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#!/bin/sh
#
# icecream-create-env - helper script to create icecc environments(mostly for cross-compiling)
#
# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
#
# Please note, this script has been designed to work with Gentoo's crossdev, it may or may
# not work with cross-toolchains that were build differently.
#
#
# Usage: "./icecream-create-env" creates a native environment(similar to icecc --build-native)
# "./icecream-create-env prefix" creates a cross-compile environment using the cross-toolchain created by crossdev
# Example:
# "emerge crossdev && crossdev -t sparc-unknown-linux-gnu && icecream-create-env sparc-unknown-linux"
if [ `id -u` -ne 0 ]
then
echo "Only the superuser can execute this script."
exit 1
fi
# param 1 = CHOST
prefix="${1}"
if [ -z "${prefix}" ]
then
prefix="`gcc -dumpmachine`"
fi
gccbin=`which ${prefix}-gcc 2>/dev/null`
if [ ! -e "${gccbin}" ]
then
echo "Can't find ${prefix}-gcc!"
exit 1
fi
gxxbin=`which ${prefix}-g++ 2>/dev/null`
if [ ! -e "${gxxbin}" ]
then
echo "Can't find ${prefix}-g++!"
exit 2
fi
version="`${prefix}-gcc -dumpversion`"
tmpdir=`mktemp -d`
tmpfile=`mktemp`
target=`gcc -dumpmachine`
if [ "x${target}" = "x${prefix}" ]
then
/usr/libexec/icecc/icecc-create-env \
/usr/${prefix}/gcc-bin/${version}/gcc \
/usr/${prefix}/gcc-bin/${version}/g++ \
| tee ${tmpfile}
else
/usr/libexec/icecc/icecc-create-env \
/usr/${target}/${prefix}/gcc-bin/${version}/${prefix}-gcc \
/usr/${target}/${prefix}/gcc-bin/${version}/${prefix}-g++ \
| tee ${tmpfile}
fi
# figure out the name of the archive
icecc_envname=`grep "creating" ${tmpfile} | awk '{print $2}'`
echo "Testing icecc environment..."
tar -x -z -f ${icecc_envname} -C ${tmpdir}
touch ${tmpdir}/empty.c
chroot ${tmpdir}/ /usr/bin/gcc -c /empty.c
tested=${?}
rm ${tmpdir}/empty.c
if [ "${tested}" -ne 0 ]
then
echo ""
echo "Creating icecc environment failed. Please see error message(s) above! The temporary directory is: ${tmpdir}/"
else
echo ""
echo "Icecc environment has been created. It has been saved as ${icecc_envname}!"
fi
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