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#!/bin/sh
# Cross compile a GNU build environment,
# <http://www.gnu.org/software/hurd/toolchain/cross-gnu.html>.
# Copyright (C) 2006, 2007, 2008, 2010, 2011, 2012 Free Software Foundation,
# Inc.
# Written by Thomas Schwinge <thomas@schwinge.name>.
# This file is part of the GNU Hurd.
#
# 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/>.
# Functions from Paul Jarc's prjlibs available at
# <http://code.dogmap.org/prjlibs/>.
# sh/set.sh
case $? in 0) :;; *) (exit "$?");; esac &&
prj_set() {
eval "$1=\${2?}"
}
# sh/set_default.sh
case $? in 0) :;; *) (exit "$?");; esac &&
prj_set_default() {
: "${2?}" &&
eval "
if test \"\${$1+x}\" = x; then :; else
$1=\$2
fi"
}
# sh/unset.sh
case $? in 0) :;; *) (exit "$?");; esac &&
prj_unset() {
while test "$#" != 0; do
{ eval "$1=" &&
unset "$1" &&
shift
} || return "$?"
done
}
# sh/x2.sh
case $? in 0) :;; *) (exit "$?");; esac &&
prj_x2() {
: "${2?}" &&
"$@" &&
export "$2"
}
case $? in 0) :;; *) (exit "$?");; esac &&
# Create a clean environment.
prj_x2 prj_set LC_ALL C &&
prj_unset ASFLAGS CFLAGS CPPFLAGS CXXFLAGS LDFLAGS &&
prj_unset MAKEFLAGS &&
# Environment variables.
# `$ROOT' defaults to `~/tmp/gnu'.
prj_x2 prj_set_default ROOT ~/tmp/gnu &&
# `$ROOT' must specify an absolute path.
case $ROOT in
/*)
:;;
*)
ROOT=`cd "$ROOT" && pwd`;;
esac &&
prj_x2 prj_set_default SYS_ROOT "$ROOT"/sys_root &&
# Note that to avoid confusing GCC, the following has to match how GCC is
# configured re NATIVE_SYSTEM_HEADER_DIR (gcc/config/t-gnu) or
# native_system_header_dir (gcc/config.gcc) or the
# --with-native-system-header-dir command-line option.
#prj_unset CROSS_GNU_USR &&
prj_x2 prj_set_default CROSS_GNU_USR /usr &&
prj_x2 prj_set_default TARGET i686-pc-gnu &&
prj_x2 prj_set_default BINUTILS_SRC "$ROOT"/src/binutils &&
prj_x2 prj_set_default GCC_SRC "$ROOT"/src/gcc &&
prj_x2 prj_set_default GDB_SRC "$ROOT"/src/gdb &&
prj_x2 prj_set_default GLIBC_SRC "$ROOT"/src/glibc &&
prj_x2 prj_set_default GNUMACH_SRC "$ROOT"/src/gnumach &&
prj_x2 prj_set_default HURD_SRC "$ROOT"/src/hurd &&
prj_x2 prj_set_default MIG_SRC "$ROOT"/src/mig &&
prj_x2 prj_set_default LIBPTHREAD_SRC "$ROOT"/src/libpthread &&
# TODO. See cross-gnu.
prj_x2 prj_set_default CROSS_GNU_REINSTALL_GLIBC y &&
prj_x2 prj_set PATH "$ROOT"/bin:"$PATH" &&
if gmake --version 2> /dev/null | grep -q GNU
then prj_x2 prj_set MAKE gmake
else prj_x2 prj_set MAKE make
fi
# See GNU Mach's `Makefile.am' for why. This is for the packages that don't
# handle it themselves.
prj_x2 prj_set INSTALL "$GNUMACH_SRC"/build-aux/install-sh\ -C
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