/
autogen.sh
executable file
·1578 lines (1389 loc) · 46.3 KB
/
autogen.sh
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#!/bin/sh
# a u t o g e n . s h
#
# Copyright (c) 2005-2009 United States Government as represented by
# the U.S. Army Research Laboratory.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# 3. The name of the author may not be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
###
#
# Script for automatically preparing the sources for compilation by
# performing the myriad of necessary steps. The script attempts to
# detect proper version support, and outputs warnings about particular
# systems that have autotool peculiarities.
#
# Basically, if everything is set up and installed correctly, the
# script will validate that minimum versions of the GNU Build System
# tools are installed, account for several common configuration
# issues, and then simply run autoreconf for you.
#
# If autoreconf fails, which can happen for many valid configurations,
# this script proceeds to run manual preparation steps effectively
# providing a POSIX shell script (mostly complete) reimplementation of
# autoreconf.
#
# The AUTORECONF, AUTOCONF, AUTOMAKE, LIBTOOLIZE, ACLOCAL, AUTOHEADER
# environment variables and corresponding _OPTIONS variables (e.g.
# AUTORECONF_OPTIONS) may be used to override the default automatic
# detection behaviors. Similarly the _VERSION variables will override
# the minimum required version numbers.
#
# Examples:
#
# To obtain help on usage:
# ./autogen.sh --help
#
# To obtain verbose output:
# ./autogen.sh --verbose
#
# To skip autoreconf and prepare manually:
# AUTORECONF=false ./autogen.sh
#
# To verbosely try running with an older (unsupported) autoconf:
# AUTOCONF_VERSION=2.50 ./autogen.sh --verbose
#
# Author:
# Christopher Sean Morrison <morrison@brlcad.org>
#
# Patches:
# Sebastian Pipping <sebastian@pipping.org>
#
######################################################################
# set to minimum acceptable version of autoconf
if [ "x$AUTOCONF_VERSION" = "x" ] ; then
AUTOCONF_VERSION=2.52
fi
# set to minimum acceptable version of automake
if [ "x$AUTOMAKE_VERSION" = "x" ] ; then
AUTOMAKE_VERSION=1.11
fi
# set to minimum acceptable version of libtool
if [ "x$LIBTOOL_VERSION" = "x" ] ; then
LIBTOOL_VERSION=1.4.2
fi
##################
# ident function #
##################
ident ( ) {
# extract copyright from header
__copyright="`grep Copyright $AUTOGEN_SH | head -${HEAD_N}1 | awk '{print $4}'`"
if [ "x$__copyright" = "x" ] ; then
__copyright="`date +%Y`"
fi
# extract version from CVS Id string
__id="$Id: autogen.sh 33925 2009-03-01 23:27:06Z brlcad $"
__version="`echo $__id | sed 's/.*\([0-9][0-9][0-9][0-9]\)[-\/]\([0-9][0-9]\)[-\/]\([0-9][0-9]\).*/\1\2\3/'`"
if [ "x$__version" = "x" ] ; then
__version=""
fi
echo "autogen.sh build preparation script by Christopher Sean Morrison"
echo " + config.guess download patch by Sebastian Pipping (2008-12-03)"
echo "revised 3-clause BSD-style license, copyright (c) $__copyright"
echo "script version $__version, ISO/IEC 9945 POSIX shell script"
}
##################
# USAGE FUNCTION #
##################
usage ( ) {
echo "Usage: $AUTOGEN_SH [-h|--help] [-v|--verbose] [-q|--quiet] [-d|--download] [--version]"
echo " --help Help on $NAME_OF_AUTOGEN usage"
echo " --verbose Verbose progress output"
echo " --quiet Quiet suppressed progress output"
echo " --download Download the latest config.guess from gnulib"
echo " --version Only perform GNU Build System version checks"
echo
echo "Description: This script will validate that minimum versions of the"
echo "GNU Build System tools are installed and then run autoreconf for you."
echo "Should autoreconf fail, manual preparation steps will be run"
echo "potentially accounting for several common preparation issues. The"
echo "AUTORECONF, AUTOCONF, AUTOMAKE, LIBTOOLIZE, ACLOCAL, AUTOHEADER,"
echo "PROJECT, & CONFIGURE environment variables and corresponding _OPTIONS"
echo "variables (e.g. AUTORECONF_OPTIONS) may be used to override the"
echo "default automatic detection behavior."
