diff --git a/DESCRIPTION b/DESCRIPTION
index 7ee5ad4..f1b69b7 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: surveyvoi
 Type: Package
-Version: 1.0.3.11
+Version: 1.0.4
 Title: Survey Value of Information
 Description: Decision support tool for prioritizing sites for ecological
     surveys based on their potential to improve plans for conserving
@@ -75,11 +75,11 @@ LazyData: true
 Language: en-US
 SystemRequirements:
     C++11,
-    JAGS (>= 4.3.0),
+    JAGS (>= 4.3.0) (optional),
+    fftw3 (>= 3.3),
     gmp (>= 6.2.1),
     gmpxx (>= 6.2.1),
-    mpfr (>= 4.1.0),
-    pkg-config (>= 0.29.2),
+    mpfr (>= 3.0.0),
     autoconf (>= 2.69),
     automake (>= 1.16.5)
 URL: https://prioritizr.github.io/surveyvoi/
diff --git a/Makefile b/Makefile
index f354d18..5b58d27 100644
--- a/Makefile
+++ b/Makefile
@@ -72,6 +72,10 @@ wbcheck:
 	R --slave -e "devtools::check_win_devel()"
 	cp -Rf doc inst/
 
+maccheck:
+	R --slave -e "devtools::check_mac_release()"
+	cp -Rf doc inst/
+
 urlcheck:
 	R --slave -e "devtools::document();urlchecker::url_check()"
 
diff --git a/NEWS.md b/NEWS.md
index e7c1edf..f744181 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,12 @@
+# surveyvoi 1.0.4
+
+- CRAN release.
+
+# surveyvoi 1.0.3.12
+
+- Update CRAN comments document and remove pkg-config from system requirements.
+- Fix compiler warning thrown during installation.
+
 # surveyvoi 1.0.3.11
 
 - Update `simulate_site_data()` function to remove RandomFields package
diff --git a/README.md b/README.md
index fab73de..61c5070 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ Please cite the *surveyvoi R* package when using it in publications. To
 cite the developmental version, please use:
 
 > Hanson JO, Chadès I, Hudgins EJ, Bennett J (2022). surveyvoi: Survey
-> Value of Information. R package version 1.0.3.10. Available at
+> Value of Information. R package version 1.0.4. Available at
 > <https://github.com/prioritizr/surveyvoi>.
 
 ## Usage
diff --git a/configure b/configure
index edc5b3b..f223ec9 100755
--- a/configure
+++ b/configure
@@ -1,11 +1,12 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for surveyvoi see.DESCRIPTION.
+# Generated by GNU Autoconf 2.71 for surveyvoi see.DESCRIPTION.
 #
 # Report bugs to <https://github.com/prioritizr/surveyvoi/issues>.
 #
 #
-# 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
@@ -16,14 +17,16 @@
 
 # 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 ;; #(
@@ -33,46 +36,46 @@ 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=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -81,13 +84,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 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 #((
@@ -96,8 +92,12 @@ 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
 
@@ -109,30 +109,10 @@ 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.
@@ -154,20 +134,22 @@ 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 ;; #(
@@ -187,41 +169,52 @@ as_fn_success || { exitcode=1; echo as_fn_success failed.; }
 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""$as_suggested" 2>/dev/null
+then :
   break 2
 fi
 fi
@@ -229,14 +222,21 @@ fi
        esac
   as_found=false
 done
-$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
@@ -254,18 +254,19 @@ 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 and
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org and
 $0: https://github.com/prioritizr/surveyvoi/issues about
 $0: your system, including any error possibly output before
 $0: this message. Then install a modern shell, or manually
@@ -293,6 +294,7 @@ as_fn_unset ()
 }
 as_unset=as_fn_unset
 
+
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -310,6 +312,14 @@ 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
 # -------------
@@ -324,7 +334,7 @@ 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"
@@ -333,7 +343,7 @@ $as_expr X"$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
@@ -372,12 +382,13 @@ 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
@@ -389,18 +400,27 @@ 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]
 # ----------------------------------------
@@ -412,9 +432,9 @@ 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
 
@@ -441,7 +461,7 @@ 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 '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -485,7 +505,7 @@ as_cr_alnum=$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 $CONFIG_SHELL, we're ensured to have
   # already done that, so ensure we don't try to do so again and fall
@@ -499,6 +519,10 @@ as_cr_alnum=$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*)
@@ -512,6 +536,13 @@ 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
@@ -703,8 +734,6 @@ 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 ;;
@@ -745,9 +774,9 @@ 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"
@@ -771,9 +800,9 @@ 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"
@@ -984,9 +1013,9 @@ 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"
@@ -1000,9 +1029,9 @@ 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"
@@ -1046,9 +1075,9 @@ 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}"
     ;;
 
@@ -1064,7 +1093,7 @@ 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
 
@@ -1128,7 +1157,7 @@ $as_expr X"$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\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1267,9 +1296,9 @@ if test "$ac_init_help" = "recursive"; then
 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/ ;;
@@ -1297,7 +1326,8 @@ 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
@@ -1305,7 +1335,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
       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
@@ -1315,9 +1345,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 surveyvoi configure see.DESCRIPTION
-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
@@ -1327,14 +1357,34 @@ fi
 ## ------------------------ ##
 ## Autoconf initialization. ##
 ## ------------------------ ##
+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 surveyvoi $as_me see.DESCRIPTION, 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
@@ -1367,8 +1417,12 @@ 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
 
@@ -1403,7 +1457,7 @@ 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'" ;;
@@ -1438,11 +1492,13 @@ 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
 
-    $as_echo "## ---------------- ##
+    printf "%s\n" "## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##"
     echo
@@ -1453,8 +1509,8 @@ trap 'exit_status=$?
     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) ;; #(
@@ -1478,7 +1534,7 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 )
     echo
 
-    $as_echo "## ----------------- ##
+    printf "%s\n" "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
     echo
@@ -1486,14 +1542,14 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
     do
       eval ac_val=\$$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
@@ -1501,15 +1557,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       do
 	eval ac_val=\$$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
@@ -1517,8 +1573,8 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       echo
     fi
     test "$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 &&
@@ -1532,63 +1588,48 @@ 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
@@ -1598,16 +1639,16 @@ 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
 
@@ -1621,12 +1662,12 @@ 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=: ;;
     ,);;
     *)
@@ -1635,24 +1676,24 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	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
@@ -1662,11 +1703,12 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
   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. ##
@@ -1701,17 +1743,17 @@ MPFR_TEST_HEADER="<mpfr.h>"
 
