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Diff for /src/BUILDING between version 1.28 and 1.102

version 1.28, 2003/02/02 12:37:41 version 1.102, 2012/09/19 23:40:03
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 BUILDING(8)             NetBSD System Manager's Manual             BUILDING(8)  BUILDING(8)             NetBSD System Manager's Manual             BUILDING(8)
   
 NAME  NAME
      BUILDING - Procedure for building NetBSD from source code.       BUILDING -- Procedure for building NetBSD from source code.
   
 STATUS  
      This document is a work-in-progress.  As such, the information described  
      here may not match the reality of the build system as of this writing.  
      Once this document is completely in sync with reality, this paragraph  
      will be removed.  
   
      Discrepancies between this documentation and the current reality of im-  
      plementation are noted specially, as with the note below:  
   
      Note: This document applies only to platforms which use the new toolchain  
      as indicated by the default setting of TOOLCHAIN_MISSING in <bsd.own.mk>.  
      Platforms which have not yet been switched to the new toolchain should  
      continue building traditionally, using the notes specified in the file  
      UPDATING.  
   
 REQUIREMENTS  REQUIREMENTS
      NetBSD is designed to be buildable on most POSIX-compliant host systems.       NetBSD is designed to be buildable on most POSIX-compliant host systems.
Line 28  REQUIREMENTS
Line 13  REQUIREMENTS
      host system to create a build toolchain for the target architecture.  The       host system to create a build toolchain for the target architecture.  The
      host system must have at least C and C++ compilers in order to create the       host system must have at least C and C++ compilers in order to create the
      toolchain (make is not required); all other tools are created as part of       toolchain (make is not required); all other tools are created as part of
      the NetBSD build process.       the NetBSD build process.  (See the environment variables section below
        if you need to override or manually select your compilers.)
            Note: A couple of host toolchain components are not yet available  
            in the tools directory.  Also, some tools use non-POSIX, non-ANSI C  
            extensions and need to be standardized.  As a result, cross-compil-  
            ing from systems other than NetBSD is not currently supported.  
   
 FILES  FILES
    Source tree layout     Source tree layout
   
      doc/BUILDING.mdoc       doc/BUILDING.mdoc
                     This document (in -mdoc troff format; the original copy).                      This document (in -mdoc troff format; the original copy).
   
      BUILDING       This document (in plaintext).       BUILDING       This document (in plaintext).
   
      Makefile       The main Makefile for NetBSD; should only be run for na-       tools/compat/README
                     tive builds with an appropriately up-to-date version of                      Special notes for cross-hosting a NetBSD build on non-
                       NetBSD platforms.
   
        Makefile       The main Makefile for NetBSD; should only be run for
                       native builds with an appropriately up-to-date version of
                     NetBSD make(1).  (For building from out-of-date systems or                      NetBSD make(1).  (For building from out-of-date systems or
                     on a non-native host, see the build.sh shell script.)                      on a non-native host, see the build.sh shell script.)
   
Line 62  FILES
Line 46  FILES
                     Sources imported verbatim from third parties, without man-                      Sources imported verbatim from third parties, without man-
                     gling the existing build structure.  Other source trees in                      gling the existing build structure.  Other source trees in
                     bin through usr.sbin use the NetBSD make(1) ``reachover''                      bin through usr.sbin use the NetBSD make(1) ``reachover''
                     Makefile semantics when building these programs for a na-                      Makefile semantics when building these programs for a
                     tive host.                      native host.
   
      distrib/, etc/       distrib/, etc/
                     Sources for items used when making a full release snap-                      Sources for items used when making a full release snap-
                     shot, such as files installed in DESTDIR/etc on the desti-                      shot, such as files installed in DESTDIR/etc on the desti-
                     nation system, boot media, and release notes.                      nation system, boot media, and release notes.
   
      regress/       Regression test harness.  Can be cross-compiled, but only       tests/, regress/
                     run natively.                      Regression test harness.  Can be cross-compiled, but only
                       run natively.  tests/ uses the atf(7) test framework;
                       regress/ contains older tests that have not yet been
                       migrated to atf(7).
   
      sys/           NetBSD kernel sources.       sys/           NetBSD kernel sources.
   
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                     any of these directories are missing, they will be skipped                      any of these directories are missing, they will be skipped
                     during the build.                      during the build.
   
        x11/           ``Reachover'' build structure for X11R6; the source is in
                       X11SRCDIR.
   
    Build tree layout     Build tree layout
      The NetBSD build tree is described in hier(7), and the release layout is       The NetBSD build tree is described in hier(7), and the release layout is
      described in release(7).       described in release(7).
Line 92  CONFIGURATION
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    Environment variables     Environment variables
      Several environment variables control the behaviour of NetBSD builds.       Several environment variables control the behaviour of NetBSD builds.
   
      MACHINE           Machine type.       HOST_SH           Path name to a shell available on the host system and
                          suitable for use during the build.  The NetBSD build
                          system requires a modern Bourne-like shell with POSIX-
                          compliant features, and also requires support for the
                          ``local'' keyword to declare local variables in shell
                          functions (which is a widely-implemented but non-stan-
                          dardised feature).
   
                          Depending on the host system, a suitable shell may be
                          /bin/sh, /usr/xpg4/bin/sh, /bin/ksh (provided it is a
                          variant of ksh that supports the ``local'' keyword,
                          such as ksh88, but not ksh93), or /usr/local/bin/bash.
   
                          Most parts of the build require HOST_SH to be an abso-
                          lute path; however, build.sh allows it to be a simple
                          command name, which will be converted to an absolute
                          path by searching the PATH.
   
      MACHINE_ARCH      Machine architecture.       HOST_CC           Path name to C compiler used to create the toolchain.
   
        HOST_CXX          Path name to C++ compiler used to create the toolchain.
   
        MACHINE           Machine type, e.g., ``macppc''.
   
        MACHINE_ARCH      Machine architecture, e.g., ``powerpc''.
   
      MAKE              Path name to invoke make(1) as.       MAKE              Path name to invoke make(1) as.
   
      MAKEFLAGS         Flags to invoke make(1) with.       MAKEFLAGS         Flags to invoke make(1) with.  Note that build.sh
                          ignores the value of MAKEFLAGS passed in the environ-
                          ment, but allows MAKEFLAGS to be set via the -V option.
   