echo
ident
return 0
}
##########################
# VERSION_ERROR FUNCTION #
##########################
version_error ( ) {
if [ "x$1" = "x" ] ; then
echo "INTERNAL ERROR: version_error was not provided a version"
exit 1
fi
if [ "x$2" = "x" ] ; then
echo "INTERNAL ERROR: version_error was not provided an application name"
exit 1
fi
$ECHO
$ECHO "ERROR: To prepare the ${PROJECT} build system from scratch,"
$ECHO " at least version $1 of $2 must be installed."
$ECHO
$ECHO "$NAME_OF_AUTOGEN does not need to be run on the same machine that will"
$ECHO "run configure or make. Either the GNU Autotools will need to be installed"
$ECHO "or upgraded on this system, or $NAME_OF_AUTOGEN must be run on the source"
$ECHO "code on another system and then transferred to here. -- Cheers!"
$ECHO
}
##########################
# VERSION_CHECK FUNCTION #
##########################
version_check ( ) {
if [ "x$1" = "x" ] ; then
echo "INTERNAL ERROR: version_check was not provided a minimum version"
exit 1
fi
_min="$1"
if [ "x$2" = "x" ] ; then
echo "INTERNAL ERROR: version check was not provided a comparison version"
exit 1
fi
_cur="$2"
# needed to handle versions like 1.10 and 1.4-p6
_min="`echo ${_min}. | sed 's/[^0-9]/./g' | sed 's/\.\././g'`"
_cur="`echo ${_cur}. | sed 's/[^0-9]/./g' | sed 's/\.\././g'`"
_min_major="`echo $_min | cut -d. -f1`"
_min_minor="`echo $_min | cut -d. -f2`"
_min_patch="`echo $_min | cut -d. -f3`"
_cur_major="`echo $_cur | cut -d. -f1`"
_cur_minor="`echo $_cur | cut -d. -f2`"
_cur_patch="`echo $_cur | cut -d. -f3`"
if [ "x$_min_major" = "x" ] ; then
_min_major=0
fi
if [ "x$_min_minor" = "x" ] ; then
_min_minor=0
fi
if [ "x$_min_patch" = "x" ] ; then
_min_patch=0
fi
if [ "x$_cur_minor" = "x" ] ; then
_cur_major=0
fi
if [ "x$_cur_minor" = "x" ] ; then
_cur_minor=0
fi
if [ "x$_cur_patch" = "x" ] ; then
_cur_patch=0
fi
$VERBOSE_ECHO "Checking if ${_cur_major}.${_cur_minor}.${_cur_patch} is greater than ${_min_major}.${_min_minor}.${_min_patch}"
if [ $_min_major -lt $_cur_major ] ; then
return 0
elif [ $_min_major -eq $_cur_major ] ; then
if [ $_min_minor -lt $_cur_minor ] ; then
return 0
elif [ $_min_minor -eq $_cur_minor ] ; then
if [ $_min_patch -lt $_cur_patch ] ; then
return 0
elif [ $_min_patch -eq $_cur_patch ] ; then
return 0
fi
fi
fi
return 1
}
######################################
# LOCATE_CONFIGURE_TEMPLATE FUNCTION #
######################################
locate_configure_template ( ) {
_pwd="`pwd`"
if test -f "./configure.ac" ; then
echo "./configure.ac"
elif test -f "./configure.in" ; then
echo "./configure.in"
elif test -f "$_pwd/configure.ac" ; then
echo "$_pwd/configure.ac"
elif test -f "$_pwd/configure.in" ; then
echo "$_pwd/configure.in"
elif test -f "$PATH_TO_AUTOGEN/configure.ac" ; then
echo "$PATH_TO_AUTOGEN/configure.ac"
elif test -f "$PATH_TO_AUTOGEN/configure.in" ; then
echo "$PATH_TO_AUTOGEN/configure.in"
fi
}
##################
