#! /bin/sh # # Update a local CVS 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. # # By default all command-line options are passed to `cvs update` in # addition to $UPDATE_OPTIONS (defined below). If the first parameter # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself # are omitted. # # If the first parameter reads --patch, the second parameter is considered # a patch file. # # If the first parameter is --touch, no cvs operation will be performed, # only generated files that appear to be out of date in the local tree # will be touched. # # If the first parameter is --list, a list of the generated files and # their dependencies will be printed; --help prints this message. # # Examples: # # contrib/gcc_update -r gcc_latest_snapshot # contrib/gcc_update -A # contrib/gcc_update --nostdflags -P -r gcc-2_95-branch gcc/testsuite # contrib/gcc_update --patch some-patch # contrib/gcc_update --touch # contrib/gcc_update --list # # # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation # Originally by Gerald Pfeifer , August 1998. # # This script is Free Software, and it can be copied, distributed and # modified as defined in the GNU General Public License. A copy of # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html # CVS command GCC_CVS=${GCC_CVS-${CVS-cvs}} # Default options used when updating via CVS. UPDATE_OPTIONS=-Pd # Use -P to prune empty directories. # Use -d to create any directories that exist in the repository but not # locally. # Use -A to reset any sticky tags, dates, or `-k' options. ######## Anything below shouldn't be changed by regular users. # Arrange for the value of $0 to be available for functions self=$0 # This function prints a list of all generated files, along with their # dependencies. Note that only one target is supported per line: the # colon is stripped from the output. files_and_dependencies () { sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF # All automake dependencies within texinfo # In fact, not all, since we do not care about sub-directories that # we do not build. In particular, *.po and *.gmo are not touched. texinfo/aclocal.m4: texinfo/configure.in texinfo/acinclude.m4 texinfo/Makefile.in: texinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4 texinfo/configure: texinfo/configure.in texinfo/aclocal.m4 texinfo/stamp-h.in: texinfo/configure.in texinfo/aclocal.m4 texinfo/acconfig.h texinfo/lib/Makefile.in: texinfo/lib/Makefile.am texinfo/configure.in texinfo/aclocal.m4 texinfo/makeinfo/Makefile.in: texinfo/makeinfo/Makefile.am texinfo/configure.in texinfo/aclocal.m4 texinfo/util/Makefile.in: texinfo/util/Makefile.am texinfo/configure.in texinfo/aclocal.m4 # intl library intl/plural.c: intl/plural.y intl/configure: intl/configure.in intl/aclocal.m4 intl/config.h.in: intl/configure.in 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 # And then, language-specific files gcc/f/intdoc.texi: gcc/f/intdoc.in gcc/f/intdoc.c gcc/f/intrin.h gcc/f/intrin.def gcc/cp/cfns.h: gcc/cp/cfns.gperf gcc/java/keyword.h: gcc/java/keyword.gperf gcc/ada/stamp-xgnatug: gcc/ada/gnat_ug.texi gcc/ada/xgnatug.adb gcc/ada/ug_words gcc/ada/gnat_ug_unx.texi: gcc/ada/stamp-xgnatug gcc/ada/gnat_ug_vms.texi: gcc/ada/stamp-xgnatug gcc/ada/gnat_ug_vxw.texi: gcc/ada/stamp-xgnatug gcc/ada/gnat_ug_wnt.texi: gcc/ada/stamp-xgnatug # testsuite # Without this, _Pragma3.c can have a false negative. gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h # And libraries, at last libf2c/configure: libf2c/configure.in libf2c/libF77/configure: libf2c/libF77/configure.in libf2c/libI77/configure: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in: libf2c/libI77/configure.in libf2c/libI77/config.h.in: libf2c/libI77/configure.in libf2c/libI77/stamp-h.in libf2c/libU77/configure: libf2c/libU77/configure.in libf2c/libU77/stamp-h.in: libf2c/libU77/configure.in libf2c/libU77/acconfig.h libobjc/configure: libobjc/configure.in # fastjar fastjar/aclocal.m4: fastjar/configure.in fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.in fastjar/aclocal.m4 fastjar/configure: fastjar/configure.in fastjar/aclocal.m4 fastjar/stamp-h.in: fastjar/configure.in fastjar/aclocal.m4 boehm-gc/aclocal.m4: boehm-gc/configure.in boehm-gc/acinclude.m4 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.in boehm-gc/aclocal.m4 boehm-gc/configure: boehm-gc/configure.in boehm-gc/aclocal.m4 libjava/aclocal.m4: libjava/configure.in libjava/acinclude.m4 libjava/Makefile.in: libjava/Makefile.am libjava/configure.in libjava/aclocal.m4 libjava/configure: libjava/configure.in 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 # Top level Makefile.in: Makefile.tpl Makefile.def configure: configure.in 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.$$ echo ' echo Touching $@...; \' >> Makefile.$$ echo ' echo Touching $@... 1>&2; \' >> Makefile.$$ echo ' touch $@' >> Makefile.$$ files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$ while ${MAKE-make} -s -f Makefile.$$ all | grep . > /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 () { echo "Adjusting file timestamps" exec ${CONFIG_SHELL-/bin/sh} $self --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 ;; *) cat $1 | patch -p1 ;; 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 "$1" in # First of all, check whether we are going to process a patch. --patch) if test "$#" != 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 $? ;; esac # Check whether this indeed looks like a local CVS tree. if [ ! -d CVS ]; then echo "This does not seem to be a GCC CVS tree!" exit fi # Check command-line options if [ x"${1}"x = x"--nostdflags"x ]; then shift else set -- $UPDATE_OPTIONS ${1+"$@"} fi echo "Updating CVS tree" $GCC_CVS -q update ${1+"$@"} if [ $? -ne 0 ]; then (touch_files_reexec) echo "CVS update of full tree failed." >&2 exit 1 fi { date TZ=UTC date } > LAST_UPDATED touch_files_reexec