161 lines
4.6 KiB
Groff
161 lines
4.6 KiB
Groff
.\" Copyright (c) 2000
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.\" Mike W. Meyer
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 13, 2004
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.Dt BUILD 7
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.Os
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.Sh NAME
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.Nm build
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.Nd information on how to build the system
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.Sh DESCRIPTION
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The source for the
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.Fx
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system and applications are contained in three different directories,
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normally
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.Pa /usr/src ,
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.Pa /usr/doc ,
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and
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.Pa /usr/ports .
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.Pa /usr/src
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contains the
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.Dq "base system"
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sources, which is loosely defined as the things required to rebuild
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the system to a useful state.
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.Pa /usr/doc
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contains the source for the system documentation, excluding the manual
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pages.
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.Pa /usr/ports
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is a tree that provides a consistent interface for building and
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installing third party applications.
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.Pp
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The
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.Xr make 1
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command is used in each of these directories to build and install the
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things in that directory.
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Issuing the
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.Xr make 1
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command in any directory or
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subdirectory of those directories has the same effect as issuing the
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same command in all subdirectories of that directory.
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With no target specified, the things in that directory are just built.
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The following
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list provides the names and actions for other targets:
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.Bl -tag -width indent-two
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.It Cm clean
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Removes any files created during the build process.
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.It Cm install
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Installs the results of the build for this directory.
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.It Cm update
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Gets updated sources as configured in
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.Pa /etc/make.conf .
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.El
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.Pp
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The other
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.Pa /usr/src
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make targets are:
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.Bl -tag -width indent-two
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.It Cm buildworld
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Rebuild everything but the kernel, configure files in
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.Pa /etc ,
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and release.
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.It Cm installworld
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Install everything built by
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.Cm buildworld .
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.It Cm buildkernel
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Rebuild the kernel and the kernel modules.
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.It Cm installkernel
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Install the kernel and the kernel modules.
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.It Cm reinstallkernel
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Reinstall the kernel and the kernel modules.
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.El
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.Pp
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For more information about the ports build process, see
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.Xr ports 7 .
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.Sh ENVIRONMENT
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.Bl -tag -width ".Va TARGET_ARCH"
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.It Va TARGET_ARCH
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The target machine processor architecture.
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This is analogous to the
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.Dq Nm uname Fl p
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output.
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Set this to cross-build for a different architecture.
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.It Va TARGET
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The target hardware platform.
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This is analogous to the
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.Dq Nm uname Fl m
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output.
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This is necessary to cross-build some target architectures.
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For example, cross-building for PC98 machines requires
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.Va TARGET_ARCH Ns = Ns Li i386
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and
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.Va TARGET Ns = Ns Li pc98 .
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.It Va NO_WERROR
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If defined, warnings will not cause the build to halt, even if the
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makefile says otherwise.
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.It Va DESTDIR
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The directory hierarchy where the resulting binaries will be
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installed.
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.El
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.Sh FILES
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.Bl -tag -width ".Pa /usr/share/examples/etc/make.conf" -compact
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.It Pa /etc/make.conf
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.It Pa /usr/doc/Makefile
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.It Pa /usr/doc/share/mk/doc.project.mk
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.It Pa /usr/ports/Mk/bsd.port.mk
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.It Pa /usr/ports/Mk/bsd.sites.mk
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.It Pa /usr/share/examples/etc/make.conf
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.It Pa /usr/src/Makefile
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.It Pa /usr/src/Makefile.inc1
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.El
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.Sh EXAMPLES
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For an
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.Dq approved
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method of updating your system from the latest sources,
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please see the
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.Sx COMMON ITEMS
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section in
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.Pa src/UPDATING .
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.Pp
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The following sequence of commands can be used to cross-build the
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system for the Alpha architecture on an i386 host:
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.Bd -literal -offset indent
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cd /usr/src
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make TARGET_ARCH=alpha buildworld
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make TARGET_ARCH=alpha DESTDIR=/clients/axp installworld
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.Ed
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.Sh SEE ALSO
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.Xr cc 1 ,
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.Xr install 1 ,
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.Xr make 1 ,
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.Xr make.conf 5 ,
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.Xr ports 7 ,
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.Xr release 7 ,
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.Xr mergemaster 8 ,
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.Xr reboot 8 ,
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.Xr shutdown 8
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.Sh AUTHORS
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.An Mike W. Meyer Aq mwm@mired.org .
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