--- /dev/null
+#! /bin/sh
+## DO NOT EDIT - This file generated from build-aux/bootstrap.in
+## by inline-source v2016-02-21.11
+
+# Bootstrap an Autotooled package from checked-out sources.
+# Written by Gary V. Vaughan, 2010
+# Inspired by a script written by Paul Eggert.
+
+# This is free software. There is NO warranty; not even for
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Copyright (C) 2010-2017 Bootstrap Authors
+#
+# This file is dual licensed under the terms of the MIT license
+# <https://opensource.org/license/MIT>, and GPL version 3 or later
+# <http://www.gnu.org/licenses/gpl-2.0.html>. You must apply one of
+# these licenses when using or redistributing this software or any of
+# the files within it. See the URLs above, or the file `LICENSE`
+# included in the Bootstrap distribution for the full license texts.
+
+# You should place a copy of this script 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.
+
+# Please report bugs or propose patches to:
+# <https://github.com/gnulib-modules/bootstrap/issues>
+
+
+## ------ ##
+## 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
+
+
+## -------------- ##
+## 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_path=
+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=
+
+
+## ------------------- ##
+## External Libraries. ##
+## ------------------- ##
+
+# Source required external libraries:
+# Set a version string for this script.
+scriptversion=2017-04-19.12; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# This is free software. There is NO warranty; not even for
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Copyright (C) 2004-2017 Bootstrap Authors
+#
+# This file is dual licensed under the terms of the MIT license
+# <https://opensource.org/license/MIT>, and GPL version 3 or later
+# <http://www.gnu.org/licenses/gpl-2.0.html>. You must apply one of
+# these licenses when using or redistributing this software or any of
+# the files within it. See the URLs above, or the file `LICENSE`
+# included in the Bootstrap distribution for the full license texts.
+
+# Please report bugs or propose patches to:
+# <https://github.com/gnulib-modules/bootstrap/issues>
+
+
+## ------ ##
+## 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=\"$_G_var=C; \$_G_safe_locale\"
+ fi"
+done
+
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$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
+
+
+# func_unset VAR
+# --------------
+# Portably unset VAR.
+# In some shells, an 'unset VAR' statement leaves a non-zero return
+# status if VAR is already unset, which might be problematic if the
+# statement is used at the end of a function (thus poisoning its return
+# value) or when 'set -e' is active (causing even a spurious abort of
+# the script in this case).
+func_unset ()
+{
+ { eval $1=; (eval unset $1) >/dev/null 2>&1 && eval unset $1 || : ; }
+}
+
+
+# Make sure CDPATH doesn't cause `cd` commands to output the target dir.
+func_unset CDPATH
+
+# Make sure ${,E,F}GREP behave sanely.
+func_unset GREP_OPTIONS
+
+
+## ------------------------- ##
+## 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='\e[0m'
+ tc_bold='\e[1m'; tc_standout='\e[7m'
+ tc_red='\e[31m'; tc_green='\e[32m'
+ tc_blue='\e[34m'; tc_cyan='\e[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=$tc_bold
+ test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+ test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+ test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+ test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+ test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+ }
+ fi
+ }
+
+ require_term_colors=:
+}
+
+
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+ # We should try to minimise forks, especially on Windows where they are
+ # unreasonably slow, so skip the feature probes when bash or zsh are
+ # being used:
+ if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+ : ${_G_HAVE_ARITH_OP="yes"}
+ : ${_G_HAVE_XSI_OPS="yes"}
+ # The += operator was introduced in bash 3.1
+ case $BASH_VERSION in
+ [12].* | 3.0 | 3.0*) ;;
+ *)
+ : ${_G_HAVE_PLUSEQ_OP="yes"}
+ ;;
+ esac
+ fi
+
+ # _G_HAVE_PLUSEQ_OP
+ # Can be empty, in which case the shell is probed, "yes" if += is
+ # useable or anything else if it does not work.
+ test -z "$_G_HAVE_PLUSEQ_OP" \
+ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+ && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_append ()
+ {
+ $debug_cmd
+
+ eval "$1+=\$2"
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_append ()
+ {
+ $debug_cmd
+
+ eval "$1=\$$1\$2"
+ }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+ eval 'func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_arg pretty "$2"
+ eval "$1+=\\ \$func_quote_arg_result"
+ }'
+else
+ func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_arg pretty "$2"
+ eval "$1=\$$1\\ \$func_quote_arg_result"
+ }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE. For example:
+#
+# func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+ $debug_cmd
+
+ eval _G_current_value='`$ECHO $'$1'`'
+ _G_delim=`expr "$2" : '\(.\)'`
+
+ case $_G_delim$_G_current_value$_G_delim in
+ *"$2$_G_delim"*) ;;
+ *) func_append "$@" ;;
+ esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+ test -z "$_G_HAVE_ARITH_OP" \
+ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+ && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+ eval 'func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=$(( $* ))
+ }'
+else
+ func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=`expr "$@"`
+ }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ # If this shell supports suffix pattern removal, then use it to avoid
+ # forking. Hide the definitions single quotes in case the shell chokes
+ # on unsupported syntax...
+ _b='func_basename_result=${1##*/}'
+ _d='case $1 in
+ */*) func_dirname_result=${1%/*}$2 ;;
+ * ) func_dirname_result=$3 ;;
+ esac'
+
+else
+ # ...otherwise fall back to using sed.
+ _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+ _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
+ if test "X$func_dirname_result" = "X$1"; then
+ func_dirname_result=$3
+ else
+ func_append func_dirname_result "$2"
+ fi'
+fi
+
+eval 'func_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE. If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+ $debug_cmd
+
+ '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+# dirname: Compute the dirname of FILE. If nonempty,
+# add APPEND to the result, otherwise set result
+# to NONDIR_REPLACEMENT.
+# value returned in "$func_dirname_result"
+# basename: Compute filename of FILE.
+# value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+ '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+ $debug_cmd
+
+ _G_message=$*
+
+ func_echo_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_IFS
+ $ECHO "$progname: $_G_line"
+ done
+ IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+ $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ _G_infix=$1; shift
+ _G_indent=$_G_infix
+ _G_prefix="$progname: $_G_infix: "
+ _G_message=$*
+
+ # Strip color escape sequences before counting printable length
+ for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+ do
+ test -n "$_G_tc" && {
+ _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+ _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+ }
+ done
+ _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
+
+ func_echo_infix_1_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_infix_1_IFS
+ $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+ _G_prefix=$_G_indent
+ done
+ IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+ $debug_cmd
+
+ func_error "$*"
+ exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+ $debug_cmd
+
+ $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+ test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=${#1}
+ }'
+else
+ func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+ }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+ $debug_cmd
+
+ _G_directory_path=$1
+ _G_dir_list=
+
+ if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+ # Protect directory names starting with '-'
+ case $_G_directory_path in
+ -*) _G_directory_path=./$_G_directory_path ;;
+ esac
+
+ # While some portion of DIR does not yet exist...
+ while test ! -d "$_G_directory_path"; do
+ # ...make a list in topmost first order. Use a colon delimited
+ # list incase some portion of path contains whitespace.
+ _G_dir_list=$_G_directory_path:$_G_dir_list
+
+ # If the last portion added has no slash in it, the list is done
+ case $_G_directory_path in */*) ;; *) break ;; esac
+
+ # ...otherwise throw away the child directory and loop
+ _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+ done
+ _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+
+ func_mkdir_p_IFS=$IFS; IFS=:
+ for _G_dir in $_G_dir_list; do
+ IFS=$func_mkdir_p_IFS
+ # mkdir can fail with a 'File exist' error if two processes
+ # try to create one of the directories concurrently. Don't
+ # stop in that case!
+ $MKDIR "$_G_dir" 2>/dev/null || :
+ done
+ IFS=$func_mkdir_p_IFS
+
+ # Bail out if we (or some other process) failed to create a directory.
+ test -d "$_G_directory_path" || \
+ func_fatal_error "Failed to create '$1'"
+ fi
+}
+
+
+# func_mktempdir [BASENAME]
+# -------------------------
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible. If
+# given, BASENAME is the basename for that directory.
+func_mktempdir ()
+{
+ $debug_cmd
+
+ _G_template=${TMPDIR-/tmp}/${1-$progname}
+
+ if test : = "$opt_dry_run"; then
+ # Return a directory name, but don't create it in dry-run mode
+ _G_tmpdir=$_G_template-$$
+ else
+
+ # If mktemp works, use that first and foremost
+ _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+
+ if test ! -d "$_G_tmpdir"; then
+ # Failing that, at least try and use $RANDOM to avoid a race
+ _G_tmpdir=$_G_template-${RANDOM-0}$$
+
+ func_mktempdir_umask=`umask`
+ umask 0077
+ $MKDIR "$_G_tmpdir"
+ umask $func_mktempdir_umask
+ fi
+
+ # If we're not in dry-run mode, bomb out on failure
+ test -d "$_G_tmpdir" || \
+ func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+ fi
+
+ $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+ $debug_cmd
+
+ # These SED scripts presuppose an absolute path with a trailing slash.
+ _G_pathcar='s|^/\([^/]*\).*$|\1|'
+ _G_pathcdr='s|^/[^/]*||'
+ _G_removedotparts=':dotsl
+ s|/\./|/|g
+ t dotsl
+ s|/\.$|/|'
+ _G_collapseslashes='s|/\{1,\}|/|g'
+ _G_finalslash='s|/*$|/|'
+
+ # Start from root dir and reassemble the path.
+ func_normal_abspath_result=
+ func_normal_abspath_tpath=$1
+ func_normal_abspath_altnamespace=
+ case $func_normal_abspath_tpath in
+ "")
+ # Empty path, that just means $cwd.
+ func_stripname '' '/' "`pwd`"
+ func_normal_abspath_result=$func_stripname_result
+ return
+ ;;
+ # The next three entries are used to spot a run of precisely
+ # two leading slashes without using negated character classes;
+ # we take advantage of case's first-match behaviour.
+ ///*)
+ # Unusual form of absolute path, do nothing.
+ ;;
+ //*)
+ # Not necessarily an ordinary path; POSIX reserves leading '//'
+ # and for example Cygwin uses it to access remote file shares
+ # over CIFS/SMB, so we conserve a leading double slash if found.
+ func_normal_abspath_altnamespace=/
+ ;;
+ /*)
+ # Absolute path, do nothing.
+ ;;
+ *)
+ # Relative path, prepend $cwd.
+ func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+ ;;
+ esac
+
+ # Cancel out all the simple stuff to save iterations. We also want
+ # the path to end with a slash for ease of parsing, so make sure
+ # there is one (and only one) here.
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+ while :; do
+ # Processed it all yet?
+ if test / = "$func_normal_abspath_tpath"; then
+ # If we ascended to the root using ".." the result may be empty now.
+ if test -z "$func_normal_abspath_result"; then
+ func_normal_abspath_result=/
+ fi
+ break
+ fi
+ func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcar"`
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcdr"`
+ # Figure out what to do with it
+ case $func_normal_abspath_tcomponent in
+ "")
+ # Trailing empty path component, ignore it.
+ ;;
+ ..)
+ # Parent dir; strip last assembled component from result.
+ func_dirname "$func_normal_abspath_result"
+ func_normal_abspath_result=$func_dirname_result
+ ;;
+ *)
+ # Actual path component, append it.
+ func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+ ;;
+ esac
+ done
+ # Restore leading double-slash if one was found on entry.
+ func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+ $debug_cmd
+
+ $opt_quiet || func_echo ${1+"$@"}
+
+ # A bug in bash halts the script if the last line of a function
+ # fails when set -e is in force, so we need another command to
+ # work around that:
+ :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+ $debug_cmd
+
+ func_relative_path_result=
+ func_normal_abspath "$1"
+ func_relative_path_tlibdir=$func_normal_abspath_result
+ func_normal_abspath "$2"
+ func_relative_path_tbindir=$func_normal_abspath_result
+
+ # Ascend the tree starting from libdir
+ while :; do
+ # check if we have found a prefix of bindir
+ case $func_relative_path_tbindir in
+ $func_relative_path_tlibdir)
+ # found an exact match
+ func_relative_path_tcancelled=
+ break
+ ;;
+ $func_relative_path_tlibdir*)
+ # found a matching prefix
+ func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+ func_relative_path_tcancelled=$func_stripname_result
+ if test -z "$func_relative_path_result"; then
+ func_relative_path_result=.
+ fi
+ break
+ ;;
+ *)
+ func_dirname $func_relative_path_tlibdir
+ func_relative_path_tlibdir=$func_dirname_result
+ if test -z "$func_relative_path_tlibdir"; then
+ # Have to descend all the way to the root!
+ func_relative_path_result=../$func_relative_path_result
+ func_relative_path_tcancelled=$func_relative_path_tbindir
+ break
+ fi
+ func_relative_path_result=../$func_relative_path_result
+ ;;
+ esac
+ done
+
+ # Now calculate path; take care to avoid doubling-up slashes.
+ func_stripname '' '/' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
+ func_stripname '/' '/' "$func_relative_path_tcancelled"
+ if test -n "$func_stripname_result"; then
+ func_append func_relative_path_result "/$func_stripname_result"
+ fi
+
+ # Normalisation. If bindir is libdir, return '.' else relative path.
+ if test -n "$func_relative_path_result"; then
+ func_stripname './' '' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
+ fi
+
+ test -n "$func_relative_path_result" || func_relative_path_result=.
+
+ :
+}
+
+
+# func_quote_portable EVAL ARG
+# ----------------------------
+# Internal function to portably implement func_quote_arg. Note that we still
+# keep attention to performance here so we as much as possible try to avoid
+# calling sed binary (so far O(N) complexity as long as func_append is O(1)).
+func_quote_portable ()
+{
+ $debug_cmd
+
+ func_quote_portable_result=$2
+
+ # one-time-loop (easy break)
+ while true
+ do
+ if $1; then
+ func_quote_portable_result=`$ECHO "$2" | $SED \
+ -e "$sed_double_quote_subst" -e "$sed_double_backslash"`
+ break
+ fi
+
+ # Quote for eval.
+ case $func_quote_portable_result in
+ *[\\\`\"\$]*)
+ case $func_quote_portable_result in
+ *[\[\*\?]*)
+ func_quote_portable_result=`$ECHO "$func_quote_portable_result" \
+ | $SED "$sed_quote_subst"`
+ break
+ ;;
+ esac
+
+ func_quote_portable_old_IFS=$IFS
+ for _G_char in '\' '`' '"' '$'
+ do
+ # STATE($1) PREV($2) SEPARATOR($3)
+ set start "" ""
+ func_quote_portable_result=dummy"$_G_char$func_quote_portable_result$_G_char"dummy
+ IFS=$_G_char
+ for _G_part in $func_quote_portable_result
+ do
+ case $1 in
+ quote)
+ func_append func_quote_portable_result "$3$2"
+ set quote "$_G_part" "\\$_G_char"
+ ;;
+ start)
+ set first "" ""
+ func_quote_portable_result=
+ ;;
+ first)
+ set quote "$_G_part" ""
+ ;;
+ esac
+ done
+ done
+ IFS=$func_quote_portable_old_IFS
+ ;;
+ *) ;;
+ esac
+ break
+ done
+
+ func_quote_portable_unquoted_result=$func_quote_portable_result
+ case $func_quote_portable_result in
+ # double-quote args containing shell metacharacters to delay
+ # word splitting, command substitution and variable expansion
+ # for a subsequent eval.
+ # many bourne shells cannot handle close brackets correctly
+ # in scan sets, so we specify it separately.
+ *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
+ func_quote_portable_result=\"$func_quote_portable_result\"
+ ;;
+ esac
+}
+
+
+# func_quotefast_eval ARG
+# -----------------------
+# Quote one ARG (internal). This is equivalent to 'func_quote_arg eval ARG',
+# but optimized for speed. Result is stored in $func_quotefast_eval.
+if test xyes = `(x=; printf -v x %q yes; echo x"$x") 2>/dev/null`; then
+ printf -v _GL_test_printf_tilde %q '~'
+ if test '\~' = "$_GL_test_printf_tilde"; then
+ func_quotefast_eval ()
+ {
+ printf -v func_quotefast_eval_result %q "$1"
+ }
+ else
+ # Broken older Bash implementations. Make those faster too if possible.