 # Preliminary processing
 ## print status message
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if R found" >&5
-$as_echo_n "checking if R found... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if R found" >&5
+printf %s "checking if R found... " >&6; }
 ## ensure C++ is set up as R expects
 : ${R_HOME=`R RHOME`}
 if test -z "${R_HOME}"; then
-  { $as_echo "$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; }
   as_fn_error $? "Could not determine R_HOME." "$LINENO" 5
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 
 ## verify suitable R version
 RBIN="${R_HOME}/bin/R"
@@ -1722,13 +1764,13 @@ RVER_MINOR=`echo ${RVER} | cut  -f2 -d"."`
 RVER_PATCH=`echo ${RVER} | cut  -f3 -d"."`
 
 if test $RVER_MAJOR = "development"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: R version: development" >&5
-$as_echo "$as_me: R version: development" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: R version: development" >&5
+printf "%s\n" "$as_me: R version: development" >&6;}
   CXX11=`"${RBIN}" CMD config CXX11`
   CXX11STD=`"${RBIN}" CMD config CXX11STD`
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: R version: ${RVER_MAJOR}.${RVER_MINOR}.${RVER_PATCH}" >&5
-$as_echo "$as_me: R version: ${RVER_MAJOR}.${RVER_MINOR}.${RVER_PATCH}" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: R version: ${RVER_MAJOR}.${RVER_MINOR}.${RVER_PATCH}" >&5
+printf "%s\n" "$as_me: R version: ${RVER_MAJOR}.${RVER_MINOR}.${RVER_PATCH}" >&6;}
   if test $RVER_MAJOR -lt 4; then
       as_fn_error $? "surveyvoi is not compatible with R versions before 4.0.0" "$LINENO" 5
   else
@@ -1750,11 +1792,12 @@ fi
 
 # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-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_prog_PKGCONFIG+:} 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_PKGCONFIG+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
   if test -n "$PKGCONFIG"; then
   ac_cv_prog_PKGCONFIG="$PKGCONFIG" # Let the user override the test.
 else
@@ -1762,11 +1805,15 @@ as_save_IFS=$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_PKGCONFIG="yes"
-    $as_echo "$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$ac_exec_ext" >&5
     break 2
   fi
 done
@@ -1777,11 +1824,11 @@ fi
 fi
 PKGCONFIG=$ac_cv_prog_PKGCONFIG
 if test -n "$PKGCONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
-$as_echo "$PKGCONFIG" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PKGCONFIG" >&5
+printf "%s\n" "$PKGCONFIG" >&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
 
 
@@ -1819,15 +1866,15 @@ CPPFLAGS="${PKG_CPPFLAGS}"
 LIBS="${PKG_LIBS}"
 
 ## display compiler flags
-{ $as_echo "$as_me:${as_lineno-$LINENO}: Package PKG_CPPFLAGS: ${CPPFLAGS}" >&5
-$as_echo "$as_me: Package PKG_CPPFLAGS: ${CPPFLAGS}" >&6;}
-{ $as_echo "$as_me:${as_lineno-$LINENO}: Package PKG_LIBS:     ${LIBS}" >&5
-$as_echo "$as_me: Package PKG_LIBS:     ${LIBS}" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Package PKG_CPPFLAGS: ${CPPFLAGS}" >&5
+printf "%s\n" "$as_me: Package PKG_CPPFLAGS: ${CPPFLAGS}" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: Package PKG_LIBS:     ${LIBS}" >&5
+printf "%s\n" "$as_me: Package PKG_LIBS:     ${LIBS}" >&6;}
 
 # Verify GMP settings work
 ## display message
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if ${GMP_NAME} compiles" >&5
-$as_echo_n "checking if ${GMP_NAME} compiles... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ${GMP_NAME} compiles" >&5
+printf %s "checking if ${GMP_NAME} compiles... " >&6; }
 
 ## try compiling file with settings
 cat > gmp_test.cpp <<_EOCONF
@@ -1845,32 +1892,32 @@ _EOCONF
 ${CXX} ${CPPFLAGS} -o gmp_test gmp_test.cpp ${LIBS} 2> errors.txt
 if test `echo $?` -ne 0 ; then
   gmp_ok=no
-  { $as_echo "$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; }
 else
   gmp_ok=yes
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 fi
 
 ## throw error if needed
 if test x"${gmp_ok}" == x"no"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: Configuration failed because ${GMP_NAME} was not found. Try installing:" >&5
-$as_echo "$as_me: Configuration failed because ${GMP_NAME} was not found. Try installing:" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * deb:  ${GMP_DEB_NAME} (Debian, Ubuntu)" >&5
-$as_echo "$as_me:   * deb:  ${GMP_DEB_NAME} (Debian, Ubuntu)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * rpm:  ${GMP_RPM_NAME} (Fedora, EPEL)" >&5
-$as_echo "$as_me:   * rpm:  ${GMP_RPM_NAME} (Fedora, EPEL)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * brew: ${GMP_BREW_NAME} (Mac OSX)" >&5
-$as_echo "$as_me:   * brew: ${GMP_BREW_NAME} (Mac OSX)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: " >&5
-$as_echo "$as_me: " >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: If ${GMP_NAME} is already installed, check that 'pkg-config' is in" >&5
-$as_echo "$as_me: If ${GMP_NAME} is already installed, check that 'pkg-config' is in" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: your PATH and PKG_CONFIG_PATH contains a ${GMP_CONFIG_NAME}.pc file." >&5
-$as_echo "$as_me: your PATH and PKG_CONFIG_PATH contains a ${GMP_CONFIG_NAME}.pc file." >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: " >&5
-$as_echo "$as_me: " >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Configuration failed because ${GMP_NAME} was not found. Try installing:" >&5
+printf "%s\n" "$as_me: Configuration failed because ${GMP_NAME} was not found. Try installing:" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * deb:  ${GMP_DEB_NAME} (Debian, Ubuntu)" >&5
+printf "%s\n" "$as_me:   * deb:  ${GMP_DEB_NAME} (Debian, Ubuntu)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * rpm:  ${GMP_RPM_NAME} (Fedora, EPEL)" >&5
+printf "%s\n" "$as_me:   * rpm:  ${GMP_RPM_NAME} (Fedora, EPEL)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * brew: ${GMP_BREW_NAME} (Mac OSX)" >&5
+printf "%s\n" "$as_me:   * brew: ${GMP_BREW_NAME} (Mac OSX)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: " >&5
+printf "%s\n" "$as_me: " >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: If ${GMP_NAME} is already installed, check that 'pkg-config' is in" >&5
+printf "%s\n" "$as_me: If ${GMP_NAME} is already installed, check that 'pkg-config' is in" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: your PATH and PKG_CONFIG_PATH contains a ${GMP_CONFIG_NAME}.pc file." >&5
+printf "%s\n" "$as_me: your PATH and PKG_CONFIG_PATH contains a ${GMP_CONFIG_NAME}.pc file." >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: " >&5
+printf "%s\n" "$as_me: " >&6;}
   as_fn_error $? "ERROR: Installation failed" "$LINENO" 5
 fi
 
