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Annotation of src/UPDATING, Revision 1.112

1.112   ! keihan      1: $NetBSD: UPDATING,v 1.111 2004/03/14 21:08:10 simonb Exp $
1.1       abs         2:
                      3: This file is intended to be a brief introduction to the build
                      4: process and a reference on what to do if something doesn't work.
                      5:
                      6: For a more detailed description see Makefile.
                      7:
                      8: Recent changes:
                      9: ^^^^^^^^^^^^^^^
1.99      mrg        10:
1.108     bjh21      11: 20040313:
                     12:        On acorn32, the opms and qms drivers have been withdrawn, and
                     13:        the old wsqms driver is now called qms.  Kernel config files
                     14:        will need updating.  See the ones in sys/arch/acorn32/conf
                     15:        for examples.
                     16:
1.106     bjh21      17: 20040125:
                     18:        On acorn32, the beep and sysbeep devices are no longer
                     19:        needed, and will need to be deleted from kernel configuration
                     20:        files.
1.105     bjh21      21:
1.102     dbj        22: 20040109:
                     23:        Compatibility for old ffs superblock layouts has been
                     24:        added, and the restrictive fsck checks have been reenabled
                     25:        when using those layouts.  If you have been using -current
                     26:        since 20030402, you may find that fsck again signals fatal
1.110     dbj        27:        superblock mismatches.  To repair, make sure you have
1.111     simonb     28:        an updated fsck_ffs and then you can use fsck_ffs -b 16 -c 4
1.109     dbj        29:        to complete the filesystem upgrade.  A message has
1.111     simonb     30:        been added to the kernel which should detect this problem.
                     31:        See the following discussion for more information:
1.112   ! keihan     32:        http://mail-index.NetBSD.org/current-users/2004/01/11/0022.html
1.102     dbj        33:
1.99      mrg        34: 20031203:
1.100     keihan     35:        New binutils builds may fail due to old dependencies.
1.99      mrg        36:        It's necessary to "make cleandir" to ensure that
                     37:        the dependencies will be rebuilt correctly.
1.98      wiz        38:
                     39: 20031111:
                     40:        A newer mkdep is needed.  Error noting that is
                     41:                cc: Ambiguous abbreviation --
1.97      lukem      42:
                     43: 20031008:
                     44:        /usr/include/sys/disklabel_mbr.h was removed.
                     45:        It's necessary to "make cleandir" to ensure that
                     46:        the dependencies will be rebuilt correctly.
1.96      christos   47:
1.109     dbj        48: 20031007:
1.111     simonb     49:        A sign exension bug was fixed which set all the high bits
                     50:        of our newly expanded ffs fs_flags.  This should only
                     51:        affect users who installed or upgraded in September of 2003.
1.109     dbj        52:        A small utility program was posted to tech-kern which
1.111     simonb     53:        should fix this problem, and a warning message was added
                     54:        to the kernel which should discover and warn about it.  See
                     55:        http://mail-index.NetBSD.org/tech-kern/2003/10/07/0005.html
1.109     dbj        56:
1.96      christos   57: 20030906:
                     58:        With the addition of siginfo support the old signal trampoline
                     59:        code has been deprecated to COMPAT_16. Make sure that your running
                     60:        kernel has COMPAT_16 enabled before building userland.
1.94      christos   61:
                     62: 20030801:
1.95      wiz        63:        With the new openssl, there is some header and library shuffling.
1.94      christos   64:        rm -f /usr/include/des.h /usr/include/kerberosIV/* /lib/libdes* \
1.95      wiz        65:        /usr/lib/libdes* before building.
1.92      wiz        66:
                     67: 20030703:
                     68:        Texinfo was updated to 4.6.  To avoid failures when trying to
                     69:        build the included texinfo files, do:
                     70:
                     71:        cd src/gnu/usr.bin/texinfo
                     72:        make MKINFO=no dependall install
1.90      wiz        73:
                     74: 20030630:
1.101     junyoung   75:        Groff was updated to 1.19; it's probably necessary to do
1.91      wiz        76:                cd share/mk && make install
1.90      wiz        77:                cd src/gnu/usr.bin/groff
                     78:                make MKMAN=no dependall install
                     79:        (untested).