# argument check #
##################
ARGS="$*"
PATH_TO_AUTOGEN="`dirname $0`"
NAME_OF_AUTOGEN="`basename $0`"
AUTOGEN_SH="$PATH_TO_AUTOGEN/$NAME_OF_AUTOGEN"
LIBTOOL_M4="${PATH_TO_AUTOGEN}/misc/libtool.m4"
if [ "x$HELP" = "x" ] ; then
HELP=no
fi
if [ "x$QUIET" = "x" ] ; then
QUIET=no
fi
if [ "x$VERBOSE" = "x" ] ; then
VERBOSE=no
fi
if [ "x$VERSION_ONLY" = "x" ] ; then
VERSION_ONLY=no
fi
if [ "x$DOWNLOAD" = "x" ] ; then
DOWNLOAD=no
fi
if [ "x$AUTORECONF_OPTIONS" = "x" ] ; then
AUTORECONF_OPTIONS="-i -f"
fi
if [ "x$AUTOCONF_OPTIONS" = "x" ] ; then
AUTOCONF_OPTIONS="-f"
fi
if [ "x$AUTOMAKE_OPTIONS" = "x" ] ; then
AUTOMAKE_OPTIONS="-a -c -f"
fi
ALT_AUTOMAKE_OPTIONS="-a -c"
if [ "x$LIBTOOLIZE_OPTIONS" = "x" ] ; then
LIBTOOLIZE_OPTIONS="--automake -c -f"
fi
ALT_LIBTOOLIZE_OPTIONS="--automake --copy --force"
if [ "x$ACLOCAL_OPTIONS" = "x" ] ; then
ACLOCAL_OPTIONS=""
fi
if [ "x$AUTOHEADER_OPTIONS" = "x" ] ; then
AUTOHEADER_OPTIONS=""
fi
if [ "x$CONFIG_GUESS_URL" = "x" ] ; then
CONFIG_GUESS_URL="http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=blob_plain;f=build-aux/config.guess;hb=HEAD"
fi
for arg in $ARGS ; do
case "x$arg" in
x--help) HELP=yes ;;
x-[hH]) HELP=yes ;;
x--quiet) QUIET=yes ;;
x-[qQ]) QUIET=yes ;;
x--verbose) VERBOSE=yes ;;
x-[dD]) DOWNLOAD=yes ;;
x--download) DOWNLOAD=yes ;;
x-[vV]) VERBOSE=yes ;;
x--version) VERSION_ONLY=yes ;;
*)
echo "Unknown option: $arg"
echo
usage
exit 1
;;
esac
done
#####################
# environment check #
#####################
# sanity check before recursions potentially begin
if [ ! -f "$AUTOGEN_SH" ] ; then
echo "INTERNAL ERROR: $AUTOGEN_SH does not exist"
if [ ! "x$0" = "x$AUTOGEN_SH" ] ; then
echo "INTERNAL ERROR: dirname/basename inconsistency: $0 != $AUTOGEN_SH"
fi
exit 1
fi
# force locale setting to C so things like date output as expected
LC_ALL=C
# commands that this script expects
for __cmd in echo head tail pwd ; do
echo "test" | $__cmd > /dev/null 2>&1
if [ $? != 0 ] ; then
echo "INTERNAL ERROR: '${__cmd}' command is required"
exit 2
fi
done
echo "test" | grep "test" > /dev/null 2>&1
if test ! x$? = x0 ; then
echo "INTERNAL ERROR: grep command is required"
exit 1
fi
echo "test" | sed "s/test/test/" > /dev/null 2>&1
if test ! x$? = x0 ; then
echo "INTERNAL ERROR: sed command is required"
exit 1
fi
# determine the behavior of echo
case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
*c*,-n*) ECHO_N= ECHO_C='
' ECHO_T=' ' ;;
*c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
*) ECHO_N= ECHO_C='\c' ECHO_T= ;;
esac
# determine the behavior of head
case "x`echo 'head' | head -n 1 2>&1`" in
*xhead*) HEAD_N="n " ;;
*) HEAD_N="" ;;
esac
# determine the behavior of tail
case "x`echo 'tail' | tail -n 1 2>&1`" in
*xtail*) TAIL_N="n " ;;
*) TAIL_N="" ;;
esac
VERBOSE_ECHO=:
ECHO=:
if [ "x$QUIET" = "xyes" ] ; then
if [ "x$VERBOSE" = "xyes" ] ; then
echo "Verbose output quelled by quiet option. Further output disabled."