+ func_quotefast_eval ()
+ {
+ case $1 in
+ '~'*)
+ func_quote_portable false "$1"
+ func_quotefast_eval_result=$func_quote_portable_result
+ ;;
+ *)
+ printf -v func_quotefast_eval_result %q "$1"
+ ;;
+ esac
+ }
+ fi
+else
+ func_quotefast_eval ()
+ {
+ func_quote_portable false "$1"
+ func_quotefast_eval_result=$func_quote_portable_result
+ }
+fi
+
+
+# func_quote_arg MODEs ARG
+# ------------------------
+# Quote one ARG to be evaled later. MODEs argument may contain zero or more
+# specifiers listed below separated by ',' character. This function returns two
+# values:
+# i) func_quote_arg_result
+# double-quoted (when needed), suitable for a subsequent eval
+# ii) func_quote_arg_unquoted_result
+# has all characters that are still active within double
+# quotes backslashified. Available only if 'unquoted' is specified.
+#
+# Available modes:
+# ----------------
+# 'eval' (default)
+# - escape shell special characters
+# 'expand'
+# - the same as 'eval'; but do not quote variable references
+# 'pretty'
+# - request aesthetic output, i.e. '"a b"' instead of 'a\ b'. This might
+# be used later in func_quote to get output like: 'echo "a b"' instead
+# of 'echo a\ b'. This is slower than default on some shells.
+# 'unquoted'
+# - produce also $func_quote_arg_unquoted_result which does not contain
+# wrapping double-quotes.
+#
+# Examples for 'func_quote_arg pretty,unquoted string':
+#
+# string | *_result | *_unquoted_result
+# ------------+-----------------------+-------------------
+# " | \" | \"
+# a b | "a b" | a b
+# "a b" | "\"a b\"" | \"a b\"
+# * | "*" | *
+# z="${x-$y}" | "z=\"\${x-\$y}\"" | z=\"\${x-\$y}\"
+#
+# Examples for 'func_quote_arg pretty,unquoted,expand string':
+#
+# string | *_result | *_unquoted_result
+# --------------+---------------------+--------------------
+# z="${x-$y}" | "z=\"${x-$y}\"" | z=\"${x-$y}\"
+func_quote_arg ()
+{
+ _G_quote_expand=false
+ case ,$1, in
+ *,expand,*)
+ _G_quote_expand=:
+ ;;
+ esac
+
+ case ,$1, in
+ *,pretty,*|*,expand,*|*,unquoted,*)
+ func_quote_portable $_G_quote_expand "$2"
+ func_quote_arg_result=$func_quote_portable_result
+ func_quote_arg_unquoted_result=$func_quote_portable_unquoted_result
+ ;;
+ *)
+ # Faster quote-for-eval for some shells.
+ func_quotefast_eval "$2"
+ func_quote_arg_result=$func_quotefast_eval_result
+ ;;
+ esac
+}
+
+
+# func_quote MODEs ARGs...
+# ------------------------
+# Quote all ARGs to be evaled later and join them into single command. See
+# func_quote_arg's description for more info.
+func_quote ()
+{
+ $debug_cmd
+ _G_func_quote_mode=$1 ; shift
+ func_quote_result=
+ while test 0 -lt $#; do
+ func_quote_arg "$_G_func_quote_mode" "$1"
+ if test -n "$func_quote_result"; then
+ func_append func_quote_result " $func_quote_arg_result"
+ else
+ func_append func_quote_result "$func_quote_arg_result"
+ fi
+ shift
+ done
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_stripname ()
+ {
+ $debug_cmd
+
+ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+ # positional parameters, so assign one to ordinary variable first.
+ func_stripname_result=$3
+ func_stripname_result=${func_stripname_result#"$1"}
+ func_stripname_result=${func_stripname_result%"$2"}
+ }'
+else
+ func_stripname ()
+ {
+ $debug_cmd
+
+ case $2 in
+ .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+ *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+ esac
+ }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ func_quote_arg pretty,expand "$_G_cmd"
+ eval "func_notquiet $func_quote_arg_result"
+
+ $opt_dry_run || {
+ eval "$_G_cmd"
+ _G_status=$?
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it. Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ $opt_quiet || {
+ func_quote_arg expand,pretty "$_G_cmd"
+ eval "func_echo $func_quote_arg_result"
+ }
+
+ $opt_dry_run || {
+ eval "$_G_user_locale
+ $_G_cmd"
+ _G_status=$?
+ eval "$_G_safe_locale"
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result. All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+ $debug_cmd
+
+ case $1 in
+ [0-9]* | *[!a-zA-Z0-9_]*)
+ func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+ ;;
+ * )
+ func_tr_sh_result=$1
+ ;;
+ esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+ $debug_cmd
+
+ $opt_verbose && func_echo "$*"
+
+ :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+ $debug_cmd
+
+ # CATEGORY must be in the warning_categories list!
+ case " $warning_categories " in
+ *" $1 "*) ;;
+ *) func_internal_error "invalid warning category '$1'" ;;
+ esac
+
+ _G_category=$1
+ shift
+
+ case " $opt_warning_types " in
+ *" $_G_category "*) $warning_func ${1+"$@"} ;;
+ esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+ $debug_cmd
+
+ printf '%s\n%s\n' "$1" "$2" \
+ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false. Use it like this:
+#
+# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+ $debug_cmd
+
+ test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# This is free software. There is NO warranty; not even for
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Copyright (C) 2010-2017 Bootstrap Authors
+#
+# This file is dual licensed under the terms of the MIT license
+# <https://opensource.org/license/MIT>, and GPL version 3 or later
+# <http://www.gnu.org/licenses/gpl-2.0.html>. You must apply one of
+# these licenses when using or redistributing this software or any of
+# the files within it. See the URLs above, or the file `LICENSE`
+# included in the Bootstrap distribution for the full license texts.
+
+# Please report bugs or propose patches to:
+# <https://github.com/gnulib-modules/bootstrap/issues>
+
+# Set a version string for this script.
+scriptversion=2016-03-06.01; # UTC
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+# #!/bin/sh
+# . relative/path/to/funclib.sh
+# . relative/path/to/options-parser
+# scriptversion=1.0
+# func_options ${1+"$@"}
+# eval set dummy "$func_options_result"; shift
+# ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# Copyright'.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug in processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'. Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+ --debug enable verbose shell tracing
+ -W, --warnings=CATEGORY
+ report the warnings falling in CATEGORY [all]
+ -v, --verbose verbosely report processing
+ --version print version information and exit
+ -h, --help print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+ 'all' show all warnings
+ 'none' turn off all the warnings
+ 'error' warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# in the main code. A hook is just a list of function names that can be
+# run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+ $debug_cmd
+
+ func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not accept hook functions." ;;
+ esac
+
+ eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of hook functions to be called by
+# FUNC_NAME.
+func_remove_hook ()
+{
+ $debug_cmd
+
+ eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_propagate_result FUNC_NAME_A FUNC_NAME_B
+# ---------------------------------------------
+# If the *_result variable of FUNC_NAME_A _is set_, assign its value to
+# *_result variable of FUNC_NAME_B.
+func_propagate_result ()
+{
+ $debug_cmd
+
+ func_propagate_result_result=:
+ if eval "test \"\${${1}_result+set}\" = set"
+ then
+ eval "${2}_result=\$${1}_result"
+ else
+ func_propagate_result_result=false
+ fi
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It's assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not support hook functions." ;;
+ esac
+
+ eval _G_hook_fns=\$$1_hooks; shift
+
+ for _G_hook in $_G_hook_fns; do
+ func_unset "${_G_hook}_result"
+ eval $_G_hook '${1+"$@"}'
+ func_propagate_result $_G_hook func_run_hooks
+ if $func_propagate_result_result; then
+ eval set dummy "$func_run_hooks_result"; shift
+ fi
+ done
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list from your hook function. You may remove
+# or edit any options that you action, and then pass back the remaining
+# unprocessed options in '<hooked_function_name>_result', escaped
+# suitably for 'eval'.
+#
+# The '<hooked_function_name>_result' variable is automatically unset
+# before your hook gets called; for best performance, only set the
+# *_result variable when necessary (i.e. don't call the 'func_quote'
+# function unnecessarily because it can be an expensive operation on some
+# machines).
+#
+# Like this:
+#
+# my_options_prep ()
+# {
+# $debug_cmd
+#
+# # Extend the existing usage message.
+# usage_message=$usage_message'
+# -s, --silent don'\''t print informational messages
+# '
+# # No change in '$@' (ignored completely by this hook). Leave
+# # my_options_prep_result variable intact.
+# }
+# func_add_hook func_options_prep my_options_prep
+#
+#
+# my_silent_option ()
+# {
+# $debug_cmd
+#
+# args_changed=false
+#
+# # Note that, for efficiency, we parse as many options as we can
+# # recognise in a loop before passing the remainder back to the
+# # caller on the first unrecognised argument we encounter.
+# while test $# -gt 0; do
+# opt=$1; shift
+# case $opt in
+# --silent|-s) opt_silent=:
+# args_changed=:
+# ;;
+# # Separate non-argument short options:
+# -s*) func_split_short_opt "$_G_opt"
+# set dummy "$func_split_short_opt_name" \
+# "-$func_split_short_opt_arg" ${1+"$@"}
+# shift
+# args_changed=:
+# ;;
+# *) # Make sure the first unrecognised option "$_G_opt"
+# # is added back to "$@" in case we need it later,
+# # if $args_changed was set to 'true'.
+# set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+# esac
+# done
+#
+# # Only call 'func_quote' here if we processed at least one argument.
+# if $args_changed; then
+# func_quote eval ${1+"$@"}
+# my_silent_option_result=$func_quote_result
+# fi
+# }
+# func_add_hook func_parse_options my_silent_option
+#
+#
+# my_option_validation ()
+# {
+# $debug_cmd
+#
+# $opt_silent && $opt_verbose && func_fatal_help "\
+# '--silent' and '--verbose' options are mutually exclusive."
+# }
+# func_add_hook func_validate_options my_option_validation
+#
+# You'll also need to manually amend $usage_message to reflect the extra
+# options you parse. It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options_finish [ARG]...
+# ----------------------------
+# Finishing the option parse loop (call 'func_options' hooks ATM).
+func_options_finish ()
+{
+ $debug_cmd
+
+ func_run_hooks func_options ${1+"$@"}
+ func_propagate_result func_run_hooks func_options_finish
+}
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+ $debug_cmd
+
+ _G_options_quoted=false
+
+ for my_func in options_prep parse_options validate_options options_finish
+ do
+ func_unset func_${my_func}_result
+ func_unset func_run_hooks_result
+ eval func_$my_func '${1+"$@"}'
+ func_propagate_result func_$my_func func_options
+ if $func_propagate_result_result; then
+ eval set dummy "$func_options_result"; shift
+ _G_options_quoted=:
+ fi
+ done
+
+ $_G_options_quoted || {
+ # As we (func_options) are top-level options-parser function and
+ # nobody quoted "$@" for us yet, we need to do it explicitly for
+ # caller.
+ func_quote eval ${1+"$@"}
+ func_options_result=$func_quote_result
+ }
+}
+
+
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters. If a hook function modifies that list, and
+# needs to propagate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before returning.
+func_hookable func_options_prep
+func_options_prep ()
+{
+ $debug_cmd
+
+ # Option defaults:
+ opt_verbose=false
+ opt_warning_types=
+
+ func_run_hooks func_options_prep ${1+"$@"}
+ func_propagate_result func_run_hooks func_options_prep
+}
+
+
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
+{
+ $debug_cmd
+
+ _G_parse_options_requote=false
+ # this just eases exit handling
+ while test $# -gt 0; do
+ # Defer to hook functions for initial option parsing, so they
+ # get priority in the event of reusing an option name.
+ func_run_hooks func_parse_options ${1+"$@"}
+ func_propagate_result func_run_hooks func_parse_options
+ if $func_propagate_result_result; then
+ eval set dummy "$func_parse_options_result"; shift
+ # Even though we may have changed "$@", we passed the "$@" array
+ # down into the hook and it quoted it for us (because we are in
+ # this if-branch). No need to quote it again.
+ _G_parse_options_requote=false
+ fi
+
+ # Break out of the loop if we already parsed every option.
+ test $# -gt 0 || break
+
+ # We expect that one of the options parsed in this function matches
+ # and thus we remove _G_opt from "$@" and need to re-quote.
+ _G_match_parse_options=:
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --debug|-x) debug_cmd='set -x'
+ func_echo "enabling shell trace mode" >&2
+ $debug_cmd
+ ;;
+
+ --no-warnings|--no-warning|--no-warn)
+ set dummy --warnings none ${1+"$@"}
+ shift
+ ;;
+
+ --warnings|--warning|-W)
+ if test $# = 0 && func_missing_arg $_G_opt; then
+ _G_parse_options_requote=:
+ break
+ fi
+ case " $warning_categories $1" in
+ *" $1 "*)
+ # trailing space prevents matching last $1 above
+ func_append_uniq opt_warning_types " $1"
+ ;;
+ *all)
+ opt_warning_types=$warning_categories
+ ;;
+ *none)
+ opt_warning_types=none
+ warning_func=:
+ ;;
+ *error)
+ opt_warning_types=$warning_categories
+ warning_func=func_fatal_error
+ ;;
+ *)
+ func_fatal_error \
+ "unsupported warning category: '$1'"
+ ;;
+ esac
+ shift
+ ;;
+
+ --verbose|-v) opt_verbose=: ;;
+ --version) func_version ;;
+ -\?|-h) func_usage ;;
+ --help) func_help ;;
+
+ # Separate optargs to long options (plugins may need this):
+ --*=*) func_split_equals "$_G_opt"
+ set dummy "$func_split_equals_lhs" \
+ "$func_split_equals_rhs" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate optargs to short options:
+ -W*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate non-argument short options:
+ -\?*|-h*|-v*|-x*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "-$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ --) _G_parse_options_requote=: ; break ;;
+ -*) func_fatal_help "unrecognised option: '$_G_opt'" ;;
+ *) set dummy "$_G_opt" ${1+"$@"}; shift
+ _G_match_parse_options=false
+ break
+ ;;
+ esac
+
+ if $_G_match_parse_options; then
+ _G_parse_options_requote=:
+ fi
+ done
+
+ if $_G_parse_options_requote; then
+ # save modified positional parameters for caller
+ func_quote eval ${1+"$@"}
+ func_parse_options_result=$func_quote_result
+ fi
+}
+
+
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
+{
+ $debug_cmd
+
+ # Display all warnings if -W was not given.
+ test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
+
+ func_run_hooks func_validate_options ${1+"$@"}
+ func_propagate_result func_run_hooks func_validate_options
+
+ # Bail if the options were screwed!
+ $exit_cmd $EXIT_FAILURE
+}
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+ $debug_cmd
+
+ eval \$ECHO \""Usage: $usage"\"
+ eval \$ECHO \""$fatal_help"\"
+ func_error ${1+"$@"}
+ exit $EXIT_FAILURE
+}
+
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
+func_help ()
+{
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "$long_help_message"
+ exit 0
+}
+
+
+# func_missing_arg ARGNAME
+# ------------------------
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+ $debug_cmd
+
+ func_error "Missing argument for '$1'."
+ exit_cmd=exit
+}
+
+
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables
+# after splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=${1%%=*}
+ func_split_equals_rhs=${1#*=}
+ if test "x$func_split_equals_lhs" = "x$1"; then
+ func_split_equals_rhs=
+ fi
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+ func_split_equals_rhs=
+ test "x$func_split_equals_lhs" = "x$1" \
+ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+ }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_arg=${1#??}
+ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+ func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+ }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+ exit 0
+}
+
+
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
+{
+ $debug_cmd
+
+ eval \$ECHO \""Usage: $usage"\"
+ echo
+ $SED -n 's|^# ||
+ /^Written by/{
+ x;p;x
+ }
+ h
+ /^Written by/q' < "$progpath"
+ echo
+ eval \$ECHO \""$usage_message"\"
+}
+
+
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+# The version message is extracted from the calling file's header
+# comments, with leading '# ' stripped:
+# 1. First display the progname and version
+# 2. Followed by the header comment line matching /^# Written by /
+# 3. Then a blank line followed by the first following line matching
+# /^# Copyright /
+# 4. Immediately followed by any lines between the previous matches,
+# except lines preceding the intervening completely blank line.
