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From: Adrian Chadd <adrian@freebsd.org>
To: Warner Losh <imp@bsdimp.com>
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Cc: freebsd-arch@freebsd.org
Subject: Re: Request for help: how do teach module building about kernel
	options?
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On 3 January 2012 15:31, Warner Losh <imp@bsdimp.com> wrote:

> Please find enclosed a proposed patch. =A0This will not build, of course,=
 since there's no file in the tree mesh_baby.c, so if you have IEEE80211_SU=
PPORT_MESH defined, it won't work. =A0It keys off the actual define.
>
> It even works with devices (which define DEV_xxx), but only if you have i=
t in the options file like isa (eg, you need to tell config to generate it)=
.
>
> Comments?

I don't strictly need the SRCS line just yet - I can wrap it up in an
if: (not correct make fu, but you get the idea):

.if (KERNOPT_IEEE80211_SUPPORT_MESH =3D=3D 1)
SRCS+=3D ieee80211_mesh.c
.endif

.if (KERNOPT_IEEE80211_SUPPORT_TDMA =3D=3D 1)
SRCS+=3D ieee80211_tdma.c
.endif

What do you mean about DEV_xxx? Can you give me an example to look at
in the sys directory?


Adrian