#!/usr/bin/env bash
set -euo pipefail

bash_repo="${bash_repo:-https://git.savannah.gnu.org/git/bash.git}"
bash_tag="${bash_tag:-bash-5.3}"
stdlib="${stdlib:-musl}"
CC="${CC:-aarch64-linux-$stdlib-gcc}"

pushd "build" &>/dev/null || exit 1

if [ ! -d "bash-5.3" ]; then
    wget https://ftp.gnu.org/gnu/bash/bash-5.3.tar.gz
    tar xzf bash-5.3.tar.gz
fi

pushd "bash-5.3" &>/dev/null || exit 1
CFLAGS_FOR_BUILD="-std=c99" ./configure --without-bash-malloc --enable-static-link --host="aarch64-linux-$stdlib"
make clean
make
mv bash ../bin/bash
popd &>/dev/null || exit 1

popd &>/dev/null || exit 1