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configure
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#! /bin/sh
# Forbidden tokens and exceptions.
# Actually reserved by M4sh.
# Wrap our cleanup prior to m4sugar's cleanup.
# All the M4sugar macros start with `m4_', except `dnl' kept as is
# for sake of simplicity.
# If __m4_version__ is defined, we assume that we are being run by M4
# 1.6 or newer, thus recursion is linear, and debugmode(+do)
# is available for faster checks of dereferencing undefined macros
# and forcing dumpdef to print to stderr regardless of debugfile.
# But if it is missing, we assume we are being run by M4 1.4.x, that
# recursion is quadratic, and that we need foreach-based
# replacement macros. Also, m4 prior to 1.4.8 loses track of location
# during m4wrap text; __line__ should never be 0.
#
# Use the raw builtin to avoid tripping up include tracing.
# Meanwhile, avoid m4_copy, since it temporarily undefines m4_defn.
# -*- Autoconf -*-
# This file is part of Autoconf.
# foreach-based replacements for recursive functions.
# Speeds up GNU M4 1.4.x by avoiding quadratic $@ recursion, but penalizes
# GNU M4 1.6 by requiring more memory and macro expansions.
#
# Copyright (C) 2008 Free Software Foundation, Inc.
#
# 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 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# As a special exception, the Free Software Foundation gives unlimited