+# For example, see the header comments of this file.
+func_version ()
+{
+ $debug_cmd
+
+ printf '%s\n' "$progname $scriptversion"
+ $SED -n '
+ /^# Written by /!b
+ s|^# ||; p; n
+
+ :fwd2blnk
+ /./ {
+ n
+ b fwd2blnk
+ }
+ p; n
+
+ :holdwrnt
+ s|^# ||
+ s|^# *$||
+ /^Copyright /!{
+ /./H
+ n
+ b holdwrnt
+ }
+
+ s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+ G
+ s|\(\n\)\n*|\1|g
+ p; q' < "$progpath"
+
+ exit $?
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Extract macro arguments from autotools input with GNU M4.
+# Written by Gary V. Vaughan, 2010
+#
+# This is free software. There is NO warranty; not even for
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Copyright (C) 2010-2017 Bootstrap Authors
+#
+# This file is dual licensed under the terms of the MIT license
+# <https://opensource.org/license/MIT>, and GPL version 3 or later
+# <http://www.gnu.org/licenses/gpl-2.0.html>. You must apply one of
+# these licenses when using or redistributing this software or any of
+# the files within it. See the URLs above, or the file `LICENSE`
+# included in the Bootstrap distribution for the full license texts.
+
+# Please report bugs or propose patches to:
+# <https://github.com/gnulib-modules/bootstrap/issues>
+
+# Make sure we've evaluated scripts we depend on.
+test -z "$progpath" && . `echo "$0" |${SED-sed} 's|[^/]*$||'`/funclib.sh
+test extract-trace = "$progname" && . `echo "$0" |${SED-sed} 's|[^/]*$||'`/options-parser
+
+# Set a version string.
+scriptversion=2016-02-22.14; # UTC
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './extract-trace --help' for help with using this script from the
+# command line.
+#
+# Or source first 'options-parser' and then this file into your own
+# scripts in order to make use of the function and variable framework
+# they define, and also to avoid the overhead of forking to run this
+# script in its own process on every call.
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of
+# 'extract-trace'.
+
+
+# func_autoconf_configure MAYBE-CONFIGURE-FILE
+# --------------------------------------------
+# Ensure that MAYBE-CONFIGURE-FILE is the name of a file in the current
+# directory that contains an uncommented call to AC_INIT.
+func_autoconf_configure ()
+{
+ $debug_cmd
+
+ _G_sed_no_comment='
+ s|#.*$||
+ s|^dnl .*$||
+ s| dnl .*$||'
+ _G_ac_init=
+
+ # If we were passed a genuine file, make sure it calls AC_INIT.
+ test -f "$1" \
+ && _G_ac_init=`$SED "$_G_sed_no_comment" "$1" |$GREP AC_INIT`
+
+ # Otherwise it is not a genuine Autoconf input file.
+ test -n "$_G_ac_init"
+ _G_status=$?
+
+ test 0 -ne "$_G_status" \
+ && func_verbose "'$1' not using Autoconf"
+
+ (exit $_G_status)
+}
+
+
+# func_tool_version_output CMD [FATAL-ERROR-MSG]
+# ----------------------------------------------
+# Attempt to run 'CMD --version', discarding errors. The output can be
+# ignored by redirecting stdout, and this function used simply to test
+# whether the command exists and exits normally when passed a
+# '--version' argument.
+# When FATAL-ERROR-MSG is given, then this function will display the
+# message and exit if running 'CMD --version' returns a non-zero exit
+# status.
+func_tool_version_output ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fatal_error_msg=$2
+
+ # Some tools, like 'git2cl' produce thousands of lines of output
+ # unless stdin is /dev/null - in that case we want to return
+ # successfully without saving all of that output. Other tools,
+ # such as 'help2man' exit with a non-zero status when stdin comes
+ # from /dev/null, so we re-execute without /dev/null if that
+ # happens. This means that occasionally, the output from both calls
+ # ends up in the result, but the alternative would be to discard the
+ # output from one call, and hope the other produces something useful.
+ { $_G_cmd --version </dev/null || $_G_cmd --version; } 2>/dev/null
+ _G_status=$?
+
+ test 0 -ne "$_G_status" && test -n "$_G_fatal_error_msg" \
+ && func_fatal_error "$_G_fatal_error_msg"
+
+ (exit $_G_status)
+}
+
+
+# func_tool_version_number CMD [FATAL-ERROR-MSG]
+# ----------------------------------------------
+# Pass arguments to func_tool_version_output, but set
+# $func_tool_version_number_result to the last dot delimited digit string
+# on the first line of output.
+func_tool_version_number ()
+{
+ $debug_cmd
+
+ _G_verout=`func_tool_version_output "$@"`
+ _G_status=$?
+
+ # A version number starts with a digit following a space on the first
+ # line of output from `--version`.
+ _G_verout=`echo "$_G_verout" |sed 1q`
+ if test -n "$_G_verout"; then
+ _G_vernum=`expr "$_G_verout" : '.* \([0-9][^ ]*\)'`
+ fi
+
+ if test -n "$_G_vernum"; then
+ printf '%s\n' "$_G_vernum"
+ else
+ printf '%s\n' "$_G_verout"
+ fi
+
+ (exit $_G_status)
+}
+
+
+# func_find_tool ENVVAR NAMES...
+# ------------------------------
+# Search for a required program. Use the value of ENVVAR, if set,
+# otherwise find the first of the NAMES that can be run (i.e.,
+# supports --version). If found, set ENVVAR to the program name,
+# die otherwise.
+func_find_tool ()
+{
+ $debug_cmd
+
+ _G_find_tool_envvar=$1
+ shift
+ _G_find_tool_names=$@
+ eval "_G_find_tool_res=\$$_G_find_tool_envvar"
+ if test -n "$_G_find_tool_res"; then
+ _G_find_tool_error_prefix="\$$find_tool_envvar: "
+ else
+ _G_find_tool_res=
+ _G_bestver=
+ for _G_prog
+ do
+ _G_find_tool_save_IFS=$IFS
+ IFS=${PATH_SEPARATOR-:}
+ for _G_dir in $PATH; do
+ IFS=$_G_find_tool_save_IFS
+ _G_progpath=$_G_dir/$_G_prog
+ test -r "$_G_progpath" && {
+ _G_curver=`func_tool_version_number $_G_progpath`
+ case $_G_bestver,$_G_curver in
+ ,)
+ # first non--version responsive prog sticks!
+ test -n "$_G_progpath" || _G_find_tool_res=$_G_progpath
+ ;;
+ ,*)
+ # first --version responsive prog beats non--version responsive!
+ _G_find_tool_res=$_G_progpath
+ _G_bestver=$_G_curver
+ ;;
+ *,*)
+ # another --version responsive prog must be newer to beat previous one!
+ test "x$_G_curver" = "x$_G_bestver" \
+ || func_lt_ver "$_G_curver" "$_G_bestver" \
+ || {
+ _G_find_tool_res=$_G_progpath
+ _G_bestver=$_G_curver
+ }
+ ;;
+ esac
+ }
+ done
+ IFS=$_G_find_tool_save_IFS
+ done
+ fi
+ if test -n "$_G_find_tool_res"; then
+ func_tool_version_number >/dev/null $_G_find_tool_res "\
+${_G_find_tool_error_prefix}Cannot run '$_G_find_tool_res --version'"
+
+ # Make sure the result is exported to the environment for children
+ # to use.
+ eval "$_G_find_tool_envvar=\$_G_find_tool_res"
+ eval "export $_G_find_tool_envvar"
+ else
+ func_error "\
+One of these is required:
+ $_G_find_tool_names"
+ fi
+}
+
+
+
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
+
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Where a variable already has a non-
+# empty value (as set by the package's 'bootstrap.conf'), that value is
+# used in preference to deriving the default. Call them using their
+# associated 'require_*' variable to ensure that they are executed, at
+# most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
+
+
+# require_configure_ac
+# --------------------
+# Ensure that there is a 'configure.ac' or 'configure.in' file in the
+# current directory that contains an uncommented call to AC_INIT, and
+# that '$configure_ac' contains its name.
+require_configure_ac=func_require_configure_ac
+func_require_configure_ac ()
+{
+ $debug_cmd
+
+ test -z "$configure_ac" \
+ && func_autoconf_configure configure.ac && configure_ac=configure.ac
+ test -z "$configure_ac" \
+ && func_autoconf_configure configure.in && configure_ac=configure.in
+ test -z "$configure_ac" \
+ || func_verbose "found '$configure_ac'"
+
+ require_configure_ac=:
+}
+
+
+# require_gnu_m4
+# --------------
+# Search for GNU M4, and export it in $M4.
+require_gnu_m4=func_require_gnu_m4
+func_require_gnu_m4 ()
+{
+ $debug_cmd
+
+ test -n "$M4" || {
+ # Find the first m4 binary that responds to --version.
+ func_find_tool M4 gm4 gnum4 m4
+ }
+
+ test -n "$M4" || func_fatal_error "\
+Please install GNU M4, or 'export M4=/path/to/gnu/m4'."
+
+ func_verbose "export M4='$M4'"
+
+ # Make sure the search result is visible to subshells
+ export M4
+
+ require_gnu_m4=:
+}
+
+
+## --------------- ##
+## Core functions. ##
+## --------------- ##
+
+# This section contains the high level functions used when calling this
+# file as a script. 'func_extract_trace' is probably the only one that you
+# won't want to replace if you source this file into your own script.
+
+
+# func_extract_trace MACRO_NAMES [FILENAME]...
+# --------------------------------------------
+# set '$func_extract_trace_result' to a colon delimited list of arguments
+# to any of the comma separated list of MACRO_NAMES in FILENAME. If no
+# FILENAME is given, then '$configure_ac' is assumed.
+func_extract_trace ()
+{
+ $debug_cmd
+
+ $require_configure_ac
+ $require_gnu_m4
+
+ _G_m4_traces=`$ECHO "--trace=$1" |$SED 's%,% --trace=%g'`
+ _G_re_macros=`$ECHO "($1)" |$SED 's%,%|%g'`
+ _G_macros="$1"; shift
+ test $# -gt 0 || {
+ set dummy $configure_ac
+ shift
+ }
+
+ # Generate an error if the first file is missing
+ <"$1"
+
+ # Sadly, we can't use 'autom4te' tracing to extract macro arguments,
+ # because it complains about things we want to ignore at bootstrap
+ # time - like missing m4_include files; AC_PREREQ being newer than
+ # the installed autoconf; and returns nothing when tracing
+ # 'AM_INIT_AUTOMAKE' when aclocal hasn't been generated yet.
+ #
+ # The following tries to emulate a less persnickety version of (and
+ # due to not having to wait for Perl startup on every invocation,
+ # it's probably faster too):
+ #
+ # autom4te --language=Autoconf --trace=$my_macro:\$% "$@"
+ #
+ # First we give a minimal set of macro declarations to M4 to prime
+ # it for reading Autoconf macros, while still providing some of the
+ # functionality generally used at m4-time to supply dynamic
+ # arguments to Autocof functions, but without following
+ # 'm4_s?include' files.
+ _G_mini='
+ dnl Initialisation.
+ m4_changequote([,])
+ m4_define([m4_copy], [m4_define([$2], m4_defn([$1]))])
+ m4_define([m4_rename], [m4_copy([$1], [$2])m4_undefine([$1])])
+
+ dnl Replace macros which may abort m4 with a no-op variant.
+ m4_pushdef([m4_assert])
+ m4_pushdef([m4_exit])
+ m4_pushdef([m4_fatal])
+ m4_pushdef([m4_m4exit])
+
+ dnl Replace macros that might break stderr of m4.
+ m4_pushdef([m4_errprint])
+ m4_pushdef([m4_errprintn])
+ m4_pushdef([m4_include])
+ m4_pushdef([m4_warn])
+
+ dnl Avoid side-effects of tracing by extract-trace.
+ m4_pushdef([m4_maketemp])
+ m4_pushdef([m4_mkstemp])
+
+ dnl TODO: reasons for this
+ m4_pushdef([m4_dnl])
+ m4_pushdef([m4_m4wrap])
+
+ dnl Copy and rename macros not handled by "m4 --prefix".
+ m4_define([dnl], [m4_builtin([dnl])])
+ m4_copy([m4_define], [m4_defun])
+ m4_rename([m4_ifelse], [m4_if])
+ m4_rename([m4_patsubst], [m4_bpatsubst])
+ m4_rename([m4_regexp], [m4_bregexp])
+
+ dnl "m4sugar.mini" - useful m4-time macros for dynamic arguments.
+ dnl If we discover packages that need more m4 macros defined in
+ dnl order to bootstrap correctly, add them here:
+ m4_define([m4_bmatch],
+ [m4_if([$#], 0, [], [$#], 1, [], [$#], 2, [$2],
+ [m4_if(m4_bregexp([$1], [$2]), -1,
+ [$0([$1], m4_shift3($@))], [$3])])])
+ m4_define([m4_ifndef], [m4_ifdef([$1], [$3], [$2])])
+ m4_define([m4_ifset],
+ [m4_ifdef([$1], [m4_ifval(m4_defn([$1]), [$2], [$3])], [$3])])
+ m4_define([m4_require], [$1])
+ m4_define([m4_shift3], [m4_shift(m4shift(m4shift($@)))])
+
+ dnl "autoconf.mini" - things from autoconf macros we care about.
+ m4_copy([m4_defun], [AC_DEFUN])
+
+ dnl Dummy definitions for the macros we want to trace.
+ dnl AM_INIT_AUTOMAKE at least produces no trace without this.
+ '
+
+ _G_save=$IFS
+ IFS=,
+ for _G_macro in $_G_macros; do
+ IFS=$_G_save
+ func_append _G_mini "AC_DEFUN([$_G_macro])$nl"
+ done
+ IFS=$_G_save
+
+ # We discard M4's stdout, but the M4 trace output from reading our
+ # "autoconf.mini" followed by any other files passed to this
+ # function is then scanned by sed to transform it into a colon
+ # delimited argument list assigned to a shell variable.
+ _G_transform='s|#.*$||; s|^dnl .*$||; s| dnl .*$||;'
+
+ # Unfortunately, alternation in regexp addresses doesn't work in at
+ # least BSD (and hence Mac OS X) sed, so we have to append a capture
+ # and print block for each traced macro to the sed transform script.
+ _G_save=$IFS
+ IFS=,
+ for _G_macro in $_G_macros; do
+ IFS=$_G_save
+ func_append _G_transform '
+ /^m4trace: -1- '"$_G_macro"'/ {
+ s|^m4trace: -1- '"$_G_macro"'[([]*||
+ s|], [[]|:|g
+ s|[])]*$|:|
+ s|\(.\):$|\1|
+ p
+ }'
+ done
+ IFS=$_G_save
+
+ # Save the command pipeline results for further use by callers of
+ # this function.
+ func_extract_trace_result=`$ECHO "$_G_mini" \
+ |$M4 -daq --prefix $_G_m4_traces - "$@" 2>&1 1>/dev/null \
+ |$SED -n -e "$_G_transform"`
+}
+
+
+# func_extract_trace_first MACRO_NAMES [FILENAME]...
+# --------------------------------------------------
+# Exactly like func_extract_trace, except that only the first argument
+# to the first invocation of one of the comma separated MACRO_NAMES is
+# returned in '$func_extract_trace_first_result'.
+func_extract_trace_first ()
+{
+ $debug_cmd
+
+ func_extract_trace ${1+"$@"}
+ func_extract_trace_first_result=`$ECHO "$func_extract_trace_result" \
+ |$SED -e 's|:.*$||g' -e 1q`
+}
+
+
+# func_main [ARG]...
+# ------------------
+func_main ()
+{
+ $debug_cmd
+
+ # Configuration.
+ usage='$progname MACRO_NAME FILE [...]'
