Build FreeBSD Wii (does not work)

build_freebsd_wii.sh

#!/bin/sh

# https://wiki.freebsd.org/Wii
# https://wiki.freebsd.org/BuildingOnNonFreeBSD
# https://github.com/freebsd/freebsd-src/blob/main/.github/workflows/cross-bootstrap-tools.yml
# https://github.com/freebsd/freebsd-ci/tree/master/jobs/FreeBSD-main-powerpc-build
# https://github.com/freebsd/freebsd-ci/blob/master/scripts/build/build-world-kernel-head.sh

# Support for the wii was removed in 29d0137a8d2b31771eee2172f4f73e7d4fe48373 .
# Reverting it causes merge conflicts.
# It never had support for external peripherals.

type -p clang || (echo clang not found ; false) || exit 1
type -p lld   || (echo lld   not found ; false) || exit 1

export NPROC=2
export BUILD_ARGS=""
export BUILD_ARGS="$BUILD_ARGS TARGET=powerpc"
export BUILD_ARGS="$BUILD_ARGS TARGET_ARCH=powerpc"
export BUILD_ARGS="$BUILD_ARGS --cross-bindir=/usr/bin"
export EXTRA_MAKE_ARGS=""
export MAKEOBJDIRPREFIX="$(pwd)/build"

mkdir build
test -d freebsd-src || git clone git@github.com:freebsd/freebsd-src.git
cd freebsd-src
#git pull

set -xe

./tools/build/make.py --debug $BUILD_ARGS -n
./tools/build/make.py --debug $BUILD_ARGS kernel-toolchain -s -j$NPROC
./tools/build/make.py --debug $BUILD_ARGS KERNCONF=WII NO_MODULES=yes buildkernel -s -j$NPROC $EXTRA_MAKE_ARGS

mkdir -p sd_card/apps/freebsd
cp -v sys/WII/kernel sd_card/apps/freebsd/boot.elf

curl 'https://wiki.freebsd.org/Wii?action=AttachFile&do=get&target=icon.png' > sd_card/apps/freebsd/icon.png

cat <<'EOF' > sd_card/apps/freebsd/meta.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<app version="1">
  <name>FreeBSD 10</name>
  <coder>The FreeBSD Project</coder>
  <version>10</version>
  <release_date>today</release_date>
  <short_description>FreeBSD</short_description>
  <long_description>FreeBSD is an advanced operating system for modern server, desktop, and embedded computer platforms.</long_description>
</app>
EOF