The attached patch makes GSSAPI support optional for ftp/curl.
In case of WITHOUT_GSSAPI, this allows to build curl without pulling in on one of the kerberos/heimdal ports.
This PR is somewhat related to ports/181004 but I have no opinion on what the default should be in case of WITHOUT_GSSAPI and am fine with having to disable GSSAPI support once.
Fix: Patch attached with submission follows:
Over to maintainer (via the GNATS Auto Assign Tool)
Disabling GSSAPI is already supported. Please uncheck all GSSAPI options
(GSSAPI_BASE, HEIMDAL_PORT and KRB5_PORT).