"Fossies" - the Fresh Open Source Software Archive

Member "singular-4.2.1/configure" (9 Jun 2021, 872181 Bytes) of package /linux/misc/singular-4.2.1.tar.gz:


As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) Bash source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. See also the latest Fossies "Diffs" side-by-side code changes report for "configure": 4.2.0p3_vs_4.2.1.

    1 #! /bin/sh
    2 # Guess values for system-dependent variables and create Makefiles.
    3 # Generated by GNU Autoconf 2.69 for singular 4.2.1.
    4 #
    5 # Report bugs to <singular@mathematik.uni-kl.de>.
    6 #
    7 #
    8 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
    9 #
   10 #
   11 # This configure script is free software; the Free Software Foundation
   12 # gives unlimited permission to copy, distribute and modify it.
   13 ## -------------------- ##
   14 ## M4sh Initialization. ##
   15 ## -------------------- ##
   16 
   17 # Be more Bourne compatible
   18 DUALCASE=1; export DUALCASE # for MKS sh
   19 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   20   emulate sh
   21   NULLCMD=:
   22   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
   23   # is contrary to our usage.  Disable this feature.
   24   alias -g '${1+"$@"}'='"$@"'
   25   setopt NO_GLOB_SUBST
   26 else
   27   case `(set -o) 2>/dev/null` in #(
   28   *posix*) :
   29     set -o posix ;; #(
   30   *) :
   31      ;;
   32 esac
   33 fi
   34 
   35 
   36 as_nl='
   37 '
   38 export as_nl
   39 # Printing a long string crashes Solaris 7 /usr/bin/printf.
   40 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
   41 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
   42 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
   43 # Prefer a ksh shell builtin over an external printf program on Solaris,
   44 # but without wasting forks for bash or zsh.
   45 if test -z "$BASH_VERSION$ZSH_VERSION" \
   46     && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
   47   as_echo='print -r --'
   48   as_echo_n='print -rn --'
   49 elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   50   as_echo='printf %s\n'
   51   as_echo_n='printf %s'
   52 else
   53   if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
   54     as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
   55     as_echo_n='/usr/ucb/echo -n'
   56   else
   57     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
   58     as_echo_n_body='eval
   59       arg=$1;
   60       case $arg in #(
   61       *"$as_nl"*)
   62     expr "X$arg" : "X\\(.*\\)$as_nl";
   63     arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
   64       esac;
   65       expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
   66     '
   67     export as_echo_n_body
   68     as_echo_n='sh -c $as_echo_n_body as_echo'
   69   fi
   70   export as_echo_body
   71   as_echo='sh -c $as_echo_body as_echo'
   72 fi
   73 
   74 # The user is always right.
   75 if test "${PATH_SEPARATOR+set}" != set; then
   76   PATH_SEPARATOR=:
   77   (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
   78     (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
   79       PATH_SEPARATOR=';'
   80   }
   81 fi
   82 
   83 
   84 # IFS
   85 # We need space, tab and new line, in precisely that order.  Quoting is
   86 # there to prevent editors from complaining about space-tab.
   87 # (If _AS_PATH_WALK were called with IFS unset, it would disable word
   88 # splitting by setting IFS to empty value.)
   89 IFS=" ""    $as_nl"
   90 
   91 # Find who we are.  Look in the path if we contain no directory separator.
   92 as_myself=
   93 case $0 in #((
   94   *[\\/]* ) as_myself=$0 ;;
   95   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
   96 for as_dir in $PATH
   97 do
   98   IFS=$as_save_IFS
   99   test -z "$as_dir" && as_dir=.
  100     test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  101   done
  102 IFS=$as_save_IFS
  103 
  104      ;;
  105 esac
  106 # We did not find ourselves, most probably we were run as `sh COMMAND'
  107 # in which case we are not to be found in the path.
  108 if test "x$as_myself" = x; then
  109   as_myself=$0
  110 fi
  111 if test ! -f "$as_myself"; then
  112   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  113   exit 1
  114 fi
  115 
  116 # Unset variables that we do not need and which cause bugs (e.g. in
  117 # pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
  118 # suppresses any "Segmentation fault" message there.  '((' could
  119 # trigger a bug in pdksh 5.2.14.
  120 for as_var in BASH_ENV ENV MAIL MAILPATH
  121 do eval test x\${$as_var+set} = xset \
  122   && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
  123 done
  124 PS1='$ '
  125 PS2='> '
  126 PS4='+ '
  127 
  128 # NLS nuisances.
  129 LC_ALL=C
  130 export LC_ALL
  131 LANGUAGE=C
  132 export LANGUAGE
  133 
  134 # CDPATH.
  135 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
  136 
  137 # Use a proper internal environment variable to ensure we don't fall
  138   # into an infinite loop, continuously re-executing ourselves.
  139   if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
  140     _as_can_reexec=no; export _as_can_reexec;
  141     # We cannot yet assume a decent shell, so we have to provide a
  142 # neutralization value for shells without unset; and this also
  143 # works around shells that cannot unset nonexistent variables.
  144 # Preserve -v and -x to the replacement shell.
  145 BASH_ENV=/dev/null
  146 ENV=/dev/null
  147 (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
  148 case $- in # ((((
  149   *v*x* | *x*v* ) as_opts=-vx ;;
  150   *v* ) as_opts=-v ;;
  151   *x* ) as_opts=-x ;;
  152   * ) as_opts= ;;
  153 esac
  154 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
  155 # Admittedly, this is quite paranoid, since all the known shells bail
  156 # out after a failed `exec'.
  157 $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
  158 as_fn_exit 255
  159   fi
  160   # We don't want this to propagate to other subprocesses.
  161           { _as_can_reexec=; unset _as_can_reexec;}
  162 if test "x$CONFIG_SHELL" = x; then
  163   as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
  164   emulate sh
  165   NULLCMD=:
  166   # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  167   # is contrary to our usage.  Disable this feature.
  168   alias -g '\${1+\"\$@\"}'='\"\$@\"'
  169   setopt NO_GLOB_SUBST
  170 else
  171   case \`(set -o) 2>/dev/null\` in #(
  172   *posix*) :
  173     set -o posix ;; #(
  174   *) :
  175      ;;
  176 esac
  177 fi
  178 "
  179   as_required="as_fn_return () { (exit \$1); }
  180 as_fn_success () { as_fn_return 0; }
  181 as_fn_failure () { as_fn_return 1; }
  182 as_fn_ret_success () { return 0; }
  183 as_fn_ret_failure () { return 1; }
  184 
  185 exitcode=0
  186 as_fn_success || { exitcode=1; echo as_fn_success failed.; }
  187 as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
  188 as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
  189 as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
  190 if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
  191 
  192 else
  193   exitcode=1; echo positional parameters were not saved.
  194 fi
  195 test x\$exitcode = x0 || exit 1
  196 test -x / || exit 1"
  197   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  198   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  199   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  200   test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
  201 test \$(( 1 + 1 )) = 2 || exit 1
  202 
  203   test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
  204     ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
  205     ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
  206     ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
  207     PATH=/empty FPATH=/empty; export PATH FPATH
  208     test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
  209       || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
  210   if (eval "$as_required") 2>/dev/null; then :
  211   as_have_required=yes
  212 else
  213   as_have_required=no
  214 fi
  215   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
  216 
  217 else
  218   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
  219 as_found=false
  220 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
  221 do
  222   IFS=$as_save_IFS
  223   test -z "$as_dir" && as_dir=.
  224   as_found=:
  225   case $as_dir in #(
  226      /*)
  227        for as_base in sh bash ksh sh5; do
  228          # Try only shells that exist, to save several forks.
  229          as_shell=$as_dir/$as_base
  230          if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
  231             { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
  232   CONFIG_SHELL=$as_shell as_have_required=yes
  233            if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
  234   break 2
  235 fi
  236 fi
  237        done;;
  238        esac
  239   as_found=false
  240 done
  241 $as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
  242           { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
  243   CONFIG_SHELL=$SHELL as_have_required=yes
  244 fi; }
  245 IFS=$as_save_IFS
  246 
  247 
  248       if test "x$CONFIG_SHELL" != x; then :
  249   export CONFIG_SHELL
  250              # We cannot yet assume a decent shell, so we have to provide a
  251 # neutralization value for shells without unset; and this also
  252 # works around shells that cannot unset nonexistent variables.
  253 # Preserve -v and -x to the replacement shell.
  254 BASH_ENV=/dev/null
  255 ENV=/dev/null
  256 (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
  257 case $- in # ((((
  258   *v*x* | *x*v* ) as_opts=-vx ;;
  259   *v* ) as_opts=-v ;;
  260   *x* ) as_opts=-x ;;
  261   * ) as_opts= ;;
  262 esac
  263 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
  264 # Admittedly, this is quite paranoid, since all the known shells bail
  265 # out after a failed `exec'.
  266 $as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
  267 exit 255
  268 fi
  269 
  270     if test x$as_have_required = xno; then :
  271   $as_echo "$0: This script requires a shell more modern than all"
  272   $as_echo "$0: the shells that I found on your system."
  273   if test x${ZSH_VERSION+set} = xset ; then
  274     $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
  275     $as_echo "$0: be upgraded to zsh 4.3.4 or later."
  276   else
  277     $as_echo "$0: Please tell bug-autoconf@gnu.org and
  278 $0: singular@mathematik.uni-kl.de about your system,
  279 $0: including any error possibly output before this
  280 $0: message. Then install a modern shell, or manually run
  281 $0: the script under such a shell if you do have one."
  282   fi
  283   exit 1
  284 fi
  285 fi
  286 fi
  287 SHELL=${CONFIG_SHELL-/bin/sh}
  288 export SHELL
  289 # Unset more variables known to interfere with behavior of common tools.
  290 CLICOLOR_FORCE= GREP_OPTIONS=
  291 unset CLICOLOR_FORCE GREP_OPTIONS
  292 
  293 ## --------------------- ##
  294 ## M4sh Shell Functions. ##
  295 ## --------------------- ##
  296 # as_fn_unset VAR
  297 # ---------------
  298 # Portably unset VAR.
  299 as_fn_unset ()
  300 {
  301   { eval $1=; unset $1;}
  302 }
  303 as_unset=as_fn_unset
  304 
  305 # as_fn_set_status STATUS
  306 # -----------------------
  307 # Set $? to STATUS, without forking.
  308 as_fn_set_status ()
  309 {
  310   return $1
  311 } # as_fn_set_status
  312 
  313 # as_fn_exit STATUS
  314 # -----------------
  315 # Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
  316 as_fn_exit ()
  317 {
  318   set +e
  319   as_fn_set_status $1
  320   exit $1
  321 } # as_fn_exit
  322 
  323 # as_fn_mkdir_p
  324 # -------------
  325 # Create "$as_dir" as a directory, including parents if necessary.
  326 as_fn_mkdir_p ()
  327 {
  328 
  329   case $as_dir in #(
  330   -*) as_dir=./$as_dir;;
  331   esac
  332   test -d "$as_dir" || eval $as_mkdir_p || {
  333     as_dirs=
  334     while :; do
  335       case $as_dir in #(
  336       *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
  337       *) as_qdir=$as_dir;;
  338       esac
  339       as_dirs="'$as_qdir' $as_dirs"
  340       as_dir=`$as_dirname -- "$as_dir" ||
  341 $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
  342      X"$as_dir" : 'X\(//\)[^/]' \| \
  343      X"$as_dir" : 'X\(//\)$' \| \
  344      X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
  345 $as_echo X"$as_dir" |
  346     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
  347         s//\1/
  348         q
  349       }
  350       /^X\(\/\/\)[^/].*/{
  351         s//\1/
  352         q
  353       }
  354       /^X\(\/\/\)$/{
  355         s//\1/
  356         q
  357       }
  358       /^X\(\/\).*/{
  359         s//\1/
  360         q
  361       }
  362       s/.*/./; q'`
  363       test -d "$as_dir" && break
  364     done
  365     test -z "$as_dirs" || eval "mkdir $as_dirs"
  366   } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
  367 
  368 
  369 } # as_fn_mkdir_p
  370 
  371 # as_fn_executable_p FILE
  372 # -----------------------
  373 # Test if FILE is an executable regular file.
  374 as_fn_executable_p ()
  375 {
  376   test -f "$1" && test -x "$1"
  377 } # as_fn_executable_p
  378 # as_fn_append VAR VALUE
  379 # ----------------------
  380 # Append the text in VALUE to the end of the definition contained in VAR. Take
  381 # advantage of any shell optimizations that allow amortized linear growth over
  382 # repeated appends, instead of the typical quadratic growth present in naive
  383 # implementations.
  384 if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  385   eval 'as_fn_append ()
  386   {
  387     eval $1+=\$2
  388   }'
  389 else
  390   as_fn_append ()
  391   {
  392     eval $1=\$$1\$2
  393   }
  394 fi # as_fn_append
  395 
  396 # as_fn_arith ARG...
  397 # ------------------
  398 # Perform arithmetic evaluation on the ARGs, and store the result in the
  399 # global $as_val. Take advantage of shells that can avoid forks. The arguments
  400 # must be portable across $(()) and expr.
  401 if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  402   eval 'as_fn_arith ()
  403   {
  404     as_val=$(( $* ))
  405   }'
  406 else
  407   as_fn_arith ()
  408   {
  409     as_val=`expr "$@" || test $? -eq 1`
  410   }
  411 fi # as_fn_arith
  412 
  413 
  414 # as_fn_error STATUS ERROR [LINENO LOG_FD]
  415 # ----------------------------------------
  416 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
  417 # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
  418 # script with STATUS, using 1 if that was 0.
  419 as_fn_error ()
  420 {
  421   as_status=$1; test $as_status -eq 0 && as_status=1
  422   if test "$4"; then
  423     as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  424     $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  425   fi
  426   $as_echo "$as_me: error: $2" >&2
  427   as_fn_exit $as_status
  428 } # as_fn_error
  429 
  430 if expr a : '\(a\)' >/dev/null 2>&1 &&
  431    test "X`expr 00001 : '.*\(...\)'`" = X001; then
  432   as_expr=expr
  433 else
  434   as_expr=false
  435 fi
  436 
  437 if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  438   as_basename=basename
  439 else
  440   as_basename=false
  441 fi
  442 
  443 if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  444   as_dirname=dirname
  445 else
  446   as_dirname=false
  447 fi
  448 
  449 as_me=`$as_basename -- "$0" ||
  450 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
  451      X"$0" : 'X\(//\)$' \| \
  452      X"$0" : 'X\(/\)' \| . 2>/dev/null ||
  453 $as_echo X/"$0" |
  454     sed '/^.*\/\([^/][^/]*\)\/*$/{
  455         s//\1/
  456         q
  457       }
  458       /^X\/\(\/\/\)$/{
  459         s//\1/
  460         q
  461       }
  462       /^X\/\(\/\).*/{
  463         s//\1/
  464         q
  465       }
  466       s/.*/./; q'`
  467 
  468 # Avoid depending upon Character Ranges.
  469 as_cr_letters='abcdefghijklmnopqrstuvwxyz'
  470 as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
  471 as_cr_Letters=$as_cr_letters$as_cr_LETTERS
  472 as_cr_digits='0123456789'
  473 as_cr_alnum=$as_cr_Letters$as_cr_digits
  474 
  475 
  476   as_lineno_1=$LINENO as_lineno_1a=$LINENO
  477   as_lineno_2=$LINENO as_lineno_2a=$LINENO
  478   eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
  479   test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
  480   # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
  481   sed -n '
  482     p
  483     /[$]LINENO/=
  484   ' <$as_myself |
  485     sed '
  486       s/[$]LINENO.*/&-/
  487       t lineno
  488       b
  489       :lineno
  490       N
  491       :loop
  492       s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
  493       t loop
  494       s/-\n.*//
  495     ' >$as_me.lineno &&
  496   chmod +x "$as_me.lineno" ||
  497     { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
  498 
  499   # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  500   # already done that, so ensure we don't try to do so again and fall
  501   # in an infinite loop.  This has already happened in practice.
  502   _as_can_reexec=no; export _as_can_reexec
  503   # Don't try to exec as it changes $[0], causing all sort of problems
  504   # (the dirname of $[0] is not the place where we might find the
  505   # original and so on.  Autoconf is especially sensitive to this).
  506   . "./$as_me.lineno"
  507   # Exit status is that of the last command.
  508   exit
  509 }
  510 
  511 ECHO_C= ECHO_N= ECHO_T=
  512 case `echo -n x` in #(((((
  513 -n*)
  514   case `echo 'xy\c'` in
  515   *c*) ECHO_T=' ';; # ECHO_T is single tab character.
  516   xy)  ECHO_C='\c';;
  517   *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
  518        ECHO_T=' ';;
  519   esac;;
  520 *)
  521   ECHO_N='-n';;
  522 esac
  523 
  524 rm -f conf$$ conf$$.exe conf$$.file
  525 if test -d conf$$.dir; then
  526   rm -f conf$$.dir/conf$$.file
  527 else
  528   rm -f conf$$.dir
  529   mkdir conf$$.dir 2>/dev/null
  530 fi
  531 if (echo >conf$$.file) 2>/dev/null; then
  532   if ln -s conf$$.file conf$$ 2>/dev/null; then
  533     as_ln_s='ln -s'
  534     # ... but there are two gotchas:
  535     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
  536     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
  537     # In both cases, we have to default to `cp -pR'.
  538     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
  539       as_ln_s='cp -pR'
  540   elif ln conf$$.file conf$$ 2>/dev/null; then
  541     as_ln_s=ln
  542   else
  543     as_ln_s='cp -pR'
  544   fi
  545 else
  546   as_ln_s='cp -pR'
  547 fi
  548 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
  549 rmdir conf$$.dir 2>/dev/null
  550 
  551 if mkdir -p . 2>/dev/null; then
  552   as_mkdir_p='mkdir -p "$as_dir"'
  553 else
  554   test -d ./-p && rmdir ./-p
  555   as_mkdir_p=false
  556 fi
  557 
  558 as_test_x='test -x'
  559 as_executable_p=as_fn_executable_p
  560 
  561 # Sed expression to map a string onto a valid CPP name.
  562 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
  563 
  564 # Sed expression to map a string onto a valid variable name.
  565 as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
  566 
  567 SHELL=${CONFIG_SHELL-/bin/sh}
  568 
  569 
  570 test -n "$DJDIR" || exec 7<&0 </dev/null
  571 exec 6>&1
  572 
  573 # Name of the host.
  574 # hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
  575 # so uname gets run too.
  576 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
  577 
  578 #
  579 # Initializations.
  580 #
  581 ac_default_prefix=/usr/local
  582 ac_clean_files=
  583 ac_config_libobj_dir=.
  584 LIBOBJS=
  585 cross_compiling=no
  586 subdirs=
  587 MFLAGS=
  588 MAKEFLAGS=
  589 
  590 # Identity of this package.
  591 PACKAGE_NAME='singular'
  592 PACKAGE_TARNAME='singular'
  593 PACKAGE_VERSION='4.2.1'
  594 PACKAGE_STRING='singular 4.2.1'
  595 PACKAGE_BUGREPORT='singular@mathematik.uni-kl.de'
  596 PACKAGE_URL=''
  597 
  598 ac_unique_file="Singular/tesths.cc"
  599 # Factoring default headers for most tests.
