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https://doi.org/10.5281/zenodo.8075681
29 October 2025, 17:21:42 UTC
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    • ea30f42
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    • danielver02-ALPS-220597d
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    • configure
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    Generate software citation in BibTex format (requires biblatex-software package)
    Generating citation ...
    Generate software citation in BibTex format (requires biblatex-software package)
    Generating citation ...
    Generate software citation in BibTex format (requires biblatex-software package)
    Generating citation ...
    Generate software citation in BibTex format (requires biblatex-software package)
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    configure
    #! /bin/sh
    # Guess values for system-dependent variables and create Makefiles.
    # Generated by GNU Autoconf 2.72 for ALPS 1.0.
    #
    # Report bugs to <d.verscharen@ucl.ac.uk>.
    #
    #
    # Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
    # Inc.
    #
    #
    # This configure script is free software; the Free Software Foundation
    # gives unlimited permission to copy, distribute and modify it.
    ## -------------------- ##
    ## M4sh Initialization. ##
    ## -------------------- ##
    
    # Be more Bourne compatible
    DUALCASE=1; export DUALCASE # for MKS sh
    if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
    then :
      emulate sh
      NULLCMD=:
      # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
      # is contrary to our usage.  Disable this feature.
      alias -g '${1+"$@"}'='"$@"'
      setopt NO_GLOB_SUBST
    else case e in #(
      e) case `(set -o) 2>/dev/null` in #(
      *posix*) :
        set -o posix ;; #(
      *) :
         ;;
    esac ;;
    esac
    fi
    
    
    
    # Reset variables that may have inherited troublesome values from
    # the environment.
    
    # IFS needs to be set, to space, tab, and newline, in precisely that order.
    # (If _AS_PATH_WALK were called with IFS unset, it would have the
    # side effect of setting IFS to empty, thus disabling word splitting.)
    # Quoting is to prevent editors from complaining about space-tab.
    as_nl='
    '
    export as_nl
    IFS=" ""	$as_nl"
    
    PS1='$ '
    PS2='> '
    PS4='+ '
    
    # Ensure predictable behavior from utilities with locale-dependent output.
    LC_ALL=C
    export LC_ALL
    LANGUAGE=C
    export LANGUAGE
    
    # We cannot yet rely on "unset" to work, but we need these variables
    # to be unset--not just set to an empty or harmless value--now, to
    # avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
    # also avoids known problems related to "unset" and subshell syntax
    # in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
    for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
    do eval test \${$as_var+y} \
      && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
    done
    
    # Ensure that fds 0, 1, and 2 are open.
    if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
    if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
    if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
    
    # The user is always right.
    if ${PATH_SEPARATOR+false} :; then
      PATH_SEPARATOR=:
      (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
        (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
          PATH_SEPARATOR=';'
      }
    fi
    
    
    # Find who we are.  Look in the path if we contain no directory separator.
    as_myself=
    case $0 in #((
      *[\\/]* ) as_myself=$0 ;;
      *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        test -r "$as_dir$0" && as_myself=$as_dir$0 && break
      done
    IFS=$as_save_IFS
    
         ;;
    esac
    # We did not find ourselves, most probably we were run as 'sh COMMAND'
    # in which case we are not to be found in the path.
    if test "x$as_myself" = x; then
      as_myself=$0
    fi
    if test ! -f "$as_myself"; then
      printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
      exit 1
    fi
    
    
    # Use a proper internal environment variable to ensure we don't fall
      # into an infinite loop, continuously re-executing ourselves.
      if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
        _as_can_reexec=no; export _as_can_reexec;
        # We cannot yet assume a decent shell, so we have to provide a
    # neutralization value for shells without unset; and this also
    # works around shells that cannot unset nonexistent variables.
    # Preserve -v and -x to the replacement shell.
    BASH_ENV=/dev/null
    ENV=/dev/null
    (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
    case $- in # ((((
      *v*x* | *x*v* ) as_opts=-vx ;;
      *v* ) as_opts=-v ;;
      *x* ) as_opts=-x ;;
      * ) as_opts= ;;
    esac
    exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
    # Admittedly, this is quite paranoid, since all the known shells bail
    # out after a failed 'exec'.
    printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
    exit 255
      fi
      # We don't want this to propagate to other subprocesses.
              { _as_can_reexec=; unset _as_can_reexec;}
    if test "x$CONFIG_SHELL" = x; then
      as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
    then :
      emulate sh
      NULLCMD=:
      # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
      # is contrary to our usage.  Disable this feature.
      alias -g '\${1+\"\$@\"}'='\"\$@\"'
      setopt NO_GLOB_SUBST
    else case e in #(
      e) case \`(set -o) 2>/dev/null\` in #(
      *posix*) :
        set -o posix ;; #(
      *) :
         ;;
    esac ;;
    esac
    fi
    "
      as_required="as_fn_return () { (exit \$1); }
    as_fn_success () { as_fn_return 0; }
    as_fn_failure () { as_fn_return 1; }
    as_fn_ret_success () { return 0; }
    as_fn_ret_failure () { return 1; }
    
    exitcode=0
    as_fn_success || { exitcode=1; echo as_fn_success failed.; }
    as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
    as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
    as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
    if ( set x; as_fn_ret_success y && test x = \"\$1\" )
    then :
    
    else case e in #(
      e) exitcode=1; echo positional parameters were not saved. ;;
    esac
    fi
    test x\$exitcode = x0 || exit 1
    blah=\$(echo \$(echo blah))
    test x\"\$blah\" = xblah || exit 1
    test -x / || exit 1"
      as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
      as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
      eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
      test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
      if (eval "$as_required") 2>/dev/null
    then :
      as_have_required=yes
    else case e in #(
      e) as_have_required=no ;;
    esac
    fi
      if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
    then :
    
    else case e in #(
      e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    as_found=false
    for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
      as_found=:
      case $as_dir in #(
    	 /*)
    	   for as_base in sh bash ksh sh5; do
    	     # Try only shells that exist, to save several forks.
    	     as_shell=$as_dir$as_base
    	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
    		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
    then :
      CONFIG_SHELL=$as_shell as_have_required=yes
    		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
    then :
      break 2
    fi
    fi
    	   done;;
           esac
      as_found=false
    done
    IFS=$as_save_IFS
    if $as_found
    then :
    
    else case e in #(
      e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
    	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
    then :
      CONFIG_SHELL=$SHELL as_have_required=yes
    fi ;;
    esac
    fi
    
    
          if test "x$CONFIG_SHELL" != x
    then :
      export CONFIG_SHELL
                 # We cannot yet assume a decent shell, so we have to provide a
    # neutralization value for shells without unset; and this also
    # works around shells that cannot unset nonexistent variables.
    # Preserve -v and -x to the replacement shell.
    BASH_ENV=/dev/null
    ENV=/dev/null
    (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
    case $- in # ((((
      *v*x* | *x*v* ) as_opts=-vx ;;
      *v* ) as_opts=-v ;;
      *x* ) as_opts=-x ;;
      * ) as_opts= ;;
    esac
    exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
    # Admittedly, this is quite paranoid, since all the known shells bail
    # out after a failed 'exec'.
    printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
    exit 255
    fi
    
        if test x$as_have_required = xno
    then :
      printf "%s\n" "$0: This script requires a shell more modern than all"
      printf "%s\n" "$0: the shells that I found on your system."
      if test ${ZSH_VERSION+y} ; then
        printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
        printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
      else
        printf "%s\n" "$0: Please tell bug-autoconf@gnu.org and
    $0: d.verscharen@ucl.ac.uk about your system, including any
    $0: error possibly output before this message. Then install
    $0: a modern shell, or manually run the script under such a
    $0: shell if you do have one."
      fi
      exit 1
    fi ;;
    esac
    fi
    fi
    SHELL=${CONFIG_SHELL-/bin/sh}
    export SHELL
    # Unset more variables known to interfere with behavior of common tools.
    CLICOLOR_FORCE= GREP_OPTIONS=
    unset CLICOLOR_FORCE GREP_OPTIONS
    
    ## --------------------- ##
    ## M4sh Shell Functions. ##
    ## --------------------- ##
    # as_fn_unset VAR
    # ---------------
    # Portably unset VAR.
    as_fn_unset ()
    {
      { eval $1=; unset $1;}
    }
    as_unset=as_fn_unset
    
    
    # as_fn_set_status STATUS
    # -----------------------
    # Set $? to STATUS, without forking.
    as_fn_set_status ()
    {
      return $1
    } # as_fn_set_status
    
    # as_fn_exit STATUS
    # -----------------
    # Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
    as_fn_exit ()
    {
      set +e
      as_fn_set_status $1
      exit $1
    } # as_fn_exit
    
    # as_fn_mkdir_p
    # -------------
    # Create "$as_dir" as a directory, including parents if necessary.
    as_fn_mkdir_p ()
    {
    
      case $as_dir in #(
      -*) as_dir=./$as_dir;;
      esac
      test -d "$as_dir" || eval $as_mkdir_p || {
        as_dirs=
        while :; do
          case $as_dir in #(
          *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
          *) as_qdir=$as_dir;;
          esac
          as_dirs="'$as_qdir' $as_dirs"
          as_dir=`$as_dirname -- "$as_dir" ||
    $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
    	 X"$as_dir" : 'X\(//\)[^/]' \| \
    	 X"$as_dir" : 'X\(//\)$' \| \
    	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$as_dir" |
        sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
          test -d "$as_dir" && break
        done
        test -z "$as_dirs" || eval "mkdir $as_dirs"
      } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
    
    
    } # as_fn_mkdir_p
    
    # as_fn_executable_p FILE
    # -----------------------
    # Test if FILE is an executable regular file.
    as_fn_executable_p ()
    {
      test -f "$1" && test -x "$1"
    } # as_fn_executable_p
    # as_fn_append VAR VALUE
    # ----------------------
    # Append the text in VALUE to the end of the definition contained in VAR. Take
    # advantage of any shell optimizations that allow amortized linear growth over
    # repeated appends, instead of the typical quadratic growth present in naive
    # implementations.
    if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
    then :
      eval 'as_fn_append ()
      {
        eval $1+=\$2
      }'
    else case e in #(
      e) as_fn_append ()
      {
        eval $1=\$$1\$2
      } ;;
    esac
    fi # as_fn_append
    
    # as_fn_arith ARG...
    # ------------------
    # Perform arithmetic evaluation on the ARGs, and store the result in the
    # global $as_val. Take advantage of shells that can avoid forks. The arguments
    # must be portable across $(()) and expr.
    if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
    then :
      eval 'as_fn_arith ()
      {
        as_val=$(( $* ))
      }'
    else case e in #(
      e) as_fn_arith ()
      {
        as_val=`expr "$@" || test $? -eq 1`
      } ;;
    esac
    fi # as_fn_arith
    
    
    # as_fn_error STATUS ERROR [LINENO LOG_FD]
    # ----------------------------------------
    # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
    # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
    # script with STATUS, using 1 if that was 0.
    as_fn_error ()
    {
      as_status=$1; test $as_status -eq 0 && as_status=1
      if test "$4"; then
        as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
      fi
      printf "%s\n" "$as_me: error: $2" >&2
      as_fn_exit $as_status
    } # as_fn_error
    
    if expr a : '\(a\)' >/dev/null 2>&1 &&
       test "X`expr 00001 : '.*\(...\)'`" = X001; then
      as_expr=expr
    else
      as_expr=false
    fi
    
    if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
      as_basename=basename
    else
      as_basename=false
    fi
    
    if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
      as_dirname=dirname
    else
      as_dirname=false
    fi
    
    as_me=`$as_basename -- "$0" ||
    $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
    	 X"$0" : 'X\(//\)$' \| \
    	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X/"$0" |
        sed '/^.*\/\([^/][^/]*\)\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
    
    # Avoid depending upon Character Ranges.
    as_cr_letters='abcdefghijklmnopqrstuvwxyz'
    as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    as_cr_Letters=$as_cr_letters$as_cr_LETTERS
    as_cr_digits='0123456789'
    as_cr_alnum=$as_cr_Letters$as_cr_digits
    
    
      as_lineno_1=$LINENO as_lineno_1a=$LINENO
      as_lineno_2=$LINENO as_lineno_2a=$LINENO
      eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
      test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
      # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
      sed -n '
        p
        /[$]LINENO/=
      ' <$as_myself |
        sed '
          t clear
          :clear
          s/[$]LINENO.*/&-/
          t lineno
          b
          :lineno
          N
          :loop
          s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
          t loop
          s/-\n.*//
        ' >$as_me.lineno &&
      chmod +x "$as_me.lineno" ||
        { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
    
      # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
      # already done that, so ensure we don't try to do so again and fall
      # in an infinite loop.  This has already happened in practice.
      _as_can_reexec=no; export _as_can_reexec
      # Don't try to exec as it changes $[0], causing all sort of problems
      # (the dirname of $[0] is not the place where we might find the
      # original and so on.  Autoconf is especially sensitive to this).
      . "./$as_me.lineno"
      # Exit status is that of the last command.
      exit
    }
    
    
    # Determine whether it's possible to make 'echo' print without a newline.
    # These variables are no longer used directly by Autoconf, but are AC_SUBSTed
    # for compatibility with existing Makefiles.
    ECHO_C= ECHO_N= ECHO_T=
    case `echo -n x` in #(((((
    -n*)
      case `echo 'xy\c'` in
      *c*) ECHO_T='	';;	# ECHO_T is single tab character.
      xy)  ECHO_C='\c';;
      *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
           ECHO_T='	';;
      esac;;
    *)
      ECHO_N='-n';;
    esac
    
    # For backward compatibility with old third-party macros, we provide
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    # AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
    as_echo='printf %s\n'
    as_echo_n='printf %s'
    
    rm -f conf$$ conf$$.exe conf$$.file
    if test -d conf$$.dir; then
      rm -f conf$$.dir/conf$$.file
    else
      rm -f conf$$.dir
      mkdir conf$$.dir 2>/dev/null
    fi
    if (echo >conf$$.file) 2>/dev/null; then
      if ln -s conf$$.file conf$$ 2>/dev/null; then
        as_ln_s='ln -s'
        # ... but there are two gotchas:
        # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
        # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
        # In both cases, we have to default to 'cp -pR'.
        ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
          as_ln_s='cp -pR'
      elif ln conf$$.file conf$$ 2>/dev/null; then
        as_ln_s=ln
      else
        as_ln_s='cp -pR'
      fi
    else
      as_ln_s='cp -pR'
    fi
    rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
    rmdir conf$$.dir 2>/dev/null
    
    if mkdir -p . 2>/dev/null; then
      as_mkdir_p='mkdir -p "$as_dir"'
    else
      test -d ./-p && rmdir ./-p
      as_mkdir_p=false
    fi
    
    as_test_x='test -x'
    as_executable_p=as_fn_executable_p
    
    # Sed expression to map a string onto a valid CPP name.
    as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
    as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
    
    # Sed expression to map a string onto a valid variable name.
    as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
    as_tr_sh="eval sed '$as_sed_sh'" # deprecated
    
    
    test -n "$DJDIR" || exec 7<&0 </dev/null
    exec 6>&1
    
    # Name of the host.
    # hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
    # so uname gets run too.
    ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
    
    #
    # Initializations.
    #
    ac_default_prefix=/usr/local
    ac_clean_files=
    ac_config_libobj_dir=.
    LIBOBJS=
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      -gas | --gas | --ga | --g)
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      -includedir | --includedir | --includedi | --included | --include \
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      -infodir | --infodir | --infodi | --infod | --info | --inf)
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      -localstatedir | --localstatedir | --localstatedi | --localstated \
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      -psdir | --psdir | --psdi | --psd | --ps)
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      -q | -quiet | --quiet | --quie | --qui | --qu | --q \
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      -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
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      -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
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      as_fn_error $? "working directory cannot be determined"
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      as_fn_error $? "pwd does not report name of working directory"
    
    
    # Find the source files, if location was not specified.
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      ac_srcdir_defaulted=yes
      # Try the directory containing this script, then the parent directory.
      ac_confdir=`$as_dirname -- "$as_myself" ||
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    	 X"$as_myself" : 'X\(//\)$' \| \
    	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$as_myself" |
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    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
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    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
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    	  s/.*/./; q'`
      srcdir=$ac_confdir
      if test ! -r "$srcdir/$ac_unique_file"; then
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    ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
    ac_abs_confdir=`(
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    # When building in place, set srcdir=.
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    # Remove unnecessary trailing slashes from srcdir.
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    # mess up M-x gdb in Emacs.
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    #
    # Report the --help message.
    #
    if test "$ac_init_help" = "long"; then
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      # This message is too long to be a string in the A/UX 3.1 sh.
      cat <<_ACEOF
    'configure' configures ALPS 1.0 to adapt to many kinds of systems.
    