1.89      christos   80:
                     81: 20030516:
                     82:        Due to bugs in the export handling code, invalid export lines
                     83:        were accepted before and caused the kernel to panic when
                     84:        mountd got restarted because it freed memory that had already
                     85:        been freed. This has been fixed and the kernel checks
                     86:        export addresses very strictly. If you upgrade your kernel,
                     87:        make sure you also upgrade mountd, because if your export
                     88:        file contains lines with an old inet4 address syntax (i.e.
                     89:        a.b.c or a.b or a), they will get rejected by the new kernel.
1.87      bjh21      90:
                     91: 20030402:
                     92:        The superblock layout for FFS was changed.  If you have 1.6
                     93:        fsck binaries, they will signal a fatal superblock mismatch
                     94:        with the first alternate, because they compare too many
                     95:        fields (even ones that aren't useful).  If possible, upgrade
                     96:        your fsck_ffs binary before using a new kernel.
                     97:        None of this signals actual filesystem damage.
1.85      atatat     98:
                     99: 20030324:
                    100:        sendmail version 8.12.8 was imported.  Since sendmail is
                    101:        now setgid to the smmsp group, and runs in "collection"
                    102:        mode for most common activities, there is a new config
                    103:        file called submit.cf that needs to live in /etc/mail.
                    104:        The generic submit.cf sample in /usr/share/sendmail/cf
                    105:        is named netbsd-msp.cf.  Upgrading your regular sendmail
                    106:        configuration file is also strongly advised.
                    107:
                    108:        See the section named "MESSAGE SUBMISSION PROGRAM" in
                    109:        the updated /usr/share/sendmail/README file for more
                    110:        information.
1.82      wiz       111:
                    112: 20030117:
                    113:        Texinfo was updated to 4.3.  To avoid failures when trying to
                    114:        build the included texinfo files, do:
                    115:
                    116:        cd src/gnu/usr.bin/texinfo
                    117:        make MKINFO=no dependall install
1.81      lukem     118:
                    119: 20021223:
                    120:        The METALOG format changed slightly, to remove the leading
                    121:        "${DESTDIR}" from path names.
                    122:        This only affects people building with UNPRIVED.
                    123:        For complete safety, remove the DESTDIR entirely and
                    124:        update tools/mtree, before running make build.
1.88      itojun    125:
                    126: 20021219:
                    127:        CVS repository layout was changed.  See the following for details
                    128:        if you are using (anonymous) cvs to update your tree.
                    129:
1.93      salo      130:        http://mail-index.NetBSD.org/netbsd-announce/2002/12/19/0000.html
1.80      lukem     131:
                    132: 20021219:
                    133:        install(1) had a '-N dbdir' option added, to specify an
                    134:        alternate location to look up users & groups (instead
                    135:        of the host system passwd(5) and group(5) databases).
                    136:
                    137:        The build system was modified to take advantage of
                    138:        this option (using ${NETBSDSRCDIR}/etc), so if you
1.83      kei       139:        use USETOOLS==no, you may have to rebuild and
1.80      lukem     140:        reinstall usr.bin/xinstall first.
1.78      lukem     141:
                    142: 20021130:
                    143:        fparseln(3) moved from libutil to libc.
                    144:        If building to DESTDIR=/, reinstall the includes
                    145:        and rebuild libc:
                    146:                make includes
                    147:                make do-lib-libc
                    148:        If using build.sh, "cd tools/compat && make clean"
                    149:        before rebuilding the tools.
1.77      lukem     150:
                    151: 20021126:
                    152:        The mk.conf(5) variable SYS_INCLUDE has been deprecated,
                    153:        including the optional "SYS_INCLUDE=symlinks" support.