+
+ long_help_message='
+The first argument to this program is the name of an autotools macro
+whose arguments you want to extract by examining the files listed in the
+remaining arguments using the same tool that Autoconf and Automake use,
+GNU M4.
+
+The arguments are returned separated by colons, with each traced call
+on a separate line.'
+
+ # Option processing.
+ func_options "$@"
+ eval set dummy "$func_options_result"; shift
+
+ # Validate remaining non-option arguments.
+ test $# -gt 1 \
+ || func_fatal_help "not enough arguments"
+
+ # Pass non-option arguments to extraction function.
+ func_extract_trace "$@"
+
+ # Display results.
+ test -n "$func_extract_trace_result" \
+ && $ECHO "$func_extract_trace_result"
+
+ # The End.
+ exit $EXIT_SUCCESS
+}
+
+
+## --------------------------- ##
+## Actually perform the trace. ##
+## --------------------------- ##
+
+# Only call 'func_main' if this script was called directly.
+test extract-trace = "$progname" && func_main "$@"
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "20/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+
+# Set a version string for *this* script.
+scriptversion=2017-01-09.18; # UTC
+
+
+## ------------------- ##
+## Hookable functions. ##
+## ------------------- ##
+
+# After 'bootstrap.conf' has been sourced, execution proceeds by calling
+# 'func_bootstrap'. Wherever a function is decorated with
+# 'func_hookable func_name', you will find a matching 'func_run_hooks
+# func_name', which executes all functions added with 'func_add_hook
+# func_name my_func'.
+#
+# You might notice that many of these functions begin with a series of
+# '$require_foo' lines. See the docu-comments at the start of the
+# 'Resource management' section for a description of what these are.
+
+
+# func_bootstrap [ARG]...
+# -----------------------
+# All the functions called inside func_bootstrap are hookable. See the
+# the individual implementations for details.
+func_bootstrap ()
+{
+ $debug_cmd
+
+ # Save the current positional parameters to prevent them being
+ # corrupted by calls to 'set' in 'func_init'.
+ func_quote eval ${1+"$@"}
+ _G_saved_positional_parameters=$func_quote_result
+
+ # Initialisation.
+ func_init
+
+ # Option processing.
+ eval func_options "$_G_saved_positional_parameters"
+
+ # Post-option preparation.
+ func_prep
+
+ # Reconfigure the package.
+ func_reconfigure
+
+ # Ensure .version is up-to-date.
+ func_update_dotversion
+
+ # Finalisation.
+ func_fini
+}
+
+
+# func_init
+# ---------
+# Any early initialisations can be hooked to this function. Consider
+# whether you can hook onto 'func_prep' instead, because if you hook
+# any slow to execute code in here, it will also add to the time before
+# './bootstrap --version' can respond.
+func_hookable func_init
+func_init ()
+{
+ $debug_cmd
+
+ func_run_hooks func_init
+}
+
+
+# func_prep
+# ---------
+# Function to perform preparation for remaining bootstrap process. If
+# your hooked code relies on the outcome of 'func_options' hook it here
+# rather than to 'func_init'.
+#
+# All the functions called inside func_prep are hookable. See the
+# individual implementations for details.
+func_hookable func_prep
+func_prep ()
+{
+ $debug_cmd
+
+ $require_buildtools_uptodate
+ $require_checkout_only_file
+
+ $require_gnulib_merge_changelog
+
+ # Report the results of SED and GREP searches from funclib.sh.
+ func_verbose "GREP='$GREP'"
+ func_verbose "SED='$SED'"
+
+ # fetch update files from the translation project
+ func_update_translations
+
+ func_run_hooks func_prep
+}
+
+
+# func_update_translations
+# ------------------------
+# Update package po files and translations.
+func_hookable func_update_translations
+func_update_translations ()
+{
+ $debug_cmd
+
+ $opt_skip_po || {
+ test -d po && {
+ $require_package
+
+ func_update_po_files po $package || exit $?
+ }
+
+ func_run_hooks func_update_translations
+ }
+}
+
+
+# func_reconfigure
+# ----------------
+# Reconfigure the current package by running the appropriate autotools in a
+# suitable order.
+func_hookable func_reconfigure
+func_reconfigure ()
+{
+ $debug_cmd
+
+ $require_automake_options
+
+ # Automake (without 'foreign' option) requires that NEWS & README exist.
+ case " $automake_options " in
+ " foreign ") ;;
+ *)
+ func_ensure_NEWS
+ func_ensure_README
+ ;;
+ esac
+
+ # Ensure ChangeLog presence.
+ if test -n "$gnulib_modules"; then
+ func_ifcontains "$gnulib_modules" gitlog-to-changelog \
+ func_ensure_changelog
+ else
+ $require_gnulib_cache
+ if $SED -n '/^gl_MODULES(\[/,/^])$/p' $gnulib_cache 2>/dev/null |
+ func_grep_q gitlog-to-changelog
+ then
+ func_ensure_changelog
+ fi
+ fi
+
+ # Released 'autopoint' has the tendency to install macros that have
+ # been obsoleted in current 'gnulib', so run this before 'gnulib-tool'.
+ func_autopoint
+
+ # Autoreconf runs 'aclocal' before 'libtoolize', which causes spurious
+ # warnings if the initial 'aclocal' is confused by the libtoolized
+ # (or worse: out-of-date) macro directory.
+ func_libtoolize
+
+ # If you need to do anything after 'gnulib-tool' is done, but before
+ # 'autoreconf' runs, you don't need to override this whole function,
+ # because 'func_gnulib_tool' is hookable.
+ func_gnulib_tool
+
+ func_autoreconf
+
+ func_run_hooks func_reconfigure
+}
+
+
+# func_gnulib_tool
+# ----------------
+# Run 'gnulib-tool' to fetch gnulib modules into the current package.
+#
+# It's assumed that since you are using gnulib's 'bootstrap' script,
+# you're also using gnulib elsewhere in your package. If not, then
+# you can replace this function in 'bootstrap.conf' with:
+#
+# func_gnulib_tool () { :; }
+#
+# (although the function returns immediately if $gnulib_tool is set to
+# true in any case).
+func_hookable func_gnulib_tool
+func_gnulib_tool ()
+{
+ $debug_cmd
+
+ $require_gnulib_tool
+ $require_libtoolize
+
+ test true = "$gnulib_tool" || {
+ $require_gnulib_git_submodules
+
+ # bootstrap.conf written for gnulib bootstrap expects
+ # gnulib_tool_option_extras to which --no-changelog is appended,
+ # but libtool bootstrap expects you to append to gnulib_tool_options
+ # so that you can override the --no-changelog default: make sure we
+ # support both styles so users can migrate between them easily.
+ gnulib_tool_all_options="$gnulib_tool_options $gnulib_tool_option_extras"
+
+ if test -n "$gnulib_modules"; then
+ $require_gnulib_cache
+ $require_gnulib_tool_base_options
+
+ gnulib_mode=--import
+
+ # Try not to pick up any stale values from 'gnulib-cache.m4'.
+ rm -f "$gnulib_cache"
+
+ test -n "$gnulib_tool_base_options" \
+ && func_append_uniq gnulib_tool_all_options " $gnulib_tool_base_options"
+ test -n "$gnulib_mk" \
+ && func_append_uniq gnulib_tool_all_options " --makefile-name=$gnulib_mk"
+ test -n "$tests_base" && {
+ func_append_uniq gnulib_tool_all_options " --tests-base=$tests_base"
+ func_append_uniq gnulib_tool_all_options " --with-tests"
+ }
+ else
+
+ # 'gnulib_modules' and others are cached in 'gnulib-cache.m4':
+ # Use 'gnulib --update' to fetch gnulib modules.
+ gnulib_mode=--update
+ fi
+
+ # Add a sensible default libtool option to gnulib_tool_options.
+ # The embedded echo is to squash whitespace before globbing.
+ case `echo " "$gnulib_tool_all_options" "` in
+ *" --no-libtool "*|*" --libtool "*) ;;
+ *) if test true = "$LIBTOOLIZE"; then
+ func_append_uniq gnulib_tool_all_options " --no-libtool"
+ else
+ func_append_uniq gnulib_tool_all_options " --libtool"
+ fi
+ ;;
+ esac
+
+ $opt_copy || func_append_uniq gnulib_tool_all_options " --symlink"
+
+ func_append_uniq gnulib_tool_all_options " $gnulib_mode"
+ func_append gnulib_tool_all_options " $gnulib_modules"
+
+ # The embedded echo is to squash whitespace before display.
+ gnulib_cmd=`echo $gnulib_tool $gnulib_tool_all_options`
+
+ func_show_eval "$gnulib_cmd" 'exit $?'
+
+ # Use 'gnulib-tool --copy-file' to install non-module files.
+ func_install_gnulib_non_module_files
+ }
+
+ func_run_hooks func_gnulib_tool
+}
+
+
+# func_fini
+# ---------
+# Function to perform all finalisation for the bootstrap process.
+func_hookable func_fini
+func_fini ()
+{
+ $debug_cmd
+
+ func_gettext_configuration
+ func_clean_dangling_symlinks
+ func_clean_unused_macros
+ func_skip_po_recommendation
+
+ func_run_hooks func_fini
+
+ $require_bootstrap_uptodate
+
+ func_echo "Done. Now you can run './configure'."
+}
+
+
+# func_gettext_configuration
+# --------------------------
+# Edit configuration values into po/Makevars.
+func_hookable func_gettext_configuration
+func_gettext_configuration ()
+{
+ $debug_cmd
+
+ $require_autopoint
+
+ test true = "$AUTOPOINT" || {
+ $require_copyright_holder
+ $require_extra_locale_categories
+ $require_package_bugreport
+
+ # Escape xgettext options for sed Makevars generation below.
+ # We have to delete blank lines in a separate script so that we don't
+ # append \\\ to the penultimate line, and then delete the last empty
+ # line, which messes up the variable substitution later in this
+ # function. Note that adding a literal \\\ requires double escaping
+ # here, once for the execution subshell, and again for the assignment,
+ # which is why there are actually 12 (!!) backslashes in the script.
+ _G_xgettext_options=`echo "$xgettext_options$nl" |$SED '/^$/d' |$SED '
+ $b
+ s|$| \\\\\\\\\\\\|'`
+
+ # Create gettext configuration.
+ func_echo "Creating po/Makevars from po/Makevars.template ..."
+ $RM -f po/Makevars
+ $SED '
+ /^EXTRA_LOCALE_CATEGORIES *=/s|=.*|= '"$extra_locale_categories"'|
+ /^COPYRIGHT_HOLDER *=/s|=.*|= '"$copyright_holder"'|
+ /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$package_bugreport"'|
+ /^XGETTEXT_OPTIONS *=/{
+ s|$| \\|
+ a\
+ '"$_G_xgettext_options"' \\\
+ $${end_of_xgettext_options+}
+ }
+ s/ *$//
+ ' po/Makevars.template >po/Makevars || exit 1
+ }
+
+ func_run_hooks func_gettext_configuration
+}
+
+
+
+## --------------- ##
+## Core functions. ##
+## --------------- ##
+
+# This section contains the main functions called from the 'Hookable
+# functions' (shown above), and are the ones you're most likely
+# to want to replace with your own implementations in 'bootstrap.conf'.
+
+
+# func_autopoint
+# --------------
+# If this package uses gettext, then run 'autopoint'.
+func_autopoint ()
+{
+ $debug_cmd
+
+ $require_autopoint
+
+ test true = "$AUTOPOINT" \
+ || func_show_eval "$AUTOPOINT --force" 'exit $?'
+}
+
+
+# func_libtoolize
+# ---------------
+# If this package uses libtool, then run 'libtoolize'.
+func_libtoolize ()
+{
+ $debug_cmd
+
+ $require_libtoolize
+
+ test true = "$LIBTOOLIZE" || {
+ _G_libtoolize_options=
+ $opt_copy && func_append _G_libtoolize_options " --copy"
+ $opt_force && func_append _G_libtoolize_options " --force"
+ $opt_verbose || func_append _G_libtoolize_options " --quiet"
+ func_show_eval "$LIBTOOLIZE$_G_libtoolize_options" 'exit $?'
+ }
+}
+
+
+# func_gnulib_tool_copy_file SRC DEST
+# -----------------------------------
+# Copy SRC, a path relative to the gnulib sub-tree, to DEST, a path
+# relative to the top-level source directory using gnulib-tool so that
+# any patches or replacements in $local_gl_path are applied.
+func_gnulib_tool_copy_file ()
+{
+ $debug_cmd
+
+ $require_gnulib_tool
+ $require_patch
+
+ if test true = "$gnulib_tool"; then
+ # If gnulib-tool is not available (e.g. bootstrapping in a
+ # distribution tarball), make sure that at least we have some
+ # version of the required file already in place.
+ test -f "$2" || func_fatal_error "\
+Can't find, copy or download '$2', a required
+gnulib supplied file, please provide the location of a
+complete 'gnulib' tree by setting 'gnulib_path' in your
+'bootstrap.conf' or with the '--gnulib-srcdir' option -
+or else specify the location of your 'git' binary by
+setting 'GIT' in the environment so that a fresh
+'gnulib' submodule can be cloned."
+ else
+ $require_gnulib_copy_cmd
+
+ $gnulib_copy_cmd $1 $2 2>/dev/null || {
+ $require_gnulib_path
+
+ func_error "'$gnulib_path/$1' does not exist"
+ return 1
+ }
+ fi
+}
+
+
+# func_install_gnulib_non_module_files
+# ------------------------------------
+# Get additional non-module files from gnulib, overriding existing files.
+func_install_gnulib_non_module_files ()
+{
+ $debug_cmd
+
+ $require_build_aux
+ $require_gnulib_tool
+
+ test -n "$gnulib_non_module_files" && {
+ maybe_exit_cmd=:
+
+ for file in $gnulib_non_module_files; do
+ case $file in
+ */COPYING*) dest=COPYING;;
+ */INSTALL) dest=INSTALL;;
+ build-aux/missing) dest=
+ func_warning settings "\
+Please remove build-aux/missing from gnulib_module_files in
+'bootstrap.conf', as it may clash with Automake's version."
+ ;;
+ build-aux/*) dest=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
+ *) dest=$file;;
+ esac
+
+ # Be sure to show all copying errors before bailing out
+ test -z "$dest" \
+ || func_gnulib_tool_copy_file "$file" "$dest" \
+ || maybe_exit_cmd="exit $EXIT_FAILURE"
+ done
+
+ $maybe_exit_cmd
+ }
+}
+
+
+# func_ensure_changelog
+# ---------------------
+# Even with 'gitlog-to-changelog' generated ChangeLogs, automake
+# will not run to completion with no ChangeLog file.
+func_ensure_changelog ()
+{
+ $debug_cmd
+
+ test -f ChangeLog && mv -f ChangeLog ChangeLog~
+
+ cat >ChangeLog <<'EOT'
+## ---------------------- ##
+## DO NOT EDIT THIS FILE! ##
+## ---------------------- ##
+
+ChangeLog is generated by gitlog-to-changelog.
+EOT
+
+ _G_message="creating dummy 'ChangeLog'"
+ test -f ChangeLog~ \
+ && func_append _G_message ' (backup in ChangeLog~)'
+ func_verbose "$_G_message"
+
+ return 0
+}
+
+
+# func_ensure_NEWS
+# ----------------
+# Without AM_INIT_AUTOMAKE([foreign]), automake will not run to
+# completion with no NEWS file, even though NEWS.md or NEWS.txt
+# is often preferable.
+func_ensure_NEWS ()
+{
+ $debug_cmd
+
+ test -f NEWS || {
+ _G_NEWS=
+ for _G_news in NEWS.txt NEWS.md NEWS.rst; do
+ test -f "$_G_news" && break
+ done
+
+ test -f "$_G_news" && $LN_S $_G_news NEWS
+ func_verbose "$LN_S $_G_news NEWS"
+ }
+
+ return 0
+}
+
+
+# func_ensure_README
+# ------------------
+# Without AM_INIT_AUTOMAKE([foreign]), automake will not run to
+# completion with no README file, even though README.md or README.txt
+# is often preferable.
