Upstream release SWIG 4.0.0 disabled support for Pike: 2019-02-04: wsfulton [Pike] #1447 Pike has been disabled as a target language in SWIG as part of a clean up to remove target languages that have been neglected/not functional.
And now: $ swig -pike Target language option -pike (Pike) is no longer supported. So this bug can be closed once upstream version 4.0.x is packaged. Cheers, Olly