@@ -1879,8 +1926,8 @@ rm -f gmp_test errors.txt gmp_test.cpp
 
 # Verify MFPR settings work
 ## display message
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if ${MPFR_NAME} compiles" >&5
-$as_echo_n "checking if ${MPFR_NAME} compiles... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if ${MPFR_NAME} compiles" >&5
+printf %s "checking if ${MPFR_NAME} compiles... " >&6; }
 
 ## try compiling file with settings
 cat > mpfr_test.cpp <<_EOCONF
@@ -1897,32 +1944,32 @@ _EOCONF
 ${CXX} ${CPPFLAGS} -o mpfr_test mpfr_test.cpp ${LIBS} 2> errors.txt
 if test `echo $?` -ne 0 ; then
   mpfr_ok=no
-  { $as_echo "$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; }
 else
   mpfr_ok=yes
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; }
 fi
 
 ## throw error if needed
 if test x"${mpfr_ok}" == x"no"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: Configuration failed because ${MPFR_NAME} was not found. Try installing:" >&5
-$as_echo "$as_me: Configuration failed because ${MPFR_NAME} was not found. Try installing:" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * deb:  ${MPFR_DEB_NAME} (Debian, Ubuntu)" >&5
-$as_echo "$as_me:   * deb:  ${MPFR_DEB_NAME} (Debian, Ubuntu)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * rpm:  ${MPFR_RPM_NAME} (Fedora, EPEL)" >&5
-$as_echo "$as_me:   * rpm:  ${MPFR_RPM_NAME} (Fedora, EPEL)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}:   * brew: ${MPFR_BREW_NAME} (Mac OSX)" >&5
-$as_echo "$as_me:   * brew: ${MPFR_BREW_NAME} (Mac OSX)" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: " >&5
-$as_echo "$as_me: " >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: If ${MPFR_NAME} is already installed, check that 'pkg-config' is in" >&5
-$as_echo "$as_me: If ${MPFR_NAME} is already installed, check that 'pkg-config' is in" >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: your PATH and PKG_CONFIG_PATH contains a ${MPFR_CONFIG_NAME}.pc file." >&5
-$as_echo "$as_me: your PATH and PKG_CONFIG_PATH contains a ${MPFR_CONFIG_NAME}.pc file." >&6;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: " >&5
-$as_echo "$as_me: " >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: Configuration failed because ${MPFR_NAME} was not found. Try installing:" >&5
+printf "%s\n" "$as_me: Configuration failed because ${MPFR_NAME} was not found. Try installing:" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * deb:  ${MPFR_DEB_NAME} (Debian, Ubuntu)" >&5
+printf "%s\n" "$as_me:   * deb:  ${MPFR_DEB_NAME} (Debian, Ubuntu)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * rpm:  ${MPFR_RPM_NAME} (Fedora, EPEL)" >&5
+printf "%s\n" "$as_me:   * rpm:  ${MPFR_RPM_NAME} (Fedora, EPEL)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}:   * brew: ${MPFR_BREW_NAME} (Mac OSX)" >&5
+printf "%s\n" "$as_me:   * brew: ${MPFR_BREW_NAME} (Mac OSX)" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: " >&5
+printf "%s\n" "$as_me: " >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: If ${MPFR_NAME} is already installed, check that 'pkg-config' is in" >&5
+printf "%s\n" "$as_me: If ${MPFR_NAME} is already installed, check that 'pkg-config' is in" >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: your PATH and PKG_CONFIG_PATH contains a ${MPFR_CONFIG_NAME}.pc file." >&5
+printf "%s\n" "$as_me: your PATH and PKG_CONFIG_PATH contains a ${MPFR_CONFIG_NAME}.pc file." >&6;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: " >&5
+printf "%s\n" "$as_me: " >&6;}
   as_fn_error $? "ERROR: Installation failed" "$LINENO" 5
 fi
 
@@ -1939,8 +1986,8 @@ ac_config_files="$ac_config_files src/Makevars"
 
 
 # print message indicating success
-{ $as_echo "$as_me:${as_lineno-$LINENO}: configuration successful!" >&5
-$as_echo "$as_me: configuration successful!" >&6;}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: configuration successful!" >&5
+printf "%s\n" "$as_me: configuration successful!" >&6;}
 
 ## finish
 cat >confcache <<\_ACEOF
@@ -1970,8 +2017,8 @@ _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) ;; #(
@@ -2001,15 +2048,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      /^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
@@ -2023,8 +2070,8 @@ $as_echo "$as_me: updating cache $cache_file" >&6;}
       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
@@ -2077,7 +2124,7 @@ 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"
@@ -2093,8 +2140,8 @@ 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
 #! $SHELL
@@ -2117,14 +2164,16 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
 
 # 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 ;; #(
@@ -2134,46 +2183,46 @@ 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=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -2182,13 +2231,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 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 #((
@@ -2197,8 +2239,12 @@ 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
 
@@ -2210,30 +2256,10 @@ 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]
@@ -2246,13 +2272,14 @@ 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.
@@ -2279,18 +2306,20 @@ 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
@@ -2302,12 +2331,13 @@ 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 $? -eq 1`
@@ -2338,7 +2368,7 @@ as_me=`$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 '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -2360,6 +2390,10 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTERS
 as_cr_digits='0123456789'
 as_cr_alnum=$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*)
@@ -2373,6 +2407,12 @@ 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
@@ -2414,7 +2454,7 @@ 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"
@@ -2423,7 +2463,7 @@ $as_expr X"$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\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -2486,7 +2526,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by surveyvoi $as_me see.DESCRIPTION, 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
@@ -2535,14 +2575,16 @@ $config_files
 Report bugs to <https://github.com/prioritizr/surveyvoi/issues>."
 
 _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="\\
 surveyvoi config.status see.DESCRIPTION
-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."
 