# permission to copy, distribute and modify the configure scripts that
# are the output of Autoconf. You need not follow the terms of the GNU
# General Public License when using or distributing such scripts, even
# though portions of the text of Autoconf appear in them. The GNU
# General Public License (GPL) does govern all other use of the material
# that constitutes the Autoconf program.
#
# Certain portions of the Autoconf source text are designed to be copied
# (in certain cases, depending on the input) into the output of
# Autoconf. We call these the "data" portions. The rest of the Autoconf
# source text consists of comments plus executable code that decides which
# of the data portions to output in any given case. We call these
# comments and executable code the "non-data" portions. Autoconf never
# copies any of the non-data portions into its output.
#
# This special exception to the GPL applies to versions of Autoconf
# released by the Free Software Foundation. When you make and
# distribute a modified version of Autoconf, you may extend this special
# exception to the GPL to apply to your modified version as well, *unless*
# your modified version has the potential to copy into its output some
# of the text that was the non-data portion of the version that you started
# with. (In other words, unless your change moves or copies text from
# the non-data portions to the data portions.) If your modification has
# such potential, you must delete any notice of this special exception
# to the GPL from your modified version.
#
# Written by Eric Blake.
#
# In M4 1.4.x, every byte of $@ is rescanned. This means that an
# algorithm on n arguments that recurses with one less argument each
# iteration will scan n * (n + 1) / 2 arguments, for O(n^2) time. In
# M4 1.6, this was fixed so that $@ is only scanned once, then
# back-references are made to information stored about the scan.
# Thus, n iterations need only scan n arguments, for O(n) time.
# Additionally, in M4 1.4.x, recursive algorithms did not clean up
# memory very well, requiring O(n^2) memory rather than O(n) for n
# iterations.
#
# This file is designed to overcome the quadratic nature of $@
# recursion by writing a variant of m4_foreach that uses m4_for rather
# than $@ recursion to operate on the list. This involves more macro
# expansions, but avoids the need to rescan a quadratic number of
# arguments, making these replacements very attractive for M4 1.4.x.
# On the other hand, in any version of M4, expanding additional macros
# costs additional time; therefore, in M4 1.6, where $@ recursion uses
# fewer macros, these replacements actually pessimize performance.
# Additionally, the use of $10 to mean the tenth argument violates
# POSIX; although all versions of m4 1.4.x support this meaning, a
# future m4 version may switch to take it as the first argument
# concatenated with a literal 0, so the implementations in this file
# are not future-proof. Thus, this file is conditionally included as
# part of m4_init(), only when it is detected that M4 probably has
# quadratic behavior (ie. it lacks the macro __m4_version__).
#
# Please keep this file in sync with m4sugar.m4.
# _m4_foreach(PRE, POST, IGNORED, ARG...)
# ---------------------------------------
# Form the common basis of the m4_foreach and m4_map macros. For each
# ARG, expand PRE[ARG]POST[]. The IGNORED argument makes recursion
# easier, and must be supplied rather than implicit.
#
# This version minimizes the number of times that $@ is evaluated by
# using m4_for to generate a boilerplate into _m4_f then passing $@ to
# that temporary macro. Thus, the recursion is done in m4_for without
# reparsing any user input, and is not quadratic. For an idea of how
# this works, note that m4_foreach(i,[1,2],[i]) calls
# _m4_foreach([m4_define([i],],[)i],[],[1],[2])
# which defines _m4_f:
# $1[$4]$2[]$1[$5]$2[]_m4_popdef([_m4_f])
# then calls _m4_f([m4_define([i],],[)i],[],[1],[2]) for a net result:
# m4_define([i],[1])i[]m4_define([i],[2])i[]_m4_popdef([_m4_f]).
# m4_case(SWITCH, VAL1, IF-VAL1, VAL2, IF-VAL2, ..., DEFAULT)
# -----------------------------------------------------------
# Find the first VAL that SWITCH matches, and expand the corresponding
# IF-VAL. If there are no matches, expand DEFAULT.
#
# Use m4_for to create a temporary macro in terms of a boilerplate
# m4_if with final cleanup. If $# is even, we have DEFAULT; if it is
# odd, then rounding the last $# up in the temporary macro is
# harmless. For example, both m4_case(1,2,3,4,5) and
# m4_case(1,2,3,4,5,6) result in the intermediate _m4_case being
# m4_if([$1],[$2],[$3],[$1],[$4],[$5],_m4_popdef([_m4_case])[$6])
# m4_bmatch(SWITCH, RE1, VAL1, RE2, VAL2, ..., DEFAULT)
# -----------------------------------------------------
# m4 equivalent of
#
# if (SWITCH =~ RE1)
# VAL1;
# elif (SWITCH =~ RE2)
# VAL2;
# elif ...
# ...
# else
# DEFAULT
#
# We build the temporary macro _m4_b:
# m4_define([_m4_b], _m4_defn([_m4_bmatch]))_m4_b([$1], [$2], [$3])...
# _m4_b([$1], [$m-1], [$m])_m4_b([], [], [$m+1]_m4_popdef([_m4_b]))
# then invoke m4_unquote(_m4_b($@)), for concatenation with later text.