  600 ac_includes_default="\
  601 #include <stdio.h>
  602 #ifdef HAVE_SYS_TYPES_H
  603 # include <sys/types.h>
  604 #endif
  605 #ifdef HAVE_SYS_STAT_H
  606 # include <sys/stat.h>
  607 #endif
  608 #ifdef STDC_HEADERS
  609 # include <stdlib.h>
  610 # include <stddef.h>
  611 #else
  612 # ifdef HAVE_STDLIB_H
  613 #  include <stdlib.h>
  614 # endif
  615 #endif
  616 #ifdef HAVE_STRING_H
  617 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
  618 #  include <memory.h>
  619 # endif
  620 # include <string.h>
  621 #endif
  622 #ifdef HAVE_STRINGS_H
  623 # include <strings.h>
  624 #endif
  625 #ifdef HAVE_INTTYPES_H
  626 # include <inttypes.h>
  627 #endif
  628 #ifdef HAVE_STDINT_H
  629 # include <stdint.h>
  630 #endif
  631 #ifdef HAVE_UNISTD_H
  632 # include <unistd.h>
  633 #endif"
  634 
  635 enable_option_checking=no
  636 ac_subst_vars='am__EXEEXT_FALSE
  637 am__EXEEXT_TRUE
  638 LTLIBOBJS
  639 ENABLE_DOC_BUILD_FALSE
  640 ENABLE_DOC_BUILD_TRUE
  641 DOC2TEX_EXAMPLE_EXCLUSIONS
  642 GFAN_TROPICALBASIS
  643 SURF
  644 DOT
  645 BERTINI
  646 FOURTITWO_GRAVER
  647 FOURTITWO_MARKOV
  648 FOURTITWO_HILBERT
  649 TOPCOM
  650 GFAN
  651 NORMALIZ
  652 LRCALC
  653 QEPCAD
  654 DVIPS
  655 TEXINDEX
  656 TEXI2PDF
  657 subdirs
  658 DATA_DIR
  659 optional_Singular_programs
  660 SI_COUNTEDREF_AUTOLOAD
  661 PYTHON_LSPEC
  662 PYTHON_CSPEC
  663 PYTHON_EXECPREFIX
  664 PYTHON_PREFIX
  665 PYTHON
  666 PYTHON_USE_FALSE
  667 PYTHON_USE_TRUE
  668 SI_BUILTIN_MACHINELEARNING_FALSE
  669 SI_BUILTIN_MACHINELEARNING_TRUE
  670 SI_BUILTIN_LOCTRIV_FALSE
  671 SI_BUILTIN_LOCTRIV_TRUE
  672 SI_BUILTIN_SYSTHREADS_FALSE
  673 SI_BUILTIN_SYSTHREADS_TRUE
  674 SI_BUILTIN_INTERVAL_FALSE
  675 SI_BUILTIN_INTERVAL_TRUE
  676 SI_BUILTIN_GITFAN_FALSE
  677 SI_BUILTIN_GITFAN_TRUE
  678 SI_BUILTIN_ORDER_FALSE
  679 SI_BUILTIN_ORDER_TRUE
  680 SI_BUILTIN_BIGINTM_FALSE
  681 SI_BUILTIN_BIGINTM_TRUE
  682 SI_BUILTIN_SINGMATHIC_FALSE
  683 SI_BUILTIN_SINGMATHIC_TRUE
  684 SI_BUILTIN_CUSTOMSTD_FALSE
  685 SI_BUILTIN_CUSTOMSTD_TRUE
  686 SI_BUILTIN_PYTHON_MODULE_FALSE
  687 SI_BUILTIN_PYTHON_MODULE_TRUE
  688 SI_BUILTIN_POLYMAKE_FALSE
  689 SI_BUILTIN_POLYMAKE_TRUE
  690 SI_BUILTIN_GFANLIB_FALSE
  691 SI_BUILTIN_GFANLIB_TRUE
  692 SI_BUILTIN_PYOBJECT_FALSE
  693 SI_BUILTIN_PYOBJECT_TRUE
  694 SI_BUILTIN_SYZEXTRA_FALSE
  695 SI_BUILTIN_SYZEXTRA_TRUE
  696 SI_BUILTIN_PARTIALGB_FALSE
  697 SI_BUILTIN_PARTIALGB_TRUE
  698 SI_BUILTIN_FREEALGEBRA_FALSE
  699 SI_BUILTIN_FREEALGEBRA_TRUE
  700 SI_BUILTIN_SUBSETS_FALSE
  701 SI_BUILTIN_SUBSETS_TRUE
  702 SI_BUILTIN_STATICDEMO_FALSE
  703 SI_BUILTIN_STATICDEMO_TRUE
  704 BUILTIN_MODULES
  705 BUILTIN_LIBS
  706 ENABLE_MACHINELEARNING_MODULE_FALSE
  707 ENABLE_MACHINELEARNING_MODULE_TRUE
  708 ENABLE_COHOMO_MODULE_FALSE
  709 ENABLE_COHOMO_MODULE_TRUE
  710 ENABLE_LOCTRIV_MODULE_FALSE
  711 ENABLE_LOCTRIV_MODULE_TRUE
  712 ENABLE_SYSTHREADS_MODULE_FALSE
  713 ENABLE_SYSTHREADS_MODULE_TRUE
  714 ENABLE_INTERVAL_MODULE_FALSE
  715 ENABLE_INTERVAL_MODULE_TRUE
  716 ENABLE_GITFAN_MODULE_FALSE
  717 ENABLE_GITFAN_MODULE_TRUE
  718 ENABLE_SINGMATHIC_MODULE_FALSE
  719 ENABLE_SINGMATHIC_MODULE_TRUE
  720 ENABLE_PYOBJECT_MODULE_FALSE
  721 ENABLE_PYOBJECT_MODULE_TRUE
  722 ENABLE_CUSTOMSTD_MODULE_FALSE
  723 ENABLE_CUSTOMSTD_MODULE_TRUE
  724 ENABLE_POLYMAKE_MODULE_FALSE
  725 ENABLE_POLYMAKE_MODULE_TRUE
  726 ENABLE_GFANLIB_MODULE_FALSE
  727 ENABLE_GFANLIB_MODULE_TRUE
  728 ENABLE_SYZEXTRA_MODULE_FALSE
  729 ENABLE_SYZEXTRA_MODULE_TRUE
  730 ENABLE_PARTIALGB_MODULE_FALSE
  731 ENABLE_PARTIALGB_MODULE_TRUE
  732 ENABLE_FREEALGEBRA_MODULE_FALSE
  733 ENABLE_FREEALGEBRA_MODULE_TRUE
  734 ENABLE_SUBSETS_MODULE_FALSE
  735 ENABLE_SUBSETS_MODULE_TRUE
  736 ENABLE_PYTHON_MODULE_FALSE
  737 ENABLE_PYTHON_MODULE_TRUE
  738 ENABLE_ORDER_MODULE_FALSE
  739 ENABLE_ORDER_MODULE_TRUE
  740 ENABLE_BIGINTM_MODULE_FALSE
  741 ENABLE_BIGINTM_MODULE_TRUE
  742 ENABLE_STATICDEMO_MODULE_FALSE
  743 ENABLE_STATICDEMO_MODULE_TRUE
  744 ENABLE_PLURAL_FALSE
  745 ENABLE_PLURAL_TRUE
  746 HAVE_GFANLIB_FALSE
  747 HAVE_GFANLIB_TRUE
  748 CDDGMPLDFLAGS
  749 CDDGMPCPPFLAGS
  750 ENABLE_P_PROCS_STATIC_FALSE
  751 ENABLE_P_PROCS_STATIC_TRUE
  752 ENABLE_P_PROCS_DYNAMIC_FALSE
  753 ENABLE_P_PROCS_DYNAMIC_TRUE
  754 USEPPROCSDYNAMICLD
  755 USEPPROCSDYNAMICLDFLAGS
  756 ENABLE_FACTORY_FALSE
  757 ENABLE_FACTORY_TRUE
  758 FACTORY_LIBS
  759 FACTORY_INCLUDES
  760 ENABLE_RESOURCES_FALSE
  761 ENABLE_RESOURCES_TRUE
  762 RESOURCES_LIBS
  763 RESOURCES_INCLUDES
  764 OMALLOC_LIBS
  765 OMALLOC_INCLUDES
  766 PKG_REQUIRE
  767 SING_WIN_FALSE
  768 SING_WIN_TRUE
  769 SINGULAR_LDFLAGS
  770 SI_CPU_PPC
  771 SI_CPU_SPARC
  772 SI_CPU_IA64
  773 SI_CPU_X86_64
  774 SI_CPU_I386
  775 LIBOBJS
  776 MATHIC_LIBS
  777 SING_HAVE_CCLUSTER_FALSE
  778 SING_HAVE_CCLUSTER_TRUE
  779 CCLUSTER_CPPFLAGS
  780 CCLUSTER_LIBS
  781 FLINT_HOME
  782 FLINT_LIBS
  783 FLINT_CFLAGS
  784 SING_HAVE_NTL_FALSE
  785 SING_HAVE_NTL_TRUE
  786 NTL_LIBS
  787 NTL_CPPFLAGS
  788 GMP_LIBS
  789 GMP_CPPFLAGS
  790 PTHREAD_LDFLAGS
  791 PTHREAD_CFLAGS
  792 PTHREAD_LIBS
  793 PTHREAD_CC
  794 ax_pthread_config
  795 LT_SYS_LIBRARY_PATH
  796 OTOOL64
  797 OTOOL
  798 LIPO
  799 NMEDIT
  800 DSYMUTIL
  801 MANIFEST_TOOL
  802 RANLIB
  803 NM
  804 ac_ct_DUMPBIN
  805 DUMPBIN
  806 LD
  807 FGREP
  808 SED
  809 host_os
  810 host_vendor
  811 host_cpu
  812 host
  813 build_os
  814 build_vendor
  815 build_cpu
  816 build
  817 LIBTOOL
  818 OBJDUMP
  819 DLLTOOL
  820 AS
  821 HAVE_DOXYGEN_FALSE
  822 HAVE_DOXYGEN_TRUE
  823 DOXYGEN
  824 LN_S
  825 ac_ct_AR
  826 AR
  827 CXXCPP
  828 FEXCEPTIONSFRTTI_CXXFLAGS
  829 am__fastdepCXX_FALSE
  830 am__fastdepCXX_TRUE
  831 CXXDEPMODE
  832 ac_ct_CXX
  833 CXXFLAGS
  834 CXX
  835 SINGULAR_CFLAGS
  836 WANT_OPTIMIZATIONFLAGS_FALSE
  837 WANT_OPTIMIZATIONFLAGS_TRUE
  838 WANT_DEBUG_FALSE
  839 WANT_DEBUG_TRUE
  840 AM_BACKSLASH
  841 AM_DEFAULT_VERBOSITY
  842 AM_DEFAULT_V
  843 AM_V
  844 am__fastdepCC_FALSE
  845 am__fastdepCC_TRUE
  846 CCDEPMODE
  847 am__nodep
  848 AMDEPBACKSLASH
  849 AMDEP_FALSE
  850 AMDEP_TRUE
  851 am__include
  852 DEPDIR
  853 am__untar
  854 am__tar
  855 AMTAR
  856 am__leading_dot
  857 SET_MAKE
  858 AWK
  859 mkdir_p
  860 MKDIR_P
  861 INSTALL_STRIP_PROGRAM
  862 STRIP
  863 install_sh
  864 MAKEINFO
  865 AUTOHEADER
  866 AUTOMAKE
  867 AUTOCONF
  868 ACLOCAL
  869 VERSION
  870 PACKAGE
  871 CYGPATH_W
  872 am__isrc
  873 INSTALL_DATA
  874 INSTALL_SCRIPT
  875 INSTALL_PROGRAM
  876 MAINT
  877 MAINTAINER_MODE_FALSE
  878 MAINTAINER_MODE_TRUE
  879 EGREP
  880 GREP
  881 CPP
  882 OBJEXT
  883 EXEEXT
  884 ac_ct_CC
  885 CPPFLAGS
  886 LDFLAGS
  887 CFLAGS
  888 CC
  889 VERSION_DATE
  890 target_alias
  891 host_alias
  892 build_alias
  893 LIBS
  894 ECHO_T
  895 ECHO_N
  896 ECHO_C
  897 DEFS
  898 mandir
  899 localedir
  900 libdir
  901 psdir
  902 pdfdir
  903 dvidir
  904 htmldir
  905 infodir
  906 docdir
  907 oldincludedir
  908 includedir
  909 runstatedir
  910 localstatedir
  911 sharedstatedir
  912 sysconfdir
  913 datadir
  914 datarootdir
  915 libexecdir
  916 sbindir
  917 bindir
  918 program_transform_name
  919 prefix
  920 exec_prefix
  921 PACKAGE_URL
  922 PACKAGE_BUGREPORT
  923 PACKAGE_STRING
  924 PACKAGE_VERSION
  925 PACKAGE_TARNAME
  926 PACKAGE_NAME
  927 PATH_SEPARATOR
  928 SHELL
  929 am__quote'
  930 ac_subst_files=''
  931 ac_user_opts='
  932 enable_option_checking
  933 enable_maintainer_mode
  934 enable_dependency_tracking
  935 enable_silent_rules
  936 enable_debug
  937 enable_optimizationflags
  938 enable_shared
  939 enable_static
  940 with_pic
  941 enable_fast_install
  942 with_aix_soname
  943 with_gnu_ld
  944 with_sysroot
  945 enable_libtool_lock
  946 with_gmp
  947 with_ntl
  948 with_flint
  949 with_google_perftools
  950 enable_google_profiling
  951 with_ccluster
  952 with_mathicgb
  953 enable_omalloc
  954 enable_singular_resources
  955 enable_p_procs_static
  956 enable_p_procs_dynamic
  957 enable_dynamic_modules
  958 with_readline
  959 with_dbm
  960 enable_gfanlib
  961 enable_plural
  962 with_RatGB
  963 enable_staticdemo_module
  964 enable_bigintm_module
  965 enable_Order_module
  966 enable_python_module
  967 enable_subsets_module
  968 enable_freealgebra_module
  969 enable_partialgb_module
  970 enable_syzextra_module
  971 enable_gfanlib_module
  972 enable_polymake_module
  973 enable_customstd_module
  974 enable_pyobject_module
  975 enable_singmathic_module
  976 enable_gitfan_module
  977 enable_interval_module
  978 enable_systhreads_module
  979 enable_loctriv_module
  980 enable_cohomo_module
  981 enable_machinelearning_module
  982 with_builtinmodules
  983 with_python
  984 enable_python
  985 enable_countedref
  986 with_libparse
  987 enable_doc_build
  988 '
  989       ac_precious_vars='build_alias
  990 host_alias
  991 target_alias
  992 CC
  993 CFLAGS
  994 LDFLAGS
  995 LIBS
  996 CPPFLAGS
  997 CPP
  998 CXX
  999 CXXFLAGS
 1000 CCC
 1001 CXXCPP
 1002 LT_SYS_LIBRARY_PATH
 1003 BUILTIN_LIBS
 1004 PYTHON'
 1005 ac_subdirs_all='resources
 1006 omalloc
 1007 factory
 1008 libpolys
 1009 gfanlib'
 1010 
 1011 # Initialize some variables set by options.
 1012 ac_init_help=
 1013 ac_init_version=false
 1014 ac_unrecognized_opts=
 1015 ac_unrecognized_sep=
 1016 # The variables have the same names as the options, with
 1017 # dashes changed to underlines.
 1018 cache_file=/dev/null
 1019 exec_prefix=NONE
 1020 no_create=
 1021 no_recursion=
 1022 prefix=NONE
 1023 program_prefix=NONE
 1024 program_suffix=NONE
 1025 program_transform_name=s,x,x,
 1026 silent=
 1027 site=
 1028 srcdir=
 1029 verbose=
 1030 x_includes=NONE
 1031 x_libraries=NONE
 1032 
 1033 # Installation directory options.
 1034 # These are left unexpanded so users can "make install exec_prefix=/foo"
 1035 # and all the variables that are supposed to be based on exec_prefix
 1036 # by default will actually change.
 1037 # Use braces instead of parens because sh, perl, etc. also accept them.
 1038 # (The list follows the same order as the GNU Coding Standards.)
 1039 bindir='${exec_prefix}/bin'
 1040 sbindir='${exec_prefix}/sbin'
 1041 libexecdir='${exec_prefix}/libexec'
 1042 datarootdir='${prefix}/share'
 1043 datadir='${datarootdir}'
 1044 sysconfdir='${prefix}/etc'
 1045 sharedstatedir='${prefix}/com'
 1046 localstatedir='${prefix}/var'
 1047 runstatedir='${localstatedir}/run'
 1048 includedir='${prefix}/include'
 1049 oldincludedir='/usr/include'
 1050 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
 1051 infodir='${datarootdir}/info'
 1052 htmldir='${docdir}'
 1053 dvidir='${docdir}'
 1054 pdfdir='${docdir}'
 1055 psdir='${docdir}'
 1056 libdir='${exec_prefix}/lib'
 1057 localedir='${datarootdir}/locale'
 1058 mandir='${datarootdir}/man'
 1059 
 1060 ac_prev=
 1061 ac_dashdash=
 1062 for ac_option
 1063 do
 1064   # If the previous option needs an argument, assign it.
 1065   if test -n "$ac_prev"; then
 1066     eval $ac_prev=\$ac_option
 1067     ac_prev=
 1068     continue
 1069   fi
 1070 
 1071   case $ac_option in
 1072   *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
 1073   *=)   ac_optarg= ;;
 1074   *)    ac_optarg=yes ;;
 1075   esac
 1076 
 1077   # Accept the important Cygnus configure options, so we can diagnose typos.
 1078 
 1079   case $ac_dashdash$ac_option in
 1080   --)
 1081     ac_dashdash=yes ;;
 1082 
 1083   -bindir | --bindir | --bindi | --bind | --bin | --bi)
 1084     ac_prev=bindir ;;
 1085   -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
 1086     bindir=$ac_optarg ;;
 1087 
 1088   -build | --build | --buil | --bui | --bu)
 1089     ac_prev=build_alias ;;
 1090   -build=* | --build=* | --buil=* | --bui=* | --bu=*)
 1091     build_alias=$ac_optarg ;;
 1092 
 1093   -cache-file | --cache-file | --cache-fil | --cache-fi \
 1094   | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
 1095     ac_prev=cache_file ;;
 1096   -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
 1097   | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
 1098     cache_file=$ac_optarg ;;
 1099 
 1100   --config-cache | -C)
 1101     cache_file=config.cache ;;
 1102 
 1103   -datadir | --datadir | --datadi | --datad)
 1104     ac_prev=datadir ;;
 1105   -datadir=* | --datadir=* | --datadi=* | --datad=*)
 1106     datadir=$ac_optarg ;;
 1107 
 1108   -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
 1109   | --dataroo | --dataro | --datar)
 1110     ac_prev=datarootdir ;;
 1111   -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
 1112   | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
 1113     datarootdir=$ac_optarg ;;
 1114 
 1115   -disable-* | --disable-*)
 1116     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
 1117     # Reject names that are not valid shell variable names.
 1118     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
 1119       as_fn_error $? "invalid feature name: $ac_useropt"
 1120     ac_useropt_orig=$ac_useropt
 1121     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
 1122     case $ac_user_opts in
 1123       *"
 1124 "enable_$ac_useropt"
 1125 "*) ;;
 1126       *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
 1127      ac_unrecognized_sep=', ';;
 1128     esac
 1129     eval enable_$ac_useropt=no ;;
 1130 
 1131   -docdir | --docdir | --docdi | --doc | --do)
 1132     ac_prev=docdir ;;
 1133   -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
 1134     docdir=$ac_optarg ;;
 1135 
 1136   -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
 1137     ac_prev=dvidir ;;
 1138   -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
 1139     dvidir=$ac_optarg ;;
 1140 
 1141   -enable-* | --enable-*)
 1142     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
 1143     # Reject names that are not valid shell variable names.
 1144     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
 1145       as_fn_error $? "invalid feature name: $ac_useropt"
 1146     ac_useropt_orig=$ac_useropt
 1147     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
 1148     case $ac_user_opts in
 1149       *"
 1150 "enable_$ac_useropt"
 1151 "*) ;;
 1152       *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
 1153      ac_unrecognized_sep=', ';;
 1154     esac
 1155     eval enable_$ac_useropt=\$ac_optarg ;;
 1156 
 1157   -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
 1158   | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
 1159   | --exec | --exe | --ex)
 1160     ac_prev=exec_prefix ;;
 1161   -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
 1162   | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
 1163   | --exec=* | --exe=* | --ex=*)
 1164     exec_prefix=$ac_optarg ;;
 1165 
 1166   -gas | --gas | --ga | --g)
 1167     # Obsolete; use --with-gas.
 1168     with_gas=yes ;;
 1169 
 1170   -help | --help | --hel | --he | -h)
 1171     ac_init_help=long ;;
 1172   -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
 1173     ac_init_help=recursive ;;
 1174   -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
 1175     ac_init_help=short ;;
 1176 
 1177   -host | --host | --hos | --ho)
 1178     ac_prev=host_alias ;;
 1179   -host=* | --host=* | --hos=* | --ho=*)
 1180     host_alias=$ac_optarg ;;
 1181 
 1182   -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
 1183     ac_prev=htmldir ;;
 1184   -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
 1185   | --ht=*)
 1186     htmldir=$ac_optarg ;;
 1187 
 1188   -includedir | --includedir | --includedi | --included | --include \
 1189   | --includ | --inclu | --incl | --inc)
 1190     ac_prev=includedir ;;
 1191   -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
 1192   | --includ=* | --inclu=* | --incl=* | --inc=*)
 1193     includedir=$ac_optarg ;;
 1194 
 1195   -infodir | --infodir | --infodi | --infod | --info | --inf)
 1196     ac_prev=infodir ;;
 1197   -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
 1198     infodir=$ac_optarg ;;
 1199 
 1200   -libdir | --libdir | --libdi | --libd)
 1201     ac_prev=libdir ;;
 1202   -libdir=* | --libdir=* | --libdi=* | --libd=*)
 1203     libdir=$ac_optarg ;;
 1204 
 1205   -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
 1206   | --libexe | --libex | --libe)
 1207     ac_prev=libexecdir ;;
 1208   -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
 1209   | --libexe=* | --libex=* | --libe=*)
 1210     libexecdir=$ac_optarg ;;
 1211 
 1212   -localedir | --localedir | --localedi | --localed | --locale)
 1213     ac_prev=localedir ;;
 1214   -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
 1215     localedir=$ac_optarg ;;
 1216 
 1217   -localstatedir | --localstatedir | --localstatedi | --localstated \
 1218   | --localstate | --localstat | --localsta | --localst | --locals)
 1219     ac_prev=localstatedir ;;
 1220   -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
 1221   | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
 1222     localstatedir=$ac_optarg ;;
 1223 
 1224   -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
 1225     ac_prev=mandir ;;
 1226   -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
 1227     mandir=$ac_optarg ;;
 1228 
 1229   -nfp | --nfp | --nf)
 1230     # Obsolete; use --without-fp.
 1231     with_fp=no ;;
 1232 
 1233   -no-create | --no-create | --no-creat | --no-crea | --no-cre \
 1234   | --no-cr | --no-c | -n)
 1235     no_create=yes ;;
 1236 
 1237   -no-recursion | --no-recursion | --no-recursio | --no-recursi \
 1238   | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
 1239     no_recursion=yes ;;
 1240 
 1241   -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
 1242   | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
 1243   | --oldin | --oldi | --old | --ol | --o)
 1244     ac_prev=oldincludedir ;;
 1245   -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
 1246   | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
 1247   | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
 1248     oldincludedir=$ac_optarg ;;
 1249 
 1250   -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
 1251     ac_prev=prefix ;;
 1252   -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
 1253     prefix=$ac_optarg ;;
 1254 
 1255   -program-prefix | --program-prefix | --program-prefi | --program-pref \
 1256   | --program-pre | --program-pr | --program-p)
 1257     ac_prev=program_prefix ;;
 1258   -program-prefix=* | --program-prefix=* | --program-prefi=* \
 1259   | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
 1260     program_prefix=$ac_optarg ;;
 1261 
 1262   -program-suffix | --program-suffix | --program-suffi | --program-suff \
 1263   | --program-suf | --program-su | --program-s)
 1264     ac_prev=program_suffix ;;
 1265   -program-suffix=* | --program-suffix=* | --program-suffi=* \
 1266   | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
 1267     program_suffix=$ac_optarg ;;
 1268 
 1269   -program-transform-name | --program-transform-name \
 1270   | --program-transform-nam | --program-transform-na \
 1271   | --program-transform-n | --program-transform- \
 1272   | --program-transform | --program-transfor \
 1273   | --program-transfo | --program-transf \
 1274   | --program-trans | --program-tran \
 1275   | --progr-tra | --program-tr | --program-t)
 1276     ac_prev=program_transform_name ;;
 1277   -program-transform-name=* | --program-transform-name=* \
 1278   | --program-transform-nam=* | --program-transform-na=* \
 1279   | --program-transform-n=* | --program-transform-=* \
 1280   | --program-transform=* | --program-transfor=* \
 1281   | --program-transfo=* | --program-transf=* \
 1282   | --program-trans=* | --program-tran=* \
 1283   | --progr-tra=* | --program-tr=* | --program-t=*)
 1284     program_transform_name=$ac_optarg ;;
 1285 
 1286   -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
 1287     ac_prev=pdfdir ;;
 1288   -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
 1289     pdfdir=$ac_optarg ;;
 1290 
 1291   -psdir | --psdir | --psdi | --psd | --ps)
 1292     ac_prev=psdir ;;
 1293   -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
 1294     psdir=$ac_optarg ;;
 1295 
 1296   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
 1297   | -silent | --silent | --silen | --sile | --sil)
 1298     silent=yes ;;
 1299 
 1300   -runstatedir | --runstatedir | --runstatedi | --runstated \
 1301   | --runstate | --runstat | --runsta | --runst | --runs \
 1302   | --run | --ru | --r)
 1303     ac_prev=runstatedir ;;
 1304   -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
 1305   | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
 1306   | --run=* | --ru=* | --r=*)
 1307     runstatedir=$ac_optarg ;;
 1308 
 1309   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
 1310     ac_prev=sbindir ;;
 1311   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
 1312   | --sbi=* | --sb=*)
 1313     sbindir=$ac_optarg ;;
 1314 
 1315   -sharedstatedir | --sharedstatedir | --sharedstatedi \
 1316   | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
 1317   | --sharedst | --shareds | --shared | --share | --shar \
 1318   | --sha | --sh)
 1319     ac_prev=sharedstatedir ;;
 1320   -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
 1321   | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
 1322   | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
 1323   | --sha=* | --sh=*)
 1324     sharedstatedir=$ac_optarg ;;
 1325 
 1326   -site | --site | --sit)
 1327     ac_prev=site ;;
 1328   -site=* | --site=* | --sit=*)
 1329     site=$ac_optarg ;;
 1330 
 1331   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
 1332     ac_prev=srcdir ;;
 1333   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
 1334     srcdir=$ac_optarg ;;
 1335 
 1336   -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
 1337   | --syscon | --sysco | --sysc | --sys | --sy)
 1338     ac_prev=sysconfdir ;;
 1339   -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
 1340   | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
 1341     sysconfdir=$ac_optarg ;;
 1342 
 1343   -target | --target | --targe | --targ | --tar | --ta | --t)
 1344     ac_prev=target_alias ;;
 1345   -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
 1346     target_alias=$ac_optarg ;;
 1347 
 1348   -v | -verbose | --verbose | --verbos | --verbo | --verb)
 1349     verbose=yes ;;
 1350 
 1351   -version | --version | --versio | --versi | --vers | -V)
 1352     ac_init_version=: ;;
 1353 
 1354   -with-* | --with-*)
 1355     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
 1356     # Reject names that are not valid shell variable names.
