test CI warnings

azure-pipelines.yml

@@ -165,6 +165,7 @@ steps:
     sudo apt-get -qq -y install libx11-dev libxaw7-dev xfonts-utils qtbase5-dev qtmultimedia5-dev qtbase5-dev-tools
   condition: and(eq( variables['Agent.OS'], 'Linux' ), eq( variables.buildTarget, 'all'))
   workingDirectory: $(Agent.BuildDirectory)/$(netHackPath)
+  warningTaskFilters: '\[\-W+.+\]|^((vs|ms)build|ant(\s+.+)?|gradle(w)?(\s+.+)?|grunt|gulp|maven(\s+.+)?|xamarin(android|ios)|xcode(\s+.+)?|cmake|build\s+.+)$'
   displayName: 'Getting linux build dependencies'
 
 - bash: |