#! /bin/sh

## DO NOT EDIT - This file generated from build-aux/bootstrap.in

##               by inline-source v2014-01-03.01

# Bootstrap an Autotooled package from checked-out sources.

# Written by Gary V. Vaughan, 2010

# Copyright (C) 2010-2015 Free Software Foundation, Inc.

# This is free software; see the source for copying conditions.  There is NO

# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Originally written by Paul Eggert.  The canonical version of this

# script is maintained as build-aux/bootstrap in gnulib, however, to

# be useful to your project, you should place a copy of it under

# version control in the top-level directory of your project.  The

# intent is that all customization can be done with a bootstrap.conf

# file also maintained in your version control; gnulib comes with a

# template build-aux/bootstrap.conf to get you started.

# Please report bugs or propose patches to bug-gnulib@gnu.org.

## ------ ##

## Usage. ##

## ------ ##

# Most GNUish projects do not keep all of the generated Autotool

# files under version control, but running all of the right tools

# with the right arguments, in the correct order to regenerate

# all of those files in readiness for configuration and building

# can be surprisingly involved!  Many projects have a 'bootstrap'

# script under version control to invoke Autotools and perform

# other assorted book-keeping with version numbers and the like.

#

# This bootstrap script aims to probe the configure.ac and top

# Makefile.am of your project to automatically determine what

# the correct ordering and arguments are and then run the tools for

# you.  In order to use it, you can generate an initial standalone

# script with:

#

#   gl/build-aux/inline-source gl/build-aux/bootstrap.in > bootstrap

#

# You should then store than script in version control for other

# developers in you project.  It will give you instructions about

# how to keep it up to date if the sources change.

#

# See gl/doc/bootstrap.texi for documentation on how to write

# a bootstrap.conf to customize it for your project's

# idiosyncracies.

## ================================================================== ##

##                                                                    ##

##     DO NOT EDIT THIS FILE, CUSTOMIZE IT USING A BOOTSTRAP.CONF     ##

##                                                                    ##

## ================================================================== ##

## ------------------------------- ##

## User overridable command paths. ##

## ------------------------------- ##

# All uppercase denotes values stored in the environment.  These

# variables should generally be overridden by the user - however, we do

# set them to 'true' in some parts of this script to prevent them being

# called at the wrong time by other tools that we call ('autoreconf',

# for example).

#

# We also allow 'LIBTOOLIZE', 'M4', 'SHA1SUM' and some others to be

# overridden, and export the result for child processes, but they are

# handled by the function 'func_find_tool' and not defaulted in this

# section.

: ${ACLOCAL="aclocal"}

: ${AUTOCONF="autoconf"}

: ${AUTOHEADER="autoheader"}

: ${AUTOM4TE="autom4te"}

: ${AUTOHEADER="autoheader"}

: ${AUTOMAKE="automake"}

: ${AUTOPOINT="autopoint"}

: ${AUTORECONF="autoreconf"}

: ${CMP="cmp"}

: ${CONFIG_SHELL="/bin/sh"}

: ${DIFF="diff"}

: ${GIT="git"}

: ${LN_S="ln -s"}

: ${RM="rm"}

export ACLOCAL

export AUTOCONF

export AUTOHEADER

export AUTOM4TE

export AUTOHEADER

export AUTOMAKE

export AUTOPOINT

export AUTORECONF

export CONFIG_SHELL

: ${LUAROCKS="luarocks"}

export LUAROCKS

## -------------- ##

## Configuration. ##

## -------------- ##

# A newline delimited list of triples of programs (that respond to

# --version), the minimum version numbers required (or just '-' in the

# version field if any version will be sufficient) and homepage URLs

# to help locate missing packages.

buildreq=

# Name of a file containing instructions on installing missing packages

# required in 'buildreq'.

buildreq_readme=README-hacking

# These are extracted from AC_INIT in configure.ac, though you can

# override those values in 'bootstrap.conf' if you prefer.

build_aux=

macro_dir=

package=

package_name=

package_version=

package_bugreport=

# These are extracted from 'gnulib-cache.m4', or else fall-back

# automatically on the gnulib defaults; unless you set the values

# manually in 'bootstrap.conf'.

doc_base=

gnulib_mk=

gnulib_name=

local_gl_dir=

source_base=

tests_base=

# The list of gnulib modules required at 'gnulib-tool' time.  If you

# check 'gnulib-cache.m4' into your repository, then this list will be

# extracted automatically.

gnulib_modules=

# Extra gnulib files that are not in modules, which override files of

# the same name installed by other bootstrap tools.

gnulib_non_module_files="

        build-aux/compile

        build-aux/install-sh

        build-aux/mdate-sh

        build-aux/texinfo.tex

        build-aux/depcomp

        build-aux/config.guess

        build-aux/config.sub

        doc/INSTALL

"