+func_ensure_README ()
+{
+ $debug_cmd
+
+ test -f README || {
+ _G_README=
+ for _G_readme in README.txt README.md README.rst; do
+ test -f "$_G_readme" && break
+ done
+
+ test -f "$_G_readme" && $LN_S $_G_readme README
+ func_verbose "$LN_S $_G_readme README"
+ }
+
+ return 0
+}
+
+
+# func_autoreconf [SUBDIR]
+# ------------------------
+# Being careful not to re-run 'autopoint' or 'libtoolize', and not to
+# try to run 'autopoint', 'libtoolize' or 'autoheader' on packages that
+# don't use them, defer to 'autoreconf' for execution of the remaining
+# autotools to bootstrap this package.
+#
+# Projects with multiple trees to reconfigure can hook another call to
+# this function onto func_reconfigure:
+#
+# my_autoreconf_foo ()
+# {
+# func_autoreconf foo
+# }
+# func_add_hook func_reconfigure my_autoreconf_foo
+func_autoreconf ()
+{
+ $debug_cmd
+
+ $require_autoheader
+ $require_build_aux # automake and others put files in here
+ $require_macro_dir # aclocal and others put files in here
+
+ # We ran these manually already, and autoreconf won't exec ':'
+ save_AUTOPOINT=$AUTOPOINT; AUTOPOINT=true
+ save_LIBTOOLIZE=$LIBTOOLIZE; LIBTOOLIZE=true
+
+ _G_autoreconf_options=
+ $opt_copy || func_append _G_autoreconf_options " --symlink"
+ $opt_force && func_append _G_autoreconf_options " --force"
+ $opt_verbose && func_append _G_autoreconf_options " --verbose"
+ func_show_eval "$AUTORECONF$_G_autoreconf_options --install${1+ $1}" 'exit $?'
+
+ AUTOPOINT=$save_AUTOPOINT
+ LIBTOOLIZE=$save_LIBTOOLIZE
+}
+
+
+# func_check_configuration VARNAME [CONFIGURE_MACRO]
+# --------------------------------------------------
+# Exit with a suitable diagnostic for an important configuration change
+# that needs to be made before bootstrap can run correctly.
+func_check_configuration ()
+{
+ $debug_cmd
+
+ $require_configure_ac
+
+ eval 'test -n "$'$1'"' || {
+ _G_error_msg="please set '$1' in 'bootstrap.conf'"
+ if test -n "$configure_ac" && test -n "$2"; then
+ func_append _G_error_msg "
+or add the following (or similar) to your '$configure_ac':
+$2"
+ fi
+
+ func_fatal_error "$_G_error_msg"
+ }
+}
+
+
+# func_clean_dangling_symlinks
+# ----------------------------
+# Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
+# gnulib-populated directories. Such .m4 files would cause aclocal to
+# fail. The following requires GNU find 4.2.3 or newer. Considering
+# the usual portability constraints of this script, that may seem a very
+# demanding requirement, but it should be ok. Ignore any failure,
+# which is fine, since this is only a convenience to help developers
+# avoid the relatively unusual case where a symlinked-to .m4 file is
+# git-removed from gnulib between successive runs of this script.
+func_clean_dangling_symlinks ()
+{
+ $debug_cmd
+
+ $require_macro_dir
+ $require_source_base
+
+ func_verbose "cleaning dangling symlinks"
+
+ find "$macro_dir" "$source_base" \
+ -depth \( -name '*.m4' -o -name '*.[ch]' \) \
+ -type l -xtype l -delete > /dev/null 2>&1
+}
+
+
+# func_clean_unused_macros
+# ------------------------
+# Autopoint can result in over-zealously adding macros into $macro_dir
+# even though they are not actually used, for example tests to help
+# build the 'intl' directory even though you have specified
+# 'AM_GNU_GETTEXT([external])' in your configure.ac. This function
+# looks removes any macro files that can be found in gnulib, but
+# are not 'm4_include'd by 'aclocal.m4'.
+func_clean_unused_macros ()
+{
+ $debug_cmd
+
+ $require_gnulib_path
+ $require_macro_dir
+
+ test -n "$gnulib_path" && test -f aclocal.m4 && {
+ aclocal_m4s=`find . -name aclocal.m4 -print`
+
+ # We use 'ls|grep' instead of 'ls *.m4' to avoid exceeding
+ # command line length limits in some shells.
+ for file in `cd "$macro_dir" && ls -1 |$GREP '\.m4$'`; do
+
+ # Remove a macro file when aclocal.m4 does not m4_include it...
+ func_grep_q 'm4_include([[]'$macro_dir/$file'])' $aclocal_m4s \
+ || test ! -f "$gnulib_path/m4/$file" || {
+
+ # ...and there is an identical file in gnulib...
+ if func_cmp_s "$gnulib_path/m4/$file" "$macro_dir/$file"; then
+
+ # ...and it's not in the precious list ('echo' is needed
+ # here to squash whitespace for the match expression).
+ case " "`echo $gnulib_precious`" " in
+ *" $file "*) ;;
+ *) rm -f "$macro_dir/$file"
+ func_verbose \
+ "removing unused gnulib file '$macro_dir/$file'"
+ esac
+ fi
+ }
+ done
+ }
+}
+
+
+# func_skip_po_recommendation
+# ---------------------------
+# If there is a po directory, and '--skip-po' wasn't passed, let the
+# user know that they can use '--skip-po' on subsequent invocations.
+func_skip_po_recommendation ()
+{
+ $debug_cmd
+
+ test ! -d po \
+ || $opt_skip_po \
+ || func_warning recommend "\
+If your pofiles are up-to-date, you can rerun bootstrap
+as '$progname --skip-po' to avoid redownloading."
+}
+
+
+# func_update_dotversion
+# ----------------------
+# Even with 'gitlog-to-changelog' generated ChangeLogs, automake
+# will not run to completion with no ChangeLog file.
+func_update_dotversion ()
+{
+ $debug_cmd
+
+ test -f "$build_aux/git-version-gen" && {
+ _G_message="updating .version"
+ test -f .version && {
+ mv .version .version~
+ func_append _G_message " (backup in .version~)"
+ }
+ func_verbose "updating .version"
+
+ $build_aux/git-version-gen dummy-arg > .version
+ }
+}
+
+
+
+## -------------------- ##
+## 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. Where a variable already has a non-
+# empty value (as set by the package's 'bootstrap.conf'), that value is
+# used in preference to deriving the default. Call them using their
+# associated 'require_*' variable to ensure that they are executed, at
+# most, once.
+
+
+# require_gnulib_git_submodules
+# -----------------------------
+# Initialize all git modules from $gnulib_git_submodules before we
+# run 'gnulib-tool'.
+require_gnulib_git_submodules=func_require_gnulib_git_submodules
+func_require_gnulib_git_submodules ()
+{
+ test -n "$gnulib_git_submodules" && {
+ for _G_submodule in $gnulib_git_submodules
+ do
+ func_show_eval "git submodule init -- $_G_submodule" \
+ && func_show_eval "git submodule update -- $_G_submodule" \
+ || func_fatal_error "Unable to init git module '$_G_submodule'."
+ done
+ }
+
+ require_gnulib_git_submodules=:
+}
+
+
+# require_checkout_only_file
+# --------------------------
+# Bail out if this package only bootstraps properly from a repository
+# checkout.
+require_checkout_only_file=func_require_checkout_only_file
+func_require_checkout_only_file ()
+{
+ $debug_cmd
+
+ $opt_force || {
+ test -n "$checkout_only_file" && test ! -f "$checkout_only_file" \
+ && func_fatal_error "\
+Bootstrapping from a non-checked-out distribution is risky.
+If you wish to bootstrap anyway, use the '--force' option."
+ }
+
+ require_checkout_only_file=:
+}
+
+
+# require_aclocal_amflags
+# -----------------------
+# Ensure '$aclocal_amflags' has a sensible default, extracted from
+# 'Makefile.am' if necessary.
+require_aclocal_amflags=func_require_aclocal_amflags
+func_require_aclocal_amflags ()
+{
+ $debug_cmd
+
+ $require_makefile_am
+
+ _G_sed_extract_aclocal_amflags='s|#.*$||
+ /^[ ]*ACLOCAL_AMFLAGS[ ]*=/ {
+ s|^.*=[ ]*\(.*\)|aclocal_amflags="\1"|
+ p
+ }'
+
+ _G_aclocal_flags_cmd=`$SED -n "$_G_sed_extract_aclocal_amflags" \
+ "$makefile_am"`
+ eval "$_G_aclocal_flags_cmd"
+
+ func_verbose "ACLOCAL_AMFLAGS='$aclocal_amflags'"
+
+ require_aclocal_amflags=:
+}
+
+
+# require_autoheader
+# ------------------
+# Skip autoheader if it's not needed.
+require_autoheader=func_require_autoheader
+func_require_autoheader ()
+{
+ $debug_cmd
+
+ test true = "$AUTOHEADER" || {
+ func_extract_trace AC_CONFIG_HEADERS
+ test -n "$func_extract_trace_result" \
+ || func_extract_trace AC_CONFIG_HEADER
+
+ test -n "$func_extract_trace_result" || {
+ AUTOHEADER=true
+
+ func_verbose "export AUTOHEADER='$AUTOHEADER'"
+
+ # Make sure the search result is visible to subshells
+ export AUTOHEADER
+ }
+ }
+
+ require_autoheader=:
+}
+
+
+# require_automake_options
+# ------------------------
+# Extract options from AM_AUTOMAKE_INIT.
+require_automake_options=func_require_automake_options
+func_require_automake_options ()
+{
+ $debug_cmd
+
+ func_extract_trace AM_INIT_AUTOMAKE
+ automake_options=$func_extract_trace_result
+
+ require_automake_options=:
+}
+
+
+# require_autopoint
+# -----------------
+# Skip autopoint if it's not needed.
+require_autopoint=func_require_autopoint
+func_require_autopoint ()
+{
+ $debug_cmd
+
+ test true = "$AUTOPOINT" || {
+ func_extract_trace AM_GNU_GETTEXT_VERSION
+
+ test -n "$func_extract_trace_result" || {
+ AUTOPOINT=true
+
+ func_verbose "export AUTOPOINT='$AUTOPOINT'"
+
+ # Make sure the search result is visible to subshells
+ export AUTOPOINT
+ }
+ }
+
+ require_autopoint=:
+}
+
+
+# require_bootstrap_uptodate
+# --------------------------
+# Complain if the version of bootstrap in the gnulib directory differs
+# from the one we are running.
+require_bootstrap_uptodate=func_require_bootstrap_uptodate
+func_require_bootstrap_uptodate ()
+{
+ $debug_cmd
+
+ $require_build_aux
+
+ _G_bootstrap_sources="
+ $build_aux/bootstrap.in
+ $build_aux/extract-trace
+ $build_aux/funclib.sh
+ $build_aux/options-parser
+ "
+
+ _G_missing_bootstrap_sources=false
+ for _G_src in $_G_bootstrap_sources; do
+ test -f "$_G_src" || _G_missing_bootstrap_sources=:
+ done
+
+ if $_G_missing_bootstrap_sources; then
+ func_warning upgrade "\
+Please add bootstrap to your gnulib_modules list in
+'bootstrap.conf', so that I can tell you when there are
+updates available."
+ else
+ rm -f bootstrap.new
+ $build_aux/inline-source $build_aux/bootstrap.in > bootstrap.new
+
+ if func_cmp_s "$progpath" bootstrap.new; then
+ rm -f bootstrap.new
+ func_verbose "bootstrap script up to date"
+ else
+ chmod 555 bootstrap.new
+ func_warning upgrade "\
+An updated bootstrap script has been generated for you in
+'bootstrap.new'. After you've verified that you want
+the changes, you can update with:
+ mv -f bootstrap.new $progname
+ ./$progname
+
+Or you can disable this check permanently by adding the
+following to 'bootstrap.conf':
+ require_bootstrap_uptodate=:"
+ fi
+ fi
+
+ require_bootstrap_uptodate=:
+}
+
+
+# require_build_aux
+# -----------------
+# Ensure that '$build_aux' is set, and if it doesn't already point to an
+# existing directory, create one.
+require_build_aux=func_require_build_aux
+func_require_build_aux ()
+{
+ $debug_cmd
+
+ test -n "$build_aux" || {
+ func_extract_trace_first AC_CONFIG_AUX_DIR
+ build_aux=$func_extract_trace_first_result
+ func_check_configuration build_aux \
+ "AC_CONFIG_AUX_DIR([name of a directory for build scripts])"
+
+ func_verbose "build_aux='$build_aux'"
+ }
+
+ $require_vc_ignore_files
+
+ # If the build_aux directory doesn't exist, create it now, and mark it
+ # as ignored for the VCS.
+ if test ! -d "$build_aux"; then
+ func_show_eval "mkdir '$build_aux'"
+
+ test -n "$vc_ignore_files" \
+ || func_insert_if_absent "$build_aux" $vc_ignore_files
+ fi
+
+ require_build_aux=:
+}
+
+
+# require_buildreq_autobuild
+# --------------------------
+# Try to find whether the bootstrap requires autobuild.
+require_buildreq_autobuild=func_require_buildreq_autobuild
+func_require_buildreq_autobuild ()
+{
+ $debug_cmd
+
+ $require_macro_dir
+
+ test -f "$macro_dir/autobuild.m4" \
+ || printf '%s\n' "$buildreq" |func_grep_q '^[ ]*autobuild' \
+ || {
+ func_extract_trace AB_INIT
+ test -n "$func_extract_trace_result" && {
+ func_append buildreq 'autobuild - http://josefsson.org/autobuild/
+'
+ func_verbose "auto-adding 'autobuild' to build requirements"
+ }
+ }
+
+ require_buildreq_autobuild=:
+}
+
+
+# require_buildreq_autoconf
+# require_buildreq_autopoint
+# require_buildreq_libtoolize
+# ---------------------------
+# Try to find the minimum compatible version of autoconf/libtool
+# required to bootstrap successfully, and add it to '$buildreq'.
+for tool in autoconf libtoolize autopoint; do
+ b=$tool
+ v=require_buildreq_${tool}
+ f=func_$v
+ case $tool in
+ autoconf) m=AC_PREREQ ;;
+ libtoolize) m=LT_PREREQ; b=libtool ;;
+ autopoint) m=AM_GNU_GETTEXT_VERSION b=gettext ;;
+ esac
+
+ eval $v'='$f'
+ '$f' ()
+ {
+ $debug_cmd
+
+ # The following is ignored if undefined, but might be necessary
+ # in order for `func_find_tool` to run.
+ ${require_'$tool'-:}
+
+ printf '\''%s\n'\'' "$buildreq" |func_grep_q '\''^[ ]*'$tool\'' || {
+ func_extract_trace '$m'
+ _G_version=$func_extract_trace_result
+ test -n "$_G_version" && {
+ func_append buildreq "\
+ '$tool' $_G_version http://www.gnu.org/s/'$b'
+"
+ func_verbose \
+ "auto-adding '\'$tool'-$_G_version'\'' to build requirements"
+ }
+ }
+
+ '$v'=:
+ }
+'
+done
+
+
+# require_buildreq_automake
+# -------------------------
+# Try to find the minimum compatible version of automake required to
+# bootstrap successfully, and add it to '$buildreq'.
+require_buildreq_automake=func_require_buildreq_automake
+func_require_buildreq_automake ()
+{
+ $debug_cmd
+
+ # if automake is not already listed in $buildreq...
+ printf '%s\n' "$buildreq" |func_grep_q automake || {
+ func_extract_trace AM_INIT_AUTOMAKE
+
+ # ...and AM_INIT_AUTOMAKE is declared...
+ test -n "$func_extract_trace_result" && {
+ automake_version=`$ECHO "$func_extract_trace_result" \
+ |$SED -e 's|[^0-9]*||' -e 's| .*$||'`
+ test -n "$automake_version" || automake_version=-
+
+ func_append buildreq "\
+ automake $automake_version http://www.gnu.org/s/automake
+"
+ func_verbose \
+ "auto-adding 'automake-$automake_version' to build requirements"
+ }
+ }
+
+ require_buildreq_automake=:
+}
+
+
+# require_buildreq_patch
+# ----------------------
+# Automatically add a patch build-requirement if there are diff files
+# in $local_gl_path.
