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Annotation of src/UPDATING, Revision 1.98

1.98    ! wiz         1: $NetBSD: UPDATING,v 1.97 2003/10/08 04:25:43 lukem 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: ^^^^^^^^^^^^^^^
1.98    ! wiz        10:
        !            11: 20031111:
        !            12:        A newer mkdep is needed.  Error noting that is
        !            13:                cc: Ambiguous abbreviation --
1.97      lukem      14:
                     15: 20031008:
                     16:        /usr/include/sys/disklabel_mbr.h was removed.
                     17:        It's necessary to "make cleandir" to ensure that
                     18:        the dependencies will be rebuilt correctly.
1.96      christos   19:
                     20: 20030906:
                     21:        With the addition of siginfo support the old signal trampoline
                     22:        code has been deprecated to COMPAT_16. Make sure that your running
                     23:        kernel has COMPAT_16 enabled before building userland.
1.94      christos   24:
                     25: 20030801:
1.95      wiz        26:        With the new openssl, there is some header and library shuffling.
1.94      christos   27:        rm -f /usr/include/des.h /usr/include/kerberosIV/* /lib/libdes* \
1.95      wiz        28:        /usr/lib/libdes* before building.
1.92      wiz        29:
                     30: 20030703:
                     31:        Texinfo was updated to 4.6.  To avoid failures when trying to
                     32:        build the included texinfo files, do:
                     33:
                     34:        cd src/gnu/usr.bin/texinfo
                     35:        make MKINFO=no dependall install
1.90      wiz        36:
                     37: 20030630:
                     38:        Groff was update to 1.19; it's probably necessary to do
1.91      wiz        39:                cd share/mk && make install
1.90      wiz        40:                cd src/gnu/usr.bin/groff
                     41:                make MKMAN=no dependall install
                     42:        (untested).
1.89      christos   43:
                     44: 20030516:
                     45:        Due to bugs in the export handling code, invalid export lines
                     46:        were accepted before and caused the kernel to panic when
                     47:        mountd got restarted because it freed memory that had already
                     48:        been freed. This has been fixed and the kernel checks
                     49:        export addresses very strictly. If you upgrade your kernel,
                     50:        make sure you also upgrade mountd, because if your export
                     51:        file contains lines with an old inet4 address syntax (i.e.
                     52:        a.b.c or a.b or a), they will get rejected by the new kernel.
1.87      bjh21      53:
                     54: 20030402:
                     55:        The superblock layout for FFS was changed.  If you have 1.6
                     56:        fsck binaries, they will signal a fatal superblock mismatch
                     57:        with the first alternate, because they compare too many
                     58:        fields (even ones that aren't useful).  If possible, upgrade
                     59:        your fsck_ffs binary before using a new kernel.
                     60:        None of this signals actual filesystem damage.
1.85      atatat     61:
                     62: 20030324:
                     63:        sendmail version 8.12.8 was imported.  Since sendmail is
                     64:        now setgid to the smmsp group, and runs in "collection"
                     65:        mode for most common activities, there is a new config
                     66:        file called submit.cf that needs to live in /etc/mail.
                     67:        The generic submit.cf sample in /usr/share/sendmail/cf
                     68:        is named netbsd-msp.cf.  Upgrading your regular sendmail
                     69:        configuration file is also strongly advised.
                     70:
                     71:        See the section named "MESSAGE SUBMISSION PROGRAM" in
                     72:        the updated /usr/share/sendmail/README file for more
                     73:        information.
1.82      wiz        74:
                     75: 20030117:
                     76:        Texinfo was updated to 4.3.  To avoid failures when trying to
                     77:        build the included texinfo files, do:
                     78:
                     79:        cd src/gnu/usr.bin/texinfo
                     80:        make MKINFO=no dependall install
1.81      lukem      81:
                     82: 20021223:
                     83:        The METALOG format changed slightly, to remove the leading
                     84:        "${DESTDIR}" from path names.
                     85:        This only affects people building with UNPRIVED.
                     86:        For complete safety, remove the DESTDIR entirely and
                     87:        update tools/mtree, before running make build.
