AT_BISON_CHECK([[input1.y]], [[1]], [[]],
[[input1.y: warning: foow fubar [-Wother]
foow.y:2.3-5.3: warning: foowat fubar [-Wother]
AT_BISON_CHECK([[input1.y]], [[1]], [[]],
[[input1.y: warning: foow fubar [-Wother]
foow.y:2.3-5.3: warning: foowat fubar [-Wother]