+require_buildreq_patch=func_require_buildreq_patch
+func_require_buildreq_patch ()
+{
+ $debug_cmd
+
+ $require_local_gl_path
+
+ # This ensures PATCH is set appropriately by the time
+ # func_check_versions enforces $buildreq.
+ $require_patch
+
+ # If patch is not already listed in $buildreq...
+ printf '%s\n' "$buildreq" |func_grep_q '^[ ]*patch' || {
+ eval "set dummy $local_gl_path_quoted" ; shift
+
+ for _G_dir
+ do
+ # The ugly find invocation is necessary to exit with non-zero
+ # status for old find binaries that don't support -exec fully.
+ if test ! -d "$_G_dir" \
+ || find "$_G_dir" -name "*.diff" -exec false {} \; ; then :
+ else
+ func_append buildreq "patch - http://www.gnu.org/s/patch$nl"
+ break
+ fi
+ done
+ }
+
+ require_buildreq_patch=:
+}
+
+
+# require_buildtools_uptodate
+# ---------------------------
+# Ensure all the packages listed in BUILDREQS are available on the build
+# machine at the minimum versions or better.
+require_buildtools_uptodate=func_require_buildtools_uptodate
+func_require_buildtools_uptodate ()
+{
+ $debug_cmd
+
+ $require_buildreq_autobuild
+ $require_buildreq_autoconf
+ $require_buildreq_automake
+ $require_buildreq_libtoolize
+ $require_buildreq_autopoint
+ $require_buildreq_patch
+
+ test -n "$buildreq" && {
+ _G_error_hdr=
+
+ func_check_versions $buildreq
+ $func_check_versions_result || {
+ test -n "$buildreq_readme" \
+ && test -f "$buildreq_readme" \
+ && _G_error_hdr="\
+$buildreq_readme explains how to obtain these prerequisite programs:
+"
+ func_strtable 0 11 12 36 \
+ "Program" "Min_version" "Homepage" $buildreq
+ func_fatal_error "$_G_error_hdr$func_strtable_result"
+ }
+ }
+
+ require_buildtools_uptodate=:
+}
+
+
+# require_copyright_holder
+# ------------------------
+# Ensure there is a sensible non-empty default value in '$copyright_holder'.
+require_copyright_holder=func_require_copyright_holder
+func_require_copyright_holder ()
+{
+ $debug_cmd
+
+ test -n "$copyright_holder" || {
+ copyright_holder='Free Software Foundation, Inc.'
+ func_warning settings "\
+Please set copyright_holder explicitly in 'bootstrap.conf';
+defaulting to '$copyright_holder'."
+ }
+
+ require_copyright_holder=:
+}
+
+
+# require_doc_base
+# ----------------
+# Ensure doc_base has a sensible value, extracted from 'gnulib-cache.m4'
+# if possible, otherwise letting 'gnulib-tool' pick a default.
+require_doc_base=func_require_doc_base
+func_require_doc_base ()
+{
+ $debug_cmd
+
+ $require_gnulib_cache
+
+ test -f "$gnulib_cache" && test -z "$doc_base" && {
+ func_extract_trace_first "gl_DOC_BASE" "$gnulib_cache"
+ doc_base=$func_extract_trace_first_result
+
+ test -n "$doc_base" && func_verbose "doc_base='$doc_base'"
+ }
+
+ require_doc_base=:
+}
+
+
+# require_dotgitmodules
+# ---------------------
+# Ensure we have a '.gitmodules' file, with appropriate 'gnulib' settings.
+require_dotgitmodules=func_require_dotgitmodules
+func_require_dotgitmodules ()
+{
+ $debug_cmd
+
+ $require_git
+
+ test true = "$GIT" || {
+ # A gnulib entry in .gitmodules always takes precedence.
+ _G_path=`$GIT config --file .gitmodules submodule.gnulib.path 2>/dev/null`
+
+ test -n "$_G_path" || {
+ $require_vc_ignore_files
+
+ func_verbose "creating '.gitmodules'"
+
+ # If the .gitmodules file doesn't exist, create it now, and mark
+ # it as ignored for the VCS.
+ test -n "$gnulib_path" || gnulib_path=gnulib
+ test -n "$gnulib_url" || gnulib_url=git://git.sv.gnu.org/gnulib
+
+ {
+ echo '[submodule "gnulib"]'
+ echo " path = $gnulib_path"
+ echo " url = $gnulib_url"
+ } >> .gitmodules
+
+ test -n "$vc_ignore_files" \
+ || func_insert_if_absent ".gitmodules" $vc_ignore_files
+ }
+ }
+
+ require_dotgitmodules=:
+}
+
+
+# require_extra_locale_categories
+# -------------------------------
+# Ensure there is a default value in '$extra_locale_categories'
+require_extra_locale_categories=func_require_extra_locale_categories
+func_require_extra_locale_categories ()
+{
+ $debug_cmd
+
+ # Defaults to empty, so run with whatever value may have been set in
+ # 'bootstrap.conf'.
+ require_extra_locale_categories=:
+}
+
+
+# require_git
+# -----------
+# Ignore git if it's not available, or we're not in a git checkout tree.
+require_git=func_require_git
+func_require_git ()
+{
+ $debug_cmd
+
+ $opt_skip_git && GIT=true
+
+ test true = "$GIT" || {
+ if test -d .git/.; then
+ ($GIT --version) >/dev/null 2>&1 || GIT=true
+ fi
+ }
+
+ func_verbose "GIT='$GIT'"
+
+ require_git=:
+}
+
+
+# require_gnulib_cache
+# --------------------
+# Ensure there is a non-empty default for '$gnulib_cache', and that it
+# names an existing file.
+require_gnulib_cache=func_require_gnulib_cache
+func_require_gnulib_cache ()
+{
+ $debug_cmd
+
+ $require_macro_dir
+
+ test -n "$gnulib_cache" \
+ || gnulib_cache=$macro_dir/gnulib-cache.m4
+
+ func_verbose "found '$gnulib_cache'"
+
+ require_gnulib_cache=:
+}
+
+
+# require_gnulib_copy_cmd
+# -----------------------
+# Only calculate the options for copying files with gnulib once.
+require_gnulib_copy_cmd=func_require_gnulib_copy_cmd
+func_require_gnulib_copy_cmd ()
+{
+ $debug_cmd
+
+ $require_gnulib_tool
+ $require_gnulib_tool_base_options
+
+ gnulib_copy_cmd="$gnulib_tool $gnulib_tool_base_options --copy-file"
+ $opt_copy || func_append gnulib_copy_cmd " --symlink"
+ $opt_quiet || func_append gnulib_copy_cmd " --verbose"
+
+ require_gnulib_copy_cmd=:
+}
+
+
+# require_gnulib_merge_changelog
+# ------------------------------
+# See if we can use gnulib's git-merge-changelog merge driver.
+require_gnulib_merge_changelog=func_require_gnulib_merge_changelog
+func_require_gnulib_merge_changelog ()
+{
+ $debug_cmd
+
+ test -f ChangeLog && {
+ $require_git
+
+ func_grep_q '^\(/\|\)ChangeLog$' .gitignore || test true = "$GIT" || {
+ if $GIT config merge.merge-changelog.driver >/dev/null; then
+ :
+ elif (git-merge-changelog --version) >/dev/null 2>&1; then
+ func_echo "initializing git-merge-changelog driver"
+ $GIT config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
+ $GIT config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
+ else
+ func_warning recommend \
+ "Consider installing git-merge-changelog from gnulib."
+ fi
+ }
+ }
+
+ require_gnulib_merge_changelog=:
+}
+
+
+# require_gnulib_mk
+# -----------------
+# Ensure gnulib_mk has a sensible value, extracted from 'gnulib-cache.m4'
+# if possible, otherwise letting 'gnulib-tool' pick a default.
+require_gnulib_mk=func_require_gnulib_mk
+func_require_gnulib_mk ()
+{
+ $debug_cmd
+
+ $require_gnulib_cache
+
+ test -f "$gnulib_cache" && test -z "$gnulib_mk" && {
+ func_extract_trace_first "gl_MAKEFILE_NAME" "$gnulib_cache"
+ gnulib_mk=$func_extract_trace_first_result
+
+ test -n "$gnulib_mk" && func_verbose "gnulib_mk='$gnulib_mk'"
+ }
+
+ require_gnulib_mk=:
+}
+
+
+# require_gnulib_name
+# -------------------
+# Ensure gnulib_name has a sensible value, extracted from 'gnulib-cache.m4'
+# if possible, otherwise letting 'gnulib-tool' pick a default.
+require_gnulib_name=func_require_gnulib_name
+func_require_gnulib_name ()
+{
+ $debug_cmd
+
+ $require_gnulib_cache
+
+ test -f "$gnulib_cache" && test -z "$gnulib_name" && {
+ func_extract_trace_first "gl_LIB" "$gnulib_cache"
+ gnulib_name=$func_extract_trace_first_result
+
+ test -n "$gnulib_name" && func_verbose "gnulib_name='$gnulib_name'"
+ }
+
+ require_gnulib_name=:
+}
+
+
+# require_gnulib_path
+# require_gnulib_url
+# -------------------
+# Ensure 'gnulib_path' and 'gnulib_url' are set.
+require_gnulib_path=func_require_dotgitmodules_parameters
+require_gnulib_url=func_require_dotgitmodules_parameters
+func_require_dotgitmodules_parameters ()
+{
+ $debug_cmd
+
+ $require_git
+
+ test true = "$GIT" && {
+ # If we can't find git (or if the user specified '--skip-git'),
+ # then use an existing gnulib directory specified with
+ # '--gnulib-srcdir' if possible.
+ test -n "$gnulib_path" \
+ || test ! -x "$opt_gnulib_srcdir/gnulib-tool" \
+ || gnulib_path=$opt_gnulib_srcdir
+ }
+
+
+ $require_dotgitmodules
+
+ test -f .gitmodules && {
+ # Extract the parameters with sed, since git may be missing
+ test -n "$gnulib_path" \
+ || gnulib_path=`$SED -e '/^.submodule "gnulib".$/,${
+ /[ ]*path *= */{
+ s|[ ]*||g;s|^[^=]*=||;p
+ }
+ }
+ d' .gitmodules |$SED 1q`
+ test -n "$gnulib_url" \
+ || gnulib_url=`$SED -e '/^.submodule "gnulib".$/,${
+ /[ ]*url *= */{
+ s|[ ]*||g;s|^[^=]*=||;p
+ }
+ }
+ d' .gitmodules |$SED 1q`
+
+ func_verbose "gnulib_path='$gnulib_path'"
+ func_verbose "gnulib_url='$gnulib_url'"
+ }
+
+ require_gnulib_path=:
+ require_gnulib_url=:
+}
+
+
+# require_gnulib_submodule
+# ------------------------
+# Ensure that there is a current gnulib submodule at '$gnulib_path'.
+require_gnulib_submodule=func_require_gnulib_submodule
+func_require_gnulib_submodule ()
+{
+ $debug_cmd
+
+ $require_git
+
+ if test true = "$GIT"; then
+ func_warning recommend \
+ "No 'git' found; imported gnulib modules may be outdated."
+ else
+ $require_gnulib_path
+ $require_gnulib_url
+
+ if test -f .gitmodules && test -f "$gnulib_path/gnulib-tool"; then
+ : All present and correct.
+
+ elif test -n "$opt_gnulib_srcdir"; then
+ # Older git can't clone into an empty directory.
+ rmdir "$gnulib_path" 2>/dev/null
+ func_show_eval "$GIT clone --reference '$opt_gnulib_srcdir' \
+ '$gnulib_url' '$gnulib_path'" \
+ || func_fatal_error "Unable to fetch gnulib submodule."
+
+ # Without --gnulib-srcdir, and no existing checked out submodule, we
+ # create a new shallow clone of the remote gnulib repository.
+ else
+ trap func_cleanup_gnulib 1 2 13 15
+
+ shallow=
+ $GIT clone -h 2>&1 |func_grep_q -- --depth \
+ && shallow='--depth 365'
+
+ func_show_eval "$GIT clone $shallow '$gnulib_url' '$gnulib_path'" \
+ func_cleanup_gnulib
+
+ # FIXME: Solaris /bin/sh will try to execute '-' if any of
+ # these signals are caught after this.
+ trap - 1 2 13 15
+ fi
+
+ # Make sure we've checked out the correct revision of gnulib.
+ func_show_eval "$GIT submodule init -- $gnulib_path" \
+ && func_show_eval "$GIT submodule update -- $gnulib_path" \
+ || func_fatal_error "Unable to update gnulib submodule."
+ fi
+
+ require_gnulib_submodule=:
+}
+
+
+# require_gnulib_tool
+# -------------------
+# Ensure that '$gnulib_tool' is set, and points to an executable file,
+# or else fall back to using the binary 'true' if the main gnulib
+# files appear to have been imported already.
+require_gnulib_tool=func_require_gnulib_tool
+func_require_gnulib_tool ()
+{
+ $debug_cmd
+
+ test true = "$gnulib_tool" || {
+ $require_gnulib_submodule
+ $require_gnulib_path
+
+ test -n "$gnulib_tool" \
+ || gnulib_tool=$gnulib_path/gnulib-tool
+
+ test -x "$gnulib_tool" || {
+ gnulib_tool=true
+ func_warning recommend \
+ "No 'gnulib-tool' found; gnulib modules may be missing."
+ }
+
+ test true = "$gnulib_tool" \
+ || func_verbose "found '$gnulib_tool'"
+ }
+
+ require_gnulib_tool=:
+}
+
+
+# require_gnulib_tool_base_options
+# --------------------------------
+# Ensure that '$gnulib_tool_base_options' contains all the base options
+# required according to user configuration from bootstrap.conf.
+require_gnulib_tool_base_options=func_require_gnulib_tool_base_options
+func_require_gnulib_tool_base_options ()
+{
+ $debug_cmd
+
+ $require_gnulib_tool
+
+ gnulib_tool_base_options=
+
+ test true = "$gnulib_tool" || {
+ # 'gnulib_modules' and others are maintained in 'bootstrap.conf':
+ # Use 'gnulib --import' to fetch gnulib modules.
+ $require_build_aux
+ test -n "$build_aux" \
+ && func_append_uniq gnulib_tool_base_options " --aux-dir=$build_aux"
+ $require_macro_dir
+ test -n "$macro_dir" \
+ && func_append_uniq gnulib_tool_base_options " --m4-base=$macro_dir"
+ $require_doc_base
+ test -n "$doc_base" \
+ && func_append_uniq gnulib_tool_base_options " --doc-base=$doc_base"
+ $require_gnulib_name
+ test -n "$gnulib_name" \
+ && func_append_uniq gnulib_tool_base_options " --lib=$gnulib_name"
+ $require_local_gl_path
+ test -n "$local_gl_path" && {
+ eval "set dummy $local_gl_path_quoted" ; shift
+ for _G_dir
+ do
+ func_append_uniq gnulib_tool_base_options " --local-dir=$_G_dir"
+ done
+ }
+ $require_source_base
+ test -n "$source_base" \
+ && func_append_uniq gnulib_tool_base_options " --source-base=$source_base"
+ }
+
+ require_gnulib_tool_base_options=:
+}
+
+
+# require_libtoolize
+# ------------------
+# Skip libtoolize if it's not needed.
+require_libtoolize=func_require_libtoolize
+func_require_libtoolize ()
+{
+ $debug_cmd
+
+ # Unless we're not searching for libtool use by this package, set
+ # LIBTOOLIZE to true if none of 'LT_INIT', 'AC_PROG_LIBTOOL' and
+ # 'AM_PROG_LIBTOOL' are used in configure.
+ test true = "$LIBTOOLIZE" || {
+ func_extract_trace LT_INIT
+ test -n "$func_extract_trace_result" || func_extract_trace AC_PROG_LIBTOOL
+ test -n "$func_extract_trace_result" || func_extract_trace AM_PROG_LIBTOOL
+ test -n "$func_extract_trace_result" || LIBTOOLIZE=true
+ }
+
+ test -n "$LIBTOOLIZE" || {
+ # Find libtoolize, named glibtoolize in Mac Ports, but prefer
+ # user-installed libtoolize to ancient glibtoolize shipped by
+ # Apple with Mac OS X when Mac Ports is not installed.