# Relative path to the local gnulib submodule, and url to the upstream

# git repository. If you have a gnulib entry in your .gitmodules file,

# these values are ignored.

gnulib_path=

gnulib_url=

# Additional gnulib-tool options to use.

gnulib_tool_options="

        --no-changelog

"

# bootstrap removes any macro-files that are not included by aclocal.m4,

# except for files listed in this variable that are always kept.

gnulib_precious="

        gnulib-tool.m4

"

# When truncating long commands for display, always allow at least this

# many characters before truncating.

min_cmd_len=160

# The command to download all .po files for a specified domain into

# a specified directory.  Fill in the first %s is the domain name, and

# the second with the destination directory.  Use rsync's -L and -r

# options because the latest/%s directory and the .po files within are

# all symlinks.

po_download_command_format=\

"rsync --delete --exclude '*.s1' -Lrtvz \

'translationproject.org::tp/latest/%s/' '%s'"

# Other locale categories that need message catalogs.

extra_locale_categories=

# Additional xgettext options to use.  Gnulib might provide you with an

# extensive list of additional options to append to this, but gettext

# 0.16.1 and newer appends them automaticaly, so you can safely ignore

# the complaints from 'gnulib-tool' if your $configure_ac states:

#

#    AM_GNU_GETTEXT_VERSION([0.16.1])

xgettext_options="

        --flag=_:1:pass-c-format

        --flag=N_:1:pass-c-format

"

# Package copyright holder for gettext files.  Defaults to FSF if unset.

copyright_holder=

# File that should exist in the top directory of a checked out hierarchy,

# but not in a distribution tarball.

checkout_only_file=

# Whether to use copies instead of symlinks by default (if set to true,

# the --copy option has no effect).

copy=false

# Set this to ".cvsignore .gitignore" in 'bootstrap.conf' if you want

# those files to be generated in directories like 'lib/', 'm4/', and 'po/',

# or set it to "auto" to make this script select what to use based

# on what version control system (if any) is used in the source directory.

# Or set it to "none" to ignore VCS ignore files entirely.  Default is

# "auto".

vc_ignore=

# List of slingshot files to link into stdlib tree before autotooling.

slingshot_files=$slingshot_files

# Relative path to the local slingshot submodule, and url to the upsream

# git repository.  If you have a slingshot entry in your .gitmodules file,

# these values are ignored.

slingshot_path=$slingshot_path

slingshot_url=$slingshot_url

# NOTE: slingshot bootstrap will check rockspecs listed in $buildreq,

#       according to the URL part of a specification triple ending in

#       `.rockspec`.

## ------------------- ##

## External Libraries. ##

## ------------------- ##

# Source required external libraries:

# Set a version string for this script.

scriptversion=2014-01-03.01; # UTC

# General shell script boiler plate, and helper functions.

# Written by Gary V. Vaughan, 2004

# Copyright (C) 2004-2014 Free Software Foundation, Inc.

# This is free software; see the source for copying conditions.  There is NO

# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

# As a special exception to the GNU General Public License, if you distribute

# this file as part of a program or library that is built using GNU Libtool,

# you may include this file under the same distribution terms that you use

# for the rest of that program.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU

# General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program. If not, see <http://www.gnu.org/licenses/>.

# Please report bugs or propose patches to gary@gnu.org.

## ------ ##

## Usage. ##

## ------ ##

# Evaluate this file near the top of your script to gain access to

# the functions and variables defined here:

#

#   . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh

#

# If you need to override any of the default environment variable

# settings, do that before evaluating this file.

## -------------------- ##

## Shell normalisation. ##

## -------------------- ##

# Some shells need a little help to be as Bourne compatible as possible.

# Before doing anything else, make sure all that help has been provided!

DUALCASE=1; export DUALCASE # for MKS sh

if test -n "${ZSH_VERSION+set}" && (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 `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac

fi

# NLS nuisances: We save the old values in case they are required later.

_G_user_locale=

_G_safe_locale=

for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES

do

  eval "if test set = \"\${$_G_var+set}\"; then

          save_$_G_var=\$$_G_var

          $_G_var=C

	  export $_G_var

	  _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"