                    154:        All header files, including <sys/*.h> are copied into
                    155:        /usr/include.
1.76      thorpej   156:
                    157: 20021121:
                    158:        The C run-time support files crtbegin.o and crtend.o
                    159:        (and their companions crtbeginS.o and crtendS.o) were
                    160:        split up, with new crti.o and crtn.o files resulting.
                    161:        This means that libtool needs to be rebuilt once the
                    162:        new libraries are installed.  The process of rebuilding
                    163:        libtool will cause it to automatically notice the new
                    164:        required files, but it *must* be rebuilt in order to
                    165:        do this.
                    166:
                    167:        An out-of-date libtool will result in shared libraries
                    168:        which lack _init() and _fini() routines, which means that
                    169:        their global contructors/destructors will not be invoked.
1.75      thorpej   170:
                    171: 20021121:
                    172:        A bug related to how ARM ELF objects were tagged has been
                    173:        corrected.
                    174:
                    175:        NetBSD ARM ELF uses the soft-VFP floating point model by
                    176:        default.  However, the assembler lacked support for marking
                    177:        objects as using the VFP floating point format, and the
1.79      wiz       178:        compiler was not properly passing the flag indicating "soft-VFP"
1.75      thorpej   179:        to the assembler.
                    180:
                    181:        Unfortunately, this means that the linker will now consider
                    182:        old (i.e. not marked "softvfp") NetBSD ARM ELF objects to be
                    183:        incompatible with new (properly marked) objects.
                    184:
                    185:        The problem will only manifest itself if you attempt to compile
                    186:        a new program using the fixed toolchain, and link that program
                    187:        against old libraries which do not have the proper "softvfp"
                    188:        markings.  ALL OF YOUR EXISTING BINARIES AND SHARED LIBRARIES
                    189:        WILL CONTINUE TO WORK PROPERLY.
                    190:
                    191:        The only work-around for the problem is to recompile all of
                    192:        the libraries on the system.  The easiest way to do this for
1.79      wiz       193:        system libraries is to install a binary snapshot; they are
1.93      salo      194:        generally available on releng.NetBSD.org.  Any packages you
1.75      thorpej   195:        have installed which supply libraries will have to be recompiled
                    196:        if you wish to link new programs against those libraries.
                    197:
                    198:        If you have questions about this matter, please contact
1.93      salo      199:        port-arm@NetBSD.org.
1.73      provos    200:
                    201: 20021011:
                    202:        Systrace has been improved to support privilege elevation.
                    203:        Updating the kernel requires the userland part of systrace
1.79      wiz       204:        to be rebuilt.
1.72      thorpej   205:
                    206: 20021010:
                    207:        The config(8) grammar was changed to allow options to register
                    208:        dependencies on attributes, as well as other options.  Users
                    209:        must update and reinstall usr.sbin/config before building a new
                    210:        kernel.
1.70      thorpej   211:
                    212: 20021009:
                    213:        A new attribute dependency syntax was introduced to config(8),
                    214:        which is now used by the SCSI configuration description.  Users
1.71      wiz       215:        must update and reinstall usr.sbin/config before building a new
1.70      thorpej   216:        kernel.
1.69      thorpej   217:
                    218: 20021003:
                    219:        Several changes have been made to the autoconfiguration
                    220:        framework.  Users must update and reinstall usr.sbin/config
                    221:        before building a new kernel.
1.74      jschauma  222:
                    223: 20021001:
                    224:        The i386mp branch has been merged.  To compile a kernel, users
                    225:        will need to add the option 'cpu* at mainbus?' to their configuration
                    226:        file.  Multiprocessor kernels will need
                    227:        ioapic*         at mainbus? apid ?