    Usage: $0 [OPTION]... [VAR=VALUE]...
    
    To assign environment variables (e.g., CC, CFLAGS...), specify them as
    VAR=VALUE.  See below for descriptions of some of the useful variables.
    
    Defaults for the options are specified in brackets.
    
    Configuration:
      -h, --help              display this help and exit
          --help=short        display options specific to this package
          --help=recursive    display the short help of all the included packages
      -V, --version           display version information and exit
      -q, --quiet, --silent   do not print 'checking ...' messages
          --cache-file=FILE   cache test results in FILE [disabled]
      -C, --config-cache      alias for '--cache-file=config.cache'
      -n, --no-create         do not create output files
          --srcdir=DIR        find the sources in DIR [configure dir or '..']
    
    Installation directories:
      --prefix=PREFIX         install architecture-independent files in PREFIX
                              [$ac_default_prefix]
      --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                              [PREFIX]
    
    By default, 'make install' will install all the files in
    '$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
    an installation prefix other than '$ac_default_prefix' using '--prefix',
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    For better control, use the options below.
    
    Fine tuning of the installation directories:
      --bindir=DIR            user executables [EPREFIX/bin]
      --sbindir=DIR           system admin executables [EPREFIX/sbin]
      --libexecdir=DIR        program executables [EPREFIX/libexec]
      --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
      --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
      --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
      --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
      --libdir=DIR            object code libraries [EPREFIX/lib]
      --includedir=DIR        C header files [PREFIX/include]
      --oldincludedir=DIR     C header files for non-gcc [/usr/include]
      --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
      --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
      --infodir=DIR           info documentation [DATAROOTDIR/info]
      --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
      --mandir=DIR            man documentation [DATAROOTDIR/man]
      --docdir=DIR            documentation root [DATAROOTDIR/doc/alps]
      --htmldir=DIR           html documentation [DOCDIR]
      --dvidir=DIR            dvi documentation [DOCDIR]
      --pdfdir=DIR            pdf documentation [DOCDIR]
      --psdir=DIR             ps documentation [DOCDIR]
    _ACEOF
    
      cat <<\_ACEOF
    
    Program names:
      --program-prefix=PREFIX            prepend PREFIX to installed program names
      --program-suffix=SUFFIX            append SUFFIX to installed program names
      --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
    _ACEOF
    fi
    
    if test -n "$ac_init_help"; then
      case $ac_init_help in
         short | recursive ) echo "Configuration of ALPS 1.0:";;
       esac
      cat <<\_ACEOF
    
    Optional Features:
      --disable-option-checking  ignore unrecognized --enable/--with options
      --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
      --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
      --enable-silent-rules   less verbose build output (undo: "make V=1")
      --disable-silent-rules  verbose build output (undo: "make V=0")
      --enable-dependency-tracking
                              do not reject slow dependency extractors
      --disable-dependency-tracking
                              speeds up one-time build
    
    Optional Packages:
      --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
      --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
      --with-blas=LIBS        Specify BLAS libraries to link, e.g., -lopenblas
      --with-lapack=LIBS      Specify LAPACK libraries to link, e.g., -llapack
    
    Some influential environment variables:
      CC          C compiler command
      CFLAGS      C compiler flags
      LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
                  nonstandard directory <lib dir>
      LIBS        libraries to pass to the linker, e.g. -l<library>
      CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
                  you have headers in a nonstandard directory <include dir>
      FC          Fortran compiler command
      FCFLAGS     Fortran compiler flags
    
    Use these variables to override the choices made by 'configure' or to help
    it to find libraries and programs with nonstandard names/locations.
    
    Report bugs to <d.verscharen@ucl.ac.uk>.
    _ACEOF
    ac_status=$?
    fi
    
    if test "$ac_init_help" = "recursive"; then
      # If there are subdirs, report their specific --help.
      for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
        test -d "$ac_dir" ||
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        ac_builddir=.
    
    case "$ac_dir" in
    .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
    *)
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      ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
      case $ac_top_builddir_sub in
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      *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
      esac ;;
    esac
    ac_abs_top_builddir=$ac_pwd
    ac_abs_builddir=$ac_pwd$ac_dir_suffix
    # for backward compatibility:
    ac_top_builddir=$ac_top_build_prefix
    
    case $srcdir in
      .)  # We are building in place.
        ac_srcdir=.
        ac_top_srcdir=$ac_top_builddir_sub
        ac_abs_top_srcdir=$ac_pwd ;;
      [\\/]* | ?:[\\/]* )  # Absolute name.
        ac_srcdir=$srcdir$ac_dir_suffix;
        ac_top_srcdir=$srcdir
        ac_abs_top_srcdir=$srcdir ;;
      *) # Relative name.
        ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
        ac_top_srcdir=$ac_top_build_prefix$srcdir
        ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
    esac
    ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
    
        cd "$ac_dir" || { ac_status=$?; continue; }
        # Check for configure.gnu first; this name is used for a wrapper for
        # Metaconfig's "Configure" on case-insensitive file systems.
        if test -f "$ac_srcdir/configure.gnu"; then
          echo &&
          $SHELL "$ac_srcdir/configure.gnu" --help=recursive
        elif test -f "$ac_srcdir/configure"; then
          echo &&
          $SHELL "$ac_srcdir/configure" --help=recursive
        else
          printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
        fi || ac_status=$?
        cd "$ac_pwd" || { ac_status=$?; break; }
      done
    fi
    
    test -n "$ac_init_help" && exit $ac_status
    if $ac_init_version; then
      cat <<\_ACEOF
    ALPS configure 1.0
    generated by GNU Autoconf 2.72
    
    Copyright (C) 2023 Free Software Foundation, Inc.
    This configure script is free software; the Free Software Foundation
    gives unlimited permission to copy, distribute and modify it.
    _ACEOF
      exit
    fi
    
    ## ------------------------ ##
    ## Autoconf initialization. ##
    ## ------------------------ ##
    
    # ac_fn_c_try_compile LINENO
    # --------------------------
    # Try to compile conftest.$ac_ext, and return whether this succeeded.
    ac_fn_c_try_compile ()
    {
      as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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      if { { ac_try="$ac_compile"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_compile") 2>conftest.err
      ac_status=$?
      if test -s conftest.err; then
        grep -v '^ *+' conftest.err >conftest.er1
        cat conftest.er1 >&5
        mv -f conftest.er1 conftest.err
      fi
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; } && {
    	 test -z "$ac_c_werror_flag" ||
    	 test ! -s conftest.err
           } && test -s conftest.$ac_objext
    then :
      ac_retval=0
    else case e in #(
      e) printf "%s\n" "$as_me: failed program was:" >&5
    sed 's/^/| /' conftest.$ac_ext >&5
    
    	ac_retval=1 ;;
    esac
    fi
      eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
      as_fn_set_status $ac_retval
    
    } # ac_fn_c_try_compile
    
    # ac_fn_fc_try_compile LINENO
    # ---------------------------
    # Try to compile conftest.$ac_ext, and return whether this succeeded.
    ac_fn_fc_try_compile ()
    {
      as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
      rm -f conftest.$ac_objext conftest.beam
      if { { ac_try="$ac_compile"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_compile") 2>conftest.err
      ac_status=$?
      if test -s conftest.err; then
        grep -v '^ *+' conftest.err >conftest.er1
        cat conftest.er1 >&5
        mv -f conftest.er1 conftest.err
      fi
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; } && {
    	 test -z "$ac_fc_werror_flag" ||
    	 test ! -s conftest.err
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    then :
      ac_retval=0
    else case e in #(
      e) printf "%s\n" "$as_me: failed program was:" >&5
    sed 's/^/| /' conftest.$ac_ext >&5
    
    	ac_retval=1 ;;
    esac
    fi
      eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
      as_fn_set_status $ac_retval
    
    } # ac_fn_fc_try_compile
    
    # ac_fn_fc_try_link LINENO
    # ------------------------
    # Try to link conftest.$ac_ext, and return whether this succeeded.
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      ac_status=$?
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        cat conftest.er1 >&5
        mv -f conftest.er1 conftest.err
      fi
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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    	 test "$cross_compiling" = yes ||
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           }
    then :
      ac_retval=0
    else case e in #(
      e) printf "%s\n" "$as_me: failed program was:" >&5
    sed 's/^/| /' conftest.$ac_ext >&5
    
    	ac_retval=1 ;;
    esac
    fi
      # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
      # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
      # interfere with the next link command; also delete a directory that is
      # left behind by Apple's compiler.  We do this before executing the actions.
      rm -rf conftest.dSYM conftest_ipa8_conftest.oo
      eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
      as_fn_set_status $ac_retval
    
    } # ac_fn_fc_try_link
    ac_configure_args_raw=
    for ac_arg
    do
      case $ac_arg in
      *\'*)
        ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
      esac
      as_fn_append ac_configure_args_raw " '$ac_arg'"
    done
    
    case $ac_configure_args_raw in
      *$as_nl*)
        ac_safe_unquote= ;;
      *)
        ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
        ac_unsafe_a="$ac_unsafe_z#~"
        ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
        ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
    esac
    
    cat >config.log <<_ACEOF
    This file contains any messages produced by compilers while
    running configure, to aid debugging if configure makes a mistake.
    
    It was created by ALPS $as_me 1.0, which was
    generated by GNU Autoconf 2.72.  Invocation command line was
    
      $ $0$ac_configure_args_raw
    
    _ACEOF
    exec 5>>config.log
    {
    cat <<_ASUNAME
    ## --------- ##
    ## Platform. ##
    ## --------- ##
    
    hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
    uname -m = `(uname -m) 2>/dev/null || echo unknown`
    uname -r = `(uname -r) 2>/dev/null || echo unknown`
    uname -s = `(uname -s) 2>/dev/null || echo unknown`
    uname -v = `(uname -v) 2>/dev/null || echo unknown`
    
    /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
    /bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
    
    /bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
    /usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
    /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
    /usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
    /bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
    /usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
    /bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
    
    _ASUNAME
    
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        printf "%s\n" "PATH: $as_dir"
      done
    IFS=$as_save_IFS
    
    } >&5
    
    cat >&5 <<_ACEOF
    
    
    ## ----------- ##
    ## Core tests. ##
    ## ----------- ##
    
    _ACEOF
    
    
    # Keep a trace of the command line.
    # Strip out --no-create and --no-recursion so they do not pile up.
    # Strip out --silent because we don't want to record it for future runs.
    # Also quote any args containing shell meta-characters.
    # Make two passes to allow for proper duplicate-argument suppression.
    ac_configure_args=
    ac_configure_args0=
    ac_configure_args1=
    ac_must_keep_next=false
    for ac_pass in 1 2
    do
      for ac_arg
      do
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        -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
        -q | -quiet | --quiet | --quie | --qui | --qu | --q \
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          continue ;;
        *\'*)
          ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
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        2)
          as_fn_append ac_configure_args1 " '$ac_arg'"
          if test $ac_must_keep_next = true; then
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          else
    	case $ac_arg in
    	  *=* | --config-cache | -C | -disable-* | --disable-* \
    	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
    	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
    	  | -with-* | --with-* | -without-* | --without-* | --x)
    	    case "$ac_configure_args0 " in
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    	    esac
    	    ;;
    	  -* ) ac_must_keep_next=true ;;
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          as_fn_append ac_configure_args " '$ac_arg'"
          ;;
        esac
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    { ac_configure_args0=; unset ac_configure_args0;}
    { ac_configure_args1=; unset ac_configure_args1;}
    
    # When interrupted or exit'd, cleanup temporary files, and complete
    # config.log.  We remove comments because anyway the quotes in there
    # would cause problems or look ugly.
    # WARNING: Use '\'' to represent an apostrophe within the trap.
    # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
    trap 'exit_status=$?
      # Sanitize IFS.
      IFS=" ""	$as_nl"
      # Save into config.log some information that might help in debugging.
      {
        echo
    
        printf "%s\n" "## ---------------- ##
    ## Cache variables. ##
    ## ---------------- ##"
        echo
        # The following way of writing the cache mishandles newlines in values,
    (
      for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
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        case $ac_val in #(
        *${as_nl}*)
          case $ac_var in #(
          *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
    printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
          esac
          case $ac_var in #(
          _ | IFS | as_nl) ;; #(
          BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
          *) { eval $ac_var=; unset $ac_var;} ;;
          esac ;;
        esac
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      (set) 2>&1 |
        case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
        *${as_nl}ac_space=\ *)
          sed -n \
    	"s/'\''/'\''\\\\'\'''\''/g;
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          ;; #(
        *)
          sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
          ;;
        esac |
        sort
    )
        echo
    
        printf "%s\n" "## ----------------- ##
    ## Output variables. ##
    ## ----------------- ##"
        echo
        for ac_var in $ac_subst_vars
        do
          eval ac_val=\$$ac_var
          case $ac_val in
          *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
          esac
          printf "%s\n" "$ac_var='\''$ac_val'\''"
        done | sort
        echo
    
        if test -n "$ac_subst_files"; then
          printf "%s\n" "## ------------------- ##
    ## File substitutions. ##
    ## ------------------- ##"
          echo
          for ac_var in $ac_subst_files
          do
    	eval ac_val=\$$ac_var
    	case $ac_val in
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    	esac
    	printf "%s\n" "$ac_var='\''$ac_val'\''"
          done | sort
          echo
        fi
    
        if test -s confdefs.h; then
          printf "%s\n" "## ----------- ##
    ## confdefs.h. ##
    ## ----------- ##"
          echo
          cat confdefs.h
          echo
        fi
        test "$ac_signal" != 0 &&
          printf "%s\n" "$as_me: caught signal $ac_signal"
        printf "%s\n" "$as_me: exit $exit_status"
      } >&5
      rm -f core *.core core.conftest.* &&
        rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
        exit $exit_status
    ' 0
    for ac_signal in 1 2 13 15; do
      trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
    done
    ac_signal=0
    
    # confdefs.h avoids OS command line length limits that DEFS can exceed.
    rm -f -r conftest* confdefs.h
    
    printf "%s\n" "/* confdefs.h */" > confdefs.h
    
    # Predefined preprocessor variables.
    
    printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
    
    printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
    
    printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
    
    printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
    
    printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
    
    printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
    
    
    # Let the site file select an alternate cache file if it wants to.
    # Prefer an explicitly selected file to automatically selected ones.
    if test -n "$CONFIG_SITE"; then
      ac_site_files="$CONFIG_SITE"
    elif test "x$prefix" != xNONE; then
      ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
    else
      ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
    fi
    
    for ac_site_file in $ac_site_files
    do
      case $ac_site_file in #(
      */*) :
         ;; #(
      *) :
        ac_site_file=./$ac_site_file ;;
    esac
      if test -f "$ac_site_file" && test -r "$ac_site_file"; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
    printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
        sed 's/^/| /' "$ac_site_file" >&5
        . "$ac_site_file" \
          || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "failed to load site script $ac_site_file
    See 'config.log' for more details" "$LINENO" 5; }
      fi
    done
    
    if test -r "$cache_file"; then
      # Some versions of bash will fail to source /dev/null (special files
      # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
      if test /dev/null != "$cache_file" && test -f "$cache_file"; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
    printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
        case $cache_file in
          [\\/]* | ?:[\\/]* ) . "$cache_file";;
          *)                      . "./$cache_file";;
        esac
      fi
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
    printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
      >$cache_file
    fi
    
    # Test code for whether the C compiler supports C89 (global declarations)
    ac_c_conftest_c89_globals='
    /* Does the compiler advertise C89 conformance?
       Do not test the value of __STDC__, because some compilers set it to 0
       while being otherwise adequately conformant. */
    #if !defined __STDC__
    # error "Compiler does not advertise C89 conformance"
    #endif
    
    #include <stddef.h>
    #include <stdarg.h>
    struct stat;
    /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
    struct buf { int x; };
    struct buf * (*rcsopen) (struct buf *, struct stat *, int);
    static char *e (char **p, int i)
    {
      return p[i];
    }
    static char *f (char * (*g) (char **, int), char **p, ...)
    {
      char *s;
      va_list v;
      va_start (v,p);
      s = g (p, va_arg (v,int));
      va_end (v);
      return s;
    }
    
    /* C89 style stringification. */
    #define noexpand_stringify(a) #a
    const char *stringified = noexpand_stringify(arbitrary+token=sequence);
    
    /* C89 style token pasting.  Exercises some of the corner cases that
       e.g. old MSVC gets wrong, but not very hard. */
    #define noexpand_concat(a,b) a##b
    #define expand_concat(a,b) noexpand_concat(a,b)
    extern int vA;
    extern int vbee;
    #define aye A
    #define bee B
    int *pvA = &expand_concat(v,aye);
    int *pvbee = &noexpand_concat(v,bee);
    
    /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
       function prototypes and stuff, but not \xHH hex character constants.
       These do not provoke an error unfortunately, instead are silently treated
       as an "x".  The following induces an error, until -std is added to get
       proper ANSI mode.  Curiously \x00 != x always comes out true, for an
       array size at least.  It is necessary to write \x00 == 0 to get something
       that is true only with -std.  */
    int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];
    
    /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
       inside strings and character constants.  */
    #define FOO(x) '\''x'\''
    int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];
    
    int test (int i, double x);
    struct s1 {int (*f) (int a);};
    struct s2 {int (*f) (double a);};
    int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
                   int, int);'
    
    # Test code for whether the C compiler supports C89 (body of main).
    ac_c_conftest_c89_main='
    ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
    '
    
    # Test code for whether the C compiler supports C99 (global declarations)
    ac_c_conftest_c99_globals='
    /* Does the compiler advertise C99 conformance? */
    #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
    # error "Compiler does not advertise C99 conformance"
    #endif
    
    // See if C++-style comments work.
    
