--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/gcc_build	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,325 @@
+#! /bin/sh
+
+########################################################################
+#
+# File:   gcc_build
+# Author: Mark Mitchell
+# Date:   2000-07-10
+#
+# Adapted to Subversion by Ben Elliston <bje@au.ibm.com>, 2005-07-14.
+#
+# Contents:
+#   Script to automatically download and build GCC.
+#
+# Copyright (c) 2000, 2001, 2003, 2005 Free Software Foundation.
+#
+# This file is part of GCC.
+#
+# GCC 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 3, or (at your option)
+# any later version.
+#
+# GCC 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 GCC; see the file COPYING.  If not, write to
+# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301, USA.
+#
+########################################################################
+
+########################################################################
+# Notes
+########################################################################
+
+# You can set the following variables in the environment.  They 
+# have no corresponding command-line options because they should
+# only be needed infrequently:
+#
+#   MAKE                        The path to `make'.
+
+########################################################################
+# Functions
+########################################################################
+
+# Issue the error message given by $1 and exit with a non-zero
+# exit code.
+
+error() {
+    echo "gcc_build: error: $1"
+    exit 1
+}
+
+# Issue a usage message explaining how to use this script.
+
+usage() {
+cat <<EOF
+gcc_build        [-c configure_options] 
+		 [-d destination_directory]
+		 [-m make_boot_options]
+		 [-o objdir]
+		 [-b branch_name]
+		 [-u username]
+		 [-p protocol]
+		 [-t tarfile]
+                 [-x make_check_options]
+		 [bootstrap]
+		 [build]
+		 [checkout]
+		 [configure]
+		 [export]
+		 [install]
+		 [test]
+		 [update]
+EOF
+    exit 1
+}
+
+# Change to the directory given by $1.
+
+changedir() {
+    cd $1 || \
+	error "Could not change directory to $1"
+}
+
+# Checkout a fresh copy of the GCC build tree.
+
+checkout_gcc() {
+    # If the destination already exists, don't risk destroying it.
+    test -e ${DESTINATION} && \
+	error "${DESTINATION} already exists"
+
+    # Checkout the tree
+    test -n "${SVN_USERNAME}" && SVN_USERNAME="${SVN_USERNAME}@"
+    SVNROOT="${SVN_PROTOCOL}://${SVN_USERNAME}${SVN_SERVER}${SVN_REPOSITORY}${SVN_BRANCH}"
+
+    $GCC_SVN co $SVNROOT ${DESTINATION} || \
+	error "Could not check out GCC"
+}
+
+# Update GCC.
+
+update_gcc() {
+    # If the destination does not already exist, complain.
+    test -d ${DESTINATION} || \
+	error "${DESTINATION} does not exist"
+
+    # Enter the destination directory.
+    changedir ${DESTINATION}
+
+    # Update the tree
+    ./contrib/gcc_update || \
+	error "Could not update GCC"
+}
+
+# Configure for a build of GCC.
+
+configure_gcc() {
+    # Go to the source directory.
+    changedir ${DESTINATION}
+
+    # Remove the object directory.
+    rm -rf ${OBJDIR}
+    # Create it again.
+    mkdir ${OBJDIR} || \
+	error "Could not create ${OBJDIR}"
+    # Enter it.
+    changedir ${OBJDIR}
+
+    # Configure the tree.
+    echo "Configuring: ${DESTINATION}/configure ${CONFIGURE_OPTIONS}"
+    eval ${DESTINATION}/configure ${CONFIGURE_OPTIONS} || \
+	error "Could not configure the compiler"
+}
+
+# Bootstrap GCC.  Assume configuration has already occurred.
+
+bootstrap_gcc() {
+    # Go to the source directory.
+    changedir ${DESTINATION}
+    # Go to the object directory.
+    changedir ${OBJDIR}
+
+    # Bootstrap the compiler
+    echo "Building: ${MAKE} ${MAKE_BOOTSTRAP_OPTIONS} bootstrap"
+    eval ${MAKE} ${MAKE_BOOTSTRAP_OPTIONS} bootstrap || \
+	error "Could not bootstrap the compiler"
+}
+
+# Test GCC.
+
+test_gcc() {
+    # Go to the source directory.
+    changedir ${DESTINATION}
+    # Go to the object directory.
+    changedir ${OBJDIR}
+
+    echo "Running tests...  This will take a while."
+    eval \${MAKE} -k ${MAKE_CHECK_OPTIONS} check
+    ${DESTINATION}/contrib/test_summary
+}
+
+# Export the GCC source tree.
+
+export_gcc() {
+    # Go to the source directory.
+    changedir ${DESTINATION}
+    # Go up one level.
+    changedir ..
+    # Build a tarball of the source directory.
