
   # Passes both tests.
 ac_preproc_ok=:
 break
@@ -2884,11 +3434,12 @@ rm -f conftest.err conftest.i conftest.$
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then :
+if $ac_preproc_ok
+then :
 
-else
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+else $as_nop
+  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
 See \`config.log' for more details" "$LINENO" 5; }
 fi
@@ -2903,8 +3454,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 rlm_krb5_dir=
 
 # Check whether --with-rlm-krb5-dir was given.
-if test "${with_rlm_krb5_dir+set}" = set; then :
-  withval=$with_rlm_krb5_dir;  case "$withval" in
+if test ${with_rlm_krb5_dir+y}
+then :
+  withval=$with_rlm_krb5_dir; case "$withval" in
 	no)
 		as_fn_error $? "Need rlm-krb5-dir" "$LINENO" 5
 		;;
@@ -2919,11 +3471,12 @@ fi
 
 # Extract the first word of "krb5-config", so it can be a program name with args.
 set dummy krb5-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_krb5_config+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_krb5_config+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   case $krb5_config in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_krb5_config="$krb5_config" # Let the user override the test with a path.
@@ -2934,11 +3487,15 @@ as_dummy="${rlm_krb5_dir}/bin:${PATH}:/u
 for as_dir in $as_dummy
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_krb5_config="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_krb5_config="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -2951,78 +3508,55 @@ esac
 fi
 krb5_config=$ac_cv_path_krb5_config
 if test -n "$krb5_config"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $krb5_config" >&5
-$as_echo "$krb5_config" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $krb5_config" >&5
+printf "%s\n" "$krb5_config" >&6; }
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
 
-
 if test "$krb5_config" != 'not-found'; then
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking krb5-config CFLAGS" >&5
-$as_echo_n "checking krb5-config CFLAGS... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking krb5-config CFLAGS" >&5
+printf %s "checking krb5-config CFLAGS... " >&6; }
 	SMART_CPPFLAGS=$($krb5_config --cflags)
 	SMART_CPPFLAGS=$(echo "$SMART_CPPFLAGS" | sed 's/-I[ ]*/-isystem /g')
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: \"$SMART_CPPFLAGS\"" >&5
-$as_echo "\"$SMART_CPPFLAGS\"" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: \"$SMART_CPPFLAGS\"" >&5
+printf "%s\n" "\"$SMART_CPPFLAGS\"" >&6; }
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking krb5-config LDFLAGS" >&5
-$as_echo_n "checking krb5-config LDFLAGS... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking krb5-config LDFLAGS" >&5
+printf %s "checking krb5-config LDFLAGS... " >&6; }
 	SMART_LIBS=$($krb5_config --libs)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${SMART_LIBS}" >&5
-$as_echo "${SMART_LIBS}" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${SMART_LIBS}" >&5
+printf "%s\n" "${SMART_LIBS}" >&6; }
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking krb5-config reported version" >&5
-$as_echo_n "checking krb5-config reported version... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking krb5-config reported version" >&5
+printf %s "checking krb5-config reported version... " >&6; }
 	krb5_version_raw=$($krb5_config --version)
 
 		krb5_version=$(echo "$krb5_version_raw" | head -n 1 | \
-		awk '{split($(4),v,"."); if (v["3"] = "") v["3"] = "0"; print v["1"]v["2"]v["3"] }')
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${krb5_version_raw} ($krb5_version)" >&5
-$as_echo "${krb5_version_raw} ($krb5_version)" >&6; }
+		awk '{split($(4),v,"."); if (v["3"] == "") v["3"] = "0"; print v["1"]v["2"]v["3"] }')
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${krb5_version_raw} ($krb5_version)" >&5
+printf "%s\n" "${krb5_version_raw} ($krb5_version)" >&6; }
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking krb5-config reported vendor" >&5
-$as_echo_n "checking krb5-config reported vendor... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking krb5-config reported vendor" >&5
+printf %s "checking krb5-config reported vendor... " >&6; }
 	krb5_vendor=$($krb5_config --vendor)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${krb5_vendor}" >&5
-$as_echo "${krb5_vendor}" >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${krb5_vendor}" >&5
+printf "%s\n" "${krb5_vendor}" >&6; }
 
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking canonical API type" >&5
-$as_echo_n "checking canonical API type... " >&6; }
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking canonical API type" >&5
+printf %s "checking canonical API type... " >&6; }
 	if test "$krb5_vendor" = "Massachusetts Institute of Technology" || \
 		echo "$krb5_vendor" | grep -i 'MIT' > /dev/null 2>&1 || \
 		echo "$krb5_version_raw" | grep -i 'MIT' > /dev/null 2>&1 ; then
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: MIT" >&5
-$as_echo "MIT" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: MIT" >&5
+printf "%s\n" "MIT" >&6; }
 		krb5_api_type='mit'
-
-if echo "$fr_features" | grep -q "+using MIT kerberos+"; then :
-else :
-	fr_report_prefix=""
-	if test x"$fr_features" != x""; then
-		fr_report_prefix="                                 "
-	fi
-	$as_echo "$fr_report_prefix""" >> config.report.tmp
-	fr_features="$fr_features +using MIT kerberos+"
-fi
-
 	else
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: HEIMDAL" >&5
-$as_echo "HEIMDAL" >&6; }
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: HEIMDAL" >&5
+printf "%s\n" "HEIMDAL" >&6; }
 		krb5_api_type='heimdal'
-
-if echo "$fr_features" | grep -q "+using Heimdal kerberos+"; then :
-else :
-	fr_report_prefix=""
-	if test x"$fr_features" != x""; then
-		fr_report_prefix="                                 "
-	fi
-	$as_echo "$fr_report_prefix""" >> config.report.tmp
-	fr_features="$fr_features +using Heimdal kerberos+"
-fi
-
 	fi
 else
 	smart_try_dir="$rlm_krb5_dir/include"
@@ -3030,168 +3564,201 @@ else
 