                    228:        options         MULTIPROCESSOR
                    229:        options         COM_MPLOCK
1.68      lukem     230:
                    231: 20020922:
                    232:        MKDYNAMICROOT=yes enabled by default, which means that
                    233:        certain shared libraries are installed into /lib, the shared
                    234:        linker is installed into /libexec, and all programs in /bin
                    235:        and /sbin are dynamically linked.
                    236:        If you do not use "make build", you should ensure that
                    237:        you have the libraries and shared linker in the new locations,
                    238:        with:
                    239:                make do-lib-csu do-lib-libc do-lib do-gnu-lib do-ld.elf_so
1.67      lukem     240:
                    241: 20020917:
                    242:        USE_NEW_TOOLCHAIN has been replaced with:
                    243:            -   TOOLCHAIN_MISSING -- set to "yes" on platforms for which
                    244:                there is no working in-tree toolchain (hppa, ns32k, sh5,
                    245:                x86_64).
                    246:            -   EXTERNAL_TOOLCHAIN -- if defined by the user, points to the
1.79      wiz       247:                root of an external toolchain (e.g. /usr/local/gnu).  This
1.67      lukem     248:                enables the cross-build framework even for TOOLCHAIN_MISSING
                    249:                platforms.
1.66      gehenna   250:
                    251: 20020906:
                    252:        gehenna-devsw has been merged into the trunk. Need to update and
1.79      wiz       253:        reinstall usr.sbin/config before building the kernel.
1.65      lukem     254:
                    255: 20020822:
                    256:        Crunched rescue tools (contents of /bin and /sbin, plus others)
                    257:        are now provided in /rescue.
                    258:
                    259:        To ensure that these are built statically linked (no matter
                    260:        what the setting of LDSTATIC is), use a crunchgen(1) built
                    261:        from sources newer than 20020820 (see the next entry).
                    262:
                    263: 20020820:
                    264:        crunchgen(1) changed to ensure that the generated program
                    265:        is statically linked.
                    266:
                    267:        Solution: update and reinstall usr.bin/crunch
1.84      grant     268:
                    269: 20020605:
                    270:        smmsp user/group has been added for sendmail.
                    271:
                    272:        Add the following into /etc/group:
                    273:
                    274:        smmsp:*:17:
                    275:
                    276:        and the following to /etc/master.passwd (via vipw):
                    277:
                    278:        smmsp:*:17:17::0:0:Sendmail Message Submission Program:/nonexistent:/sbin/nologin
1.61      itojun    279:
                    280: 20020515:
                    281:        sshd user/group has been added.  Need to hand add this in, or sshd
                    282:        will not let you log in (with default, or UsePrivlegeSeparation=yes)
                    283:
                    284:        Add the following into /etc/group:
                    285:
                    286:        sshd:*:16:
                    287:
                    288:        and the following to /etc/master.passwd (via vipw):
                    289:
1.63      enami     290:        sshd:*:16:16::0:0:& pseudo-user:/var/chroot/sshd:/sbin/nologin
1.61      itojun    291:
1.79      wiz       292:        Also /var/chroot/sshd directory needs to be present (digged as part of
                    293:        the build process).
1.60      sommerfe  294:
                    295: 20020426:
                    296:        NBUILDJOBS obsoleted in favor of just using -j.
1.59      lukem     297:
                    298: 20020426:
                    299:        etc/postinstall added, which performs various checks for
                    300:        configuration file updates and changes, and can fix most of
                    301:        the problems identified.
                    302:        This should make it much easier to upgrade a system's
                    303:        configuration from earlier systems (as far back as NetBSD 1.5).
1.56      lukem     304:
                    305: 20020320:
1.79      wiz       306:        <bsd.lib.mk> needs a new install(1) for its "-a cmd" support.
                    307:        Build and install at usr.bin/xinstall before the build.
1.56      lukem     308:
1.55      itojun    309: 20020319:
1.79      wiz       310:        Raw IPv6 socket now makes strict checking for sa_family and sa_len
                    311:        on send(2) operation.  Be sure to have sbin/rtsol and usr.sbin/rtsold
1.55      itojun    312:        newer than November 2001 when you upgrade the kernel.