1.88      itojun     88:
                     89: 20021219:
                     90:        CVS repository layout was changed.  See the following for details
                     91:        if you are using (anonymous) cvs to update your tree.
                     92:
1.93      salo       93:        http://mail-index.NetBSD.org/netbsd-announce/2002/12/19/0000.html
1.80      lukem      94:
                     95: 20021219:
                     96:        install(1) had a '-N dbdir' option added, to specify an
                     97:        alternate location to look up users & groups (instead
                     98:        of the host system passwd(5) and group(5) databases).
                     99:
                    100:        The build system was modified to take advantage of
                    101:        this option (using ${NETBSDSRCDIR}/etc), so if you
1.83      kei       102:        use USETOOLS==no, you may have to rebuild and
1.80      lukem     103:        reinstall usr.bin/xinstall first.
1.78      lukem     104:
                    105: 20021130:
                    106:        fparseln(3) moved from libutil to libc.
                    107:        If building to DESTDIR=/, reinstall the includes
                    108:        and rebuild libc:
                    109:                make includes
                    110:                make do-lib-libc
                    111:        If using build.sh, "cd tools/compat && make clean"
                    112:        before rebuilding the tools.
1.77      lukem     113:
                    114: 20021126:
                    115:        The mk.conf(5) variable SYS_INCLUDE has been deprecated,
                    116:        including the optional "SYS_INCLUDE=symlinks" support.
                    117:        All header files, including <sys/*.h> are copied into
                    118:        /usr/include.
1.76      thorpej   119:
                    120: 20021121:
                    121:        The C run-time support files crtbegin.o and crtend.o
                    122:        (and their companions crtbeginS.o and crtendS.o) were
                    123:        split up, with new crti.o and crtn.o files resulting.
                    124:        This means that libtool needs to be rebuilt once the
                    125:        new libraries are installed.  The process of rebuilding
                    126:        libtool will cause it to automatically notice the new
                    127:        required files, but it *must* be rebuilt in order to
                    128:        do this.
                    129:
                    130:        An out-of-date libtool will result in shared libraries
                    131:        which lack _init() and _fini() routines, which means that
                    132:        their global contructors/destructors will not be invoked.
1.75      thorpej   133:
                    134: 20021121:
                    135:        A bug related to how ARM ELF objects were tagged has been
                    136:        corrected.
                    137:
                    138:        NetBSD ARM ELF uses the soft-VFP floating point model by
                    139:        default.  However, the assembler lacked support for marking
                    140:        objects as using the VFP floating point format, and the
1.79      wiz       141:        compiler was not properly passing the flag indicating "soft-VFP"
1.75      thorpej   142:        to the assembler.
                    143:
                    144:        Unfortunately, this means that the linker will now consider
                    145:        old (i.e. not marked "softvfp") NetBSD ARM ELF objects to be
                    146:        incompatible with new (properly marked) objects.
                    147:
                    148:        The problem will only manifest itself if you attempt to compile
                    149:        a new program using the fixed toolchain, and link that program
                    150:        against old libraries which do not have the proper "softvfp"
                    151:        markings.  ALL OF YOUR EXISTING BINARIES AND SHARED LIBRARIES
                    152:        WILL CONTINUE TO WORK PROPERLY.
                    153:
                    154:        The only work-around for the problem is to recompile all of
                    155:        the libraries on the system.  The easiest way to do this for
1.79      wiz       156:        system libraries is to install a binary snapshot; they are
1.93      salo      157:        generally available on releng.NetBSD.org.  Any packages you
1.75      thorpej   158:        have installed which supply libraries will have to be recompiled
                    159:        if you wish to link new programs against those libraries.
                    160:
                    161:        If you have questions about this matter, please contact
1.93      salo      162:        port-arm@NetBSD.org.
1.73      provos    163:
                    164: 20021011:
                    165:        Systrace has been improved to support privilege elevation.
                    166:        Updating the kernel requires the userland part of systrace
1.79      wiz       167:        to be rebuilt.
1.72      thorpej   168:
                    169: 20021010:
                    170:        The config(8) grammar was changed to allow options to register
                    171:        dependencies on attributes, as well as other options.  Users
                    172:        must update and reinstall usr.sbin/config before building a new
                    173:        kernel.