	  _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"

	fi"

done

# CDPATH.

(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

# Make sure IFS has a sensible default

sp=' '

nl='

'

IFS="$sp	$nl"

# There are apparently some retarded systems that use ';' as a PATH separator!

if test "${PATH_SEPARATOR+set}" != set; 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

## ------------------------- ##

## Locate command utilities. ##

## ------------------------- ##

# func_executable_p FILE

# ----------------------

# Check that FILE is an executable regular file.

func_executable_p ()

{

    test -f "$1" && test -x "$1"

}

# func_path_progs PROGS_LIST CHECK_FUNC [PATH]

# --------------------------------------------

# Search for either a program that responds to --version with output

# containing "GNU", or else returned by CHECK_FUNC otherwise, by

# trying all the directories in PATH with each of the elements of

# PROGS_LIST.

#

# CHECK_FUNC should accept the path to a candidate program, and

# set $func_check_prog_result if it truncates its output less than

# $_G_path_prog_max characters.

func_path_progs ()

{

    _G_progs_list=$1

    _G_check_func=$2

    _G_PATH=${3-"$PATH"}

    _G_path_prog_max=0

    _G_path_prog_found=false

    _G_save_IFS=$IFS; IFS=$PATH_SEPARATOR

    for _G_dir in $_G_PATH; do

      IFS=$_G_save_IFS

      test -z "$_G_dir" && _G_dir=.

      for _G_prog_name in $_G_progs_list; do

        for _exeext in '' .EXE; do

          _G_path_prog=$_G_dir/$_G_prog_name$_exeext

          func_executable_p "$_G_path_prog" || continue

          case `"$_G_path_prog" --version 2>&1` in

            *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;

            *)     $_G_check_func $_G_path_prog

		   func_path_progs_result=$func_check_prog_result

		   ;;

          esac

          $_G_path_prog_found && break 3

        done

      done

    done

    IFS=$_G_save_IFS

    test -z "$func_path_progs_result" && {

      echo "no acceptable sed could be found in \$PATH" >&2

      exit 1

    }

}

# We want to be able to use the functions in this file before configure

# has figured out where the best binaries are kept, which means we have

# to search for them ourselves - except when the results are already set

# where we skip the searches.

# Unless the user overrides by setting SED, search the path for either GNU

# sed, or the sed that truncates its output the least.

test -z "$SED" && {

  _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/

  for _G_i in 1 2 3 4 5 6 7; do

    _G_sed_script=$_G_sed_script$nl$_G_sed_script

  done

  echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed

  _G_sed_script=

  func_check_prog_sed ()

  {

    _G_path_prog=$1

    _G_count=0

    printf 0123456789 >conftest.in

    while :

    do

      cat conftest.in conftest.in >conftest.tmp

      mv conftest.tmp conftest.in

      cp conftest.in conftest.nl

      echo '' >> conftest.nl

      "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break

      diff conftest.out conftest.nl >/dev/null 2>&1 || break

      _G_count=`expr $_G_count + 1`

      if test "$_G_count" -gt "$_G_path_prog_max"; then

        # Best one so far, save it but keep looking for a better one

        func_check_prog_result=$_G_path_prog

        _G_path_prog_max=$_G_count

      fi

      # 10*(2^10) chars as input seems more than enough

      test 10 -lt "$_G_count" && break

    done

    rm -f conftest.in conftest.tmp conftest.nl conftest.out

  }

  func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin

  rm -f conftest.sed

  SED=$func_path_progs_result

}

# Unless the user overrides by setting GREP, search the path for either GNU

# grep, or the grep that truncates its output the least.

test -z "$GREP" && {

  func_check_prog_grep ()