    #include <stdbool.h>
    extern int puts (const char *);
    extern int printf (const char *, ...);
    extern int dprintf (int, const char *, ...);
    extern void *malloc (size_t);
    extern void free (void *);
    
    // Check varargs macros.  These examples are taken from C99 6.10.3.5.
    // dprintf is used instead of fprintf to avoid needing to declare
    // FILE and stderr.
    #define debug(...) dprintf (2, __VA_ARGS__)
    #define showlist(...) puts (#__VA_ARGS__)
    #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
    static void
    test_varargs_macros (void)
    {
      int x = 1234;
      int y = 5678;
      debug ("Flag");
      debug ("X = %d\n", x);
      showlist (The first, second, and third items.);
      report (x>y, "x is %d but y is %d", x, y);
    }
    
    // Check long long types.
    #define BIG64 18446744073709551615ull
    #define BIG32 4294967295ul
    #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
    #if !BIG_OK
      #error "your preprocessor is broken"
    #endif
    #if BIG_OK
    #else
      #error "your preprocessor is broken"
    #endif
    static long long int bignum = -9223372036854775807LL;
    static unsigned long long int ubignum = BIG64;
    
    struct incomplete_array
    {
      int datasize;
      double data[];
    };
    
    struct named_init {
      int number;
      const wchar_t *name;
      double average;
    };
    
    typedef const char *ccp;
    
    static inline int
    test_restrict (ccp restrict text)
    {
      // Iterate through items via the restricted pointer.
      // Also check for declarations in for loops.
      for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
        continue;
      return 0;
    }
    
    // Check varargs and va_copy.
    static bool
    test_varargs (const char *format, ...)
    {
      va_list args;
      va_start (args, format);
      va_list args_copy;
      va_copy (args_copy, args);
    
      const char *str = "";
      int number = 0;
      float fnumber = 0;
    
      while (*format)
        {
          switch (*format++)
    	{
    	case '\''s'\'': // string
    	  str = va_arg (args_copy, const char *);
    	  break;
    	case '\''d'\'': // int
    	  number = va_arg (args_copy, int);
    	  break;
    	case '\''f'\'': // float
    	  fnumber = va_arg (args_copy, double);
    	  break;
    	default:
    	  break;
    	}
        }
      va_end (args_copy);
      va_end (args);
    
      return *str && number && fnumber;
    }
    '
    
    # Test code for whether the C compiler supports C99 (body of main).
    ac_c_conftest_c99_main='
      // Check bool.
      _Bool success = false;
      success |= (argc != 0);
    
      // Check restrict.
      if (test_restrict ("String literal") == 0)
        success = true;
      char *restrict newvar = "Another string";
    
      // Check varargs.
      success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
      test_varargs_macros ();
    
      // Check flexible array members.
      struct incomplete_array *ia =
        malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
      ia->datasize = 10;
      for (int i = 0; i < ia->datasize; ++i)
        ia->data[i] = i * 1.234;
      // Work around memory leak warnings.
      free (ia);
    
      // Check named initializers.
      struct named_init ni = {
        .number = 34,
        .name = L"Test wide string",
        .average = 543.34343,
      };
    
      ni.number = 58;
    
      int dynamic_array[ni.number];
      dynamic_array[0] = argv[0][0];
      dynamic_array[ni.number - 1] = 543;
    
      // work around unused variable warnings
      ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
    	 || dynamic_array[ni.number - 1] != 543);
    '
    
    # Test code for whether the C compiler supports C11 (global declarations)
    ac_c_conftest_c11_globals='
    /* Does the compiler advertise C11 conformance? */
    #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
    # error "Compiler does not advertise C11 conformance"
    #endif
    
    // Check _Alignas.
    char _Alignas (double) aligned_as_double;
    char _Alignas (0) no_special_alignment;
    extern char aligned_as_int;
    char _Alignas (0) _Alignas (int) aligned_as_int;
    
    // Check _Alignof.
    enum
    {
      int_alignment = _Alignof (int),
      int_array_alignment = _Alignof (int[100]),
      char_alignment = _Alignof (char)
    };
    _Static_assert (0 < -_Alignof (int), "_Alignof is signed");
    
    // Check _Noreturn.
    int _Noreturn does_not_return (void) { for (;;) continue; }
    
    // Check _Static_assert.
    struct test_static_assert
    {
      int x;
      _Static_assert (sizeof (int) <= sizeof (long int),
                      "_Static_assert does not work in struct");
      long int y;
    };
    
    // Check UTF-8 literals.
    #define u8 syntax error!
    char const utf8_literal[] = u8"happens to be ASCII" "another string";
    
    // Check duplicate typedefs.
    typedef long *long_ptr;
    typedef long int *long_ptr;
    typedef long_ptr long_ptr;
    
    // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
    struct anonymous
    {
      union {
        struct { int i; int j; };
        struct { int k; long int l; } w;
      };
      int m;
    } v1;
    '
    
    # Test code for whether the C compiler supports C11 (body of main).
    ac_c_conftest_c11_main='
      _Static_assert ((offsetof (struct anonymous, i)
    		   == offsetof (struct anonymous, w.k)),
    		  "Anonymous union alignment botch");
      v1.i = 2;
      v1.w.k = 5;
      ok |= v1.i != 5;
    '
    
    # Test code for whether the C compiler supports C11 (complete).
    ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
    ${ac_c_conftest_c99_globals}
    ${ac_c_conftest_c11_globals}
    
    int
    main (int argc, char **argv)
    {
      int ok = 0;
      ${ac_c_conftest_c89_main}
      ${ac_c_conftest_c99_main}
      ${ac_c_conftest_c11_main}
      return ok;
    }
    "
    
    # Test code for whether the C compiler supports C99 (complete).
    ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
    ${ac_c_conftest_c99_globals}
    
    int
    main (int argc, char **argv)
    {
      int ok = 0;
      ${ac_c_conftest_c89_main}
      ${ac_c_conftest_c99_main}
      return ok;
    }
    "
    
    # Test code for whether the C compiler supports C89 (complete).
    ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}
    
    int
    main (int argc, char **argv)
    {
      int ok = 0;
      ${ac_c_conftest_c89_main}
      return ok;
    }
    "
    
    
    # Auxiliary files required by this configure script.
    ac_aux_files="compile missing install-sh"
    
    # Locations in which to look for auxiliary files.
    ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.."
    
    # Search for a directory containing all of the required auxiliary files,
    # $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
    # If we don't find one directory that contains all the files we need,
    # we report the set of missing files from the *first* directory in
    # $ac_aux_dir_candidates and give up.
    ac_missing_aux_files=""
    ac_first_candidate=:
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    as_found=false
    for as_dir in $ac_aux_dir_candidates
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
      as_found=:
    
      printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
      ac_aux_dir_found=yes
      ac_install_sh=
      for ac_aux in $ac_aux_files
      do
        # As a special case, if "install-sh" is required, that requirement
        # can be satisfied by any of "install-sh", "install.sh", or "shtool",
        # and $ac_install_sh is set appropriately for whichever one is found.
        if test x"$ac_aux" = x"install-sh"
        then
          if test -f "${as_dir}install-sh"; then
            printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
            ac_install_sh="${as_dir}install-sh -c"
          elif test -f "${as_dir}install.sh"; then
            printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
            ac_install_sh="${as_dir}install.sh -c"
          elif test -f "${as_dir}shtool"; then
            printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
            ac_install_sh="${as_dir}shtool install -c"
          else
            ac_aux_dir_found=no
            if $ac_first_candidate; then
              ac_missing_aux_files="${ac_missing_aux_files} install-sh"
            else
              break
            fi
          fi
        else
          if test -f "${as_dir}${ac_aux}"; then
            printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
          else
            ac_aux_dir_found=no
            if $ac_first_candidate; then
              ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
            else
              break
            fi
          fi
        fi
      done
      if test "$ac_aux_dir_found" = yes; then
        ac_aux_dir="$as_dir"
        break
      fi
      ac_first_candidate=false
    
      as_found=false
    done
    IFS=$as_save_IFS
    if $as_found
    then :
    
    else case e in #(
      e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
    esac
    fi
    
    
    # These three variables are undocumented and unsupported,
    # and are intended to be withdrawn in a future Autoconf release.
    # They can cause serious problems if a builder's source tree is in a directory
    # whose full name contains unusual characters.
    if test -f "${ac_aux_dir}config.guess"; then
      ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
    fi
    if test -f "${ac_aux_dir}config.sub"; then
      ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
    fi
    if test -f "$ac_aux_dir/configure"; then
      ac_configure="$SHELL ${ac_aux_dir}configure"
    fi
    
    # Check that the precious variables saved in the cache have kept the same
    # value.
    ac_cache_corrupted=false
    for ac_var in $ac_precious_vars; do
      eval ac_old_set=\$ac_cv_env_${ac_var}_set
      eval ac_new_set=\$ac_env_${ac_var}_set
      eval ac_old_val=\$ac_cv_env_${ac_var}_value
      eval ac_new_val=\$ac_env_${ac_var}_value
      case $ac_old_set,$ac_new_set in
        set,)
          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
    printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
          ac_cache_corrupted=: ;;
        ,set)
          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
    printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
          ac_cache_corrupted=: ;;
        ,);;
        *)
          if test "x$ac_old_val" != "x$ac_new_val"; then
    	# differences in whitespace do not lead to failure.
    	ac_old_val_w=`echo x $ac_old_val`
    	ac_new_val_w=`echo x $ac_new_val`
    	if test "$ac_old_val_w" != "$ac_new_val_w"; then
    	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
    printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
    	  ac_cache_corrupted=:
    	else
    	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
    printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
    	  eval $ac_var=\$ac_old_val
    	fi
    	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
    printf "%s\n" "$as_me:   former value:  '$ac_old_val'" >&2;}
    	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
    printf "%s\n" "$as_me:   current value: '$ac_new_val'" >&2;}
          fi;;
      esac
      # Pass precious variables to config.status.
      if test "$ac_new_set" = set; then
        case $ac_new_val in
        *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
        *) ac_arg=$ac_var=$ac_new_val ;;
        esac
        case " $ac_configure_args " in
          *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
          *) as_fn_append ac_configure_args " '$ac_arg'" ;;
        esac
      fi
    done
    if $ac_cache_corrupted; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
    printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
      as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
    	    and start over" "$LINENO" 5
    fi
    ## -------------------- ##
    ## Main body of script. ##
    ## -------------------- ##
    
    ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    
    
    
    am__api_version='1.17'
    
    
    
      # Find a good install program.  We prefer a C program (faster),
    # so one script is as good as another.  But avoid the broken or
    # incompatible versions:
    # SysV /etc/install, /usr/sbin/install
    # SunOS /usr/etc/install
    # IRIX /sbin/install
    # AIX /bin/install
    # AmigaOS /C/install, which installs bootblocks on floppy discs
    # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
    # AFS /usr/afsws/bin/install, which mishandles nonexistent args
    # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
    # OS/2's system install, which has a completely different semantic
    # ./install, which can be erroneously created by make from ./install.sh.
    # Reject install programs that cannot install multiple files.
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
    printf %s "checking for a BSD-compatible install... " >&6; }
    if test -z "$INSTALL"; then
    if test ${ac_cv_path_install+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        # Account for fact that we put trailing slashes in our PATH walk.
    case $as_dir in #((
      ./ | /[cC]/* | \
      /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
      ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
      /usr/ucb/* ) ;;
      *)
        # OSF1 and SCO ODT 3.0 have their own names for install.
        # Don't use installbsd from OSF since it installs stuff as root
        # by default.
        for ac_prog in ginstall scoinst install; do
          for ac_exec_ext in '' $ac_executable_extensions; do
    	if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then
    	  if test $ac_prog = install &&
    	    grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
    	    # AIX install.  It has an incompatible calling convention.
    	    :
    	  elif test $ac_prog = install &&
    	    grep pwplus "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
    	    # program-specific install script used by HP pwplus--don't use.
    	    :
    	  else
    	    rm -rf conftest.one conftest.two conftest.dir
    	    echo one > conftest.one
    	    echo two > conftest.two
    	    mkdir conftest.dir
    	    if "$as_dir$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir/" &&
    	      test -s conftest.one && test -s conftest.two &&
    	      test -s conftest.dir/conftest.one &&
    	      test -s conftest.dir/conftest.two
    	    then
    	      ac_cv_path_install="$as_dir$ac_prog$ac_exec_ext -c"
    	      break 3
    	    fi
    	  fi
    	fi
          done
        done
        ;;
    esac
    
      done
    IFS=$as_save_IFS
    
    rm -rf conftest.one conftest.two conftest.dir
     ;;
    esac
    fi
      if test ${ac_cv_path_install+y}; then
        INSTALL=$ac_cv_path_install
      else
        # As a last resort, use the slow shell script.  Don't cache a
        # value for INSTALL within a source directory, because that will
        # break other packages using the cache if that directory is
        # removed, or if the value is a relative name.
        INSTALL=$ac_install_sh
      fi
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
    printf "%s\n" "$INSTALL" >&6; }
    
    # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
    # It thinks the first close brace ends the variable substitution.
    test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
    
    test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
    
    test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether sleep supports fractional seconds" >&5
    printf %s "checking whether sleep supports fractional seconds... " >&6; }
    if test ${am_cv_sleep_fractional_seconds+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if sleep 0.001 2>/dev/null
    then :
      am_cv_sleep_fractional_seconds=yes
    else case e in #(
      e) am_cv_sleep_fractional_seconds=no ;;
    esac
    fi
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_sleep_fractional_seconds" >&5
    printf "%s\n" "$am_cv_sleep_fractional_seconds" >&6; }
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking filesystem timestamp resolution" >&5
    printf %s "checking filesystem timestamp resolution... " >&6; }
    if test ${am_cv_filesystem_timestamp_resolution+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) # Default to the worst case.
    am_cv_filesystem_timestamp_resolution=2
    
    # Only try to go finer than 1 sec if sleep can do it.
    # Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
    # - 1 sec is not much of a win compared to 2 sec, and
    # - it takes 2 seconds to perform the test whether 1 sec works.
    #
    # Instead, just use the default 2s on platforms that have 1s resolution,
    # accept the extra 1s delay when using $sleep in the Automake tests, in
    # exchange for not incurring the 2s delay for running the test for all
    # packages.
    #
    am_try_resolutions=
    if test "$am_cv_sleep_fractional_seconds" = yes; then
      # Even a millisecond often causes a bunch of false positives,
      # so just try a hundredth of a second. The time saved between .001 and
      # .01 is not terribly consequential.
      am_try_resolutions="0.01 0.1 $am_try_resolutions"
    fi
    
    # In order to catch current-generation FAT out, we must *modify* files
    # that already exist; the *creation* timestamp is finer.  Use names
    # that make ls -t sort them differently when they have equal
    # timestamps than when they have distinct timestamps, keeping
    # in mind that ls -t prints the *newest* file first.
    rm -f conftest.ts?
    : > conftest.ts1
    : > conftest.ts2
    : > conftest.ts3
    