# m4_cond(TEST1, VAL1, IF-VAL1, TEST2, VAL2, IF-VAL2, ..., [DEFAULT])
# -------------------------------------------------------------------
# Similar to m4_if, except that each TEST is expanded when encountered.
# If the expansion of TESTn matches the string VALn, the result is IF-VALn.
# The result is DEFAULT if no tests passed. This macro allows
# short-circuiting of expensive tests, where it pays to arrange quick
# filter tests to run first.
#
# m4_cond already guarantees either 3*n or 3*n + 1 arguments, 1 <= n.
# We only have to speed up _m4_cond, by building the temporary _m4_c:
# m4_define([_m4_c], _m4_defn([m4_unquote]))_m4_c([m4_if(($1), [($2)],
# [[$3]m4_define([_m4_c])])])_m4_c([m4_if(($4), [($5)],
# [[$6]m4_define([_m4_c])])])..._m4_c([m4_if(($m-2), [($m-1)],
# [[$m]m4_define([_m4_c])])])_m4_c([[$m+1]]_m4_popdef([_m4_c]))
# We invoke m4_unquote(_m4_c($@)), for concatenation with later text.
# m4_bpatsubsts(STRING, RE1, SUBST1, RE2, SUBST2, ...)
# ----------------------------------------------------
# m4 equivalent of
#
# $_ = STRING;
# s/RE1/SUBST1/g;
# s/RE2/SUBST2/g;
# ...
#
# m4_bpatsubsts already validated an odd number of arguments; we only
# need to speed up _m4_bpatsubsts. To avoid nesting, we build the
# temporary _m4_p:
# m4_define([_m4_p], [$1])m4_define([_m4_p],
# m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$2], [$3]))m4_define([_m4_p],
# m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$4], [$5]))m4_define([_m4_p],...
# m4_bpatsubst(m4_dquote(_m4_defn([_m4_p])), [$m-1], [$m]))m4_unquote(
# _m4_defn([_m4_p])_m4_popdef([_m4_p]))
# m4_shiftn(N, ...)
# -----------------
# Returns ... shifted N times. Useful for recursive "varargs" constructs.
#
# m4_shiftn already validated arguments; we only need to speed up
# _m4_shiftn. If N is 3, then we build the temporary _m4_s, defined as
# ,[$5],[$6],...,[$m]_m4_popdef([_m4_s])
# before calling m4_shift(_m4_s($@)).
# m4_do(STRING, ...)
# ------------------
# This macro invokes all its arguments (in sequence, of course). It is
# useful for making your macros more structured and readable by dropping
# unnecessary dnl's and have the macros indented properly.
#
# Here, we use the temporary macro _m4_do, defined as
# $1[]$2[]...[]$n[]_m4_popdef([_m4_do])
# m4_dquote_elt(ARGS)
# -------------------
# Return ARGS as an unquoted list of double-quoted arguments.
#
# _m4_foreach to the rescue.
# m4_reverse(ARGS)
# ----------------
# Output ARGS in reverse order.
#
# Invoke _m4_r($@) with the temporary _m4_r built as
# [$m], [$m-1], ..., [$2], [$1]_m4_popdef([_m4_r])
# m4_map_args_pair(EXPRESSION, [END-EXPR = EXPRESSION], ARG...)
# -------------------------------------------------------------
# Perform a pairwise grouping of consecutive ARGs, by expanding
# EXPRESSION([ARG1], [ARG2]). If there are an odd number of ARGs, the
# final argument is expanded with END-EXPR([ARGn]).
#
# Build the temporary macro _m4_map_args_pair, with the $2([$m+1])
# only output if $# is odd:
# $1([$3], [$4])[]$1([$5], [$6])[]...$1([$m-1],
# [$m])[]m4_default([$2], [$1])([$m+1])[]_m4_popdef([_m4_map_args_pair])
# m4_join(SEP, ARG1, ARG2...)
# ---------------------------
# Produce ARG1SEPARG2...SEPARGn. Avoid back-to-back SEP when a given ARG
# is the empty string. No expansion is performed on SEP or ARGs.
#
# Use a self-modifying separator, since we don't know how many
# arguments might be skipped before a separator is first printed, but
# be careful if the separator contains $. _m4_foreach to the rescue.
# m4_joinall(SEP, ARG1, ARG2...)
# ------------------------------
# Produce ARG1SEPARG2...SEPARGn. An empty ARG results in back-to-back SEP.
# No expansion is performed on SEP or ARGs.
#
# A bit easier than m4_join. _m4_foreach to the rescue.
# m4_list_cmp(A, B)
# -----------------
# Compare the two lists of integer expressions A and B.
#
# m4_list_cmp takes care of any side effects; we only override
# _m4_list_cmp_raw, where we can safely expand lists multiple times.
# First, insert padding so that both lists are the same length; the
# trailing +0 is necessary to handle a missing list. Next, create a
# temporary macro to perform pairwise comparisons until an inequality
# is found. For example, m4_list_cmp([1], [1,2]) creates _m4_cmp as
# m4_if(m4_eval([($1) != ($3)]), [1], [m4_cmp([$1], [$3])],
# m4_eval([($2) != ($4)]), [1], [m4_cmp([$2], [$4])],
# [0]_m4_popdef([_m4_cmp]))
# then calls _m4_cmp([1+0], [0*2], [1], [2+0])
# m4_max(EXPR, ...)
# m4_min(EXPR, ...)
# -----------------
# Return the decimal value of the maximum (or minimum) in a series of
# integer expressions.
#
# _m4_foreach to the rescue; we only need to replace _m4_minmax. Here,
# we need a temporary macro to track the best answer so far, so that
# the foreach expression is tractable.
# m4_set_add_all(SET, VALUE...)
# -----------------------------
# Add each VALUE into SET. This is O(n) in the number of VALUEs, and
# can be faster than calling m4_set_add for each VALUE.
#
# _m4_foreach to the rescue. If no deletions have occurred, then
# avoid the speed penalty of m4_set_add.
# Rewrite the first entry of the diversion stack.
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.64.