      MAKEOBJDIR        Directory to use as the .OBJDIR for the current direc-       MAKEOBJDIR        Directory to use as the .OBJDIR for the current direc-
                        tory.  Used only if MAKEOBJDIRPREFIX is not defined.                         tory.  The value is subjected to variable expansion by
                        MAKEOBJDIR can only be provided in the environment.                         make(1).  Typical usage is to set this variable to a
                          value involving the use of `${.CURDIR:S...}' or
      MAKEOBJDIRPREFIX  Top level directory of the object directory tree.  If                         `${.CURDIR:C...}', to derive the value of .OBJDIR from
                        this is defined, ${MAKEOBJDIRPREFIX}/${.CURDIR} is used                         the value of .CURDIR.  Used only if MAKEOBJDIRPREFIX is
                        as the .OBJDIR for the current directory.  The current                         not defined.  MAKEOBJDIR can be provided only in the
                        directory may be read only.  MAKEOBJDIRPREFIX can only                         environment or via the -O flag of build.sh; it cannot
                        be provided in the environment.                         usefully be set inside a Makefile, including mk.conf or
                          ${MAKECONF}.
   
        MAKEOBJDIRPREFIX  Top level directory of the object directory tree.  The
                          value is subjected to variable expansion by make(1).
                          build.sh will create the ${MAKEOBJDIRPREFIX} directory
                          if necessary, but if make(1) is used without build.sh,
                          then rules in <bsd.obj.mk> will abort the build if the
                          ${MAKEOBJDIRPREFIX} directory does not exist.  If the
                          value is defined and valid, then ${MAKEOBJDIRPRE-
                          FIX}/${.CURDIR} is used as the .OBJDIR for the current
                          directory.  The current directory may be read only.
                          MAKEOBJDIRPREFIX can be provided only in the environ-
                          ment or via the -M flag of build.sh; it cannot usefully
                          be set inside a Makefile, including mk.conf or
                          ${MAKECONF}.
   
    "make" variables     "make" variables
      Several variables control the behavior of NetBSD builds.  Unless other-       Several variables control the behavior of NetBSD builds.  Unless other-
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                  configuration file in order to set additional build parame-                   configuration file in order to set additional build parame-
                  ters, such as compiler flags.                   ters, such as compiler flags.
   
        BUILDSEED   GCC uses random numbers when compiling C++ code.  This vari-
                    able seeds the gcc random number generator using the -fran-
                    dom-seed flag with this value.  By default, it is set to
                    NetBSD-(majorversion).  Using a fixed value causes C++ bina-
                    ries to be the same when built from the same sources, result-
                    ing in identical (reproducible) builds.  Additional informa-
                    tion is available in the GCC documentation of -frandom-seed.
   
      DESTDIR     Directory to contain the built NetBSD system.  If set, spe-       DESTDIR     Directory to contain the built NetBSD system.  If set, spe-
                  cial options are passed to the compilation tools to prevent                   cial options are passed to the compilation tools to prevent
                  their default use of the host system's /usr/include,                   their default use of the host system's /usr/include,
                  /usr/lib, and so forth.  This pathname should not end with a                   /usr/lib, and so forth.  This pathname must be an absolute
                  slash (/) character (for installation into the system's root                   path, and should not end with a slash (/) character.  (For
                  directory, set DESTDIR to an empty string).  The directory                   installation into the system's root directory, set DESTDIR to
                  must reside on a file system which supports long file names                   an empty string, not to ``/'').  The directory must reside on
                  and hard links.                   a file system which supports long file names and hard links.
   
                  Default: Empty string if USETOOLS is ``yes''; unset other-                   Default: Empty string if USETOOLS is ``yes''; unset other-
                  wise.                   wise.
   
                    Note: build.sh will provide a default of destdir.MACHINE (in
                    the top-level .OBJDIR) unless run in `expert' mode.
   
      MAKECONF    The name of the make(1) configuration file.  Only settable in       MAKECONF    The name of the make(1) configuration file.  Only settable in
                  the process environment.                   the process environment.
   
                  Default: ``/etc/mk.conf''                   Default: ``/etc/mk.conf''
   
        MAKEVERBOSE
                    Level of verbosity of status messages.  Supported values:
   
                    0    No descriptive messages or commands executed by make(1)
                         are shown.
   
                    1    Brief messages are shown describing what is being done,
                         but the actual commands executed by make(1) are not dis-
                         played.
   
                    2    Descriptive messages are shown as above (prefixed with a
                         `#'), and ordinary commands performed by make(1) are
                         displayed.
   
                    3    In addition to the above, all commands performed by
                         make(1) are displayed, even if they would ordinarily
                         have been hidden through use of the ``@'' prefix in the
                         relevant makefile.
   
                    4    In addition to the above, commands executed by make(1)
                         are traced through use of the sh(1) ``-x'' flag.
   
                    Default: 2
   
      MKCATPAGES  Can be set to ``yes'' or ``no''.  Indicates whether prefor-       MKCATPAGES  Can be set to ``yes'' or ``no''.  Indicates whether prefor-
                  matted plaintext manual pages will be created during a build.                   matted plaintext manual pages will be created during a build.
   
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      MKCRYPTO    Can be set to ``yes'' or ``no''.  Indicates whether crypto-       MKCRYPTO    Can be set to ``yes'' or ``no''.  Indicates whether crypto-
                  graphic code will be included in a build; provided for the                   graphic code will be included in a build; provided for the
                  benefit of countries that do not allow strong cryptography.                   benefit of countries that do not allow strong cryptography.
                  Will not affect use of the standard low-security password en-                   Will not affect use of the standard low-security password
                  cryption system, crypt(3).                   encryption system, crypt(3).
   
                  Default: ``yes''                   Default: ``yes''
   
      MKDOC       Can be set to ``yes'' or ``no''.  Indicates whether system       MKDOC       Can be set to ``yes'' or ``no''.  Indicates whether system
                  documentation destined for DESTDIR/usr/share/doc will be in-                   documentation destined for DESTDIR/usr/share/doc will be
                  stalled during a build.                   installed during a build.
   
                    Default: ``yes''
   
        MKHTML      Can be set to ``yes'' or ``no''.  Indicates whether prefor-
                    matted HTML manual pages will be built and installed
   
                  Default: ``yes''                   Default: ``yes''
   
Line 173  CONFIGURATION
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                  Default: ``yes''                   Default: ``yes''
   
        MKKMOD      Can be set to ``yes'' or ``no''.  Indicates whether kernel
                    modules are built and installed.
   