 1357     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
 1358       as_fn_error $? "invalid package name: $ac_useropt"
 1359     ac_useropt_orig=$ac_useropt
 1360     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
 1361     case $ac_user_opts in
 1362       *"
 1363 "with_$ac_useropt"
 1364 "*) ;;
 1365       *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
 1366      ac_unrecognized_sep=', ';;
 1367     esac
 1368     eval with_$ac_useropt=\$ac_optarg ;;
 1369 
 1370   -without-* | --without-*)
 1371     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
 1372     # Reject names that are not valid shell variable names.
 1373     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
 1374       as_fn_error $? "invalid package name: $ac_useropt"
 1375     ac_useropt_orig=$ac_useropt
 1376     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
 1377     case $ac_user_opts in
 1378       *"
 1379 "with_$ac_useropt"
 1380 "*) ;;
 1381       *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
 1382      ac_unrecognized_sep=', ';;
 1383     esac
 1384     eval with_$ac_useropt=no ;;
 1385 
 1386   --x)
 1387     # Obsolete; use --with-x.
 1388     with_x=yes ;;
 1389 
 1390   -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
 1391   | --x-incl | --x-inc | --x-in | --x-i)
 1392     ac_prev=x_includes ;;
 1393   -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
 1394   | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
 1395     x_includes=$ac_optarg ;;
 1396 
 1397   -x-libraries | --x-libraries | --x-librarie | --x-librari \
 1398   | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
 1399     ac_prev=x_libraries ;;
 1400   -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
 1401   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
 1402     x_libraries=$ac_optarg ;;
 1403 
 1404   -*) as_fn_error $? "unrecognized option: \`$ac_option'
 1405 Try \`$0 --help' for more information"
 1406     ;;
 1407 
 1408   *=*)
 1409     ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
 1410     # Reject names that are not valid shell variable names.
 1411     case $ac_envvar in #(
 1412       '' | [0-9]* | *[!_$as_cr_alnum]* )
 1413       as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
 1414     esac
 1415     eval $ac_envvar=\$ac_optarg
 1416     export $ac_envvar ;;
 1417 
 1418   *)
 1419     # FIXME: should be removed in autoconf 3.0.
 1420     $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
 1421     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
 1422       $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
 1423     : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
 1424     ;;
 1425 
 1426   esac
 1427 done
 1428 
 1429 if test -n "$ac_prev"; then
 1430   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
 1431   as_fn_error $? "missing argument to $ac_option"
 1432 fi
 1433 
 1434 if test -n "$ac_unrecognized_opts"; then
 1435   case $enable_option_checking in
 1436     no) ;;
 1437     fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
 1438     *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
 1439   esac
 1440 fi
 1441 
 1442 # Check all directory arguments for consistency.
 1443 for ac_var in   exec_prefix prefix bindir sbindir libexecdir datarootdir \
 1444         datadir sysconfdir sharedstatedir localstatedir includedir \
 1445         oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
 1446         libdir localedir mandir runstatedir
 1447 do
 1448   eval ac_val=\$$ac_var
 1449   # Remove trailing slashes.
 1450   case $ac_val in
 1451     */ )
 1452       ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
 1453       eval $ac_var=\$ac_val;;
 1454   esac
 1455   # Be sure to have absolute directory names.
 1456   case $ac_val in
 1457     [\\/$]* | ?:[\\/]* )  continue;;
 1458     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
 1459   esac
 1460   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 1461 done
 1462 
 1463 # There might be people who depend on the old broken behavior: `$host'
 1464 # used to hold the argument of --host etc.
 1465 # FIXME: To remove some day.
 1466 build=$build_alias
 1467 host=$host_alias
 1468 target=$target_alias
 1469 
 1470 # FIXME: To remove some day.
 1471 if test "x$host_alias" != x; then
 1472   if test "x$build_alias" = x; then
 1473     cross_compiling=maybe
 1474   elif test "x$build_alias" != "x$host_alias"; then
 1475     cross_compiling=yes
 1476   fi
 1477 fi
 1478 
 1479 ac_tool_prefix=
 1480 test -n "$host_alias" && ac_tool_prefix=$host_alias-
 1481 
 1482 test "$silent" = yes && exec 6>/dev/null
 1483 
 1484 
 1485 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 1486 ac_ls_di=`ls -di .` &&
 1487 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
 1488   as_fn_error $? "working directory cannot be determined"
 1489 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
 1490   as_fn_error $? "pwd does not report name of working directory"
 1491 
 1492 
 1493 # Find the source files, if location was not specified.
 1494 if test -z "$srcdir"; then
 1495   ac_srcdir_defaulted=yes
 1496   # Try the directory containing this script, then the parent directory.
 1497   ac_confdir=`$as_dirname -- "$as_myself" ||
 1498 $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 1499      X"$as_myself" : 'X\(//\)[^/]' \| \
 1500      X"$as_myself" : 'X\(//\)$' \| \
 1501      X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
 1502 $as_echo X"$as_myself" |
 1503     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 1504         s//\1/
 1505         q
 1506       }
 1507       /^X\(\/\/\)[^/].*/{
 1508         s//\1/
 1509         q
 1510       }
 1511       /^X\(\/\/\)$/{
 1512         s//\1/
 1513         q
 1514       }
 1515       /^X\(\/\).*/{
 1516         s//\1/
 1517         q
 1518       }
 1519       s/.*/./; q'`
 1520   srcdir=$ac_confdir
 1521   if test ! -r "$srcdir/$ac_unique_file"; then
 1522     srcdir=..
 1523   fi
 1524 else
 1525   ac_srcdir_defaulted=no
 1526 fi
 1527 if test ! -r "$srcdir/$ac_unique_file"; then
 1528   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
 1529   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 1530 fi
 1531 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 1532 ac_abs_confdir=`(
 1533     cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 1534     pwd)`
 1535 # When building in place, set srcdir=.
 1536 if test "$ac_abs_confdir" = "$ac_pwd"; then
 1537   srcdir=.
 1538 fi
 1539 # Remove unnecessary trailing slashes from srcdir.
 1540 # Double slashes in file names in object file debugging info
 1541 # mess up M-x gdb in Emacs.
 1542 case $srcdir in
 1543 */) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
 1544 esac
 1545 for ac_var in $ac_precious_vars; do
 1546   eval ac_env_${ac_var}_set=\${${ac_var}+set}
 1547   eval ac_env_${ac_var}_value=\$${ac_var}
 1548   eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
 1549   eval ac_cv_env_${ac_var}_value=\$${ac_var}
 1550 done
 1551 
 1552 #
 1553 # Report the --help message.
 1554 #
 1555 if test "$ac_init_help" = "long"; then
 1556   # Omit some internal or obsolete options to make the list less imposing.
 1557   # This message is too long to be a string in the A/UX 3.1 sh.
 1558   cat <<_ACEOF
 1559 \`configure' configures singular 4.2.1 to adapt to many kinds of systems.
 1560 
 1561 Usage: $0 [OPTION]... [VAR=VALUE]...
 1562 
 1563 To assign environment variables (e.g., CC, CFLAGS...), specify them as
 1564 VAR=VALUE.  See below for descriptions of some of the useful variables.
 1565 
 1566 Defaults for the options are specified in brackets.
 1567 
 1568 Configuration:
 1569   -h, --help              display this help and exit
 1570       --help=short        display options specific to this package
 1571       --help=recursive    display the short help of all the included packages
 1572   -V, --version           display version information and exit
 1573   -q, --quiet, --silent   do not print \`checking ...' messages
 1574       --cache-file=FILE   cache test results in FILE [disabled]
 1575   -C, --config-cache      alias for \`--cache-file=config.cache'
 1576   -n, --no-create         do not create output files
 1577       --srcdir=DIR        find the sources in DIR [configure dir or \`..']
 1578 
 1579 Installation directories:
 1580   --prefix=PREFIX         install architecture-independent files in PREFIX
 1581                           [$ac_default_prefix]
 1582   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
 1583                           [PREFIX]
 1584 
 1585 By default, \`make install' will install all the files in
 1586 \`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
 1587 an installation prefix other than \`$ac_default_prefix' using \`--prefix',
 1588 for instance \`--prefix=\$HOME'.
 1589 
 1590 For better control, use the options below.
 1591 
 1592 Fine tuning of the installation directories:
 1593   --bindir=DIR            user executables [EPREFIX/bin]
 1594   --sbindir=DIR           system admin executables [EPREFIX/sbin]
 1595   --libexecdir=DIR        program executables [EPREFIX/libexec]
 1596   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
 1597   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
 1598   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
 1599   --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
 1600   --libdir=DIR            object code libraries [EPREFIX/lib]
 1601   --includedir=DIR        C header files [PREFIX/include]
 1602   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
 1603   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
 1604   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
 1605   --infodir=DIR           info documentation [DATAROOTDIR/info]
 1606   --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
 1607   --mandir=DIR            man documentation [DATAROOTDIR/man]
 1608   --docdir=DIR            documentation root [DATAROOTDIR/doc/singular]
 1609   --htmldir=DIR           html documentation [DOCDIR]
 1610   --dvidir=DIR            dvi documentation [DOCDIR]
 1611   --pdfdir=DIR            pdf documentation [DOCDIR]
 1612   --psdir=DIR             ps documentation [DOCDIR]
 1613 _ACEOF
 1614 
 1615   cat <<\_ACEOF
 1616 
 1617 Program names:
 1618   --program-prefix=PREFIX            prepend PREFIX to installed program names
 1619   --program-suffix=SUFFIX            append SUFFIX to installed program names
 1620   --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
 1621 
 1622 System types:
 1623   --build=BUILD     configure for building on BUILD [guessed]
 1624   --host=HOST       cross-compile to build programs to run on HOST [BUILD]
 1625 _ACEOF
 1626 fi
 1627 
 1628 if test -n "$ac_init_help"; then
 1629   case $ac_init_help in
 1630      short | recursive ) echo "Configuration of singular 4.2.1:";;
 1631    esac
 1632   cat <<\_ACEOF
 1633 
 1634 Optional Features:
 1635   --disable-option-checking  ignore unrecognized --enable/--with options
 1636   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
 1637   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
 1638   --disable-maintainer-mode
 1639                           disable make rules and dependencies not useful (and
 1640                           sometimes confusing) to the casual installer
 1641   --enable-dependency-tracking
 1642                           do not reject slow dependency extractors
 1643   --disable-dependency-tracking
 1644                           speeds up one-time build
 1645   --enable-silent-rules   less verbose build output (undo: "make V=1")
 1646   --disable-silent-rules  verbose build output (undo: "make V=0")
 1647   --enable-debug          build the debugging version of the libraries
 1648   --disable-optimizationflags
 1649                           build the without default optimization flags
 1650   --enable-shared[=PKGS]  build shared libraries [default=yes]
 1651   --enable-static[=PKGS]  build static libraries [default=yes]
 1652   --enable-fast-install[=PKGS]
 1653                           optimize for fast installation [default=yes]
 1654   --disable-libtool-lock  avoid locking (might break parallel builds)
 1655   --enable-google-profiling
 1656                           compile with google profiling
 1657   --disable-omalloc       do NOT use omalloc within the factory
 1658   --disable-singular_resources
 1659                           do NOT use libsingular_resources within the factory
 1660   --enable-p-procs-static Enable statically compiled p_Procs-modules
 1661 
 1662   --enable-p-procs-dynamic Enable dynamically compiled p_Procs-modules
 1663 
 1664   --enable-dynamic-modules Enable dynamically compiled modules
 1665 
 1666   --enable-gfanlib        Enables gfanlib, a package for basic convex geometry
 1667   --disable-plural        Disable non-commutative subsystem
 1668   --enable-staticdemo-module
 1669                           Enable building optional module staticdemo
 1670   --enable-bigintm-module Enable building optional module bigintm
 1671   --enable-Order-module   Enable building optional module Order
 1672   --enable-python-module  Enable building optional module python
 1673   --disable-subsets-module
 1674                           Disable building module subsets
 1675   --disable-freealgebra-module
 1676                           Disable building module freealgebra
 1677   --disable-partialgb-module
 1678                           Disable building module partialgb
 1679   --disable-syzextra-module
 1680                           Disable building module syzextra
 1681   --disable-gfanlib-module
 1682                           Disable building module gfanlib
 1683   --disable-polymake-module
 1684                           Disable building module polymake
 1685   --disable-customstd-module
 1686                           Disable building module customstd
 1687   --disable-pyobject-module
 1688                           Disable building module pyobject
 1689   --disable-singmathic-module
 1690                           Disable building module singmathic
 1691   --disable-gitfan-module Disable building module gitfan
 1692   --disable-interval-module
 1693                           Disable building module interval
 1694   --disable-systhreads-module
 1695                           Disable building module systhreads
 1696   --disable-loctriv-module
 1697                           Disable building module loctriv
 1698   --disable-cohomo-module Disable building module cohomo
 1699   --disable-machinelearning-module
 1700                           Disable building module machinelearning
 1701   --enable-python[=PYTHON]
 1702                           absolute path name of Python executable
 1703   --enable-countedref     Enable autoloading of reference counted types
 1704   --enable-doc-build      Enable building the Singular documentation
 1705 
 1706 Optional Packages:
 1707   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
 1708   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
 1709   --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
 1710                           both]
 1711   --with-aix-soname=aix|svr4|both
 1712                           shared library versioning (aka "SONAME") variant to
 1713                           provide on AIX, [default=aix].
 1714   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
 1715   --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
 1716                           compiler's sysroot if not specified).
 1717   --with-gmp=path         provide a non-standard location of gmp
 1718   --with-ntl=<path>|yes|no  Use NTL library. If argument is no, you do not have
 1719                             the library installed on your machine (set as
 1720                 default). If argument is yes or <empty> that means
 1721                 the library is reachable with the standard search
 1722                 path (/usr or /usr/local). Otherwise you give the
 1723                 <path> to the directory which contain the library.
 1724 
 1725   --with-flint=<path>|yes|no  Use FLINT library. By default (yes), Singular will
 1726                             try to find the library and use it if found.
 1727                             If argument is no, Singular will not use the
 1728                             library even if it could be found on your machine.
 1729                             Otherwise you can give the <path> to the directory
 1730                             which contains the library.
 1731 
 1732   --with-google-perftools=DIR
 1733                           location of a google perftools installation (default
 1734                           none)
 1735   --with-ccluster= <path>|yes Use ccluster library.
 1736   --with-mathicgb=yes|no  Use the MathicGB library. Default is no.
 1737   --with-readline=dynamic,static,no,ncurses
 1738                         use dynamic/static/no readline/ncurses for fancy display
 1739   --without-dbm           do not use dbm (no DBM links)
 1740   --with-ratGB            do compile with ratGB support (experimental)
 1741   --with-builtinmodules   List of builtin modules (experimental), default:
 1742                           none
 1743   --with-python[=PYTHON]  absolute path name of Python executable
 1744   --with-libparse         compile and install libparse
 1745 
 1746 Some influential environment variables:
 1747   CC          C compiler command
 1748   CFLAGS      C compiler flags
 1749   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
 1750               nonstandard directory <lib dir>
 1751   LIBS        libraries to pass to the linker, e.g. -l<library>
 1752   CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
 1753               you have headers in a nonstandard directory <include dir>
 1754   CPP         C preprocessor
 1755   CXX         C++ compiler command
 1756   CXXFLAGS    C++ compiler flags
 1757   CXXCPP      C++ preprocessor
 1758   LT_SYS_LIBRARY_PATH
 1759               User-defined run-time library search path.
 1760   BUILTIN_LIBS
 1761               LIB FLAGS for buildins
 1762   PYTHON      Python Executable Path
 1763 
 1764 Use these variables to override the choices made by `configure' or to help
 1765 it to find libraries and programs with nonstandard names/locations.
 1766 
 1767 Report bugs to <singular@mathematik.uni-kl.de>.
 1768 _ACEOF
 1769 ac_status=$?
 1770 fi
 1771 
 1772 if test "$ac_init_help" = "recursive"; then
 1773   # If there are subdirs, report their specific --help.
 1774   for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
 1775     test -d "$ac_dir" ||
 1776       { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
 1777       continue
 1778     ac_builddir=.
 1779 
 1780 case "$ac_dir" in
 1781 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 1782 *)
 1783   ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
 1784   # A ".." for each directory in $ac_dir_suffix.
 1785   ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
 1786   case $ac_top_builddir_sub in
 1787   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
 1788   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
 1789   esac ;;
 1790 esac
 1791 ac_abs_top_builddir=$ac_pwd
 1792 ac_abs_builddir=$ac_pwd$ac_dir_suffix
 1793 # for backward compatibility:
 1794 ac_top_builddir=$ac_top_build_prefix
 1795 
 1796 case $srcdir in
 1797   .)  # We are building in place.
 1798     ac_srcdir=.
 1799     ac_top_srcdir=$ac_top_builddir_sub
 1800     ac_abs_top_srcdir=$ac_pwd ;;
 1801   [\\/]* | ?:[\\/]* )  # Absolute name.
 1802     ac_srcdir=$srcdir$ac_dir_suffix;
 1803     ac_top_srcdir=$srcdir
 1804     ac_abs_top_srcdir=$srcdir ;;
 1805   *) # Relative name.
 1806     ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
 1807     ac_top_srcdir=$ac_top_build_prefix$srcdir
 1808     ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
 1809 esac
 1810 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 1811 
 1812     cd "$ac_dir" || { ac_status=$?; continue; }
 1813     # Check for guested configure.
 1814     if test -f "$ac_srcdir/configure.gnu"; then
 1815       echo &&
 1816       $SHELL "$ac_srcdir/configure.gnu" --help=recursive
 1817     elif test -f "$ac_srcdir/configure"; then
 1818       echo &&
 1819       $SHELL "$ac_srcdir/configure" --help=recursive
 1820     else
 1821       $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
 1822     fi || ac_status=$?
 1823     cd "$ac_pwd" || { ac_status=$?; break; }
 1824   done
 1825 fi
 1826 
 1827 test -n "$ac_init_help" && exit $ac_status
 1828 if $ac_init_version; then
 1829   cat <<\_ACEOF
 1830 singular configure 4.2.1
 1831 generated by GNU Autoconf 2.69
 1832 
 1833 Copyright (C) 2012 Free Software Foundation, Inc.
 1834 This configure script is free software; the Free Software Foundation
 1835 gives unlimited permission to copy, distribute and modify it.
 1836 _ACEOF
 1837   exit
 1838 fi
 1839 
 1840 ## ------------------------ ##
 1841 ## Autoconf initialization. ##
 1842 ## ------------------------ ##
 1843 
 1844 # ac_fn_c_try_compile LINENO
 1845 # --------------------------
 1846 # Try to compile conftest.$ac_ext, and return whether this succeeded.
 1847 ac_fn_c_try_compile ()
 1848 {
 1849   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 1850   rm -f conftest.$ac_objext
 1851   if { { ac_try="$ac_compile"
 1852 case "(($ac_try" in
 1853   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 1854   *) ac_try_echo=$ac_try;;
 1855 esac
 1856 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 1857 $as_echo "$ac_try_echo"; } >&5
 1858   (eval "$ac_compile") 2>conftest.err
 1859   ac_status=$?
 1860   if test -s conftest.err; then
 1861     grep -v '^ *+' conftest.err >conftest.er1
 1862     cat conftest.er1 >&5
 1863     mv -f conftest.er1 conftest.err
 1864   fi
 1865   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 1866   test $ac_status = 0; } && {
 1867      test -z "$ac_c_werror_flag" ||
 1868      test ! -s conftest.err
 1869        } && test -s conftest.$ac_objext; then :
 1870   ac_retval=0
 1871 else
 1872   $as_echo "$as_me: failed program was:" >&5
 1873 sed 's/^/| /' conftest.$ac_ext >&5
 1874 
 1875     ac_retval=1
 1876 fi
 1877   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 1878   as_fn_set_status $ac_retval
 1879 
 1880 } # ac_fn_c_try_compile
 1881 
 1882 # ac_fn_c_try_cpp LINENO
 1883 # ----------------------
 1884 # Try to preprocess conftest.$ac_ext, and return whether this succeeded.
 1885 ac_fn_c_try_cpp ()
 1886 {
 1887   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 1888   if { { ac_try="$ac_cpp conftest.$ac_ext"
 1889 case "(($ac_try" in
 1890   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 1891   *) ac_try_echo=$ac_try;;
 1892 esac
 1893 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 1894 $as_echo "$ac_try_echo"; } >&5
 1895   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
 1896   ac_status=$?
 1897   if test -s conftest.err; then
 1898     grep -v '^ *+' conftest.err >conftest.er1
 1899     cat conftest.er1 >&5
 1900     mv -f conftest.er1 conftest.err
 1901   fi
 1902   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 1903   test $ac_status = 0; } > conftest.i && {
 1904      test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
 1905      test ! -s conftest.err
 1906        }; then :
 1907   ac_retval=0
 1908 else
 1909   $as_echo "$as_me: failed program was:" >&5
 1910 sed 's/^/| /' conftest.$ac_ext >&5
 1911 
 1912     ac_retval=1
 1913 fi
 1914   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 1915   as_fn_set_status $ac_retval
 1916 
 1917 } # ac_fn_c_try_cpp
 1918 
 1919 # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
 1920 # -------------------------------------------------------
 1921 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
 1922 # the include files in INCLUDES and setting the cache variable VAR
 1923 # accordingly.
