gcc/contrib/download_prerequisites
Eric Gallager 612a6ffe0e download_prerequisites: Explicitly remove existing symlinks before trying to create new ones.
2016-08-03  Eric Gallager  <egall@gwmail.gwu.edu>

	* download_prerequisites: Explicitly remove existing symlinks
	before trying to create new ones.

From-SVN: r239082
2016-08-03 10:11:50 -06:00

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#! /bin/sh
# Download some prerequisites needed by gcc.
# Run this from the top level of the gcc source tree and the gcc
# build will do the right thing.
#
# (C) 2010-2016 Free Software Foundation
#
# 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/.
# If you want to disable Graphite loop optimizations while building GCC,
# DO NOT set GRAPHITE_LOOP_OPT as yes so that the isl package will not
# be downloaded.
GRAPHITE_LOOP_OPT=yes
if [ ! -e gcc/BASE-VER ] ; then
echo "You must run this script in the top level GCC source directory."
exit 1
fi
# Necessary to build GCC.
MPFR=mpfr-3.1.4
GMP=gmp-6.1.0
MPC=mpc-1.0.3
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/$MPFR.tar.bz2 || exit 1
tar xjf $MPFR.tar.bz2 || exit 1
if test -L mpfr; then rm -f mpfr; fi
ln -sf $MPFR mpfr || exit 1
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/$GMP.tar.bz2 || exit 1
tar xjf $GMP.tar.bz2 || exit 1
if test -L gmp; then rm -f gmp; fi
ln -sf $GMP gmp || exit 1
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/$MPC.tar.gz || exit 1
tar xzf $MPC.tar.gz || exit 1
if test -L mpc; then rm -f mpc; fi
ln -sf $MPC mpc || exit 1
# Necessary to build GCC with the Graphite loop optimizations.
if [ "$GRAPHITE_LOOP_OPT" = "yes" ] ; then
ISL=isl-0.16.1
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/$ISL.tar.bz2 || exit 1
tar xjf $ISL.tar.bz2 || exit 1
if test -L isl; then rm -f isl; fi
ln -sf $ISL isl || exit 1
fi