#
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software
# Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##
# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${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 '${1+"$@"}'='"$@"'
setopt NO_GLOB_SUBST
else
case `(set -o) 2>/dev/null` in #(
*posix*) :
set -o posix ;; #(
*) :
;;
esac
fi
as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
&& (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
as_echo='print -r --'
as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
as_echo='printf %s\n'
as_echo_n='printf %s'
else
if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
as_echo_n='/usr/ucb/echo -n'
else
as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
as_echo_n_body='eval
arg=$1;
case $arg in #(
*"$as_nl"*)
expr "X$arg" : "X\\(.*\\)$as_nl";
arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
esac;
expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
'
export as_echo_n_body
as_echo_n='sh -c $as_echo_n_body as_echo'
fi
export as_echo_body
as_echo='sh -c $as_echo_body as_echo'
fi
# The user is always right.
if test "${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
# IFS
# We need space, tab and new line, in precisely that order. Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" "" $as_nl"
# Find who we are. Look in the path if we contain no directory separator.
case $0 in #((
*[\\/]* ) as_myself=$0 ;;
*) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
done
IFS=$as_save_IFS
;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
as_myself=$0
fi
if test ! -f "$as_myself"; then
$as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
exit 1
fi
# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there. '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
&& ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '
# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE
# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
if test "x$CONFIG_SHELL" = x; then
as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
emulate sh
NULLCMD=:
# Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
# is contrary to our usage. Disable this feature.
alias -g '\${1+\"\$@\"}'='\"\$@\"'
setopt NO_GLOB_SUBST
else
case \`(set -o) 2>/dev/null\` in #(
*posix*) :
set -o posix ;; #(
*) :
;;
esac
fi
"
as_required="as_fn_return () { (exit \$1); }
as_fn_success () { as_fn_return 0; }
as_fn_failure () { as_fn_return 1; }
as_fn_ret_success () { return 0; }
as_fn_ret_failure () { return 1; }
exitcode=0
as_fn_success || { exitcode=1; echo as_fn_success failed.; }
as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
else
exitcode=1; echo positional parameters were not saved.
fi
test x\$exitcode = x0 || exit 1"
as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
test \$(( 1 + 1 )) = 2 || exit 1"
if (eval "$as_required") 2>/dev/null; then :
as_have_required=yes
else
as_have_required=no
fi
if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
as_found=:
case $as_dir in #(
/*)
for as_base in sh bash ksh sh5; do
# Try only shells that exist, to save several forks.
as_shell=$as_dir/$as_base
if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
{ $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
CONFIG_SHELL=$as_shell as_have_required=yes
if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
break 2
fi
fi
done;;
esac
as_found=false
done
$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
{ $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
CONFIG_SHELL=$SHELL as_have_required=yes
fi; }
IFS=$as_save_IFS
if test "x$CONFIG_SHELL" != x; then :
# We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
fi
if test x$as_have_required = xno; then :
$as_echo "$0: This script requires a shell more modern than all"
$as_echo "$0: the shells that I found on your system."
if test x${ZSH_VERSION+set} = xset ; then
$as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
$as_echo "$0: be upgraded to zsh 4.3.4 or later."
else
$as_echo "$0: Please tell [email protected] about your system,
$0: including any error possibly output before this
$0: message. Then install a modern shell, or manually run
$0: the script under such a shell if you do have one."