                    Default: ``yes''
   
      MKLINT      Can be set to ``yes'' or ``no''.  Indicates whether lint(1)       MKLINT      Can be set to ``yes'' or ``no''.  Indicates whether lint(1)
                  will be run against portions of the NetBSD source code during                   will be run against portions of the NetBSD source code during
                  the build, and whether lint libraries will be installed into                   the build, and whether lint libraries will be installed into
Line 186  CONFIGURATION
Line 260  CONFIGURATION
                  Default: ``yes''                   Default: ``yes''
   
      MKNLS       Can be set to ``yes'' or ``no''.  Indicates whether Native       MKNLS       Can be set to ``yes'' or ``no''.  Indicates whether Native
                  Language System locale zone files will be compiled and in-                   Language System locale zone files will be compiled and
                  stalled during a build.                   installed during a build.
   
                  Default: ``yes''                   Default: ``yes''
   
Line 198  CONFIGURATION
Line 272  CONFIGURATION
   
                  Default: ``yes''                   Default: ``yes''
   
                    Note that setting MKOBJ to ``no'' is not recommended and may
                    cause problems when updating the tree with cvs(1).
   
      MKPIC       Can be set to ``yes'' or ``no''.  Indicates whether shared       MKPIC       Can be set to ``yes'' or ``no''.  Indicates whether shared
                  objects and libraries will be created and installed during a                   objects and libraries will be created and installed during a
                  build.  If set to ``no'', the entire built system will be                   build.  If set to ``no'', the entire built system will be
Line 208  CONFIGURATION
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      MKPICINSTALL       MKPICINSTALL
                  Can be set to ``yes'' or ``no''.  Indicates whether the ar(1)                   Can be set to ``yes'' or ``no''.  Indicates whether the ar(1)
                  format libraries (lib*_pic.a), used to generate shared li-                   format libraries (lib*_pic.a), used to generate shared
                  braries, are installed during a build.                   libraries, are installed during a build.
   
                  Default: ``yes''                   Default: ``yes''
   
Line 221  CONFIGURATION
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                  by default at times due to toolchain problems with profiled                   by default at times due to toolchain problems with profiled
                  code.                   code.
   
        MKREPRO     Can be set to ``yes'' or ``no''.  Create reproducable builds.
                    This enables different switches to make two builds from the
                    same source tree result in the same build results.
   
                    Default: ``no''
   
      MKSHARE     Can be set to ``yes'' or ``no''.  Indicates whether files       MKSHARE     Can be set to ``yes'' or ``no''.  Indicates whether files
                  destined to reside in DESTDIR/usr/share will be built and in-                   destined to reside in DESTDIR/usr/share will be built and
                  stalled during a build.  If set to ``no'', then all of                   installed during a build.  If set to ``no'', then all of
                  MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to                   MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to
                  ``no'' unconditionally.                   ``no'' unconditionally.
   
                  Default: ``yes''                   Default: ``yes''
   
      TOOLDIR     Directory to hold the host tools, once built.  This directory       MKSTRIPIDENT
                  should be unique to a given host system and NetBSD source                   Can be set to ``yes'' or ``no''.  Indicates whether RCS IDs,
                  tree.  (However, multiple targets may share the same TOOLDIR;                   for use with ident(1), should be stripped from program bina-
                  the target-dependent files have unique names.)  If unset, a                   ries and shared libraries.
                  default based on the uname(1) information of the host plat-  
                  form will be created in the .OBJDIR of src/tools.  
   
                  Default: Unset.                   Default: ``no''
   
      UNPRIVED    If set, then an unprivileged install will occur.  The user,       MKUNPRIVED  Can be set to ``yes'' or ``no''.  Indicates whether an
                  group, permissions, and file flags, will not be set on the                   unprivileged install will occur.  The user, group, permis-
                  installed item; instead the information will be appended to a                   sions, and file flags, will not be set on the installed
                  file called METALOG in DESTDIR.  The contents of METALOG is                   items; instead the information will be appended to a file
                  used during the generation of the distribution tar files to                   called METALOG in DESTDIR.  The contents of METALOG are used
                  ensure that the appropriate file ownership is stored.                   during the generation of the distribution tar files to ensure
                    that the appropriate file ownership is stored.
   
                  Default: Unset.                   Default: ``no''
   
        MKUPDATE    Can be set to ``yes'' or ``no''.  Indicates whether all
                    install operations intended to write to DESTDIR will compare
                    file timestamps before installing, and skip the install phase
                    if the destination files are up-to-date.  This also has
                    implications on full builds (see next subsection).
   
                    Default: ``no''
   
        MKX11       Can be set to ``yes'' or ``no''.  Indicates whether X11 is
                    built from X11SRCDIR.
   
      UPDATE      If set, then all install operations intended to write to                   Default: ``no''
                  DESTDIR will compare file timestamps before installing, and  
                  skip the install phase if the destination files are up-to-       TOOLDIR     Directory to hold the host tools, once built.  If specified,
                  date.  This also has implications on full builds (see next                   must be an absolute path.  This directory should be unique to
                  subsection).                   a given host system and NetBSD source tree.  (However, multi-
                    ple targets may share the same TOOLDIR; the target-dependent
                    files have unique names.)  If unset, a default based on the
                    uname(1) information of the host platform will be created in
                    the .OBJDIR of src.
   
                  Default: Unset.                   Default: Unset.
   
Line 273  CONFIGURATION
Line 370  CONFIGURATION
                         build or runtime problems when building the whole                          build or runtime problems when building the whole
                         NetBSD source tree.                          NetBSD source tree.
   
                  Default: ``yes'' if building all or part of a whole NetBSD                   Default: ``yes'', unless TOOLCHAIN_MISSING is set to ``yes''.
                  source tree (detected automatically); ``no'' otherwise (to  
                  preserve traditional semantics of the <bsd.*.mk> make(1) in-                   USETOOLS is also set to ``no'' when using <bsd.*.mk> outside
                  clude files).                   the NetBSD source tree.
   
        X11SRCDIR   Directory containing the X11R6 source.  If specified, must be
                    an absolute path.  The main X11R6 source is found in
                    X11SRCDIR/xfree/xc.
   
                    Default: NETBSDRCDIR/../xsrc, if that exists; otherwise
                    /usr/xsrc.
   
        X11FLAVOUR  The style of X11 cross-built, set to either ``Xorg'' or
                    ``XFree86''.
   
                    Default: ``Xorg'' on amd64, i386, macppc, shark and sparc64
                    platforms, ``XFree86'' on everything else.
   
    "make" variables for full builds     "make" variables for full builds
      These variables only affect the top level ``Makefile'' and do not affect       These variables only affect the top level ``Makefile'' and do not affect
      manually building subtrees of the NetBSD source code.       manually building subtrees of the NetBSD source code.
   
      INSTALLWORLDDIR  Location for the ``make installworld'' target to install       INSTALLWORLDDIR  Location for the ``make installworld'' target to install
                       to.                        to.  If specified, must be an absolute path.
   