1.70      thorpej   174:
                    175: 20021009:
                    176:        A new attribute dependency syntax was introduced to config(8),
                    177:        which is now used by the SCSI configuration description.  Users
1.71      wiz       178:        must update and reinstall usr.sbin/config before building a new
1.70      thorpej   179:        kernel.
1.69      thorpej   180:
                    181: 20021003:
                    182:        Several changes have been made to the autoconfiguration
                    183:        framework.  Users must update and reinstall usr.sbin/config
                    184:        before building a new kernel.
1.74      jschauma  185:
                    186: 20021001:
                    187:        The i386mp branch has been merged.  To compile a kernel, users
                    188:        will need to add the option 'cpu* at mainbus?' to their configuration
                    189:        file.  Multiprocessor kernels will need
                    190:        ioapic*         at mainbus? apid ?
                    191:        options         MULTIPROCESSOR
                    192:        options         COM_MPLOCK
1.68      lukem     193:
                    194: 20020922:
                    195:        MKDYNAMICROOT=yes enabled by default, which means that
                    196:        certain shared libraries are installed into /lib, the shared
                    197:        linker is installed into /libexec, and all programs in /bin
                    198:        and /sbin are dynamically linked.
                    199:        If you do not use "make build", you should ensure that
                    200:        you have the libraries and shared linker in the new locations,
                    201:        with:
                    202:                make do-lib-csu do-lib-libc do-lib do-gnu-lib do-ld.elf_so
1.67      lukem     203:
                    204: 20020917:
                    205:        USE_NEW_TOOLCHAIN has been replaced with:
                    206:            -   TOOLCHAIN_MISSING -- set to "yes" on platforms for which
                    207:                there is no working in-tree toolchain (hppa, ns32k, sh5,
                    208:                x86_64).
                    209:            -   EXTERNAL_TOOLCHAIN -- if defined by the user, points to the
1.79      wiz       210:                root of an external toolchain (e.g. /usr/local/gnu).  This
1.67      lukem     211:                enables the cross-build framework even for TOOLCHAIN_MISSING
                    212:                platforms.
1.66      gehenna   213:
                    214: 20020906:
                    215:        gehenna-devsw has been merged into the trunk. Need to update and
1.79      wiz       216:        reinstall usr.sbin/config before building the kernel.
1.65      lukem     217:
                    218: 20020822:
                    219:        Crunched rescue tools (contents of /bin and /sbin, plus others)
                    220:        are now provided in /rescue.
                    221:
                    222:        To ensure that these are built statically linked (no matter
                    223:        what the setting of LDSTATIC is), use a crunchgen(1) built
                    224:        from sources newer than 20020820 (see the next entry).
                    225:
                    226: 20020820:
                    227:        crunchgen(1) changed to ensure that the generated program
                    228:        is statically linked.
                    229:
                    230:        Solution: update and reinstall usr.bin/crunch
1.84      grant     231:
                    232: 20020605:
                    233:        smmsp user/group has been added for sendmail.
                    234:
                    235:        Add the following into /etc/group:
                    236:
                    237:        smmsp:*:17:
                    238:
                    239:        and the following to /etc/master.passwd (via vipw):
                    240:
                    241:        smmsp:*:17:17::0:0:Sendmail Message Submission Program:/nonexistent:/sbin/nologin
1.61      itojun    242:
                    243: 20020515:
                    244:        sshd user/group has been added.  Need to hand add this in, or sshd
                    245:        will not let you log in (with default, or UsePrivlegeSeparation=yes)
                    246:
                    247:        Add the following into /etc/group:
                    248:
                    249:        sshd:*:16:
                    250:
                    251:        and the following to /etc/master.passwd (via vipw):
                    252:
1.63      enami     253:        sshd:*:16:16::0:0:& pseudo-user:/var/chroot/sshd:/sbin/nologin
1.61      itojun    254:
1.79      wiz       255:        Also /var/chroot/sshd directory needs to be present (digged as part of
                    256:        the build process).