 
 ac_safe=`echo "krb5.h" | sed 'y%./+-%__pm%'`
+
+if test "x" = "x"; then
+  sm_pkg=`echo "${ac_safe}" | sed 's/.h//;s/^lib//'`
+else
+  sm_pkg=""
+fi
+
 old_CPPFLAGS="$CPPFLAGS"
-smart_include=
-smart_include_dir="/usr/local/include /opt/include"
+smart_include_dir="/usr/local/include /opt/include /usr/local/${sm_pkg}/include /opt/homebrew/include /opt/homebrew/opt/${sm_pkg}/include"
 
 _smart_try_dir=
 _smart_include_dir=
 
 for _prefix in $smart_prefix ""; do
-  for _dir in $smart_try_dir; do
-    _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_try_dir; do
+  _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
+done
 
-  for _dir in $smart_include_dir; do
-    _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_include_dir; do
+  _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
+done
 done
 
 if test "x$_smart_try_dir" != "x"; then
-  for try in $_smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5.h in $try" >&5
-$as_echo_n "checking for krb5.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5.h in $try" >&5
+printf %s "checking for krb5.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <krb5.h>
+
+		                        #include <krb5.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" = "x"; then
-  for _prefix in $smart_prefix; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/krb5.h" >&5
-$as_echo_n "checking for ${_prefix}/krb5.h... " >&6; }
+for _prefix in $smart_prefix; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/krb5.h" >&5
+printf %s "checking for ${_prefix}/krb5.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <krb5.h>
+
+		                        #include <krb5.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem ${_prefix}/"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem ${_prefix}/"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
 fi
 
 if test "x$smart_include" = "x"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5.h" >&5
-$as_echo_n "checking for krb5.h... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5.h" >&5
+printf %s "checking for krb5.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <krb5.h>
+
+		                        #include <krb5.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include=" "
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include=" "
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 if test "x$smart_include" = "x"; then
-
-  for try in $_smart_include_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5.h in $try" >&5
-$as_echo_n "checking for krb5.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_include_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5.h in $try" >&5
+printf %s "checking for krb5.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <krb5.h>
+
+		                        #include <krb5.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" != "x"; then
-  eval "ac_cv_header_$ac_safe=yes"
-  CPPFLAGS="$smart_include $old_CPPFLAGS"
-  SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
+eval "ac_cv_header_$ac_safe=yes"
+CPPFLAGS="$smart_include $old_CPPFLAGS"
+SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
 fi
 
 smart_prefix=
@@ -3209,118 +3776,131 @@ fail="$fail krb5.h"
 sm_lib_safe=`echo "k5crypto" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "krb5_encrypt_data" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto in $try" >&5
-$as_echo_n "checking for krb5_encrypt_data in -lk5crypto in $try... " >&6; }
-    LIBS="-lk5crypto $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto in $try" >&5
+printf %s "checking for krb5_encrypt_data in -lk5crypto in $try... " >&6; }
+  LIBS="-lk5crypto $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_encrypt_data();
 int
-main ()
+main (void)
 {
 krb5_encrypt_data()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		 smart_lib="-lk5crypto"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lk5crypto"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto" >&5
-$as_echo_n "checking for krb5_encrypt_data in -lk5crypto... " >&6; }
-  LIBS="-lk5crypto $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto" >&5
+printf %s "checking for krb5_encrypt_data in -lk5crypto... " >&6; }
+LIBS="-lk5crypto $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_encrypt_data();
 int
-main ()
+main (void)
 {
 krb5_encrypt_data()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-	        smart_lib="-lk5crypto"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lk5crypto"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto in $try" >&5
-$as_echo_n "checking for krb5_encrypt_data in -lk5crypto in $try... " >&6; }
-    LIBS="-lk5crypto $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_encrypt_data in -lk5crypto in $try" >&5
+printf %s "checking for krb5_encrypt_data in -lk5crypto in $try... " >&6; }
+  LIBS="-lk5crypto $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_encrypt_data();
 int
-main ()
+main (void)
 {
 krb5_encrypt_data()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-		  smart_lib="-lk5crypto"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lk5crypto"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 	if test "x$ac_cv_lib_k5crypto_krb5_encrypt_data" = xyes; then
@@ -3333,118 +3913,131 @@ fi
 sm_lib_safe=`echo "crypto" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "DH_new" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto in $try" >&5
-$as_echo_n "checking for DH_new in -lcrypto in $try... " >&6; }
-    LIBS="-lcrypto $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto in $try" >&5
+printf %s "checking for DH_new in -lcrypto in $try... " >&6; }
+  LIBS="-lcrypto $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char DH_new();
 int
-main ()
+main (void)
 {
 DH_new()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		 smart_lib="-lcrypto"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lcrypto"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto" >&5
-$as_echo_n "checking for DH_new in -lcrypto... " >&6; }
-  LIBS="-lcrypto $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto" >&5
+printf %s "checking for DH_new in -lcrypto... " >&6; }
+LIBS="-lcrypto $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char DH_new();
 int
-main ()
+main (void)
 {
 DH_new()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-	        smart_lib="-lcrypto"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lcrypto"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto in $try" >&5
-$as_echo_n "checking for DH_new in -lcrypto in $try... " >&6; }
-    LIBS="-lcrypto $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for DH_new in -lcrypto in $try" >&5
+printf %s "checking for DH_new in -lcrypto in $try... " >&6; }
+  LIBS="-lcrypto $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char DH_new();
 int
-main ()
+main (void)
 {
 DH_new()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		  smart_lib="-lcrypto"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lcrypto"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 		if test "x$ac_cv_lib_crypto_DH_new" = xyes; then
@@ -3453,8 +4046,8 @@ fi
 	fi
 