                       Default: ``/''                        Default: ``/''
   
      MKOBJDIRS        Can be set to ``yes'' or ``no''.  Indicates whether ob-       MKOBJDIRS        Can be set to ``yes'' or ``no''.  Indicates whether
                       ject directories will be created automatically (via a                        object directories will be created automatically (via a
                       ``make obj'' pass) at the start of a build.                        ``make obj'' pass) at the start of a build.
   
                       Default: ``yes''                        Default: ``no''
   
      NBUILDJOBS       Now obsolete.  Use the make(1) option -j, instead (see                        If using build.sh, the default is ``yes''.  This may be
                       below)                        set back to ``no'' by giving build.sh the -o option.
   
        MKUPDATE         Can be set to ``yes'' or ``no''.  If set, then in addi-
                         tion to the effects described for MKUPDATE=yes above,
                         this implies the effects of NOCLEANDIR (i.e., ``make
                         cleandir'' is avoided).
   
                         Default: ``no''
   
                         If using build.sh, this may be set by giving the -u
                         option.
   
        NBUILDJOBS       Now obsolete.  Use the make(1) option -j, instead.  See
                         below.
   
                       Default: Unset.                        Default: Unset.
   
Line 305  CONFIGURATION
Line 428  CONFIGURATION
   
                       Default: Unset.                        Default: Unset.
   
                         See also MKUPDATE.
   
      NODISTRIBDIRS    If set, avoids the ``make distrib-dirs'' phase of a full       NODISTRIBDIRS    If set, avoids the ``make distrib-dirs'' phase of a full
                       build.  This skips running mtree(8) on DESTDIR, useful                        build.  This skips running mtree(8) on DESTDIR, useful
                       on systems where building as an unprivileged user, or                        on systems where building as an unprivileged user, or
Line 315  CONFIGURATION
Line 440  CONFIGURATION
   
      NOINCLUDES       If set, avoids the ``make includes'' phase of a full       NOINCLUDES       If set, avoids the ``make includes'' phase of a full
                       build.  This has the effect of preventing make(1) from                        build.  This has the effect of preventing make(1) from
                       thinking that some programs are out-of-date simply be-                        thinking that some programs are out-of-date simply
                       cause the system include files have changed.  However,                        because the system include files have changed.  However,
                       this option should not be used when updating the entire                        this option should not be used when updating the entire
                       NetBSD source tree arbitrarily; it is suggested to use                        NetBSD source tree arbitrarily; it is suggested to use
                       UPDATE in that case.                        MKUPDATE=yes instead in that case.
   
                       Default: Unset.                        Default: Unset.
   
      RELEASEDIR       If set, specifies the directory to which a release(7)       RELEASEDIR       If set, specifies the directory to which a release(7)
                       layout will be written at the end of a ``make release''.                        layout will be written at the end of a ``make release''.
                         If specified, must be an absolute path.
   
                       Default: Unset.                        Default: Unset.
   
      UPDATE           If set, then in addition to the effects described for                        Note: build.sh will provide a default of releasedir (in
                       UPDATE above, this implies the effects of NOCLEANDIR                        the top-level .OBJDIR) unless run in `expert' mode.
                       (i.e., ``make cleandir'' is avoided).  
   
 BUILDING  BUILDING
    "make" command line options     "make" command line options
      This is only a summary of options available to make(1); only the options       This is not a summary of all the options available to make(1); only the
      used most frequently with NetBSD builds are listed here.       options used most frequently with NetBSD builds are listed here.
   
      -j njob    Run up to njob make(1) subjobs in parallel.  Makefiles should       -j njob    Run up to njob make(1) subjobs in parallel.  Makefiles should
                 use .WAIT or have explicit dependancies as necessary to en-                  use .WAIT or have explicit dependencies as necessary to
                 force build ordering.  If you see build failures with -j,                  enforce build ordering.
                 please save complete build logs so the failures can be ana-  
                 lyzed.  
   
      -m dir     Specify the default directory for searching for system Make-       -m dir     Specify the default directory for searching for system Make-
                 file segments, mainly the <bsd.*.mk> files.  When building any                  file segments, mainly the <bsd.*.mk> files.  When building any
                 full NetBSD source tree, this should be set to the                  full NetBSD source tree, this should be set to the
                 ``share/mk'' directory in the source tree.  (This is set auto-                  ``share/mk'' directory in the source tree.  This is set auto-
                 matically when building from the top level.)                  matically when building from the top level, or when using
                   build.sh.
   
      -n         Display the commands that would have been executed, but do not       -n         Display the commands that would have been executed, but do not
                 actually execute them.  This will still cause recursion to                  actually execute them.  This will still cause recursion to
                 take place.                  take place.
   
      -v var     Print make(1)'s idea of the value of var.  Does not build any       -V var     Print make(1)'s idea of the value of var.  Does not build any
                 targets.                  targets.
   
      var=value  Set the variable var to value, overriding any setting speci-       var=value  Set the variable var to value, overriding any setting speci-
Line 370  BUILDING
Line 494  BUILDING
   
      clean      Remove program and library object code files.       clean      Remove program and library object code files.
   
      cleandir   Same as clean, but also remove preformatted documentation, de-       cleandir   Same as clean, but also remove preformatted documentation,
                 pendency files generated by ``make depend'', and any other                  dependency files generated by ``make depend'', and any other
                 files known to be created at build time.  ``make distclean''                  files known to be created at build time.
                 may be used as a synonym, for familiarity with a similar well-  
                 known convention.  
   
      depend     Create dependency files (.depend) containing more detailed in-       depend     Create dependency files (.depend) containing more detailed
                 formation about the dependencies of source code on header                  information about the dependencies of source code on header
                 files.  Allows programs to be recompiled automatically when a                  files.  Allows programs to be recompiled automatically when a
                 dependency changes.                  dependency changes.
   