@@ -2579,21 +2621,21 @@ 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" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
   | -silent | --silent | --silen | --sile | --sil | --si | --s)
     ac_cs_silent=: ;;
@@ -2621,7 +2663,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 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 "\$@"
@@ -2635,7 +2677,7 @@ 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
@@ -2660,7 +2702,7 @@ 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
@@ -2888,7 +2930,7 @@ 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
 
@@ -2896,17 +2938,17 @@ 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
@@ -2923,7 +2965,7 @@ $as_expr X"$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
@@ -2947,9 +2989,9 @@ $as_echo X"$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/ ;;
@@ -3002,8 +3044,8 @@ 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='
@@ -3045,9 +3087,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { 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 "$ac_tmp/stdin"
@@ -3094,7 +3136,8 @@ if test "$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
 
+
diff --git a/cran-comments.md b/cran-comments.md
index 91eb495..1274c67 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,6 +1,6 @@
 Dear CRAN volunteers,
 
-Thank you very much for reviewing this submission. I recognize that there were many issues with the previous submission of this package (back in May 2021), and I apologize for my carelessness. I am extremely grateful to CRAN volunteers for providing advice on addressing these issues. I have verified that the package passes CRAN package checks on both the Win-Builder and macOS platforms, along with several other environments using GitHub Actions and Docker (see Test environments below). I have also aimed to verify that the system requirements for this package are available on CRAN's check servers, and provide links to relevant files/documentation that indicate the presence of these requirements on CRAN's servers (see System requirements below).
+Thank you very much for reviewing this submission. I recognize that there were many issues with the previous submission of this package (back in May 2021), and I apologize for my carelessness. I am extremely grateful to CRAN volunteers for providing such detailed advice on addressing these issues. I have verified that the package passes CRAN package checks on both the Win-Builder and macOS platforms, along with several other environments using GitHub Actions and Docker (see Test environments below). I have also aimed to verify that the system requirements for this package are available on CRAN's check servers, and provide details indicating the presence of these requirements on CRAN's servers (see System requirements below).
 
 Cheers,
 
@@ -22,6 +22,10 @@ Jeff
 
 # Notes
 
+* Requires non-standard build of gmp (undeclared and unchecked).
+
+  **This message appears when testing the package on WinBuilder. My understanding is that this message is displayed because the package uses the RWinLib infrastructure to obtain a version of gmp with the C++ bindings available (see https://github.com/rwinlib/gmp). Although the standard Windows Rtools build-chain does provide such C++ bindings (see https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD), WinBuilder has a manually installed version of gmp -- which overrides the version of gmp distributed with Rtools -- that does not provide the C++ bindings (indicated by https://win-builder.r-project.org/GPLcompliance/). As such, a non-standard build of gmp is used when compiling the package on WinBuilder (i.e., the gmp build obtained from the RWinLib infrastructure).**
+
 * checking installed package size ... NOTE
   installed size is 14.4Mb
   sub-directories of 1Mb or more:
@@ -36,21 +40,27 @@ Jeff
 
 # System requirements
 
-The package has system requirements. Some of these requirements are mandatory -- and are required for successful installation -- and others are optional. To help ensure that these requirements are available on CRAN systems, I have checked that they are available under the Windows and macOS toolchains (i.e., [RTools](https://cran.r-project.org/bin/windows/Rtools/rtools40.html) and [macOS recipes](https://github.com/R-macos/recipes), respectively) and the rcheckserver Debian meta-package used by CRAN's Debian server. Below, I have provided information on whether each requirement is optional or mandatory, as well as a link indicating the requirement is available on CRAN's Debian, Windows, and macOS systems.
+The package has system requirements. Some of these requirements are mandatory -- and are required for successful installation -- and others are optional. To ensure that all mandatory requirements are available on CRAN systems, I have checked the software installed on CRAN's various systems. Briefly, this information was obtained from the [Windows](https://github.com/r-windows/rtools-packages) and [macOS](https://github.com/R-macos/recipes) toolchains; the [rcheckserver Debian meta-package](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages), and correspondence with CRAN volunteers.
+
+Below, I have provided a markdown table detailing whether each system requirement is optional or mandatory under various operating systems. I have also included details and URLs verifying the availability of mandatory system requirements on CRAN's systems.
+
+| Software | Debian | Fedora | Windows | macOS |
+|:--------|:---------:|:--------:|:------:|:------:|
+| JAGS (>= 4.3.0) | Optional | Optional |Optional | Optional |
+| fftw3 (>= 3.3) | Mandatory (1) | Mandatory (1) | Mandatory (1) | Mandatory (1) |
+| gmp (>= 6.2.1) | Mandatory (2) | Mandatory (3) | [Mandatory](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/gmp) |
+| gmpxx (>= 6.2.1) | [Mandatory (2)](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | Mandatory (3) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/gmp) |
+| mpfr (>= 4.1.0) | [Mandatory (4)](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | Mandatory (4) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-mpfr/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/mpfr) |
+| autoconf (>= 2.69) | Optional | Optional | Optional | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/autoconf) |
+| automake (>= 1.16.5) | Optional | Optional | Optional | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/automake) |
+
+(1) This requirement is available on all of CRAN's servers because the PoissonBinomial R package relies on the fftw3 library as a system requirement and this package passes checks on all systems (see https://cran.r-project.org/package=PoissonBinomial).
 
-| Software | Debian | Windows | macOS |
-|:--------|:---------:|:--------:|:------:|
-| JAGS (>= 4.3.0) | Optional |Optional | Optional |
-| gmp (>= 6.2.1) | [Mandatory (1)](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/gmp) |
-| gmpxx (>= 6.2.1) | [Mandatory (1)](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-gmp/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/gmp) |
-| mpfr (>= 4.1.0) | [Mandatory (2)](https://statmath.wu.ac.at/AASC/debian/dists/stable/main/binary-amd64/Packages) | [Mandatory](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-mpfr/PKGBUILD) | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/mpfr) |
-| pkgconfig (>= 0.29.2) | Optional | [Optional](https://github.com/r-windows/rtools-packages/blob/master/mingw-w64-mpfr/PKGBUILD) | [Optional](https://github.com/R-macos/recipes/blob/master/recipes/pkgconfig) |
-| autoconf (>= 2.69) | Optional | Optional | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/autoconf) |
-| automake (>= 1.16.5) | Optinal | Optional | [Mandatory](https://github.com/R-macos/recipes/blob/master/recipes/automake) |
+(2) This requirement is available on CRAN's Debian server(s) because it is available via the Debian libgmp3-dev package, and this package is a dependency of the rcheckserver Debian meta-package.
 
-(1) This system requirement is available on CRAN's Debian server because it is available via the Debian libgmp3-dev package, and this package is a dependency of the rcheckserver Debian meta-package.
+(3) This requirement is available on CRAN's Fedora server(s) because Prof. Brian Ripely checked that that the gmp-devel RPM is available on each machine (i.e., https://fedora.pkgs.org/35/fedora-x86_64/gmp-devel-6.2.0-7.fc35.i686.rpm.html) (Prof Brian Ripley, personal communication, August 25, 2022).
 