  {

    _G_path_prog=$1

    _G_count=0

    _G_path_prog_max=0

    printf 0123456789 >conftest.in

    while :

    do

      cat conftest.in conftest.in >conftest.tmp

      mv conftest.tmp conftest.in

      cp conftest.in conftest.nl

      echo 'GREP' >> conftest.nl

      "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break

      diff conftest.out conftest.nl >/dev/null 2>&1 || break

      _G_count=`expr $_G_count + 1`

      if test "$_G_count" -gt "$_G_path_prog_max"; then

        # Best one so far, save it but keep looking for a better one

        func_check_prog_result=$_G_path_prog

        _G_path_prog_max=$_G_count

      fi

      # 10*(2^10) chars as input seems more than enough

      test 10 -lt "$_G_count" && break

    done

    rm -f conftest.in conftest.tmp conftest.nl conftest.out

  }

  func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin

  GREP=$func_path_progs_result

}

## ------------------------------- ##

## User overridable command paths. ##

## ------------------------------- ##

# All uppercase variable names are used for environment variables.  These

# variables can be overridden by the user before calling a script that

# uses them if a suitable command of that name is not already available

# in the command search PATH.

: ${CP="cp -f"}

: ${ECHO="printf %s\n"}

: ${EGREP="$GREP -E"}

: ${FGREP="$GREP -F"}

: ${LN_S="ln -s"}

: ${MAKE="make"}

: ${MKDIR="mkdir"}

: ${MV="mv -f"}

: ${RM="rm -f"}

: ${SHELL="${CONFIG_SHELL-/bin/sh}"}

## -------------------- ##

## Useful sed snippets. ##

## -------------------- ##

sed_dirname='s|/[^/]*$||'

sed_basename='s|^.*/||'

# Sed substitution that helps us do robust quoting.  It backslashifies

# metacharacters that are still active within double-quoted strings.

sed_quote_subst='s|\([`"$\\]\)|\\\1|g'

# Same as above, but do not quote variable references.

sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'

# Sed substitution that turns a string into a regex matching for the

# string literally.

sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'

# Sed substitution that converts a w32 file name or path

# that contains forward slashes, into one that contains

# (escaped) backslashes.  A very naive implementation.

sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'

# Re-'\' parameter expansions in output of sed_double_quote_subst that

# were '\'-ed in input to the same.  If an odd number of '\' preceded a

# '$' in input to sed_double_quote_subst, that '$' was protected from

# expansion.  Since each input '\' is now two '\'s, look for any number

# of runs of four '\'s followed by two '\'s and then a '$'.  '\' that '$'.

_G_bs='\\'

_G_bs2='\\\\'

_G_bs4='\\\\\\\\'

_G_dollar='\$'

sed_double_backslash="\

  s/$_G_bs4/&\\

/g

  s/^$_G_bs2$_G_dollar/$_G_bs&/

  s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g

  s/\n//g"

## ----------------- ##

## Global variables. ##

## ----------------- ##

# Except for the global variables explicitly listed below, the following

# functions in the '^func_' namespace, and the '^require_' namespace

# variables initialised in the 'Resource management' section, sourcing

# this file will not pollute your global namespace with anything

# else. There's no portable way to scope variables in Bourne shell

# though, so actually running these functions will sometimes place

# results into a variable named after the function, and often use

# temporary variables in the '^_G_' namespace. If you are careful to

# avoid using those namespaces casually in your sourcing script, things

# should continue to work as you expect. And, of course, you can freely

# overwrite any of the functions or variables defined here before

# calling anything to customize them.

EXIT_SUCCESS=0

EXIT_FAILURE=1

EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.

EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.