                    313:
1.54      itojun    314: 20020311:
                    315:        ssh configuration files were moved from /etc to /etc/ssh.  Beware
                    316:        if you restart your machine from remote.  Note that sshd.conf needs
                    317:        to be changed (due to the use of "/etc" inside).
                    318:
                    319: 20020223:
1.53      matt      320:        Users of the VAX port will need to rebuild and install gas
                    321:        so it deal with the now present register prefix used in all
                    322:        the VAX assembly files.
                    323:
1.50      itojun    324: 20020118:
                    325:        ntpd user/group has been added.  Need to hand add this in or builds
                    326:        will break as mtree aborts early.
                    327:
                    328:        Add the following into /etc/group:
                    329:
                    330:        ntpd:*:15:
                    331:
                    332:        and the following to /etc/master.passwd (via vipw):
                    333:
                    334:        ntpd:*:15:15::0:0:Ntpd pseudo-user:/var/chroot/ntpd:/sbin/nologin
                    335:
1.49      jmc       336: 20011207:
                    337:        If you're attempting to build a snapshot on sparc64 and are getting
                    338:        reloc errors from the toolchain groff binary this means your native
                    339:        toolchain has some broken C++ bits.
                    340:
                    341:        To fix:
                    342:
                    343:        Build a new toolchain (i.e. build.sh -t)
                    344:        Use the new toolchain to build and install natively (i.e. /usr/lib)
                    345:
                    346:        gnu/lib/libgcc
1.51      pooka     347:        gnu/lib/libstdc++
1.49      jmc       348:
                    349:        After this a snapshot will be able to be built.
                    350:
1.47      jmc       351: 20011201:
                    352:        In order for a sparc64 build to work you must have a working awk. If
                    353:        you've built and installed a system with the new toolchain up to this
1.52      wiz       354:        point you do not have a working awk as its ability to do floating
1.47      jmc       355:        point is broken.
                    356:
                    357:        To build:
                    358:
                    359:        remake and install gnu/lib/libgcc
                    360:        remake and install gnu/usr.bin/gawk into /usr/bin (make sure it links
1.48      jmc       361:        against the new libgcc.a)
1.47      jmc       362:
1.46      thorpej   363: 20011128:
                    364:        Kernel config information was changed to use defflag in
                    365:        the various "files" files.  Bug fixes to config(8) are
                    366:        required in order for this to work properly.  Make sure
                    367:        to build and install in usr.sbin/config before attempting
                    368:        to build a new kernel.
                    369:
1.45      yamt      370: 20011030:
                    371:        libc/locale/wcstod.c now needs new lint(1). Update lint(1)
                    372:        before building libc.
1.43      mason     373:
1.44      tv        374: 20011029:
                    375:        The new document BUILDING.mdoc (view with nroff | more, or
                    376:        see pre-generated .txt and .html versions) describes the build
                    377:        procedure in great detail.  BUILDING, and the USE_NEW_TOOLCHAIN
                    378:        build process, are intended in the long run to replace this
                    379:        manual update log.
                    380:
                    381:        Users building a USE_NEW_TOOLCHAIN system should read the
                    382:        BUILDING document for caveats.  Generally, BUILDING supersedes
                    383:        UPDATING for these systems, as tool updating is taken care of
                    384:        by the new build system.
1.42      perry     385:
                    386: 20011028:
                    387:        src/etc/Makefile now needs install to be able to handle
                    388:        symlinks that point to nowhere. A bug in install that
                    389:        prevented this was corrected.
                    390:
                    391:        Solution: update and reinstall usr.bin/xinstall
                    392:        Better Solution: Use the new toolchain and it will just work
                    393:        for you.