    # Make sure ls -t actually works.  Do 'set' in a subshell so we don't
    # clobber the current shell's arguments. (Outer-level square brackets
    # are removed by m4; they're present so that m4 does not expand
    # <dollar><star>; be careful, easy to get confused.)
    if (
         set X `ls -t conftest.ts[12]` &&
         {
           test "$*" != "X conftest.ts1 conftest.ts2" ||
           test "$*" != "X conftest.ts2 conftest.ts1";
         }
    ); then :; else
      # If neither matched, then we have a broken ls.  This can happen
      # if, for instance, CONFIG_SHELL is bash and it inherits a
      # broken ls alias from the environment.  This has actually
      # happened.  Such a system could not be considered "sane".
      printf "%s\n" ""Bad output from ls -t: \"`ls -t conftest.ts[12]`\""" >&5
      { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "ls -t produces unexpected output.
    Make sure there is not a broken ls alias in your environment.
    See 'config.log' for more details" "$LINENO" 5; }
    fi
    
    for am_try_res in $am_try_resolutions; do
      # Any one fine-grained sleep might happen to cross the boundary
      # between two values of a coarser actual resolution, but if we do
      # two fine-grained sleeps in a row, at least one of them will fall
      # entirely within a coarse interval.
      echo alpha > conftest.ts1
      sleep $am_try_res
      echo beta > conftest.ts2
      sleep $am_try_res
      echo gamma > conftest.ts3
    
      # We assume that 'ls -t' will make use of high-resolution
      # timestamps if the operating system supports them at all.
      if (set X `ls -t conftest.ts?` &&
          test "$2" = conftest.ts3 &&
          test "$3" = conftest.ts2 &&
          test "$4" = conftest.ts1); then
        #
        # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
        # because we don't need to test make.
        make_ok=true
        if test $am_try_res != 1; then
          # But if we've succeeded so far with a subsecond resolution, we
          # have one more thing to check: make. It can happen that
          # everything else supports the subsecond mtimes, but make doesn't;
          # notably on macOS, which ships make 3.81 from 2006 (the last one
          # released under GPLv2). https://bugs.gnu.org/68808
          #
          # We test $MAKE if it is defined in the environment, else "make".
          # It might get overridden later, but our hope is that in practice
          # it does not matter: it is the system "make" which is (by far)
          # the most likely to be broken, whereas if the user overrides it,
          # probably they did so with a better, or at least not worse, make.
          # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
          #
          # Create a Makefile (real tab character here):
          rm -f conftest.mk
          echo 'conftest.ts1: conftest.ts2' >conftest.mk
          echo '	touch conftest.ts2' >>conftest.mk
          #
          # Now, running
          #   touch conftest.ts1; touch conftest.ts2; make
          # should touch ts1 because ts2 is newer. This could happen by luck,
          # but most often, it will fail if make's support is insufficient. So
          # test for several consecutive successes.
          #
          # (We reuse conftest.ts[12] because we still want to modify existing
          # files, not create new ones, per above.)
          n=0
          make=${MAKE-make}
          until test $n -eq 3; do
            echo one > conftest.ts1
            sleep $am_try_res
            echo two > conftest.ts2 # ts2 should now be newer than ts1
            if $make -f conftest.mk | grep 'up to date' >/dev/null; then
              make_ok=false
              break # out of $n loop
            fi
            n=`expr $n + 1`
          done
        fi
        #
        if $make_ok; then
          # Everything we know to check worked out, so call this resolution good.
          am_cv_filesystem_timestamp_resolution=$am_try_res
          break # out of $am_try_res loop
        fi
        # Otherwise, we'll go on to check the next resolution.
      fi
    done
    rm -f conftest.ts?
    # (end _am_filesystem_timestamp_resolution)
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_filesystem_timestamp_resolution" >&5
    printf "%s\n" "$am_cv_filesystem_timestamp_resolution" >&6; }
    
    # This check should not be cached, as it may vary across builds of
    # different projects.
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
    printf %s "checking whether build environment is sane... " >&6; }
    # Reject unsafe characters in $srcdir or the absolute working directory
    # name.  Accept space and tab only in the latter.
    am_lf='
    '
    case `pwd` in
      *[\\\"\#\$\&\'\`$am_lf]*)
        as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
    esac
    case $srcdir in
      *[\\\"\#\$\&\'\`$am_lf\ \	]*)
        as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
    esac
    
    # Do 'set' in a subshell so we don't clobber the current shell's
    # arguments.  Must try -L first in case configure is actually a
    # symlink; some systems play weird games with the mod time of symlinks
    # (eg FreeBSD returns the mod time of the symlink's containing
    # directory).
    am_build_env_is_sane=no
    am_has_slept=no
    rm -f conftest.file
    for am_try in 1 2; do
      echo "timestamp, slept: $am_has_slept" > conftest.file
      if (
        set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
        if test "$*" = "X"; then
          # -L didn't work.
          set X `ls -t "$srcdir/configure" conftest.file`
        fi
        test "$2" = conftest.file
      ); then
        am_build_env_is_sane=yes
        break
      fi
      # Just in case.
      sleep "$am_cv_filesystem_timestamp_resolution"
      am_has_slept=yes
    done
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_build_env_is_sane" >&5
    printf "%s\n" "$am_build_env_is_sane" >&6; }
    if test "$am_build_env_is_sane" = no; then
      as_fn_error $? "newly created file is older than distributed files!
    Check your system clock" "$LINENO" 5
    fi
    
    # If we didn't sleep, we still need to ensure time stamps of config.status and
    # generated files are strictly newer.
    am_sleep_pid=
    if test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1
    then :
    
    else case e in #(
      e)   ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
      am_sleep_pid=$!
     ;;
    esac
    fi
    
    rm -f conftest.file
    
    test "$program_prefix" != NONE &&
      program_transform_name="s&^&$program_prefix&;$program_transform_name"
    # Use a double $ so make ignores it.
    test "$program_suffix" != NONE &&
      program_transform_name="s&\$&$program_suffix&;$program_transform_name"
    # Double any \ or $.
    # By default was 's,x,x', remove it if useless.
    ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
    program_transform_name=`printf "%s\n" "$program_transform_name" | sed "$ac_script"`
    
    
    # Expand $ac_aux_dir to an absolute path.
    am_aux_dir=`cd "$ac_aux_dir" && pwd`
    
    
      if test x"${MISSING+set}" != xset; then
      MISSING="\${SHELL} '$am_aux_dir/missing'"
    fi
    # Use eval to expand $SHELL
    if eval "$MISSING --is-lightweight"; then
      am_missing_run="$MISSING "
    else
      am_missing_run=
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
    printf "%s\n" "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
    fi
    
    if test x"${install_sh+set}" != xset; then
      case $am_aux_dir in
      *\ * | *\	*)
        install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
      *)
        install_sh="\${SHELL} $am_aux_dir/install-sh"
      esac
    fi
    
    # Installed binaries are usually stripped using 'strip' when the user
    # run "make install-strip".  However 'strip' might not be the right
    # tool to use in cross-compilation environments, therefore Automake
    # will honor the 'STRIP' environment variable to overrule this program.
    if test "$cross_compiling" != no; then
      if test -n "$ac_tool_prefix"; then
      # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
    set dummy ${ac_tool_prefix}strip; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_STRIP+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$STRIP"; then
      ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_STRIP="${ac_tool_prefix}strip"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    STRIP=$ac_cv_prog_STRIP
    if test -n "$STRIP"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
    printf "%s\n" "$STRIP" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
    fi
    if test -z "$ac_cv_prog_STRIP"; then
      ac_ct_STRIP=$STRIP
      # Extract the first word of "strip", so it can be a program name with args.
    set dummy strip; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_ac_ct_STRIP+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$ac_ct_STRIP"; then
      ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_ac_ct_STRIP="strip"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
    if test -n "$ac_ct_STRIP"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
    printf "%s\n" "$ac_ct_STRIP" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
      if test "x$ac_ct_STRIP" = x; then
        STRIP=":"
      else
        case $cross_compiling:$ac_tool_warned in
    yes:)
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
    printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
    ac_tool_warned=yes ;;
    esac
        STRIP=$ac_ct_STRIP
      fi
    else
      STRIP="$ac_cv_prog_STRIP"
    fi
    
    fi
    INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
    
    
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a race-free mkdir -p" >&5
    printf %s "checking for a race-free mkdir -p... " >&6; }
    if test -z "$MKDIR_P"; then
      if test ${ac_cv_path_mkdir+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_prog in mkdir gmkdir; do
    	 for ac_exec_ext in '' $ac_executable_extensions; do
    	   as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext" || continue
    	   case `"$as_dir$ac_prog$ac_exec_ext" --version 2>&1` in #(
    	     'mkdir ('*'coreutils) '* | \
    	     *'BusyBox '* | \
    	     'mkdir (fileutils) '4.1*)
    	       ac_cv_path_mkdir=$as_dir$ac_prog$ac_exec_ext
    	       break 3;;
    	   esac
    	 done
           done
      done
    IFS=$as_save_IFS
     ;;
    esac
    fi
    
      test -d ./--version && rmdir ./--version
      if test ${ac_cv_path_mkdir+y}; then
        MKDIR_P="$ac_cv_path_mkdir -p"
      else
        # As a last resort, use plain mkdir -p,
        # in the hope it doesn't have the bugs of ancient mkdir.
        MKDIR_P='mkdir -p'
      fi
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
    printf "%s\n" "$MKDIR_P" >&6; }
    
    for ac_prog in gawk mawk nawk awk
    do
      # Extract the first word of "$ac_prog", so it can be a program name with args.
    set dummy $ac_prog; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_AWK+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$AWK"; then
      ac_cv_prog_AWK="$AWK" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_AWK="$ac_prog"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    AWK=$ac_cv_prog_AWK
    if test -n "$AWK"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
    printf "%s\n" "$AWK" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
      test -n "$AWK" && break
    done
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
    printf %s "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
    set x ${MAKE-make}
    ac_make=`printf "%s\n" "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
    if eval test \${ac_cv_prog_make_${ac_make}_set+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) cat >conftest.make <<\_ACEOF
    SHELL = /bin/sh
    all:
    	@echo '@@@%%%=$(MAKE)=@@@%%%'
    _ACEOF
    # GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
    case `${MAKE-make} -f conftest.make 2>/dev/null` in
      *@@@%%%=?*=@@@%%%*)
        eval ac_cv_prog_make_${ac_make}_set=yes;;
      *)
        eval ac_cv_prog_make_${ac_make}_set=no;;
    esac
    rm -f conftest.make ;;
    esac
    fi
    if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
    printf "%s\n" "yes" >&6; }
      SET_MAKE=
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
      SET_MAKE="MAKE=${MAKE-make}"
    fi
    
    rm -rf .tst 2>/dev/null
    mkdir .tst 2>/dev/null
    if test -d .tst; then
      am__leading_dot=.
    else
      am__leading_dot=_
    fi
    rmdir .tst 2>/dev/null
    
    AM_DEFAULT_VERBOSITY=1
    # Check whether --enable-silent-rules was given.
    if test ${enable_silent_rules+y}
    then :
      enableval=$enable_silent_rules;
    fi
    
    am_make=${MAKE-make}
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
    printf %s "checking whether $am_make supports nested variables... " >&6; }
    if test ${am_cv_make_support_nested_variables+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if printf "%s\n" 'TRUE=$(BAR$(V))
    BAR0=false
    BAR1=true
    V=1
    am__doit:
    	@$(TRUE)
    .PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
      am_cv_make_support_nested_variables=yes
    else
      am_cv_make_support_nested_variables=no
    fi ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
    printf "%s\n" "$am_cv_make_support_nested_variables" >&6; }
    AM_BACKSLASH='\'
    
    am__rm_f_notfound=
    if (rm -f && rm -fr && rm -rf) 2>/dev/null
    then :
    
    else case e in #(
      e) am__rm_f_notfound='""' ;;
    esac
    fi
    
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking xargs -n works" >&5
    printf %s "checking xargs -n works... " >&6; }
    if test ${am_cv_xargs_n_works+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
    3"
    then :
      am_cv_xargs_n_works=yes
    else case e in #(
      e) am_cv_xargs_n_works=no ;;
    esac
    fi ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_xargs_n_works" >&5
    printf "%s\n" "$am_cv_xargs_n_works" >&6; }
    if test "$am_cv_xargs_n_works" = yes
    then :
      am__xargs_n='xargs -n'
    else case e in #(
      e)   am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "" "$am__xargs_n_arg"; done; }'
     ;;
    esac
    fi
    
    if test "`cd $srcdir && pwd`" != "`pwd`"; then
      # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
      # is not polluted with repeated "-I."
      am__isrc=' -I$(srcdir)'
      # test to see if srcdir already configured
      if test -f $srcdir/config.status; then
        as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
      fi
    fi
    
    # test whether we have cygpath
    if test -z "$CYGPATH_W"; then
      if (cygpath --version) >/dev/null 2>/dev/null; then
        CYGPATH_W='cygpath -w'
      else
        CYGPATH_W=echo
      fi
    fi
    
    
    # Define the identity of the package.
     PACKAGE='alps'
     VERSION='1.0'
    
    
    printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
    
    
    printf "%s\n" "#define VERSION \"$VERSION\"" >>confdefs.h
    
    # Some tools Automake needs.
    
    ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
    
    
    AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
    
    
    AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
    
    
    AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
    
    
    MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
    
    # For better backward compatibility.  To be removed once Automake 1.9.x
    # dies out for good.  For more background, see:
    # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
    # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
    mkdir_p='$(MKDIR_P)'
    
    # We need awk for the "check" target (and possibly the TAP driver).  The
    # system "awk" is bad on some platforms.
    # Always define AMTAR for backward compatibility.  Yes, it's still used
    # in the wild :-(  We should find a proper way to deprecate it ...
    AMTAR='$${TAR-tar}'
    
    
    # We'll loop over all known methods to create a tar archive until one works.
    _am_tools='gnutar  pax cpio none'
    
    am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
    
    
    
    
    
    # Variables for tags utilities; see am/tags.am
    if test -z "$CTAGS"; then
      CTAGS=ctags
    fi
    
    if test -z "$ETAGS"; then
      ETAGS=etags
    fi
    
    if test -z "$CSCOPE"; then
      CSCOPE=cscope
    fi
    
    
    
    
    
    
    
    ac_config_headers="$ac_config_headers config.h"
    
    
    # Optional: macro directory if using custom macros
    # AC_CONFIG_MACRO_DIR([m4])
    
    # Set default Fortran flags if not already set
    : ${FCFLAGS=""}
    
    # Checks for compilers
    
    
    
    
    
    
    
    
    
    ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    if test -n "$ac_tool_prefix"; then
      # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
    set dummy ${ac_tool_prefix}gcc; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$CC"; then
      ac_cv_prog_CC="$CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_CC="${ac_tool_prefix}gcc"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    CC=$ac_cv_prog_CC
    if test -n "$CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
    printf "%s\n" "$CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
    fi
    if test -z "$ac_cv_prog_CC"; then
      ac_ct_CC=$CC
      # Extract the first word of "gcc", so it can be a program name with args.
    set dummy gcc; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_ac_ct_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$ac_ct_CC"; then
      ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_ac_ct_CC="gcc"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    ac_ct_CC=$ac_cv_prog_ac_ct_CC
    if test -n "$ac_ct_CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
    printf "%s\n" "$ac_ct_CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
      if test "x$ac_ct_CC" = x; then
        CC=""
      else
        case $cross_compiling:$ac_tool_warned in
    yes:)
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
    printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
    ac_tool_warned=yes ;;
    esac
        CC=$ac_ct_CC
      fi
    else
      CC="$ac_cv_prog_CC"
    fi
    
    if test -z "$CC"; then
              if test -n "$ac_tool_prefix"; then
        # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
    set dummy ${ac_tool_prefix}cc; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$CC"; then
      ac_cv_prog_CC="$CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_CC="${ac_tool_prefix}cc"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    CC=$ac_cv_prog_CC
    if test -n "$CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
    printf "%s\n" "$CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
      fi
    fi
    if test -z "$CC"; then
      # Extract the first word of "cc", so it can be a program name with args.
    set dummy cc; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$CC"; then
      ac_cv_prog_CC="$CC" # Let the user override the test.
    else
      ac_prog_rejected=no
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
           ac_prog_rejected=yes
           continue
         fi
        ac_cv_prog_CC="cc"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    if test $ac_prog_rejected = yes; then
      # We found a bogon in the path, so make sure we never use it.
      set dummy $ac_cv_prog_CC
      shift
      if test $# != 0; then
        # We chose a different compiler from the bogus one.
        # However, it has the same basename, so the bogon will be chosen
        # first if we set CC to just the basename; use the full file name.
        shift
        ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
      fi
    fi
    fi ;;
    esac
    fi
    CC=$ac_cv_prog_CC
    if test -n "$CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
    printf "%s\n" "$CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
    fi
    if test -z "$CC"; then
      if test -n "$ac_tool_prefix"; then
      for ac_prog in cl.exe
      do
        # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
    set dummy $ac_tool_prefix$ac_prog; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$CC"; then
      ac_cv_prog_CC="$CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    CC=$ac_cv_prog_CC
    if test -n "$CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
    printf "%s\n" "$CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
        test -n "$CC" && break
      done
    fi
    if test -z "$CC"; then
      ac_ct_CC=$CC
      for ac_prog in cl.exe
    do
      # Extract the first word of "$ac_prog", so it can be a program name with args.
    set dummy $ac_prog; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_ac_ct_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$ac_ct_CC"; then
      ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_ac_ct_CC="$ac_prog"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    ac_ct_CC=$ac_cv_prog_ac_ct_CC
    if test -n "$ac_ct_CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
    printf "%s\n" "$ac_ct_CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
      test -n "$ac_ct_CC" && break
    done
    
      if test "x$ac_ct_CC" = x; then
        CC=""
      else
        case $cross_compiling:$ac_tool_warned in
    yes:)
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
    printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
    ac_tool_warned=yes ;;
    esac
        CC=$ac_ct_CC
      fi
    fi
    
    fi
    if test -z "$CC"; then
      if test -n "$ac_tool_prefix"; then
      # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
    set dummy ${ac_tool_prefix}clang; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$CC"; then
      ac_cv_prog_CC="$CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_CC="${ac_tool_prefix}clang"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    CC=$ac_cv_prog_CC
    if test -n "$CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
    printf "%s\n" "$CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
    fi
    if test -z "$ac_cv_prog_CC"; then
      ac_ct_CC=$CC
      # Extract the first word of "clang", so it can be a program name with args.
    set dummy clang; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_ac_ct_CC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$ac_ct_CC"; then
      ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_ac_ct_CC="clang"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    ac_ct_CC=$ac_cv_prog_ac_ct_CC
    if test -n "$ac_ct_CC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
    printf "%s\n" "$ac_ct_CC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
      if test "x$ac_ct_CC" = x; then
        CC=""
      else
        case $cross_compiling:$ac_tool_warned in
    yes:)
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
    printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
    ac_tool_warned=yes ;;
    esac
        CC=$ac_ct_CC
      fi
    else
      CC="$ac_cv_prog_CC"
    fi
    
    fi
    
    
    test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "no acceptable C compiler found in \$PATH
    See 'config.log' for more details" "$LINENO" 5; }
    
    # Provide some information about the compiler.
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
    set X $ac_compile
    ac_compiler=$2
    for ac_option in --version -v -V -qversion -version; do
      { { ac_try="$ac_compiler $ac_option >&5"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_compiler $ac_option >&5") 2>conftest.err
      ac_status=$?
      if test -s conftest.err; then
        sed '10a\
    ... rest of stderr output deleted ...
             10q' conftest.err >conftest.er1
        cat conftest.er1 >&5
      fi
      rm -f conftest.er1 conftest.err
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
    done
    
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
    ac_clean_files_save=$ac_clean_files
    ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
    # Try to create an executable without -o first, disregard a.out.
    # It will help us diagnose broken compilers, and finding out an intuition
    # of exeext.
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
    printf %s "checking whether the C compiler works... " >&6; }
    ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
    
    # The possible output files:
    ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
    
    ac_rmfiles=
    for ac_file in $ac_files
    do
      case $ac_file in
        *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
        * ) ac_rmfiles="$ac_rmfiles $ac_file";;
      esac
    done
    rm -f $ac_rmfiles
    
    if { { ac_try="$ac_link_default"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_link_default") 2>&5
      ac_status=$?
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
    then :
      # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
    # So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
    # in a Makefile.  We should not override ac_cv_exeext if it was cached,
    # so that the user can short-circuit this test for compilers unknown to
    # Autoconf.
    for ac_file in $ac_files ''
    do
      test -f "$ac_file" || continue
      case $ac_file in
        *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
    	;;
        [ab].out )
    	# We found the default executable, but exeext='' is most
    	# certainly right.
    	break;;
        *.* )
    	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
    	then :; else
    	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
    	fi
    	# We set ac_cv_exeext here because the later test for it is not
    	# safe: cross compilers may not add the suffix if given an '-o'
    	# argument, so we may need to know it at that point already.
    	# Even if this section looks crufty: it has the advantage of
    	# actually working.
    	break;;
        * )
    	break;;
      esac
    done
    test "$ac_cv_exeext" = no && ac_cv_exeext=
    
    else case e in #(
      e) ac_file='' ;;
    esac
    fi
    if test -z "$ac_file"
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    printf "%s\n" "$as_me: failed program was:" >&5
    sed 's/^/| /' conftest.$ac_ext >&5
    
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error 77 "C compiler cannot create executables
    See 'config.log' for more details" "$LINENO" 5; }
    else case e in #(
      e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
    printf "%s\n" "yes" >&6; } ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
    printf %s "checking for C compiler default output file name... " >&6; }
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
    printf "%s\n" "$ac_file" >&6; }
    ac_exeext=$ac_cv_exeext
    
    rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
    ac_clean_files=$ac_clean_files_save
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
    printf %s "checking for suffix of executables... " >&6; }
    if { { ac_try="$ac_link"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_link") 2>&5
      ac_status=$?
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
    then :
      # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
    # catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
    # work properly (i.e., refer to 'conftest.exe'), while it won't with
    # 'rm'.
    for ac_file in conftest.exe conftest conftest.*; do
      test -f "$ac_file" || continue
      case $ac_file in
        *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
        *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
    	  break;;
        * ) break;;
      esac
    done
    else case e in #(
      e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "cannot compute suffix of executables: cannot compile and link
    See 'config.log' for more details" "$LINENO" 5; } ;;
    esac
    fi
    rm -f conftest conftest$ac_cv_exeext
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
    printf "%s\n" "$ac_cv_exeext" >&6; }
    
    rm -f conftest.$ac_ext
    EXEEXT=$ac_cv_exeext
    ac_exeext=$EXEEXT
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    #include <stdio.h>
    int
    main (void)
    {
    FILE *f = fopen ("conftest.out", "w");
     if (!f)
      return 1;
     return ferror (f) || fclose (f) != 0;
    
      ;
      return 0;
    }
    _ACEOF
    ac_clean_files="$ac_clean_files conftest.out"
    # Check that the compiler produces executables we can run.  If not, either
    # the compiler is broken, or we cross compile.
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
    printf %s "checking whether we are cross compiling... " >&6; }
    if test "$cross_compiling" != yes; then
      { { ac_try="$ac_link"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_link") 2>&5
      ac_status=$?
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
      if { ac_try='./conftest$ac_cv_exeext'
      { { case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_try") 2>&5
      ac_status=$?
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }; }; then
        cross_compiling=no
      else
        if test "$cross_compiling" = maybe; then
    	cross_compiling=yes
        else
    	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error 77 "cannot run C compiled programs.
    If you meant to cross compile, use '--host'.
    See 'config.log' for more details" "$LINENO" 5; }
        fi
      fi
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
    printf "%s\n" "$cross_compiling" >&6; }
    
    rm -f conftest.$ac_ext conftest$ac_cv_exeext \
      conftest.o conftest.obj conftest.out
    ac_clean_files=$ac_clean_files_save
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
    printf %s "checking for suffix of object files... " >&6; }
    if test ${ac_cv_objext+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
    rm -f conftest.o conftest.obj
    if { { ac_try="$ac_compile"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_compile") 2>&5
      ac_status=$?
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
    then :
      for ac_file in conftest.o conftest.obj conftest.*; do
      test -f "$ac_file" || continue;
      case $ac_file in
        *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
        *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
           break;;
      esac
    done
    else case e in #(
      e) printf "%s\n" "$as_me: failed program was:" >&5
    sed 's/^/| /' conftest.$ac_ext >&5
    
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "cannot compute suffix of object files: cannot compile
    See 'config.log' for more details" "$LINENO" 5; } ;;
    esac
    fi
    rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
    printf "%s\n" "$ac_cv_objext" >&6; }
    OBJEXT=$ac_cv_objext
    ac_objext=$OBJEXT
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
    printf %s "checking whether the compiler supports GNU C... " >&6; }
    if test ${ac_cv_c_compiler_gnu+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    #ifndef __GNUC__
           choke me
    #endif
    
      ;
      return 0;
    }
    _ACEOF
    if ac_fn_c_try_compile "$LINENO"
    then :
      ac_compiler_gnu=yes
    else case e in #(
      e) ac_compiler_gnu=no ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    ac_cv_c_compiler_gnu=$ac_compiler_gnu
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
    printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    
    if test $ac_compiler_gnu = yes; then
      GCC=yes
    else
      GCC=
    fi
    ac_test_CFLAGS=${CFLAGS+y}
    ac_save_CFLAGS=$CFLAGS
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
    printf %s "checking whether $CC accepts -g... " >&6; }
    if test ${ac_cv_prog_cc_g+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) ac_save_c_werror_flag=$ac_c_werror_flag
       ac_c_werror_flag=yes
       ac_cv_prog_cc_g=no
       CFLAGS="-g"
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
    if ac_fn_c_try_compile "$LINENO"
    then :
      ac_cv_prog_cc_g=yes
    else case e in #(
      e) CFLAGS=""
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
    if ac_fn_c_try_compile "$LINENO"
    then :
    
    else case e in #(
      e) ac_c_werror_flag=$ac_save_c_werror_flag
    	 CFLAGS="-g"
    	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
    if ac_fn_c_try_compile "$LINENO"
    then :
      ac_cv_prog_cc_g=yes
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
       ac_c_werror_flag=$ac_save_c_werror_flag ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
    printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
    if test $ac_test_CFLAGS; then
      CFLAGS=$ac_save_CFLAGS
    elif test $ac_cv_prog_cc_g = yes; then
      if test "$GCC" = yes; then
        CFLAGS="-g -O2"
      else
        CFLAGS="-g"
      fi
    else
      if test "$GCC" = yes; then
        CFLAGS="-O2"
      else
        CFLAGS=
      fi
    fi
    ac_prog_cc_stdc=no
    if test x$ac_prog_cc_stdc = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
    printf %s "checking for $CC option to enable C11 features... " >&6; }
    if test ${ac_cv_prog_cc_c11+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) ac_cv_prog_cc_c11=no
    ac_save_CC=$CC
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    $ac_c_conftest_c11_program
    _ACEOF
    for ac_arg in '' -std=gnu11
    do
      CC="$ac_save_CC $ac_arg"
      if ac_fn_c_try_compile "$LINENO"
    then :
      ac_cv_prog_cc_c11=$ac_arg
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam
      test "x$ac_cv_prog_cc_c11" != "xno" && break
    done
    rm -f conftest.$ac_ext
    CC=$ac_save_CC ;;
    esac
    fi
    
    if test "x$ac_cv_prog_cc_c11" = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
    printf "%s\n" "unsupported" >&6; }
    else case e in #(
      e) if test "x$ac_cv_prog_cc_c11" = x
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
    printf "%s\n" "none needed" >&6; }
    else case e in #(
      e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
    printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
         CC="$CC $ac_cv_prog_cc_c11" ;;
    esac
    fi
      ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
      ac_prog_cc_stdc=c11 ;;
    esac
    fi
    fi
    if test x$ac_prog_cc_stdc = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
    printf %s "checking for $CC option to enable C99 features... " >&6; }
    if test ${ac_cv_prog_cc_c99+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) ac_cv_prog_cc_c99=no
    ac_save_CC=$CC
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    $ac_c_conftest_c99_program
    _ACEOF
    for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
    do
      CC="$ac_save_CC $ac_arg"
      if ac_fn_c_try_compile "$LINENO"
    then :
      ac_cv_prog_cc_c99=$ac_arg
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam
      test "x$ac_cv_prog_cc_c99" != "xno" && break
    done
    rm -f conftest.$ac_ext
    CC=$ac_save_CC ;;
    esac
    fi
    
    if test "x$ac_cv_prog_cc_c99" = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
    printf "%s\n" "unsupported" >&6; }
    else case e in #(
      e) if test "x$ac_cv_prog_cc_c99" = x
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
    printf "%s\n" "none needed" >&6; }
    else case e in #(
      e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
    printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
         CC="$CC $ac_cv_prog_cc_c99" ;;
    esac
    fi
      ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
      ac_prog_cc_stdc=c99 ;;
    esac
    fi
    fi
    if test x$ac_prog_cc_stdc = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
    printf %s "checking for $CC option to enable C89 features... " >&6; }
    if test ${ac_cv_prog_cc_c89+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) ac_cv_prog_cc_c89=no
    ac_save_CC=$CC
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    $ac_c_conftest_c89_program
    _ACEOF
    for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
    do
      CC="$ac_save_CC $ac_arg"
      if ac_fn_c_try_compile "$LINENO"
    then :
      ac_cv_prog_cc_c89=$ac_arg
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam
      test "x$ac_cv_prog_cc_c89" != "xno" && break
    done
    rm -f conftest.$ac_ext
    CC=$ac_save_CC ;;
    esac
    fi
    
    if test "x$ac_cv_prog_cc_c89" = xno
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
    printf "%s\n" "unsupported" >&6; }
    else case e in #(
      e) if test "x$ac_cv_prog_cc_c89" = x
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
    printf "%s\n" "none needed" >&6; }
    else case e in #(
      e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
    printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
         CC="$CC $ac_cv_prog_cc_c89" ;;
    esac
    fi
      ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
      ac_prog_cc_stdc=c89 ;;
    esac
    fi
    fi
    
    ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    
    
      ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
    printf %s "checking whether $CC understands -c and -o together... " >&6; }
    if test ${am_cv_prog_cc_c_o+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
    /* end confdefs.h.  */
    
    int
    main (void)
    {
    
      ;
      return 0;
    }
    _ACEOF
      # Make sure it works both with $CC and with simple cc.
      # Following AC_PROG_CC_C_O, we do the test twice because some
      # compilers refuse to overwrite an existing .o file with -o,
      # though they will create one.
      am_cv_prog_cc_c_o=yes
      for am_i in 1 2; do
        if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
       ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
       ac_status=$?
       echo "$as_me:$LINENO: \$? = $ac_status" >&5
       (exit $ac_status); } \
             && test -f conftest2.$ac_objext; then
          : OK
        else
          am_cv_prog_cc_c_o=no
          break
        fi
      done
      rm -f core conftest*
      unset am_i ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
    printf "%s\n" "$am_cv_prog_cc_c_o" >&6; }
    if test "$am_cv_prog_cc_c_o" != yes; then
       # Losing compiler, so override with the script.
       # FIXME: It is wrong to rewrite CC.
       # But if we don't then we get into trouble of one sort or another.
       # A longer-term fix would be to have automake use am__CC in this case,
       # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
       CC="$am_aux_dir/compile $CC"
    fi
    ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    
    DEPDIR="${am__leading_dot}deps"
    
    ac_config_commands="$ac_config_commands depfiles"
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
    printf %s "checking whether ${MAKE-make} supports the include directive... " >&6; }
    cat > confinc.mk << 'END'
    am__doit:
    	@echo this is the am__doit target >confinc.out
    .PHONY: am__doit
    END
    am__include="#"
    am__quote=
    # BSD make does it like this.
    echo '.include "confinc.mk" # ignored' > confmf.BSD
    # Other make implementations (GNU, Solaris 10, AIX) do it like this.
    echo 'include confinc.mk # ignored' > confmf.GNU
    _am_result=no
    for s in GNU BSD; do
      { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
       (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
       ac_status=$?
       echo "$as_me:$LINENO: \$? = $ac_status" >&5
       (exit $ac_status); }
      case $?:`cat confinc.out 2>/dev/null` in #(
      '0:this is the am__doit target') :
        case $s in #(
      BSD) :
        am__include='.include' am__quote='"' ;; #(
      *) :
        am__include='include' am__quote='' ;;
    esac ;; #(
      *) :
         ;;
    esac
      if test "$am__include" != "#"; then
        _am_result="yes ($s style)"
        break
      fi
    done
    rm -f confinc.* confmf.*
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
    printf "%s\n" "${_am_result}" >&6; }
    