Line 385  BUILDING
Line 507  BUILDING
                 This improves cache locality of the build since both passes                  This improves cache locality of the build since both passes
                 read the source files in their entirety.                  read the source files in their entirety.
   
      includes   Build and install system header files.  Typically needed be-       distclean  Synonym for cleandir.
                 fore any system libraries or programs can be built.  
        includes   Build and install system header files.  Typically needed
                   before any system libraries or programs can be built.
   
      install    Install programs, libraries, and documentation into DESTDIR.       install    Install programs, libraries, and documentation into DESTDIR.
                 Few files will be installed to DESTDIR/dev, DESTDIR/etc,                  Few files will be installed to DESTDIR/dev, DESTDIR/etc,
Line 406  BUILDING
Line 530  BUILDING
      Additional make(1) targets are usable specifically from the top source       Additional make(1) targets are usable specifically from the top source
      level to facilitate building the entire NetBSD source tree.       level to facilitate building the entire NetBSD source tree.
   
      build         Build the entire NetBSD system.  This orders portions of       build         Build the entire NetBSD system (except the kernel).  This
                    the source tree such that prerequisites will be built in                     orders portions of the source tree such that prerequisites
                    the proper order.                     will be built in the proper order.
   
      distribution  Do a ``make build'', and then install a full distribution       distribution  Do a ``make build'', and then install a full distribution
                    into DESTDIR, including files in DESTDIR/dev, DESTDIR/etc,                     (which does not include a kernel) into DESTDIR, including
                    DESTDIR/root and DESTDIR/var.                     files in DESTDIR/dev, DESTDIR/etc, DESTDIR/root and
                      DESTDIR/var.
   
      buildworld    As per ``make distribution'', except that it ensures that       buildworld    As per ``make distribution'', except that it ensures that
                    DESTDIR is not the root directory.                     DESTDIR is not the root directory.
   
      installworld  Install the distribution from DESTDIR to INSTALLWORLDDIR       installworld  Install the distribution from DESTDIR to INSTALLWORLDDIR,
                    (which defaults to the root directory).  Ensures that                     which defaults to the root directory.  Ensures that
                    INSTALLWORLDDIR is the not root directory if cross compil-                     INSTALLWORLDDIR is not the root directory if cross compil-
                    ing.                     ing.
   
                    Note: It is highly recommended that you upgrade your kernel                     The INSTALLSETS environment variable may be set to a space-
                    and reboot before performing this operation.                     separated list of distribution sets to be installed.  By
                      default, all sets except ``etc'' and ``xetc'' are
                      installed, so most files in INSTALLWORLDDIR/etc will not be
                      installed or modified.
   
                      Note: Before performing this operation with
                      INSTALLWORLDDIR=/, it is highly recommended that you
                      upgrade your kernel and reboot.  After performing this
                      operation, it is recommended that you use etcupdate(8) to
                      update files in INSTALLWORLDDIR/etc, and postinstall(8) to
                      check for or fix inconsistencies.
   
      sets          Create distribution sets from DESTDIR into       sets          Create distribution sets from DESTDIR into
                    RELEASEDIR/MACHINE/binary/sets.  Should be run after ``make                     RELEASEDIR/RELEASEMACHINEDIR/binary/sets.  Should be run
                    distribution'' (as ``make build'' does not install all of                     after ``make distribution'', as ``make build'' alone does
                    the required files).                     not install all of the required files.
   
      release       Do a ``make distribution'', build kernels, distribution me-       sourcesets    Create source sets of the source tree into
                    dia, and install sets (this as per ``make sets''), and then                     RELEASEDIR/source/sets.
                    package the system into a standard release layout as de-  
                    scribed by release(7).  This requires that RELEASEDIR be       syspkgs       Create syspkgs from DESTDIR into
                      RELEASEDIR/RELEASEMACHINEDIR/binary/syspkgs.  Should be run
                      after ``make distribution'', as ``make build'' alone does
                      not install all of the required files.
   
        release       Do a ``make distribution'', build kernels, distribution
                      media, and install sets (this as per ``make sets''), and
                      then package the system into a standard release layout as
                      described by release(7).  This requires that RELEASEDIR be
                    set (see above).                     set (see above).
   
        iso-image     Create a NetBSD installation CD-ROM image in the
                      RELEASEDIR/iso directory.  The CD-ROM file system will have
                      a layout as described in release(7).
   
                      For most machine types, the CD-ROM will be bootable, and
                      will automatically run the sysinst(8) menu-based installa-
                      tion program, which can be used to install or upgrade a
                      NetBSD system.  Bootable CD-ROMs also contain tools that
                      may be useful in repairing a damaged NetBSD installation.
   
                      Before ``make iso-image'' is attempted, RELEASEDIR must be
                      populated by ``make release'' or equivalent.
   
                      Note that other, smaller, CD-ROM images may be created in
                      the RELEASEDIR/RELEASEMACHINEDIR/installation/cdrom direc-
                      tory by ``make release''.  These smaller images usually
                      contain the same tools as the larger images in
                      RELEASEDIR/iso, but do not contain additional content such
                      as the distribution sets.
   
                      Note that the mac68k port still uses an older method of
                      creating CD-ROM images.  This requires the mkisofs(1) util-
                      ity, which is not part of NetBSD, but which can be
                      installed from pkgsrc/sysutils/cdrtools.
   
        iso-image-source
                      Create a NetBSD installation CD-ROM image in the
                      RELEASEDIR/iso directory.  The CD-ROM file system will have
                      a layout as described in release(7).  It will have top
                      level directories for the machine type and source.
   
                      For most machine types, the CD-ROM will be bootable, and
                      will automatically run the sysinst(8) menu-based installa-
                      tion program, which can be used to install or upgrade a
                      NetBSD system.  Bootable CD-ROMs also contain tools that
                      may be useful in repairing a damaged NetBSD installation.
   
                      Before ``make iso-image-source'' is attempted, RELEASEDIR
                      must be populated by ``make sourcesets release'' or equiva-
                      lent.
   
                      Note that other, smaller, CD-ROM images may be created in
                      the RELEASEDIR/RELEASEMACHINEDIR/installation/cdrom direc-
                      tory by ``make release''.  These smaller images usually
                      contain the same tools as the larger images in
                      RELEASEDIR/iso, but do not contain additional content such
                      as the distribution sets.
   
                      Note that the mac68k port still uses an older method of
                      creating CD-ROM images.  This requires the mkisofs(1) util-
                      ity, which is not part of NetBSD, but which can be
                      installed from pkgsrc/sysutils/cdrtools.
   
        install-image
                      Create a bootable NetBSD installation disk image in the
                      RELEASEDIR/RELEASEMACHINEDIR/installation/installimage
                      directory.  The installation disk image is suitable for
                      copying to bootable USB flash memory sticks, etc., for
                      machines which are able to boot from such devices.  The
                      file system in the bootable disk image will have a layout
                      as described in release(7).
   
                      The installation image is bootable, and will automatically
                      run the sysinst(8) menu-based installation program, which
                      can be used to install or upgrade a NetBSD system.  The
                      image also contains tools that may be useful in repairing a
                      damaged NetBSD installation.
   
