For dxvk and vkd3d-proton building on Debian

dxvk_build.sh

#!/bin/bash

# Notes:
#
# For Debian build of dxvk and vkd3d-proton.
#
# 1. To build 64-bit and 32-bit dxvk:
#
# for bitness in 64 32; do project=dxvk bitness=$bitness dxvk_build.sh; done
#
# 2. To build 64-bit and 32-bit vkd3d-proton:
#
# for bitness in 64 32; do project=vkd3d bitness=$bitness dxvk_build.sh; done
#
# 3. To build both:
#
# for project in dxvk vkd3d; do for bitness in 64 32; do project=$project bitness=$bitness dxvk_build.sh; done; done
#

project=${project:-"dxvk"} # dxvk by default
dxvk_repo='https://github.com/doitsujin/dxvk.git'
vkd3d_repo='https://github.com/HansKristian-Work/vkd3d-proton.git'
dxvk_branch=${dxvk_branch:-"master"}

base_dir="${HOME}/build/${project}"
src_dir="${base_dir}/source"
bitness=${bitness:-64}
build_dir="${base_dir}/${project}/build_${bitness}"
dest_dir="${HOME}/mnt/vmshare/${project}"
lib_dir="lib${bitness}"
#cpuarch=${cpuarch:-"znver4"} # Ryzen by default. Change to your arch or "native" accordingly.
cross_file="build-win${bitness}.txt"
verbose=${verbose:-false}

if [[ "$project" != "dxvk" ]] && [[ "$project" != "vkd3d" ]]; then
  echo "Invalid project ${project} specified! Supported projects: dxvk, vkd3d"
  exit 1
fi

project_repo="${project}_repo"
project_repo="${!project_repo}"

if [[ "$bitness" != "64" ]] && [[ "$bitness" != "32" ]]; then
  echo "Invalid bitness ${bitness} specified! Supported bitnesses: 64, 32"
  exit 2
fi

function prepare() {
  sudo apt install meson glslang-tools mingw-w64-tools g++-mingw-w64-x86-64-posix g++-mingw-w64-i686-posix
  if (($? != 0)); then
    echo "Installation of build tools failed! Aborting."
    exit 3
  fi
}

function update_sources() {
  mkdir -p $(dirname "$src_dir")
  cd $(dirname "$src_dir")
  git clone --recursive "$project_repo" $(basename "$src_dir")
  cd "$src_dir"
  git reset --hard HEAD
  git clean -df
  git checkout master
  git pull --rebase --prune
  git checkout ${dxvk_branch}

  if (($? != 0)); then
    echo "Invalid branch or tag ${dxvk_branch}! Aborting"
    exit 4
  fi

  git submodule update --rebase --init --recursive
}

function build() {
  mkdir -p "$build_dir"
  rm -rfv ${build_dir}/*
  cd "$src_dir"

  #export CFLAGS="-march=${cpuarch}"
  #export CXXFLAGS="-march=${cpuarch}"

  meson setup --strip --cross-file "$cross_file" --buildtype release --prefix "$dest_dir" --libdir "$lib_dir" --bindir "$lib_dir" "$build_dir"
  cd "$build_dir"

  if $verbose; then
    ninja -v
  else
    ninja
  fi

  if (($? != 0)); then
    echo "Build failed!"
    exit 5
  fi
}

function publish() {
  cd "$build_dir"
  rm -rfv ${dest_dir}/${lib_dir}
  ninja install
}

###################################################

update_sources
prepare
build
publish

Note, the script now builds dxvk, vkd3d-proton and d8vk.

Removing d8vk since it's getting into upstream now and can't be built without conflicting with dxvk in the same installation.

Simplified set up, making sure only posix mingw is used, which avoids the need run update-alternatives.