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Dimitry Andric 07b202a847 Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to
get rid of testing explicitly for clang (using ${CC:T:Mclang}) in
individual Makefiles.

Instead, use the following extra macros, for use with clang:
- NO_WERROR.clang       (disables -Werror)
- NO_WCAST_ALIGN.clang  (disables -Wcast-align)
- NO_WFORMAT.clang	(disables -Wformat and friends)
- CLANG_NO_IAS		(disables integrated assembler)
- CLANG_OPT_SMALL	(adds flags for extra small size optimizations)

As a side effect, this enables setting CC/CXX/CPP in src.conf instead of
make.conf!  For clang, use the following:

CC=clang
CXX=clang++
CPP=clang-cpp

MFC after:	2 weeks
2012-02-28 18:30:18 +00:00
bin Whitespace cleanup: 2012-02-25 15:21:43 +00:00
cddl Analogous to r232059, add a parameter for the ZFS file system: 2012-02-26 16:30:39 +00:00
contrib Fix a race in top non-interactive mode. Use plain sleep(3) call instead 2012-02-27 20:52:20 +00:00
crypto Polish diff against upstream. 2012-02-13 11:59:59 +00:00
etc Add backlight control to ATI-graphics PowerBooks and iBooks. 2012-02-26 13:45:25 +00:00
games o Preserve argv[0] to use it later in usage(). 2012-01-28 15:29:43 +00:00
gnu Enable TLS support for ARM toolchain 2012-02-14 00:18:18 +00:00
include Revert r231673 and r231682 for now, until we can run a full make 2012-02-14 21:48:46 +00:00
kerberos5 Don't support OpenLDAP during lib32 build. 2011-12-06 12:03:01 +00:00
lib Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
libexec Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
release Add isci(4) to the hardware notes. 2012-02-23 18:54:33 +00:00
rescue Disable jail support in ifconfig when either building a rescue 2012-02-14 07:14:42 +00:00
sbin Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
secure Return NULL on error rather than ":", per the crypt(3) man page. 2012-02-22 01:23:14 +00:00
share Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
sys Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
tools Add is_beacon_bad. 2012-02-28 04:06:42 +00:00
usr.bin Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
usr.sbin Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
COPYRIGHT Happy 2012 to FreeBSD users in Samoa. 2011-12-31 04:38:04 +00:00
LOCKS Update LOCKS syntax. 2008-06-05 19:47:58 +00:00
MAINTAINERS Add isci(4) driver for amd64 and i386 targets. 2012-01-31 19:38:18 +00:00
Makefile delete-old does not have delete-old-libs dependency. 2012-02-16 14:08:14 +00:00
Makefile.inc1 Allow specification of build shell for the buildenv target. 2012-01-30 20:19:28 +00:00
Makefile.mips Retire TARGET_ABI. 2011-01-07 20:26:33 +00:00
ObsoleteFiles.inc Correct pathname for manpages after libarchive 3.0.3 update. 2012-02-28 14:35:36 +00:00
README Add the cddl/ directory. 2010-11-14 11:32:56 +00:00
UPDATING Switch getifaddrs(3) to the new API introduced in r231505. Also remove 2012-02-11 06:05:40 +00:00

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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://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, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
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 sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


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.

games		Amusements.

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.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html