 	if test "x$krb5libcrypto" = x; then
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: neither krb5 'k5crypto' nor 'crypto' libraries are found!" >&5
-$as_echo "$as_me: WARNING: neither krb5 'k5crypto' nor 'crypto' libraries are found!" >&2;}
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: neither krb5 'k5crypto' nor 'crypto' libraries are found!" >&5
+printf "%s\n" "$as_me: WARNING: neither krb5 'k5crypto' nor 'crypto' libraries are found!" >&2;}
 	fi
 
 
@@ -3462,123 +4055,136 @@ $as_echo "$as_me: WARNING: neither krb5
 sm_lib_safe=`echo "com_err" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "set_com_err_hook" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err in $try" >&5
-$as_echo_n "checking for set_com_err_hook in -lcom_err in $try... " >&6; }
-    LIBS="-lcom_err $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err in $try" >&5
+printf %s "checking for set_com_err_hook in -lcom_err in $try... " >&6; }
+  LIBS="-lcom_err $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char set_com_err_hook();
 int
-main ()
+main (void)
 {
 set_com_err_hook()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-		 smart_lib="-lcom_err"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lcom_err"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err" >&5
-$as_echo_n "checking for set_com_err_hook in -lcom_err... " >&6; }
-  LIBS="-lcom_err $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err" >&5
+printf %s "checking for set_com_err_hook in -lcom_err... " >&6; }
+LIBS="-lcom_err $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char set_com_err_hook();
 int
-main ()
+main (void)
 {
 set_com_err_hook()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-	        smart_lib="-lcom_err"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lcom_err"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err in $try" >&5
-$as_echo_n "checking for set_com_err_hook in -lcom_err in $try... " >&6; }
-    LIBS="-lcom_err $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for set_com_err_hook in -lcom_err in $try" >&5
+printf %s "checking for set_com_err_hook in -lcom_err in $try... " >&6; }
+  LIBS="-lcom_err $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char set_com_err_hook();
 int
-main ()
+main (void)
 {
 set_com_err_hook()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		  smart_lib="-lcom_err"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lcom_err"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 	if test "x$ac_cv_lib_com_err_set_com_err_hook" != xyes; then
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: the comm_err library isn't found!" >&5
-$as_echo "$as_me: WARNING: the comm_err library isn't found!" >&2;}
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: the comm_err library isn't found!" >&5
+printf "%s\n" "$as_me: WARNING: the comm_err library isn't found!" >&2;}
 	fi
 
 
@@ -3586,264 +4192,268 @@ $as_echo "$as_me: WARNING: the comm_err
 sm_lib_safe=`echo "krb5" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "krb5_verify_user_opt" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_verify_user_opt in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5 in $try" >&5
+printf %s "checking for krb5_verify_user_opt in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_verify_user_opt();
 int
-main ()
+main (void)
 {
 krb5_verify_user_opt()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-		 smart_lib="-lkrb5"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5" >&5
-$as_echo_n "checking for krb5_verify_user_opt in -lkrb5... " >&6; }
-  LIBS="-lkrb5 $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5" >&5
+printf %s "checking for krb5_verify_user_opt in -lkrb5... " >&6; }
+LIBS="-lkrb5 $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_verify_user_opt();
 int
-main ()
+main (void)
 {
 krb5_verify_user_opt()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-	        smart_lib="-lkrb5"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lkrb5"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_verify_user_opt in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_verify_user_opt in -lkrb5 in $try" >&5
+printf %s "checking for krb5_verify_user_opt in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_verify_user_opt();
 int
-main ()
+main (void)
 {
 krb5_verify_user_opt()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		  smart_lib="-lkrb5"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 	if test "x$ac_cv_lib_krb5_krb5_verify_user_opt" = xyes; then
 		krb5_api_type='heimdal'
-
-if echo "$fr_features" | grep -q "+using Heimdal kerberos+"; then :
-else :
-	fr_report_prefix=""
-	if test x"$fr_features" != x""; then
-		fr_report_prefix="                                 "
-	fi
-	$as_echo "$fr_report_prefix""" >> config.report.tmp
-	fr_features="$fr_features +using Heimdal kerberos+"
-fi
-
 	else
 		krb5_api_type='mit'
 