+ func_find_tool LIBTOOLIZE libtoolize glibtoolize
+ }
+
+ test -n "$LIBTOOLIZE" || func_fatal_error "\
+Please install GNU Libtool, or 'export LIBTOOLIZE=/path/to/libtoolize'."
+
+ func_verbose "export LIBTOOLIZE='$LIBTOOLIZE'"
+
+ # Make sure the search result is visible to subshells
+ export LIBTOOLIZE
+
+ require_libtoolize=:
+}
+
+
+# require_local_gl_path
+# ---------------------
+# Ensure local_gl_path has a sensible value, extracted from 'gnulib-cache.m4' if
+# possible, otherwise letting 'gnulib-tool' pick a default.
+require_local_gl_path=func_require_local_gl_path
+func_require_local_gl_path ()
+{
+ $debug_cmd
+
+ $require_gnulib_cache
+
+ # Compat with older bootstrap versions.
+ test -n "$local_gl_dir" && {
+ func_warning settings "\
+Please use 'local_gl_path' instead of 'local_gl_dir' in your
+'bootstrap.conf' file."
+ local_gl_path=$local_gl_dir
+ local_gl_dir=
+ }
+
+ test -f "$gnulib_cache" && test -z "$local_gl_path" && {
+ func_extract_trace_first "gl_LOCAL_DIR" "$gnulib_cache"
+ local_gl_path=$func_extract_trace_first_result
+ test -n "$local_gl_path" && func_verbose "local_gl_path='$local_gl_path'"
+ }
+
+ test -z "$local_gl_path_quoted" && test -n "$local_gl_path" && {
+ save_IFS=$IFS
+ set dummy
+ # Don't use PATH_SEPARATOR here, gnulib must be fixed to store only ':' as
+ # path separator into gnulib-cache.m4 (consistency reasons among systems).
+ IFS=:
+ for _G_dir in $local_gl_path
+ do
+ set "$@" "$_G_dir"
+ done
+ shift
+ IFS=$save_IFS
+ func_quote eval "$@"
+ local_gl_path_quoted=$func_quote_result
+ }
+
+ require_local_gl_path=:
+}
+
+
+# require_macro_dir
+# -----------------
+# Ensure that '$macro_dir' is set, and if it doesn't already point to an
+# existing directory, create one.
+require_macro_dir=func_require_macro_dir
+func_require_macro_dir ()
+{
+ $debug_cmd
+
+ # Sometimes this is stored in 'configure.ac'.
+ test -n "$macro_dir" || {
+ # AC_CONFIG_MACRO_DIRS takes a space delimited list of directories,
+ # but we only care about the first one in bootstrap.
+ func_extract_trace_first AC_CONFIG_MACRO_DIRS
+ macro_dir=`expr "x$func_extract_trace_first_result" : 'x\([^ ]*\)'`
+ }
+ test -n "$macro_dir" || {
+ func_extract_trace_first AC_CONFIG_MACRO_DIR
+ macro_dir=$func_extract_trace_first_result
+ }
+
+ # Otherwise we might find it in 'Makefile.am'.
+ test -n "$macro_dir" || {
+ $require_aclocal_amflags
+
+ # Take the argument following the first '-I', if any.
+ _G_minus_I_seen=false
+ for _G_arg in $aclocal_amflags; do
+ case $_G_minus_I_seen,$_G_arg in
+ :,*) macro_dir=$_G_arg; break ;;
+ *,-I) _G_minus_I_seen=: ;;
+ *,-I*) macro_dir=`expr x$_G_arg : 'x-I\(.*\)$'`; break ;;
+ esac
+ done
+ }
+
+ func_verbose "macro_dir='$macro_dir'"
+
+ func_check_configuration macro_dir \
+ "AC_CONFIG_MACRO_DIRS([name of a directory for configure m4 files])"
+
+ $require_vc_ignore_files
+
+ # If the macro_dir directory doesn't exist, create it now, and mark it
+ # as ignored for the VCS.
+ if test ! -d "$macro_dir"; then
+ mkdir "$macro_dir" || func_permissions_error "$macro_dir"
+
+ test -n "$vc_ignore_files" \
+ || func_insert_if_absent "$macro_dir" $vc_ignore_files
+ fi
+
+ require_macro_dir=:
+}
+
+
+# require_makefile_am
+# -------------------
+# Ensure there is a 'Makefile.am' in the current directory.
+require_makefile_am=func_require_makefile_am
+func_require_makefile_am ()
+{
+ $debug_cmd
+
+ test -n "$makefile_am" \
+ || makefile_am=Makefile.am
+
+ <"$makefile_am"
+
+ func_verbose "found '$makefile_am'"
+
+ require_makefile_am=:
+}
+
+
+# require_package
+# ---------------
+# Ensure that '$package' contains a sensible default value.
+require_package=func_require_package
+func_require_package ()
+{
+ $debug_cmd
+
+ test -n "$package" || {
+ $require_package_name
+
+ package=`echo "$package_name" \
+ |$SED -e 's/GNU //' \
+ -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'`
+ }
+
+ func_verbose "package='$package'"
+
+ require_package=:
+}
+
+
+# require_package_bugreport
+# -------------------------
+# Ensure that this has a sensible value, extracted from 'configure.ac'
+# if appropriate (and possible!).
+require_package_bugreport=func_require_package_bugreport
+func_require_package_bugreport ()
+{
+ $debug_cmd
+
+ func_extract_trace AC_INIT
+
+ save_ifs=$IFS
+ IFS=:
+ set dummy $func_extract_trace_result
+ IFS=$save_ifs
+ shift
+
+ test -n "$package_bugreport" || package_bugreport=$3
+ func_check_configuration package_bugreport \
+ "AC_INIT([$package_name], [$package_version], [bug-$package@gnu.org])"
+ func_verbose "package_bugreport='$package_bugreport'"
+
+ require_package_bugreport=:
+}
+
+
+# require_package_name
+# --------------------
+# Ensure that this has a sensible value, extracted from 'configure.ac'
+# if appropriate (and possible!).
+require_package_name=func_require_package_name
+func_require_package_name ()
+{
+ $debug_cmd
+
+ func_extract_trace AC_INIT
+
+ save_ifs=$IFS
+ IFS=:
+ set dummy $func_extract_trace_result
+ IFS=$save_ifs
+ shift
+
+ test -n "$package_name" || package_name=$1
+ func_check_configuration package_name \
+ "AC_INIT([name of your package], [package version number])"
+ func_verbose "package_name='$package_name'"
+
+ require_package_name=:
+}
+
+
+# require_package_version
+# -----------------------
+# Ensure that this has a sensible value, extracted from 'configure.ac'
+# if appropriate (and possible!). While we might have set all the
+# parameters extracted from AC_INIT at once, 'package_version' in
+# particular is not necessarily available as early as the others, since
+# 'git-version-gen' is often involved, and until then we can't rely on
+# getting a correct version number from an AC_INIT extraction.
+require_package_version=func_require_package_version
+func_require_package_version ()
+{
+ $debug_cmd
+
+ func_extract_trace AC_INIT
+
+ save_ifs=$IFS
+ IFS=:
+ set dummy $func_extract_trace_result
+ IFS=$save_ifs
+ shift
+
+ test -n "$package_version" || package_version=$2
+ test -n "$package_version" || {
+ # The embedded echo is to squash whitespace before globbing.
+ case " "`echo $gnulib_modules`" " in
+ *" git-version-gen "*)
+ func_fatal_error "\
+cannot \$require_package_version in bootstrap.conf before
+func_gnulib_tool has installed the 'git-version-gen' script."
+ ;;
+ *)
+ func_check_configuration package_version \
+ "AC_INIT([name of your package], [package version number])"
+ ;;
+ esac
+ }
+ func_verbose "package_version='$package_version'"
+
+ require_package_version=:
+}
+
+
+# require_patch
+# -------------
+# Find patch, according to the PATCH environment variable, or else
+# searching the user's PATH.
+require_patch=func_require_patch
+func_require_patch ()
+{
+ $debug_cmd
+
+ test -n "$PATCH" || {
+ # Find a patch program, preferring gpatch, which is usually better
+ # than the vendor patch.
+ func_find_tool PATCH gpatch patch
+ }
+
+ test -n "$PATCH" || func_fatal_error "\
+Please install GNU Patch, or 'export PATCH=/path/to/gnu/patch'."
+
+ func_verbose "export PATCH='$PATCH'"
+
+ # Make sure the search result is visible to subshells
+ export PATCH
+
+ require_patch=:
+}
+
+
+# require_source_base
+# -------------------
+# Ensure that source_base has a sensible value, extracted from
+# 'gnulib-cache.m4' if possible.
+require_source_base=func_require_source_base
+func_require_source_base ()
+{
+ $debug_cmd
+
+ $require_gnulib_cache
+
+ test -f "$gnulib_cache" && test -z "$source_base" && {
+ func_extract_trace_first "gl_SOURCE_BASE" "$gnulib_cache"
+
+ source_base=$func_extract_trace_first_result
+
+ func_verbose "source_base='$source_base'"
+ }
+
+ require_source_base=:
+}
+
+
+# require_vc_ignore_files
+# -----------------------
+# Ensure that '$vc_ignore' has been processed to list VCS ignore files
+# in '$vc_ignore_files'
+require_vc_ignore_files=func_require_vc_ignore_files
+func_require_vc_ignore_files ()
+{
+ $debug_cmd
+
+ test -n "$vc_ignore" || vc_ignore=auto
+
+ if test auto = "$vc_ignore" && test -z "$vc_ignore_files"; then
+ vc_ignore_files=
+ test -d .git && vc_ignore_files=.gitignore
+ test -d CVS && vc_ignore_files="$vc_ignore_files .cvsignore"
+ else
+ vc_ignore_files=$vc_ignore
+ fi
+
+ func_verbose "vc_ignore_files='$vc_ignore_files'"
+
+ require_vc_ignore_files=:
+}
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of 'bootstrap'.
+
+# func_len STRING
+# ---------------
+# STRING may not start with a hyphen.
+if (eval 'x=123; test x${#x} = "x3"') 2>/dev/null
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=${#1}
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=`expr "$1" : ".*" 2>/dev/null || echo 0`
+ }
+fi
+
+
+# func_cmp_s FILE1 FILE2
+# ----------------------
+# Return non-zero exit status unless FILE1 and FILE2 are identical, without
+# any output at all, even error messages.
+func_cmp_s ()
+{
+ $debug_cmd
+
+ # This function relies on non-zero exit status, which will cause the
+ # program to exit when running in 'set -e' mode.
+ $CMP "$@" >/dev/null 2>&1
+}
+
+
+# func_grep_q EXPRESSION [FILENAME..]
+# -----------------------------------
+# Check whether EXPRESSION matches any line of any listed FILENAME,
+# without any output at all, even error messages.
+func_grep_q ()
+{
+ $debug_cmd
+
+ # This function relies on non-zero exit status, which will cause the
+ # program to exit when running in 'set -e' mode.
+ $GREP "$@" >/dev/null 2>&1
+}
+
+
+# func_ifcontains LIST MEMBER YES-CMD [NO-CMD]
+# --------------------------------------------
+# If whitespace-separated LIST contains MEMBER then execute YES-CMD,
+# otherwise if NO-CMD was given, execute that.
+func_ifcontains ()
+{
+ $debug_cmd
+
+ _G_wslist=$1
+ _G_member=$2
+ _G_yes_cmd=$3
+ _G_no_cmd=${4-":"}
+
+ _G_found=false
+ for _G_item in $_G_wslist; do
+ test "x$_G_item" = "x$_G_member" && {
+ _G_found=:
+ break
+ }
+ done
+ if $_G_found; then
+ eval "$_G_yes_cmd"
+ _G_status=$?
+ else
+ eval "$_G_no_cmd"
+ _G_status=$?
+ fi
+
+ test 0 -eq "$_G_status" || exit $_G_status
+}
+
+
+# func_strpad STR WIDTH CHAR
+# --------------------------
+# Trim STR, or pad with CHAR to force a total length of WIDTH.
+func_strpad ()
+{
+ $debug_cmd
+
+ _G_width=`expr "$2" - 1`
+ func_strpad_result=`$ECHO "$1" |$SED '
+ :a
+ s|^.\{0,'"$_G_width"'\}$|&'"$3"'|
+ ta
+ '`
+}
+
+
+# func_strrpad STR WIDTH CHAR
+# ---------------------------
+# Trim STR, or right-justify-pad with CHAR to force a total length of
+# WIDTH.
+func_strrpad ()
+{
+ $debug_cmd
+
+ _G_width=`expr "$2" - 1`
+ func_strrpad_result=`$ECHO "$1" |$SED '
+ :a
+ s|^.\{0,'"$_G_width"'\}$|'"$3"'&|
+ ta
+ '`
+}
+
+
+# func_strrow INDENT FIELD WIDTH [FIELDn WIDTHn]...
+# -------------------------------------------------
+# Return a string containing each FIELD left justified to WIDTH, with
+# the whole thing indented by INDENT spaces. This function is used to
+# render one row of aligned columns for a table by func_strtable().
+func_strrow ()
+{
+ $debug_cmd
+
+ func_strrow_linelen=$1; shift
+
+ _G_row=
+ while test $# -gt 0; do
+ func_strrow_linelen=`expr $func_strrow_linelen + $2`
+ func_strpad "$1" $2 " "
+ func_append _G_row "$func_strpad_result"
+ shift; shift
+ done
+
+ func_strrpad "$_G_row" $func_strrow_linelen " "
+ func_strrow_result=$func_strrpad_result
+}
+
+
+# func_strtable INDENT WIDTH1...WIDTHn HEADER1...HEADERn FIELD1...FIELDn
+# ----------------------------------------------------------------------
+# Generate a string of newline-separated rows arranged in lined-up
+# columns of the given WIDTHs, with the entire table indented by INDENT
+# spaces. The number of columns is determined by the number of integer
+# valued WIDTH arguments following INDENT. The next set (i.e. a number
+# of arguments equal to the number of WIDTH arguments) of fields are
+# treated as the table's column HEADERs, and are separated from the
+# remainder of the table by an indented row of '-' characters. Remaining
+# arguments are each aligned below the next available header, wrapping
+# to a new row as necessary. Finally another row of '-' characters is
+# added to mark the end of the table.
+#
+# For example an unindented 3 column table with 2 rows of data would be
+# generated by this call:
+#
+# func_strtable 3 20 10 25 \
+# Header1 Header2 Header3 \
+# Row1Col1 Row1Col2 Row1Col3 \
+# Row2Col1 Row2Col2 Row2Col3
+#
+# returning the following string:
+#
+# " Header1 Header2 Header3
+# -------------------------------------------------------
+# Row1Col1 Row1Col2 Row1Col3
+# Row2Col1 Row2Col2 Row2Col3
+# -------------------------------------------------------"
+func_strtable ()
+{
+ $debug_cmd
+
+ # Save the indent value, we'll need it for each row we render.
+ _G_indent=$1; shift
+
+ # Collect remaining numeric args into a list for reuse between
+ # members of each row when we call func_strrow later.
+ _G_widths=$1; shift
+ while test 0 -lt `expr "$1" : '[1-9][0-9]*$'`; do
+ func_append _G_widths " $1"; shift
+ done
+
+ # Extract the same number of positional parameters as there are
+ # width elements - we'll do the header rows separately so that
+ # we can insert a divider line.
+ _G_header=$_G_indent
+ for _G_width in $_G_widths; do
+ func_append _G_header " $1 $_G_width"; shift
+ done
+ func_strrow $_G_header
+
+ # Strip off the indent, and make a divider with '-' chars, then
+ # reindent.
+ _G_divider=`$ECHO "$func_strrow_result" \
+ |$SED 's|[^ ]|-|g
+ :a
+ s|- |--|g
+ ta
+ '`
+
+ # Append the header and divider to the running result.
+ func_append func_strtable_result "\
+$func_strrow_result
+$_G_divider
+"
+
+ # The remaining rows are zipped between the width values we
+ # unwound earlier just like the header row above.