fi
else
ECHO=echo
if [ "x$VERBOSE" = "xyes" ] ; then
echo "Verbose output enabled"
VERBOSE_ECHO=echo
fi
fi
# allow a recursive run to disable further recursions
if [ "x$RUN_RECURSIVE" = "x" ] ; then
RUN_RECURSIVE=yes
fi
################################################
# check for help arg and bypass version checks #
################################################
if [ "x`echo $ARGS | sed 's/.*[hH][eE][lL][pP].*/help/'`" = "xhelp" ] ; then
HELP=yes
fi
if [ "x$HELP" = "xyes" ] ; then
usage
$ECHO "---"
$ECHO "Help was requested. No preparation or configuration will be performed."
exit 0
fi
#######################
# set up signal traps #
#######################
untrap_abnormal ( ) {
for sig in 1 2 13 15; do
trap - $sig
done
}
# do this cleanup whenever we exit.
trap '
# start from the root
if test -d "$START_PATH" ; then
cd "$START_PATH"
fi
# restore/delete backup files
if test "x$PFC_INIT" = "x1" ; then
recursive_restore
fi
' 0
# trap SIGHUP (1), SIGINT (2), SIGPIPE (13), SIGTERM (15)
for sig in 1 2 13 15; do
trap '
$ECHO ""
$ECHO "Aborting $NAME_OF_AUTOGEN: caught signal '$sig'"
# start from the root
if test -d "$START_PATH" ; then
cd "$START_PATH"
fi
# clean up on abnormal exit
$VERBOSE_ECHO "rm -rf autom4te.cache"
rm -rf autom4te.cache
if test -f "acinclude.m4.$$.backup" ; then
$VERBOSE_ECHO "cat acinclude.m4.$$.backup > acinclude.m4"
chmod u+w acinclude.m4
cat acinclude.m4.$$.backup > acinclude.m4
$VERBOSE_ECHO "rm -f acinclude.m4.$$.backup"
rm -f acinclude.m4.$$.backup
fi
{ (exit 1); exit 1; }
' $sig
done
#############################
# look for a configure file #
#############################
if [ "x$CONFIGURE" = "x" ] ; then
CONFIGURE="`locate_configure_template`"
if [ ! "x$CONFIGURE" = "x" ] ; then
$VERBOSE_ECHO "Found a configure template: $CONFIGURE"
fi
else
$ECHO "Using CONFIGURE environment variable override: $CONFIGURE"
fi
if [ "x$CONFIGURE" = "x" ] ; then
if [ "x$VERSION_ONLY" = "xyes" ] ; then
CONFIGURE=/dev/null
else
$ECHO
$ECHO "A configure.ac or configure.in file could not be located implying"
$ECHO "that the GNU Build System is at least not used in this directory. In"
$ECHO "any case, there is nothing to do here without one of those files."
$ECHO
$ECHO "ERROR: No configure.in or configure.ac file found in `pwd`"
exit 1
fi
fi
####################
# get project name #
####################
if [ "x$PROJECT" = "x" ] ; then
PROJECT="`grep AC_INIT $CONFIGURE | grep -v '.*#.*AC_INIT' | tail -${TAIL_N}1 | sed 's/^[ ]*AC_INIT(\([^,)]*\).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
if [ "x$PROJECT" = "xAC_INIT" ] ; then
# projects might be using the older/deprecated arg-less AC_INIT .. look for AM_INIT_AUTOMAKE instead
PROJECT="`grep AM_INIT_AUTOMAKE $CONFIGURE | grep -v '.*#.*AM_INIT_AUTOMAKE' | tail -${TAIL_N}1 | sed 's/^[ ]*AM_INIT_AUTOMAKE(\([^,)]*\).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
fi
if [ "x$PROJECT" = "xAM_INIT_AUTOMAKE" ] ; then
PROJECT="project"
fi
if [ "x$PROJECT" = "x" ] ; then
PROJECT="project"
fi
else
$ECHO "Using PROJECT environment variable override: $PROJECT"
fi
$ECHO "Preparing the $PROJECT build system...please wait"
$ECHO
########################
# check for autoreconf #
########################
HAVE_AUTORECONF=no
if [ "x$AUTORECONF" = "x" ] ; then
for AUTORECONF in autoreconf ; do
$VERBOSE_ECHO "Checking autoreconf version: $AUTORECONF --version"
$AUTORECONF --version > /dev/null 2>&1
if [ $? = 0 ] ; then
HAVE_AUTORECONF=yes
break
fi
done
else
HAVE_AUTORECONF=yes
$ECHO "Using AUTORECONF environment variable override: $AUTORECONF"
fi
##########################
# autoconf version check #
##########################
_acfound=no
if [ "x$AUTOCONF" = "x" ] ; then
for AUTOCONF in autoconf ; do
$VERBOSE_ECHO "Checking autoconf version: $AUTOCONF --version"
$AUTOCONF --version > /dev/null 2>&1
if [ $? = 0 ] ; then
_acfound=yes
break
fi
done
else
_acfound=yes
$ECHO "Using AUTOCONF environment variable override: $AUTOCONF"
fi
_report_error=no
if [ ! "x$_acfound" = "xyes" ] ; then
$ECHO "ERROR: Unable to locate GNU Autoconf."