-if echo "$fr_features" | grep -q "+using MIT kerberos+"; then :
-else :
-	fr_report_prefix=""
-	if test x"$fr_features" != x""; then
-		fr_report_prefix="                                 "
-	fi
-	$as_echo "$fr_report_prefix""" >> config.report.tmp
-	fr_features="$fr_features +using MIT kerberos+"
-fi
-
-
 
 
 sm_lib_safe=`echo "krb5" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "krb5_get_init_creds_password" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_get_init_creds_password in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5 in $try" >&5
+printf %s "checking for krb5_get_init_creds_password in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_get_init_creds_password();
 int
-main ()
+main (void)
 {
 krb5_get_init_creds_password()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		 smart_lib="-lkrb5"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5" >&5
-$as_echo_n "checking for krb5_get_init_creds_password in -lkrb5... " >&6; }
-  LIBS="-lkrb5 $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5" >&5
+printf %s "checking for krb5_get_init_creds_password in -lkrb5... " >&6; }
+LIBS="-lkrb5 $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_get_init_creds_password();
 int
-main ()
+main (void)
 {
 krb5_get_init_creds_password()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-	        smart_lib="-lkrb5"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lkrb5"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_get_init_creds_password in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_get_init_creds_password in -lkrb5 in $try" >&5
+printf %s "checking for krb5_get_init_creds_password in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_get_init_creds_password();
 int
-main ()
+main (void)
 {
 krb5_get_init_creds_password()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-		  smart_lib="-lkrb5"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 		if test "x$ac_cv_lib_krb5_krb5_get_init_creds_password" != xyes; then
@@ -3858,17 +4468,24 @@ fi
 LDFLAGS="${LDFLAGS} ${SMART_LIBS}"
 CFLAGS="${CFLAGS} ${SMART_CPPFLAGS}"
 
-for ac_func in krb5_get_error_message krb5_free_error_string krb5_free_error_message
-do :
-  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
-  cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
+ac_fn_c_check_func "$LINENO" "krb5_get_error_message" "ac_cv_func_krb5_get_error_message"
+if test "x$ac_cv_func_krb5_get_error_message" = xyes
+then :
+  printf "%s\n" "#define HAVE_KRB5_GET_ERROR_MESSAGE 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "krb5_free_error_string" "ac_cv_func_krb5_free_error_string"
+if test "x$ac_cv_func_krb5_free_error_string" = xyes
+then :
+  printf "%s\n" "#define HAVE_KRB5_FREE_ERROR_STRING 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "krb5_free_error_message" "ac_cv_func_krb5_free_error_message"
+if test "x$ac_cv_func_krb5_free_error_message" = xyes
+then :
+  printf "%s\n" "#define HAVE_KRB5_FREE_ERROR_MESSAGE 1" >>confdefs.h
 
 fi
-done
 
 if test "x$ac_cv_func_krb5_get_error_message" = xyes; then
 	krb5mod_cflags="${krb5mod_cflags} -DHAVE_KRB5_GET_ERROR_MESSAGE"
@@ -3888,143 +4505,156 @@ if test "$krb5threadsafe" != "no"; then
 sm_lib_safe=`echo "krb5" | sed 'y%./+-%__p_%'`
 sm_func_safe=`echo "krb5_is_thread_safe" | sed 'y%./+-%__p_%'`
 
+if test "x" = "x"; then
+  sm_pkg="${sm_lib_safe}"
+else
+  sm_pkg=""
+fi
+
 old_LIBS="$LIBS"
 old_CPPFLAGS="$CPPFLAGS"
 smart_lib=
 smart_ldflags=
-smart_lib_dir=
+smart_lib_dir="/usr/local/lib /opt/lib /usr/local/${sm_pkg}/lib  /opt/homebrew/lib /opt/homebrew/opt/${sm_pkg}/lib"
 
 if test "x$smart_try_dir" != "x"; then
-  for try in $smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_is_thread_safe in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5 in $try" >&5
+printf %s "checking for krb5_is_thread_safe in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_is_thread_safe();
 int
-main ()
+main (void)
 {
 krb5_is_thread_safe()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-		 smart_lib="-lkrb5"
-		 smart_ldflags="-L$try -Wl,-rpath,$try"
-		 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		 break
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5" >&5
-$as_echo_n "checking for krb5_is_thread_safe in -lkrb5... " >&6; }
-  LIBS="-lkrb5 $old_LIBS"
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5" >&5
+printf %s "checking for krb5_is_thread_safe in -lkrb5... " >&6; }
+LIBS="-lkrb5 $old_LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_is_thread_safe();
 int
-main ()
+main (void)
 {
 krb5_is_thread_safe()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-
-	        smart_lib="-lkrb5"
-	        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+if ac_fn_c_try_link "$LINENO"
+then :
 
