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#!/bin/sh
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# ngIRCd -- The Next Generation IRC Daemon
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# Copyright (c)2001-2015 Alexander Barton (alex@barton.de) and Contributors
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# Please read the file COPYING, README and AUTHORS for more information.
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# Usage:
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# [VAR=<value>] ./autogen.sh [<configure-args>]
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# This script generates the ./configure script using GNU automake and
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# GNU autoconf. It tries to be smart in finding the correct/usable/available
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# installed versions of these tools on your system.
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# In addition, it enables or disables the "de-ANSI-fication" support of GNU
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# automake, which is supported up to autoconf 1.11.x an has been removed
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# in automake 1.12 -- make sure to use a version of automake supporting it
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# when generating distribution archives!
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# The following strategy is used for each of aclocal, autoheader, automake,
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# and autoconf: first, "tool" (the regular name of the tool, e. g. "autoconf"
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# or "automake") is checked. If this fails, "tool<major><minor>" (for example
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# "automake16") and "tool-<major>.<minor>" (e. g. "autoconf-2.54") are tried
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# with <major> being 2 for tool of GNU autoconf and 1 for tools of automake;
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# <minor> is tried from 99 to 0. The first occurrence will be used.
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# When you pass <configure-args> to autogen.sh it will call the generated
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# ./configure script on success and pass these parameters to it.
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# You can tweak the behaviour using these environment variables:
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# - ACLOCAL=<cmd>, AUTOHEADER=<cmd>, AUTOMAKE=<cmd>, AUTOCONF=<cmd>
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# Name and optionally path to the particular tool.
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# - PREFIX=<path>
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# Search the GNU autoconf and GNU automake tools in <path> first. If the
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# generated ./configure script will be called, pass "--prefix=<path>" to it.
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# - EXIST=<tool>
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# Use <tool> to test for aclocal, autoheader etc. pp. ...
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# When not specified, either "type" or "which" is used.
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# - VERBOSE=1
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# Output the detected names of the GNU automake and GNU autoconf tools.
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# - GO=1
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# Call ./configure even if no arguments have been passed to autogen.sh.
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# Examples:
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# - ./autogen.sh
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# Generates the ./configure script.
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# - GO=1 ./autogen.sh
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# Generates the ./configure script and runs it as "./configure".
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# - VERBOSE=1 ./autogen.sh --with-ident
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# Show tool names, generates the ./configure script, and runs it with
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# these arguments: "./configure --with-ident".
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# - ACLOCAL=aclocal-1.6 GO=1 PREFIX=$HOME ./autogen.sh
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# Uses "aclocal-1.6" as aclocal tool, generates the ./configure script,
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# and runs it with these arguments: "./configure --prefix=$HOME".
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Search()
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[ $# -eq 2 ] || exit 1
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searchlist="$1"
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major="$2"
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minor=99
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[ -n "$PREFIX" ] && searchlist="${PREFIX}/$1 ${PREFIX}/bin/$1 $searchlist"
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for name in $searchlist; do
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$EXIST "${name}" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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"${name}" --version 2>&1 \
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| grep -v "environment variable" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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echo "${name}"
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return 0
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while [ $minor -ge 0 ]; do
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for name in $searchlist; do
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$EXIST "${name}${major}${minor}" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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echo "${name}${major}${minor}"
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return 0
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$EXIST "${name}-${major}.${minor}" >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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echo "${name}-${major}.${minor}"
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return 0
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minor=$(expr $minor - 1)
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return 1
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Notfound()
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echo "Error: $* not found!"
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echo 'Please install supported versions of GNU autoconf, GNU automake'
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echo 'and pkg-config: see the INSTALL file for details.'
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[ "$VERBOSE" = "1" ] && echo " - running \"$*\" ..."
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# Reset locale settings to suppress warning messages of Perl
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unset LC_ALL
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unset LANG
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# Which command should be used to detect the automake/autoconf tools?
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[ -z "$EXIST" ] && existlist="type which" || existlist="$EXIST"
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EXIST=""
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for t in $existlist; do
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$t /bin/ls >/dev/null 2>&1
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if [ $? -eq 0 ]; then
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rm -f /tmp/test.$$
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$t /tmp/test.$$ >/dev/null 2>&1
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[ $? -ne 0 ] && EXIST="$t"
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[ -n "$EXIST" ] && break
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if [ -z "$EXIST" ]; then
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echo "Didn't detect a working command to test for the autoconf/automake tools!"
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echo "Searchlist: $existlist"
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[ "$VERBOSE" = "1" ] && echo "Using \"$EXIST\" to test for tools."
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# Try to detect the needed tools when no environment variable already
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# specifies one:
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echo "Searching for required tools ..."
