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ngircd/autogen.sh
Alexander Barton 77939c382d Updated preferred automake version to 1.9. Only set preferences if not
already defined by some environment variables.
2007-10-07 13:02:15 +00:00

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#!/bin/sh
#
# ngIRCd -- The Next Generation IRC Daemon
# Copyright (c)2001-2004 Alexander Barton <alex@barton.de>
#
# 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 of the License, or
# (at your option) any later version.
# Please read the file COPYING, README and AUTHORS for more information.
#
# $Id: autogen.sh,v 1.15 2007/10/07 13:02:15 alex Exp $
#
#
# Usage: [VAR=<value>] ./autogen.sh [<configure-args>]
#
# This script generates the ./configure script using GNU automake and
# GNU autoconf. It tries to be smart in finding the correct/usable/available
# installed versions of these tools on your system.
#
# The following strategy is used for each of aclocal, autoheader, automake,
# and autoconf: first, "tool" (the regular name of the tool, e. g. "autoconf"
# or "automake") is checked. If this fails, "tool<major><minor>" (for example
# "automake16") and "tool-<major>.<minor>" (e. g. "autoconf-2.54") are tried
# with <major> being 2 for tool of GNU autoconf and 1 for tools of automake;
# <minor> is tried from 99 to 0. The first occurrence will be used.
#
# When you pass <configure-args> to autogen.sh it will call the generated
# ./configure script on success and pass these parameters to it.
#
# You can tweak the behaviour using these environment variables:
#
# - ACLOCAL=<cmd>, AUTOHEADER=<cmd>, AUTOMAKE=<cmd>, AUTOCONF=<cmd>
# Name and optionally path to the particular tool.
# - PREFIX=<path>
# Search the GNU autoconf and GNU automake tools in <path> first. If the
# generated ./configure script will be called, pass "--prefix=<path>" to it.
# - EXIST=<tool>
# Use <tool> to test for aclocal, autoheader etc. pp. ...
# When not specified, either "type" or "which" is used.
# - VERBOSE=1
# Output the detected names of the GNU automake and GNU autoconf tools.
# - GO=1
# Call ./configure even if no arguments have been passed to autogen.sh.
#
# Examples:
#
# - ./autogen.sh
# Generates the ./configure script.
# - GO=1 ./autogen.sh
# Generates the ./configure script and runs it as "./configure".
# - VERBOSE=1 ./autogen.sh --with-ident
# Show tool names, generates the ./configure script, and runs it with
# these arguments: "./configure --with-ident".
# - ACLOCAL=aclocal-1.6 GO=1 PREFIX=$HOME ./autogen.sh
# Uses "aclocal-1.6" as aclocal tool, generates the ./configure script,
# and runs it with these arguments: "./configure --prefix=$HOME".
#
Search()
{
[ $# -eq 2 ] || exit 1
searchlist="$1"
major="$2"
minor=99
[ -n "$PREFIX" ] && searchlist="${PREFIX}/$1 ${PREFIX}/bin/$1 $searchlist"
for name in $searchlist; do
$EXIST "${name}" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "${name}"
return 0
fi
done
while [ $minor -ge 0 ]; do
for name in $searchlist; do
$EXIST "${name}${major}${minor}" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "${name}${major}${minor}"
return 0
fi
$EXIST "${name}-${major}.${minor}" >/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "${name}-${major}.${minor}"
return 0
fi
done
minor=`expr $minor - 1`
done
return 1
}
Notfound()
{
echo "Error: $* not found!"
echo "Please install recent versions of GNU autoconf and GNU automake."
exit 1
}
# Reset locale settings to suppress warning messages of Perl
unset LC_ALL
unset LANG
# Which command should be used to detect the automake/autoconf tools?
[ -z "$EXIST" ] && existlist="type which" || existlist="$EXIST"
EXIST=""
for t in $existlist; do
$t /bin/ls >/dev/null 2>&1
if [ $? -eq 0 ]; then
rm -f /tmp/test.$$
$t /tmp/test.$$ >/dev/null 2>&1
[ $? -ne 0 ] && EXIST="$t"
fi
[ -n "$EXIST" ] && break
done
if [ -z "$EXIST" ]; then
echo "Didn't detect a working command to test for the autoconf/automake tools!"
echo "Searchlist: $existlist"
exit 1
fi
[ "$VERBOSE" = "1" ] && echo "Using \"$EXIST\" to test for tools."
# We want to use GNU automake 1.9, if available (WANT_AUTOMAKE is used by
# the wrapper scripts of Gentoo Linux, AUTOMAKE_VERSION is used by OpenBSD);
# same applies for GNU autoconf, we want to use version 2.59. -- But only
# set these preferences if not already set!
if [ -z "$AUTOMAKE_VERSION" -a -z "$WANT_AUTOMAKE" ]; then
AUTOMAKE_VERSION=1.9
WANT_AUTOMAKE=1.9
fi
if [ -z "$AUTOCONF_VERSION" -a -z "$WANT_AUTOCONF" ]; then
AUTOCONF_VERSION=2.59
WANT_AUTOCONF=2.59
fi
export AUTOMAKE_VERSION WANT_AUTOMAKE AUTOCONF_VERSION WANT_AUTOCONF
# Try to detect the needed tools when no environment variable already
# specifies one:
echo "Searching tools ..."
[ -z "$ACLOCAL" ] && ACLOCAL=`Search aclocal 1`
[ "$VERBOSE" = "1" ] && echo "ACLOCAL=$ACLOCAL"
[ -z "$AUTOHEADER" ] && AUTOHEADER=`Search autoheader 2`
[ "$VERBOSE" = "1" ] && echo "AUTOHEADER=$AUTOHEADER"
[ -z "$AUTOMAKE" ] && AUTOMAKE=`Search automake 1`
[ "$VERBOSE" = "1" ] && echo "AUTOMAKE=$AUTOMAKE"
[ -z "$AUTOCONF" ] && AUTOCONF=`Search autoconf 2`
[ "$VERBOSE" = "1" ] && echo "AUTOCONF=$AUTOCONF"
# Call ./configure when parameters have been passed to this script and
# GO isn't already defined.
[ -z "$GO" -a $# -gt 0 ] && GO=1
# Verify that all tools have been found
[ -z "$AUTOCONF" ] && Notfound autoconf
[ -z "$AUTOHEADER" ] && Notfound autoheader
[ -z "$AUTOMAKE" ] && Notfound automake
[ -z "$AUTOCONF" ] && Notfound autoconf
export AUTOCONF AUTOHEADER AUTOMAKE AUTOCONF
# Generate files
echo "Generating files ..."
$ACLOCAL && \
$AUTOHEADER && \
$AUTOMAKE --add-missing && \
$AUTOCONF
if [ $? -eq 0 -a -x ./configure ]; then
# Success: if we got some parameters we call ./configure and pass
# all of them to it.
if [ "$GO" = "1" ]; then
[ -n "$PREFIX" ] && p=" --prefix=$PREFIX" || p=""
[ -n "$*" ] && a=" $*" || a=""
c="./configure${p}${a}"
echo "Calling \"$c\" ..."
$c
exit $?
else
echo "Okay, autogen.sh done; now run the \"configure\" script."
exit 0
fi
else
# Failure!?
echo "Error! Check your installation of GNU automake and autoconf!"
exit 1
fi
# -eof-