Update SDL to 2.0.18

libs/SDL2/.github/workflows/android.yml

@@ -0,0 +1,14 @@
+name: Build (Android)
+
+on: [push, pull_request]
+
+jobs:
+  android:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: nttld/setup-ndk@v1
+        with:
+          ndk-version: r21e
+      - name: Build
+        run: ./build-scripts/androidbuildlibs.sh

libs/SDL2/.github/workflows/emscripten.yml

@@ -0,0 +1,16 @@
+name: Build (Emscripten)
+
+on: [push, pull_request]
+
+jobs:
+  emscripten:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: mymindstorm/setup-emsdk@v10
+        with:
+          version: 2.0.27
+      - name: Configure CMake
+        run: emcmake cmake -B build
+      - name: Build
+        run: cmake --build build/

libs/SDL2/.github/workflows/ios.yml

@@ -0,0 +1,20 @@
+name: Build (iOS/tvOS)
+
+on: [push, pull_request]
+
+jobs:
+  Build:
+    name: ${{ matrix.platform.name }}
+    runs-on: macos-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+        - { name: iOS, target: Static Library-iOS, sdk: iphoneos }
+        - { name: tvOS, target: Static Library-tvOS, sdk: appletvos }
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build
+        run: xcodebuild -project Xcode/SDL/SDL.xcodeproj -target '${{ matrix.platform.target }}' -configuration Release -sdk ${{ matrix.platform.sdk }} clean build

libs/SDL2/.github/workflows/main.yml

@@ -0,0 +1,88 @@
+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  Build:
+    name: ${{ matrix.platform.name }}
+    runs-on: ${{ matrix.platform.os }}
+
+    defaults:
+      run:
+        shell: ${{ matrix.platform.shell }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+        - { name: Windows (x64),          os: windows-latest, shell: pwsh, flags: -A x64 }
+        - { name: Windows (x86),          os: windows-latest, shell: pwsh, flags: -A Win32 }
+        - { name: Windows (clang-cl x64), os: windows-latest, shell: pwsh, flags: -T ClangCL -A x64 }
+        - { name: Windows (clang-cl x86), os: windows-latest, shell: pwsh, flags: -T ClangCL -A Win32 }
+        - { name: Windows (ARM64),        os: windows-latest, shell: pwsh, flags: -A ARM64 }
+        - { name: Windows (mingw32),      os: windows-latest, shell: 'msys2 {0}', msystem: mingw32, msys-env: mingw-w64-i686 }
+        - { name: Windows (mingw64),      os: windows-latest, shell: 'msys2 {0}', msystem: mingw64, msys-env: mingw-w64-x86_64 }
+        - { name: Linux,                  os: ubuntu-20.04,   shell: sh,   flags: -GNinja }
+        - { name: MacOS,                  os: macos-latest,   shell: sh }
+
+    steps:
+    - name: Set up MSYS2
+      if: matrix.platform.shell == 'msys2 {0}'
+      uses: msys2/setup-msys2@v2
+      with:
+        msystem: ${{ matrix.platform.msystem }}
+        install: >-
+          ${{ matrix.platform.msys-env }}-gcc
+          ${{ matrix.platform.msys-env }}-cmake
+          ${{ matrix.platform.msys-env }}-ninja
+          ${{ matrix.platform.msys-env }}-pkg-config
+
+    - name: Setup Linux dependencies
+      if: runner.os == 'Linux'
+      run: |
+        sudo apt-get update
+        sudo apt-get install wayland-protocols \
+          pkg-config \
+          ninja-build \
+          libasound2-dev \
+          libdbus-1-dev \
+          libegl1-mesa-dev \
+          libgl1-mesa-dev \
+          libgles2-mesa-dev \
+          libglu1-mesa-dev \
+          libibus-1.0-dev \
+          libpulse-dev \
+          libsdl2-2.0-0 \
+          libsndio-dev \
+          libudev-dev \
+          libwayland-dev \
+          libwayland-client++0 \
+          wayland-scanner++ \
+          libwayland-cursor++0 \
+          libx11-dev \
+          libxcursor-dev \
+          libxext-dev \
+          libxi-dev \
+          libxinerama-dev \
+          libxkbcommon-dev \
+          libxrandr-dev \
+          libxss-dev \
+          libxt-dev \
+          libxv-dev \
+          libxxf86vm-dev \
+          libdrm-dev \
+          libgbm-dev\
+          libpulse-dev \
+          libpango1.0-dev
+        sudo apt install meson
+        git clone --depth 1 https://gitlab.gnome.org/jadahl/libdecor.git --branch 0.1.0
+        cd libdecor
+        meson build --buildtype release -Ddemo=false -Ddbus=disabled
+        ninja -C build
+        sudo meson install -C build
+    - uses: actions/checkout@v2
+    - name: Configure CMake
+      run: cmake -B build -DSDL_TEST=ON ${{ matrix.platform.flags }}
+    - name: Build
+      run: cmake --build build/
+

libs/SDL2/.github/workflows/riscos.yml

@@ -0,0 +1,28 @@
+name: Build (RISC OS)
+
+on: [push, pull_request]
+
+jobs:
+  autotools:
+    name: autotools
+    runs-on: ubuntu-latest
+    container: riscosdotinfo/riscos-gccsdk-4.7:latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Configure
+      run: ./configure --host=arm-unknown-riscos --disable-gcc-atomics
+    - name: Build
+      run: make -j`nproc`
+
+  cmake:
+    name: CMake
+    runs-on: ubuntu-latest
+    container: riscosdotinfo/riscos-gccsdk-4.7:latest
+    steps:
+    - name: Setup dependencies
+      run: apt-get update && apt-get install -y cmake ninja-build
+    - uses: actions/checkout@v2
+    - name: Configure CMake
+      run: cmake -S. -Bbuild -G Ninja -DCMAKE_TOOLCHAIN_FILE=/home/riscos/env/toolchain-riscos.cmake -DRISCOS=ON -DSDL_GCC_ATOMICS=OFF -DCMAKE_BUILD_TYPE=Release
+    - name: Build
+      run: cmake --build build

libs/SDL2/.github/workflows/vita.yaml

@@ -0,0 +1,23 @@
+name: Build (Sony Playstation Vita)
+
+on: [push, pull_request]
+
+defaults:
+  run:
+    shell: sh
+
+jobs:
+  vita:
+    runs-on: ubuntu-latest
+    container: 
+      image: vitasdk/vitasdk:latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install CMake and GNU Make
+      run: |
+        apk update 
+        apk add cmake make
+    - name: Configure CMake
+      run: cmake -S. -Bbuild -DCMAKE_TOOLCHAIN_FILE=${VITASDK}/share/vita.toolchain.cmake -DCMAKE_BUILD_TYPE=Release
+    - name: Build
+      run: cmake --build build