#! /usr/bin/env sh ## DO NOT EDIT - This file generated from ./build-aux/ltmain.in ## by inline-source v2019-02-19.15
# libtool (GNU libtool) 2.5.4 # Provide generalized library-building support services. # Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
# Copyright (C) 1996-2019, 2021-2024 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, # if you distribute this file as part of a program or library that # is built using GNU Libtool, you may include this file under the # same distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>.
# After configure completes, it has a better idea of some of the # shell tools we need than the defaults used by the functions shared # with bootstrap, so set those here where they can still be over- # ridden by the user, but otherwise take precedence.
# Much of our low-level functionality needs to be sourced from external # libraries, which are installed to $pkgauxdir.
# Set a version string for this script.
scriptversion=2019-02-19.15; # 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) 2004-2019, 2021, 2023-2024 Bootstrap Authors # # This file is dual licensed under the terms of the MIT license # <https://opensource.org/licenses/MIT>, and GPL version 2 or later # <https://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.
# 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.
# 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 # These NLS vars are set unconditionally (bootstrap issue #24). Unset those # in case the environment reset is needed later and the $save_* variant is not # defined (see the code above).
LC_ALL=C
LANGUAGE=C export LANGUAGE LC_ALL
# Make sure IFS has a sensible default
sp=' '
nl=' '
IFS="$sp $nl"
# There are apparently some systems that use ';' as a PATH separator! if test "${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
# 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
}
# 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
}
# 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.
# 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"
# require_check_ifs_backslash # --------------------------- # Check if we can use backslash as IFS='\' separator, and set # $check_ifs_backshlash_broken to ':' or 'false'.
require_check_ifs_backslash=func_require_check_ifs_backslash
func_require_check_ifs_backslash ()
{
_G_save_IFS=$IFS
IFS='\'
_G_check_ifs_backshlash='a\\b' for _G_i in $_G_check_ifs_backshlash do
case $_G_i in
a)
check_ifs_backshlash_broken=false
;; '')
break
;;
*)
check_ifs_backshlash_broken=:
break
;;
esac done
IFS=$_G_save_IFS
require_check_ifs_backslash=:
}
## ----------------- ## ## 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.
# 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
# This section contains definitions for functions that each ensure a # particular resource (a file, or a non-empty configuration variable for # example) is available, and if appropriate to extract default values # from pertinent package files. Call them using their associated # 'require_*' variable to ensure that they are executed, at most, once. # # It's entirely deliberate that calling these functions can set # variables that don't obey the namespace limitations obeyed by the rest # of this file, in order that that they be as useful as possible to # callers.
# require_term_colors # ------------------- # Allow display of bold text on terminals that support it.
require_term_colors=func_require_term_colors
func_require_term_colors ()
{
$debug_cmd
test -t 1 && { # COLORTERM and USE_ANSI_COLORS environment variables take # precedence, because most terminfo databases neglect to describe # whether color sequences are supported.
test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
if test 1 = "$USE_ANSI_COLORS"; then # Standard ANSI escape sequences
tc_reset='[0m'
tc_bold='[1m'; tc_standout='[7m'
tc_red='[31m'; tc_green='[32m'
tc_blue='[34m'; tc_cyan='[36m' else # Otherwise trust the terminfo database after all.
test -n "`tput sgr0 2>/dev/null`" && {
tc_reset=`tput sgr0`
test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
tc_standout=$tc_bold
test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
} fi
}
require_term_colors=:
}
## ----------------- ## ## Function library. ## ## ----------------- ##
# This section contains a variety of useful functions to call in your # scripts. Take note of the portable wrappers for features provided by # some modern shells, which will fall back to slower equivalents on # less featureful shells.
# func_append VAR VALUE # --------------------- # Append VALUE onto the existing contents of VAR.
# We should try to minimise forks, especially on Windows where they are # unreasonably slow, so skip the feature probes when bash or zsh are # being used: if test set = "${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*) ;;
*)
: ${_G_HAVE_PLUSEQ_OP="yes"}
;;
esac fi
# _G_HAVE_PLUSEQ_OP # Can be empty, in which case the shell is probed, "yes" if += is # usable or anything else if it does not work.
test -z "$_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=\$$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 ()
{
$debug_cmd
# func_basename FILE # ------------------ # Set func_basename_result to FILE with everything up to and including # the last / stripped. if test yes = "$_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 "$func_dirname_result" # basename: Compute filename of FILE. # value returned in "$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 ()
{
$debug_cmd
# Strip color escape sequences before counting printable length for _G_tc in "$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
# 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=`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 "$_G_directory_path"; do # ...make a list in topmost first order. Use a colon delimited # list in case some portion of path contains whitespace.
_G_dir_list=$_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
# 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
$require_check_ifs_backslash
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
*[\\\`\"\$]*) # Fallback to sed for $func_check_bs_ifs_broken=:, or when the string # contains the shell wildcard characters.
case $check_ifs_backshlash_broken$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
$opt_dry_run || { eval"$_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
$opt_dry_run || { eval"$_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
# 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 ()
{
$debug_cmd
# func_lt_ver PREV CURR # --------------------- # Return true if PREV and CURR are in the correct order according to # func_sort_ver, otherwise false. Use it like this: # # func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
func_lt_ver ()
{
$debug_cmd
test "x$1" = x`func_sort_ver "$1""$2" | $SED 1q`
}
# 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) 2010-2019, 2021, 2023-2024 Bootstrap Authors # # This file is dual licensed under the terms of the MIT license # <https://opensource.org/licenses/MIT>, and GPL version 2 or later # <https://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.
# Set a version string for this script.
scriptversion=2019-02-19.15; # 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 "$func_options_result"; shift # ...rest of your script... # # In order for the '--version' option to work, you will need to have a # suitably formatted comment like the one at the top of this file # starting with '# Written by ' and ending with '# Copyright'. # # For '-h' and '--help' to work, you will also need a one line # description of your script's purpose in a comment directly above the # '# Written by ' line, like the one at the top of this file. # # The default options also support '--debug', which will turn on shell # execution tracing (see the comment above debug_cmd below for another # use), and '--verbose' and the func_verbose function to allow your script # to display verbose messages only when your user has specified # '--verbose'. # # After sourcing this file, you can plug in processing for additional # options by amending the variables from the 'Configuration' section # below, and following the instructions in the 'Option parsing' # section further down.
# You should override these variables in your script after sourcing this # file so that they reflect the customisations you have added to the # option parser.
# The usage line for option parsing errors and the start of '-h' and # '--help' output messages. You can embed shell variables for delayed # expansion at the time the message is displayed, but you will need to # quote other shell meta-characters carefully to prevent them being # expanded when the contents are evaled.
usage='$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."
# 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
# 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 ()
{
$debug_cmd
func_propagate_result_result=: ifeval"test \"\${${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
}
# 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 [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
# 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: '$1'"
;;
esac
shift
;;
# Separate optargs to long options (plugins may need this):
--*=*) func_split_equals "$_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
;;
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
}
# 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
# 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 ()
{
$debug_cmd
# func_split_short_opt SHORTOPT # ----------------------------- # Set func_split_short_opt_name and func_split_short_opt_arg shell # variables after splitting SHORTOPT after the 2nd character. if test yes = "$_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_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
}
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