 1924 ac_fn_c_check_header_mongrel ()
 1925 {
 1926   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 1927   if eval \${$3+:} false; then :
 1928   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 1929 $as_echo_n "checking for $2... " >&6; }
 1930 if eval \${$3+:} false; then :
 1931   $as_echo_n "(cached) " >&6
 1932 fi
 1933 eval ac_res=\$$3
 1934            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 1935 $as_echo "$ac_res" >&6; }
 1936 else
 1937   # Is the header compilable?
 1938 { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
 1939 $as_echo_n "checking $2 usability... " >&6; }
 1940 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 1941 /* end confdefs.h.  */
 1942 $4
 1943 #include <$2>
 1944 _ACEOF
 1945 if ac_fn_c_try_compile "$LINENO"; then :
 1946   ac_header_compiler=yes
 1947 else
 1948   ac_header_compiler=no
 1949 fi
 1950 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 1951 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
 1952 $as_echo "$ac_header_compiler" >&6; }
 1953 
 1954 # Is the header present?
 1955 { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
 1956 $as_echo_n "checking $2 presence... " >&6; }
 1957 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 1958 /* end confdefs.h.  */
 1959 #include <$2>
 1960 _ACEOF
 1961 if ac_fn_c_try_cpp "$LINENO"; then :
 1962   ac_header_preproc=yes
 1963 else
 1964   ac_header_preproc=no
 1965 fi
 1966 rm -f conftest.err conftest.i conftest.$ac_ext
 1967 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
 1968 $as_echo "$ac_header_preproc" >&6; }
 1969 
 1970 # So?  What about this header?
 1971 case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
 1972   yes:no: )
 1973     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
 1974 $as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
 1975     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
 1976 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
 1977     ;;
 1978   no:yes:* )
 1979     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
 1980 $as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
 1981     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
 1982 $as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
 1983     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
 1984 $as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
 1985     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
 1986 $as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
 1987     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
 1988 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
 1989 ( $as_echo "## -------------------------------------------- ##
 1990 ## Report this to singular@mathematik.uni-kl.de ##
 1991 ## -------------------------------------------- ##"
 1992      ) | sed "s/^/$as_me: WARNING:     /" >&2
 1993     ;;
 1994 esac
 1995   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 1996 $as_echo_n "checking for $2... " >&6; }
 1997 if eval \${$3+:} false; then :
 1998   $as_echo_n "(cached) " >&6
 1999 else
 2000   eval "$3=\$ac_header_compiler"
 2001 fi
 2002 eval ac_res=\$$3
 2003            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 2004 $as_echo "$ac_res" >&6; }
 2005 fi
 2006   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2007 
 2008 } # ac_fn_c_check_header_mongrel
 2009 
 2010 # ac_fn_c_try_run LINENO
 2011 # ----------------------
 2012 # Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
 2013 # that executables *can* be run.
 2014 ac_fn_c_try_run ()
 2015 {
 2016   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2017   if { { ac_try="$ac_link"
 2018 case "(($ac_try" in
 2019   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2020   *) ac_try_echo=$ac_try;;
 2021 esac
 2022 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2023 $as_echo "$ac_try_echo"; } >&5
 2024   (eval "$ac_link") 2>&5
 2025   ac_status=$?
 2026   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2027   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
 2028   { { case "(($ac_try" in
 2029   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2030   *) ac_try_echo=$ac_try;;
 2031 esac
 2032 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2033 $as_echo "$ac_try_echo"; } >&5
 2034   (eval "$ac_try") 2>&5
 2035   ac_status=$?
 2036   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2037   test $ac_status = 0; }; }; then :
 2038   ac_retval=0
 2039 else
 2040   $as_echo "$as_me: program exited with status $ac_status" >&5
 2041        $as_echo "$as_me: failed program was:" >&5
 2042 sed 's/^/| /' conftest.$ac_ext >&5
 2043 
 2044        ac_retval=$ac_status
 2045 fi
 2046   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
 2047   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2048   as_fn_set_status $ac_retval
 2049 
 2050 } # ac_fn_c_try_run
 2051 
 2052 # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
 2053 # -------------------------------------------------------
 2054 # Tests whether HEADER exists and can be compiled using the include files in
 2055 # INCLUDES, setting the cache variable VAR accordingly.
 2056 ac_fn_c_check_header_compile ()
 2057 {
 2058   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2059   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 2060 $as_echo_n "checking for $2... " >&6; }
 2061 if eval \${$3+:} false; then :
 2062   $as_echo_n "(cached) " >&6
 2063 else
 2064   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2065 /* end confdefs.h.  */
 2066 $4
 2067 #include <$2>
 2068 _ACEOF
 2069 if ac_fn_c_try_compile "$LINENO"; then :
 2070   eval "$3=yes"
 2071 else
 2072   eval "$3=no"
 2073 fi
 2074 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2075 fi
 2076 eval ac_res=\$$3
 2077            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 2078 $as_echo "$ac_res" >&6; }
 2079   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2080 
 2081 } # ac_fn_c_check_header_compile
 2082 
 2083 # ac_fn_cxx_try_compile LINENO
 2084 # ----------------------------
 2085 # Try to compile conftest.$ac_ext, and return whether this succeeded.
 2086 ac_fn_cxx_try_compile ()
 2087 {
 2088   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2089   rm -f conftest.$ac_objext
 2090   if { { ac_try="$ac_compile"
 2091 case "(($ac_try" in
 2092   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2093   *) ac_try_echo=$ac_try;;
 2094 esac
 2095 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2096 $as_echo "$ac_try_echo"; } >&5
 2097   (eval "$ac_compile") 2>conftest.err
 2098   ac_status=$?
 2099   if test -s conftest.err; then
 2100     grep -v '^ *+' conftest.err >conftest.er1
 2101     cat conftest.er1 >&5
 2102     mv -f conftest.er1 conftest.err
 2103   fi
 2104   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2105   test $ac_status = 0; } && {
 2106      test -z "$ac_cxx_werror_flag" ||
 2107      test ! -s conftest.err
 2108        } && test -s conftest.$ac_objext; then :
 2109   ac_retval=0
 2110 else
 2111   $as_echo "$as_me: failed program was:" >&5
 2112 sed 's/^/| /' conftest.$ac_ext >&5
 2113 
 2114     ac_retval=1
 2115 fi
 2116   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2117   as_fn_set_status $ac_retval
 2118 
 2119 } # ac_fn_cxx_try_compile
 2120 
 2121 # ac_fn_c_try_link LINENO
 2122 # -----------------------
 2123 # Try to link conftest.$ac_ext, and return whether this succeeded.
 2124 ac_fn_c_try_link ()
 2125 {
 2126   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2127   rm -f conftest.$ac_objext conftest$ac_exeext
 2128   if { { ac_try="$ac_link"
 2129 case "(($ac_try" in
 2130   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2131   *) ac_try_echo=$ac_try;;
 2132 esac
 2133 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2134 $as_echo "$ac_try_echo"; } >&5
 2135   (eval "$ac_link") 2>conftest.err
 2136   ac_status=$?
 2137   if test -s conftest.err; then
 2138     grep -v '^ *+' conftest.err >conftest.er1
 2139     cat conftest.er1 >&5
 2140     mv -f conftest.er1 conftest.err
 2141   fi
 2142   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2143   test $ac_status = 0; } && {
 2144      test -z "$ac_c_werror_flag" ||
 2145      test ! -s conftest.err
 2146        } && test -s conftest$ac_exeext && {
 2147      test "$cross_compiling" = yes ||
 2148      test -x conftest$ac_exeext
 2149        }; then :
 2150   ac_retval=0
 2151 else
 2152   $as_echo "$as_me: failed program was:" >&5
 2153 sed 's/^/| /' conftest.$ac_ext >&5
 2154 
 2155     ac_retval=1
 2156 fi
 2157   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
 2158   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
 2159   # interfere with the next link command; also delete a directory that is
 2160   # left behind by Apple's compiler.  We do this before executing the actions.
 2161   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
 2162   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2163   as_fn_set_status $ac_retval
 2164 
 2165 } # ac_fn_c_try_link
 2166 
 2167 # ac_fn_cxx_try_cpp LINENO
 2168 # ------------------------
 2169 # Try to preprocess conftest.$ac_ext, and return whether this succeeded.
 2170 ac_fn_cxx_try_cpp ()
 2171 {
 2172   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2173   if { { ac_try="$ac_cpp conftest.$ac_ext"
 2174 case "(($ac_try" in
 2175   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2176   *) ac_try_echo=$ac_try;;
 2177 esac
 2178 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2179 $as_echo "$ac_try_echo"; } >&5
 2180   (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
 2181   ac_status=$?
 2182   if test -s conftest.err; then
 2183     grep -v '^ *+' conftest.err >conftest.er1
 2184     cat conftest.er1 >&5
 2185     mv -f conftest.er1 conftest.err
 2186   fi
 2187   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2188   test $ac_status = 0; } > conftest.i && {
 2189      test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
 2190      test ! -s conftest.err
 2191        }; then :
 2192   ac_retval=0
 2193 else
 2194   $as_echo "$as_me: failed program was:" >&5
 2195 sed 's/^/| /' conftest.$ac_ext >&5
 2196 
 2197     ac_retval=1
 2198 fi
 2199   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2200   as_fn_set_status $ac_retval
 2201 
 2202 } # ac_fn_cxx_try_cpp
 2203 
 2204 # ac_fn_c_check_func LINENO FUNC VAR
 2205 # ----------------------------------
 2206 # Tests whether FUNC exists, setting the cache variable VAR accordingly
 2207 ac_fn_c_check_func ()
 2208 {
 2209   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2210   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 2211 $as_echo_n "checking for $2... " >&6; }
 2212 if eval \${$3+:} false; then :
 2213   $as_echo_n "(cached) " >&6
 2214 else
 2215   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2216 /* end confdefs.h.  */
 2217 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
 2218    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
 2219 #define $2 innocuous_$2
 2220 
 2221 /* System header to define __stub macros and hopefully few prototypes,
 2222     which can conflict with char $2 (); below.
 2223     Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
 2224     <limits.h> exists even on freestanding compilers.  */
 2225 
 2226 #ifdef __STDC__
 2227 # include <limits.h>
 2228 #else
 2229 # include <assert.h>
 2230 #endif
 2231 
 2232 #undef $2
 2233 
 2234 /* Override any GCC internal prototype to avoid an error.
 2235    Use char because int might match the return type of a GCC
 2236    builtin and then its argument prototype would still apply.  */
 2237 #ifdef __cplusplus
 2238 extern "C"
 2239 #endif
 2240 char $2 ();
 2241 /* The GNU C library defines this for functions which it implements
 2242     to always fail with ENOSYS.  Some functions are actually named
 2243     something starting with __ and the normal name is an alias.  */
 2244 #if defined __stub_$2 || defined __stub___$2
 2245 choke me
 2246 #endif
 2247 
 2248 int
 2249 main ()
 2250 {
 2251 return $2 ();
 2252   ;
 2253   return 0;
 2254 }
 2255 _ACEOF
 2256 if ac_fn_c_try_link "$LINENO"; then :
 2257   eval "$3=yes"
 2258 else
 2259   eval "$3=no"
 2260 fi
 2261 rm -f core conftest.err conftest.$ac_objext \
 2262     conftest$ac_exeext conftest.$ac_ext
 2263 fi
 2264 eval ac_res=\$$3
 2265            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 2266 $as_echo "$ac_res" >&6; }
 2267   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2268 
 2269 } # ac_fn_c_check_func
 2270 
 2271 # ac_fn_cxx_try_link LINENO
 2272 # -------------------------
 2273 # Try to link conftest.$ac_ext, and return whether this succeeded.
 2274 ac_fn_cxx_try_link ()
 2275 {
 2276   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2277   rm -f conftest.$ac_objext conftest$ac_exeext
 2278   if { { ac_try="$ac_link"
 2279 case "(($ac_try" in
 2280   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2281   *) ac_try_echo=$ac_try;;
 2282 esac
 2283 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2284 $as_echo "$ac_try_echo"; } >&5
 2285   (eval "$ac_link") 2>conftest.err
 2286   ac_status=$?
 2287   if test -s conftest.err; then
 2288     grep -v '^ *+' conftest.err >conftest.er1
 2289     cat conftest.er1 >&5
 2290     mv -f conftest.er1 conftest.err
 2291   fi
 2292   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2293   test $ac_status = 0; } && {
 2294      test -z "$ac_cxx_werror_flag" ||
 2295      test ! -s conftest.err
 2296        } && test -s conftest$ac_exeext && {
 2297      test "$cross_compiling" = yes ||
 2298      test -x conftest$ac_exeext
 2299        }; then :
 2300   ac_retval=0
 2301 else
 2302   $as_echo "$as_me: failed program was:" >&5
 2303 sed 's/^/| /' conftest.$ac_ext >&5
 2304 
 2305     ac_retval=1
 2306 fi
 2307   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
 2308   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
 2309   # interfere with the next link command; also delete a directory that is
 2310   # left behind by Apple's compiler.  We do this before executing the actions.
 2311   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
 2312   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2313   as_fn_set_status $ac_retval
 2314 
 2315 } # ac_fn_cxx_try_link
 2316 
 2317 # ac_fn_cxx_try_run LINENO
 2318 # ------------------------
 2319 # Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
 2320 # that executables *can* be run.
 2321 ac_fn_cxx_try_run ()
 2322 {
 2323   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2324   if { { ac_try="$ac_link"
 2325 case "(($ac_try" in
 2326   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2327   *) ac_try_echo=$ac_try;;
 2328 esac
 2329 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2330 $as_echo "$ac_try_echo"; } >&5
 2331   (eval "$ac_link") 2>&5
 2332   ac_status=$?
 2333   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2334   test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
 2335   { { case "(($ac_try" in
 2336   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 2337   *) ac_try_echo=$ac_try;;
 2338 esac
 2339 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 2340 $as_echo "$ac_try_echo"; } >&5
 2341   (eval "$ac_try") 2>&5
 2342   ac_status=$?
 2343   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 2344   test $ac_status = 0; }; }; then :
 2345   ac_retval=0
 2346 else
 2347   $as_echo "$as_me: program exited with status $ac_status" >&5
 2348        $as_echo "$as_me: failed program was:" >&5
 2349 sed 's/^/| /' conftest.$ac_ext >&5
 2350 
 2351        ac_retval=$ac_status
 2352 fi
 2353   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
 2354   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2355   as_fn_set_status $ac_retval
 2356 
 2357 } # ac_fn_cxx_try_run
 2358 
 2359 # ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
 2360 # ---------------------------------------------------------
 2361 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
 2362 # the include files in INCLUDES and setting the cache variable VAR
 2363 # accordingly.
 2364 ac_fn_cxx_check_header_mongrel ()
 2365 {
 2366   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2367   if eval \${$3+:} false; then :
 2368   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 2369 $as_echo_n "checking for $2... " >&6; }
 2370 if eval \${$3+:} false; then :
 2371   $as_echo_n "(cached) " >&6
 2372 fi
 2373 eval ac_res=\$$3
 2374            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 2375 $as_echo "$ac_res" >&6; }
 2376 else
 2377   # Is the header compilable?
 2378 { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
 2379 $as_echo_n "checking $2 usability... " >&6; }
 2380 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2381 /* end confdefs.h.  */
 2382 $4
 2383 #include <$2>
 2384 _ACEOF
 2385 if ac_fn_cxx_try_compile "$LINENO"; then :
 2386   ac_header_compiler=yes
 2387 else
 2388   ac_header_compiler=no
 2389 fi
 2390 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2391 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
 2392 $as_echo "$ac_header_compiler" >&6; }
 2393 
 2394 # Is the header present?
 2395 { $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
 2396 $as_echo_n "checking $2 presence... " >&6; }
 2397 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2398 /* end confdefs.h.  */
 2399 #include <$2>
 2400 _ACEOF
 2401 if ac_fn_cxx_try_cpp "$LINENO"; then :
 2402   ac_header_preproc=yes
 2403 else
 2404   ac_header_preproc=no
 2405 fi
 2406 rm -f conftest.err conftest.i conftest.$ac_ext
 2407 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
 2408 $as_echo "$ac_header_preproc" >&6; }
 2409 
 2410 # So?  What about this header?
 2411 case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
 2412   yes:no: )
 2413     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
 2414 $as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
 2415     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
 2416 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
 2417     ;;
 2418   no:yes:* )
 2419     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
 2420 $as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
 2421     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
 2422 $as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
 2423     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
 2424 $as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
 2425     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
 2426 $as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
 2427     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
 2428 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
 2429 ( $as_echo "## -------------------------------------------- ##
 2430 ## Report this to singular@mathematik.uni-kl.de ##
 2431 ## -------------------------------------------- ##"
 2432      ) | sed "s/^/$as_me: WARNING:     /" >&2
 2433     ;;
 2434 esac
 2435   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 2436 $as_echo_n "checking for $2... " >&6; }
 2437 if eval \${$3+:} false; then :
 2438   $as_echo_n "(cached) " >&6
 2439 else
 2440   eval "$3=\$ac_header_compiler"
 2441 fi
 2442 eval ac_res=\$$3
 2443            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 2444 $as_echo "$ac_res" >&6; }
 2445 fi
 2446   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2447 
 2448 } # ac_fn_cxx_check_header_mongrel
 2449 
 2450 # ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
 2451 # --------------------------------------------
 2452 # Tries to find the compile-time value of EXPR in a program that includes
 2453 # INCLUDES, setting VAR accordingly. Returns whether the value could be
 2454 # computed
 2455 ac_fn_c_compute_int ()
 2456 {
 2457   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
 2458   if test "$cross_compiling" = yes; then
 2459     # Depending upon the size, compute the lo and hi bounds.
 2460 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2461 /* end confdefs.h.  */
 2462 $4
 2463 int
 2464 main ()
 2465 {
 2466 static int test_array [1 - 2 * !(($2) >= 0)];
 2467 test_array [0] = 0;
 2468 return test_array [0];
 2469 
 2470   ;
 2471   return 0;
 2472 }
 2473 _ACEOF
 2474 if ac_fn_c_try_compile "$LINENO"; then :
 2475   ac_lo=0 ac_mid=0
 2476   while :; do
 2477     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2478 /* end confdefs.h.  */
 2479 $4
 2480 int
 2481 main ()
 2482 {
 2483 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
 2484 test_array [0] = 0;
 2485 return test_array [0];
 2486 
 2487   ;
 2488   return 0;
 2489 }
 2490 _ACEOF
 2491 if ac_fn_c_try_compile "$LINENO"; then :
 2492   ac_hi=$ac_mid; break
 2493 else
 2494   as_fn_arith $ac_mid + 1 && ac_lo=$as_val
 2495             if test $ac_lo -le $ac_mid; then
 2496               ac_lo= ac_hi=
 2497               break
 2498             fi
 2499             as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
 2500 fi
 2501 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2502   done
 2503 else
 2504   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2505 /* end confdefs.h.  */
 2506 $4
 2507 int
 2508 main ()
 2509 {
 2510 static int test_array [1 - 2 * !(($2) < 0)];
 2511 test_array [0] = 0;
 2512 return test_array [0];
 2513 
 2514   ;
 2515   return 0;
 2516 }
 2517 _ACEOF
 2518 if ac_fn_c_try_compile "$LINENO"; then :
 2519   ac_hi=-1 ac_mid=-1
 2520   while :; do
 2521     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2522 /* end confdefs.h.  */
 2523 $4
 2524 int
 2525 main ()
 2526 {
 2527 static int test_array [1 - 2 * !(($2) >= $ac_mid)];
 2528 test_array [0] = 0;
 2529 return test_array [0];
 2530 
 2531   ;
 2532   return 0;
 2533 }
 2534 _ACEOF
 2535 if ac_fn_c_try_compile "$LINENO"; then :
 2536   ac_lo=$ac_mid; break
 2537 else
 2538   as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
 2539             if test $ac_mid -le $ac_hi; then
 2540               ac_lo= ac_hi=
 2541               break
 2542             fi
 2543             as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
 2544 fi
 2545 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2546   done
 2547 else
 2548   ac_lo= ac_hi=
 2549 fi
 2550 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2551 fi
 2552 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2553 # Binary search between lo and hi bounds.
 2554 while test "x$ac_lo" != "x$ac_hi"; do
 2555   as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
 2556   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2557 /* end confdefs.h.  */
 2558 $4
 2559 int
 2560 main ()
 2561 {
 2562 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
 2563 test_array [0] = 0;
 2564 return test_array [0];
 2565 
 2566   ;
 2567   return 0;
 2568 }
 2569 _ACEOF
 2570 if ac_fn_c_try_compile "$LINENO"; then :
 2571   ac_hi=$ac_mid
 2572 else
 2573   as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
 2574 fi
 2575 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 2576 done
 2577 case $ac_lo in #((
 2578 ?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
 2579 '') ac_retval=1 ;;
 2580 esac
 2581   else
 2582     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 2583 /* end confdefs.h.  */
 2584 $4
 2585 static long int longval () { return $2; }
 2586 static unsigned long int ulongval () { return $2; }
 2587 #include <stdio.h>
 2588 #include <stdlib.h>
 2589 int
 2590 main ()
 2591 {
 2592 
 2593   FILE *f = fopen ("conftest.val", "w");
 2594   if (! f)
 2595     return 1;
 2596   if (($2) < 0)
 2597     {
 2598       long int i = longval ();
 2599       if (i != ($2))
 2600     return 1;
 2601       fprintf (f, "%ld", i);
 2602     }
 2603   else
 2604     {
 2605       unsigned long int i = ulongval ();
 2606       if (i != ($2))
 2607     return 1;
 2608       fprintf (f, "%lu", i);
 2609     }
 2610   /* Do not output a trailing newline, as this causes \r\n confusion
 2611      on some platforms.  */
 2612   return ferror (f) || fclose (f) != 0;
 2613 
 2614   ;
 2615   return 0;
 2616 }
 2617 _ACEOF
 2618 if ac_fn_c_try_run "$LINENO"; then :
 2619   echo >>conftest.val; read $3 <conftest.val; ac_retval=0
 2620 else
 2621   ac_retval=1
 2622 fi
 2623 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 2624   conftest.$ac_objext conftest.beam conftest.$ac_ext
 2625 rm -f conftest.val
 2626 
 2627   fi
 2628   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 2629   as_fn_set_status $ac_retval
 2630 
 2631 } # ac_fn_c_compute_int
 2632 cat >config.log <<_ACEOF
 2633 This file contains any messages produced by compilers while
 2634 running configure, to aid debugging if configure makes a mistake.