_report_error=yes
else
_version="`$AUTOCONF --version | head -${HEAD_N}1 | sed 's/[^0-9]*\([0-9\.][0-9\.]*\)/\1/'`"
if [ "x$_version" = "x" ] ; then
_version="0.0.0"
fi
$ECHO "Found GNU Autoconf version $_version"
version_check "$AUTOCONF_VERSION" "$_version"
if [ $? -ne 0 ] ; then
_report_error=yes
fi
fi
if [ "x$_report_error" = "xyes" ] ; then
version_error "$AUTOCONF_VERSION" "GNU Autoconf"
exit 1
fi
##########################
# automake version check #
##########################
_amfound=no
if [ "x$AUTOMAKE" = "x" ] ; then
for AUTOMAKE in automake ; do
$VERBOSE_ECHO "Checking automake version: $AUTOMAKE --version"
$AUTOMAKE --version > /dev/null 2>&1
if [ $? = 0 ] ; then
_amfound=yes
break
fi
done
else
_amfound=yes
$ECHO "Using AUTOMAKE environment variable override: $AUTOMAKE"
fi
_report_error=no
if [ ! "x$_amfound" = "xyes" ] ; then
$ECHO
$ECHO "ERROR: Unable to locate GNU Automake."
_report_error=yes
else
_version="`$AUTOMAKE --version | head -${HEAD_N}1 | sed 's/[^0-9]*\([0-9\.][0-9\.]*\)/\1/'`"
if [ "x$_version" = "x" ] ; then
_version="0.0.0"
fi
$ECHO "Found GNU Automake version $_version"
version_check "$AUTOMAKE_VERSION" "$_version"
if [ $? -ne 0 ] ; then
_report_error=yes
fi
fi
if [ "x$_report_error" = "xyes" ] ; then
version_error "$AUTOMAKE_VERSION" "GNU Automake"
exit 1
fi
########################
# check for libtoolize #
########################
HAVE_LIBTOOLIZE=yes
HAVE_ALT_LIBTOOLIZE=no
_ltfound=no
if [ "x$LIBTOOLIZE" = "x" ] ; then
LIBTOOLIZE=libtoolize
$VERBOSE_ECHO "Checking libtoolize version: $LIBTOOLIZE --version"
$LIBTOOLIZE --version > /dev/null 2>&1
if [ ! $? = 0 ] ; then
HAVE_LIBTOOLIZE=no
$ECHO
if [ "x$HAVE_AUTORECONF" = "xno" ] ; then
$ECHO "Warning: libtoolize does not appear to be available."
else
$ECHO "Warning: libtoolize does not appear to be available. This means that"
$ECHO "the automatic build preparation via autoreconf will probably not work."
