#!/bin/bash

set -e
# Mounted directory may already be configured. Trying to install from
# such directory would cause a failure in the container due to mismatch in
# command names/paths detected by configure on the host.
if [ -e /crosstool-ng/Makefile \
        -o -e /crosstool-ng/.build \
        -o -e /crosstool-ng/.build-all \
        -o -e /crosstool-ng/config.status ]; then
    echo "ERROR :: The host directory must not be configured/built. Run 'git clean -fxd' before" >&2
    echo "ERROR ::   installing crosstool-NG in the container." >&2
    exit 1
fi
tar cf - -C / \
        --exclude=crosstool-ng/.git \
        --exclude=crosstool-ng/testing/docker \
        crosstool-ng | \
    tar xf -
cd crosstool-ng
./bootstrap
cd ../work
~/crosstool-ng/configure --prefix=/opt/ctng
make
make install
cd ..
rm -rf crosstool-ng