-(2) This requirement is available on CRAN's Debian server because it is available via the Debian libmpfr-dev package, and this package is a dependency of the rcheckserver Debian meta-package.
+(4) This requirement is available on all of CRAN's servers because the Rmpfr R package relies on the mpfr library as a system requirement and this package passes checks on all systems (see https://cran.r-project.org/package=Rmpfr).
 
 # Downstream dependencies
 
@@ -75,4 +85,4 @@ from the published 'recipes' at https://github.com/R-macos/recipes).
 
 * Please always add all authors, contributors and copyright holders in the Authors@R field with the appropriate roles. e.g.: Free Software Foundation, Inc. Please explain in the submission comments what you did about this issue.
 
-  **This comment was raised on a previous submission wherein the Free Software Foundation was listed as a copyright holder. I had previously listed the foundation as a copyright holder because the package contained a header file copied from the gmp library. Since the package now uses the RWinLib infrastructure to handle gmpxx dependencies (https://github.com/rwinlib/gmp), the header file has been removed from package and the Free Software Foundation removed as a copyright holder.**
+  **This comment was raised on a previous submission wherein the Free Software Foundation was listed as a copyright holder. Previously, the foundation was listed a copyright holder because the package contained a header file from the gmp library to help ensure that dependencies were available. Since the dependencies should now all be available on CRAN's systems, the header file has been removed and, as such, the foundation has been removed as a copyright holder.**
diff --git a/docs/404.html b/docs/404.html
index 2feb9c6..aa24777 100644
--- a/docs/404.html
+++ b/docs/404.html
@@ -32,7 +32,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="https://github.com/prioritizr/surveyvoi/index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -91,7 +91,7 @@ <h1>Page not found (404)</h1>
 
 <div class="pkgdown">
   <p></p>
-<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer>
diff --git a/docs/articles/index.html b/docs/articles/index.html
index b11fa9c..41a9f14 100644
--- a/docs/articles/index.html
+++ b/docs/articles/index.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -65,7 +65,7 @@ <h3>All vignettes</h3>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/articles/surveyvoi.html b/docs/articles/surveyvoi.html
index 8197157..1a181d6 100644
--- a/docs/articles/surveyvoi.html
+++ b/docs/articles/surveyvoi.html
@@ -33,7 +33,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -72,7 +72,7 @@
       <h1 data-toc-skip>surveyvoi: Survey Value of Information</h1>
                         <h4 data-toc-skip class="author">Jeffrey O. Hanson</h4>
             
-            <h4 data-toc-skip class="date">2022-07-23</h4>
+            <h4 data-toc-skip class="date">2022-08-26</h4>
       
       <small class="dont-index">Source: <a href="https://github.com/prioritizr/surveyvoi/blob/HEAD/vignettes/surveyvoi.Rmd"><code>vignettes/surveyvoi.Rmd</code></a></small>
       <div class="hidden name"><code>surveyvoi.Rmd</code></div>
@@ -151,8 +151,7 @@ <h2 id="simulate-data">Simulate data<a class="anchor" aria-label="anchor" href="
 <span><span class="co">## <span style="color: #BCBCBC;"> 8</span>  (0.590849 0.748232)</span></span>
 <span><span class="co">## <span style="color: #BCBCBC;"> 9</span>  (0.373888 0.150227)</span></span>
 <span><span class="co">## <span style="color: #BCBCBC;">10</span>  (0.141298 0.307626)</span></span>
-<span><span class="co">## <span style="color: #949494;"># … with 20 more rows</span></span></span>
-<span><span class="co">## <span style="color: #949494;"># ℹ Use `print(n = ...)` to see more rows</span></span></span></code></pre>
+<span><span class="co">## <span style="color: #949494;"># … with 20 more rows</span></span></span></code></pre>
 <div class="sourceCode" id="cb4"><pre class="downlit sourceCode r">
 <code class="sourceCode R"><span><span class="co"># plot the spatial location of the sites</span></span>
 <span><span class="fu"><a href="https://ggplot2.tidyverse.org/reference/ggplot.html" class="external-link">ggplot</a></span><span class="op">(</span><span class="va">site_data</span><span class="op">)</span> <span class="op">+</span></span>
@@ -304,8 +303,7 @@ <h2 id="modeling-probability-of-occupancy">Modeling probability of occupancy<a c
 <span><span class="co">## <span style="color: #BCBCBC;"> 8</span> 0.565<span style="text-decoration: underline;">847</span></span></span>
 <span><span class="co">## <span style="color: #BCBCBC;"> 9</span> 0.452<span style="text-decoration: underline;">463</span></span></span>
 <span><span class="co">## <span style="color: #BCBCBC;">10</span> 0.565<span style="text-decoration: underline;">847</span></span></span>
-<span><span class="co">## <span style="color: #949494;"># … with 20 more rows</span></span></span>
-<span><span class="co">## <span style="color: #949494;"># ℹ Use `print(n = ...)` to see more rows</span></span></span></code></pre>
+<span><span class="co">## <span style="color: #949494;"># … with 20 more rows</span></span></span></code></pre>
 <div class="sourceCode" id="cb18"><pre class="downlit sourceCode r">
 <code class="sourceCode R"><span><span class="va">site_data</span><span class="op">$</span><span class="va">p1</span> <span class="op">&lt;-</span> <span class="va">xgb_predictions</span><span class="op">$</span><span class="va">f1</span></span></code></pre></div>
 <div class="sourceCode" id="cb19"><pre class="downlit sourceCode r">
@@ -689,7 +687,7 @@ <h2 class="unnumbered" id="references">References<a class="anchor" aria-label="a
 
 <div class="pkgdown">
   <p></p>
-<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer>
diff --git a/docs/authors.html b/docs/authors.html
index e3dfb0c..195bbef 100644
--- a/docs/authors.html
+++ b/docs/authors.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -78,13 +78,13 @@ <h1 id="citation">Citation</h1>
 
     <p>Hanson JO, Chadès I, Hudgins EJ, Bennett JR (2022).
 <em>surveyvoi: Survey Value of Information</em>.
-R package version 1.0.3.11, <a href="https://prioritizr.github.io/surveyvoi/" class="external-link">https://prioritizr.github.io/surveyvoi/</a>. 
+R package version 1.0.4, <a href="https://prioritizr.github.io/surveyvoi/" class="external-link">https://prioritizr.github.io/surveyvoi/</a>. 
 </p>
     <pre>@Manual{,
   title = {surveyvoi: Survey Value of Information},
   author = {Jeffrey O Hanson and Iadine Chadès and Emma J Hudgins and Joseph R Bennett},
   year = {2022},
-  note = {R package version 1.0.3.11},
+  note = {R package version 1.0.4},
   url = {https://prioritizr.github.io/surveyvoi/},
 }</pre>
 
