Xbox NXDK platform

.github/workflows/xbox_nxdk.yml

@@ -0,0 +1,61 @@
+name: Xbox
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types: [ opened, synchronize ]
+
+jobs:
+  xbox:
+    runs-on: ubuntu-latest
+    env:
+      NXDK_DIR: /opt/nxdk
+    steps:
+    - name: Install APT packages
+      run: sudo apt-get update && sudo apt-get install -y clang llvm lld bison flex cmake git gettext smpq
+
+    - name: Clone NXDK Repo
+      shell: bash
+      run: git clone --recursive --depth 1 --branch devilutionx https://github.com/glebm/nxdk.git "$NXDK_DIR"
+
+    - name: Build NXDK
+      shell: bash
+      run: PATH="${NXDK_DIR}/bin:$PATH" make -j $(nproc) -C "$NXDK_DIR" NXDK_ONLY=1
+
+    - name: Work around https://github.com/XboxDev/nxdk/issues/467
+      run: >
+        mkdir -p "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys" &&
+        echo "#pragma once // Generated" > "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/types.h" &&
+        echo "typedef long off_t;" >> "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/types.h"
+
+    - name: Work around https://github.com/XboxDev/nxdk/issues/464
+      run: >
+        mkdir -p "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys" &&
+        echo "#pragma once // Generated" > "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/stat.h" &&
+        echo "#include <stddef.h>" >> "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/stat.h" &&
+        echo "struct _stat { size_t st_size; int st_mode; int st_mtime; int st_atime; int st_nlink; };" >> "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/stat.h" &&
+        echo "struct _stati64 { size_t st_size; int st_mode; int st_mtime; int st_atime; int st_nlink; };" >> "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/stat.h" &&
+        echo "static int _stati64(const char* x, ...) { return 0; };" >> "${NXDK_DIR}/lib/xboxrt/libc_extensions/sys/stat.h"
+
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+
+    - name: Configure CMake
+      working-directory: ${{github.workspace}}
+      run: cmake -S. -Bbuild-xbox -DCMAKE_TOOLCHAIN_FILE=/opt/nxdk/share/toolchain-nxdk.cmake
+
+    - name: Build
+      working-directory: ${{github.workspace}}
+      shell: bash
+      run: cmake --build build-xbox -j $(nproc) --target package
+
+    - name: Upload-Package
+      if: ${{ !env.ACT }}
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx
+        path: build-xbox/devilutionx

CMake/Platforms.cmake

@@ -67,3 +67,7 @@ endif()
 if(UWP_LIB)
   include(platforms/uwp_lib)
 endif()
+
+if(NXDK)
+  include(platforms/xbox_nxdk)
+endif()

CMake/platforms/xbox_nxdk.cmake

@@ -0,0 +1,12 @@
+set(NONET ON)
+set(ASAN OFF)
+set(UBSAN OFF)
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/xbox_nxdk/finders")
+
+set(DEVILUTIONX_SYSTEM_BZIP2 OFF)
+
+set(CMAKE_THREAD_LIBS_INIT "-lpthread")
+set(CMAKE_HAVE_THREADS_LIBRARY 1)
+set(CMAKE_USE_WIN32_THREADS_INIT 0)
+set(CMAKE_USE_PTHREADS_INIT 1)

CMake/platforms/xbox_nxdk/finders/FindPNG.cmake

@@ -0,0 +1,5 @@
+if(NOT TARGET PNG::PNG)
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(PNG REQUIRED IMPORTED_TARGET libpng)
+  add_library(PNG::PNG ALIAS PkgConfig::PNG)
+endif()

CMake/platforms/xbox_nxdk/finders/FindSDL2.cmake

@@ -0,0 +1,7 @@
+if(NOT TARGET SDL2::SDL2)
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(SDL2 REQUIRED IMPORTED_TARGET sdl2)
+  add_library(SDL2::SDL2 ALIAS PkgConfig::SDL2)
+  add_library(SDL2_nomain INTERFACE)
+  add_library(SDL2::SDL2main ALIAS SDL2_nomain)
+endif()

CMake/platforms/xbox_nxdk/finders/FindZLIB.cmake

@@ -0,0 +1,5 @@
+if(NOT TARGET ZLIB::ZLIB)
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(ZLIB REQUIRED IMPORTED_TARGET zlib)
+  add_library(ZLIB::ZLIB ALIAS PkgConfig::ZLIB)
+endif()