Regenerate

This commit is contained in:
bdrewery 2016-04-14 22:10:37 +00:00
parent 3b0f72a627
commit b8bfec12ef

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@ -1,7 +1,7 @@
.\" DO NOT EDIT-- this file is automatically generated.
.\" from FreeBSD: head/tools/build/options/makeman 292283 2015-12-15 18:42:30Z bdrewery
.\" $FreeBSD$
.Dd April 13, 2016
.Dd April 14, 2016
.Dt SRC.CONF 5
.Os
.Sh NAME
@ -473,12 +473,12 @@ executable binary and shared library.
.\" from FreeBSD: head/tools/build/options/WITHOUT_DICT 156932 2006-03-21 07:50:50Z ru
Set to not build the Webster dictionary files.
.It Va WITH_DIRDEPS_BUILD
.\" from FreeBSD: head/tools/build/options/WITH_DIRDEPS_BUILD 297843 2016-04-12 03:37:42Z bdrewery
Enable building in meta mode.
This is an experimental build feature.
.\" from FreeBSD: head/tools/build/options/WITH_DIRDEPS_BUILD 298007 2016-04-14 22:00:49Z bdrewery
This is an experimental build system.
For details see
http://www.crufty.net/sjg/docs/freebsd-meta-mode.htm.
.Pp
Build commands can be seen from the top-level with:
.Dl make show-valid-targets
The build is driven by dirdeps.mk using
.Va DIRDEPS
stored in
@ -498,20 +498,16 @@ and child directories.
.Va NO_DIRDEPS_BELOW
will skip building any dirdeps and only build the current directory.
.Pp
As each target is made
.Xr make 1
produces a meta file which is used to capture (and compare)
the command line,
as well as any command output.
If
.Xr filemon 4
is available the meta file will also capture a record of files
used to produce the target by tracking syscalls.
This also utilizes the
.Va WITH_META_MODE
logic for incremental builds.
.Pp
The build will hide commands ran unless
.Va NO_SILENT
is defined.
.Pp
Note that there is currently no mass install feature for this.
.Pp
When set, it also enforces the following options:
.Pp
.Bl -item -compact
@ -1062,19 +1058,48 @@ Set to not build utilities for manual pages,
.Xr manctl 8 ,
and related support files.
.It Va WITH_META_MODE
.\" from FreeBSD: head/tools/build/options/WITH_META_MODE 297844 2016-04-12 03:40:13Z bdrewery
Create meta files when not doing DIRDEPS_BUILD.
.\" from FreeBSD: head/tools/build/options/WITH_META_MODE 298007 2016-04-14 22:00:49Z bdrewery
Creates
.Xr make 1
meta files when building, which can provide a reliable incremental build when
using
.Xr filemon 4 .
The meta file is created in the OBJDIR as
.Pa target.meta .
These meta files track the command ran, its output, and the current directory.
When the
.Xr filemon 4
module is loaded, dependencies will be tracked for all commands.
If any command, its dependencies, or files it generates are missing then
the target will be considered out-of-date and rebuilt.
module is loaded, any files used by the commands executed will be tracked as
dependencies for the target in its meta file.
The target will be considered out-of-date and rebuilt if any of the following
are true compared to the last build:
.Bl -bullet -compact
.It
The command to execute changes.
.It
The current working directory changes.
.It
The target's meta file is missing.
.It
[requires
.Xr filemon 4 ]
Files read, executed or linked to are newer than the target.
.It
[requires
.Xr filemon 4 ]
Files read, written, executed or linked are missing.
.El
The meta files can also be useful for debugging.
.Pp
The build will hide commands ran unless
.Va NO_SILENT
is defined.
.Pp
The build operates as it normally would otherwise.
This option originally invoked a different build system but that was renamed
to
.Va WITH_DIRDEPS_BUILD .
.Pp
This must be set in the environment, make command line, or
.Pa /etc/src-env.conf ,
not