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#!/bin/sh
# shellcheck source=./default.conf
. "./default.conf"
# Prepare the cross-compiler for the destination platform, in our
# case i486.
if test ! "$(getent group cross)"; then
groupadd cross
fi
if test ! "$(getent passwd cross)"; then
useradd -m -g cross cross
fi
# add 'cross' user as sudoer without password
if test ! -f /etc/sudoers.d/cross; then
echo "cross ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers.d/cross
fi
# we need the github keys
if test ! -d "$CROSS_HOME/.ssh"; then
mkdir "$CROSS_HOME/.ssh"
chown cross:cross "$CROSS_HOME/.ssh"
fi
if test ! -f "$CROSS_HOME/.ssh/id_rsa.pub"; then
cp "$HOME/.ssh/id_rsa.pub" "$CROSS_HOME/.ssh/."
cp "$HOME/.ssh/id_rsa" "$CROSS_HOME/.ssh/."
chown cross:cross $CROSS_HOME/.ssh/id_rsa*
fi
if test ! -x /usr/local/bin/ct-ng; then
echo "Installing crosstool-ng:"
su - cross <<EOF
mkdir cross
cd cross
git clone https://github.com/crosstool-ng/crosstool-ng.git
cd crosstool-ng
./bootstrap
./configure --prefix=/usr/local
make
sudo make install
cd ..
EOF
echo "Done crosstool-ng."
fi
if test ! -x $CROSS_HOME/x-tools/${TARGET_ARCH}/bin/${TARGET_ARCH}-gcc; then
echo "Building cross compiler for ${TARGET_ARCH}=gcc:"
rm -rf $XTOOLS_HOME
cp ct-ng.config $CROSS_HOME/.config
CPUS=$(nproc)
sed -i "s/^CT_PARALLEL_JOBS=.*/CT_PARALLEL_JOBS=$CPUS/" $CROSS_HOME/.config
chown cross:cross $CROSS_HOME/.config
su - cross <<EOF
ct-ng build
EOF
echo "Done creating the cross compiler."
fi
CROSS_MSG="$($CROSS_HOME/x-tools/${TARGET_ARCH}/bin/${TARGET_ARCH}-gcc --version | head -n 1)"
echo "Cross-compiler ready: $CROSS_MSG"
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