.It Cm HTTP_USER_AGENT: string
Define User-agent to be sent to HTTP server when getting reposity
data
.It Cm IGNORE_OSVERSION: boolean [FreeBSD specific]
Ignore FreeBSD OS version check, useful on -STABLE and -CURRENT branches.
Default: NO.
.It Cm INDEXDIR: string
If set, the directory to search for
.Cm INDEXFILE