fi
exit 1
fi
fi
fi
SHELL=${CONFIG_SHELL-/bin/sh}
export SHELL
# Unset more variables known to interfere with behavior of common tools.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS
## --------------------- ##
## M4sh Shell Functions. ##
## --------------------- ##
# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
{ eval $1=; unset $1;}
}
as_unset=as_fn_unset
# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
return $1
} # as_fn_set_status
# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
set +e
as_fn_set_status $1
exit $1
} # as_fn_exit
# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{
case $as_dir in #(
-*) as_dir=./$as_dir;;
esac
test -d "$as_dir" || eval $as_mkdir_p || {
as_dirs=
while :; do
case $as_dir in #(
*\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
*) as_qdir=$as_dir;;
esac
as_dirs="'$as_qdir' $as_dirs"
as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$as_dir" : 'X\(//\)[^/]' \| \
X"$as_dir" : 'X\(//\)$' \| \
X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
s//\1/
q
}
s/.*/./; q'`
test -d "$as_dir" && break
done
test -z "$as_dirs" || eval "mkdir $as_dirs"
} || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
} # as_fn_mkdir_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
eval 'as_fn_append ()
{
eval $1+=\$2
}'
else
as_fn_append ()
{
eval $1=\$$1\$2
}
fi # as_fn_append
# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
eval 'as_fn_arith ()
{
as_val=$(( $* ))
}'
else
as_fn_arith ()
{
as_val=`expr "$@" || test $? -eq 1`
}
fi # as_fn_arith
# as_fn_error ERROR [LINENO LOG_FD]
# ---------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with status $?, using 1 if that was 0.
as_fn_error ()
{
as_status=$?; test $as_status -eq 0 && as_status=1
if test "$3"; then
as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
$as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
fi
$as_echo "$as_me: error: $1" >&2
as_fn_exit $as_status
} # as_fn_error
if expr a : '\(a\)' >/dev/null 2>&1 &&
test "X`expr 00001 : '.*\(...\)'`" = X001; then
as_expr=expr
else
as_expr=false
fi
if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
as_basename=basename
else
as_basename=false
fi
if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
as_dirname=dirname
else
as_dirname=false
fi
as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
X"$0" : 'X\(//\)$' \| \
X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
sed '/^.*\/\([^/][^/]*\)\/*$/{
s//\1/
q
}
/^X\/\(\/\/\)$/{
s//\1/
q
}
/^X\/\(\/\).*/{
s//\1/
q
}
s/.*/./; q'`
# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits
as_lineno_1=$LINENO as_lineno_1a=$LINENO
as_lineno_2=$LINENO as_lineno_2a=$LINENO
eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
# Blame Lee E. McMahon (1931-1989) for sed's syntax. :-)
sed -n '
p
/[$]LINENO/=
' <$as_myself |
sed '
s/[$]LINENO.*/&-/
t lineno
b
:lineno
N
:loop
s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
t loop
s/-\n.*//
' >$as_me.lineno &&
chmod +x "$as_me.lineno" ||
{ $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
# Don't try to exec as it changes $[0], causing all sort of problems
# (the dirname of $[0] is not the place where we might find the
# original and so on. Autoconf is especially sensitive to this).
. "./$as_me.lineno"
# Exit status is that of the last command.
exit
}
ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
case `echo 'xy\c'` in
*c*) ECHO_T=' ';; # ECHO_T is single tab character.
xy) ECHO_C='\c';;
*) echo `echo ksh88 bug on AIX 6.1` > /dev/null
ECHO_T=' ';;
esac;;
*)
ECHO_N='-n';;
esac
rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
rm -f conf$$.dir/conf$$.file
else
rm -f conf$$.dir
mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
if ln -s conf$$.file conf$$ 2>/dev/null; then
as_ln_s='ln -s'