 2635 
 2636 It was created by singular $as_me 4.2.1, which was
 2637 generated by GNU Autoconf 2.69.  Invocation command line was
 2638 
 2639   $ $0 $@
 2640 
 2641 _ACEOF
 2642 exec 5>>config.log
 2643 {
 2644 cat <<_ASUNAME
 2645 ## --------- ##
 2646 ## Platform. ##
 2647 ## --------- ##
 2648 
 2649 hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
 2650 uname -m = `(uname -m) 2>/dev/null || echo unknown`
 2651 uname -r = `(uname -r) 2>/dev/null || echo unknown`
 2652 uname -s = `(uname -s) 2>/dev/null || echo unknown`
 2653 uname -v = `(uname -v) 2>/dev/null || echo unknown`
 2654 
 2655 /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
 2656 /bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
 2657 
 2658 /bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
 2659 /usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
 2660 /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
 2661 /usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
 2662 /bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
 2663 /usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
 2664 /bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
 2665 
 2666 _ASUNAME
 2667 
 2668 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 2669 for as_dir in $PATH
 2670 do
 2671   IFS=$as_save_IFS
 2672   test -z "$as_dir" && as_dir=.
 2673     $as_echo "PATH: $as_dir"
 2674   done
 2675 IFS=$as_save_IFS
 2676 
 2677 } >&5
 2678 
 2679 cat >&5 <<_ACEOF
 2680 
 2681 
 2682 ## ----------- ##
 2683 ## Core tests. ##
 2684 ## ----------- ##
 2685 
 2686 _ACEOF
 2687 
 2688 
 2689 # Keep a trace of the command line.
 2690 # Strip out --no-create and --no-recursion so they do not pile up.
 2691 # Strip out --silent because we don't want to record it for future runs.
 2692 # Also quote any args containing shell meta-characters.
 2693 # Make two passes to allow for proper duplicate-argument suppression.
 2694 ac_configure_args=
 2695 ac_configure_args0=
 2696 ac_configure_args1=
 2697 ac_must_keep_next=false
 2698 for ac_pass in 1 2
 2699 do
 2700   for ac_arg
 2701   do
 2702     case $ac_arg in
 2703     -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
 2704     -q | -quiet | --quiet | --quie | --qui | --qu | --q \
 2705     | -silent | --silent | --silen | --sile | --sil)
 2706       continue ;;
 2707     *\'*)
 2708       ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
 2709     esac
 2710     case $ac_pass in
 2711     1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
 2712     2)
 2713       as_fn_append ac_configure_args1 " '$ac_arg'"
 2714       if test $ac_must_keep_next = true; then
 2715     ac_must_keep_next=false # Got value, back to normal.
 2716       else
 2717     case $ac_arg in
 2718       *=* | --config-cache | -C | -disable-* | --disable-* \
 2719       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
 2720       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
 2721       | -with-* | --with-* | -without-* | --without-* | --x)
 2722         case "$ac_configure_args0 " in
 2723           "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
 2724         esac
 2725         ;;
 2726       -* ) ac_must_keep_next=true ;;
 2727     esac
 2728       fi
 2729       as_fn_append ac_configure_args " '$ac_arg'"
 2730       ;;
 2731     esac
 2732   done
 2733 done
 2734 { ac_configure_args0=; unset ac_configure_args0;}
 2735 { ac_configure_args1=; unset ac_configure_args1;}
 2736 
 2737 # When interrupted or exit'd, cleanup temporary files, and complete
 2738 # config.log.  We remove comments because anyway the quotes in there
 2739 # would cause problems or look ugly.
 2740 # WARNING: Use '\'' to represent an apostrophe within the trap.
 2741 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
 2742 trap 'exit_status=$?
 2743   # Save into config.log some information that might help in debugging.
 2744   {
 2745     echo
 2746 
 2747     $as_echo "## ---------------- ##
 2748 ## Cache variables. ##
 2749 ## ---------------- ##"
 2750     echo
 2751     # The following way of writing the cache mishandles newlines in values,
 2752 (
 2753   for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
 2754     eval ac_val=\$$ac_var
 2755     case $ac_val in #(
 2756     *${as_nl}*)
 2757       case $ac_var in #(
 2758       *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
 2759 $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 2760       esac
 2761       case $ac_var in #(
 2762       _ | IFS | as_nl) ;; #(
 2763       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
 2764       *) { eval $ac_var=; unset $ac_var;} ;;
 2765       esac ;;
 2766     esac
 2767   done
 2768   (set) 2>&1 |
 2769     case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
 2770     *${as_nl}ac_space=\ *)
 2771       sed -n \
 2772     "s/'\''/'\''\\\\'\'''\''/g;
 2773       s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
 2774       ;; #(
 2775     *)
 2776       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
 2777       ;;
 2778     esac |
 2779     sort
 2780 )
 2781     echo
 2782 
 2783     $as_echo "## ----------------- ##
 2784 ## Output variables. ##
 2785 ## ----------------- ##"
 2786     echo
 2787     for ac_var in $ac_subst_vars
 2788     do
 2789       eval ac_val=\$$ac_var
 2790       case $ac_val in
 2791       *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 2792       esac
 2793       $as_echo "$ac_var='\''$ac_val'\''"
 2794     done | sort
 2795     echo
 2796 
 2797     if test -n "$ac_subst_files"; then
 2798       $as_echo "## ------------------- ##
 2799 ## File substitutions. ##
 2800 ## ------------------- ##"
 2801       echo
 2802       for ac_var in $ac_subst_files
 2803       do
 2804     eval ac_val=\$$ac_var
 2805     case $ac_val in
 2806     *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 2807     esac
 2808     $as_echo "$ac_var='\''$ac_val'\''"
 2809       done | sort
 2810       echo
 2811     fi
 2812 
 2813     if test -s confdefs.h; then
 2814       $as_echo "## ----------- ##
 2815 ## confdefs.h. ##
 2816 ## ----------- ##"
 2817       echo
 2818       cat confdefs.h
 2819       echo
 2820     fi
 2821     test "$ac_signal" != 0 &&
 2822       $as_echo "$as_me: caught signal $ac_signal"
 2823     $as_echo "$as_me: exit $exit_status"
 2824   } >&5
 2825   rm -f core *.core core.conftest.* &&
 2826     rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
 2827     exit $exit_status
 2828 ' 0
 2829 for ac_signal in 1 2 13 15; do
 2830   trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 2831 done
 2832 ac_signal=0
 2833 
 2834 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 2835 rm -f -r conftest* confdefs.h
 2836 
 2837 $as_echo "/* confdefs.h */" > confdefs.h
 2838 
 2839 # Predefined preprocessor variables.
 2840 
 2841 cat >>confdefs.h <<_ACEOF
 2842 #define PACKAGE_NAME "$PACKAGE_NAME"
 2843 _ACEOF
 2844 
 2845 cat >>confdefs.h <<_ACEOF
 2846 #define PACKAGE_TARNAME "$PACKAGE_TARNAME"
 2847 _ACEOF
 2848 
 2849 cat >>confdefs.h <<_ACEOF
 2850 #define PACKAGE_VERSION "$PACKAGE_VERSION"
 2851 _ACEOF
 2852 
 2853 cat >>confdefs.h <<_ACEOF
 2854 #define PACKAGE_STRING "$PACKAGE_STRING"
 2855 _ACEOF
 2856 
 2857 cat >>confdefs.h <<_ACEOF
 2858 #define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
 2859 _ACEOF
 2860 
 2861 cat >>confdefs.h <<_ACEOF
 2862 #define PACKAGE_URL "$PACKAGE_URL"
 2863 _ACEOF
 2864 
 2865 
 2866 # Let the site file select an alternate cache file if it wants to.
 2867 # Prefer an explicitly selected file to automatically selected ones.
 2868 ac_site_file1=NONE
 2869 ac_site_file2=NONE
 2870 if test -n "$CONFIG_SITE"; then
 2871   # We do not want a PATH search for config.site.
 2872   case $CONFIG_SITE in #((
 2873     -*)  ac_site_file1=./$CONFIG_SITE;;
 2874     */*) ac_site_file1=$CONFIG_SITE;;
 2875     *)   ac_site_file1=./$CONFIG_SITE;;
 2876   esac
 2877 elif test "x$prefix" != xNONE; then
 2878   ac_site_file1=$prefix/share/config.site
 2879   ac_site_file2=$prefix/etc/config.site
 2880 else
 2881   ac_site_file1=$ac_default_prefix/share/config.site
 2882   ac_site_file2=$ac_default_prefix/etc/config.site
 2883 fi
 2884 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
 2885 do
 2886   test "x$ac_site_file" = xNONE && continue
 2887   if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
 2888     { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
 2889 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
 2890     sed 's/^/| /' "$ac_site_file" >&5
 2891     . "$ac_site_file" \
 2892       || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 2893 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 2894 as_fn_error $? "failed to load site script $ac_site_file
 2895 See \`config.log' for more details" "$LINENO" 5; }
 2896   fi
 2897 done
 2898 
 2899 if test -r "$cache_file"; then
 2900   # Some versions of bash will fail to source /dev/null (special files
 2901   # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
 2902   if test /dev/null != "$cache_file" && test -f "$cache_file"; then
 2903     { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
 2904 $as_echo "$as_me: loading cache $cache_file" >&6;}
 2905     case $cache_file in
 2906       [\\/]* | ?:[\\/]* ) . "$cache_file";;
 2907       *)                      . "./$cache_file";;
 2908     esac
 2909   fi
 2910 else
 2911   { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
 2912 $as_echo "$as_me: creating cache $cache_file" >&6;}
 2913   >$cache_file
 2914 fi
 2915 
 2916 # Check that the precious variables saved in the cache have kept the same
 2917 # value.
 2918 ac_cache_corrupted=false
 2919 for ac_var in $ac_precious_vars; do
 2920   eval ac_old_set=\$ac_cv_env_${ac_var}_set
 2921   eval ac_new_set=\$ac_env_${ac_var}_set
 2922   eval ac_old_val=\$ac_cv_env_${ac_var}_value
 2923   eval ac_new_val=\$ac_env_${ac_var}_value
 2924   case $ac_old_set,$ac_new_set in
 2925     set,)
 2926       { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 2927 $as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
 2928       ac_cache_corrupted=: ;;
 2929     ,set)
 2930       { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
 2931 $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 2932       ac_cache_corrupted=: ;;
 2933     ,);;
 2934     *)
 2935       if test "x$ac_old_val" != "x$ac_new_val"; then
 2936     # differences in whitespace do not lead to failure.
 2937     ac_old_val_w=`echo x $ac_old_val`
 2938     ac_new_val_w=`echo x $ac_new_val`
 2939     if test "$ac_old_val_w" != "$ac_new_val_w"; then
 2940       { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
 2941 $as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 2942       ac_cache_corrupted=:
 2943     else
 2944       { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
 2945 $as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 2946       eval $ac_var=\$ac_old_val
 2947     fi
 2948     { $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
 2949 $as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
 2950     { $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
 2951 $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
 2952       fi;;
 2953   esac
 2954   # Pass precious variables to config.status.
 2955   if test "$ac_new_set" = set; then
 2956     case $ac_new_val in
 2957     *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
 2958     *) ac_arg=$ac_var=$ac_new_val ;;
 2959     esac
 2960     case " $ac_configure_args " in
 2961       *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
 2962       *) as_fn_append ac_configure_args " '$ac_arg'" ;;
 2963     esac
 2964   fi
 2965 done
 2966 if $ac_cache_corrupted; then
 2967   { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 2968 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 2969   { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 2970 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
 2971   as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
 2972 fi
 2973 ## -------------------- ##
 2974 ## Main body of script. ##
 2975 ## -------------------- ##
 2976 
 2977 ac_ext=c
 2978 ac_cpp='$CPP $CPPFLAGS'
 2979 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 2980 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 2981 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 2982 
 2983 
 2984 
 2985 VERSION_DATE=2021
 2986 
 2987 
 2988 $as_echo "#define VERSION_DATE \"May 2021\"" >>confdefs.h
 2989 
 2990 
 2991 ac_builddir=.
 2992 
 2993 case "$ac_dir" in
 2994 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 2995 *)
 2996   ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
 2997   # A ".." for each directory in $ac_dir_suffix.
 2998   ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
 2999   case $ac_top_builddir_sub in
 3000   "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
 3001   *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
 3002   esac ;;
 3003 esac
 3004 ac_abs_top_builddir=$ac_pwd
 3005 ac_abs_builddir=$ac_pwd$ac_dir_suffix
 3006 # for backward compatibility:
 3007 ac_top_builddir=$ac_top_build_prefix
 3008 
 3009 case $srcdir in
 3010   .)  # We are building in place.
 3011     ac_srcdir=.
 3012     ac_top_srcdir=$ac_top_builddir_sub
 3013     ac_abs_top_srcdir=$ac_pwd ;;
 3014   [\\/]* | ?:[\\/]* )  # Absolute name.
 3015     ac_srcdir=$srcdir$ac_dir_suffix;
 3016     ac_top_srcdir=$srcdir
 3017     ac_abs_top_srcdir=$srcdir ;;
 3018   *) # Relative name.
 3019     ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
 3020     ac_top_srcdir=$ac_top_build_prefix$srcdir
 3021     ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
 3022 esac
 3023 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
 3024 
 3025 
 3026 
 3027 ac_aux_dir=
 3028 for ac_dir in build-aux "$srcdir"/build-aux; do
 3029   if test -f "$ac_dir/install-sh"; then
 3030     ac_aux_dir=$ac_dir
 3031     ac_install_sh="$ac_aux_dir/install-sh -c"
 3032     break
 3033   elif test -f "$ac_dir/install.sh"; then
 3034     ac_aux_dir=$ac_dir
 3035     ac_install_sh="$ac_aux_dir/install.sh -c"
 3036     break
 3037   elif test -f "$ac_dir/shtool"; then
 3038     ac_aux_dir=$ac_dir
 3039     ac_install_sh="$ac_aux_dir/shtool install -c"
 3040     break
 3041   fi
 3042 done
 3043 if test -z "$ac_aux_dir"; then
 3044   as_fn_error $? "cannot find install-sh, install.sh, or shtool in build-aux \"$srcdir\"/build-aux" "$LINENO" 5
 3045 fi
 3046 
 3047 # These three variables are undocumented and unsupported,
 3048 # and are intended to be withdrawn in a future Autoconf release.
 3049 # They can cause serious problems if a builder's source tree is in a directory
 3050 # whose full name contains unusual characters.
 3051 ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
 3052 ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
 3053 ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 3054 
 3055 
 3056 
 3057 
 3058 
 3059 ac_config_headers="$ac_config_headers _config.h"
 3060 
 3061 # Add pre'prefixed config
 3062 
 3063 ac_config_commands="$ac_config_commands singularconfig.h"
 3064 
 3065 
 3066 # Expand $ac_aux_dir to an absolute path.
 3067 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 3068 
 3069 ac_ext=c
 3070 ac_cpp='$CPP $CPPFLAGS'
 3071 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 3072 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 3073 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 3074 if test -n "$ac_tool_prefix"; then
 3075   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 3076 set dummy ${ac_tool_prefix}gcc; ac_word=$2
 3077 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3078 $as_echo_n "checking for $ac_word... " >&6; }
 3079 if ${ac_cv_prog_CC+:} false; then :
 3080   $as_echo_n "(cached) " >&6
 3081 else
 3082   if test -n "$CC"; then
 3083   ac_cv_prog_CC="$CC" # Let the user override the test.
 3084 else
 3085 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3086 for as_dir in $PATH
 3087 do
 3088   IFS=$as_save_IFS
 3089   test -z "$as_dir" && as_dir=.
 3090     for ac_exec_ext in '' $ac_executable_extensions; do
 3091   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3092     ac_cv_prog_CC="${ac_tool_prefix}gcc"
 3093     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3094     break 2
 3095   fi
 3096 done
 3097   done
 3098 IFS=$as_save_IFS
 3099 
 3100 fi
 3101 fi
 3102 CC=$ac_cv_prog_CC
 3103 if test -n "$CC"; then
 3104   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 3105 $as_echo "$CC" >&6; }
 3106 else
 3107   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3108 $as_echo "no" >&6; }
 3109 fi
 3110 
 3111 
 3112 fi
 3113 if test -z "$ac_cv_prog_CC"; then
 3114   ac_ct_CC=$CC
 3115   # Extract the first word of "gcc", so it can be a program name with args.
 3116 set dummy gcc; ac_word=$2
 3117 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3118 $as_echo_n "checking for $ac_word... " >&6; }
 3119 if ${ac_cv_prog_ac_ct_CC+:} false; then :
 3120   $as_echo_n "(cached) " >&6
 3121 else
 3122   if test -n "$ac_ct_CC"; then
 3123   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 3124 else
 3125 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3126 for as_dir in $PATH
 3127 do
 3128   IFS=$as_save_IFS
 3129   test -z "$as_dir" && as_dir=.
 3130     for ac_exec_ext in '' $ac_executable_extensions; do
 3131   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3132     ac_cv_prog_ac_ct_CC="gcc"
 3133     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3134     break 2
 3135   fi
 3136 done
 3137   done
 3138 IFS=$as_save_IFS
 3139 
 3140 fi
 3141 fi
 3142 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 3143 if test -n "$ac_ct_CC"; then
 3144   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 3145 $as_echo "$ac_ct_CC" >&6; }
 3146 else
 3147   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3148 $as_echo "no" >&6; }
 3149 fi
 3150 
 3151   if test "x$ac_ct_CC" = x; then
 3152     CC=""
 3153   else
 3154     case $cross_compiling:$ac_tool_warned in
 3155 yes:)
 3156 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 3157 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 3158 ac_tool_warned=yes ;;
 3159 esac
 3160     CC=$ac_ct_CC
 3161   fi
 3162 else
 3163   CC="$ac_cv_prog_CC"
 3164 fi
 3165 
 3166 if test -z "$CC"; then
 3167           if test -n "$ac_tool_prefix"; then
 3168     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 3169 set dummy ${ac_tool_prefix}cc; ac_word=$2
 3170 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3171 $as_echo_n "checking for $ac_word... " >&6; }
 3172 if ${ac_cv_prog_CC+:} false; then :
 3173   $as_echo_n "(cached) " >&6
 3174 else
 3175   if test -n "$CC"; then
 3176   ac_cv_prog_CC="$CC" # Let the user override the test.
 3177 else
 3178 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3179 for as_dir in $PATH
 3180 do
 3181   IFS=$as_save_IFS
 3182   test -z "$as_dir" && as_dir=.
 3183     for ac_exec_ext in '' $ac_executable_extensions; do
 3184   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3185     ac_cv_prog_CC="${ac_tool_prefix}cc"
 3186     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3187     break 2
 3188   fi
 3189 done
 3190   done
 3191 IFS=$as_save_IFS
 3192 
 3193 fi
 3194 fi
 3195 CC=$ac_cv_prog_CC
 3196 if test -n "$CC"; then
 3197   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 3198 $as_echo "$CC" >&6; }
 3199 else
 3200   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3201 $as_echo "no" >&6; }
 3202 fi
 3203 
 3204 
 3205   fi
 3206 fi
 3207 if test -z "$CC"; then
 3208   # Extract the first word of "cc", so it can be a program name with args.
 3209 set dummy cc; ac_word=$2
 3210 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3211 $as_echo_n "checking for $ac_word... " >&6; }
 3212 if ${ac_cv_prog_CC+:} false; then :
 3213   $as_echo_n "(cached) " >&6
 3214 else
 3215   if test -n "$CC"; then
 3216   ac_cv_prog_CC="$CC" # Let the user override the test.
 3217 else
 3218   ac_prog_rejected=no
 3219 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3220 for as_dir in $PATH
 3221 do
 3222   IFS=$as_save_IFS
 3223   test -z "$as_dir" && as_dir=.
 3224     for ac_exec_ext in '' $ac_executable_extensions; do
 3225   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3226     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
 3227        ac_prog_rejected=yes
 3228        continue
 3229      fi
 3230     ac_cv_prog_CC="cc"
 3231     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3232     break 2
 3233   fi
 3234 done
 3235   done
 3236 IFS=$as_save_IFS
 3237 
 3238 if test $ac_prog_rejected = yes; then
 3239   # We found a bogon in the path, so make sure we never use it.
 3240   set dummy $ac_cv_prog_CC
 3241   shift
 3242   if test $# != 0; then
 3243     # We chose a different compiler from the bogus one.
 3244     # However, it has the same basename, so the bogon will be chosen
 3245     # first if we set CC to just the basename; use the full file name.
 3246     shift
 3247     ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
 3248   fi
 3249 fi
 3250 fi
 3251 fi
 3252 CC=$ac_cv_prog_CC
 3253 if test -n "$CC"; then
 3254   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 3255 $as_echo "$CC" >&6; }
 3256 else
 3257   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3258 $as_echo "no" >&6; }
 3259 fi
 3260 
 3261 
 3262 fi
 3263 if test -z "$CC"; then
 3264   if test -n "$ac_tool_prefix"; then
 3265   for ac_prog in cl.exe
 3266   do
 3267     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 3268 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 3269 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3270 $as_echo_n "checking for $ac_word... " >&6; }
 3271 if ${ac_cv_prog_CC+:} false; then :
 3272   $as_echo_n "(cached) " >&6
 3273 else
 3274   if test -n "$CC"; then
 3275   ac_cv_prog_CC="$CC" # Let the user override the test.
 3276 else
 3277 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3278 for as_dir in $PATH
 3279 do
 3280   IFS=$as_save_IFS
 3281   test -z "$as_dir" && as_dir=.
 3282     for ac_exec_ext in '' $ac_executable_extensions; do
 3283   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3284     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
 3285     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3286     break 2
 3287   fi
 3288 done
 3289   done
 3290 IFS=$as_save_IFS
 3291 
 3292 fi
 3293 fi
 3294 CC=$ac_cv_prog_CC
 3295 if test -n "$CC"; then
 3296   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 3297 $as_echo "$CC" >&6; }
 3298 else
 3299   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3300 $as_echo "no" >&6; }
 3301 fi
 3302 
 3303 
 3304     test -n "$CC" && break
 3305   done
 3306 fi
 3307 if test -z "$CC"; then
 3308   ac_ct_CC=$CC
 3309   for ac_prog in cl.exe
 3310 do
 3311   # Extract the first word of "$ac_prog", so it can be a program name with args.
 3312 set dummy $ac_prog; ac_word=$2
 3313 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 3314 $as_echo_n "checking for $ac_word... " >&6; }
 3315 if ${ac_cv_prog_ac_ct_CC+:} false; then :
 3316   $as_echo_n "(cached) " >&6
 3317 else
 3318   if test -n "$ac_ct_CC"; then
 3319   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 3320 else
 3321 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 3322 for as_dir in $PATH
 3323 do
 3324   IFS=$as_save_IFS
 3325   test -z "$as_dir" && as_dir=.
 3326     for ac_exec_ext in '' $ac_executable_extensions; do
 3327   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 3328     ac_cv_prog_ac_ct_CC="$ac_prog"
 3329     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 3330     break 2
 3331   fi
 3332 done
 3333   done
 3334 IFS=$as_save_IFS
 3335 
 3336 fi
 3337 fi
 3338 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 3339 if test -n "$ac_ct_CC"; then
 3340   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 3341 $as_echo "$ac_ct_CC" >&6; }
 3342 else
 3343   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3344 $as_echo "no" >&6; }
 3345 fi
 3346 
 3347 
 3348   test -n "$ac_ct_CC" && break
 3349 done
 3350 
 3351   if test "x$ac_ct_CC" = x; then
 3352     CC=""
 3353   else
 3354     case $cross_compiling:$ac_tool_warned in
 3355 yes:)
 3356 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 3357 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 3358 ac_tool_warned=yes ;;
 3359 esac
 3360     CC=$ac_ct_CC
 3361   fi
 3362 fi
 3363 
 3364 fi
 3365 
 3366 
 3367 test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 3368 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 3369 as_fn_error $? "no acceptable C compiler found in \$PATH
 3370 See \`config.log' for more details" "$LINENO" 5; }
 3371 
 3372 # Provide some information about the compiler.
