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Document universe better

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Document the kernels and worlds targets. Document the TARGETS and EXTRA_TARGETS
variables.

Reviewed by: brooks, bdrewery, emaste (LGTM)
MFC After: 3 days
Differential Revision: https://reviews.freebsd.org/D24212
This commit is contained in:
Warner Losh 2020-03-31 22:41:53 +00:00
parent c9870c1542
commit e1b9162f48
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=359496
1 changed files with 22 additions and 1 deletions
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23
share/man/man7/build.7
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@ -289,6 +289,18 @@ for all kernels for that architecture,
including
.Pa LINT .
This command takes a long time.
.It Cm kernels
Like
.Cm universe
with
.Va WITHOUT_WORLDS
defined so only the kernels for each architecture are built.
.It Cm worlds
Like
.Cm universe
with
.Va WITHOUT_KERNELS
defined so only the worlds for each architecture are built.
.It Cm update
Get updated sources as configured in
.Xr make.conf 5 .
@ -761,7 +773,7 @@ The default action is to build documentation for all languages.
.Pp
Builds using the
.Cm universe
target are influenced by the following
and related targets are influenced by the following
.Xr make 1
variables:
.Bl -tag -width ".Va MAKE_JUST_KERNELS"
@ -786,6 +798,15 @@ target for each supported architecture instead of the default action of
building a world and one or more kernels.
This variable implies
.Va WITHOUT_KERNELS .
.It Va TARGETS
Only build the listed targets instead of each supported architecture.
.It Va EXTRA_TARGETS
In addition to the supported architectures, build the semi-supported
architectures.
A semi-supported architecture has build support in the
.Fx
tree, but receives significantly less testing and is generally for
fringe uses that do not have a wide appeal.
.El
.Sh FILES
.Bl -tag -width ".Pa /usr/share/examples/etc/make.conf" -compact