$ECHO "Preparing the build by running each step individually, however, should"
$ECHO "work and will be done automatically for you if autoreconf fails."
fi
# look for some alternates
for tool in glibtoolize libtoolize15 libtoolize14 libtoolize13 ; do
$VERBOSE_ECHO "Checking libtoolize alternate: $tool --version"
_glibtoolize="`$tool --version > /dev/null 2>&1`"
if [ $? = 0 ] ; then
$VERBOSE_ECHO "Found $tool --version"
_glti="`which $tool`"
if [ "x$_glti" = "x" ] ; then
$VERBOSE_ECHO "Cannot find $tool with which"
continue;
fi
if test ! -f "$_glti" ; then
$VERBOSE_ECHO "Cannot use $tool, $_glti is not a file"
continue;
fi
_gltidir="`dirname $_glti`"
if [ "x$_gltidir" = "x" ] ; then
$VERBOSE_ECHO "Cannot find $tool path with dirname of $_glti"
continue;
fi
if test ! -d "$_gltidir" ; then
$VERBOSE_ECHO "Cannot use $tool, $_gltidir is not a directory"
continue;
fi
HAVE_ALT_LIBTOOLIZE=yes
LIBTOOLIZE="$tool"
$ECHO
$ECHO "Fortunately, $tool was found which means that your system may simply"
$ECHO "have a non-standard or incomplete GNU Autotools install. If you have"
$ECHO "sufficient system access, it may be possible to quell this warning by"
$ECHO "running:"
$ECHO
sudo -V > /dev/null 2>&1
if [ $? = 0 ] ; then
$ECHO " sudo ln -s $_glti $_gltidir/libtoolize"
$ECHO
else
$ECHO " ln -s $_glti $_gltidir/libtoolize"
$ECHO
$ECHO "Run that as root or with proper permissions to the $_gltidir directory"
$ECHO
fi
_ltfound=yes
break
fi
done
else
_ltfound=yes
fi
else
_ltfound=yes
$ECHO "Using LIBTOOLIZE environment variable override: $LIBTOOLIZE"
fi
############################
# libtoolize version check #
############################
_report_error=no
if [ ! "x$_ltfound" = "xyes" ] ; then
$ECHO
$ECHO "ERROR: Unable to locate GNU Libtool."
_report_error=yes
else
_version="`$LIBTOOLIZE --version | head -${HEAD_N}1 | sed 's/[^0-9]*\([0-9\.][0-9\.]*\)/\1/'`"
if [ "x$_version" = "x" ] ; then
_version="0.0.0"
fi
$ECHO "Found GNU Libtool version $_version"
version_check "$LIBTOOL_VERSION" "$_version"
if [ $? -ne 0 ] ; then
_report_error=yes
fi
fi
if [ "x$_report_error" = "xyes" ] ; then
version_error "$LIBTOOL_VERSION" "GNU Libtool"
exit 1
fi
#####################
# check for aclocal #
#####################
if [ "x$ACLOCAL" = "x" ] ; then
for ACLOCAL in aclocal ; do
$VERBOSE_ECHO "Checking aclocal version: $ACLOCAL --version"
$ACLOCAL --version > /dev/null 2>&1
if [ $? = 0 ] ; then
break
fi
done
else
$ECHO "Using ACLOCAL environment variable override: $ACLOCAL"
fi
########################
# check for autoheader #
########################
if [ "x$AUTOHEADER" = "x" ] ; then
for AUTOHEADER in autoheader ; do
$VERBOSE_ECHO "Checking autoheader version: $AUTOHEADER --version"
$AUTOHEADER --version > /dev/null 2>&1
if [ $? = 0 ] ; then
break
fi
done
else
$ECHO "Using AUTOHEADER environment variable override: $AUTOHEADER"
fi
#########################
# check if version only #
#########################
$VERBOSE_ECHO "Checking whether to only output version information"
if [ "x$VERSION_ONLY" = "xyes" ] ; then
$ECHO
ident
$ECHO "---"
$ECHO "Version requested. No preparation or configuration will be performed."