 3373 $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 3374 set X $ac_compile
 3375 ac_compiler=$2
 3376 for ac_option in --version -v -V -qversion; do
 3377   { { ac_try="$ac_compiler $ac_option >&5"
 3378 case "(($ac_try" in
 3379   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3380   *) ac_try_echo=$ac_try;;
 3381 esac
 3382 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3383 $as_echo "$ac_try_echo"; } >&5
 3384   (eval "$ac_compiler $ac_option >&5") 2>conftest.err
 3385   ac_status=$?
 3386   if test -s conftest.err; then
 3387     sed '10a\
 3388 ... rest of stderr output deleted ...
 3389          10q' conftest.err >conftest.er1
 3390     cat conftest.er1 >&5
 3391   fi
 3392   rm -f conftest.er1 conftest.err
 3393   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3394   test $ac_status = 0; }
 3395 done
 3396 
 3397 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3398 /* end confdefs.h.  */
 3399 
 3400 int
 3401 main ()
 3402 {
 3403 
 3404   ;
 3405   return 0;
 3406 }
 3407 _ACEOF
 3408 ac_clean_files_save=$ac_clean_files
 3409 ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 3410 # Try to create an executable without -o first, disregard a.out.
 3411 # It will help us diagnose broken compilers, and finding out an intuition
 3412 # of exeext.
 3413 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
 3414 $as_echo_n "checking whether the C compiler works... " >&6; }
 3415 ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 3416 
 3417 # The possible output files:
 3418 ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
 3419 
 3420 ac_rmfiles=
 3421 for ac_file in $ac_files
 3422 do
 3423   case $ac_file in
 3424     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
 3425     * ) ac_rmfiles="$ac_rmfiles $ac_file";;
 3426   esac
 3427 done
 3428 rm -f $ac_rmfiles
 3429 
 3430 if { { ac_try="$ac_link_default"
 3431 case "(($ac_try" in
 3432   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3433   *) ac_try_echo=$ac_try;;
 3434 esac
 3435 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3436 $as_echo "$ac_try_echo"; } >&5
 3437   (eval "$ac_link_default") 2>&5
 3438   ac_status=$?
 3439   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3440   test $ac_status = 0; }; then :
 3441   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 3442 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 3443 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 3444 # so that the user can short-circuit this test for compilers unknown to
 3445 # Autoconf.
 3446 for ac_file in $ac_files ''
 3447 do
 3448   test -f "$ac_file" || continue
 3449   case $ac_file in
 3450     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
 3451     ;;
 3452     [ab].out )
 3453     # We found the default executable, but exeext='' is most
 3454     # certainly right.
 3455     break;;
 3456     *.* )
 3457     if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
 3458     then :; else
 3459        ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 3460     fi
 3461     # We set ac_cv_exeext here because the later test for it is not
 3462     # safe: cross compilers may not add the suffix if given an `-o'
 3463     # argument, so we may need to know it at that point already.
 3464     # Even if this section looks crufty: it has the advantage of
 3465     # actually working.
 3466     break;;
 3467     * )
 3468     break;;
 3469   esac
 3470 done
 3471 test "$ac_cv_exeext" = no && ac_cv_exeext=
 3472 
 3473 else
 3474   ac_file=''
 3475 fi
 3476 if test -z "$ac_file"; then :
 3477   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 3478 $as_echo "no" >&6; }
 3479 $as_echo "$as_me: failed program was:" >&5
 3480 sed 's/^/| /' conftest.$ac_ext >&5
 3481 
 3482 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 3483 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 3484 as_fn_error 77 "C compiler cannot create executables
 3485 See \`config.log' for more details" "$LINENO" 5; }
 3486 else
 3487   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 3488 $as_echo "yes" >&6; }
 3489 fi
 3490 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 3491 $as_echo_n "checking for C compiler default output file name... " >&6; }
 3492 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
 3493 $as_echo "$ac_file" >&6; }
 3494 ac_exeext=$ac_cv_exeext
 3495 
 3496 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 3497 ac_clean_files=$ac_clean_files_save
 3498 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 3499 $as_echo_n "checking for suffix of executables... " >&6; }
 3500 if { { ac_try="$ac_link"
 3501 case "(($ac_try" in
 3502   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3503   *) ac_try_echo=$ac_try;;
 3504 esac
 3505 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3506 $as_echo "$ac_try_echo"; } >&5
 3507   (eval "$ac_link") 2>&5
 3508   ac_status=$?
 3509   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3510   test $ac_status = 0; }; then :
 3511   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 3512 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 3513 # work properly (i.e., refer to `conftest.exe'), while it won't with
 3514 # `rm'.
 3515 for ac_file in conftest.exe conftest conftest.*; do
 3516   test -f "$ac_file" || continue
 3517   case $ac_file in
 3518     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
 3519     *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 3520       break;;
 3521     * ) break;;
 3522   esac
 3523 done
 3524 else
 3525   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 3526 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 3527 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
 3528 See \`config.log' for more details" "$LINENO" 5; }
 3529 fi
 3530 rm -f conftest conftest$ac_cv_exeext
 3531 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
 3532 $as_echo "$ac_cv_exeext" >&6; }
 3533 
 3534 rm -f conftest.$ac_ext
 3535 EXEEXT=$ac_cv_exeext
 3536 ac_exeext=$EXEEXT
 3537 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3538 /* end confdefs.h.  */
 3539 #include <stdio.h>
 3540 int
 3541 main ()
 3542 {
 3543 FILE *f = fopen ("conftest.out", "w");
 3544  return ferror (f) || fclose (f) != 0;
 3545 
 3546   ;
 3547   return 0;
 3548 }
 3549 _ACEOF
 3550 ac_clean_files="$ac_clean_files conftest.out"
 3551 # Check that the compiler produces executables we can run.  If not, either
 3552 # the compiler is broken, or we cross compile.
 3553 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
 3554 $as_echo_n "checking whether we are cross compiling... " >&6; }
 3555 if test "$cross_compiling" != yes; then
 3556   { { ac_try="$ac_link"
 3557 case "(($ac_try" in
 3558   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3559   *) ac_try_echo=$ac_try;;
 3560 esac
 3561 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3562 $as_echo "$ac_try_echo"; } >&5
 3563   (eval "$ac_link") 2>&5
 3564   ac_status=$?
 3565   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3566   test $ac_status = 0; }
 3567   if { ac_try='./conftest$ac_cv_exeext'
 3568   { { case "(($ac_try" in
 3569   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3570   *) ac_try_echo=$ac_try;;
 3571 esac
 3572 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3573 $as_echo "$ac_try_echo"; } >&5
 3574   (eval "$ac_try") 2>&5
 3575   ac_status=$?
 3576   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3577   test $ac_status = 0; }; }; then
 3578     cross_compiling=no
 3579   else
 3580     if test "$cross_compiling" = maybe; then
 3581     cross_compiling=yes
 3582     else
 3583     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 3584 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 3585 as_fn_error $? "cannot run C compiled programs.
 3586 If you meant to cross compile, use \`--host'.
 3587 See \`config.log' for more details" "$LINENO" 5; }
 3588     fi
 3589   fi
 3590 fi
 3591 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
 3592 $as_echo "$cross_compiling" >&6; }
 3593 
 3594 rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
 3595 ac_clean_files=$ac_clean_files_save
 3596 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 3597 $as_echo_n "checking for suffix of object files... " >&6; }
 3598 if ${ac_cv_objext+:} false; then :
 3599   $as_echo_n "(cached) " >&6
 3600 else
 3601   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3602 /* end confdefs.h.  */
 3603 
 3604 int
 3605 main ()
 3606 {
 3607 
 3608   ;
 3609   return 0;
 3610 }
 3611 _ACEOF
 3612 rm -f conftest.o conftest.obj
 3613 if { { ac_try="$ac_compile"
 3614 case "(($ac_try" in
 3615   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
 3616   *) ac_try_echo=$ac_try;;
 3617 esac
 3618 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 3619 $as_echo "$ac_try_echo"; } >&5
 3620   (eval "$ac_compile") 2>&5
 3621   ac_status=$?
 3622   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 3623   test $ac_status = 0; }; then :
 3624   for ac_file in conftest.o conftest.obj conftest.*; do
 3625   test -f "$ac_file" || continue;
 3626   case $ac_file in
 3627     *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
 3628     *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
 3629        break;;
 3630   esac
 3631 done
 3632 else
 3633   $as_echo "$as_me: failed program was:" >&5
 3634 sed 's/^/| /' conftest.$ac_ext >&5
 3635 
 3636 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 3637 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 3638 as_fn_error $? "cannot compute suffix of object files: cannot compile
 3639 See \`config.log' for more details" "$LINENO" 5; }
 3640 fi
 3641 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 3642 fi
 3643 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 3644 $as_echo "$ac_cv_objext" >&6; }
 3645 OBJEXT=$ac_cv_objext
 3646 ac_objext=$OBJEXT
 3647 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 3648 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
 3649 if ${ac_cv_c_compiler_gnu+:} false; then :
 3650   $as_echo_n "(cached) " >&6
 3651 else
 3652   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3653 /* end confdefs.h.  */
 3654 
 3655 int
 3656 main ()
 3657 {
 3658 #ifndef __GNUC__
 3659        choke me
 3660 #endif
 3661 
 3662   ;
 3663   return 0;
 3664 }
 3665 _ACEOF
 3666 if ac_fn_c_try_compile "$LINENO"; then :
 3667   ac_compiler_gnu=yes
 3668 else
 3669   ac_compiler_gnu=no
 3670 fi
 3671 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 3672 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 3673 
 3674 fi
 3675 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 3676 $as_echo "$ac_cv_c_compiler_gnu" >&6; }
 3677 if test $ac_compiler_gnu = yes; then
 3678   GCC=yes
 3679 else
 3680   GCC=
 3681 fi
 3682 ac_test_CFLAGS=${CFLAGS+set}
 3683 ac_save_CFLAGS=$CFLAGS
 3684 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 3685 $as_echo_n "checking whether $CC accepts -g... " >&6; }
 3686 if ${ac_cv_prog_cc_g+:} false; then :
 3687   $as_echo_n "(cached) " >&6
 3688 else
 3689   ac_save_c_werror_flag=$ac_c_werror_flag
 3690    ac_c_werror_flag=yes
 3691    ac_cv_prog_cc_g=no
 3692    CFLAGS="-g"
 3693    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3694 /* end confdefs.h.  */
 3695 
 3696 int
 3697 main ()
 3698 {
 3699 
 3700   ;
 3701   return 0;
 3702 }
 3703 _ACEOF
 3704 if ac_fn_c_try_compile "$LINENO"; then :
 3705   ac_cv_prog_cc_g=yes
 3706 else
 3707   CFLAGS=""
 3708       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3709 /* end confdefs.h.  */
 3710 
 3711 int
 3712 main ()
 3713 {
 3714 
 3715   ;
 3716   return 0;
 3717 }
 3718 _ACEOF
 3719 if ac_fn_c_try_compile "$LINENO"; then :
 3720 
 3721 else
 3722   ac_c_werror_flag=$ac_save_c_werror_flag
 3723      CFLAGS="-g"
 3724      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3725 /* end confdefs.h.  */
 3726 
 3727 int
 3728 main ()
 3729 {
 3730 
 3731   ;
 3732   return 0;
 3733 }
 3734 _ACEOF
 3735 if ac_fn_c_try_compile "$LINENO"; then :
 3736   ac_cv_prog_cc_g=yes
 3737 fi
 3738 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 3739 fi
 3740 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 3741 fi
 3742 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 3743    ac_c_werror_flag=$ac_save_c_werror_flag
 3744 fi
 3745 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 3746 $as_echo "$ac_cv_prog_cc_g" >&6; }
 3747 if test "$ac_test_CFLAGS" = set; then
 3748   CFLAGS=$ac_save_CFLAGS
 3749 elif test $ac_cv_prog_cc_g = yes; then
 3750   if test "$GCC" = yes; then
 3751     CFLAGS="-g"
 3752   else
 3753     CFLAGS="-g"
 3754   fi
 3755 else
 3756   if test "$GCC" = yes; then
 3757     CFLAGS="-O2"
 3758   else
 3759     CFLAGS=
 3760   fi
 3761 fi
 3762 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 3763 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
 3764 if ${ac_cv_prog_cc_c89+:} false; then :
 3765   $as_echo_n "(cached) " >&6
 3766 else
 3767   ac_cv_prog_cc_c89=no
 3768 ac_save_CC=$CC
 3769 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3770 /* end confdefs.h.  */
 3771 #include <stdarg.h>
 3772 #include <stdio.h>
 3773 struct stat;
 3774 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 3775 struct buf { int x; };
 3776 FILE * (*rcsopen) (struct buf *, struct stat *, int);
 3777 static char *e (p, i)
 3778      char **p;
 3779      int i;
 3780 {
 3781   return p[i];
 3782 }
 3783 static char *f (char * (*g) (char **, int), char **p, ...)
 3784 {
 3785   char *s;
 3786   va_list v;
 3787   va_start (v,p);
 3788   s = g (p, va_arg (v,int));
 3789   va_end (v);
 3790   return s;
 3791 }
 3792 
 3793 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
 3794    function prototypes and stuff, but not '\xHH' hex character constants.
 3795    These don't provoke an error unfortunately, instead are silently treated
 3796    as 'x'.  The following induces an error, until -std is added to get
 3797    proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
 3798    array size at least.  It's necessary to write '\x00'==0 to get something
 3799    that's true only with -std.  */
 3800 int osf4_cc_array ['\x00' == 0 ? 1 : -1];
 3801 
 3802 /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
 3803    inside strings and character constants.  */
 3804 #define FOO(x) 'x'
 3805 int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
 3806 
 3807 int test (int i, double x);
 3808 struct s1 {int (*f) (int a);};
 3809 struct s2 {int (*f) (double a);};
 3810 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
 3811 int argc;
 3812 char **argv;
 3813 int
 3814 main ()
 3815 {
 3816 return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
 3817   ;
 3818   return 0;
 3819 }
 3820 _ACEOF
 3821 for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
 3822     -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 3823 do
 3824   CC="$ac_save_CC $ac_arg"
 3825   if ac_fn_c_try_compile "$LINENO"; then :
 3826   ac_cv_prog_cc_c89=$ac_arg
 3827 fi
 3828 rm -f core conftest.err conftest.$ac_objext
 3829   test "x$ac_cv_prog_cc_c89" != "xno" && break
 3830 done
 3831 rm -f conftest.$ac_ext
 3832 CC=$ac_save_CC
 3833 
 3834 fi
 3835 # AC_CACHE_VAL
 3836 case "x$ac_cv_prog_cc_c89" in
 3837   x)
 3838     { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 3839 $as_echo "none needed" >&6; } ;;
 3840   xno)
 3841     { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 3842 $as_echo "unsupported" >&6; } ;;
 3843   *)
 3844     CC="$CC $ac_cv_prog_cc_c89"
 3845     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 3846 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
 3847 esac
 3848 if test "x$ac_cv_prog_cc_c89" != xno; then :
 3849 
 3850 fi
 3851 
 3852 ac_ext=c
 3853 ac_cpp='$CPP $CPPFLAGS'
 3854 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 3855 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 3856 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 3857 
 3858 ac_ext=c
 3859 ac_cpp='$CPP $CPPFLAGS'
 3860 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 3861 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 3862 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 3863 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
 3864 $as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
 3865 if ${am_cv_prog_cc_c_o+:} false; then :
 3866   $as_echo_n "(cached) " >&6
 3867 else
 3868   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3869 /* end confdefs.h.  */
 3870 
 3871 int
 3872 main ()
 3873 {
 3874 
 3875   ;
 3876   return 0;
 3877 }
 3878 _ACEOF
 3879   # Make sure it works both with $CC and with simple cc.
 3880   # Following AC_PROG_CC_C_O, we do the test twice because some
 3881   # compilers refuse to overwrite an existing .o file with -o,
 3882   # though they will create one.
 3883   am_cv_prog_cc_c_o=yes
 3884   for am_i in 1 2; do
 3885     if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
 3886    ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
 3887    ac_status=$?
 3888    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 3889    (exit $ac_status); } \
 3890          && test -f conftest2.$ac_objext; then
 3891       : OK
 3892     else
 3893       am_cv_prog_cc_c_o=no
 3894       break
 3895     fi
 3896   done
 3897   rm -f core conftest*
 3898   unset am_i
 3899 fi
 3900 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
 3901 $as_echo "$am_cv_prog_cc_c_o" >&6; }
 3902 if test "$am_cv_prog_cc_c_o" != yes; then
 3903    # Losing compiler, so override with the script.
 3904    # FIXME: It is wrong to rewrite CC.
 3905    # But if we don't then we get into trouble of one sort or another.
 3906    # A longer-term fix would be to have automake use am__CC in this case,
 3907    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 3908    CC="$am_aux_dir/compile $CC"
 3909 fi
 3910 ac_ext=c
 3911 ac_cpp='$CPP $CPPFLAGS'
 3912 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 3913 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 3914 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 3915 
 3916 
 3917 
 3918 ac_ext=c
 3919 ac_cpp='$CPP $CPPFLAGS'
 3920 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 3921 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 3922 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 3923 { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
 3924 $as_echo_n "checking how to run the C preprocessor... " >&6; }
 3925 # On Suns, sometimes $CPP names a directory.
 3926 if test -n "$CPP" && test -d "$CPP"; then
 3927   CPP=
 3928 fi
 3929 if test -z "$CPP"; then
 3930   if ${ac_cv_prog_CPP+:} false; then :
 3931   $as_echo_n "(cached) " >&6
 3932 else
 3933       # Double quotes because CPP needs to be expanded
 3934     for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
 3935     do
 3936       ac_preproc_ok=false
 3937 for ac_c_preproc_warn_flag in '' yes
 3938 do
 3939   # Use a header file that comes with gcc, so configuring glibc
 3940   # with a fresh cross-compiler works.
 3941   # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
 3942   # <limits.h> exists even on freestanding compilers.
 3943   # On the NeXT, cc -E runs the code through the compiler's parser,
 3944   # not just through cpp. "Syntax error" is here to catch this case.
 3945   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3946 /* end confdefs.h.  */
 3947 #ifdef __STDC__
 3948 # include <limits.h>
 3949 #else
 3950 # include <assert.h>
 3951 #endif
 3952              Syntax error
 3953 _ACEOF
 3954 if ac_fn_c_try_cpp "$LINENO"; then :
 3955 
 3956 else
 3957   # Broken: fails on valid input.
 3958 continue
 3959 fi
 3960 rm -f conftest.err conftest.i conftest.$ac_ext
 3961 
 3962   # OK, works on sane cases.  Now check whether nonexistent headers
 3963   # can be detected and how.
 3964   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 3965 /* end confdefs.h.  */
 3966 #include <ac_nonexistent.h>
 3967 _ACEOF
 3968 if ac_fn_c_try_cpp "$LINENO"; then :
 3969   # Broken: success on invalid input.
 3970 continue
 3971 else
 3972   # Passes both tests.
 3973 ac_preproc_ok=:
 3974 break
 3975 fi
 3976 rm -f conftest.err conftest.i conftest.$ac_ext
 3977 
 3978 done
 3979 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 3980 rm -f conftest.i conftest.err conftest.$ac_ext
 3981 if $ac_preproc_ok; then :
 3982   break
 3983 fi
 3984 
 3985     done
 3986     ac_cv_prog_CPP=$CPP
 3987 
 3988 fi
 3989   CPP=$ac_cv_prog_CPP
 3990 else
 3991   ac_cv_prog_CPP=$CPP
 3992 fi
 3993 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
 3994 $as_echo "$CPP" >&6; }
 3995 ac_preproc_ok=false
 3996 for ac_c_preproc_warn_flag in '' yes
 3997 do
 3998   # Use a header file that comes with gcc, so configuring glibc
 3999   # with a fresh cross-compiler works.
 4000   # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
 4001   # <limits.h> exists even on freestanding compilers.
 4002   # On the NeXT, cc -E runs the code through the compiler's parser,
 4003   # not just through cpp. "Syntax error" is here to catch this case.
 4004   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4005 /* end confdefs.h.  */
 4006 #ifdef __STDC__
 4007 # include <limits.h>
 4008 #else
 4009 # include <assert.h>
 4010 #endif
 4011              Syntax error
 4012 _ACEOF
 4013 if ac_fn_c_try_cpp "$LINENO"; then :
 4014 
 4015 else
 4016   # Broken: fails on valid input.
 4017 continue
 4018 fi
 4019 rm -f conftest.err conftest.i conftest.$ac_ext
 4020 
 4021   # OK, works on sane cases.  Now check whether nonexistent headers
 4022   # can be detected and how.
 4023   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4024 /* end confdefs.h.  */
 4025 #include <ac_nonexistent.h>
 4026 _ACEOF
 4027 if ac_fn_c_try_cpp "$LINENO"; then :
 4028   # Broken: success on invalid input.
 4029 continue
 4030 else
 4031   # Passes both tests.
 4032 ac_preproc_ok=:
 4033 break
 4034 fi
 4035 rm -f conftest.err conftest.i conftest.$ac_ext
 4036 
 4037 done
 4038 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
 4039 rm -f conftest.i conftest.err conftest.$ac_ext
 4040 if $ac_preproc_ok; then :
 4041 
 4042 else
 4043   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 4044 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 4045 as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
 4046 See \`config.log' for more details" "$LINENO" 5; }
 4047 fi
 4048 
 4049 ac_ext=c
 4050 ac_cpp='$CPP $CPPFLAGS'
 4051 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 4052 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 4053 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 4054 
 4055 
 4056 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 4057 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
 4058 if ${ac_cv_path_GREP+:} false; then :
 4059   $as_echo_n "(cached) " >&6
 4060 else
 4061   if test -z "$GREP"; then
 4062   ac_path_GREP_found=false
 4063   # Loop through the user's path and test for each of PROGNAME-LIST
 4064   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4065 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 4066 do
 4067   IFS=$as_save_IFS
 4068   test -z "$as_dir" && as_dir=.
 4069     for ac_prog in grep ggrep; do
 4070     for ac_exec_ext in '' $ac_executable_extensions; do
 4071       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
 4072       as_fn_executable_p "$ac_path_GREP" || continue
 4073 # Check for GNU ac_path_GREP and select it if it is found.