@@ -99,7 +99,7 @@ <h1 id="citation">Citation</h1>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/index.html b/docs/index.html
index c6b3b54..7e17d03 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -46,7 +46,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -126,7 +126,7 @@ <h4 id="macos">macOS<a class="anchor" aria-label="anchor" href="#macos"></a>
 <h2 id="citation">Citation<a class="anchor" aria-label="anchor" href="#citation"></a>
 </h2>
 <p>Please cite the <em>surveyvoi R</em> package when using it in publications. To cite the developmental version, please use:</p>
-<blockquote><p>Hanson JO, Chadès I, Hudgins EJ, Bennett J (2022). surveyvoi: Survey Value of Information. R package version 1.0.3.10. Available at <a href="https://github.com/prioritizr/surveyvoi" class="uri">https://github.com/prioritizr/surveyvoi</a>.</p></blockquote>
+<blockquote><p>Hanson JO, Chadès I, Hudgins EJ, Bennett J (2022). surveyvoi: Survey Value of Information. R package version 1.0.4. Available at <a href="https://github.com/prioritizr/surveyvoi" class="uri">https://github.com/prioritizr/surveyvoi</a>.</p></blockquote>
 </div>
 <div class="section level2">
 <h2 id="usage">Usage<a class="anchor" aria-label="anchor" href="#usage"></a>
@@ -351,7 +351,7 @@ <h2 data-toc-skip>Dev status</h2>
 
 <div class="pkgdown">
   <p></p>
-<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+<p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer>
diff --git a/docs/news/index.html b/docs/news/index.html
index 75fc7de..2cc22c9 100644
--- a/docs/news/index.html
+++ b/docs/news/index.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -50,6 +50,14 @@ <h1 data-toc-skip>Changelog <small></small></h1>
       <small>Source: <a href="https://github.com/prioritizr/surveyvoi/blob/HEAD/NEWS.md"><code>NEWS.md</code></a></small>
     </div>
 