                      Before ``make install-image'' is attempted, RELEASEDIR must
                      be populated by ``make release'' or equivalent.  The build
                      must have been performed with MKUNPRIVED=yes because ``make
                      install-image'' relies on information in DESTDIR/METALOG.
   
        live-image    Create NetBSD live images in the
                      RELEASEDIR/RELEASEMACHINEDIR/installation/liveimage direc-
                      tory.  The live image contains all necessary files to boot
                      NetBSD up to multi-user mode, including all files which
                      should be extracted during installation, NetBSD disklabel,
                      bootloaders, etc.
   
                      The live image is suitable for use as a disk image in vir-
                      tual machine environments such as QEMU, and also useful to
                      boot NetBSD from a USB flash memory stick on a real
                      machine, without the need for installation.
   
                      Before ``make live-image'' is attempted, RELEASEDIR must be
                      populated by ``make release'' or equivalent.  The build
                      must have been performed with MKUNPRIVED=yes because ``make
                      install-image'' relies on information in DESTDIR/METALOG.
   
      regression-tests       regression-tests
                    Can only be run after building the regression tests in the                     Can only be run after building the regression tests in the
                    directory ``regress''.  Runs the compiled regression tests                     directory ``regress''.  Runs those compiled regression
                    on the local host.                     tests on the local host.  Note that most tests are now man-
                      aged instead using atf(7); this target should probably run
                      those as well but currently does not.
   
    The "build.sh" script     The "build.sh" script
      This script file is a Bourne shell script designed to build the entire       This script file is a shell script designed to build the entire NetBSD
      NetBSD system on any host with a Bourne shell in /bin/sh, including many       system on any host with a suitable modern shell and some common utili-
      that are not POSIX compliant.  Note that if a host system's /bin/sh is       ties.  The required shell features are described under the HOST_SH vari-
      unusually old and broken, the Korn Shell (/bin/ksh), if available, may be       able.
      a usable alternative.  
        If a host system's default shell does support the required features, then
        we suggest that you explicitly specify a suitable shell using a command
        like
   
              /path/to/suitable/shell build.sh [options]
   
        The above command will usually enable build.sh to automatically set
        HOST_SH=/path/to/suitable/shell, but if that fails, then the following
        set of commands may be used instead:
   
              HOST_SH=/path/to/suitable/shell
              export HOST_SH
              ${HOST_SH} build.sh [options]
   
        If build.sh detects that it is being executed under an unsuitable shell,
        it attempts to exec a suitable shell instead, or prints an error message.
        If HOST_SH is not set explicitly, then build.sh sets a default using
        heuristics dependent on the host platform, or from the shell under which
        build.sh is executed (if that can be determined), or using the first copy
        of sh found in PATH.
   
      All cross-compile builds, and most native builds, of the entire system       All cross-compile builds, and most native builds, of the entire system
      should make use of build.sh rather than just running ``make''.  This way,       should make use of build.sh rather than just running ``make''.  This way,
Line 460  BUILDING
Line 715  BUILDING
   
      The following operations are supported by build.sh:       The following operations are supported by build.sh:
   
      build         Build the system as per ``make build''.  This option im-       build         Build the system as per ``make build''.  Before the main
                    plies the obj and tools operations.                     part of the build commences, this command runs the obj
                      operation (unless the -o option is given), ``make
                      cleandir'' (unless the -u option is given), and the tools
                      operation.
   
      distribution  Build a full distribution as per ``make distribution''.       distribution  Build a full distribution as per ``make distribution''.
                    This option implies the build operation.                     This command first runs the build operation.
   
      release       Build a full release as per ``make release''.  This option       release       Build a full release as per ``make release''.  This command
                    implies the distribution operation.                     first runs the distribution operation.
   
      makewrapper   Create the nbmake-MACHINE wrapper.  This operation is auto-       makewrapper   Create the nbmake-MACHINE wrapper.  This operation is auto-
                    matically performed for any of the other operations.                     matically performed for any of the other operations.
   
        cleandir      Perform ``make cleandir''.
   
      obj           Perform ``make obj''.       obj           Perform ``make obj''.
   
      tools         Build and install the host tools from src/tools.       tools         Build and install the host tools from src/tools.  This com-
                      mand will first run ``make obj'' and ``make cleandir'' in
                      the tools subdirectory unless the -o or -u options (respec-
                      tively) are given.
   
        install=idir  Install the contents of DESTDIR to idir, using ``make
                      installworld''.  Note that files that are part of the
                      ``etc'' or ``xetc'' sets will not be installed, unless
                      overridden by the INSTALLSETS environment variable.
   
      kernel=kconf  Build a new kernel.  The kconf argument is the name of a       kernel=kconf  Build a new kernel.  The kconf argument is the name of a
                    configuration file suitable for use by config(8).  If kconf                     configuration file suitable for use by config(1).  If kconf
                    does not contain any `/' characters, the configuration file                     does not contain any `/' characters, the configuration file
                    is expected to be found in the KERNCONFDIR directory, which                     is expected to be found in the KERNCONFDIR directory, which
                    is typically sys/arch/MACHINE/conf.  The new kernel will be                     is typically sys/arch/MACHINE/conf.  The new kernel will be
                    built in a subdirectory of KERNOBJDIR, which is typically                     built in a subdirectory of KERNOBJDIR, which is typically
                    sys/arch/MACHINE/compile or an associated object directory.                     sys/arch/MACHINE/compile or an associated object directory.
                    In order to ensure that the kernel is built using up-to-  
                    date tools, it is strongly recommended that the tools be  
                    rebuilt (using the tools operation).  
   
      install=idir  Install the contents of DESTDIR to idir, using ``make                     This command does not imply the tools command; run the
                    installworld''.                     tools command first unless it is certain that the tools
                      already exist and are up to date.
   
                      This command will run ``make cleandir'' on the kernel in
                      question first unless the -u option is given.
   
        modules       This command will build kernel modules and install them
                      into DESTDIR.
   
        releasekernel=kconf
                      Install a gzip(1)ed copy of the kernel previously built by
                      kernel=kconf into
                      RELEASEDIR/RELEASEMACHINEDIR/binary/kernel, usually as
                      netbsd-kconf.gz, although the ``netbsd'' prefix is deter-
                      mined from the ``config'' directives in kconf.
   
      sets          Perform ``make sets''.       sets          Perform ``make sets''.
   
      The following command line options alter the behaviour of the above oper-       sourcesets    Perform ``make sourcesets''.
      ations: The following command line options alter the behaviour of the  
      build.sh operations described above:       syspkgs       Perform ``make syspkgs''.
   
        iso-image     Perform ``make iso-image''.
   
        iso-image-source
                      Perform ``make iso-image-source''.
   
        install-image
                      Perform ``make install-image''.
   
        live-image    Perform ``make live-image''.
   