exit 0
fi
#################################
# PROTECT_FROM_CLOBBER FUNCTION #
#################################
protect_from_clobber ( ) {
PFC_INIT=1
# protect COPYING & INSTALL from overwrite by automake. the
# automake force option will (inappropriately) ignore the existing
# contents of a COPYING and/or INSTALL files (depending on the
# version) instead of just forcing *missing* files like it does
# for AUTHORS, NEWS, and README. this is broken but extremely
# prevalent behavior, so we protect against it by keeping a backup
# of the file that can later be restored.
for file in COPYING INSTALL ; do
if test -f ${file} ; then
if test -f ${file}.$$.protect_from_automake.backup ; then
$VERBOSE_ECHO "Already backed up ${file} in `pwd`"
else
$VERBOSE_ECHO "Backing up ${file} in `pwd`"
$VERBOSE_ECHO "cp -p ${file} ${file}.$$.protect_from_automake.backup"
cp -p ${file} ${file}.$$.protect_from_automake.backup
fi
fi
done
}
##############################
# RECURSIVE_PROTECT FUNCTION #
##############################
recursive_protect ( ) {
# for projects using recursive configure, run the build
# preparation steps for the subdirectories. this function assumes
# START_PATH was set to pwd before recursion begins so that
# relative paths work.
# git 'r done, protect COPYING and INSTALL from being clobbered
protect_from_clobber
if test -d autom4te.cache ; then
$VERBOSE_ECHO "Found an autom4te.cache directory, deleting it"
$VERBOSE_ECHO "rm -rf autom4te.cache"
rm -rf autom4te.cache
fi
# find configure template
_configure="`locate_configure_template`"
if [ "x$_configure" = "x" ] ; then
return
fi
# $VERBOSE_ECHO "Looking for configure template found `pwd`/$_configure"
# look for subdirs
# $VERBOSE_ECHO "Looking for subdirs in `pwd`"
_det_config_subdirs="`grep AC_CONFIG_SUBDIRS $_configure | grep -v '.*#.*AC_CONFIG_SUBDIRS' | sed 's/^[ ]*AC_CONFIG_SUBDIRS(\(.*\)).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
CHECK_DIRS=""
for dir in $_det_config_subdirs ; do
if test -d "`pwd`/$dir" ; then
CHECK_DIRS="$CHECK_DIRS \"`pwd`/$dir\""
fi
done
# process subdirs
if [ ! "x$CHECK_DIRS" = "x" ] ; then
$VERBOSE_ECHO "Recursively scanning the following directories:"
$VERBOSE_ECHO " $CHECK_DIRS"
for dir in $CHECK_DIRS ; do
$VERBOSE_ECHO "Protecting files from automake in $dir"
cd "$START_PATH"
eval "cd $dir"
# recursively git 'r done
recursive_protect
done
fi
} # end of recursive_protect
#############################
# RESTORE_CLOBBERED FUNCION #
#############################
restore_clobbered ( ) {
# The automake (and autoreconf by extension) -f/--force-missing
# option may overwrite COPYING and INSTALL even if they do exist.
# Here we restore the files if necessary.
spacer=no
for file in COPYING INSTALL ; do
if test -f ${file}.$$.protect_from_automake.backup ; then
if test -f ${file} ; then
# compare entire content, restore if needed
if test "x`cat ${file}`" != "x`cat ${file}.$$.protect_from_automake.backup`" ; then
if test "x$spacer" = "xno" ; then
$VERBOSE_ECHO
spacer=yes
fi
# restore the backup
$VERBOSE_ECHO "Restoring ${file} from backup (automake -f likely clobbered it)"
$VERBOSE_ECHO "rm -f ${file}"
rm -f ${file}
$VERBOSE_ECHO "mv ${file}.$$.protect_from_automake.backup ${file}"
mv ${file}.$$.protect_from_automake.backup ${file}
fi # check contents
elif test -f ${file}.$$.protect_from_automake.backup ; then
$VERBOSE_ECHO "mv ${file}.$$.protect_from_automake.backup ${file}"
mv ${file}.$$.protect_from_automake.backup ${file}
fi # -f ${file}
# just in case
$VERBOSE_ECHO "rm -f ${file}.$$.protect_from_automake.backup"
rm -f ${file}.$$.protect_from_automake.backup
fi # -f ${file}.$$.protect_from_automake.backup
done
CONFIGURE="`locate_configure_template`"
if [ "x$CONFIGURE" = "x" ] ; then
return
fi
_aux_dir="`grep AC_CONFIG_AUX_DIR $CONFIGURE | grep -v '.*#.*AC_CONFIG_AUX_DIR' | tail -${TAIL_N}1 | sed 's/^[ ]*AC_CONFIG_AUX_DIR(\(.*\)).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
if test ! -d "$_aux_dir" ; then
_aux_dir=.
