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#! /bin/sh
# Copyright (C) 2011-2018 Free Software Foundation, Inc.
#
# This file is part of GDB.
#
# 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
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# Usage: update-gnulib.sh <path-to-gnulib-repository>
# Update our import of gnulib in the GDB source tree.
#
# This script assumes that it is being called from the gdb/gnulib
# subdirectory, and will verify this before proceeding.
#
# This script will also make a number of other verifications:
# . The gnulib version (it should match $GNULIB_COMMIT_SHA1).
# . The correct versions of the auto-tools that are used to
# regenerate the various scripts and Makefiles are on the PATH.
# The list of gnulib modules we are importing in GDB.
IMPORTED_GNULIB_MODULES="\
alloca \
canonicalize-lgpl \
dirent \
dirfd \
errno \
fnmatch-gnu \
frexpl \
getcwd \
glob \
inttypes \
lstat \
limits-h \
memchr \
memmem \
mkstemp \
pathmax \
rawmemchr \
readlink \
rename \
setenv \
signal-h \
strchrnul \
strstr \
strtok_r \
sys_stat \
unistd \
unsetenv \
update-copyright \
wchar \
wctype-h \
"
# The gnulib commit ID to use for the update.
GNULIB_COMMIT_SHA1="38237baf99386101934cd93278023aa4ae523ec0"
# The expected version number for the various auto tools we will
# use after the import.
AUTOCONF_VERSION="2.64"
AUTOMAKE_VERSION="1.11.1"
ACLOCAL_VERSION="$AUTOMAKE_VERSION"
if [ $# -ne 1 ]; then
echo "Error: Path to gnulib repository missing. Aborting."
echo "Usage: update-gnulib.sh <path-to-gnulib-repository>"
exit 1
fi
gnulib_prefix=$1
gnulib_tool="$gnulib_prefix/gnulib-tool"
# Verify that the gnulib directory does exist...
if [ ! -f "$gnulib_tool" ]; then
echo "Error: Invalid gnulib directory. Cannot find gnulib tool"
echo " ($gnulib_tool)."
echo "Aborting."
exit 1
fi
# Verify that we have the right version of gnulib...
gnulib_head_sha1=`cd $gnulib_prefix && git rev-parse HEAD`
if [ "$gnulib_head_sha1" != "$GNULIB_COMMIT_SHA1" ]; then
echo "Error: Wrong version of gnulib: $gnulib_head_sha1"
echo " (we expected it to be $GNULIB_COMMIT_SHA1)"
echo "Aborting."
exit 1
fi
# Verify that we are in the gdb/ subdirectory.
if [ ! -f ../main.c -o ! -d import ]; then
echo "Error: This script should be called from the gdb/gnulib subdirectory."
echo "Aborting."
exit 1
fi
# Verify that we have the correct version of autoconf.
ver=`autoconf --version 2>&1 | head -1 | sed 's/.*) //'`
if [ "$ver" != "$AUTOCONF_VERSION" ]; then
echo "Error: Wrong autoconf version: $ver. Aborting."
exit 1
fi
# Verify that we have the correct version of automake.
ver=`automake --version 2>&1 | head -1 | sed 's/.*) //'`
if [ "$ver" != "$AUTOMAKE_VERSION" ]; then
echo "Error: Wrong automake version ($ver), we need $AUTOMAKE_VERSION."
echo "Aborting."
exit 1
fi
# Verify that we have the correct version of aclocal.
#
# The grep below is needed because Perl >= 5.16 dumps a "called too
# early to check prototype" warning when running aclocal 1.11.1. This
# causes trouble below, because the warning is the first line output
# by aclocal, resulting in:
#
# $ sh ./update-gnulib.sh ~/src/gnulib/src/
# Error: Wrong aclocal version: called too early to check prototype at /opt/automake-1.11.1/bin/aclocal line 617.. Aborting.
#
# Some distros carry an automake patch for that:
# https://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=aclocal-function-prototypes.debdiff;att=1;bug=752784
#
# But since we prefer pristine FSF versions of autotools, work around
# the issue here. This can be removed later when we bump the required
# automake version.
#
ver=`aclocal --version 2>&1 | grep -v "called too early to check prototype" | head -1 | sed 's/.*) //'`
if [ "$ver" != "$ACLOCAL_VERSION" ]; then
echo "Error: Wrong aclocal version: $ver. Aborting."
exit 1
fi
# Update our gnulib import.
$gnulib_prefix/gnulib-tool --import --dir=. --lib=libgnu \
--source-base=import --m4-base=import/m4 --doc-base=doc \
--tests-base=tests --aux-dir=import/extra \
--no-conditional-dependencies --no-libtool --macro-prefix=gl \
--no-vc-files \
$IMPORTED_GNULIB_MODULES
if [ $? -ne 0 ]; then
echo "Error: gnulib import failed. Aborting."
exit 1
fi
# Regenerate all necessary files...
aclocal -Iimport/m4 &&
autoconf &&
autoheader &&
automake
if [ $? -ne 0 ]; then
echo "Error: Failed to regenerate Makefiles and configure scripts."
exit 1
fi
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