Installation guide

Selection of the DLPI option conﬁgures the Datalink Bridge Driver (DLB),

which implements a partial subset of the DLPI speciﬁcation. See the

Network Programmer’s Guide for more information.

The PPP option is dependent upon the INET option. The number of PPP

lines is conﬁgurable using the nppp parameter in the

/etc/sysconfigtab ﬁle. The default value for nppp is 1.

The SL option is dependent upon the INET option. The number of SLIP

lines is conﬁgurable using the nslip parameter in the

/etc/sysconfigtab ﬁle. The default value for nslip is 1.

The TRSRCF option is for Token Ring driver developers who want to use

the Token Ring Source Routing functionality for the extended Token Ring

Network. See the Network Programmer’s Guide for more information.

5.6.5.12 Terminal Subsystem

The following conﬁguration ﬁle entries deﬁne the code dependencies for

terminal subsystems. To determine which terminal subsystem is conﬁgured

into your kernel, include an entry from the following table in your

conﬁguration ﬁle:

Options Keyword Required Use

BSD_TTY Yes Berkeley (clist-based) TTY

LDTTY No STREAMS-based TTY

PCKT No STREAMS packet module

5.6.6 The makeoptions Keywords

Certain options are passed to the compiler, assembler, and linker when the

kernel is built. These options are identiﬁed with the makeoptions

keywords and take an argument of the form

argument

value

# makeoptions ASOPTS="-w"

makeoptions CDEBUGOPTS="-g3"

makeoptions PROFOPTS="-DPROFILING -DPROFTYPE=4"

makeoptions LOADADDR="ffffffff00000000"

# makeoptions LDOPTS="-x"

_______________________ Note _______________________

The ASOPTS=-w makeoption is commented out because using it

disables C compiler warning messages.

Conﬁguring the Kernel 5–55