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+	           smart_lib="-lkrb5"
+	           smart_ld_found=""
+	           { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  LIBS="$old_LIBS"
+LIBS="$old_LIBS"
 fi
 
 if test "x$smart_lib" = "x"; then
-  for try in /usr/local/lib /opt/lib; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5 in $try" >&5
-$as_echo_n "checking for krb5_is_thread_safe in -lkrb5 in $try... " >&6; }
-    LIBS="-lkrb5 $old_LIBS"
-    CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $smart_lib_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for krb5_is_thread_safe in -lkrb5 in $try" >&5
+printf %s "checking for krb5_is_thread_safe in -lkrb5 in $try... " >&6; }
+  LIBS="-lkrb5 $old_LIBS"
+  CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 extern char krb5_is_thread_safe();
 int
-main ()
+main (void)
 {
 krb5_is_thread_safe()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"
+then :
 
-		  smart_lib="-lkrb5"
-		  smart_ldflags="-L$try -Wl,-rpath,$try"
-		  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		  break
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		   smart_lib="-lkrb5"
+		   smart_ldflags="-L$try -Wl,-rpath,$try"
+		   smart_ld_found="$try"
+		   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		   break
+
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
-rm -f core conftest.err conftest.$ac_objext \
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-  done
-  LIBS="$old_LIBS"
-  CPPFLAGS="$old_CPPFLAGS"
+done
+LIBS="$old_LIBS"
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_lib" != "x"; then
-  eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
-  LIBS="$smart_ldflags $smart_lib $old_LIBS"
-  SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
+LIBS="$smart_ldflags $smart_lib $old_LIBS"
+SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
+SMART_LD_FOUND="$smart_ld_found"
 fi
 
 	if test "x$ac_cv_lib_krb5_krb5_is_thread_safe" = xyes; then
-		if test "$cross_compiling" = yes; then :
-  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
-else
+		if test "$cross_compiling" = yes
+then :
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cross compiling: not checking" >&5
+printf "%s\n" "$as_me: WARNING: cross compiling: not checking" >&2;}
+else $as_nop
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <krb5.h>
 int
-main ()
+main (void)
 {
 return krb5_is_thread_safe() ? 0 : 1
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_c_try_run "$LINENO"
+then :
   krb5threadsafe="-DKRB5_IS_THREAD_SAFE"
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libkrb5 is not threadsafe" >&5
-$as_echo "$as_me: WARNING: libkrb5 is not threadsafe" >&2;}
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: libkrb5 is not threadsafe" >&5
+printf "%s\n" "$as_me: WARNING: libkrb5 is not threadsafe" >&2;}
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -4039,168 +4669,201 @@ if test "$krb5_api_type" = "mit"; then
 
 
 ac_safe=`echo "com_err.h" | sed 'y%./+-%__pm%'`
+
+if test "x" = "x"; then
+  sm_pkg=`echo "${ac_safe}" | sed 's/.h//;s/^lib//'`
+else
+  sm_pkg=""
+fi
+
 old_CPPFLAGS="$CPPFLAGS"
-smart_include=
-smart_include_dir="/usr/local/include /opt/include"
+smart_include_dir="/usr/local/include /opt/include /usr/local/${sm_pkg}/include /opt/homebrew/include /opt/homebrew/opt/${sm_pkg}/include"
 
 _smart_try_dir=
 _smart_include_dir=
 
 for _prefix in $smart_prefix ""; do
-  for _dir in $smart_try_dir; do
-    _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_try_dir; do
+  _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
+done
 
-  for _dir in $smart_include_dir; do
-    _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_include_dir; do
+  _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
+done
 done
 
 if test "x$_smart_try_dir" != "x"; then
-  for try in $_smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for com_err.h in $try" >&5
-$as_echo_n "checking for com_err.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for com_err.h in $try" >&5
+printf %s "checking for com_err.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <com_err.h>
+
+		                        #include <com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" = "x"; then
-  for _prefix in $smart_prefix; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/com_err.h" >&5
-$as_echo_n "checking for ${_prefix}/com_err.h... " >&6; }
+for _prefix in $smart_prefix; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/com_err.h" >&5
+printf %s "checking for ${_prefix}/com_err.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <com_err.h>
+
+		                        #include <com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem ${_prefix}/"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem ${_prefix}/"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
 fi
 
 if test "x$smart_include" = "x"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for com_err.h" >&5
-$as_echo_n "checking for com_err.h... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for com_err.h" >&5
+printf %s "checking for com_err.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <com_err.h>
+
+		                        #include <com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include=" "
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include=" "
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 if test "x$smart_include" = "x"; then
-
-  for try in $_smart_include_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for com_err.h in $try" >&5
-$as_echo_n "checking for com_err.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_include_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for com_err.h in $try" >&5
+printf %s "checking for com_err.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <com_err.h>
+
+		                        #include <com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" != "x"; then
-  eval "ac_cv_header_$ac_safe=yes"
-  CPPFLAGS="$smart_include $old_CPPFLAGS"
-  SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
+eval "ac_cv_header_$ac_safe=yes"
+CPPFLAGS="$smart_include $old_CPPFLAGS"
+SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
 fi
 
 smart_prefix=
@@ -4209,168 +4872,201 @@ smart_prefix=
 
 
 ac_safe=`echo "et/com_err.h" | sed 'y%./+-%__pm%'`
+
+if test "x" = "x"; then
+  sm_pkg=`echo "${ac_safe}" | sed 's/.h//;s/^lib//'`
+else
+  sm_pkg=""
+fi
+
 old_CPPFLAGS="$CPPFLAGS"
-smart_include=
-smart_include_dir="/usr/local/include /opt/include"
+smart_include_dir="/usr/local/include /opt/include /usr/local/${sm_pkg}/include /opt/homebrew/include /opt/homebrew/opt/${sm_pkg}/include"
 