 4074   # Check for GNU $ac_path_GREP
 4075 case `"$ac_path_GREP" --version 2>&1` in
 4076 *GNU*)
 4077   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
 4078 *)
 4079   ac_count=0
 4080   $as_echo_n 0123456789 >"conftest.in"
 4081   while :
 4082   do
 4083     cat "conftest.in" "conftest.in" >"conftest.tmp"
 4084     mv "conftest.tmp" "conftest.in"
 4085     cp "conftest.in" "conftest.nl"
 4086     $as_echo 'GREP' >> "conftest.nl"
 4087     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
 4088     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
 4089     as_fn_arith $ac_count + 1 && ac_count=$as_val
 4090     if test $ac_count -gt ${ac_path_GREP_max-0}; then
 4091       # Best one so far, save it but keep looking for a better one
 4092       ac_cv_path_GREP="$ac_path_GREP"
 4093       ac_path_GREP_max=$ac_count
 4094     fi
 4095     # 10*(2^10) chars as input seems more than enough
 4096     test $ac_count -gt 10 && break
 4097   done
 4098   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 4099 esac
 4100 
 4101       $ac_path_GREP_found && break 3
 4102     done
 4103   done
 4104   done
 4105 IFS=$as_save_IFS
 4106   if test -z "$ac_cv_path_GREP"; then
 4107     as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
 4108   fi
 4109 else
 4110   ac_cv_path_GREP=$GREP
 4111 fi
 4112 
 4113 fi
 4114 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
 4115 $as_echo "$ac_cv_path_GREP" >&6; }
 4116  GREP="$ac_cv_path_GREP"
 4117 
 4118 
 4119 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 4120 $as_echo_n "checking for egrep... " >&6; }
 4121 if ${ac_cv_path_EGREP+:} false; then :
 4122   $as_echo_n "(cached) " >&6
 4123 else
 4124   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
 4125    then ac_cv_path_EGREP="$GREP -E"
 4126    else
 4127      if test -z "$EGREP"; then
 4128   ac_path_EGREP_found=false
 4129   # Loop through the user's path and test for each of PROGNAME-LIST
 4130   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4131 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 4132 do
 4133   IFS=$as_save_IFS
 4134   test -z "$as_dir" && as_dir=.
 4135     for ac_prog in egrep; do
 4136     for ac_exec_ext in '' $ac_executable_extensions; do
 4137       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
 4138       as_fn_executable_p "$ac_path_EGREP" || continue
 4139 # Check for GNU ac_path_EGREP and select it if it is found.
 4140   # Check for GNU $ac_path_EGREP
 4141 case `"$ac_path_EGREP" --version 2>&1` in
 4142 *GNU*)
 4143   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
 4144 *)
 4145   ac_count=0
 4146   $as_echo_n 0123456789 >"conftest.in"
 4147   while :
 4148   do
 4149     cat "conftest.in" "conftest.in" >"conftest.tmp"
 4150     mv "conftest.tmp" "conftest.in"
 4151     cp "conftest.in" "conftest.nl"
 4152     $as_echo 'EGREP' >> "conftest.nl"
 4153     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
 4154     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
 4155     as_fn_arith $ac_count + 1 && ac_count=$as_val
 4156     if test $ac_count -gt ${ac_path_EGREP_max-0}; then
 4157       # Best one so far, save it but keep looking for a better one
 4158       ac_cv_path_EGREP="$ac_path_EGREP"
 4159       ac_path_EGREP_max=$ac_count
 4160     fi
 4161     # 10*(2^10) chars as input seems more than enough
 4162     test $ac_count -gt 10 && break
 4163   done
 4164   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 4165 esac
 4166 
 4167       $ac_path_EGREP_found && break 3
 4168     done
 4169   done
 4170   done
 4171 IFS=$as_save_IFS
 4172   if test -z "$ac_cv_path_EGREP"; then
 4173     as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
 4174   fi
 4175 else
 4176   ac_cv_path_EGREP=$EGREP
 4177 fi
 4178 
 4179    fi
 4180 fi
 4181 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 4182 $as_echo "$ac_cv_path_EGREP" >&6; }
 4183  EGREP="$ac_cv_path_EGREP"
 4184 
 4185 
 4186 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 4187 $as_echo_n "checking for ANSI C header files... " >&6; }
 4188 if ${ac_cv_header_stdc+:} false; then :
 4189   $as_echo_n "(cached) " >&6
 4190 else
 4191   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4192 /* end confdefs.h.  */
 4193 #include <stdlib.h>
 4194 #include <stdarg.h>
 4195 #include <string.h>
 4196 #include <float.h>
 4197 
 4198 int
 4199 main ()
 4200 {
 4201 
 4202   ;
 4203   return 0;
 4204 }
 4205 _ACEOF
 4206 if ac_fn_c_try_compile "$LINENO"; then :
 4207   ac_cv_header_stdc=yes
 4208 else
 4209   ac_cv_header_stdc=no
 4210 fi
 4211 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 4212 
 4213 if test $ac_cv_header_stdc = yes; then
 4214   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 4215   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4216 /* end confdefs.h.  */
 4217 #include <string.h>
 4218 
 4219 _ACEOF
 4220 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 4221   $EGREP "memchr" >/dev/null 2>&1; then :
 4222 
 4223 else
 4224   ac_cv_header_stdc=no
 4225 fi
 4226 rm -f conftest*
 4227 
 4228 fi
 4229 
 4230 if test $ac_cv_header_stdc = yes; then
 4231   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 4232   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4233 /* end confdefs.h.  */
 4234 #include <stdlib.h>
 4235 
 4236 _ACEOF
 4237 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 4238   $EGREP "free" >/dev/null 2>&1; then :
 4239 
 4240 else
 4241   ac_cv_header_stdc=no
 4242 fi
 4243 rm -f conftest*
 4244 
 4245 fi
 4246 
 4247 if test $ac_cv_header_stdc = yes; then
 4248   # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
 4249   if test "$cross_compiling" = yes; then :
 4250   :
 4251 else
 4252   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4253 /* end confdefs.h.  */
 4254 #include <ctype.h>
 4255 #include <stdlib.h>
 4256 #if ((' ' & 0x0FF) == 0x020)
 4257 # define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
 4258 # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
 4259 #else
 4260 # define ISLOWER(c) \
 4261            (('a' <= (c) && (c) <= 'i') \
 4262              || ('j' <= (c) && (c) <= 'r') \
 4263              || ('s' <= (c) && (c) <= 'z'))
 4264 # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
 4265 #endif
 4266 
 4267 #define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
 4268 int
 4269 main ()
 4270 {
 4271   int i;
 4272   for (i = 0; i < 256; i++)
 4273     if (XOR (islower (i), ISLOWER (i))
 4274     || toupper (i) != TOUPPER (i))
 4275       return 2;
 4276   return 0;
 4277 }
 4278 _ACEOF
 4279 if ac_fn_c_try_run "$LINENO"; then :
 4280 
 4281 else
 4282   ac_cv_header_stdc=no
 4283 fi
 4284 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 4285   conftest.$ac_objext conftest.beam conftest.$ac_ext
 4286 fi
 4287 
 4288 fi
 4289 fi
 4290 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
 4291 $as_echo "$ac_cv_header_stdc" >&6; }
 4292 if test $ac_cv_header_stdc = yes; then
 4293 
 4294 $as_echo "#define STDC_HEADERS 1" >>confdefs.h
 4295 
 4296 fi
 4297 
 4298 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
 4299 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
 4300           inttypes.h stdint.h unistd.h
 4301 do :
 4302   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 4303 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
 4304 "
 4305 if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
 4306   cat >>confdefs.h <<_ACEOF
 4307 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 4308 _ACEOF
 4309 
 4310 fi
 4311 
 4312 done
 4313 
 4314 
 4315 
 4316   ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
 4317 if test "x$ac_cv_header_minix_config_h" = xyes; then :
 4318   MINIX=yes
 4319 else
 4320   MINIX=
 4321 fi
 4322 
 4323 
 4324   if test "$MINIX" = yes; then
 4325 
 4326 $as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
 4327 
 4328 
 4329 $as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
 4330 
 4331 
 4332 $as_echo "#define _MINIX 1" >>confdefs.h
 4333 
 4334   fi
 4335 
 4336 
 4337   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
 4338 $as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
 4339 if ${ac_cv_safe_to_define___extensions__+:} false; then :
 4340   $as_echo_n "(cached) " >&6
 4341 else
 4342   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 4343 /* end confdefs.h.  */
 4344 
 4345 #         define __EXTENSIONS__ 1
 4346           $ac_includes_default
 4347 int
 4348 main ()
 4349 {
 4350 
 4351   ;
 4352   return 0;
 4353 }
 4354 _ACEOF
 4355 if ac_fn_c_try_compile "$LINENO"; then :
 4356   ac_cv_safe_to_define___extensions__=yes
 4357 else
 4358   ac_cv_safe_to_define___extensions__=no
 4359 fi
 4360 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 4361 fi
 4362 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
 4363 $as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
 4364   test $ac_cv_safe_to_define___extensions__ = yes &&
 4365     $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
 4366 
 4367   $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
 4368 
 4369   $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
 4370 
 4371   $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
 4372 
 4373   $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
 4374 
 4375 
 4376 
 4377 
 4378 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
 4379 $as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
 4380     # Check whether --enable-maintainer-mode was given.
 4381 if test "${enable_maintainer_mode+set}" = set; then :
 4382   enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
 4383 else
 4384   USE_MAINTAINER_MODE=yes
 4385 fi
 4386 
 4387   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
 4388 $as_echo "$USE_MAINTAINER_MODE" >&6; }
 4389    if test $USE_MAINTAINER_MODE = yes; then
 4390   MAINTAINER_MODE_TRUE=
 4391   MAINTAINER_MODE_FALSE='#'
 4392 else
 4393   MAINTAINER_MODE_TRUE='#'
 4394   MAINTAINER_MODE_FALSE=
 4395 fi
 4396 
 4397   MAINT=$MAINTAINER_MODE_TRUE
 4398 
 4399 
 4400 am__api_version='1.16'
 4401 
 4402 # Find a good install program.  We prefer a C program (faster),
 4403 # so one script is as good as another.  But avoid the broken or
 4404 # incompatible versions:
 4405 # SysV /etc/install, /usr/sbin/install
 4406 # SunOS /usr/etc/install
 4407 # IRIX /sbin/install
 4408 # AIX /bin/install
 4409 # AmigaOS /C/install, which installs bootblocks on floppy discs
 4410 # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
 4411 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 4412 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 4413 # OS/2's system install, which has a completely different semantic
 4414 # ./install, which can be erroneously created by make from ./install.sh.
 4415 # Reject install programs that cannot install multiple files.
 4416 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 4417 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 4418 if test -z "$INSTALL"; then
 4419 if ${ac_cv_path_install+:} false; then :
 4420   $as_echo_n "(cached) " >&6
 4421 else
 4422   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4423 for as_dir in $PATH
 4424 do
 4425   IFS=$as_save_IFS
 4426   test -z "$as_dir" && as_dir=.
 4427     # Account for people who put trailing slashes in PATH elements.
 4428 case $as_dir/ in #((
 4429   ./ | .// | /[cC]/* | \
 4430   /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
 4431   ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
 4432   /usr/ucb/* ) ;;
 4433   *)
 4434     # OSF1 and SCO ODT 3.0 have their own names for install.
 4435     # Don't use installbsd from OSF since it installs stuff as root
 4436     # by default.
 4437     for ac_prog in ginstall scoinst install; do
 4438       for ac_exec_ext in '' $ac_executable_extensions; do
 4439     if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
 4440       if test $ac_prog = install &&
 4441         grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 4442         # AIX install.  It has an incompatible calling convention.
 4443         :
 4444       elif test $ac_prog = install &&
 4445         grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 4446         # program-specific install script used by HP pwplus--don't use.
 4447         :
 4448       else
 4449         rm -rf conftest.one conftest.two conftest.dir
 4450         echo one > conftest.one
 4451         echo two > conftest.two
 4452         mkdir conftest.dir
 4453         if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
 4454           test -s conftest.one && test -s conftest.two &&
 4455           test -s conftest.dir/conftest.one &&
 4456           test -s conftest.dir/conftest.two
 4457         then
 4458           ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
 4459           break 3
 4460         fi
 4461       fi
 4462     fi
 4463       done
 4464     done
 4465     ;;
 4466 esac
 4467 
 4468   done
 4469 IFS=$as_save_IFS
 4470 
 4471 rm -rf conftest.one conftest.two conftest.dir
 4472 
 4473 fi
 4474   if test "${ac_cv_path_install+set}" = set; then
 4475     INSTALL=$ac_cv_path_install
 4476   else
 4477     # As a last resort, use the slow shell script.  Don't cache a
 4478     # value for INSTALL within a source directory, because that will
 4479     # break other packages using the cache if that directory is
 4480     # removed, or if the value is a relative name.
 4481     INSTALL=$ac_install_sh
 4482   fi
 4483 fi
 4484 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
 4485 $as_echo "$INSTALL" >&6; }
 4486 
 4487 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
 4488 # It thinks the first close brace ends the variable substitution.
 4489 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 4490 
 4491 test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 4492 
 4493 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 4494 
 4495 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
 4496 $as_echo_n "checking whether build environment is sane... " >&6; }
 4497 # Reject unsafe characters in $srcdir or the absolute working directory
 4498 # name.  Accept space and tab only in the latter.
 4499 am_lf='
 4500 '
 4501 case `pwd` in
 4502   *[\\\"\#\$\&\'\`$am_lf]*)
 4503     as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
 4504 esac
 4505 case $srcdir in
 4506   *[\\\"\#\$\&\'\`$am_lf\ \ ]*)
 4507     as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
 4508 esac
 4509 
 4510 # Do 'set' in a subshell so we don't clobber the current shell's
 4511 # arguments.  Must try -L first in case configure is actually a
 4512 # symlink; some systems play weird games with the mod time of symlinks
 4513 # (eg FreeBSD returns the mod time of the symlink's containing
 4514 # directory).
 4515 if (
 4516    am_has_slept=no
 4517    for am_try in 1 2; do
 4518      echo "timestamp, slept: $am_has_slept" > conftest.file
 4519      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 4520      if test "$*" = "X"; then
 4521     # -L didn't work.
 4522     set X `ls -t "$srcdir/configure" conftest.file`
 4523      fi
 4524      if test "$*" != "X $srcdir/configure conftest.file" \
 4525     && test "$*" != "X conftest.file $srcdir/configure"; then
 4526 
 4527     # If neither matched, then we have a broken ls.  This can happen
 4528     # if, for instance, CONFIG_SHELL is bash and it inherits a
 4529     # broken ls alias from the environment.  This has actually
 4530     # happened.  Such a system could not be considered "sane".
 4531     as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
 4532   alias in your environment" "$LINENO" 5
 4533      fi
 4534      if test "$2" = conftest.file || test $am_try -eq 2; then
 4535        break
 4536      fi
 4537      # Just in case.
 4538      sleep 1
 4539      am_has_slept=yes
 4540    done
 4541    test "$2" = conftest.file
 4542    )
 4543 then
 4544    # Ok.
 4545    :
 4546 else
 4547    as_fn_error $? "newly created file is older than distributed files!
 4548 Check your system clock" "$LINENO" 5
 4549 fi
 4550 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 4551 $as_echo "yes" >&6; }
 4552 # If we didn't sleep, we still need to ensure time stamps of config.status and
 4553 # generated files are strictly newer.
 4554 am_sleep_pid=
 4555 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 4556   ( sleep 1 ) &
 4557   am_sleep_pid=$!
 4558 fi
 4559 
 4560 rm -f conftest.file
 4561 
 4562 test "$program_prefix" != NONE &&
 4563   program_transform_name="s&^&$program_prefix&;$program_transform_name"
 4564 # Use a double $ so make ignores it.
 4565 test "$program_suffix" != NONE &&
 4566   program_transform_name="s&\$&$program_suffix&;$program_transform_name"
 4567 # Double any \ or $.
 4568 # By default was `s,x,x', remove it if useless.
 4569 ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
 4570 program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 4571 
 4572 if test x"${MISSING+set}" != xset; then
 4573   MISSING="\${SHELL} '$am_aux_dir/missing'"
 4574 fi
 4575 # Use eval to expand $SHELL
 4576 if eval "$MISSING --is-lightweight"; then
 4577   am_missing_run="$MISSING "
 4578 else
 4579   am_missing_run=
 4580   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
 4581 $as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
 4582 fi
 4583 
 4584 if test x"${install_sh+set}" != xset; then
 4585   case $am_aux_dir in
 4586   *\ * | *\ *)
 4587     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 4588   *)
 4589     install_sh="\${SHELL} $am_aux_dir/install-sh"
 4590   esac
 4591 fi
 4592 
 4593 # Installed binaries are usually stripped using 'strip' when the user
 4594 # run "make install-strip".  However 'strip' might not be the right
 4595 # tool to use in cross-compilation environments, therefore Automake
 4596 # will honor the 'STRIP' environment variable to overrule this program.
 4597 if test "$cross_compiling" != no; then
 4598   if test -n "$ac_tool_prefix"; then
 4599   # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
 4600 set dummy ${ac_tool_prefix}strip; ac_word=$2
 4601 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 4602 $as_echo_n "checking for $ac_word... " >&6; }
 4603 if ${ac_cv_prog_STRIP+:} false; then :
 4604   $as_echo_n "(cached) " >&6
 4605 else
 4606   if test -n "$STRIP"; then
 4607   ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
 4608 else
 4609 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4610 for as_dir in $PATH
 4611 do
 4612   IFS=$as_save_IFS
 4613   test -z "$as_dir" && as_dir=.
 4614     for ac_exec_ext in '' $ac_executable_extensions; do
 4615   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 4616     ac_cv_prog_STRIP="${ac_tool_prefix}strip"
 4617     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 4618     break 2
 4619   fi
 4620 done
 4621   done
 4622 IFS=$as_save_IFS
 4623 
 4624 fi
 4625 fi
 4626 STRIP=$ac_cv_prog_STRIP
 4627 if test -n "$STRIP"; then
 4628   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
 4629 $as_echo "$STRIP" >&6; }
 4630 else
 4631   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 4632 $as_echo "no" >&6; }
 4633 fi
 4634 
 4635 
 4636 fi
 4637 if test -z "$ac_cv_prog_STRIP"; then
 4638   ac_ct_STRIP=$STRIP
 4639   # Extract the first word of "strip", so it can be a program name with args.
 4640 set dummy strip; ac_word=$2
 4641 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 4642 $as_echo_n "checking for $ac_word... " >&6; }
 4643 if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
 4644   $as_echo_n "(cached) " >&6
 4645 else
 4646   if test -n "$ac_ct_STRIP"; then
 4647   ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
 4648 else
 4649 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4650 for as_dir in $PATH
 4651 do
 4652   IFS=$as_save_IFS
 4653   test -z "$as_dir" && as_dir=.
 4654     for ac_exec_ext in '' $ac_executable_extensions; do
 4655   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 4656     ac_cv_prog_ac_ct_STRIP="strip"
 4657     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 4658     break 2
 4659   fi
 4660 done
 4661   done
 4662 IFS=$as_save_IFS
 4663 
 4664 fi
 4665 fi
 4666 ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
 4667 if test -n "$ac_ct_STRIP"; then
 4668   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
 4669 $as_echo "$ac_ct_STRIP" >&6; }
 4670 else
 4671   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 4672 $as_echo "no" >&6; }
 4673 fi
 4674 
 4675   if test "x$ac_ct_STRIP" = x; then
 4676     STRIP=":"
 4677   else
 4678     case $cross_compiling:$ac_tool_warned in
 4679 yes:)
 4680 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
 4681 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 4682 ac_tool_warned=yes ;;
 4683 esac
 4684     STRIP=$ac_ct_STRIP
 4685   fi
 4686 else
 4687   STRIP="$ac_cv_prog_STRIP"
 4688 fi
 4689 
 4690 fi
 4691 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 4692 
 4693 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
 4694 $as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
 4695 if test -z "$MKDIR_P"; then
 4696   if ${ac_cv_path_mkdir+:} false; then :
 4697   $as_echo_n "(cached) " >&6
 4698 else
 4699   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4700 for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
 4701 do
 4702   IFS=$as_save_IFS
 4703   test -z "$as_dir" && as_dir=.
 4704     for ac_prog in mkdir gmkdir; do
 4705      for ac_exec_ext in '' $ac_executable_extensions; do
 4706        as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
 4707        case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
 4708          'mkdir (GNU coreutils) '* | \
 4709          'mkdir (coreutils) '* | \
 4710          'mkdir (fileutils) '4.1*)
 4711            ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
 4712            break 3;;
 4713        esac
 4714      done
 4715        done
 4716   done
 4717 IFS=$as_save_IFS
 4718 
 4719 fi
 4720 
 4721   test -d ./--version && rmdir ./--version
 4722   if test "${ac_cv_path_mkdir+set}" = set; then
 4723     MKDIR_P="$ac_cv_path_mkdir -p"
 4724   else
 4725     # As a last resort, use the slow shell script.  Don't cache a
 4726     # value for MKDIR_P within a source directory, because that will
 4727     # break other packages using the cache if that directory is
 4728     # removed, or if the value is a relative name.
 4729     MKDIR_P="$ac_install_sh -d"
 4730   fi
 4731 fi
 4732 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
 4733 $as_echo "$MKDIR_P" >&6; }
 4734 
 4735 for ac_prog in gawk mawk nawk awk
 4736 do
 4737   # Extract the first word of "$ac_prog", so it can be a program name with args.
 4738 set dummy $ac_prog; ac_word=$2
 4739 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 4740 $as_echo_n "checking for $ac_word... " >&6; }
 4741 if ${ac_cv_prog_AWK+:} false; then :
 4742   $as_echo_n "(cached) " >&6
 4743 else
 4744   if test -n "$AWK"; then
 4745   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 4746 else
 4747 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 4748 for as_dir in $PATH
 4749 do
 4750   IFS=$as_save_IFS
 4751   test -z "$as_dir" && as_dir=.