        The following command line options alter the behaviour of the build.sh
        operations described above:
   
      -a arch   Set the value of MACHINE_ARCH to arch.       -a arch   Set the value of MACHINE_ARCH to arch.
   
      -B buildid       -B buildid
                Set the value of BUILDID to buildid.  This will also append the                 Set the value of BUILDID to buildid.  This will also append the
                build idenfitier to the name of the ``make'' wrapper script so                 build identifier to the name of the ``make'' wrapper script so
                that the resulting name is of the form ``nbmake-MACHINE-                 that the resulting name is of the form
                BUILDID''.                 ``nbmake-MACHINE-BUILDID''.
   
      -D dest   Set the value of DESTDIR to dest.       -C cdextras
                  Append cdextras to the CDEXTRA variable, which is a space-sepa-
                  rated list of files or directories that will be added to the
                  CD-ROM image that may be create by the ``iso-image'' or
                  ``iso-image-source'' operations.  Files will be added to the
                  root of the CD-ROM image, whereas directories will be copied
                  recursively.  If relative paths are specified, they will be
                  converted to absolute paths before being used.  Multiple paths
                  may be specified via multiple -C options, or via a single
                  option whose argument contains multiple space-separated paths.
   
        -D dest   Set the value of DESTDIR to dest.  If a relative path is speci-
                  fied, it will be converted to an absolute path before being
                  used.
   
      -E        Set `expert' mode.  This overrides various sanity checks, and       -E        Set `expert' mode.  This overrides various sanity checks, and
                allows: DESTDIR does not have to be set to a non-root path for                 allows: DESTDIR does not have to be set to a non-root path for
                builds, and UNPRIVED does not have to be set when building as a                 builds, and MKUNPRIVED=yes does not have to be set when build-
                non-root user.                 ing as a non-root user.
   
                Note: It is highly recommended that you know what you are doing                 Note: It is highly recommended that you know what you are doing
                when you use this option.                 when you use this option.
   
      -j njob   Passed through to make(1).  Makefiles should use .WAIT or have       -h        Print a help message.
                explicit dependancies as necessary to enforce build ordering.  
                If you see build failures with -j, please save complete build       -j njob   Run up to njob make(1) subjobs in parallel; passed through to
                logs so the failures can be analyzed.                 make(1).  If you see failures for reasons other than running
                  out of memory while using build.sh with -j, please save com-
      -M obj    Set MAKEOBJDIRPREFIX to obj.                 plete build logs so the failures can be analyzed.
   
      -m mach   Set the value of MACHINE to mach.  This will also override any                 To achieve the fastest builds, -j values between (1 + the num-
                value of MACHINE_ARCH in the process environment with a value                 ber of CPUs) and (2 * the number of CPUs) are recommended.  Use
                deduced from mach, unless -a is specified.  All cross builds                 lower values on machines with limited memory or I/O bandwidth.
                require -m, but if unset on a NetBSD host, the host's value of  
                MACHINE will be detected and used automatically.       -M obj    Set MAKEOBJDIRPREFIX to obj.  Unsets MAKEOBJDIR.  See ``-O
                  -obj'' for more information.
   
                  For instance, if the source directory is /usr/src, a setting of
                  ``-M /usr/obj'' will place build-time files under
                  /usr/obj/usr/src/bin, /usr/obj/usr/src/lib,
                  /usr/obj/usr/src/usr.bin, and so forth.
   
                  If a relative path is specified, it will be converted to an
                  absolute path before being used.  build.sh imposes the restric-
                  tion that the argument to the -M option must not begin with a
                  ``$'' (dollar sign) character; otherwise it would be too diffi-
                  cult to determine whether the value is an absolute or a rela-
                  tive path.  If the directory does not already exist, build.sh
                  will create it.
   
        -m mach   Set the value of MACHINE to mach, except in some special cases
                  listed below.  This will also override any value of
                  MACHINE_ARCH in the process environment with a value deduced
                  from mach, unless -a is specified.  All cross builds require
                  -m, but if unset on a NetBSD host, the host's value of MACHINE
                  will be detected and used automatically.
   
                  Some machines support multiple values for MACHINE_ARCH.  The
                  following special cases for the mach argument are defined to
                  set the listed values of MACHINE and MACHINE_ARCH:
   
                        mach          MACHINE    MACHINE_ARCH
                        evbarm        evbarm     (not set)
                        evbarm-eb     evbarm     armeb
                        evbarm-el     evbarm     arm
                        evbmips       evbmips    (not set)
                        evbmips-eb    evbmips    mipseb
                        evbmips-el    evbmips    mipsel
                        evbsh3        evbsh3     (not set)
                        evbsh3-eb     evbsh3     sh3eb
                        evbsh3-el     evbsh3     sh3el
                        sbmips        sbmips     (not set)
                        sbmips-eb     sbmips     mipseb
                        sbmips-el     sbmips     mipsel
   
        -N noiselevel
                  Set the ``noisyness'' level of the build, by setting
                  MAKEVERBOSE to noiselevel.
   
      -n        Show the commands that would be executed by build.sh, but do       -n        Show the commands that would be executed by build.sh, but do
                not make any changes.  This is similar in concept to ``make                 not make any changes.  This is similar in concept to ``make
                -n''.                 -n''.
   
      -O obj    Create an appropriate transform macro for MAKEOBJDIR that will       -O obj    Create an appropriate transform macro for MAKEOBJDIR that will
                place the built object files under obj.  For instance, a set-                 place the built object files under obj.  Unsets
                ting of /usr/obj will place build-time files under                 MAKEOBJDIRPREFIX.
                /usr/obj/bin, /usr/obj/lib, and so forth.  
   
      -o        Set the value of MKOBJDIRS to ``no''.                 For instance, a setting of ``-O /usr/obj'' will place build-
                  time files under /usr/obj/bin, /usr/obj/lib, /usr/obj/usr.bin,
      -R rel    Set the value of RELEASEDIR to rel.                 and so forth.
   
                  If a relative path is specified, it will be converted to an
                  absolute path before being used.  build.sh imposes the restric-
                  tion that the argument to the -O option must not contain a
                  ``$'' (dollar sign) character.  If the directory does not
                  already exist, build.sh will create it.
   
                  In normal use, exactly one of the -M or -O options should be
                  specified.  If neither -M nor -O is specified, then a default
                  object directory will be chosen according to rules in
                  <bsd.obj.mk>.  Relying on this default is not recommended
                  because it is determined by complex rules that are influenced
                  by the values of several variables and by the location of the
                  source directory.
   
