Compiled on PI4B4G with 5.10.77-piCore-v8

Compile Flags:
(non)

Dependencies:
alsa-plugins-dev
alsa-utils
boost-dev
cmake
compiletc
curl-dev
git
gloox-dev
libxml2-dev
llvm-dev
glu-dev
icu70-dev
libenet-dev
libfmt-dev
libogg-dev
libpng-dev
libsodium-dev
libvorbis-dev
miniupnpc-dev
sdl2-dev
openal-dev
pixz
python2.7
rust
squashfs-tools
tar
wxwidgets-dev

Commands:

# fix lto for gcc
P=/usr/local/libexec/gcc/aarch64-unknown-linux-gnu/10.2.0/liblto_plugin.so.0.0.0
sudo mkdir -p /usr/local/lib/bfd-plugins
sudo ln -sfv $P /usr/local/lib/bfd-plugins/liblto_plugin.so

# making sure that sound works
aplay /usr/local/share/sounds/alsa/Front_Center.wav

# downloaded from official site
tar -I pixz -xf 0ad-0.0.25b-alpha-unix-build.tar.xz
tar -I pixz -xf 0ad-0.0.25b-alpha-unix-data.tar.xz

# /mnt/mmcblk0p2/compile/0ad/0ad-0.0.25b-alpha/build/workspaces
cd 0ad-0.0.25b-alpha/build/workspaces

# "configure" options
# https://github.com/0ad/0ad/blob/master/build/premake/premake5.lua
# --without-pch Disable generation and usage of precompiled headers

nohup time ./update-workspaces.sh -j4 \
--bindir=/usr/local/bin \
--libdir='/usr/local/games/0ad' \
--datadir='/usr/local/games/0ad' \
--without-pch \
--without-tests 2>&1 | tee u.log &

# there should be a new directory named "gcc"
cd gcc

# now build
config=release verbose=1 nohup time make -j4 2>&1 | tee ../m.log &

# copy the files manually
# there's no make install

===============================================================================================

The old incorrect commands for references:

# main ========================================================================================
# libs
mkdir -p /mnt/mmcblk0p3/packing-0ad/usr/local/games/0ad
install -Dm755 binaries/system/*.so  /mnt/mmcblk0p3/packing-0ad/usr/local/games/0ad
rm -f /mnt/mmcblk0p3/packing-0ad/usr/local/games/0ad/libmozjs78-ps-debug.so
# bin
install -Dm755 binaries/system/pyrogenesis /mnt/mmcblk0p3/packing-0ad/usr/local/bin/pyrogenesis
install -m755 build/resources/0ad.sh /mnt/mmcblk0p3/packing-0ad/usr/local/bin/0ad
# icon
install -Dm644 build/resources/0ad.desktop /mnt/mmcblk0p3/packing-0ad/usr/local/share/applications/0ad.desktop
install -Dm644 build/resources/0ad.png /mnt/mmcblk0p3/packing-0ad/usr/local/share/pixmaps/0ad.png
  # edit 0ad.desktop manually
# strip
du -bhd0 /mnt/mmcblk0p3/packing-0ad/
# before
847.0M
# after
23.8M
# That's a lot~ of stripping O.o

# locale ======================================================================================
# belongs in datadir
mkdir -p /mnt/mmcblk0p3/packing-0ad-locale/usr/local/games/0ad/
cp -r binaries/data/l10n/ /mnt/mmcblk0p3/packing-0ad-locale/usr/local/games/0ad/
# remember to move the required config files back into the main extension

# data ========================================================================================
mkdir -p /mnt/mmcblk0p3/packing-0ad-data/usr/local/games/0ad/mods
cp -r binaries/data/tools/ /mnt/mmcblk0p3/packing-0ad-data/usr/local/games/0ad/
cp -r binaries/data/mods/mod/ /mnt/mmcblk0p3/packing-0ad-data/usr/local/games/0ad/mods
cp -r binaries/data/mods/public/ /mnt/mmcblk0p3/packing-0ad-data/usr/local/games/0ad/mods
# binaries/data/mods/public/public.zip --> 3G
cp -r binaries/data/config/ /mnt/mmcblk0p3/packing-0ad-data/usr/local/games/0ad/