1.40      lukem     394:
                    395: 20011006:
                    396:        /etc/mtree/NetBSD.dist has been updated to take advantage of
                    397:        absolute path support added to mtree(8). Older mtree(8)s don't
                    398:        understand the format.
                    399:
                    400:        Solution: update and reinstall usr.sbin/mtree
1.39      jmc       401:
                    402: 20011004:
                    403:        Crunchgen has been updated to work via reach-over makefiles. Updating
                    404:        is suggested before running a snapshot build
1.36      tv        405:
1.35      thorpej   406: 20010915:
                    407:        The new "ubcperf" code committed by Chuck Silvers removed
                    408:        a header file, uvm/uvm_vnode.h.  There may be stale .depend
                    409:        files that still reference this file.
                    410:
                    411:        Solution: "make cleandir && make dependall" in affected
                    412:        directories.
1.31      enami     413:
                    414: 20010803:
                    415:        grep.info is now built from grep.texi using makeinfo.  Since it
                    416:        requires makeinfo v4.0, you need to install new texinfo before
                    417:        building gnu/usr.bin/grep.  To install new texinfo, please follow
                    418:        the instruction described in 20010726 entry.
1.30      enami     419:
1.64      sommerfe  420: 20010803:
1.41      wiz       421:        (i386 only): i386 kernel now uses new instructions like
1.111     simonb    422:        `fxsave' which old gas doesn't understand.  To build the
1.64      sommerfe  423:        kernel successfully, you need to build and install a new toolchain,
                    424:        (i.e., build.sh -t) or  (temporarily) comment out "options I686_CPU"
                    425:        from your kernel configuration until you rebuild your userland.
                    426:        See 20011029 above and BUILDING file in this directory for more information.
                    427:        [updated 20020630 since i386 gas moved when USE_NEW_TOOLCHAIN enabled]
1.29      bjh21     428:
                    429: 20010731:
                    430:        Bootloader update on ELF platforms.  DDB in kernels from before
                    431:        this will be unable to read symbol tables provided by newer
                    432:        bootloaders.
1.27      assar     433:
                    434: 20010726:
                    435:        Texinfo was updated to 4.0.  To avoid failures when trying to
1.28      assar     436:        build the included texinfo files, do:
                    437:
                    438:        cd src/gnu/usr.bin/texinfo
                    439:        make MKINFO=no dependall install
1.25      thorpej   440:
                    441: 20010718:
                    442:        Enabled correct .init/.fini processing in crt0.  The way this
                    443:        was done was to change a -I directive to cc(1), which means
                    444:        make(1) will have a stale dependency (it will be checking the
                    445:        timestamp on the wrong "dot_init.h").
                    446:
                    447:        The symptom you will see is that new programs die with SIGSEGV
                    448:        if you have a stale dependency.
                    449:
                    450:        Solution: "make cleandir" in both lib/csu and libexec/ld.elf_so
                    451:        before starting your build.
1.26      thorpej   452:
                    453: 20010628:
                    454:        A construct was added to uvm_page.h that uncovered a bug
                    455:        in lint(1).  If you get a warning/error about a non-portable
                    456:        bitfield, update your lint(1) before proceeding.
1.21      jmc       457:
                    458: 20010226:
1.22      jmc       459:        Added named user/group to system. Need to hand add this in or builds
1.21      jmc       460:        will break as mtree aborts early.
                    461:
                    462:        To work around add by hand:
                    463:
                    464:        named:*:14:
                    465:
1.22      jmc       466:        to /etc/group and add:
                    467:
                    468:        named:*:14:14::0:0:Named pseudo-user:/var/named:/sbin/nologin
                    469:
                    470:        to master.passwd (use vipw for instance if doing by hand).
                    471:
                    472:        Now a make build should progress.
1.18      jmc       473:
                    474: 20010219:
1.52      wiz       475:        get/setprogname() added. Any hostprogs that may use this will need
1.111     simonb    476:        to be bootstrapped manually until the host system is current.