    # Check whether --enable-dependency-tracking was given.
    if test ${enable_dependency_tracking+y}
    then :
      enableval=$enable_dependency_tracking;
    fi
    
    if test "x$enable_dependency_tracking" != xno; then
      am_depcomp="$ac_aux_dir/depcomp"
      AMDEPBACKSLASH='\'
      am__nodep='_no'
    fi
     if test "x$enable_dependency_tracking" != xno; then
      AMDEP_TRUE=
      AMDEP_FALSE='#'
    else
      AMDEP_TRUE='#'
      AMDEP_FALSE=
    fi
    
    
    
    depcc="$CC"   am_compiler_list=
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
    printf %s "checking dependency style of $depcc... " >&6; }
    if test ${am_cv_CC_dependencies_compiler_type+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
      # We make a subdir and do the tests there.  Otherwise we can end up
      # making bogus files that we don't know about and never remove.  For
      # instance it was reported that on HP-UX the gcc test will end up
      # making a dummy file named 'D' -- because '-MD' means "put the output
      # in D".
      rm -rf conftest.dir
      mkdir conftest.dir
      # Copy depcomp to subdir because otherwise we won't find it if we're
      # using a relative directory.
      cp "$am_depcomp" conftest.dir
      cd conftest.dir
      # We will build objects and dependencies in a subdirectory because
      # it helps to detect inapplicable dependency modes.  For instance
      # both Tru64's cc and ICC support -MD to output dependencies as a
      # side effect of compilation, but ICC will put the dependencies in
      # the current directory while Tru64 will put them in the object
      # directory.
      mkdir sub
    
      am_cv_CC_dependencies_compiler_type=none
      if test "$am_compiler_list" = ""; then
         am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
      fi
      am__universal=false
      case " $depcc " in #(
         *\ -arch\ *\ -arch\ *) am__universal=true ;;
         esac
    
      for depmode in $am_compiler_list; do
        # Setup a source with many dependencies, because some compilers
        # like to wrap large dependency lists on column 80 (with \), and
        # we should not choose a depcomp mode which is confused by this.
        #
        # We need to recreate these files for each test, as the compiler may
        # overwrite some of them when testing with obscure command lines.
        # This happens at least with the AIX C compiler.
        : > sub/conftest.c
        for i in 1 2 3 4 5 6; do
          echo '#include "conftst'$i'.h"' >> sub/conftest.c
          # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
          # Solaris 10 /bin/sh.
          echo '/* dummy */' > sub/conftst$i.h
        done
        echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
    
        # We check with '-c' and '-o' for the sake of the "dashmstdout"
        # mode.  It turns out that the SunPro C++ compiler does not properly
        # handle '-M -o', and we need to detect this.  Also, some Intel
        # versions had trouble with output in subdirs.
        am__obj=sub/conftest.${OBJEXT-o}
        am__minus_obj="-o $am__obj"
        case $depmode in
        gcc)
          # This depmode causes a compiler race in universal mode.
          test "$am__universal" = false || continue
          ;;
        nosideeffect)
          # After this tag, mechanisms are not by side-effect, so they'll
          # only be used when explicitly requested.
          if test "x$enable_dependency_tracking" = xyes; then
    	continue
          else
    	break
          fi
          ;;
        msvc7 | msvc7msys | msvisualcpp | msvcmsys)
          # This compiler won't grok '-c -o', but also, the minuso test has
          # not run yet.  These depmodes are late enough in the game, and
          # so weak that their functioning should not be impacted.
          am__obj=conftest.${OBJEXT-o}
          am__minus_obj=
          ;;
        none) break ;;
        esac
        if depmode=$depmode \
           source=sub/conftest.c object=$am__obj \
           depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
           $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
             >/dev/null 2>conftest.err &&
           grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
           grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
           grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
           ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
          # icc doesn't choke on unknown options, it will just issue warnings
          # or remarks (even with -Werror).  So we grep stderr for any message
          # that says an option was ignored or not supported.
          # When given -MP, icc 7.0 and 7.1 complain thus:
          #   icc: Command line warning: ignoring option '-M'; no argument required
          # The diagnosis changed in icc 8.0:
          #   icc: Command line remark: option '-MP' not supported
          if (grep 'ignoring option' conftest.err ||
              grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
            am_cv_CC_dependencies_compiler_type=$depmode
            break
          fi
        fi
      done
    
      cd ..
      rm -rf conftest.dir
    else
      am_cv_CC_dependencies_compiler_type=none
    fi
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
    printf "%s\n" "$am_cv_CC_dependencies_compiler_type" >&6; }
    CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
    
     if
      test "x$enable_dependency_tracking" != xno \
      && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
      am__fastdepCC_TRUE=
      am__fastdepCC_FALSE='#'
    else
      am__fastdepCC_TRUE='#'
      am__fastdepCC_FALSE=
    fi
    
    
    ac_ext=${ac_fc_srcext-f}
    ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
    ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_fc_compiler_gnu
    if test -n "$ac_tool_prefix"; then
      for ac_prog in mpifort mpif90 f90 fort gfortran
      do
        # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
    set dummy $ac_tool_prefix$ac_prog; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_FC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$FC"; then
      ac_cv_prog_FC="$FC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_FC="$ac_tool_prefix$ac_prog"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    FC=$ac_cv_prog_FC
    if test -n "$FC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $FC" >&5
    printf "%s\n" "$FC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
        test -n "$FC" && break
      done
    fi
    if test -z "$FC"; then
      ac_ct_FC=$FC
      for ac_prog in mpifort mpif90 f90 fort gfortran
    do
      # Extract the first word of "$ac_prog", so it can be a program name with args.
    set dummy $ac_prog; ac_word=$2
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
    printf %s "checking for $ac_word... " >&6; }
    if test ${ac_cv_prog_ac_ct_FC+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) if test -n "$ac_ct_FC"; then
      ac_cv_prog_ac_ct_FC="$ac_ct_FC" # Let the user override the test.
    else
    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        for ac_exec_ext in '' $ac_executable_extensions; do
      if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
        ac_cv_prog_ac_ct_FC="$ac_prog"
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
        break 2
      fi
    done
      done
    IFS=$as_save_IFS
    
    fi ;;
    esac
    fi
    ac_ct_FC=$ac_cv_prog_ac_ct_FC
    if test -n "$ac_ct_FC"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_FC" >&5
    printf "%s\n" "$ac_ct_FC" >&6; }
    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
    printf "%s\n" "no" >&6; }
    fi
    
    
      test -n "$ac_ct_FC" && break
    done
    
      if test "x$ac_ct_FC" = x; then
        FC=""
      else
        case $cross_compiling:$ac_tool_warned in
    yes:)
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
    printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
    ac_tool_warned=yes ;;
    esac
        FC=$ac_ct_FC
      fi
    fi
    
    
    # Provide some information about the compiler.
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Fortran compiler version" >&5
    set X $ac_compile
    ac_compiler=$2
    for ac_option in --version -v -V -qversion; do
      { { ac_try="$ac_compiler $ac_option >&5"
    case "(($ac_try" in
      *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
      *) ac_try_echo=$ac_try;;
    esac
    eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
    printf "%s\n" "$ac_try_echo"; } >&5
      (eval "$ac_compiler $ac_option >&5") 2>conftest.err
      ac_status=$?
      if test -s conftest.err; then
        sed '10a\
    ... rest of stderr output deleted ...
             10q' conftest.err >conftest.er1
        cat conftest.er1 >&5
      fi
      rm -f conftest.er1 conftest.err
      printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
      test $ac_status = 0; }
    done
    rm -f a.out
    
    # If we don't use '.F' as extension, the preprocessor is not run on the
    # input file.  (Note that this only needs to work for GNU compilers.)
    ac_save_ext=$ac_ext
    ac_ext=F
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU Fortran" >&5
    printf %s "checking whether the compiler supports GNU Fortran... " >&6; }
    if test ${ac_cv_fc_compiler_gnu+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) cat > conftest.$ac_ext <<_ACEOF
          program main
    #ifndef __GNUC__
           choke me
    #endif
    
          end
    _ACEOF
    if ac_fn_fc_try_compile "$LINENO"
    then :
      ac_compiler_gnu=yes
    else case e in #(
      e) ac_compiler_gnu=no ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    ac_cv_fc_compiler_gnu=$ac_compiler_gnu
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_fc_compiler_gnu" >&5
    printf "%s\n" "$ac_cv_fc_compiler_gnu" >&6; }
    ac_compiler_gnu=$ac_cv_fc_compiler_gnu
    
    ac_ext=$ac_save_ext
    ac_test_FCFLAGS=${FCFLAGS+y}
    ac_save_FCFLAGS=$FCFLAGS
    FCFLAGS=
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $FC accepts -g" >&5
    printf %s "checking whether $FC accepts -g... " >&6; }
    if test ${ac_cv_prog_fc_g+y}
    then :
      printf %s "(cached) " >&6
    else case e in #(
      e) FCFLAGS=-g
    cat > conftest.$ac_ext <<_ACEOF
          program main
    
          end
    _ACEOF
    if ac_fn_fc_try_compile "$LINENO"
    then :
      ac_cv_prog_fc_g=yes
    else case e in #(
      e) ac_cv_prog_fc_g=no ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     ;;
    esac
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_fc_g" >&5
    printf "%s\n" "$ac_cv_prog_fc_g" >&6; }
    if test $ac_test_FCFLAGS; then
      FCFLAGS=$ac_save_FCFLAGS
    elif test $ac_cv_prog_fc_g = yes; then
      if test "x$ac_cv_fc_compiler_gnu" = xyes; then
        FCFLAGS="-g -O2"
      else
        FCFLAGS="-g"
      fi
    else
      if test "x$ac_cv_fc_compiler_gnu" = xyes; then
        FCFLAGS="-O2"
      else
        FCFLAGS=
      fi
    fi
    
    if test $ac_compiler_gnu = yes; then
      GFC=yes
    else
      GFC=
    fi
    ac_ext=c
    ac_cpp='$CPP $CPPFLAGS'
    ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
    ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_c_compiler_gnu
    
    ac_ext=${ac_fc_srcext-f}
    ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
    ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
    ac_compiler_gnu=$ac_cv_fc_compiler_gnu
    
    
    # -----------------------
    # Optional: BLAS/LAPACK support
    # -----------------------
    
    
    # Check whether --with-blas was given.
    if test ${with_blas+y}
    then :
      withval=$with_blas; BLAS_LIBS="$withval"
    else case e in #(
      e) BLAS_LIBS="-lblas"
     ;;
    esac
    fi
    
    
    
    # Check whether --with-lapack was given.
    if test ${with_lapack+y}
    then :
      withval=$with_lapack; LAPACK_LIBS="$withval"
    else case e in #(
      e) LAPACK_LIBS="-llapack"
     ;;
    esac
    fi
    
    
    # Basic linking test to ensure these libraries work
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for usable BLAS/LAPACK" >&5
    printf %s "checking for usable BLAS/LAPACK... " >&6; }
    SAVE_LIBS="$LIBS"
    LIBS="$LIBS $BLAS_LIBS $LAPACK_LIBS"
    
    cat > conftest.$ac_ext <<_ACEOF
          program main
          call dgesv
          end
    _ACEOF
    if ac_fn_fc_try_link "$LINENO"
    then :
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
    printf "%s\n" "yes" >&6; }
    else case e in #(
      e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "Could not link with specified BLAS/LAPACK libraries
    See 'config.log' for more details" "$LINENO" 5; }
     ;;
    esac
    fi
    rm -f core conftest.err conftest.$ac_objext conftest.beam \
        conftest$ac_exeext conftest.$ac_ext
    LIBS="$SAVE_LIBS"
    
    
    
    
    # -----------------------
    # Optional: HDF5 support (commented out)
    # -----------------------
    # AC_ARG_WITH([hdf5],
    #     [AS_HELP_STRING([--with-hdf5=DIR], [Specify path to HDF5 installation])],
    #     [WITH_HDF5=yes; HDF5PATH="$withval"],
    #     [WITH_HDF5=no])
    # AM_CONDITIONAL([WITH_HDF5], [test "x$WITH_HDF5" = "xyes"])
    
    # Example: Check for h5open_f in hdf5_fortran
    # if test "x$WITH_HDF5" = "xyes"; then
    #     AC_CHECK_LIB([hdf5_fortran], [h5open_f], [], [
    #         AC_MSG_ERROR([HDF5 library not found or unusable])
    #     ])
    # fi
    
    # -----------------------
    # Output files
    # -----------------------
    ac_config_files="$ac_config_files Makefile src/Makefile interpolation/Makefile distribution/Makefile"
    
    cat >confcache <<\_ACEOF
    # This file is a shell script that caches the results of configure
    # tests run on this system so they can be shared between configure
    # scripts and configure runs, see configure's option --config-cache.
    # It is not useful on other systems.  If it contains results you don't
    # want to keep, you may remove or edit it.
    #
    # config.status only pays attention to the cache file if you give it
    # the --recheck option to rerun configure.
    #
    # 'ac_cv_env_foo' variables (set or unset) will be overridden when
    # loading this file, other *unset* 'ac_cv_foo' will be assigned the
    # following values.
    
    _ACEOF
    
    # The following way of writing the cache mishandles newlines in values,
    # but we know of no workaround that is simple, portable, and efficient.
    # So, we kill variables containing newlines.
    # Ultrix sh set writes to stderr and can't be redirected directly,
    # and sets the high bit in the cache file unless we assign to the vars.
    (
      for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
        eval ac_val=\$$ac_var
        case $ac_val in #(
        *${as_nl}*)
          case $ac_var in #(
          *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
    printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
          esac
          case $ac_var in #(
          _ | IFS | as_nl) ;; #(
          BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
          *) { eval $ac_var=; unset $ac_var;} ;;
          esac ;;
        esac
      done
    
      (set) 2>&1 |
        case $as_nl`(ac_space=' '; set) 2>&1` in #(
        *${as_nl}ac_space=\ *)
          # 'set' does not quote correctly, so add quotes: double-quote
          # substitution turns \\\\ into \\, and sed turns \\ into \.
          sed -n \
    	"s/'/'\\\\''/g;
    	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
          ;; #(
        *)
          # 'set' quotes correctly as required by POSIX, so do not add quotes.
          sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
          ;;
        esac |
        sort
    ) |
      sed '
         /^ac_cv_env_/b end
         t clear
         :clear
         s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
         t end
         s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
         :end' >>confcache
    if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
      if test -w "$cache_file"; then
        if test "x$cache_file" != "x/dev/null"; then
          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
    printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
          if test ! -f "$cache_file" || test -h "$cache_file"; then
    	cat confcache >"$cache_file"
          else
            case $cache_file in #(
            */* | ?:*)
    	  mv -f confcache "$cache_file"$$ &&
    	  mv -f "$cache_file"$$ "$cache_file" ;; #(
            *)
    	  mv -f confcache "$cache_file" ;;
    	esac
          fi
        fi
      else
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
    printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
      fi
    fi
    rm -f confcache
    
    test "x$prefix" = xNONE && prefix=$ac_default_prefix
    # Let make expand exec_prefix.
    test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
    
    DEFS=-DHAVE_CONFIG_H
    
    ac_libobjs=
    ac_ltlibobjs=
    U=
    for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
      # 1. Remove the extension, and $U if already installed.
      ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
      ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
      # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
      #    will be set to the directory where LIBOBJS objects are built.
      as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
      as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
    done
    LIBOBJS=$ac_libobjs
    
    LTLIBOBJS=$ac_ltlibobjs
    
    
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
    printf %s "checking that generated files are newer than configure... " >&6; }
       if test -n "$am_sleep_pid"; then
         # Hide warnings about reused PIDs.
         wait $am_sleep_pid 2>/dev/null
       fi
       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: done" >&5
    printf "%s\n" "done" >&6; }
    case $enable_silent_rules in # (((
      yes) AM_DEFAULT_VERBOSITY=0;;
       no) AM_DEFAULT_VERBOSITY=1;;
    esac
    if test $am_cv_make_support_nested_variables = yes; then
        AM_V='$(V)'
      AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
    else
      AM_V=$AM_DEFAULT_VERBOSITY
      AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
    fi
    
     if test -n "$EXEEXT"; then
      am__EXEEXT_TRUE=
      am__EXEEXT_FALSE='#'
    else
      am__EXEEXT_TRUE='#'
      am__EXEEXT_FALSE=
    fi
    
    if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
      as_fn_error $? "conditional \"AMDEP\" was never defined.
    Usually this means the macro was only invoked conditionally." "$LINENO" 5
    fi
    if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
      as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
    Usually this means the macro was only invoked conditionally." "$LINENO" 5
    fi
    
