--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/gcc_update	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,277 @@
+#! /bin/sh
+#
+# Update a local Subversion tree from the GCC repository, with an emphasis
+# on treating generated files correctly, so that autoconf, gperf et
+# al are not required for the ``end'' user.
+#
+# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
+# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
+#
+# This script is Free Software, and it can be copied, distributed and
+# modified as defined in the GNU General Public License.  A copy of
+# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
+#
+#
+# By default all command-line options are passed to `svn update` in
+# addition to $UPDATE_OPTIONS (defined below). If the first parameter
+# reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
+# are omitted.
+#
+# If the first parameter reads --patch, the second parameter is considered
+# a patch file.
+#
+# If the first parameter is --touch, no svn operation will be performed,
+# only generated files that appear to be out of date in the local tree
+# will be touched.
+#
+# If the first parameter is --list, a list of the generated files and
+# their dependencies will be printed; --help prints this message.
+#
+# If the first parameter is --silent, this script prints nothing other
+# than error messages; the second parameter is then interpreted as above.
+#
+# Examples:
+#
+# contrib/gcc_update -r 8712
+# contrib/gcc_update --patch some-patch
+# contrib/gcc_update --touch
+# contrib/gcc_update --list
+
+
+# SVN command
+GCC_SVN=${GCC_SVN-${SVN-svn}}
+# Default options used when updating via SVN (none).
+UPDATE_OPTIONS=""
+
+######## Anything below shouldn't be changed by regular users.
+
+# Arrange for the value of $0 to be available for functions
+self=$0
+
+# This function prints its arguments to standard output unless
+# "silent" is set.
+unset silent
+chat () {
+    if [ -z "$silent" ]; then
+        echo "$@"
+    fi
+}
+
+# This function prints a list of all generated files, along with their
+# dependencies.  Note that only one target is supported per line: the
+# colon is stripped from the output.
+files_and_dependencies () {
+    sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
+# fixincludes
+fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
+fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
+# intl library
+intl/plural.c: intl/plural.y
+intl/configure: intl/configure.ac intl/aclocal.m4
+intl/config.h.in: intl/configure.ac intl/aclocal.m4
+# Now, proceed to gcc automatically generated files
+gcc/configure: gcc/configure.ac
+gcc/cstamp-h.in: gcc/configure.ac
+gcc/config.in: gcc/cstamp-h.in
+gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
+gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
+# And then, language-specific files
+gcc/cp/cfns.h: gcc/cp/cfns.gperf
+gcc/java/keyword.h: gcc/java/keyword.gperf
+# testsuite
+# Without this, _Pragma3.c can have a false negative.
+gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
+# Similarly, without this, you will see:
+# direct2s.c:35: warning: current file is older than direct2.c
+gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
+# And libraries, at last
+libbanshee/configure: libbanshee/configure.ac
+libmudflap/configure: libmudflap/configure.ac
+libobjc/configure: libobjc/configure.ac
+zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
+zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
+zlib/configure: zlib/configure.ac zlib/aclocal.m4
+fastjar/aclocal.m4: fastjar/configure.ac
+fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
+fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
+boehm-gc/aclocal.m4: boehm-gc/configure.ac
+boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
+boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
+libada/configure: libada/configure.ac
+libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
+libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
+libffi/configure: libffi/configure.ac libffi/aclocal.m4
+libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
+libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
+libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
+libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
+libjava/aclocal.m4: libjava/configure.ac
+libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
+libjava/configure: libjava/configure.ac libjava/aclocal.m4
+libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
+libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
+libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
+libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
+libcpp/aclocal.m4: libcpp/configure.ac
+libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
+libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
+libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
+libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
+libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
+libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
+libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
+# Top level
+Makefile.in: Makefile.tpl Makefile.def
+configure: configure.ac config/acx.m4
+EOF
+}
+
+
+# This function touches generated files such that the ``end'' user does
+# not have to rebuild them.
