#!/bin/sh
#
# ngIRCd -- The Next Generation IRC Daemon
-# Copyright (c)2001-2004 Alexander Barton <alex@barton.de>
+# Copyright (c)2001-2008 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
# (at your option) any later version.
# Please read the file COPYING, README and AUTHORS for more information.
#
-# $Id: autogen.sh,v 1.8 2004/03/11 22:21:20 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
- name="$1"
+ searchlist="$1"
major="$2"
minor=99
- type "${name}" >/dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "${name}"
- return 0
- fi
+ [ -n "$PREFIX" ] && searchlist="${PREFIX}/$1 ${PREFIX}/bin/$1 $searchlist"
- while [ $minor -ge 0 ]; do
- type "${name}${major}${minor}" >/dev/null 2>&1
+ for name in $searchlist; do
+ $EXIST "${name}" >/dev/null 2>&1
if [ $? -eq 0 ]; then
- echo "${name}${major}${minor}"
+ echo "${name}"
return 0
fi
- type "${name}-${major}.${minor}" >/dev/null 2>&1
- if [ $? -eq 0 ]; then
- echo "${name}-${major}.${minor}" >/dev/null 2>&1
- 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 $minor - 1`
done
return 1
unset LC_ALL
unset LANG
-# We want to use GNU automake 1.7, if available (WANT_AUTOMAKE is used by
-# the wrapper scripts of Gentoo Linux):
-WANT_AUTOMAKE=1.7
-export WANT_AUTOMAKE
+# Which command should be used to detect the automake/autoconf tools?
+[ -z "$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 \"$EXIST\" to test for tools."
# Try to detect the needed tools when no environment variable already
-# spezifies one:
+# specifies one:
echo "Searching tools ..."
[ -z "$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=$AUTOCONF"
-# Some debugging output ...
-if [ -n "$DEBUG" ]; then
- echo "ACLOCAL=$ACLOCAL"
- echo "AUTOHEADER=$AUTOHEADER"
- echo "AUTOMAKE=$AUTOMAKE"
- echo "AUTOCONF=$AUTOCONF"
-fi
+# 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" ] && Notfounf autoconf
+[ -z "$ACLOCAL" ] && Notfound aclocal
[ -z "$AUTOHEADER" ] && Notfound autoheader
[ -z "$AUTOMAKE" ] && Notfound automake
[ -z "$AUTOCONF" ] && Notfound autoconf
-export AUTOCONF AUTOHEADER AUTOMAKE AUTOCONF
+export ACLOCAL AUTOHEADER AUTOMAKE AUTOCONF
# Generate files
echo "Generating files ..."
$AUTOMAKE --add-missing && \
$AUTOCONF
-if [ $? -eq 0 ]; then
+if [ $? -eq 0 -a -x ./configure ]; then
# Success: if we got some parameters we call ./configure and pass
# all of them to it.
- if [ -n "$*" -a -x ./configure ]; then
- echo "Calling generated \"configure\" script ..."
- ./configure $*
+ if [ "$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."