build-mingw-deps

#!/bin/bash

die()
{
    echo "$@" >&2
    exit 1
}

trap_func()
{
    trap - ERR  # don't run the trap again
    die "Error in line $1 (return code $2)"
}

check_prerequisites()
{
    for program in make wget tar autoconf automake x86_64-w64-mingw32-{gcc,ar}
    do
        command -v "$program" >/dev/null || die "Error: Must have \"$program\" installed"
    done
}

main()
{
    set -eE
    trap 'trap_func $LINENO $?' ERR

    check_prerequisites

    local tmp_dir
    if [ "$1" ]
    then
        [ -d "$1" ] || die "Error: Directory \"$1\" does not exit"
        tmp_dir=$1
    else
        tmp_dir=$(mktemp -d "/tmp/build-mingw-deps.XXXXXXXXXX")
    fi

    local urls=(
        https://github.com/radarsat1/liblo/archive/refs/tags/0.34.tar.gz                  # GPL-2.1-only
        )
    local archives=(liblo-0.34)

    # shellcheck disable=SC2043  # loop intended to run once (can be extended for future deps)
    for i in 0
    do
        local tarball=$tmp_dir/${archives[$i]}.tar.gz
        [ -f "$tarball" ] || wget "${urls[$i]}" -O "$tarball"
        tar -C "$tmp_dir/" -xf "$tarball"
        # rm "$tarball"
    done

    [ -d "$tmp_dir/prefix" ] || mkdir "$tmp_dir/prefix"

    (cd "$tmp_dir/liblo-0.34"
        ./autogen.sh --host=x86_64-w64-mingw32 \
            --prefix="$tmp_dir/prefix" \
            --disable-shared \
            --enable-static \
            --disable-doc
        make
        make install)
}

main "$@"