+touch_files () {
+    rm -f Makefile.$$
+    echo 'all: \' > Makefile.$$
+    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
+    echo '; @true' >> Makefile.$$
+    files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
+    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
+    echo ':' >> Makefile.$$
+    echo '	@for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
+    echo '	echo Touching $@...; \' >> Makefile.$$
+    chat '	echo Touching $@... 1>&2; \' >> Makefile.$$
+    echo '	touch $@' >> Makefile.$$
+    files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
+
+    # We would have to explicitly shut off the "Entering... Leaving..."
+    # messages through "--no-print-directory" to handle the case when
+    # we were called from a recursive invocation (i.e. "$(MAKE)" in a
+    # Makefile, not just make).  Passing only "-s" doesn't help then,
+    # because make has helpfully added "-w" to MAKEFLAGS automatically.
+    # Unfortunately we do not require GNU make other than for building
+    # and testing, so let's just grep known text explicitly echoed by
+    # the rule.
+    while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
+      sleep 1
+    done 2>&1
+    rm -f Makefile.$$
+}
+
+
+# Whenever we update the tree or install a patch, we may be modifying
+# this script.  By re-execing it, we ensure that the appropriate
+# dependencies and rules will be used.
+touch_files_reexec () {
+    chat "Adjusting file timestamps"
+    exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
+}
+
+# This functions applies a patch to an existing tree.
+apply_patch () {
+    if [ -f "$1" ]; then
+	echo "Applying patch file $1"
+	case $1 in
+	*gz)
+	    gzip -d -c "$1" | patch -p1 ;;
+	*bz2)
+	    bzip2 -d -c "$1" | patch -p1 ;;
+	*)
+	    patch -p1 < "$1";;
+	esac
+    fi
+    touch_files_reexec
+}
+
+# Check whether this indeed looks like a local tree.
+if [ ! -f gcc/version.c ]; then
+    echo "This does not seem to be a GCC tree!"
+    exit
+fi
+
+case "$1" in
+--silent)
+    silent=t
+    shift
+    ;;
+esac
+
+case "$1" in
+# First of all, check whether we are going to process a patch.
+--patch)
+    if test "$#" != 2; then
+        echo "$1" expects only one argument >&2
+	exit 1
+    fi
+    apply_patch "${2}"
+    exit $?
+    ;;
+
+--touch)
+    if test "$#" != 1; then
+        echo "$1" does not expect any argument >&2
+	exit 1
+    fi
+    touch_files
+    exit $?
+    ;;
+
+--list)
+    if test "$#" != 1; then
+        echo "$1" does not expect any argument >&2
+	exit 1
+    fi
+    files_and_dependencies | sed 's/ /: /'
+    exit $?
+    ;;
+
+--help)
+    sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
+\
+
+p
+}' \
+	-e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
+    exit $?
+    ;;
+
+esac
+
+# Check whether this indeed looks like a local SVN tree.
+if [ ! -d .svn ]; then
+    echo "This does not seem to be a GCC SVN tree!"
+    exit
+fi
+
+# Check command-line options
+if [ x"${1}"x = x"--nostdflags"x ]; then
+    shift
+else
+    set -- $UPDATE_OPTIONS ${1+"$@"}
+fi
+
+chat "Updating SVN tree"
+
+$GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
+if [ $? -ne 0 ]; then
+    (touch_files_reexec)
+    echo "SVN update of full tree failed." >&2
+    exit 1
+fi
+
+rm -f LAST_UPDATED gcc/REVISION
+
+revision=`svn info | awk '/Revision:/ { print $2 }'`
+branch=`svn info | sed -ne "/URL:/ {
+s,.*/trunk,trunk,
+s,.*/branches/,,
+s,.*/tags/,,
+p
+}"`
+{
+  date
+  echo "`TZ=UTC date` (revision $revision)"
+} > LAST_UPDATED
+
+echo "[$branch revision $revision]" > gcc/REVISION
+
+touch_files_reexec