Add build-wayland step to continuous integration.

.github/workflows/build.yml

@@ -41,6 +41,36 @@ jobs:
       # Execute the build.  You can specify a specific target with "--target <NAME>"
       run: cmake --build . --config $BUILD_TYPE
 
+  build-wayland:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install prerequisites
+      run: sudo apt-get update -y && sudo apt-get install -y libasound2-dev libglu1-mesa-dev libwayland-dev wayland-protocols libdbus-1-dev libxkbcommon-dev libegl-dev libpangocairo-1.0-0 libopengl-dev libpango1.0-dev libgtk-3-dev
+      
+    - name: Create Build Environment
+      # Some projects don't allow in-source building, so create a separate build directory
+      # We'll use this as our working directory for all subsequent commands
+      run: cmake -E make_directory ${{github.workspace}}/build
+      
+    - name: Configure CMake
+      # Use a bash shell so we can use the same syntax for environment variable
+      # access regardless of the host operating system
+      shell: bash
+      working-directory: ${{github.workspace}}/build
+      # Note the current convention is to use the -S and -B options here to specify source
+      # and build directories, but this is only available with CMake 3.13 and higher.
+      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DOPTION_USE_WAYLAND=1
+
+    - name: Build
+      working-directory: ${{github.workspace}}/build
+      shell: bash
+      # Execute the build.  You can specify a specific target with "--target <NAME>"
+      run: cmake --build . --config $BUILD_TYPE
+
   build-macos:
     # The CMake configure and build commands are platform agnostic and should work equally
     # well on Windows or Mac.  You can convert this to a matrix build if you need