This package doesn't build

This is an excerpt of the build log

starting phase `pre-check'

phase `pre-check' succeeded after 0.0 seconds

starting phase `check'

_XSERVTransmkdir: ERROR: euid != 0,directory /tmp/.X11-unix will not be created.

This is what I was suggested on the gspell mailing list ( I already attempted that suggestion, with no result)

Any help appreciated

Thanks in advance