# Allow overriding, eg assuming that you follow the convention of

# putting '$debug_cmd' at the start of all your functions, you can get

# bash to show function call trace with:

#

#    debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name

debug_cmd=${debug_cmd-":"}

exit_cmd=:

# By convention, finish your script with:

#

#    exit $exit_status

#

# so that you can set exit_status to non-zero if you want to indicate

# something went wrong during execution without actually bailing out at

# the point of failure.

exit_status=$EXIT_SUCCESS

# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh

# is ksh but when the shell is invoked as "sh" and the current value of

# the _XPG environment variable is not equal to 1 (one), the special

# positional parameter $0, within a function call, is the name of the

# function.

progpath=$0

# The name of this program.

progname=`$ECHO "$progpath" |$SED "$sed_basename"`

# Make sure we have an absolute progpath for reexecution:

case $progpath in

  [\\/]*|[A-Za-z]:\\*) ;;

  *[\\/]*)

     progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`

     progdir=`cd "$progdir" && pwd`

     progpath=$progdir/$progname

     ;;

  *)

     _G_IFS=$IFS

     IFS=${PATH_SEPARATOR-:}

     for progdir in $PATH; do

       IFS=$_G_IFS

       test -x "$progdir/$progname" && break

     done

     IFS=$_G_IFS

     test -n "$progdir" || progdir=`pwd`

     progpath=$progdir/$progname

     ;;

esac

## ----------------- ##

## Standard options. ##

## ----------------- ##

# The following options affect the operation of the functions defined

# below, and should be set appropriately depending on run-time para-

# meters passed on the command line.

opt_dry_run=false

opt_quiet=false

opt_verbose=false

# Categories 'all' and 'none' are always available.  Append any others

# you will pass as the first argument to func_warning from your own

# code.

warning_categories=

# By default, display warnings according to 'opt_warning_types'.  Set

# 'warning_func'  to ':' to elide all warnings, or func_fatal_error to

# treat the next displayed warning as a fatal error.

warning_func=func_warn_and_continue

# Set to 'all' to display all warnings, 'none' to suppress all

# warnings, or a space delimited list of some subset of

# 'warning_categories' to display only the listed warnings.

opt_warning_types=all

## -------------------- ##

## Resource management. ##

## -------------------- ##

# This section contains definitions for functions that each ensure a

# particular resource (a file, or a non-empty configuration variable for

# example) is available, and if appropriate to extract default values

# from pertinent package files. Call them using their associated

# 'require_*' variable to ensure that they are executed, at most, once.

#

# It's entirely deliberate that calling these functions can set

# variables that don't obey the namespace limitations obeyed by the rest

# of this file, in order that that they be as useful as possible to

# callers.

# require_term_colors

# -------------------

# Allow display of bold text on terminals that support it.

require_term_colors=func_require_term_colors

func_require_term_colors ()

{

    $debug_cmd

    test -t 1 && {

      # COLORTERM and USE_ANSI_COLORS environment variables take

      # precedence, because most terminfo databases neglect to describe

      # whether color sequences are supported.

      test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}

      if test 1 = "$USE_ANSI_COLORS"; then

        # Standard ANSI escape sequences

        tc_reset='?[0m'

        tc_bold='?[1m';   tc_standout='?[7m'

        tc_red='?[31m';   tc_green='?[32m'

        tc_blue='?[34m';  tc_cyan='?[36m'

      else

        # Otherwise trust the terminfo database after all.

        test -n "`tput sgr0 2>/dev/null`" && {

          tc_reset=`tput sgr0`

          test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`

          tc_standout=$tc_bold

          test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`

          test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`

          test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`

          test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`

          test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`

        }

      fi

    }

    require_term_colors=:

}

# require_rockspecs_req

# ---------------------

# Remove rockspecs from $buildreq, and add them to $rockspecs_req.

require_rockspecs_req=slingshot_require_rockspecs_req

slingshot_require_rockspecs_req ()

{

    $debug_cmd

    test -n "$rockspecs_req" || {

      _G_non_rockspecs=

      set dummy $buildreq; shift

      while test $# -gt 2; do

        case $3 in

          *.rockspec)

            func_append rockspecs_req " $1 $2 $3"

            ;;

          [a-z]*://*)

            func_append _G_non_rockspecs " $1 $2 $3"

            ;;

	  *) func_fatal_error "\

'$3' from the buildreq table in

'bootstrap.conf' does not look like the URL for downloading

$1. Please ensure that buildreq is a strict newline

delimited list of triples; 'program min-version url'."