fi
for file in config.guess config.sub ltmain.sh ; do
if test -f "${_aux_dir}/${file}" ; then
$VERBOSE_ECHO "rm -f \"${_aux_dir}/${file}.backup\""
rm -f "${_aux_dir}/${file}.backup"
fi
done
} # end of restore_clobbered
##############################
# RECURSIVE_RESTORE FUNCTION #
##############################
recursive_restore ( ) {
# restore COPYING and INSTALL from backup if they were clobbered
# for each directory recursively.
# git 'r undone
restore_clobbered
# find configure template
_configure="`locate_configure_template`"
if [ "x$_configure" = "x" ] ; then
return
fi
# look for subdirs
_det_config_subdirs="`grep AC_CONFIG_SUBDIRS $_configure | grep -v '.*#.*AC_CONFIG_SUBDIRS' | sed 's/^[ ]*AC_CONFIG_SUBDIRS(\(.*\)).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
CHECK_DIRS=""
for dir in $_det_config_subdirs ; do
if test -d "`pwd`/$dir" ; then
CHECK_DIRS="$CHECK_DIRS \"`pwd`/$dir\""
fi
done
# process subdirs
if [ ! "x$CHECK_DIRS" = "x" ] ; then
$VERBOSE_ECHO "Recursively scanning the following directories:"
$VERBOSE_ECHO " $CHECK_DIRS"
for dir in $CHECK_DIRS ; do
$VERBOSE_ECHO "Checking files for automake damage in $dir"
cd "$START_PATH"
eval "cd $dir"
# recursively git 'r undone
recursive_restore
done
fi
} # end of recursive_restore
#######################
# INITIALIZE FUNCTION #
#######################
initialize ( ) {
# this routine performs a variety of directory-specific
# initializations. some are sanity checks, some are preventive,
# and some are necessary setup detection.
#
# this function sets:
# CONFIGURE
# SEARCH_DIRS
# CONFIG_SUBDIRS
##################################
# check for a configure template #
##################################
CONFIGURE="`locate_configure_template`"
if [ "x$CONFIGURE" = "x" ] ; then
$ECHO
$ECHO "A configure.ac or configure.in file could not be located implying"
$ECHO "that the GNU Build System is at least not used in this directory. In"
$ECHO "any case, there is nothing to do here without one of those files."
$ECHO
$ECHO "ERROR: No configure.in or configure.ac file found in `pwd`"
exit 1
fi
#####################
# detect an aux dir #
#####################
_aux_dir="`grep AC_CONFIG_AUX_DIR $CONFIGURE | grep -v '.*#.*AC_CONFIG_AUX_DIR' | tail -${TAIL_N}1 | sed 's/^[ ]*AC_CONFIG_AUX_DIR(\(.*\)).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
if test ! -d "$_aux_dir" ; then
_aux_dir=.
else
$VERBOSE_ECHO "Detected auxillary directory: $_aux_dir"
fi
################################
# detect a recursive configure #
################################
CONFIG_SUBDIRS=""
_det_config_subdirs="`grep AC_CONFIG_SUBDIRS $CONFIGURE | grep -v '.*#.*AC_CONFIG_SUBDIRS' | sed 's/^[ ]*AC_CONFIG_SUBDIRS(\(.*\)).*/\1/' | sed 's/.*\[\(.*\)\].*/\1/'`"
for dir in $_det_config_subdirs ; do
if test -d "`pwd`/$dir" ; then
$VERBOSE_ECHO "Detected recursive configure directory: `pwd`/$dir"
CONFIG_SUBDIRS="$CONFIG_SUBDIRS `pwd`/$dir"
fi
done
###########################################################
# make sure certain required files exist for GNU projects #
###########################################################
_marker_found=""
_marker_found_message_intro='Detected non-GNU marker "'
_marker_found_message_mid='" in '
for marker in foreign cygnus ; do
_marker_found_message=${_marker_found_message_intro}${marker}${_marker_found_message_mid}
_marker_found="`grep 'AM_INIT_AUTOMAKE.*'${marker} $CONFIGURE`"
if [ ! "x$_marker_found" = "x" ] ; then
$VERBOSE_ECHO "${_marker_found_message}`basename \"$CONFIGURE\"`"
break
fi