1.18      jmc       477:
1.111     simonb    478:        Known problems: sys/arch/macppc/stand/fixcoff
1.19      cgd       479:                        usr.sbin/config (adding -DMAKE_BOOTSTRAP to
                    480:                          CFLAGS and rebuilding should work)
1.20      jmc       481:                        usr.sbin/mdsetimage - Build a static copy if
1.111     simonb    482:                          building a snapshot before fully bootstrapped.
1.15      christos  483:
                    484: 20010204:
                    485:        prepare the code to compile with stricter gcc flags. in
                    486:        particular start eliminating redundant declarations. Yacc
                    487:        needs to be installed before make build.
1.10      christos  488:
                    489: 20010114:
                    490:        introduce .if commands(target) in make(1). You need to
                    491:        bring everything up-to-date first, then without installing
1.23      tron      492:        anything make and install in usr.bin/make, then proceed
1.10      christos  493:        with make build.
1.9       sommerfe  494:
                    495: 20010101:
                    496:        bsd.subdir.mk committed 20001230 had a bug which caused
                    497:        afterinstall targets to run too soon; update again.
1.8       sommerfe  498:
                    499: 20001230:
                    500:        New share/mk files needed to support .WAIT in SUBDIR variables.
                    501:        If you get make errors,
                    502:                (cd share/mk; make install)
                    503:        Also, PRINTOBJDIR has changed and is now used more heavily.
1.6       ad        504:
                    505: 20001019:
1.7       ad        506:        The `ca' device driver has been replaced by `ld'; although the
1.6       ad        507:        major and minor numbers haven't changed, you should update your /dev
                    508:        directory.
1.1       abs       509:
1.4       itojun    510: 20000929:
                    511:        The following make directives are obsoleted.
                    512:        MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA
                    513:        By default, RSA is built into libcrypto.  IDEA and RC5 will not be
1.16      wiz       514:        built into libcrypto.  By using MKCRYPTO_{RC5,IDEA}, you can build
1.4       itojun    515:        additional library libcrypto_{idea,rc5}.
1.1       abs       516:
                    517:
                    518: Hints for a more successful build:
                    519: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.2       mrg       520:     Build a new kernel first:
                    521:        This makes sure that any new system calls or features
                    522:           expected by the new userland will be present.  This
                    523:           helps to avoid critical errors when upgrading.
1.1       abs       524:     Use object directories:
                    525:        This helps to keep stale object
                    526:           files from polluting the build if a Makefile "forgets"
                    527:           about one.  It also makes it easier to clean up after
                    528:           a build.  It's also necessary if you want to use the
                    529:           same source tree for multiple machines.
                    530:           To use object directories:
                    531:            a) cd /usr/src ; make cleandir
1.2       mrg       532:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    533:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       534:            d) cd /usr/src ; make build
1.2       mrg       535:           Note that running "make obj" in a directory will create
                    536:           in obj.$MACHINE directory.
1.1       abs       537:     Build to a DESTDIR:
                    538:        This helps to keep old
                    539:           installed files (especially libraries) from interfering
                    540:           with the new build.
                    541:           To build to a DESTDIR, set the DESTDIR environment
1.2       mrg       542:           variable before running make build.  It should be set to
                    543:           the pathname of an initially empty directory.
1.1       abs       544:           Problems: you might need to update critical utilities
                    545:                without using DESTDIR since nothing is executed
                    546:                from what is installed in DESTDIR.
                    547:                (See critical utils, below)
                    548:     Build often:
                    549:        This keeps critical utilities current enough to not choke
                    550:        on any other part of the source tree that depends on up to
                    551:        date functionality.
                    552:
                    553: What to do if things don't work:
                    554: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    555: When things don't work there is usually a few things that commonly
                    556: should be done.
                    557:     1) make includes
                    558:        This should be done automatically by make build.
                    559:     2)  cd share/mk && make install
                    560:        Again, automatically done by make build.