+    <div class="section level2">
+<h2 class="page-header" data-toc-text="1.0.4" id="surveyvoi-104">surveyvoi 1.0.4<a class="anchor" aria-label="anchor" href="#surveyvoi-104"></a></h2>
+<ul><li>CRAN release.</li></ul></div>
+    <div class="section level2">
+<h2 class="page-header" data-toc-text="1.0.3.12" id="surveyvoi-10312">surveyvoi 1.0.3.12<a class="anchor" aria-label="anchor" href="#surveyvoi-10312"></a></h2>
+<ul><li>Update CRAN comments document and remove pkg-config from system requirements.</li>
+<li>Fix compiler warning thrown during installation.</li>
+</ul></div>
     <div class="section level2">
 <h2 class="page-header" data-toc-text="1.0.3.11" id="surveyvoi-10311">surveyvoi 1.0.3.11<a class="anchor" aria-label="anchor" href="#surveyvoi-10311"></a></h2>
 <ul><li>Update <code><a href="../reference/simulate_site_data.html">simulate_site_data()</a></code> function to remove RandomFields package as a dependency.</li></ul></div>
@@ -144,7 +152,7 @@ <h2 class="page-header" data-toc-text="0.0.1" id="surveyvoi-001">surveyvoi 0.0.1
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
index 90bbc49..0b3ef77 100644
--- a/docs/pkgdown.yml
+++ b/docs/pkgdown.yml
@@ -1,9 +1,9 @@
 pandoc: '2.13'
-pkgdown: 2.0.5
+pkgdown: 2.0.6
 pkgdown_sha: ~
 articles:
   surveyvoi: surveyvoi.html
-last_built: 2022-07-23T07:51Z
+last_built: 2022-08-26T13:34Z
 urls:
   reference: https://github.com/prioritizr/surveyvoi/reference
   article: https://github.com/prioritizr/surveyvoi/articles
diff --git a/docs/reference/approx_evdsi.html b/docs/reference/approx_evdsi.html
index f699f2f..ea4bb7b 100644
--- a/docs/reference/approx_evdsi.html
+++ b/docs/reference/approx_evdsi.html
@@ -21,7 +21,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -308,7 +308,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -357,7 +356,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/approx_near_optimal_survey_scheme.html b/docs/reference/approx_near_optimal_survey_scheme.html
index 7214516..1a652c7 100644
--- a/docs/reference/approx_near_optimal_survey_scheme.html
+++ b/docs/reference/approx_near_optimal_survey_scheme.html
@@ -20,7 +20,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -368,7 +368,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -420,7 +419,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/approx_optimal_survey_scheme.html b/docs/reference/approx_optimal_survey_scheme.html
index b4947b0..e335f6e 100644
--- a/docs/reference/approx_optimal_survey_scheme.html
+++ b/docs/reference/approx_optimal_survey_scheme.html
@@ -19,7 +19,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -347,7 +347,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -425,7 +424,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/env_div_survey_scheme.html b/docs/reference/env_div_survey_scheme.html
index e3df34a..0c33404 100644
--- a/docs/reference/env_div_survey_scheme.html
+++ b/docs/reference/env_div_survey_scheme.html
@@ -18,7 +18,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -222,7 +222,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/evdci.html b/docs/reference/evdci.html
index 30b931d..44e2b6a 100644
--- a/docs/reference/evdci.html
+++ b/docs/reference/evdci.html
@@ -20,7 +20,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -254,7 +254,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -297,7 +296,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/evdsi.html b/docs/reference/evdsi.html
index 8cca7a8..ab8a068 100644
--- a/docs/reference/evdsi.html
+++ b/docs/reference/evdsi.html
@@ -20,7 +20,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -284,7 +284,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -333,7 +332,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/feasible_survey_schemes.html b/docs/reference/feasible_survey_schemes.html
index b1a1c58..8ed4ebf 100644
--- a/docs/reference/feasible_survey_schemes.html
+++ b/docs/reference/feasible_survey_schemes.html
@@ -18,7 +18,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -188,7 +188,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/fit_hglm_occupancy_models.html b/docs/reference/fit_hglm_occupancy_models.html
index d087000..0c3a1e1 100644
--- a/docs/reference/fit_hglm_occupancy_models.html
+++ b/docs/reference/fit_hglm_occupancy_models.html
@@ -23,7 +23,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -739,7 +739,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;"> 9</span> 1.72<span style="color: #949494;">e</span><span style="color: #BB0000;">- 6</span> 0.999      </span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">10</span> 8.00<span style="color: #949494;">e</span><span style="color: #BB0000;">- 3</span> 0.953      </span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 20 more rows</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `print(n = ...)` to see more rows</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># print model performance</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="va">results</span><span class="op">$</span><span class="va">performance</span>, width <span class="op">=</span> <span class="cn">Inf</span><span class="op">)</span></span></span>
@@ -775,7 +774,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/fit_xgb_occupancy_models.html b/docs/reference/fit_xgb_occupancy_models.html
index 6d14db0..4a2fd78 100644
--- a/docs/reference/fit_xgb_occupancy_models.html
+++ b/docs/reference/fit_xgb_occupancy_models.html
@@ -19,7 +19,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -371,7 +371,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;"> 9</span> 0.450 0.547</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">10</span> 0.459 0.549</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 20 more rows</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `print(n = ...)` to see more rows</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># print model performance</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span class="va">results</span><span class="op">$</span><span class="va">performance</span>, width <span class="op">=</span> <span class="cn">Inf</span><span class="op">)</span></span></span>
@@ -407,7 +406,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/geo_cov_survey_scheme.html b/docs/reference/geo_cov_survey_scheme.html
index dcf7a50..de367d5 100644
--- a/docs/reference/geo_cov_survey_scheme.html
+++ b/docs/reference/geo_cov_survey_scheme.html
@@ -18,7 +18,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -203,7 +203,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/index.html b/docs/reference/index.html
index 7a7fb01..a462010 100644
--- a/docs/reference/index.html
+++ b/docs/reference/index.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.11</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -166,7 +166,7 @@ <h2 id="miscellaneous-function">Miscellaneous function <a href="#miscellaneous-f
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/n_states.html b/docs/reference/n_states.html
index 93e5102..a71cbec 100644
--- a/docs/reference/n_states.html
+++ b/docs/reference/n_states.html
@@ -18,7 +18,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -98,7 +98,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/optimal_survey_scheme.html b/docs/reference/optimal_survey_scheme.html
index 2ee46f4..b0fd569 100644
--- a/docs/reference/optimal_survey_scheme.html
+++ b/docs/reference/optimal_survey_scheme.html
@@ -19,7 +19,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -322,7 +322,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -376,7 +375,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/prior_probability_matrix.html b/docs/reference/prior_probability_matrix.html
index 07860c2..524ef98 100644
--- a/docs/reference/prior_probability_matrix.html
+++ b/docs/reference/prior_probability_matrix.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -181,7 +181,6 @@ <h2>Examples</h2>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">6</span>     3.35    48.9     1 0.667 0.333     3     3     3 -<span style="color: #BB0000;">1.18</span>   0.557 0.896 0.998</span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># … with 2 more variables: p3 &lt;dbl&gt;, geometry &lt;POINT&gt;, and abbreviated variable</span></span>
 <span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;">#   names ¹​survey_cost, ²​management_cost</span></span>
-<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #949494;"># ℹ Use `colnames()` to see all variable names</span></span>
 <span class="r-in"><span></span></span>
 <span class="r-in"><span><span class="co"># load example feature data</span></span></span>
 <span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">sim_features</span><span class="op">)</span></span></span>
@@ -221,7 +220,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/relative_site_richness_scores.html b/docs/reference/relative_site_richness_scores.html
index 74373d6..59a273d 100644
--- a/docs/reference/relative_site_richness_scores.html
+++ b/docs/reference/relative_site_richness_scores.html
@@ -20,7 +20,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -161,7 +161,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/relative_site_uncertainty_scores.html b/docs/reference/relative_site_uncertainty_scores.html
index 39dea3e..120eee2 100644
--- a/docs/reference/relative_site_uncertainty_scores.html
+++ b/docs/reference/relative_site_uncertainty_scores.html
@@ -21,7 +21,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -167,7 +167,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/sim_data.html b/docs/reference/sim_data.html
index fd0f921..8441734 100644
--- a/docs/reference/sim_data.html
+++ b/docs/reference/sim_data.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -169,7 +169,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/simulate_feature_data.html b/docs/reference/simulate_feature_data.html
index e4b8dc0..3b43164 100644
--- a/docs/reference/simulate_feature_data.html
+++ b/docs/reference/simulate_feature_data.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -157,7 +157,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/simulate_site_data.html b/docs/reference/simulate_site_data.html
index 41a42e3..213107f 100644
--- a/docs/reference/simulate_site_data.html
+++ b/docs/reference/simulate_site_data.html
@@ -17,7 +17,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -225,7 +225,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/surveyvoi.html b/docs/reference/surveyvoi.html
index 3df77a8..522e660 100644
--- a/docs/reference/surveyvoi.html
+++ b/docs/reference/surveyvoi.html
@@ -28,7 +28,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -106,7 +106,7 @@ <h2>See also</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/docs/reference/weighted_survey_scheme.html b/docs/reference/weighted_survey_scheme.html
index 4e53a93..17c64bd 100644
--- a/docs/reference/weighted_survey_scheme.html
+++ b/docs/reference/weighted_survey_scheme.html
@@ -18,7 +18,7 @@
       </button>
       <span class="navbar-brand">
         <a class="navbar-link" href="../index.html">surveyvoi</a>
-        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.3.10</span>
+        <span class="version label label-default" data-toggle="tooltip" data-placement="bottom" title="">1.0.4</span>
       </span>
     </div>
 
@@ -207,7 +207,7 @@ <h2>Examples</h2>
 </div>
 
 <div class="pkgdown">
-  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.5.</p>
+  <p></p><p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.0.6.</p>
 </div>
 
       </footer></div>
diff --git a/inst/doc/surveyvoi.html b/inst/doc/surveyvoi.html
index b4251ff..1c66a1c 100644
--- a/inst/doc/surveyvoi.html
+++ b/inst/doc/surveyvoi.html
@@ -12,7 +12,7 @@
 
 <meta name="author" content="Jeffrey O. Hanson" />
 
-<meta name="date" content="2022-07-23" />
+<meta name="date" content="2022-08-26" />
 
