There seems to be a problem compiling tclspice on
ubuntu/amd64:
...
checking build system type... Invalid configuration
`x86_64-unknown-linux-gnu': machine `x86_64-unknown'
not recognized
...
ltconfig: you must specify a host type if you use
`--no-verify'
Try `ltconfig --help' for more information.
configure: error: libtool configure failed