Added pothos to windows CI 4

.github/workflows/build_linux_amd64.yml

@@ -36,7 +36,7 @@ jobs:
           # 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  -DOPT_BUILD_SDRPLAY_SOURCE=OFF
+          run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DOPT_BUILD_SDRPLAY_SOURCE=OFF
 
         - name: Build
           working-directory: ${{runner.workspace}}/build
@@ -72,8 +72,12 @@ jobs:
           run: vcpkg install fftw3:x64-windows glew:x64-windows glfw3:x64-windows
 
         - name: Install rtaudio
-          run: git clone https://github.com/thestk/rtaudio ; cd rtaudio ; mkdir build ; cd build ; cmake .. ; cmake --build . --config Release ; cmake --install .
+          run: git clone https://github.com/thestk/rtaudio ; cd rtaudio ; mkdir build ; cd build ; cmake .. -G "Visual Studio 15 2017 Win64" ; cmake --build . --config Release ; cmake --install .
+
+        - name: Prepare CMake
+          working-directory: ${{runner.workspace}}/build
+          run: cmake "$Env:GITHUB_WORKSPACE" "-DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake" -G "Visual Studio 15 2017 Win64"
 
         - name: Build
           working-directory: ${{runner.workspace}}/build
-          run: cmake .. "-DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake" -G "Visual Studio 15 2017 Win64"
+          run: cmake --build . --config Release