Add a check for building for System V.

.github/workflows/check_ap2_systemv_full.yml

@@ -0,0 +1,32 @@
+name: Build Check (Nearly) Full AP2 on System V build in place
+
+on:
+  push:
+    branches: [ "danger" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install Dependencies
+      run: sudo apt-get -y --no-install-recommends install build-essential git xmltoman autoconf automake libtool libpopt-dev libdaemon libconfig-dev libasound2-dev libao-dev libjack-dev libpulse-dev libsoundio-dev libsndio-dev libglib2.0-dev libmosquitto-dev avahi-daemon libavahi-client-dev libssl-dev libsoxr-dev libplist-dev libsodium-dev libavutil-dev libavcodec-dev libavformat-dev uuid-dev xxd    
+    - name: Configure
+      run: |
+        autoreconf -i
+        ./configure --sysconfdir=/etc --with-alsa --with-ao --with-dummy --with-libdaemon --with-jack --with-pa --with-pipe --with-sndio --with-soundio --with-stdout --with-soxr --with-avahi --with-ssl=openssl --with-systemv --with-dbus-interface --with-mpris-interface --with-mqtt-client --with-airplay-2
+    - name: Make
+      run: |
+        make -j
+    - name: Install
+      run: |
+        sudo make install
+    - name: Invoke
+      run: |
+        sudo service shairport-sync start
+    - name: Terminate
+      run: |
+        sudo service shairport-sync stop
+