 _smart_try_dir=
 _smart_include_dir=
 
 for _prefix in $smart_prefix ""; do
-  for _dir in $smart_try_dir; do
-    _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_try_dir; do
+  _smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
+done
 
-  for _dir in $smart_include_dir; do
-    _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
-  done
+for _dir in $smart_include_dir; do
+  _smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
+done
 done
 
 if test "x$_smart_try_dir" != "x"; then
-  for try in $_smart_try_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h in $try" >&5
-$as_echo_n "checking for et/com_err.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_try_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h in $try" >&5
+printf %s "checking for et/com_err.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <et/com_err.h>
+
+		                        #include <et/com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" = "x"; then
-  for _prefix in $smart_prefix; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/et/com_err.h" >&5
-$as_echo_n "checking for ${_prefix}/et/com_err.h... " >&6; }
+for _prefix in $smart_prefix; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ${_prefix}/et/com_err.h" >&5
+printf %s "checking for ${_prefix}/et/com_err.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <et/com_err.h>
+
+		                        #include <et/com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem ${_prefix}/"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem ${_prefix}/"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
 fi
 
 if test "x$smart_include" = "x"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h" >&5
-$as_echo_n "checking for et/com_err.h... " >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h" >&5
+printf %s "checking for et/com_err.h... " >&6; }
 
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <et/com_err.h>
+
+		                        #include <et/com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include=" "
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include=" "
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
 if test "x$smart_include" = "x"; then
-
-  for try in $_smart_include_dir; do
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h in $try" >&5
-$as_echo_n "checking for et/com_err.h in $try... " >&6; }
-    CPPFLAGS="-isystem $try $old_CPPFLAGS"
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+for try in $_smart_include_dir; do
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for et/com_err.h in $try" >&5
+printf %s "checking for et/com_err.h in $try... " >&6; }
+  CPPFLAGS="-isystem $try $old_CPPFLAGS"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-		    #include <et/com_err.h>
+
+		                        #include <et/com_err.h>
+
 int
-main ()
+main (void)
 {
-int a = 1;
+
+                                        int a = 1;
+
+
   ;
   return 0;
 }
+
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"
+then :
 
-		     smart_include="-isystem $try"
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-		     break
+		      smart_include="-isystem $try"
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
+		      break
 
-else
+else $as_nop
 
-		     smart_include=
-		     { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
+		      smart_include=
+		      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  done
-  CPPFLAGS="$old_CPPFLAGS"
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+done
+CPPFLAGS="$old_CPPFLAGS"
 fi
 
 if test "x$smart_include" != "x"; then
-  eval "ac_cv_header_$ac_safe=yes"
-  CPPFLAGS="$smart_include $old_CPPFLAGS"
-  SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
+eval "ac_cv_header_$ac_safe=yes"
+CPPFLAGS="$smart_include $old_CPPFLAGS"
+SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
 fi
 
 smart_prefix=
@@ -4406,10 +5102,10 @@ if test x"$fail" != x""; then
 		as_fn_error $? "set --without-rlm_krb5 to disable it explicitly." "$LINENO" 5
 	else
 
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: silently not building rlm_krb5." >&5
-$as_echo "$as_me: WARNING: silently not building rlm_krb5." >&2;}
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: FAILURE: rlm_krb5 requires: $fail." >&5
-$as_echo "$as_me: WARNING: FAILURE: rlm_krb5 requires: $fail." >&2;};
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: silently not building rlm_krb5." >&5
+printf "%s\n" "$as_me: WARNING: silently not building rlm_krb5." >&2;}
+		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: FAILURE: rlm_krb5 requires: $fail." >&5
+printf "%s\n" "$as_me: WARNING: FAILURE: rlm_krb5 requires: $fail." >&2;};
 		fail="$(echo $fail)"
 
 
@@ -4473,8 +5169,8 @@ _ACEOF
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
@@ -4504,15 +5200,15 @@ $as_echo "$as_me: WARNING: cache variabl
      /^ac_cv_env_/b end
      t clear
      :clear
-     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
      t end
      s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
     if test "x$cache_file" != "x/dev/null"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-$as_echo "$as_me: updating cache $cache_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
       if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
       else
@@ -4526,8 +5222,8 @@ $as_echo "$as_me: updating cache $cache_
       fi
     fi
   else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
 rm -f confcache
@@ -4580,7 +5276,7 @@ U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
   as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -4596,8 +5292,8 @@ LTLIBOBJS=$ac_ltlibobjs
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
 cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
@@ -4620,14 +5316,16 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_wri
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else
+else $as_nop
   case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
@@ -4637,46 +5335,46 @@ esac
 fi
 