        -o        Set the value of MKOBJDIRS to ``no''.  Otherwise, it will be
                  automatically set to ``yes''.  This default is opposite to the
                  behaviour when not using build.sh.
   
        -R rel    Set the value of RELEASEDIR to rel.  If a relative path is
                  specified, it will be converted to an absolute path before
                  being used.
   
      -r        Remove the contents of DESTDIR and TOOLDIR before building       -r        Remove the contents of DESTDIR and TOOLDIR before building
                (provides a clean starting point).  This will skip deleting                 (provides a clean starting point).  This will skip deleting
                DESTDIR if building on a native system to the root directory.                 DESTDIR if building on a native system to the root directory.
   
      -T tools  Set the value of TOOLDIR to tools.  If set, the bootstrap       -S seed   Change the value of BUILDSEED to seed.  This should rarely be
                ``make'' will only be rebuilt as needed (when the source files                 necessary.
                for make(1) change).  
        -T tools  Set the value of TOOLDIR to tools.  If a relative path is spec-
                  ified, it will be converted to an absolute path before being
                  used.  If set, the bootstrap ``make'' will only be rebuilt if
                  the source files for make(1) have changed.
   
      -U        Set the UNPRIVED variable.       -U        Set MKUNPRIVED=yes.
   
      -u        Set the UPDATE variable.       -u        Set MKUPDATE=yes.
   
      -V var=[value]       -V var=[value]
                Set the variable var to value (which is optional).                 Set the environment variable var to an optional value.  This is
                  propagated to the nbmake wrapper.
   
      -w wrapper       -w wrapper
                Create the nbmake wrapper script (see below) in a custom loca-                 Create the nbmake wrapper script (see below) in a custom loca-
                tion, specified by wrapper.  This allows, for instance, to                 tion, specified by wrapper.  This allows, for instance, to
                place the wrapper in PATH automatically.  Note that wrapper is                 place the wrapper in PATH automatically.  Note that wrapper is
                the full name of the file, not just a directory name.                 the full name of the file, not just a directory name.  If a
                  relative path is specified, it will be converted to an absolute
                  path before being used.
   
        -X x11src
                  Set the value of X11SRCDIR to x11src.  If a relative path is
                  specified, it will be converted to an absolute path before
                  being used.
   
        -x        Set MKX11=yes.
   
        -Z var    Unset ("zap") the environment variable var.  This is propagated
                  to the nbmake wrapper.
   
    The "nbmake-MACHINE" wrapper script     The "nbmake-MACHINE" wrapper script
      If using the build.sh script to build NetBSD, a nbmake-MACHINE script       If using the build.sh script to build NetBSD, a nbmake-MACHINE script
Line 569  BUILDING
Line 955  BUILDING
      nbmake-MACHINE can be invoked in lieu of make(1), and will instead call       nbmake-MACHINE can be invoked in lieu of make(1), and will instead call
      the up-to-date version of ``nbmake'' installed into TOOLDIR/bin with sev-       the up-to-date version of ``nbmake'' installed into TOOLDIR/bin with sev-
      eral key variables pre-set, including MACHINE, MACHINE_ARCH, and TOOLDIR.       eral key variables pre-set, including MACHINE, MACHINE_ARCH, and TOOLDIR.
        nbmake-MACHINE will also set variables specified with -V, and unset vari-
        ables specified with -Z.
   
      This script can be symlinked into a directory listed in PATH, or called       This script can be symlinked into a directory listed in PATH, or called
      with an absolute path.       with an absolute path.
   
 EXAMPLES  EXAMPLES
      1.   ./build.sh tools kernel=GENERIC       1.   % ./build.sh [options] tools kernel=GENERIC
   
           Build a new toolchain, and use the new toolchain to configure and            Build a new toolchain, and use the new toolchain to configure and
           build a new GENERIC kernel.            build a new GENERIC kernel.
   
      2.   ./build.sh -U -D /path/to/destdir distribution       2.   % ./build.sh [options] -U distribution
   
           Using unprivileged mode, build a complete distribution in            Using unprivileged mode, build a complete distribution to a DESTDIR
           /path/to/destdir.            directory that build.sh selects (and will display).
   
      3.   # ./build.sh -U -D /path/to/destdir installworld=/       3.   # ./build.sh [options] -U install=/
   
           As root, install the distribution that was built by example 2 into            As root, install to / the distribution that was built by example 2.
           /path/to/destdir to /.  Even though this is run as root, -U is re-            Even though this is run as root, -U is required so that the permis-
           quired so that the permissions stored in /path/to/destdir/METALOG            sions stored in DESTDIR/METALOG are correctly applied to the files
           are correctly applied to the files as they're copied to /.            as they're copied to /.
   
      4.   ./build.sh -U -u -D /path/to/destdir -R /path/to/releasedir release       4.   % ./build.sh [options] -U -u release
   
           Using unprivileged mode, build a complete release in            Using unprivileged mode, build a complete release to DESTDIR and
           /path/to/dir/releasedir.  UPDATE (-u) is set to prevent the ``make            RELEASEDIR directories that build.sh selects (and will display).
           cleandir'', so that if this is run after example 2, it doesn't need            MKUPDATE=yes (-u) is set to prevent the ``make cleandir'', so that
           to redo that portion of the release build.            if this is run after example 2, it doesn't need to redo that portion
             of the release build.
   
 OBSOLETE VARIABLES  OBSOLETE VARIABLES
      NBUILDJOBS  Use the make(1) option -j, instead.       NBUILDJOBS  Use the make(1) option -j instead.
   
      USE_NEW_TOOLCHAIN       USE_NEW_TOOLCHAIN
                  The new toolchain is now the default.  To disable, use                   The new toolchain is now the default.  To disable, use
                  TOOLCHAIN_MISSING=yes.                   TOOLCHAIN_MISSING=yes.
   
 SEE ALSO  SEE ALSO
      make(1), hier(7), release(7)       make(1), hier(7), release(7), etcupdate(8), postinstall(8), sysinst(8),
        pkgsrc/sysutils/cdrtools
   
 HISTORY  HISTORY
      The build.sh based build scheme was introduced for NetBSD 1.6 as       The build.sh based build scheme was introduced for NetBSD 1.6 as
      USE_NEW_TOOLCHAIN, and re-worked to TOOLCHAIN_MISSING after that.       USE_NEW_TOOLCHAIN, and re-worked to TOOLCHAIN_MISSING after that.
   
 BUGS  NetBSD                        September 19, 2012                        NetBSD
      A few platforms are not yet using this build system.  
   
 NetBSD                         February 2, 2003                             10  

Legend:
Removed from v.1.28  
changed lines
  Added in v.1.102

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