 <title>surveyvoi: Survey Value of Information</title>
 
@@ -110,13 +110,20 @@
   for (var i = 0; i < sheets.length; i++) {
     if (sheets[i].ownerNode.dataset["origin"] !== "pandoc") continue;
     try { var rules = sheets[i].cssRules; } catch (e) { continue; }
-    for (var j = 0; j < rules.length; j++) {
+    var j = 0;
+    while (j < rules.length) {
       var rule = rules[j];
       // check if there is a div.sourceCode rule
-      if (rule.type !== rule.STYLE_RULE || rule.selectorText !== "div.sourceCode") continue;
+      if (rule.type !== rule.STYLE_RULE || rule.selectorText !== "div.sourceCode") {
+        j++;
+        continue;
+      }
       var style = rule.style.cssText;
       // check if color or background-color is set
-      if (rule.style.color === '' && rule.style.backgroundColor === '') continue;
+      if (rule.style.color === '' && rule.style.backgroundColor === '') {
+        j++;
+        continue;
+      }
       // replace div.sourceCode by a pre.sourceCode rule
       sheets[i].deleteRule(j);
       sheets[i].insertRule('pre.sourceCode{' + style + '}', j);
@@ -164,7 +171,7 @@
 
 <h1 class="title toc-ignore">surveyvoi: Survey Value of Information</h1>
 <h4 class="author">Jeffrey O. Hanson</h4>
-<h4 class="date">2022-07-23</h4>
+<h4 class="date">2022-08-26</h4>
 
 
 <div id="TOC">
@@ -247,8 +254,7 @@ <h2>Simulate data</h2>
 ##  8  (0.590849 0.748232)
 ##  9  (0.373888 0.150227)
 ## 10  (0.141298 0.307626)
-## # … with 20 more rows
-## # ℹ Use `print(n = ...)` to see more rows</code></pre>
+## # … with 20 more rows</code></pre>
 <div class="sourceCode" id="cb4"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="co"># plot the spatial location of the sites</span></span>
 <span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="fu">ggplot</span>(site_data) <span class="sc">+</span></span>
 <span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a>  <span class="fu">geom_sf</span>() <span class="sc">+</span></span>
@@ -389,8 +395,7 @@ <h2>Modeling probability of occupancy</h2>
 ##  8 0.565847
 ##  9 0.452463
 ## 10 0.565847
-## # … with 20 more rows
-## # ℹ Use `print(n = ...)` to see more rows</code></pre>
+## # … with 20 more rows</code></pre>
 <div class="sourceCode" id="cb18"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a>site_data<span class="sc">$</span>p1 <span class="ot">&lt;-</span> xgb_predictions<span class="sc">$</span>f1</span></code></pre></div>
 <div class="sourceCode" id="cb19"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb19-1"><a href="#cb19-1" aria-hidden="true" tabindex="-1"></a><span class="co"># plot site-level estimated occupancy probabilities</span></span>
 <span id="cb19-2"><a href="#cb19-2" aria-hidden="true" tabindex="-1"></a>site_data <span class="sc">%&gt;%</span></span>
diff --git a/src/rcpp_model_performance.cpp b/src/rcpp_model_performance.cpp
index ff8d5e2..8cc1a22 100644
--- a/src/rcpp_model_performance.cpp
+++ b/src/rcpp_model_performance.cpp
@@ -24,11 +24,11 @@ void model_sensitivity_and_specificity(
   double total_negative = static_cast<double>(w.sum()) - total_positive;
   double true_positive = static_cast<double>(
     (w.array() *
-    ((yhat.array() >= 0.5f) * (y.array() >= 0.5f)).cast<float>()).sum()
+    ((yhat.array() >= 0.5f) && (y.array() >= 0.5f)).cast<float>()).sum()
   );
   double true_negative = static_cast<double>(
     (w.array() *
-     ((yhat.array() < 0.5f) * (y.array() < 0.5f)).cast<float>()).sum()
+     ((yhat.array() < 0.5f) && (y.array() < 0.5f)).cast<float>()).sum()
   );
   double false_negative = total_positive - true_positive;
   double false_positive = total_negative - true_negative;
diff --git a/tests/testthat/helper_skip_functions.R b/tests/testthat/helper_skip_functions.R
new file mode 100644
index 0000000..e25f039
--- /dev/null
+++ b/tests/testthat/helper_skip_functions.R
@@ -0,0 +1,8 @@
+skip_if_parallel_processing_not_available <- function() {
+  skip_if(
+    (!requireNamespace("surveyvoi", quietly = TRUE) &&
+      !identical(.Platform$OS.type, "unix")) ||
+    (!"surveyvoi" %in% rownames(installed.packages())),
+    message = "parallel processing not available"
+  )
+}
diff --git a/tests/testthat/test_approx_near_optimal_survey_scheme.R b/tests/testthat/test_approx_near_optimal_survey_scheme.R
index 5a52b93..83a50b8 100644
--- a/tests/testthat/test_approx_near_optimal_survey_scheme.R
+++ b/tests/testthat/test_approx_near_optimal_survey_scheme.R
@@ -217,9 +217,7 @@ test_that("consistent results", {
 test_that("consistent results (multiple threads)", {
   skip_on_cran()
   skip_on_os("windows")
-  # skip if using PSOCK cluster and package not installed
-  skip_if(!requireNamespace("surveyvoi") &&
-          !identical(.Platform$OS.type, "unix"))
+  skip_if_parallel_processing_not_available()
   # seeds
   set.seed(505)
   # data
diff --git a/tests/testthat/test_cluster.R b/tests/testthat/test_cluster.R
index 4bad4e7..e9c1594 100644
--- a/tests/testthat/test_cluster.R
+++ b/tests/testthat/test_cluster.R
@@ -3,6 +3,7 @@ context("cluster")
 test_that("FORK", {
   skip_on_cran()
   skip_on_os("windows")
+  skip_if_parallel_processing_not_available()
   # data
   x <- seq_len(3)
   f <- function(z) {
@@ -21,6 +22,7 @@ test_that("FORK", {
 
 test_that("PSOCK", {
   skip_on_cran()
+  skip_if_parallel_processing_not_available()
   # data
   x <- seq_len(3)
   f <- function(z) {
diff --git a/tests/testthat/test_fit_hglm_occupancy_models.R b/tests/testthat/test_fit_hglm_occupancy_models.R
index 5dcc740..c80c977 100644
--- a/tests/testthat/test_fit_hglm_occupancy_models.R
+++ b/tests/testthat/test_fit_hglm_occupancy_models.R
@@ -150,9 +150,7 @@ test_that("multiple species (sparse, multiple threads)", {
   skip_on_cran()
   skip_on_os("windows")
   skip_if_not(suppressWarnings(is_jags_installed()))
-  # skip if using PSOCK cluster and package not installed
-  skip_if(!requireNamespace("surveyvoi") &&
-          !identical(.Platform$OS.type, "unix"))
+  skip_if_parallel_processing_not_available()
   # data
   set.seed(123)
   n_pu <- 2000