 
+
+# Reset variables that may have inherited troublesome values from
+# the environment.
+
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-# Prefer a ksh shell builtin over an external printf program on Solaris,
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='print -r --'
-  as_echo_n='print -rn --'
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
-else
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
-    as_echo_n='/usr/ucb/echo -n'
-  else
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
-    as_echo_n_body='eval
-      arg=$1;
-      case $arg in #(
-      *"$as_nl"*)
-	expr "X$arg" : "X\\(.*\\)$as_nl";
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
-      esac;
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
+IFS=" ""	$as_nl"
+
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# Ensure predictable behavior from utilities with locale-dependent output.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# We cannot yet rely on "unset" to work, but we need these variables
+# to be unset--not just set to an empty or harmless value--now, to
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
+# also avoids known problems related to "unset" and subshell syntax
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
+do eval test \${$as_var+y} \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+
+# Ensure that fds 0, 1, and 2 are open.
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
 
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
   PATH_SEPARATOR=:
   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -4685,13 +5383,6 @@ if test "${PATH_SEPARATOR+set}" != set;
 fi
 
 
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
-
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -4700,8 +5391,12 @@ case $0 in #((
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
   done
 IFS=$as_save_IFS
 
@@ -4713,30 +5408,10 @@ if test "x$as_myself" = x; then
   as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
   exit 1
 fi
 
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
@@ -4749,13 +5424,14 @@ as_fn_error ()
   as_status=$1; test $as_status -eq 0 && as_status=1
   if test "$4"; then
     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
   fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -4782,18 +5458,20 @@ as_fn_unset ()
   { eval $1=; unset $1;}
 }
 as_unset=as_fn_unset
+
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
   eval 'as_fn_append ()
   {
     eval $1+=\$2
   }'
-else
+else $as_nop
   as_fn_append ()
   {
     eval $1=\$$1\$2
@@ -4805,12 +5483,13 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
   eval 'as_fn_arith ()
   {
     as_val=$(( $* ))
   }'
-else
+else $as_nop
   as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
@@ -4841,7 +5520,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
     sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -4863,6 +5542,10 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTE
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
 
+
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -4876,6 +5559,12 @@ case `echo -n x` in #(((((
   ECHO_N='-n';;
 esac
 
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
+
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -4917,7 +5606,7 @@ as_fn_mkdir_p ()
     as_dirs=
     while :; do
       case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
       *) as_qdir=$as_dir;;
       esac
       as_dirs="'$as_qdir' $as_dirs"
@@ -4926,7 +5615,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -4989,7 +5678,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_wri
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -5038,14 +5727,16 @@ $config_files
 Report bugs to the package provider."
 
 _ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.69,
+configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -5082,21 +5773,21 @@ do
   -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    $as_echo "$ac_cs_version"; exit ;;
+    printf "%s\n" "$ac_cs_version"; exit ;;
   --config | --confi | --conf | --con | --co | --c )
-    $as_echo "$ac_cs_config"; exit ;;
+    printf "%s\n" "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     '') as_fn_error $? "missing file argument" ;;
     esac
     as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h |  --help | --hel | -h )
-    $as_echo "$ac_cs_usage"; exit ;;
+    printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
@@ -5124,7 +5815,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_writ
 if \$ac_cs_recheck; then
   set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
-  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
   export CONFIG_SHELL
   exec "\$@"
@@ -5138,7 +5829,7 @@ exec 5>>config.log
   sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  $as_echo "$ac_log"
+  printf "%s\n" "$ac_log"
 } >&5
 
 _ACEOF
@@ -5163,7 +5854,7 @@ done
 # We use the long form for the default assignment because of an extremely
 # bizarre bug on SunOS 4.1.3.
 if $ac_need_defaults; then
-  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
 fi
 
 # Have a temporary directory for convenience.  Make it in the build tree
@@ -5391,7 +6082,7 @@ do
 	   esac ||
 	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
@@ -5399,17 +6090,17 @@ do
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+printf "%s\n" "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
     case $configure_input in #(
     *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
+       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
        sed 's/[\\\\&|]/\\\\&/g'`;; #(
     *) ac_sed_conf_input=$configure_input;;
     esac
@@ -5426,7 +6117,7 @@ $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
+printf "%s\n" X"$ac_file" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -5450,9 +6141,9 @@ $as_echo X"$ac_file" |
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
   # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
   case $ac_top_builddir_sub in
   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -5505,8 +6196,8 @@ ac_sed_dataroot='
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   ac_datarootdir_hack='
@@ -5548,9 +6239,9 @@ test -z "$ac_datarootdir_hack$ac_dataroo
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
@@ -5597,7 +6288,8 @@ if test "$no_create" != yes; then
   $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
+
--- a/src/modules/rlm_krb5/configure.ac
+++ b/src/modules/rlm_krb5/configure.ac
@@ -1,4 +1,4 @@
-AC_PREREQ([2.69])
+AC_PREREQ([2.71])
 AC_INIT
 AC_CONFIG_SRCDIR([rlm_krb5.c])
 AC_REVISION($Revision$)
@@ -13,8 +13,8 @@ dnl extra argument: --with-rlm-krb5-dir
 rlm_krb5_dir=
 AC_ARG_WITH(rlm-krb5-dir,
 	[AS_HELP_STRING([--with-rlm-krb5-dir=DIR],
-		[Directory for krb5 files])],
-	[ case "$withval" in
+		[directory where krb5 files are installed])],
+	[case "$withval" in
 	no)
 		AC_MSG_ERROR(Need rlm-krb5-dir)
 		;;
@@ -26,7 +26,6 @@ AC_ARG_WITH(rlm-krb5-dir,
 	esac])
 