 4752     for ac_exec_ext in '' $ac_executable_extensions; do
 4753   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
 4754     ac_cv_prog_AWK="$ac_prog"
 4755     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
 4756     break 2
 4757   fi
 4758 done
 4759   done
 4760 IFS=$as_save_IFS
 4761 
 4762 fi
 4763 fi
 4764 AWK=$ac_cv_prog_AWK
 4765 if test -n "$AWK"; then
 4766   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
 4767 $as_echo "$AWK" >&6; }
 4768 else
 4769   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 4770 $as_echo "no" >&6; }
 4771 fi
 4772 
 4773 
 4774   test -n "$AWK" && break
 4775 done
 4776 
 4777 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
 4778 $as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 4779 set x ${MAKE-make}
 4780 ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
 4781 if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
 4782   $as_echo_n "(cached) " >&6
 4783 else
 4784   cat >conftest.make <<\_ACEOF
 4785 SHELL = /bin/sh
 4786 all:
 4787     @echo '@@@%%%=$(MAKE)=@@@%%%'
 4788 _ACEOF
 4789 # GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
 4790 case `${MAKE-make} -f conftest.make 2>/dev/null` in
 4791   *@@@%%%=?*=@@@%%%*)
 4792     eval ac_cv_prog_make_${ac_make}_set=yes;;
 4793   *)
 4794     eval ac_cv_prog_make_${ac_make}_set=no;;
 4795 esac
 4796 rm -f conftest.make
 4797 fi
 4798 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
 4799   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 4800 $as_echo "yes" >&6; }
 4801   SET_MAKE=
 4802 else
 4803   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 4804 $as_echo "no" >&6; }
 4805   SET_MAKE="MAKE=${MAKE-make}"
 4806 fi
 4807 
 4808 rm -rf .tst 2>/dev/null
 4809 mkdir .tst 2>/dev/null
 4810 if test -d .tst; then
 4811   am__leading_dot=.
 4812 else
 4813   am__leading_dot=_
 4814 fi
 4815 rmdir .tst 2>/dev/null
 4816 
 4817 DEPDIR="${am__leading_dot}deps"
 4818 
 4819 ac_config_commands="$ac_config_commands depfiles"
 4820 
 4821 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
 4822 $as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
 4823 cat > confinc.mk << 'END'
 4824 am__doit:
 4825     @echo this is the am__doit target >confinc.out
 4826 .PHONY: am__doit
 4827 END
 4828 am__include="#"
 4829 am__quote=
 4830 # BSD make does it like this.
 4831 echo '.include "confinc.mk" # ignored' > confmf.BSD
 4832 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 4833 echo 'include confinc.mk # ignored' > confmf.GNU
 4834 _am_result=no
 4835 for s in GNU BSD; do
 4836   { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
 4837    (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
 4838    ac_status=$?
 4839    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 4840    (exit $ac_status); }
 4841   case $?:`cat confinc.out 2>/dev/null` in #(
 4842   '0:this is the am__doit target') :
 4843     case $s in #(
 4844   BSD) :
 4845     am__include='.include' am__quote='"' ;; #(
 4846   *) :
 4847     am__include='include' am__quote='' ;;
 4848 esac ;; #(
 4849   *) :
 4850      ;;
 4851 esac
 4852   if test "$am__include" != "#"; then
 4853     _am_result="yes ($s style)"
 4854     break
 4855   fi
 4856 done
 4857 rm -f confinc.* confmf.*
 4858 { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
 4859 $as_echo "${_am_result}" >&6; }
 4860 
 4861 # Check whether --enable-dependency-tracking was given.
 4862 if test "${enable_dependency_tracking+set}" = set; then :
 4863   enableval=$enable_dependency_tracking;
 4864 fi
 4865 
 4866 if test "x$enable_dependency_tracking" != xno; then
 4867   am_depcomp="$ac_aux_dir/depcomp"
 4868   AMDEPBACKSLASH='\'
 4869   am__nodep='_no'
 4870 fi
 4871  if test "x$enable_dependency_tracking" != xno; then
 4872   AMDEP_TRUE=
 4873   AMDEP_FALSE='#'
 4874 else
 4875   AMDEP_TRUE='#'
 4876   AMDEP_FALSE=
 4877 fi
 4878 
 4879 
 4880 # Check whether --enable-silent-rules was given.
 4881 if test "${enable_silent_rules+set}" = set; then :
 4882   enableval=$enable_silent_rules;
 4883 fi
 4884 
 4885 case $enable_silent_rules in # (((
 4886   yes) AM_DEFAULT_VERBOSITY=0;;
 4887    no) AM_DEFAULT_VERBOSITY=1;;
 4888     *) AM_DEFAULT_VERBOSITY=1;;
 4889 esac
 4890 am_make=${MAKE-make}
 4891 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
 4892 $as_echo_n "checking whether $am_make supports nested variables... " >&6; }
 4893 if ${am_cv_make_support_nested_variables+:} false; then :
 4894   $as_echo_n "(cached) " >&6
 4895 else
 4896   if $as_echo 'TRUE=$(BAR$(V))
 4897 BAR0=false
 4898 BAR1=true
 4899 V=1
 4900 am__doit:
 4901     @$(TRUE)
 4902 .PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
 4903   am_cv_make_support_nested_variables=yes
 4904 else
 4905   am_cv_make_support_nested_variables=no
 4906 fi
 4907 fi
 4908 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
 4909 $as_echo "$am_cv_make_support_nested_variables" >&6; }
 4910 if test $am_cv_make_support_nested_variables = yes; then
 4911     AM_V='$(V)'
 4912   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 4913 else
 4914   AM_V=$AM_DEFAULT_VERBOSITY
 4915   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 4916 fi
 4917 AM_BACKSLASH='\'
 4918 
 4919 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 4920   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 4921   # is not polluted with repeated "-I."
 4922   am__isrc=' -I$(srcdir)'
 4923   # test to see if srcdir already configured
 4924   if test -f $srcdir/config.status; then
 4925     as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
 4926   fi
 4927 fi
 4928 
 4929 # test whether we have cygpath
 4930 if test -z "$CYGPATH_W"; then
 4931   if (cygpath --version) >/dev/null 2>/dev/null; then
 4932     CYGPATH_W='cygpath -w'
 4933   else
 4934     CYGPATH_W=echo
 4935   fi
 4936 fi
 4937 
 4938 
 4939 # Define the identity of the package.
 4940  PACKAGE='singular'
 4941  VERSION='4.2.1'
 4942 
 4943 
 4944 cat >>confdefs.h <<_ACEOF
 4945 #define PACKAGE "$PACKAGE"
 4946 _ACEOF
 4947 
 4948 
 4949 cat >>confdefs.h <<_ACEOF
 4950 #define VERSION "$VERSION"
 4951 _ACEOF
 4952 
 4953 # Some tools Automake needs.
 4954 
 4955 ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
 4956 
 4957 
 4958 AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
 4959 
 4960 
 4961 AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
 4962 
 4963 
 4964 AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
 4965 
 4966 
 4967 MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 4968 
 4969 # For better backward compatibility.  To be removed once Automake 1.9.x
 4970 # dies out for good.  For more background, see:
 4971 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 4972 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 4973 mkdir_p='$(MKDIR_P)'
 4974 
 4975 # We need awk for the "check" target (and possibly the TAP driver).  The
 4976 # system "awk" is bad on some platforms.
 4977 # Always define AMTAR for backward compatibility.  Yes, it's still used
 4978 # in the wild :-(  We should find a proper way to deprecate it ...
 4979 AMTAR='$${TAR-tar}'
 4980 
 4981 
 4982 # We'll loop over all known methods to create a tar archive until one works.
 4983 _am_tools='gnutar plaintar pax cpio none'
 4984 
 4985 # The POSIX 1988 'ustar' format is defined with fixed-size fields.
 4986       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 4987       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 4988       # and bug#13588).
 4989       am_max_uid=2097151 # 2^21 - 1
 4990       am_max_gid=$am_max_uid
 4991       # The $UID and $GID variables are not portable, so we need to resort
 4992       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 4993       # below are definitely unexpected, so allow the users to see them
 4994       # (that is, avoid stderr redirection).
 4995       am_uid=`id -u || echo unknown`
 4996       am_gid=`id -g || echo unknown`
 4997       { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether UID '$am_uid' is supported by ustar format" >&5
 4998 $as_echo_n "checking whether UID '$am_uid' is supported by ustar format... " >&6; }
 4999       if test $am_uid -le $am_max_uid; then
 5000          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 5001 $as_echo "yes" >&6; }
 5002       else
 5003          { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 5004 $as_echo "no" >&6; }
 5005          _am_tools=none
 5006       fi
 5007       { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GID '$am_gid' is supported by ustar format" >&5
 5008 $as_echo_n "checking whether GID '$am_gid' is supported by ustar format... " >&6; }
 5009       if test $am_gid -le $am_max_gid; then
 5010          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 5011 $as_echo "yes" >&6; }
 5012       else
 5013         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 5014 $as_echo "no" >&6; }
 5015         _am_tools=none
 5016       fi
 5017 
 5018   { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to create a ustar tar archive" >&5
 5019 $as_echo_n "checking how to create a ustar tar archive... " >&6; }
 5020 
 5021   # Go ahead even if we have the value already cached.  We do so because we
 5022   # need to set the values for the 'am__tar' and 'am__untar' variables.
 5023   _am_tools=${am_cv_prog_tar_ustar-$_am_tools}
 5024 
 5025   for _am_tool in $_am_tools; do
 5026     case $_am_tool in
 5027     gnutar)
 5028       for _am_tar in tar gnutar gtar; do
 5029         { echo "$as_me:$LINENO: $_am_tar --version" >&5
 5030    ($_am_tar --version) >&5 2>&5
 5031    ac_status=$?
 5032    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 5033    (exit $ac_status); } && break
 5034       done
 5035       am__tar="$_am_tar --format=ustar -chf - "'"$$tardir"'
 5036       am__tar_="$_am_tar --format=ustar -chf - "'"$tardir"'
 5037       am__untar="$_am_tar -xf -"
 5038       ;;
 5039     plaintar)
 5040       # Must skip GNU tar: if it does not support --format= it doesn't create
 5041       # ustar tarball either.
 5042       (tar --version) >/dev/null 2>&1 && continue
 5043       am__tar='tar chf - "$$tardir"'
 5044       am__tar_='tar chf - "$tardir"'
 5045       am__untar='tar xf -'
 5046       ;;
 5047     pax)
 5048       am__tar='pax -L -x ustar -w "$$tardir"'
 5049       am__tar_='pax -L -x ustar -w "$tardir"'
 5050       am__untar='pax -r'
 5051       ;;
 5052     cpio)
 5053       am__tar='find "$$tardir" -print | cpio -o -H ustar -L'
 5054       am__tar_='find "$tardir" -print | cpio -o -H ustar -L'
 5055       am__untar='cpio -i -H ustar -d'
 5056       ;;
 5057     none)
 5058       am__tar=false
 5059       am__tar_=false
 5060       am__untar=false
 5061       ;;
 5062     esac
 5063 
 5064     # If the value was cached, stop now.  We just wanted to have am__tar
 5065     # and am__untar set.
 5066     test -n "${am_cv_prog_tar_ustar}" && break
 5067 
 5068     # tar/untar a dummy directory, and stop if the command works.
 5069     rm -rf conftest.dir
 5070     mkdir conftest.dir
 5071     echo GrepMe > conftest.dir/file
 5072     { echo "$as_me:$LINENO: tardir=conftest.dir && eval $am__tar_ >conftest.tar" >&5
 5073    (tardir=conftest.dir && eval $am__tar_ >conftest.tar) >&5 2>&5
 5074    ac_status=$?
 5075    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 5076    (exit $ac_status); }
 5077     rm -rf conftest.dir
 5078     if test -s conftest.tar; then
 5079       { echo "$as_me:$LINENO: $am__untar <conftest.tar" >&5
 5080    ($am__untar <conftest.tar) >&5 2>&5
 5081    ac_status=$?
 5082    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 5083    (exit $ac_status); }
 5084       { echo "$as_me:$LINENO: cat conftest.dir/file" >&5
 5085    (cat conftest.dir/file) >&5 2>&5
 5086    ac_status=$?
 5087    echo "$as_me:$LINENO: \$? = $ac_status" >&5
 5088    (exit $ac_status); }
 5089       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 5090     fi
 5091   done
 5092   rm -rf conftest.dir
 5093 
 5094   if ${am_cv_prog_tar_ustar+:} false; then :
 5095   $as_echo_n "(cached) " >&6
 5096 else
 5097   am_cv_prog_tar_ustar=$_am_tool
 5098 fi
 5099 
 5100   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_tar_ustar" >&5
 5101 $as_echo "$am_cv_prog_tar_ustar" >&6; }
 5102 
 5103 
 5104 
 5105 
 5106 
 5107 depcc="$CC"   am_compiler_list=
 5108 
 5109 { $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
 5110 $as_echo_n "checking dependency style of $depcc... " >&6; }
 5111 if ${am_cv_CC_dependencies_compiler_type+:} false; then :
 5112   $as_echo_n "(cached) " >&6
 5113 else
 5114   if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 5115   # We make a subdir and do the tests there.  Otherwise we can end up
 5116   # making bogus files that we don't know about and never remove.  For
 5117   # instance it was reported that on HP-UX the gcc test will end up
 5118   # making a dummy file named 'D' -- because '-MD' means "put the output
 5119   # in D".
 5120   rm -rf conftest.dir
 5121   mkdir conftest.dir
 5122   # Copy depcomp to subdir because otherwise we won't find it if we're
 5123   # using a relative directory.
 5124   cp "$am_depcomp" conftest.dir
 5125   cd conftest.dir
 5126   # We will build objects and dependencies in a subdirectory because
 5127   # it helps to detect inapplicable dependency modes.  For instance
 5128   # both Tru64's cc and ICC support -MD to output dependencies as a
 5129   # side effect of compilation, but ICC will put the dependencies in
 5130   # the current directory while Tru64 will put them in the object
 5131   # directory.
 5132   mkdir sub
 5133 
 5134   am_cv_CC_dependencies_compiler_type=none
 5135   if test "$am_compiler_list" = ""; then
 5136      am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
 5137   fi
 5138   am__universal=false
 5139   case " $depcc " in #(
 5140      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 5141      esac
 5142 
 5143   for depmode in $am_compiler_list; do
 5144     # Setup a source with many dependencies, because some compilers
 5145     # like to wrap large dependency lists on column 80 (with \), and
 5146     # we should not choose a depcomp mode which is confused by this.
 5147     #
 5148     # We need to recreate these files for each test, as the compiler may
 5149     # overwrite some of them when testing with obscure command lines.
 5150     # This happens at least with the AIX C compiler.
 5151     : > sub/conftest.c
 5152     for i in 1 2 3 4 5 6; do
 5153       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 5154       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 5155       # Solaris 10 /bin/sh.
 5156       echo '/* dummy */' > sub/conftst$i.h
 5157     done
 5158     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 5159 
 5160     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 5161     # mode.  It turns out that the SunPro C++ compiler does not properly
 5162     # handle '-M -o', and we need to detect this.  Also, some Intel
 5163     # versions had trouble with output in subdirs.
 5164     am__obj=sub/conftest.${OBJEXT-o}
 5165     am__minus_obj="-o $am__obj"
 5166     case $depmode in
 5167     gcc)
 5168       # This depmode causes a compiler race in universal mode.
 5169       test "$am__universal" = false || continue
 5170       ;;
 5171     nosideeffect)
 5172       # After this tag, mechanisms are not by side-effect, so they'll
 5173       # only be used when explicitly requested.
 5174       if test "x$enable_dependency_tracking" = xyes; then
 5175     continue
 5176       else
 5177     break
 5178       fi
 5179       ;;
 5180     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 5181       # This compiler won't grok '-c -o', but also, the minuso test has
 5182       # not run yet.  These depmodes are late enough in the game, and
 5183       # so weak that their functioning should not be impacted.
 5184       am__obj=conftest.${OBJEXT-o}
 5185       am__minus_obj=
 5186       ;;
 5187     none) break ;;
 5188     esac
 5189     if depmode=$depmode \
 5190        source=sub/conftest.c object=$am__obj \
 5191        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 5192        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 5193          >/dev/null 2>conftest.err &&
 5194        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 5195        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 5196        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 5197        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 5198       # icc doesn't choke on unknown options, it will just issue warnings
 5199       # or remarks (even with -Werror).  So we grep stderr for any message
 5200       # that says an option was ignored or not supported.
 5201       # When given -MP, icc 7.0 and 7.1 complain thusly:
 5202       #   icc: Command line warning: ignoring option '-M'; no argument required
 5203       # The diagnosis changed in icc 8.0:
 5204       #   icc: Command line remark: option '-MP' not supported
 5205       if (grep 'ignoring option' conftest.err ||
 5206           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 5207         am_cv_CC_dependencies_compiler_type=$depmode
 5208         break
 5209       fi
 5210     fi
 5211   done
 5212 
 5213   cd ..
 5214   rm -rf conftest.dir
 5215 else
 5216   am_cv_CC_dependencies_compiler_type=none
 5217 fi
 5218 
 5219 fi
 5220 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
 5221 $as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
 5222 CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
 5223 
 5224  if
 5225   test "x$enable_dependency_tracking" != xno \
 5226   && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
 5227   am__fastdepCC_TRUE=
 5228   am__fastdepCC_FALSE='#'
 5229 else
 5230   am__fastdepCC_TRUE='#'
 5231   am__fastdepCC_FALSE=
 5232 fi
 5233 
 5234 
 5235 
 5236 # POSIX will say in a future version that running "rm -f" with no argument
 5237 # is OK; and we want to be able to make that assumption in our Makefile
 5238 # recipes.  So use an aggressive probe to check that the usage we want is
 5239 # actually supported "in the wild" to an acceptable degree.
 5240 # See automake bug#10828.
 5241 # To make any issue more visible, cause the running configure to be aborted
 5242 # by default if the 'rm' program in use doesn't match our expectations; the
 5243 # user can still override this though.
 5244 if rm -f && rm -fr && rm -rf; then : OK; else
 5245   cat >&2 <<'END'
 5246 Oops!
 5247 
 5248 Your 'rm' program seems unable to run without file operands specified
 5249 on the command line, even when the '-f' option is present.  This is contrary
 5250 to the behaviour of most rm programs out there, and not conforming with
 5251 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 5252 
 5253 Please tell bug-automake@gnu.org about your system, including the value
 5254 of your $PATH and any error possibly output before this message.  This
 5255 can help us improve future automake versions.
 5256 
 5257 END
 5258   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 5259     echo 'Configuration will proceed anyway, since you have set the' >&2
 5260     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 5261     echo >&2
 5262   else
 5263     cat >&2 <<'END'
 5264 Aborting the configuration process, to ensure you take notice of the issue.
 5265 
 5266 You can download and install GNU coreutils to get an 'rm' implementation
 5267 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 5268 
 5269 If you want to complete the configuration process using your problematic
 5270 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 5271 to "yes", and re-run configure.
 5272 
 5273 END
 5274     as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
 5275   fi
 5276 fi
 5277  # -Wno-extra-portability -Werror silent-rules
 5278 
 5279 # Check whether --enable-silent-rules was given.
 5280 if test "${enable_silent_rules+set}" = set; then :
 5281   enableval=$enable_silent_rules;
 5282 fi
 5283 
 5284 case $enable_silent_rules in # (((
 5285   yes) AM_DEFAULT_VERBOSITY=0;;
 5286    no) AM_DEFAULT_VERBOSITY=1;;
 5287     *) AM_DEFAULT_VERBOSITY=0;;
 5288 esac
 5289 am_make=${MAKE-make}
 5290 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
 5291 $as_echo_n "checking whether $am_make supports nested variables... " >&6; }
 5292 if ${am_cv_make_support_nested_variables+:} false; then :
 5293   $as_echo_n "(cached) " >&6
 5294 else
 5295   if $as_echo 'TRUE=$(BAR$(V))
 5296 BAR0=false
 5297 BAR1=true
 5298 V=1
 5299 am__doit:
 5300     @$(TRUE)
 5301 .PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
 5302   am_cv_make_support_nested_variables=yes
 5303 else
 5304   am_cv_make_support_nested_variables=no
 5305 fi
 5306 fi
 5307 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
 5308 $as_echo "$am_cv_make_support_nested_variables" >&6; }
 5309 if test $am_cv_make_support_nested_variables = yes; then
 5310     AM_V='$(V)'
 5311   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 5312 else
 5313   AM_V=$AM_DEFAULT_VERBOSITY
 5314   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 5315 fi
 5316 AM_BACKSLASH='\'
 5317 
 5318 
 5319 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
 5320 $as_echo_n "checking whether build environment is sane... " >&6; }
 5321 # Reject unsafe characters in $srcdir or the absolute working directory
 5322 # name.  Accept space and tab only in the latter.
 5323 am_lf='
 5324 '
 5325 case `pwd` in
 5326   *[\\\"\#\$\&\'\`$am_lf]*)
 5327     as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
 5328 esac
 5329 case $srcdir in
 5330   *[\\\"\#\$\&\'\`$am_lf\ \ ]*)
 5331     as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
 5332 esac
 5333 
 5334 # Do 'set' in a subshell so we don't clobber the current shell's
 5335 # arguments.  Must try -L first in case configure is actually a
 5336 # symlink; some systems play weird games with the mod time of symlinks
 5337 # (eg FreeBSD returns the mod time of the symlink's containing
 5338 # directory).
 5339 if (
 5340    am_has_slept=no
 5341    for am_try in 1 2; do
 5342      echo "timestamp, slept: $am_has_slept" > conftest.file
 5343      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 5344      if test "$*" = "X"; then
 5345     # -L didn't work.
 5346     set X `ls -t "$srcdir/configure" conftest.file`
 5347      fi
 5348      if test "$*" != "X $srcdir/configure conftest.file" \
 5349     && test "$*" != "X conftest.file $srcdir/configure"; then
 5350 
 5351     # If neither matched, then we have a broken ls.  This can happen
 5352     # if, for instance, CONFIG_SHELL is bash and it inherits a
 5353     # broken ls alias from the environment.  This has actually
 5354     # happened.  Such a system could not be considered "sane".
 5355     as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
 5356   alias in your environment" "$LINENO" 5
 5357      fi
 5358      if test "$2" = conftest.file || test $am_try -eq 2; then
 5359        break
 5360      fi
 5361      # Just in case.
 5362      sleep 1
 5363      am_has_slept=yes
 5364    done
 5365    test "$2" = conftest.file
 5366    )
 5367 then
 5368    # Ok.
 5369    :
 5370 else
 5371    as_fn_error $? "newly created file is older than distributed files!
 5372 Check your system clock" "$LINENO" 5
 5373 fi
 5374 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 5375 $as_echo "yes" >&6; }
 5376 # If we didn't sleep, we still need to ensure time stamps of config.status and
 5377 # generated files are strictly newer.
 5378 am_sleep_pid=
 5379 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 5380   ( sleep 1 ) &
 5381   am_sleep_pid=$!
 5382 fi
 5383 
 5384 rm -f conftest.file
 5385 
 5386 
 5387 
 5388 
 5389  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Please note that we set empty defaults for CFLAGS and CXXFLAGS" >&5
 5390 $as_echo "$as_me: WARNING: Please note that we set empty defaults for CFLAGS and CXXFLAGS" >&2;}
 5391  : ${CFLAGS:=""}
 5392  : ${CXXFLAGS:=""}
 5393 
 5394 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts " >&5
 5395 $as_echo_n "checking whether C compiler accepts ... " >&6; }
 5396 if ${ax_cv_check_cflags__+:} false; then :
 5397   $as_echo_n "(cached) " >&6
 5398 else
 5399 
 5400   ax_check_save_flags=$CFLAGS
 5401   CFLAGS="