                    561:
                    562: Failsafe rebuild of a small part of the tree:
                    563: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    564: To make sure you rebuild something correctly you want to do
                    565: something like the following:
                    566:     1)  Make sure the includes and .mk files are up to date.
                    567:     2)  Make sure any program used to build the particular
                    568:        utility is up to date.  (yacc, lex, etc...)
                    569:     3)  cd ...path/to/util...
                    570:        make cleandir
                    571:        rm ...all obj directories...
                    572:        make cleandir                   # yes, again
                    573:        make obj
                    574:        make depend && make
                    575:
                    576: Failsafe rebuild of the entire tree:
                    577: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    578: If you really want to make sure the source tree is clean and
1.2       mrg       579: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    580: (a make(1) Makefile) in this manner is not right, and will not work
                    581: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       582:
                    583: ---cut here---
                    584: #!/bin/sh
                    585: . /etc/mk.conf
                    586:
1.58      lukem     587: if [ -z $NETBSDSRCDIR ] ; then
                    588:     NETBSDSRCDIR=/usr/src
1.1       abs       589: fi
1.58      lukem     590: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       591:     echo Unable to find sources
                    592:     exit 1
                    593: fi
1.58      lukem     594: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       595:
                    596: if [ -z $BSDOBJDIR ] ; then
                    597:     BSDOBJDIR=/usr/obj
                    598: fi
                    599: if [ -d $BSDOBJDIR ] ; then
                    600:     rm -rf $BSDOBJDIR
                    601: fi
                    602:
1.58      lukem     603: cd $NETBSDSRCDIR && make cleandir
1.1       abs       604:
                    605: ---cut here---
                    606:
                    607: Critical utilities:
                    608: ^^^^^^^^^^^^^^^^^^^
                    609:        gnu/usr.bin/egcs
1.3       itojun    610:        usr.bin/compile_et
1.1       abs       611:        usr.bin/make
                    612:        usr.bin/yacc
                    613:        usr.bin/lex
1.11      lukem     614:        usr.bin/xlint
1.2       mrg       615:        usr.sbin/config
1.1       abs       616:
1.34      simonb    617: Other problems and possible solutions:
1.1       abs       618: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    619: Symptom:Unreasonable compiler errors.
                    620: Fix:   Rebuild gnu/usr.bin/egcs
                    621:
                    622: Symptom:Complaints involving a Makefile.
1.17      erh       623: Fix:   Rebuild usr.bin/make:
                    624:        cd usr.bin/make && make && make install
1.111     simonb    625:        Or, a failsafe method if that doesn't work:
1.17      erh       626:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    627:
1.1       abs       628: Fix:   Make sure .mk files are up to date.
                    629:        cd share/mk && make install
1.2       mrg       630:
                    631: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
                    632: Fix:   Rebuild usr.sbin/config
1.1       abs       633:
                    634: Symptom:
                    635: Fix:   Rebuild usr.bin/yacc
                    636:
                    637: Symptom:
                    638: Fix:   Rebuild usr.bin/lex
                    639:
                    640: Symptom:
                    641: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    642:
                    643: Symptom:Obsolete intermediate files are used during compilation
                    644: Fix:   Try the following sequence of commands in the directory in question.
                    645:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    646:        (If you built the tree without "make obj" in the past, obsolete files
                    647:        may remain.  The command tries to clean everything up)
1.5       wiz       648:
                    649: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
                    650: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    651:
                    652: Symptom:mklocale not found during build in share/locale/ctype
                    653: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    654:
1.86      kleink    655: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    656: Fix:    Rebuild and install lib/libc
                    657:
1.19      cgd       658: Symptom:usr.sbin/config fails to build.
                    659: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    660:
1.19      cgd       661: Symptom:undefined reference to `getprogname' or `setprogname'
                    662: Fix:    Rebuild and install lib/libc
1.24      abs       663:
                    664: Symptom:lint does not understand the '-X' option
                    665: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint

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