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[ -z "$ACLOCAL" ] && ACLOCAL=$(Search aclocal 1)
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[ "$VERBOSE" = "1" ] && echo " - ACLOCAL=$ACLOCAL"
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[ -z "$AUTOHEADER" ] && AUTOHEADER=$(Search autoheader 2)
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[ "$VERBOSE" = "1" ] && echo " - AUTOHEADER=$AUTOHEADER"
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[ -z "$AUTOMAKE" ] && AUTOMAKE=$(Search automake 1)
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[ "$VERBOSE" = "1" ] && echo " - AUTOMAKE=$AUTOMAKE"
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[ -z "$AUTOCONF" ] && AUTOCONF=$(Search autoconf 2)
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[ "$VERBOSE" = "1" ] && echo " - AUTOCONF=$AUTOCONF"
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AUTOCONF_VERSION=$(echo "$AUTOCONF" | cut -d'-' -f2-)
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[ -n "$AUTOCONF_VERSION" ] && [ "$AUTOCONF_VERSION" != "autoconf" ] \
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&& export AUTOCONF_VERSION || unset AUTOCONF_VERSION
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[ "$VERBOSE" = "1" ] && echo " - AUTOCONF_VERSION=$AUTOCONF_VERSION"
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AUTOMAKE_VERSION=$(echo $AUTOMAKE | cut -d'-' -f2-)
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[ -n "$AUTOMAKE_VERSION" ] && [ "$AUTOMAKE_VERSION" != "automake" ] \
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&& export AUTOMAKE_VERSION || unset AUTOMAKE_VERSION
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[ "$VERBOSE" = "1" ] && echo " - AUTOMAKE_VERSION=$AUTOMAKE_VERSION"
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[ $# -gt 0 ] && CONFIGURE_ARGS=" $*" || CONFIGURE_ARGS=""
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[ -z "$GO" ] && [ -n "$CONFIGURE_ARGS" ] && GO=1
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# Verify that all tools have been found
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command -v pkg-config >/dev/null || Notfound pkg-config
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[ -z "$ACLOCAL" ] && Notfound aclocal
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[ -z "$AUTOHEADER" ] && Notfound autoheader
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[ -z "$AUTOMAKE" ] && Notfound automake
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[ -z "$AUTOCONF" ] && Notfound autoconf
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AM_VERSION=$($AUTOMAKE --version | head -n 1 | sed -e 's/.* //g')
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ifs=$IFS; IFS="."; set $AM_VERSION; IFS=$ifs
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AM_MAJOR="$1"; AM_MINOR="$2"
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echo "Detected automake $AM_VERSION ..."
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AM_MAKEFILES="src/ipaddr/Makefile.ng src/ngircd/Makefile.ng src/testsuite/Makefile.ng src/tool/Makefile.ng"
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# De-ANSI-fication?
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if [ "$AM_MAJOR" -eq "1" ] && [ "$AM_MINOR" -lt "12" ]; then
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# automake < 1.12 => automatic de-ANSI-fication support available
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echo " - Enabling de-ANSI-fication support."
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sed -e "s|^__ng_PROTOTYPES__|AM_C_PROTOTYPES|g" configure.ng >configure.ac
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DEANSI_START=""
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DEANSI_END=""
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# automake >= 1.12 => no de-ANSI-fication support available
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echo " - Disabling de-ANSI-fication support."
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sed -e "s|^__ng_PROTOTYPES__|AC_C_PROTOTYPES|g" configure.ng >configure.ac
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DEANSI_START="#"
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DEANSI_END=" (disabled by ./autogen.sh script)"
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# Serial test harness?
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if [ "$AM_MAJOR" -eq "1" ] && [ "$AM_MINOR" -ge "13" ]; then
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# automake >= 1.13 => enforce "serial test harness"
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echo " - Enforcing serial test harness."
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SERIAL_TESTS="serial-tests"
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# automake < 1.13 => no new test harness, nothing to do
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# shellcheck disable=SC2034
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SERIAL_TEST=""
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sed -e "s|^__ng_Makefile_am_template__|AUTOMAKE_OPTIONS = ${SERIAL_TESTS} ${DEANSI_START}ansi2knr${DEANSI_END}|g" \
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src/portab/Makefile.ng >src/portab/Makefile.am
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for makefile_ng in $AM_MAKEFILES; do
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makefile_am=$(echo "$makefile_ng" | sed -e "s|\.ng\$|\.am|g")
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sed -e "s|^__ng_Makefile_am_template__|AUTOMAKE_OPTIONS = ${SERIAL_TESTS} ${DEANSI_START}../portab/ansi2knr${DEANSI_END}|g" \
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$makefile_ng >$makefile_am
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export ACLOCAL AUTOHEADER AUTOMAKE AUTOCONF
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# Generate files
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echo "Generating files using \"$AUTOCONF\" and \"$AUTOMAKE\" ..."
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Run $ACLOCAL && \
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Run $AUTOCONF && \
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Run $AUTOHEADER && \
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Run $AUTOMAKE --add-missing --no-force
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if [ $? -eq 0 ] && [ -x ./configure ]; then
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# Success: if we got some parameters we call ./configure and pass
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# all of them to it.
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NAME=$(grep PACKAGE_STRING= configure | cut -d"'" -f2)
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if [ "$GO" = "1" ]; then
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[ -n "$PREFIX" ] && p=" --prefix=$PREFIX" || p=""
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c="./configure${p}${CONFIGURE_ARGS}"
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echo "Okay, autogen.sh for $NAME done."
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echo "Calling \"$c\" ..."
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exit $?
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echo "Okay, autogen.sh for $NAME done."
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echo "Now run the \"./configure\" script."
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# Failure!?
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echo "Error! Check your installation of GNU automake and autoconf!"