            ;;

        esac

	shift; shift; shift

      done

      buildreq=$_G_non_rockspecs

    }

    require_rockspecs_req=:

}

# require_slingshot_dotgitmodules

# -------------------------------

# Ensure we have a '.gitmodules' file, with appropriate 'slingshot' settings.

require_slingshot_dotgitmodules=slingshot_require_slingshot_dotgitmodules

slingshot_require_slingshot_dotgitmodules ()

{

    $debug_cmd

    $require_git

    test true = "$GIT" || {

      # A slingshot entry in .gitmodules always takes precedence.

      _G_path=`$GIT config --file .gitmodules submodule.slingshot.path 2>/dev/null`

      test -n "$_G_path" || {

        $require_vc_ignore_files

        func_verbose "adding slingshot entries to '.gitmodules'"

        test -n "$slingshot_path" || slingshot_path=slingshot

        test -n "$slingshot_url"  || slingshot_url=git://github.com/gvvaughan/slingshot.git

        {

          echo '[submodule "slingshot"]'

          echo "	path=$slingshot_path"

          echo "	url=$slingshot_url"

        } >> .gitmodules

        test -n "$vc_ignore_files" \

          || func_insert_if_absent ".gitmodules" $vc_ignore_files

      }

    }

    require_slingshot_dotgitmodules=:

}

# require_slingshot_path

# require_slingshot_url

# ----------------------

# Ensure 'slingshot_path' and 'slingshot_url' are set.

require_slingshot_path=slingshot_require_slingshot_dotgitmodules_parameters

require_slingshot_url=slingshot_require_slingshot_dotgitmodules_parameters

slingshot_require_slingshot_dotgitmodules_parameters ()

{

    $debug_cmd

    $require_git

    $require_slingshot_dotgitmodules

    test -f .gitmodules \

      || func_fatal_error "Unable to update '.gitmodules' with slingshot submodule"

    test true = "$GIT" || {

      slingshot_path=`$GIT config --file=.gitmodules --get submodule.slingshot.path`

      slingshot_url=`$GIT config --file=.gitmodules --get submodule.slingshot.url`

      func_verbose "slingshot_path='$slingshot_path'"

      func_verbose "slingshot_url='$slingshot_url'"

    }

    require_slingshot_path=:

    require_slingshot_url=:

}

# require_slingshot_submodule

# ---------------------------

# Ensure that there is a current slingshot submodule.

require_slingshot_submodule=slingshot_require_slingshot_submodule

slingshot_require_slingshot_submodule ()

{

    $debug_cmd

    $require_git

    if test true = "$GIT"; then

      func_warning recommend \

          "No 'git' found; imported slingshot modules may be missing."

    else

      $require_slingshot_dotgitmodules

      if test -f .gitmodules; then

        $require_slingshot_path

        $require_slingshot_url

        if test -f "slingshot/src/mkrockspecs.in"; then

          : All present and correct.

        else

          trap slingshot_cleanup 1 2 13 15

          shallow=

          $GIT clone -h 2>&1 |func_grep_q -- --depth \

              && shallow='--depth 365'

          func_show_eval "$GIT clone $shallow '$slingshot_url' '$slingshot_path'" \

            slingshot_cleanup

          # FIXME: Solaris /bin/sh will try to execute '-' if any of

          #        these signals are caught after this.

          trap - 1 2 13 15

        fi

        # Make sure we've checked out the correct revision of slingshot.

        func_show_eval "$GIT submodule init -- $slingshot_path" \

          && func_show_eval "$GIT submodule update -- $slingshot_path" \

          || func_fatal_error "Unable to update slingshot submodule."

      fi

    fi

    require_slingshot_submodule=:

}

# require_bootstrap_uptodate

# --------------------------

# Complain if the version of bootstrap in the build-aux directory differs

# from the one we are running.

require_bootstrap_uptodate=slingshot_require_bootstrap_uptodate

slingshot_require_bootstrap_uptodate ()

{

    $debug_cmd

    $require_slingshot_submodule

    _G_slingshot_bootstrap=slingshot/bootstrap

    rm -f $progname.new

    if test -f "$_G_slingshot_bootstrap"; then

      if func_cmp_s "$progpath" "$_G_slingshot_bootstrap"; then

	func_verbose "bootstrap script up to date"

      else

        cp -f $_G_slingshot_bootstrap $progname.new

        func_warning upgrade "\

An updated slingshot bootstrap script is ready for you in

'$progname.new'.  After you've verified that you want the

changes, you can update with:

    mv -f $progname.new $progname