diff options
Diffstat (limited to 'gl/build-aux/funclib.sh')
| -rw-r--r-- | gl/build-aux/funclib.sh | 1417 |
1 files changed, 0 insertions, 1417 deletions
diff --git a/gl/build-aux/funclib.sh b/gl/build-aux/funclib.sh deleted file mode 100644 index e58a7e39..00000000 --- a/gl/build-aux/funclib.sh +++ /dev/null @@ -1,1417 +0,0 @@ -# Set a version string for this script. -scriptversion=2015-11-01.21; # UTC - -# General shell script boiler plate, and helper functions. -# Written by Gary V. Vaughan, 2004 - -# Copyright (C) 2004-2016 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3 of the License, or -# (at your option) any later version. - -# As a special exception to the GNU General Public License, if you distribute -# this file as part of a program or library that is built using GNU Libtool, -# you may include this file under the same distribution terms that you use -# for the rest of that program. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. - -# Please report bugs or propose patches to gary@gnu.org. - - -## ------ ## -## Usage. ## -## ------ ## - -# Evaluate this file near the top of your script to gain access to -# the functions and variables defined here: -# -# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh -# -# If you need to override any of the default environment variable -# settings, do that before evaluating this file. - - -## -------------------- ## -## Shell normalisation. ## -## -------------------- ## - -# Some shells need a little help to be as Bourne compatible as possible. -# Before doing anything else, make sure all that help has been provided! - -DUALCASE=1; export DUALCASE # for MKS sh -if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : - emulate sh - NULLCMD=: - # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which - # is contrary to our usage. Disable this feature. - alias -g '${1+"$@"}'='"$@"' - setopt NO_GLOB_SUBST -else - case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac -fi - -# NLS nuisances: We save the old values in case they are required later. -_G_user_locale= -_G_safe_locale= -for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES -do - eval "if test set = \"\${$_G_var+set}\"; then - save_$_G_var=\$$_G_var - $_G_var=C - export $_G_var - _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" - _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" - fi" -done - -# CDPATH. -(unset CDPATH) >/dev/null 2>&1 && unset CDPATH - -# Make sure IFS has a sensible default -sp=' ' -nl=' -' -IFS="$sp $nl" - -# There are apparently some retarded systems that use ';' as a PATH separator! -if test "${PATH_SEPARATOR+set}" != set; then - PATH_SEPARATOR=: - (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { - (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || - PATH_SEPARATOR=';' - } -fi - - - -## ------------------------- ## -## Locate command utilities. ## -## ------------------------- ## - - -# func_executable_p FILE -# ---------------------- -# Check that FILE is an executable regular file. -func_executable_p () -{ - test -f "$1" && test -x "$1" -} - - -# func_path_progs PROGS_LIST CHECK_FUNC [PATH] -# -------------------------------------------- -# Search for either a program that responds to --version with output -# containing "GNU", or else returned by CHECK_FUNC otherwise, by -# trying all the directories in PATH with each of the elements of -# PROGS_LIST. -# -# CHECK_FUNC should accept the path to a candidate program, and -# set $func_check_prog_result if it truncates its output less than -# $_G_path_prog_max characters. -func_path_progs () -{ - _G_progs_list=$1 - _G_check_func=$2 - _G_PATH=${3-"$PATH"} - - _G_path_prog_max=0 - _G_path_prog_found=false - _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} - for _G_dir in $_G_PATH; do - IFS=$_G_save_IFS - test -z "$_G_dir" && _G_dir=. - for _G_prog_name in $_G_progs_list; do - for _exeext in '' .EXE; do - _G_path_prog=$_G_dir/$_G_prog_name$_exeext - func_executable_p "$_G_path_prog" || continue - case `"$_G_path_prog" --version 2>&1` in - *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; - *) $_G_check_func $_G_path_prog - func_path_progs_result=$func_check_prog_result - ;; - esac - $_G_path_prog_found && break 3 - done - done - done - IFS=$_G_save_IFS - test -z "$func_path_progs_result" && { - echo "no acceptable sed could be found in \$PATH" >&2 - exit 1 - } -} - - -# We want to be able to use the functions in this file before configure -# has figured out where the best binaries are kept, which means we have -# to search for them ourselves - except when the results are already set -# where we skip the searches. - -# Unless the user overrides by setting SED, search the path for either GNU -# sed, or the sed that truncates its output the least. -test -z "$SED" && { - _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ - for _G_i in 1 2 3 4 5 6 7; do - _G_sed_script=$_G_sed_script$nl$_G_sed_script - done - echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed - _G_sed_script= - - func_check_prog_sed () - { - _G_path_prog=$1 - - _G_count=0 - printf 0123456789 >conftest.in - while : - do - cat conftest.in conftest.in >conftest.tmp - mv conftest.tmp conftest.in - cp conftest.in conftest.nl - echo '' >> conftest.nl - "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break - diff conftest.out conftest.nl >/dev/null 2>&1 || break - _G_count=`expr $_G_count + 1` - if test "$_G_count" -gt "$_G_path_prog_max"; then - # Best one so far, save it but keep looking for a better one - func_check_prog_result=$_G_path_prog - _G_path_prog_max=$_G_count - fi - # 10*(2^10) chars as input seems more than enough - test 10 -lt "$_G_count" && break - done - rm -f conftest.in conftest.tmp conftest.nl conftest.out - } - - func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin - rm -f conftest.sed - SED=$func_path_progs_result -} - - -# Unless the user overrides by setting GREP, search the path for either GNU -# grep, or the grep that truncates its output the least. -test -z "$GREP" && { - func_check_prog_grep () - { - _G_path_prog=$1 - - _G_count=0 - _G_path_prog_max=0 - printf 0123456789 >conftest.in - while : - do - cat conftest.in conftest.in >conftest.tmp - mv conftest.tmp conftest.in - cp conftest.in conftest.nl - echo 'GREP' >> conftest.nl - "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break - diff conftest.out conftest.nl >/dev/null 2>&1 || break - _G_count=`expr $_G_count + 1` - if test "$_G_count" -gt "$_G_path_prog_max"; then - # Best one so far, save it but keep looking for a better one - func_check_prog_result=$_G_path_prog - _G_path_prog_max=$_G_count - fi - # 10*(2^10) chars as input seems more than enough - test 10 -lt "$_G_count" && break - done - rm -f conftest.in conftest.tmp conftest.nl conftest.out - } - - func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin - GREP=$func_path_progs_result -} - - -## ------------------------------- ## -## User overridable command paths. ## -## ------------------------------- ## - -# All uppercase variable names are used for environment variables. These -# variables can be overridden by the user before calling a script that -# uses them if a suitable command of that name is not already available -# in the command search PATH. - -: ${CP="cp -f"} -: ${ECHO="printf %s\n"} -: ${EGREP="$GREP -E"} -: ${FGREP="$GREP -F"} -: ${LN_S="ln -s"} -: ${MAKE="make"} -: ${MKDIR="mkdir"} -: ${MV="mv -f"} -: ${RM="rm -f"} -: ${SHELL="${CONFIG_SHELL-/bin/sh}"} - - -## -------------------- ## -## Useful sed snippets. ## -## -------------------- ## - -sed_dirname='s|/[^/]*$||' -sed_basename='s|^.*/||' - -# Sed substitution that helps us do robust quoting. It backslashifies -# metacharacters that are still active within double-quoted strings. -sed_quote_subst='s|\([`"$\\]\)|\\\1|g' - -# Same as above, but do not quote variable references. -sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' - -# Sed substitution that turns a string into a regex matching for the -# string literally. -sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' - -# Sed substitution that converts a w32 file name or path -# that contains forward slashes, into one that contains -# (escaped) backslashes. A very naive implementation. -sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' - -# Re-'\' parameter expansions in output of sed_double_quote_subst that -# were '\'-ed in input to the same. If an odd number of '\' preceded a -# '$' in input to sed_double_quote_subst, that '$' was protected from -# expansion. Since each input '\' is now two '\'s, look for any number -# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. -_G_bs='\\' -_G_bs2='\\\\' -_G_bs4='\\\\\\\\' -_G_dollar='\$' -sed_double_backslash="\ - s/$_G_bs4/&\\ -/g - s/^$_G_bs2$_G_dollar/$_G_bs&/ - s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g - s/\n//g" - - -## ----------------- ## -## Global variables. ## -## ----------------- ## - -# Except for the global variables explicitly listed below, the following -# functions in the '^func_' namespace, and the '^require_' namespace -# variables initialised in the 'Resource management' section, sourcing -# this file will not pollute your global namespace with anything -# else. There's no portable way to scope variables in Bourne shell -# though, so actually running these functions will sometimes place -# results into a variable named after the function, and often use -# temporary variables in the '^_G_' namespace. If you are careful to -# avoid using those namespaces casually in your sourcing script, things -# should continue to work as you expect. And, of course, you can freely -# overwrite any of the functions or variables defined here before -# calling anything to customize them. - -EXIT_SUCCESS=0 -EXIT_FAILURE=1 -EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. -EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. - -# Allow overriding, eg assuming