Attempt 1: Cross compilation of pcsx2

snapcraft.yaml

name: pcsx2
version: 1.5.0
architectures:
  - build-on: amd64
    run-on:
      - amd64
      - i386
summary: 'Playstation 2 Emulator'
description: "PCSX2 is a Playstation 2 emulator, a free program that tries to\nreplicate the Playstation 2 console to enable you to play PS2 games on your PC."
confinement: strict
base: core18
grade: devel
layout:
  /usr/lib/i386-linux-gnu/pcsx2:
      bind: $SNAP/usr/lib/i386-linux-gnu/pcsx2
environment: 
     LD_LIBRARY_PATH: $LD_LIBRARY_PATH:/snap/pcsx2/current/usr/lib/i386-linux-gnu:/snap/pcsx2/current/lib/i386-linux-gnu
apps:
  pcsx2:
    command: desktop-launch  $SNAP/usr/games/PCSX2
    plugs:
      - desktop
      - joystick
      - network
      - network-bind
      - opengl
      - pulseaudio
      - screen-inhibit-control
      - wayland
      - x11
parts:
  pcsx2:
    plugin: cmake
    source: 'https://github.com/PCSX2/pcsx2.git'
    configflags:
      - '-DBIN_DIR=/usr/games'
      - '-DBUILD_REPLAY_LOADERS=FALSE'
      - '-DCMAKE_BUILD_STRIP=TRUE'
      - '-DCMAKE_BUILD_TYPE=Release'
      - '-DCMAKE_LIBRARY_PATH=/usr/lib/i386-linux-gnu'
      - '-DCMAKE_TOOLCHAIN_FILE=cmake/linux-compiler-i386-multilib.cmake'
      - '-DDISABLE_ADVANCE_SIMD=TRUE'
      - '-DDISABLE_CHEATS_ZIP=FALSE'
      - '-DDISABLE_PCSX2_WRAPPER=TRUE'
      - '-DDOC_DIR=/usr/share/doc/pcsx2'
      - '-DEXTRA_PLUGINS=FALSE'
      - '-DGAMEINDEX_DIR=/usr/share/games/pcsx2'
      - '-DGTK3_API=FALSE'
      - '-DGTK2_GLIBCONFIG_INCLUDE_DIR=/usr/lib/i386-linux-gnu/glib-2.0/include'
      - '-DGTK2_GDKCONFIG_INCLUDE_DIR=/usr/lib/i386-linux-gnu/gtk-2.0/include' 
      - '-DGTK2_INCLUDE_DIRS=/usr/lib/i386-linux-gnu/gtk-2.0'
      - '-DPACKAGE_MODE=TRUE'
      - '-DPLUGIN_DIR=/usr/lib/i386-linux-gnu/pcsx2'
      - '-DREBUILD_SHADER=TRUE'
      - '-DXDG_STD=TRUE'
    build-packages:
      - cmake
      - g++-multilib
      - gcc-multilib
    stage-packages:
      - 'glib-networking:i386'
      - 'libaio1:i386'
      - 'libatk-bridge2.0-0:i386'
      - 'libatk1.0-0:i386'
      - 'libatspi2.0-0:i386'
      - 'libc-bin:i386'
      - 'libcairo-gobject2:i386'
      - 'libcolord2:i386'
      - 'libdatrie1:i386'
      - 'libepoxy0:i386'
      - 'libgail-common:i386'
      - 'libgail18:i386'
      - 'libgdk-pixbuf2.0-0:i386'
      - 'libgraphite2-3:i386'
      - 'libgtk-3-0:i386'
      - 'libgtk2.0-0:i386'
      - 'libharfbuzz0b:i386'
      - 'libice6:i386'
      - 'libjson-glib-1.0-0:i386'
      - 'libnotify4:i386'
      - 'libpango-1.0-0:i386'
      - 'libpangocairo-1.0-0:i386'
      - 'libpangoft2-1.0-0:i386'
      - 'libportaudio2:i386'
      - 'libproxy1v5:i386'
      - 'librest-0.7-0:i386'
      - 'libsdl2-2.0-0:i386'
      - 'libsm6:i386'
      - 'libsoundtouch1:i386'
      - 'libsoup-gnome2.4-1:i386'
      - 'libsoup2.4-1:i386'
      - 'libwayland-cursor0:i386'
      - 'libwayland-egl1:i386'
      - 'libwxbase3.0-0v5:i386'
      - 'libwxgtk3.0-0v5:i386'
      - 'libxkbcommon0:i386'
      - 'notification-daemon:i386'
      - 'zlib1g:i386'
      - 'libpulse0:i386'
      - 'libgl1:i386'
    after:
      - enable-i386
  enable-i386:
    plugin: nil
    override-build: "snapcraftctl build\ndpkg --add-architecture i386\napt update\napt install libasound2-dev:i386 libgl1-mesa-dev:i386 libgtk2.0-dev:i386 liblzma-dev:i386 libpng-dev:i386 libsdl2-dev:i386 libsoundtouch-dev:i386 libwxbase3.0-dev:i386 libwxgtk3.0-dev:i386 libx11-dev:i386 portaudio19-dev:i386 zlib1g-dev:i386 libaio-dev:i386 -y\n apt remove"

  desktop-gnome-platform:
    source: 'https://github.com/ubuntu/snapcraft-desktop-helpers.git'
    source-subdir: gtk
    plugin: make
    make-parameters:
        - FLAVOR=gtk2
    build-packages:
        - libgtk-3-dev:i386
    override-build: "snapcraftctl build\nmkdir -pv $SNAPCRAFT_PART_INSTALL/gnome-platform\n"