# ... but there are two gotchas:
# 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
# 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
# In both cases, we have to default to `cp -p'.
ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
as_ln_s='cp -p'
elif ln conf$$.file conf$$ 2>/dev/null; then
as_ln_s=ln
else
as_ln_s='cp -p'
fi
else
as_ln_s='cp -p'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null
if mkdir -p . 2>/dev/null; then
as_mkdir_p='mkdir -p "$as_dir"'
else
test -d ./-p && rmdir ./-p
as_mkdir_p=false
fi
if test -x / >/dev/null 2>&1; then
as_test_x='test -x'
else
if ls -dL / >/dev/null 2>&1; then
as_ls_L_option=L
else
as_ls_L_option=
fi
as_test_x='
eval sh -c '\''
if test -d "$1"; then
test -d "$1/.";
else
case $1 in #(
-*)set "./$1";;
esac;
case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
???[sx]*):;;*)false;;esac;fi
'\'' sh
'
fi
as_executable_p=$as_test_x
# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
# Check that we are running under the correct shell.
SHELL=${CONFIG_SHELL-/bin/sh}
case X$lt_ECHO in
X*--fallback-echo)
# Remove one level of quotation (which was required for Make).
ECHO=`echo "$lt_ECHO" | sed 's,\\\\\$\\$0,'$0','`
;;
esac
ECHO=${lt_ECHO-echo}
if test "X$1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
elif test "X$1" = X--fallback-echo; then
# Avoid inline document here, it may be left over
:
elif test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' ; then
# Yippee, $ECHO works!
:
else
# Restart under the correct shell.
exec $SHELL "$0" --no-reexec ${1+"$@"}
fi
if test "X$1" = X--fallback-echo; then
# used as fallback echo
shift
cat <<_LT_EOF
$*
_LT_EOF
exit 0
fi
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
if test -z "$lt_ECHO"; then
if test "X${echo_test_string+set}" != Xset; then
# find a string as large as possible, as long as the shell can cope with it
for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
# expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
if { echo_test_string=`eval $cmd`; } 2>/dev/null &&
{ test "X$echo_test_string" = "X$echo_test_string"; } 2>/dev/null
then
break
fi
done
fi
if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
:
else
# The Solaris, AIX, and Digital Unix default echo programs unquote
# backslashes. This makes it impossible to quote backslashes using
# echo "$something" | sed 's/\\/\\\\/g'
#
# So, first we look for a working echo in the user's PATH.
lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
for dir in $PATH /usr/ucb; do
IFS="$lt_save_ifs"
if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
ECHO="$dir/echo"
break
fi
done
IFS="$lt_save_ifs"
if test "X$ECHO" = Xecho; then
# We didn't find a better echo, so look for alternatives.
if test "X`{ print -r '\t'; } 2>/dev/null`" = 'X\t' &&
echo_testing_string=`{ print -r "$echo_test_string"; } 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# This shell has a builtin print -r that does the trick.
ECHO='print -r'
elif { test -f /bin/ksh || test -f /bin/ksh$ac_exeext; } &&
test "X$CONFIG_SHELL" != X/bin/ksh; then
# If we have ksh, try running configure again with it.
ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
export ORIGINAL_CONFIG_SHELL
CONFIG_SHELL=/bin/ksh
export CONFIG_SHELL
exec $CONFIG_SHELL "$0" --no-reexec ${1+"$@"}
else
# Try using printf.
ECHO='printf %s\n'
if test "X`{ $ECHO '\t'; } 2>/dev/null`" = 'X\t' &&
echo_testing_string=`{ $ECHO "$echo_test_string"; } 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# Cool, printf works
:
elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`($ORIGINAL_CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
export CONFIG_SHELL
SHELL="$CONFIG_SHELL"
export SHELL
ECHO="$CONFIG_SHELL $0 --fallback-echo"
elif echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`($CONFIG_SHELL "$0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
ECHO="$CONFIG_SHELL $0 --fallback-echo"
else
# maybe with a smaller string...
prev=:
for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
if { test "X$echo_test_string" = "X`eval $cmd`"; } 2>/dev/null
then
break
fi
prev="$cmd"
done
if test "$prev" != 'sed 50q "$0"'; then
echo_test_string=`eval $prev`
export echo_test_string
exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "$0" ${1+"$@"}
else
# Oops. We lost completely, so just stick with echo.
ECHO=echo
fi
fi
fi
fi