+ while test $# -gt 0; do
+ _G_row=$_G_indent
+ for _G_width in $_G_widths; do
+ func_append _G_row " $1 $_G_width"; shift
+ done
+ func_strrow $_G_row
+ func_append func_strtable_result "\
+$func_strrow_result
+"
+ done
+
+ # Mark the end of the table with a final divider line.
+ func_append func_strtable_result "$_G_divider"
+}
+
+
+# func_internal_error ARG...
+# --------------------------
+# Echo program name prefixed message to standard error, and exit.
+func_internal_error ()
+{
+ func_fatal_error "\
+INTERNAL: " ${1+"$@"} "
+ Please report this bug to 'bug-gnulib@gnu.org'
+ in as much detail as possible."
+}
+
+
+# func_permissions_error FILE-OR-DIRECTORY
+# ----------------------------------------
+# Echo program name prefixed permissions error message to standard
+# error, and exit.
+func_permissions_error ()
+{
+ $debug_cmd
+
+ func_fatal_error "Failed to create '$1', check permissions."
+}
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_silent is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ ${opt_silent-'false'} || {
+ func_quote eval $_G_cmd
+ eval func_truncate_cmd $func_quote_result
+ func_echo "running: $tc_bold$func_truncate_cmd_result$tc_reset"
+ }
+
+ ${opt_dry_run-'false'} || {
+ eval "$_G_cmd"
+ _G_status=$?
+ test 0 -eq "$_G_status" || eval "(exit $_G_status); $_G_fail_exp"
+ }
+}
+
+
+# func_truncate_cmd CMD [ARG]...
+# ------------------------------
+# For unreasonably long commands (such as a gnulib-tool invocation with
+# the full module list for import), truncate CMD after the second non-
+# option ARG.
+func_truncate_cmd ()
+{
+ $debug_cmd
+
+ _G_last_arg_opt_p=false
+ func_truncate_cmd_result=
+
+ set dummy "$@"; shift
+
+ while test $# -gt 0; do
+ _G_opt=$1; shift
+
+ test -n "$func_truncate_cmd_result" \
+ && func_append func_truncate_cmd_result ' '
+ func_append func_truncate_cmd_result "$_G_opt"
+
+ func_len "x$func_truncate_cmd_result"
+
+ case $_G_opt in
+ -*) _G_last_arg_opt_p=: ;;
+ *) $_G_last_arg_opt_p \
+ || test "$min_cmd_len" -gt "$func_len_result" \
+ || break
+ _G_last_arg_opt_p=false
+ ;;
+ esac
+ done
+
+ test $# -gt 0 && func_append func_truncate_cmd_result "..."
+}
+
+
+# func_gitignore_entries FILE...
+# ------------------------------
+# Strip blank and comment lines to leave significant entries.
+func_gitignore_entries ()
+{
+ $debug_cmd
+
+ $SED -e '/^#/d' -e '/^$/d' "$@"
+}
+
+
+# func_insert_if_absent STR FILE...
+# ---------------------------------
+# If $STR is not already on a line by itself in $FILE, insert it, at the
+# start. Entries are inserted at the start of the ignore list to ensure
+# existing entries starting with ! are not overridden. Such entries
+# support whilelisting exceptions after a more generic blacklist pattern.
+# sorting the new contents of the file and replacing $FILE with the result.
+func_insert_if_absent ()
+{
+ $debug_cmd
+
+ str=$1
+ shift
+
+ for file
+ do
+ test -f "$file" || touch "$file"
+
+ duplicate_entries=`func_gitignore_entries "$file" |sort |uniq -d`
+ test -n "$duplicate_entries" \
+ && func_error "duplicate entries in $file: " $duplicate_entries
+
+ func_grep_q "^$str\$" "$file" \
+ || func_verbose "inserting '$str' into '$file'"
+
+ linesold=`func_gitignore_entries "$file" |wc -l`
+ linesnew=`{ $ECHO "$str"; cat "$file"; } \
+ |func_gitignore_entries |sort -u |wc -l`
+ test "$linesold" -eq "$linesnew" \
+ || { $SED "1i\\$nl$str$nl" "$file" >"$file"T && mv "$file"T "$file"; } \
+ || func_permissions_error "$file"
+ done
+}
+
+
+# func_get_version APP
+# --------------------
+# echo the version number (if any) of APP, which is looked up along your
+# PATH.
+func_get_version ()
+{
+ $debug_cmd
+
+ _G_app=$1
+
+ # Rather than uncomment the sed script in-situ, strip the comments
+ # programatically before passing the result to $SED for evaluation.
+ sed_get_version=`$ECHO '# extract version within line
+ s|.*[v ]\{1,\}\([0-9]\{1,\}\.[.a-z0-9-]*\).*|\1|
+ t done
+
+ # extract version at start of line
+ s|^\([0-9]\{1,\}\.[.a-z0-9-]*\).*|\1|
+ t done
+
+ d
+
+ :done
+ # the following essentially does s|5.005|5.5|
+ s|\.0*\([1-9]\)|.\1|g
+ p
+ q' \
+ |$SED '/^[ ]*#.*$/d'`
+
+ func_tool_version_output $_G_app >/dev/null
+ _G_status=$?
+
+ test 0 -ne "$_G_status" \
+ || $_G_app --version 2>&1 |$SED -n "$sed_get_version"
+
+ (exit $_G_status)
+}
+
+
+# func_check_tool APP
+# -------------------
+# Search PATH for an executable at APP.
+func_check_tool ()
+{
+ $debug_cmd
+
+ func_check_tool_result=
+
+ case $1 in
+ *[\\/]*)
+ test -x "$1" && func_check_tool_result=$1
+ ;;
+ *)
+ save_IFS=$IFS
+ IFS=${PATH_SEPARATOR-:}
+ for _G_check_tool_path in $PATH; do
+ IFS=$save_IFS
+ if test -x "$_G_check_tool_path/$1"; then
+ func_check_tool_result=$_G_check_tool_path/$1
+ break
+ fi
+ done
+ IFS=$save_IFS
+ ;;
+ esac
+}
+
+
+# func_check_versions APP1 VER1 URL1 ...[APPN VERN URLN]
+# ------------------------------------------------------
+func_check_versions ()
+{
+ $debug_cmd
+
+ func_check_versions_result=:
+
+ while test $# -gt 0; do
+ _G_app=$1; shift
+ _G_reqver=$1; shift
+ _G_url=$1; shift
+
+ # Diagnose bad buildreq formatting.
+ case $_G_url in
+ [a-z]*://*) ;; # looks like a url
+ *) func_fatal_error "\
+'$_G_url' from the buildreq table in
+'bootstrap.conf' does not look like the URL for downloading
+$_G_app. Please ensure that buildreq is a strict newline
+delimited list of triples; 'program min-version url'."
+ ;;
+ esac
+
+ # Honor $APP variables ($TAR, $AUTOCONF, etc.)
+ _G_appvar=`echo $_G_app |tr '[a-z]' '[A-Z]'`
+ test TAR = "$_G_appvar" && _G_appvar=AMTAR
+ eval "_G_app=\${$_G_appvar-$_G_app}"
+
+ # Fail if no version specified, but the program can't be found.
+ if test x- = "x$_G_reqver"; then
+ func_check_tool $_G_app
+ if test -z "$func_check_tool_result"; then
+ func_error "Prerequisite '$_G_app' not not found. Please install it, or
+'export $_G_appvar=/path/to/$_G_app'."
+ func_check_versions_result=false
+ else
+ func_verbose "found '$func_check_tool_result' for $_G_appvar."
+ fi
+ else
+ _G_instver=`func_get_version $_G_app`
+
+ # Fail if --version didn't work.
+ if test -z "$_G_instver"; then
+ func_error "Prerequisite '$_G_app' not found. Please install it, or
+'export $_G_appvar=/path/to/$_G_app'."
+ func_check_versions_result=false
+
+ # Fail if a newer version than what we have is required.
+ else
+ func_verbose "found '$_G_app' version $_G_instver."
+
+ case $_G_reqver in
+ =*)
+ # If $buildreq version starts with '=', version must
+ # match the installed program exactly.
+ test "x$_G_reqver" = "x=$_G_instver" || {
+ func_error "\
+ '$_G_app' version == $_G_instver is too old
+ 'exactly $_G_app-$_G_reqver is required"
+ func_check_versions_result=false
+ }
+ ;;
+ *)
+ # Otherwise, anything that is not older is a match.
+ func_lt_ver "$_G_reqver" "$_G_instver" || {
+ func_error "\
+ '$_G_app' version == $_G_instver is too old
+ '$_G_app' version >= $_G_reqver is required"
+ func_check_versions_result=false
+ }
+ ;;
+ esac
+ fi
+ fi
+ done
+}
+
+
+# func_cleanup_gnulib
+# -------------------
+# Recursively delete everything below the path in the global variable
+# GNULIB_PATH.
+func_cleanup_gnulib ()
+{
+ $debug_cmd
+
+ _G_status=$?
+ $RM -fr "$gnulib_path"
+ exit $_G_status
+}
+
+
+# func_download_po_files SUBDIR DOMAIN
+# ------------------------------------
+func_download_po_files ()
+{
+ $debug_cmd
+
+ func_echo "getting translations into $1 for $2..."
+ _G_cmd=`printf "$po_download_command_format" "$2" "$1"`
+ eval "$_G_cmd"
+}
+
+
+# func_update_po_files PO_DIR DOMAIN
+# ----------------------------------
+# Mirror .po files to $po_dir/.reference and copy only the new
+# or modified ones into $po_dir. Also update $po_dir/LINGUAS.
+# Note po files that exist locally only are left in $po_dir but will
+# not be included in LINGUAS and hence will not be distributed.
+func_update_po_files ()
+{
+ $debug_cmd
+
+ # Directory containing primary .po files.
+ # Overwrite them only when we're sure a .po file is new.
+ _G_po_dir=$1
+ _G_domain=$2
+
+ # Mirror *.po files into this dir.
+ # Usually contains *.s1 checksum files.
+ _G_ref_po_dir=$_G_po_dir/.reference
+
+ test -d "$_G_ref_po_dir" || mkdir $_G_ref_po_dir || return
+ func_download_po_files $_G_ref_po_dir $_G_domain \
+ && ls "$_G_ref_po_dir"/*.po 2>/dev/null \
+ |$SED -e 's|.*/||' -e 's|\.po$||' > "$_G_po_dir/LINGUAS" || return
+
+ # Find sha1sum, named gsha1sum on MacPorts, and shasum on MacOS 10.6+.
+ func_find_tool SHA1SUM sha1sum gsha1sum shasum sha1
+
+ test -n "$SHA1SUM" || func_fatal_error "\
+Please install GNU Coreutils, or 'export SHA1SUM=/path/to/sha1sum'."
+
+ _G_langs=`cd $_G_ref_po_dir && echo *.po|$SED 's|\.po||g'`
+ test '*' = "$_G_langs" && _G_langs=x
+ for _G_po in $_G_langs; do
+ case $_G_po in x) continue;; esac
+ _G_new_po=$_G_ref_po_dir/$_G_po.po
+ _G_cksum_file=$_G_ref_po_dir/$_G_po.s1
+ if ! test -f "$_G_cksum_file" ||
+ ! test -f "$_G_po_dir/$_G_po.po" ||
+ ! $SHA1SUM -c "$_G_cksum_file" \
+ < "$_G_new_po" > /dev/null; then
+ echo "updated $_G_po_dir/$_G_po.po..."
+ cp "$_G_new_po" "$_G_po_dir/$_G_po.po" \
+ && $SHA1SUM < "$_G_new_po" > "$_G_cksum_file" || return
+ fi
+ done
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h'. Add to this in 'bootstrap.conf'
+# if you accept any additional options.
+usage_message="Common Bootstrap Options:
+ -c, --copy copy files instead of creating symbolic links.
+ --debug enable verbose shell tracing
+ -n, --dry-run print commands rather than running them
+ -f, --force attempt to bootstrap even if the sources seem not
+ to have been checked out.
+ --gnulib-srcdir=DIRNAME
+ specify a local directory where gnulib sources
+ reside. Use this if you already have the gnulib
+ sources on your machine, and don't want to waste
+ your bandwidth downloading them again. Defaults to
+ \$GNULIB_SRCDIR.
+ --no-warnings equivalent to '-Wnone'
+ --skip-git do not fetch files from remote repositories
+ --skip-po do not download po files.
+ -v, --verbose verbosely report processing
+ --version print version information and exit
+ -W, --warnings=CATEGORY
+ report the warnings falling in CATEGORY [all]
+ -h, --help print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message=$long_help_message"
+ 'recommend' show warnings about missing recommended packages
+ 'settings' show warnings about missing '$progname.conf' settings
+ 'upgrade' show warnings about out-dated files
+
+If the file '$progname.conf' exists in the same directory as this
+script, its contents are read as shell variables to configure the
+bootstrap.
+
+For build prerequisites, environment variables like \$AUTOCONF and
+\$AMTAR are honored.
+
+Running without arguments will suffice in most cases.
+"
+
+# Warning categories used by 'bootstrap', append others if you use them
+# in your 'bootstrap.conf'.
+warning_categories='recommend settings upgrade'
+
+
+# bootstrap_options_prep [ARG]...
+# -------------------------------
+# Preparation for options parsed by Bootstrap.
+bootstrap_options_prep ()
+{
+ $debug_cmd
+
+ # Option defaults:
+ opt_copy=${copy-'false'}
+ opt_dry_run=false
+ opt_force=false
+ opt_gnulib_srcdir=$GNULIB_SRCDIR
+ opt_skip_git=false
+ opt_skip_po=false
+
+ # Pass back the list of options we consumed.
+ func_quote eval ${1+"$@"}
+ bootstrap_options_prep_result=$func_quote_result
+}
+func_add_hook func_options_prep bootstrap_options_prep
+
+
+# bootstrap_parse_options [ARG]...
+# --------------------------------
+# Provide handling for Bootstrap specific options.
+bootstrap_parse_options ()
+{
+ $debug_cmd
+
+ # Perform our own loop to consume as many options as possible in
+ # each iteration.
+ while test $# -gt 0; do
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --dry-run|--dryrun|-n)
+ opt_dry_run=: ;;
+ --copy|-c) opt_copy=: ;;
+ --force|-f) opt_force=: ;;
+
+ --gnulib-srcdir)
+ test $# = 0 && func_missing_arg $_G_opt && break
+ opt_gnulib_srcdir=$1
+ shift
+ ;;
+
+ --skip-git|--no-git)
+ opt_skip_git=:
+ ;;
+
+ --skip-po|--no-po)
+ opt_skip_po=:
+ ;;
+
+ # Separate non-argument short options:
+ -c*|-f*|-n*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "-$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+ esac
+ done
+
+ # save modified positional parameters for caller
+ func_quote eval ${1+"$@"}
+ bootstrap_parse_options_result=$func_quote_result
+}
+func_add_hook func_parse_options bootstrap_parse_options
+
+
+# bootstrap_validate_options [ARG]...
+# -----------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+bootstrap_validate_options ()
+{
+ $debug_cmd
+
+ # Validate options.
+ test $# -gt 0 \
+ && func_fatal_help "too many arguments"
+
+ # Pass back the (empty) list of unconsumed options.
+ func_quote eval ${1+"$@"}
+ bootstrap_validate_options_result=$func_quote_result
+}
+func_add_hook func_validate_options bootstrap_validate_options
+
+
+## -------------------------------------------------- ##
+## Source package customisations in 'bootstrap.conf'. ##
+## -------------------------------------------------- ##
+
+# Override the default configuration, if necessary.
+# Make sure that bootstrap.conf is sourced from the current directory
+# if we were invoked as "sh bootstrap".
+case $0 in
+ */*) test -r "$0.conf" && . "$0.conf" ;;
+ *) test -r "$0.conf" && . ./"$0.conf" ;;
+esac
+
+
+## ------------------------------- ##
+## Actually perform the bootstrap. ##
+## ------------------------------- ##
+
+func_bootstrap ${1+"$@"}
+
+# The End.
+exit ${exit_status-$EXIT_SUCCESS}
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "500/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
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