    : "${CONFIG_STATUS=./config.status}"
    ac_write_fail=0
    ac_clean_files_save=$ac_clean_files
    ac_clean_files="$ac_clean_files $CONFIG_STATUS"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
    printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
    as_write_fail=0
    cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
    #! $SHELL
    # Generated by $as_me.
    # Run this file to recreate the current configuration.
    # Compiler output produced by configure, useful for debugging
    # configure, is in config.log if it exists.
    
    debug=false
    ac_cs_recheck=false
    ac_cs_silent=false
    
    SHELL=\${CONFIG_SHELL-$SHELL}
    export SHELL
    _ASEOF
    cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
    ## -------------------- ##
    ## M4sh Initialization. ##
    ## -------------------- ##
    
    # Be more Bourne compatible
    DUALCASE=1; export DUALCASE # for MKS sh
    if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
    then :
      emulate sh
      NULLCMD=:
      # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
      # is contrary to our usage.  Disable this feature.
      alias -g '${1+"$@"}'='"$@"'
      setopt NO_GLOB_SUBST
    else case e in #(
      e) case `(set -o) 2>/dev/null` in #(
      *posix*) :
        set -o posix ;; #(
      *) :
         ;;
    esac ;;
    esac
    fi
    
    
    
    # Reset variables that may have inherited troublesome values from
    # the environment.
    
    # IFS needs to be set, to space, tab, and newline, in precisely that order.
    # (If _AS_PATH_WALK were called with IFS unset, it would have the
    # side effect of setting IFS to empty, thus disabling word splitting.)
    # Quoting is to prevent editors from complaining about space-tab.
    as_nl='
    '
    export as_nl
    IFS=" ""	$as_nl"
    
    PS1='$ '
    PS2='> '
    PS4='+ '
    
    # Ensure predictable behavior from utilities with locale-dependent output.
    LC_ALL=C
    export LC_ALL
    LANGUAGE=C
    export LANGUAGE
    
    # We cannot yet rely on "unset" to work, but we need these variables
    # to be unset--not just set to an empty or harmless value--now, to
    # avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
    # also avoids known problems related to "unset" and subshell syntax
    # in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
    for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
    do eval test \${$as_var+y} \
      && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
    done
    
    # Ensure that fds 0, 1, and 2 are open.
    if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
    if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
    if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
    
    # The user is always right.
    if ${PATH_SEPARATOR+false} :; then
      PATH_SEPARATOR=:
      (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
        (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
          PATH_SEPARATOR=';'
      }
    fi
    
    
    # Find who we are.  Look in the path if we contain no directory separator.
    as_myself=
    case $0 in #((
      *[\\/]* ) as_myself=$0 ;;
      *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
    for as_dir in $PATH
    do
      IFS=$as_save_IFS
      case $as_dir in #(((
        '') as_dir=./ ;;
        */) ;;
        *) as_dir=$as_dir/ ;;
      esac
        test -r "$as_dir$0" && as_myself=$as_dir$0 && break
      done
    IFS=$as_save_IFS
    
         ;;
    esac
    # We did not find ourselves, most probably we were run as 'sh COMMAND'
    # in which case we are not to be found in the path.
    if test "x$as_myself" = x; then
      as_myself=$0
    fi
    if test ! -f "$as_myself"; then
      printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
      exit 1
    fi
    
    
    
    # as_fn_error STATUS ERROR [LINENO LOG_FD]
    # ----------------------------------------
    # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
    # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
    # script with STATUS, using 1 if that was 0.
    as_fn_error ()
    {
      as_status=$1; test $as_status -eq 0 && as_status=1
      if test "$4"; then
        as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
        printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
      fi
      printf "%s\n" "$as_me: error: $2" >&2
      as_fn_exit $as_status
    } # as_fn_error
    
    
    # as_fn_set_status STATUS
    # -----------------------
    # Set $? to STATUS, without forking.
    as_fn_set_status ()
    {
      return $1
    } # as_fn_set_status
    
    # as_fn_exit STATUS
    # -----------------
    # Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
    as_fn_exit ()
    {
      set +e
      as_fn_set_status $1
      exit $1
    } # as_fn_exit
    
    # as_fn_unset VAR
    # ---------------
    # Portably unset VAR.
    as_fn_unset ()
    {
      { eval $1=; unset $1;}
    }
    as_unset=as_fn_unset
    
    # as_fn_append VAR VALUE
    # ----------------------
    # Append the text in VALUE to the end of the definition contained in VAR. Take
    # advantage of any shell optimizations that allow amortized linear growth over
    # repeated appends, instead of the typical quadratic growth present in naive
    # implementations.
    if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
    then :
      eval 'as_fn_append ()
      {
        eval $1+=\$2
      }'
    else case e in #(
      e) as_fn_append ()
      {
        eval $1=\$$1\$2
      } ;;
    esac
    fi # as_fn_append
    
    # as_fn_arith ARG...
    # ------------------
    # Perform arithmetic evaluation on the ARGs, and store the result in the
    # global $as_val. Take advantage of shells that can avoid forks. The arguments
    # must be portable across $(()) and expr.
    if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
    then :
      eval 'as_fn_arith ()
      {
        as_val=$(( $* ))
      }'
    else case e in #(
      e) as_fn_arith ()
      {
        as_val=`expr "$@" || test $? -eq 1`
      } ;;
    esac
    fi # as_fn_arith
    
    
    if expr a : '\(a\)' >/dev/null 2>&1 &&
       test "X`expr 00001 : '.*\(...\)'`" = X001; then
      as_expr=expr
    else
      as_expr=false
    fi
    
    if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
      as_basename=basename
    else
      as_basename=false
    fi
    
    if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
      as_dirname=dirname
    else
      as_dirname=false
    fi
    
    as_me=`$as_basename -- "$0" ||
    $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
    	 X"$0" : 'X\(//\)$' \| \
    	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X/"$0" |
        sed '/^.*\/\([^/][^/]*\)\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
    
    # Avoid depending upon Character Ranges.
    as_cr_letters='abcdefghijklmnopqrstuvwxyz'
    as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    as_cr_Letters=$as_cr_letters$as_cr_LETTERS
    as_cr_digits='0123456789'
    as_cr_alnum=$as_cr_Letters$as_cr_digits
    
    
    # Determine whether it's possible to make 'echo' print without a newline.
    # These variables are no longer used directly by Autoconf, but are AC_SUBSTed
    # for compatibility with existing Makefiles.
    ECHO_C= ECHO_N= ECHO_T=
    case `echo -n x` in #(((((
    -n*)
      case `echo 'xy\c'` in
      *c*) ECHO_T='	';;	# ECHO_T is single tab character.
      xy)  ECHO_C='\c';;
      *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
           ECHO_T='	';;
      esac;;
    *)
      ECHO_N='-n';;
    esac
    
    # For backward compatibility with old third-party macros, we provide
    # the shell variables $as_echo and $as_echo_n.  New code should use
    # AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
    as_echo='printf %s\n'
    as_echo_n='printf %s'
    
    rm -f conf$$ conf$$.exe conf$$.file
    if test -d conf$$.dir; then
      rm -f conf$$.dir/conf$$.file
    else
      rm -f conf$$.dir
      mkdir conf$$.dir 2>/dev/null
    fi
    if (echo >conf$$.file) 2>/dev/null; then
      if ln -s conf$$.file conf$$ 2>/dev/null; then
        as_ln_s='ln -s'
        # ... but there are two gotchas:
        # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
        # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
        # In both cases, we have to default to 'cp -pR'.
        ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
          as_ln_s='cp -pR'
      elif ln conf$$.file conf$$ 2>/dev/null; then
        as_ln_s=ln
      else
        as_ln_s='cp -pR'
      fi
    else
      as_ln_s='cp -pR'
    fi
    rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
    rmdir conf$$.dir 2>/dev/null
    
    
    # as_fn_mkdir_p
    # -------------
    # Create "$as_dir" as a directory, including parents if necessary.
    as_fn_mkdir_p ()
    {
    
      case $as_dir in #(
      -*) as_dir=./$as_dir;;
      esac
      test -d "$as_dir" || eval $as_mkdir_p || {
        as_dirs=
        while :; do
          case $as_dir in #(
          *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
          *) as_qdir=$as_dir;;
          esac
          as_dirs="'$as_qdir' $as_dirs"
          as_dir=`$as_dirname -- "$as_dir" ||
    $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
    	 X"$as_dir" : 'X\(//\)[^/]' \| \
    	 X"$as_dir" : 'X\(//\)$' \| \
    	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$as_dir" |
        sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
          test -d "$as_dir" && break
        done
        test -z "$as_dirs" || eval "mkdir $as_dirs"
      } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
    
    
    } # as_fn_mkdir_p
    if mkdir -p . 2>/dev/null; then
      as_mkdir_p='mkdir -p "$as_dir"'
    else
      test -d ./-p && rmdir ./-p
      as_mkdir_p=false
    fi
    
    
    # as_fn_executable_p FILE
    # -----------------------
    # Test if FILE is an executable regular file.
    as_fn_executable_p ()
    {
      test -f "$1" && test -x "$1"
    } # as_fn_executable_p
    as_test_x='test -x'
    as_executable_p=as_fn_executable_p
    
    # Sed expression to map a string onto a valid CPP name.
    as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
    as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
    
    # Sed expression to map a string onto a valid variable name.
    as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
    as_tr_sh="eval sed '$as_sed_sh'" # deprecated
    
    
    exec 6>&1
    ## ----------------------------------- ##
    ## Main body of $CONFIG_STATUS script. ##
    ## ----------------------------------- ##
    _ASEOF
    test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    # Save the log message, to keep $0 and so on meaningful, and to
    # report actual input values of CONFIG_FILES etc. instead of their
    # values after options handling.
    ac_log="
    This file was extended by ALPS $as_me 1.0, which was
    generated by GNU Autoconf 2.72.  Invocation command line was
    
      CONFIG_FILES    = $CONFIG_FILES
      CONFIG_HEADERS  = $CONFIG_HEADERS
      CONFIG_LINKS    = $CONFIG_LINKS
      CONFIG_COMMANDS = $CONFIG_COMMANDS
      $ $0 $@
    
    on `(hostname || uname -n) 2>/dev/null | sed 1q`
    "
    
    _ACEOF
    
    case $ac_config_files in *"
    "*) set x $ac_config_files; shift; ac_config_files=$*;;
    esac
    
    case $ac_config_headers in *"
    "*) set x $ac_config_headers; shift; ac_config_headers=$*;;
    esac
    
    
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    # Files that config.status was made for.
    config_files="$ac_config_files"
    config_headers="$ac_config_headers"
    config_commands="$ac_config_commands"
    
    _ACEOF
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    ac_cs_usage="\
    '$as_me' instantiates files and other configuration actions
    from templates according to the current configuration.  Unless the files
    and actions are specified as TAGs, all are instantiated by default.
    
    Usage: $0 [OPTION]... [TAG]...
    
      -h, --help       print this help, then exit
      -V, --version    print version number and configuration settings, then exit
          --config     print configuration, then exit
      -q, --quiet, --silent
                       do not print progress messages
      -d, --debug      don't remove temporary files
          --recheck    update $as_me by reconfiguring in the same conditions
          --file=FILE[:TEMPLATE]
                       instantiate the configuration file FILE
          --header=FILE[:TEMPLATE]
                       instantiate the configuration header FILE
    
    Configuration files:
    $config_files
    
    Configuration headers:
    $config_headers
    
    Configuration commands:
    $config_commands
    
    Report bugs to <d.verscharen@ucl.ac.uk>."
    
    _ACEOF
    ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
    ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    ac_cs_config='$ac_cs_config_escaped'
    ac_cs_version="\\
    ALPS config.status 1.0
    configured by $0, generated by GNU Autoconf 2.72,
      with options \\"\$ac_cs_config\\"
    
    Copyright (C) 2023 Free Software Foundation, Inc.
    This config.status script is free software; the Free Software Foundation
    gives unlimited permission to copy, distribute and modify it."
    
    ac_pwd='$ac_pwd'
    srcdir='$srcdir'
    INSTALL='$INSTALL'
    MKDIR_P='$MKDIR_P'
    AWK='$AWK'
    test -n "\$AWK" || AWK=awk
    _ACEOF
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    # The default lists apply if the user does not specify any file.
    ac_need_defaults=:
    while test $# != 0
    do
      case $1 in
      --*=?*)
        ac_option=`expr "X$1" : 'X\([^=]*\)='`
        ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
        ac_shift=:
        ;;
      --*=)
        ac_option=`expr "X$1" : 'X\([^=]*\)='`
        ac_optarg=
        ac_shift=:
        ;;
      *)
        ac_option=$1
        ac_optarg=$2
        ac_shift=shift
        ;;
      esac
    
      case $ac_option in
      # Handling of the options.
      -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
        ac_cs_recheck=: ;;
      --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
        printf "%s\n" "$ac_cs_version"; exit ;;
      --config | --confi | --conf | --con | --co | --c )
        printf "%s\n" "$ac_cs_config"; exit ;;
      --debug | --debu | --deb | --de | --d | -d )
        debug=: ;;
      --file | --fil | --fi | --f )
        $ac_shift
        case $ac_optarg in
        *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
        '') as_fn_error $? "missing file argument" ;;
        esac
        as_fn_append CONFIG_FILES " '$ac_optarg'"
        ac_need_defaults=false;;
      --header | --heade | --head | --hea )
        $ac_shift
        case $ac_optarg in
        *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
        esac
        as_fn_append CONFIG_HEADERS " '$ac_optarg'"
        ac_need_defaults=false;;
      --he | --h)
        # Conflict between --help and --header
        as_fn_error $? "ambiguous option: '$1'
    Try '$0 --help' for more information.";;
      --help | --hel | -h )
        printf "%s\n" "$ac_cs_usage"; exit ;;
      -q | -quiet | --quiet | --quie | --qui | --qu | --q \
      | -silent | --silent | --silen | --sile | --sil | --si | --s)
        ac_cs_silent=: ;;
    
      # This is an error.
      -*) as_fn_error $? "unrecognized option: '$1'
    Try '$0 --help' for more information." ;;
    
      *) as_fn_append ac_config_targets " $1"
         ac_need_defaults=false ;;
    
      esac
      shift
    done
    
    ac_configure_extra_args=
    
    if $ac_cs_silent; then
      exec 6>/dev/null
      ac_configure_extra_args="$ac_configure_extra_args --silent"
    fi
    
    _ACEOF
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    if \$ac_cs_recheck; then
      set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
      shift
      \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
      CONFIG_SHELL='$SHELL'
      export CONFIG_SHELL
      exec "\$@"
    fi
    
    _ACEOF
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    exec 5>>config.log
    {
      echo
      sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
    ## Running $as_me. ##
    _ASBOX
      printf "%s\n" "$ac_log"
    } >&5
    
    _ACEOF
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    #
    # INIT-COMMANDS
    #
    AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
    
    _ACEOF
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    
    # Handling of arguments.
    for ac_config_target in $ac_config_targets
    do
      case $ac_config_target in
        "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
        "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
        "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
        "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
        "interpolation/Makefile") CONFIG_FILES="$CONFIG_FILES interpolation/Makefile" ;;
        "distribution/Makefile") CONFIG_FILES="$CONFIG_FILES distribution/Makefile" ;;
    
      *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
      esac
    done
    
    
    # If the user did not use the arguments to specify the items to instantiate,
    # then the envvar interface is used.  Set only those that are not.
    # We use the long form for the default assignment because of an extremely
    # bizarre bug on SunOS 4.1.3.
    if $ac_need_defaults; then
      test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
      test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
      test ${CONFIG_COMMANDS+y} || CONFIG_COMMANDS=$config_commands
    fi
    
    # Have a temporary directory for convenience.  Make it in the build tree
    # simply because there is no reason against having it here, and in addition,
    # creating and moving files from /tmp can sometimes cause problems.
    # Hook for its removal unless debugging.
    # Note that there is a small window in which the directory will not be cleaned:
    # after its creation but before its name has been assigned to '$tmp'.
    $debug ||
    {
      tmp= ac_tmp=
      trap 'exit_status=$?
      : "${ac_tmp:=$tmp}"
      { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
    ' 0
      trap 'as_fn_exit 1' 1 2 13 15
    }
    # Create a (secure) tmp directory for tmp files.
    