+    tar czf ${TARFILE} \
+	--exclude=${OBJDIR} \
+	--exclude=.svn \
+	--exclude='.#*' \
+	--exclude='*~' \
+	`basename ${DESTINATION}`
+}
+
+# Install GCC.
+
+install_gcc() {
+    # Go to the source directory.
+    changedir ${DESTINATION}
+    # Go to the object directory.
+    changedir ${OBJDIR}
+
+    ${MAKE} install || error "Installation failed"
+}
+
+########################################################################
+# Initialization
+########################################################################
+
+# SVN command
+GCC_SVN=${GCC_SVN-${SVN-svn}}
+# The SVN server containing the GCC repository.
+SVN_SERVER="gcc.gnu.org"
+# The path to the repository on that server.
+SVN_REPOSITORY="/svn/gcc/"
+# The branch to check out from that server.
+# Defaults to trunk if no branch is defined with -b.
+SVN_BRANCH=""
+# The SVN protocol to use.
+SVN_PROTOCOL="svn"
+# The username to use when connecting to the server.
+# An empty string means anonymous.
+SVN_USERNAME=""
+
+# The directory where the checked out GCC will be placed.
+DESTINATION="${HOME}/dev/gcc"
+# The relative path from the top of the source tree to the 
+# object directory.
+OBJDIR="objdir"
+
+# The file where the tarred up sources will be placed.
+TARFILE="${HOME}/dev/gcc.tgz"
+
+# Options to pass to configure.
+CONFIGURE_OPTIONS=
+# The `make' program.
+MAKE=${MAKE:-make}
+# Options to pass to "make bootstrap".
+MAKE_BOOTSTRAP_OPTIONS=
+# Options to pass to "make check".
+MAKE_CHECK_OPTIONS=
+
+# Modes of operation
+BOOTSTRAP=0
+CHECKOUT=0
+CONFIGURE=0
+EXPORT=0
+INSTALL=0
+TEST=0
+UPDATE=0
+
+########################################################################
+# Main Program
+########################################################################
+
+# Issue usage if no parameters are given.
+test $# -eq 0 && usage
+
+# Parse the options.
+while getopts "c:d:m:o:p:t:b:u:x:" ARG; do
+    case $ARG in
+    c)    CONFIGURE_OPTIONS="${OPTARG}";;
+    d)    DESTINATION="${OPTARG}";;
+    m)    MAKE_BOOTSTRAP_OPTIONS="${OPTARG}";;
+    o)    OBJDIR="${OPTARG}";;
+    p)    SVN_PROTOCOL="${OPTARG}";;
+    t)    TARFILE="${OPTARG}";;
+    x)    MAKE_CHECK_OPTIONS="${OPTARG}";;
+    b)    SVN_BRANCH="${OPTARG}";;
+    u)    SVN_USERNAME="${OPTARG}";;
+    \?)   usage;;
+    esac
+done
+shift `expr ${OPTIND} - 1`
+
+# Handle the major modes.
+while [ $# -ne 0 ]; do
+    case $1 in
+    bootstrap) BOOTSTRAP=1;;
+    build)    CONFIGURE=1; BOOTSTRAP=1;;
+    checkout) CHECKOUT=1;;
+    configure) CONFIGURE=1;;
+    export)   EXPORT=1;;
+    install)  INSTALL=1;;
+    test)     TEST=1;;
+    update)   UPDATE=1;;
+    *)        usage;;
+    esac
+    shift
+done
+
+# Check the arguments for sanity.
+if [ ${CHECKOUT} -ne 0 ] && [ ${UPDATE} -ne 0 ]; then
+    error "Cannot checkout and update simultaneously"
+fi
+
+if [ ${CHECKOUT} -eq 0 ] && test -n "${SVN_BRANCH}"; then
+    error "Branch argument only makes sense when doing a checkout"
+fi
+
+# Validate the branch name.
+if test -n "${SVN_BRANCH}"; then
+    SVN_BRANCH="branches/${SVN_BRANCH}";
+else
+    SVN_BRANCH="trunk";
+fi
+
+# Checkout the tree.
+if [ ${CHECKOUT} -ne 0 ]; then
+    checkout_gcc
+elif [ ${UPDATE} -ne 0 ]; then
+    update_gcc
+fi
+
+# Configure to build the tree.
+if [ ${CONFIGURE} -ne 0 ]; then
+    configure_gcc
+fi
+
+# Bootstrap the compiler.
+if [ ${BOOTSTRAP} -ne 0 ]; then
+    bootstrap_gcc
+fi
+
+# Test the compiler
+if [ ${TEST} -ne 0 ]; then
+    test_gcc
+fi
+
+# Install the compiler.
+if [ ${INSTALL} -ne 0 ]; then
+    install_gcc
+fi
+
+# Export the sources
+if [ ${EXPORT} -ne 0 ]; then
+    export_gcc
+fi