 AC_PATH_PROG(krb5_config, krb5-config, not-found, [${rlm_krb5_dir}/bin:${PATH}:/usr/bin:/usr/local/bin])
-
 dnl #
 dnl # If we can find krb5-config we can get the version of the library and determine
 dnl # whether it's safe to enable threading.
@@ -46,7 +45,7 @@ if test "$krb5_config" != 'not-found'; t
 
 	dnl # AWK originally from from https://github.com/hpc/lustre
 	krb5_version=$(echo "$krb5_version_raw" | head -n 1 | \
-		awk '{split($(4),v,"."); if (v@<:@"3"@:>@ = "") v@<:@"3"@:>@ = "0"; print v@<:@"1"@:>@v@<:@"2"@:>@v@<:@"3"@:>@ }')
+		awk '{split($(4),v,"."); if (v@<:@"3"@:>@ == "") v@<:@"3"@:>@ = "0"; print v@<:@"1"@:>@v@<:@"2"@:>@v@<:@"3"@:>@ }')
 	AC_MSG_RESULT([${krb5_version_raw} ($krb5_version)])
 
 	AC_MSG_CHECKING([krb5-config reported vendor])
@@ -59,11 +58,9 @@ if test "$krb5_config" != 'not-found'; t
 		echo "$krb5_version_raw" | grep -i 'MIT' > /dev/null 2>&1 ; then
 		AC_MSG_RESULT([MIT])
 		krb5_api_type='mit'
-		FR_MODULE_FEATURE([using MIT kerberos])
 	else
 		AC_MSG_RESULT([HEIMDAL])
 		krb5_api_type='heimdal'
-		FR_MODULE_FEATURE([using Heimdal kerberos])
 	fi
 else
 	smart_try_dir="$rlm_krb5_dir/include"
@@ -101,14 +98,12 @@ else
 	FR_SMART_CHECK_LIB(krb5, krb5_verify_user_opt)
 	if test "x$ac_cv_lib_krb5_krb5_verify_user_opt" = xyes; then
 		krb5_api_type='heimdal'
-		FR_MODULE_FEATURE([using Heimdal kerberos])
 	else
 		krb5_api_type='mit'
-		FR_MODULE_FEATURE([using MIT kerberos])
 
 		FR_SMART_CHECK_LIB(krb5, krb5_get_init_creds_password)
 		if test "x$ac_cv_lib_krb5_krb5_get_init_creds_password" != xyes; then
-		    FR_MODULE_FAIL([krb5])
+			FR_MODULE_FAIL([krb5])
 		fi
 	fi
 
@@ -123,7 +118,11 @@ CFLAGS="${CFLAGS} ${SMART_CPPFLAGS}"
 dnl #
 dnl # Check how to free things returned by krb5_get_error_message
 dnl #
-AC_CHECK_FUNCS([krb5_get_error_message krb5_free_error_string krb5_free_error_message])
+AC_CHECK_FUNCS(\
+	krb5_get_error_message \
+	krb5_free_error_string \
+	krb5_free_error_message \
+)
 if test "x$ac_cv_func_krb5_get_error_message" = xyes; then
 	krb5mod_cflags="${krb5mod_cflags} -DHAVE_KRB5_GET_ERROR_MESSAGE"
 fi
@@ -143,7 +142,8 @@ if test "$krb5threadsafe" != "no"; then
 	FR_SMART_CHECK_LIB(krb5, krb5_is_thread_safe)
 	if test "x$ac_cv_lib_krb5_krb5_is_thread_safe" = xyes; then
 		AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]], [[return krb5_is_thread_safe() ? 0 : 1]])],
-			[krb5threadsafe="-DKRB5_IS_THREAD_SAFE"], [AC_MSG_WARN([[libkrb5 is not threadsafe]])])
+			[krb5threadsafe="-DKRB5_IS_THREAD_SAFE"], [AC_MSG_WARN([[libkrb5 is not threadsafe]])],
+			[AC_MSG_WARN(cross compiling: not checking)])
 	fi
 else
 	krb5threadsafe=""
@@ -166,7 +166,7 @@ else
 	krb5mod_cflags="$krb5mod_cflags -DHEIMDAL_KRB5"
 fi
 
-FR_MODULE_END_TESTS
+FR_MODULE_END_TESTS(strict)
 
 mod_ldflags="$krb5mod_ldflags $krb5libcrypto $SMART_LIBS"
 mod_cflags="$krb5mod_cflags $krb5threadsafe $SMART_CPPFLAGS"