    {
      tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
      test -d "$tmp"
    }  ||
    {
      tmp=./conf$$-$RANDOM
      (umask 077 && mkdir "$tmp")
    } || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
    ac_tmp=$tmp
    
    # Set up the scripts for CONFIG_FILES section.
    # No need to generate them if there are no CONFIG_FILES.
    # This happens for instance with './config.status config.h'.
    if test -n "$CONFIG_FILES"; then
    
    
    ac_cr=`echo X | tr X '\015'`
    # On cygwin, bash can eat \r inside `` if the user requested igncr.
    # But we know of no other shell where ac_cr would be empty at this
    # point, so we can use a bashism as a fallback.
    if test "x$ac_cr" = x; then
      eval ac_cr=\$\'\\r\'
    fi
    ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
    if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
      ac_cs_awk_cr='\\r'
    else
      ac_cs_awk_cr=$ac_cr
    fi
    
    echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
    _ACEOF
    
    
    {
      echo "cat >conf$$subs.awk <<_ACEOF" &&
      echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
      echo "_ACEOF"
    } >conf$$subs.sh ||
      as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
    ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
    ac_delim='%!_!# '
    for ac_last_try in false false false false false :; do
      . ./conf$$subs.sh ||
        as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
    
      ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
      if test $ac_delim_n = $ac_delim_num; then
        break
      elif $ac_last_try; then
        as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
      else
        ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
      fi
    done
    rm -f conf$$subs.sh
    
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
    _ACEOF
    sed -n '
    h
    s/^/S["/; s/!.*/"]=/
    p
    g
    s/^[^!]*!//
    :repl
    t repl
    s/'"$ac_delim"'$//
    t delim
    :nl
    h
    s/\(.\{148\}\)..*/\1/
    t more1
    s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
    p
    n
    b repl
    :more1
    s/["\\]/\\&/g; s/^/"/; s/$/"\\/
    p
    g
    s/.\{148\}//
    t nl
    :delim
    h
    s/\(.\{148\}\)..*/\1/
    t more2
    s/["\\]/\\&/g; s/^/"/; s/$/"/
    p
    b
    :more2
    s/["\\]/\\&/g; s/^/"/; s/$/"\\/
    p
    g
    s/.\{148\}//
    t delim
    ' <conf$$subs.awk | sed '
    /^[^""]/{
      N
      s/\n//
    }
    ' >>$CONFIG_STATUS || ac_write_fail=1
    rm -f conf$$subs.awk
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    _ACAWK
    cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
      for (key in S) S_is_set[key] = 1
      FS = ""
    
    }
    {
      line = $ 0
      nfields = split(line, field, "@")
      substed = 0
      len = length(field[1])
      for (i = 2; i < nfields; i++) {
        key = field[i]
        keylen = length(key)
        if (S_is_set[key]) {
          value = S[key]
          line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
          len += length(value) + length(field[++i])
          substed = 1
        } else
          len += 1 + keylen
      }
    
      print line
    }
    
    _ACAWK
    _ACEOF
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
      sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
    else
      cat
    fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
      || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
    _ACEOF
    
    # VPATH may cause trouble with some makes, so we remove sole $(srcdir),
    # ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
    # trailing colons and then remove the whole line if VPATH becomes empty
    # (actually we leave an empty line to preserve line numbers).
    if test "x$srcdir" = x.; then
      ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
    h
    s///
    s/^/:/
    s/[	 ]*$/:/
    s/:\$(srcdir):/:/g
    s/:\${srcdir}:/:/g
    s/:@srcdir@:/:/g
    s/^:*//
    s/:*$//
    x
    s/\(=[	 ]*\).*/\1/
    G
    s/\n//
    s/^[^=]*=[	 ]*$//
    }'
    fi
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    fi # test -n "$CONFIG_FILES"
    
    # Set up the scripts for CONFIG_HEADERS section.
    # No need to generate them if there are no CONFIG_HEADERS.
    # This happens for instance with './config.status Makefile'.
    if test -n "$CONFIG_HEADERS"; then
    cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
    BEGIN {
    _ACEOF
    
    # Transform confdefs.h into an awk script 'defines.awk', embedded as
    # here-document in config.status, that substitutes the proper values into
    # config.h.in to produce config.h.
    
    # Create a delimiter string that does not exist in confdefs.h, to ease
    # handling of long lines.
    ac_delim='%!_!# '
    for ac_last_try in false false :; do
      ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
      if test -z "$ac_tt"; then
        break
      elif $ac_last_try; then
        as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
      else
        ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
      fi
    done
    
    # For the awk script, D is an array of macro values keyed by name,
    # likewise P contains macro parameters if any.  Preserve backslash
    # newline sequences.
    
    ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
    sed -n '
    s/.\{148\}/&'"$ac_delim"'/g
    t rset
    :rset
    s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
    t def
    d
    :def
    s/\\$//
    t bsnl
    s/["\\]/\\&/g
    s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
    D["\1"]=" \3"/p
    s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
    d
    :bsnl
    s/["\\]/\\&/g
    s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
    D["\1"]=" \3\\\\\\n"\\/p
    t cont
    s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
    t cont
    d
    :cont
    n
    s/.\{148\}/&'"$ac_delim"'/g
    t clear
    :clear
    s/\\$//
    t bsnlc
    s/["\\]/\\&/g; s/^/"/; s/$/"/p
    d
    :bsnlc
    s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
    b cont
    ' <confdefs.h | sed '
    s/'"$ac_delim"'/"\\\
    "/g' >>$CONFIG_STATUS || ac_write_fail=1
    
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
      for (key in D) D_is_set[key] = 1
      FS = ""
    }
    /^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
      line = \$ 0
      split(line, arg, " ")
      if (arg[1] == "#") {
        defundef = arg[2]
        mac1 = arg[3]
      } else {
        defundef = substr(arg[1], 2)
        mac1 = arg[2]
      }
      split(mac1, mac2, "(") #)
      macro = mac2[1]
      prefix = substr(line, 1, index(line, defundef) - 1)
      if (D_is_set[macro]) {
        # Preserve the white space surrounding the "#".
        print prefix "define", macro P[macro] D[macro]
        next
      } else {
        # Replace #undef with comments.  This is necessary, for example,
        # in the case of _POSIX_SOURCE, which is predefined and required
        # on some systems where configure will not decide to define it.
        if (defundef == "undef") {
          print "/*", prefix defundef, macro, "*/"
          next
        }
      }
    }
    { print }
    _ACAWK
    _ACEOF
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
      as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
    fi # test -n "$CONFIG_HEADERS"
    
    
    eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
    shift
    for ac_tag
    do
      case $ac_tag in
      :[FHLC]) ac_mode=$ac_tag; continue;;
      esac
      case $ac_mode$ac_tag in
      :[FHL]*:*);;
      :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
      :[FH]-) ac_tag=-:-;;
      :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
      esac
      ac_save_IFS=$IFS
      IFS=:
      set x $ac_tag
      IFS=$ac_save_IFS
      shift
      ac_file=$1
      shift
    
      case $ac_mode in
      :L) ac_source=$1;;
      :[FH])
        ac_file_inputs=
        for ac_f
        do
          case $ac_f in
          -) ac_f="$ac_tmp/stdin";;
          *) # Look for the file first in the build tree, then in the source tree
    	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
    	 # because $ac_f cannot contain ':'.
    	 test -f "$ac_f" ||
    	   case $ac_f in
    	   [\\/$]*) false;;
    	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
    	   esac ||
    	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
          esac
          case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
          as_fn_append ac_file_inputs " '$ac_f'"
        done
    
        # Let's still pretend it is 'configure' which instantiates (i.e., don't
        # use $as_me), people would be surprised to read:
        #    /* config.h.  Generated by config.status.  */
        configure_input='Generated from '`
    	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
    	`' by configure.'
        if test x"$ac_file" != x-; then
          configure_input="$ac_file.  $configure_input"
          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
    printf "%s\n" "$as_me: creating $ac_file" >&6;}
        fi
        # Neutralize special characters interpreted by sed in replacement strings.
        case $configure_input in #(
        *\&* | *\|* | *\\* )
           ac_sed_conf_input=`printf "%s\n" "$configure_input" |
           sed 's/[\\\\&|]/\\\\&/g'`;; #(
        *) ac_sed_conf_input=$configure_input;;
        esac
    
        case $ac_tag in
        *:-:* | *:-) cat >"$ac_tmp/stdin" \
          || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
        esac
        ;;
      esac
    
      ac_dir=`$as_dirname -- "$ac_file" ||
    $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
    	 X"$ac_file" : 'X\(//\)[^/]' \| \
    	 X"$ac_file" : 'X\(//\)$' \| \
    	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$ac_file" |
        sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
      as_dir="$ac_dir"; as_fn_mkdir_p
      ac_builddir=.
    
    case "$ac_dir" in
    .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
    *)
      ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
      # A ".." for each directory in $ac_dir_suffix.
      ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
      case $ac_top_builddir_sub in
      "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
      *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
      esac ;;
    esac
    ac_abs_top_builddir=$ac_pwd
    ac_abs_builddir=$ac_pwd$ac_dir_suffix
    # for backward compatibility:
    ac_top_builddir=$ac_top_build_prefix
    
    case $srcdir in
      .)  # We are building in place.
        ac_srcdir=.
        ac_top_srcdir=$ac_top_builddir_sub
        ac_abs_top_srcdir=$ac_pwd ;;
      [\\/]* | ?:[\\/]* )  # Absolute name.
        ac_srcdir=$srcdir$ac_dir_suffix;
        ac_top_srcdir=$srcdir
        ac_abs_top_srcdir=$srcdir ;;
      *) # Relative name.
        ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
        ac_top_srcdir=$ac_top_build_prefix$srcdir
        ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
    esac
    ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
    
    
      case $ac_mode in
      :F)
      #
      # CONFIG_FILE
      #
    
      case $INSTALL in
      [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
      *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
      esac
      ac_MKDIR_P=$MKDIR_P
      case $MKDIR_P in
      [\\/$]* | ?:[\\/]* ) ;;
      */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
      esac
    _ACEOF
    
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    # If the template does not know about datarootdir, expand it.
    # FIXME: This hack should be removed a few years after 2.60.
    ac_datarootdir_hack=; ac_datarootdir_seen=
    ac_sed_dataroot='
    /datarootdir/ {
      p
      q
    }
    /@datadir@/p
    /@docdir@/p
    /@infodir@/p
    /@localedir@/p
    /@mandir@/p'
    case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
    *datarootdir*) ac_datarootdir_seen=yes;;
    *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
    printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
    _ACEOF
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
      ac_datarootdir_hack='
      s&@datadir@&$datadir&g
      s&@docdir@&$docdir&g
      s&@infodir@&$infodir&g
      s&@localedir@&$localedir&g
      s&@mandir@&$mandir&g
      s&\\\${datarootdir}&$datarootdir&g' ;;
    esac
    _ACEOF
    
    # Neutralize VPATH when '$srcdir' = '.'.
    # Shell code in configure.ac might set extrasub.
    # FIXME: do we really want to maintain this feature?
    cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
    ac_sed_extra="$ac_vpsub
    $extrasub
    _ACEOF
    cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
    :t
    /@[a-zA-Z_][a-zA-Z_0-9]*@/!b
    s|@configure_input@|$ac_sed_conf_input|;t t
    s&@top_builddir@&$ac_top_builddir_sub&;t t
    s&@top_build_prefix@&$ac_top_build_prefix&;t t
    s&@srcdir@&$ac_srcdir&;t t
    s&@abs_srcdir@&$ac_abs_srcdir&;t t
    s&@top_srcdir@&$ac_top_srcdir&;t t
    s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
    s&@builddir@&$ac_builddir&;t t
    s&@abs_builddir@&$ac_abs_builddir&;t t
    s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
    s&@INSTALL@&$ac_INSTALL&;t t
    s&@MKDIR_P@&$ac_MKDIR_P&;t t
    $ac_datarootdir_hack
    "
    eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
      >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
    
    test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
      { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
      { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
          "$ac_tmp/out"`; test -z "$ac_out"; } &&
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
    which seems to be undefined.  Please make sure it is defined" >&5
    printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
    which seems to be undefined.  Please make sure it is defined" >&2;}
    
      rm -f "$ac_tmp/stdin"
      case $ac_file in
      -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
      *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
      esac \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
     ;;
      :H)
      #
      # CONFIG_HEADER
      #
      if test x"$ac_file" != x-; then
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          printf "%s\n" "/* $configure_input  */" >&1 \
          && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
        } >"$ac_tmp/config.h" \
          || as_fn_error $? "could not create $ac_file" "$LINENO" 5
        if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
          { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
    printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
        else
          rm -f "$ac_file"
          mv "$ac_tmp/config.h" "$ac_file" \
    	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
        fi
      else
        printf "%s\n" "/* $configure_input  */" >&1 \
          && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
          || as_fn_error $? "could not create -" "$LINENO" 5
      fi
    # Compute "$ac_file"'s index in $config_headers.
    _am_arg="$ac_file"
    _am_stamp_count=1
    for _am_header in $config_headers :; do
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        $_am_arg | $_am_arg:* )
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        * )
          _am_stamp_count=`expr $_am_stamp_count + 1` ;;
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    echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
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    	 X"$_am_arg" : 'X\(//\)$' \| \
    	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$_am_arg" |
        sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`/stamp-h$_am_stamp_count
     ;;
    
      :C)  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
    printf "%s\n" "$as_me: executing $ac_file commands" >&6;}
     ;;
      esac
    
    
      case $ac_file$ac_mode in
        "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
      # Older Autoconf quotes --file arguments for eval, but not when files
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      # TODO: see whether this extra hack can be removed once we start
      # requiring Autoconf 2.70 or later.
      case $CONFIG_FILES in #(
      *\'*) :
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        set x $CONFIG_FILES ;; #(
      *) :
         ;;
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      # Used to flag and report bootstrapping failures.
      am_rc=0
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        # Check whether this is an Automake generated Makefile which includes
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        am_dirpart=`$as_dirname -- "$am_mf" ||
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    	 X"$am_mf" : 'X\(//\)$' \| \
    	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X"$am_mf" |
        sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)[^/].*/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\(\/\).*/{
    	    s//\1/
    	    q
    	  }
    	  s/.*/./; q'`
        am_filepart=`$as_basename -- "$am_mf" ||
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    	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
    printf "%s\n" X/"$am_mf" |
        sed '/^.*\/\([^/][^/]*\)\/*$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\/\)$/{
    	    s//\1/
    	    q
    	  }
    	  /^X\/\(\/\).*/{
    	    s//\1/
    	    q
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    	  s/.*/./; q'`
        { echo "$as_me:$LINENO: cd "$am_dirpart" \
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            | $MAKE -f - am--depfiles" >&5
       (cd "$am_dirpart" \
          && sed -e '/# am--include-marker/d' "$am_filepart" \
            | $MAKE -f - am--depfiles) >&5 2>&5
       ac_status=$?
       echo "$as_me:$LINENO: \$? = $ac_status" >&5
       (exit $ac_status); } || am_rc=$?
      done
      if test $am_rc -ne 0; then
        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
    printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
    as_fn_error $? "Something went wrong bootstrapping makefile fragments
        for automatic dependency tracking.  If GNU make was not used, consider
        re-running the configure script with MAKE=\"gmake\" (or whatever is
        necessary).  You can also try re-running configure with the
        '--disable-dependency-tracking' option to at least be able to build
        the package (albeit without support for automatic dependency tracking).
    See 'config.log' for more details" "$LINENO" 5; }
      fi
      { am_dirpart=; unset am_dirpart;}
      { am_filepart=; unset am_filepart;}
      { am_mf=; unset am_mf;}
      { am_rc=; unset am_rc;}
      rm -f conftest-deps.mk
    }
     ;;
    
      esac
    done # for ac_tag
    
    
    as_fn_exit 0
    _ACEOF
    ac_clean_files=$ac_clean_files_save
    
    test $ac_write_fail = 0 ||
      as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
    
    
    # configure is writing to config.log, and then calls config.status.
    # config.status does its own redirection, appending to config.log.
    # Unfortunately, on DOS this fails, as config.log is still kept open
    # by configure, so config.status won't be able to write to it; its
    # output is simply discarded.  So we exec the FD to /dev/null,
    # effectively closing config.log, so it can be properly (re)opened and
    # appended to by config.status.  When coming back to configure, we
    # need to make the FD available again.
    if test "$no_create" != yes; then
      ac_cs_success=:
      ac_config_status_args=
      test "$silent" = yes &&
        ac_config_status_args="$ac_config_status_args --quiet"
      exec 5>/dev/null
      $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
      exec 5>>config.log
      # Use ||, not &&, to avoid exiting from the if with $? = 1, which
      # would make configure fail if this is the last instruction.
      $ac_cs_success || as_fn_exit 1
    fi
    if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
    printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
    fi
    
    
    

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