that you follow the convention of -# putting '$debug_cmd' at the start of all your functions, you can get -# bash to show function call trace with: -# -# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name -debug_cmd=${debug_cmd-":"} -exit_cmd=: - -# By convention, finish your script with: -# -# exit $exit_status -# -# so that you can set exit_status to non-zero if you want to indicate -# something went wrong during execution without actually bailing out at -# the point of failure. -exit_status=$EXIT_SUCCESS - -# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh -# is ksh but when the shell is invoked as "sh" and the current value of -# the _XPG environment variable is not equal to 1 (one), the special -# positional parameter $0, within a function call, is the name of the -# function. -progpath=$0 - -# The name of this program. -progname=`$ECHO "$progpath" |$SED "$sed_basename"` - -# Make sure we have an absolute progpath for reexecution: -case $progpath in - [\\/]*|[A-Za-z]:\\*) ;; - *[\\/]*) - progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` - progdir=`cd "$progdir" && pwd` - progpath=$progdir/$progname - ;; - *) - _G_IFS=$IFS - IFS=${PATH_SEPARATOR-:} - for progdir in $PATH; do - IFS=$_G_IFS - test -x "$progdir/$progname" && break - done - IFS=$_G_IFS - test -n "$progdir" || progdir=`pwd` - progpath=$progdir/$progname - ;; -esac - - -## ----------------- ## -## Standard options. ## -## ----------------- ## - -# The following options affect the operation of the functions defined -# below, and should be set appropriately depending on run-time para- -# meters passed on the command line. - -opt_dry_run=false -opt_quiet=false -opt_verbose=false - -# Categories 'all' and 'none' are always available. Append any others -# you will pass as the first argument to func_warning from your own -# code. -warning_categories= - -# By default, display warnings according to 'opt_warning_types'. Set -# 'warning_func' to ':' to elide all warnings, or func_fatal_error to -# treat the next displayed warning as a fatal error. -warning_func=func_warn_and_continue - -# Set to 'all' to display all warnings, 'none' to suppress all -# warnings, or a space delimited list of some subset of -# 'warning_categories' to display only the listed warnings. -opt_warning_types=all - - -## -------------------- ## -## Resource management. ## -## -------------------- ## - -# This section contains definitions for functions that each ensure a -# particular resource (a file, or a non-empty configuration variable for -# example) is available, and if appropriate to extract default values -# from pertinent package files. Call them using their associated -# 'require_*' variable to ensure that they are executed, at most, once. -# -# It's entirely deliberate that calling these functions can set -# variables that don't obey the namespace limitations obeyed by the rest -# of this file, in order that that they be as useful as possible to -# callers. - - -# require_term_colors -# ------------------- -# Allow display of bold text on terminals that support it. -require_term_colors=func_require_term_colors -func_require_term_colors () -{ - $debug_cmd - - test -t 1 && { - # COLORTERM and USE_ANSI_COLORS environment variables take - # precedence, because most terminfo databases neglect to describe - # whether color sequences are supported. - test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} - - if test 1 = "$USE_ANSI_COLORS"; then - # Standard ANSI escape sequences - tc_reset='[0m' - tc_bold='[1m'; tc_standout='[7m' - tc_red='[31m'; tc_green='[32m' - tc_blue='[34m'; tc_cyan='[36m' - else - # Otherwise trust the terminfo database after all. - test -n "`tput sgr0 2>/dev/null`" && { - tc_reset=`tput sgr0` - test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` - tc_standout=$tc_bold - test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` - test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` - test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` - test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` - test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` - } - fi - } - - require_term_colors=: -} - - -## ----------------- ## -## Function library. ## -## ----------------- ## - -# This section contains a variety of useful functions to call in your -# scripts. Take note of the portable wrappers for features provided by -# some modern shells, which will fall back to slower equivalents on -# less featureful shells. - - -# func_append VAR VALUE -# --------------------- -# Append VALUE onto the existing contents of VAR. - - # We should try to minimise forks, especially on Windows where they are - # unreasonably slow, so skip the feature probes when bash or zsh are - # being used: - if test set = "${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 ore 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 -# later used 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: |