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bdrewery 70c391eee8 Enable AUTO_OBJ by default if the OBJDIR is writable, only for in-tree builds.
This can be disabled by putting WITHOUT_AUTO_OBJ=yes in /etc/src-env.conf, not
/etc/src.conf, or passing it in the environment.

The purpose of this rather than simply flipping the default of AUTO_OBJ to yes
is to avoid hassling users with auto.obj.mk failures if the wanted OBJDIR is
not writable. It will fallback to writing to the source directory like it does
today if MAKEOBJDIRPREFIX is not writable.

The act of enabling MK_AUTO_OBJ disables all 'make obj' treewalks since
previous work has made those not run if MK_AUTO_OBJ==yes in Makefile.inc1.

Relnotes:	yes
Reviewed by:	sjg
Discussed at:	https://lists.freebsd.org/pipermail/freebsd-arch/2016-May/017805.html
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12841
2017-11-02 18:09:07 +00:00
bin DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
cddl DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
contrib DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
crypto Merge OpenSSL 1.0.2m. 2017-11-02 18:04:29 +00:00
etc bluetooth: Default to discoverable off 2017-11-01 18:58:54 +00:00
gnu build-tools: De-special-case the gcc tools build. 2017-10-31 19:02:05 +00:00
include libc: Do not refer to _DefaultRuneLocale in ctype inlines 2017-10-22 20:01:07 +00:00
kerberos5 DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
lib Disconnect libpathconv tests since they require external perl and do not work with kyua. 2017-10-31 19:52:30 +00:00
libexec DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
release Add option UNIFIED_OBJDIR, on by default, which moves the default build OBJDIR. 2017-11-01 21:22:05 +00:00
rescue DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
sbin Add -c to the usage statements. 2017-10-31 03:39:36 +00:00
secure Merge OpenSSL 1.0.2m. 2017-11-02 18:04:29 +00:00
share Enable AUTO_OBJ by default if the OBJDIR is writable, only for in-tree builds. 2017-11-02 18:09:07 +00:00
sys Take into account race conditions in case of accessed or modified bit 2017-11-02 14:08:38 +00:00
targets Reduce MAKEOBJDIRPREFIX path spam by specifying a direct objdir to use. 2017-11-02 18:08:36 +00:00
tests DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
tools Enable AUTO_OBJ by default if the OBJDIR is writable, only for in-tree builds. 2017-11-02 18:09:07 +00:00
usr.bin DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
usr.sbin Remove 'adding_user.7' 2017-11-01 01:22:33 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS
MAINTAINERS Add asomers as a pjdfstest co-maintainer per the project status change 2017-06-28 09:25:15 +00:00
Makefile Add a 'make cleanuniverse'. 2017-11-01 21:22:10 +00:00
Makefile.inc1 Reduce MAKEOBJDIRPREFIX path spam by specifying a direct objdir to use. 2017-11-02 18:08:36 +00:00
Makefile.libcompat Reduce MAKEOBJDIRPREFIX path spam by specifying a direct objdir to use. 2017-11-02 18:08:36 +00:00
ObsoleteFiles.inc Remove 'adding_user.7' 2017-11-01 01:22:33 +00:00
README Correct the URLs for both READMEs for tracking src 2017-10-29 20:29:31 +00:00
README.md Correct the URLs for both READMEs for tracking src 2017-10-29 20:29:31 +00:00
UPDATING Enable AUTO_OBJ by default if the OBJDIR is writable, only for in-tree builds. 2017-11-02 18:09:07 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information).

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables.

The buildkernel and installkernel targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process. See build(7), config(8), and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information.

Note: If you want to build and install the kernel with the buildkernel and installkernel targets, you might need to build world before. More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used.

Source Roadmap:

bin				System/user commands.

cddl			Various commands and libraries under the Common Development  
				and Distribution License.

contrib			Packages contributed by 3rd parties.

crypto			Cryptography stuff (see crypto/README).

etc				Template files for /etc.

gnu				Various commands and libraries under the GNU Public License.  
				Please see gnu/COPYING* for more information.

include			System include files.

kerberos5		Kerberos5 (Heimdal) package.

lib				System libraries.

libexec			System daemons.

release			Release building Makefile & associated tools.

rescue			Build system for statically linked /rescue utilities.

sbin			System commands.

secure			Cryptographic libraries and commands.

share			Shared resources.

sys				Kernel sources.

tests			Regression tests which can be run by Kyua.  See tests/README
				for additional information.

tools			Utilities for regression testing and miscellaneous tasks.

usr.bin			User commands.

usr.sbin		System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html