1.60      sommerfe  257:
                    258: 20020426:
                    259:        NBUILDJOBS obsoleted in favor of just using -j.
1.59      lukem     260:
                    261: 20020426:
                    262:        etc/postinstall added, which performs various checks for
                    263:        configuration file updates and changes, and can fix most of
                    264:        the problems identified.
                    265:        This should make it much easier to upgrade a system's
                    266:        configuration from earlier systems (as far back as NetBSD 1.5).
1.56      lukem     267:
                    268: 20020320:
1.79      wiz       269:        <bsd.lib.mk> needs a new install(1) for its "-a cmd" support.
                    270:        Build and install at usr.bin/xinstall before the build.
1.56      lukem     271:
1.55      itojun    272: 20020319:
1.79      wiz       273:        Raw IPv6 socket now makes strict checking for sa_family and sa_len
                    274:        on send(2) operation.  Be sure to have sbin/rtsol and usr.sbin/rtsold
1.55      itojun    275:        newer than November 2001 when you upgrade the kernel.
                    276:
1.54      itojun    277: 20020311:
                    278:        ssh configuration files were moved from /etc to /etc/ssh.  Beware
                    279:        if you restart your machine from remote.  Note that sshd.conf needs
                    280:        to be changed (due to the use of "/etc" inside).
                    281:
                    282: 20020223:
1.53      matt      283:        Users of the VAX port will need to rebuild and install gas
                    284:        so it deal with the now present register prefix used in all
                    285:        the VAX assembly files.
                    286:
1.50      itojun    287: 20020118:
                    288:        ntpd user/group has been added.  Need to hand add this in or builds
                    289:        will break as mtree aborts early.
                    290:
                    291:        Add the following into /etc/group:
                    292:
                    293:        ntpd:*:15:
                    294:
                    295:        and the following to /etc/master.passwd (via vipw):
                    296:
                    297:        ntpd:*:15:15::0:0:Ntpd pseudo-user:/var/chroot/ntpd:/sbin/nologin
                    298:
1.49      jmc       299: 20011207:
                    300:        If you're attempting to build a snapshot on sparc64 and are getting
                    301:        reloc errors from the toolchain groff binary this means your native
                    302:        toolchain has some broken C++ bits.
                    303:
                    304:        To fix:
                    305:
                    306:        Build a new toolchain (i.e. build.sh -t)
                    307:        Use the new toolchain to build and install natively (i.e. /usr/lib)
                    308:
                    309:        gnu/lib/libgcc
1.51      pooka     310:        gnu/lib/libstdc++
1.49      jmc       311:
                    312:        After this a snapshot will be able to be built.
                    313:
1.47      jmc       314: 20011201:
                    315:        In order for a sparc64 build to work you must have a working awk. If
                    316:        you've built and installed a system with the new toolchain up to this
1.52      wiz       317:        point you do not have a working awk as its ability to do floating
1.47      jmc       318:        point is broken.
                    319:
                    320:        To build:
                    321:
                    322:        remake and install gnu/lib/libgcc
                    323:        remake and install gnu/usr.bin/gawk into /usr/bin (make sure it links
1.48      jmc       324:        against the new libgcc.a)
1.47      jmc       325:
1.46      thorpej   326: 20011128:
                    327:        Kernel config information was changed to use defflag in
                    328:        the various "files" files.  Bug fixes to config(8) are
                    329:        required in order for this to work properly.  Make sure
                    330:        to build and install in usr.sbin/config before attempting
                    331:        to build a new kernel.
                    332:
1.45      yamt      333: 20011030:
                    334:        libc/locale/wcstod.c now needs new lint(1). Update lint(1)
                    335:        before building libc.
1.43      mason     336:
1.44      tv        337: 20011029:
                    338:        The new document BUILDING.mdoc (view with nroff | more, or
                    339:        see pre-generated .txt and .html versions) describes the build
                    340:        procedure in great detail.  BUILDING, and the USE_NEW_TOOLCHAIN
                    341:        build process, are intended in the long run to replace this
                    342:        manual update log.
                    343:
                    344:        Users building a USE_NEW_TOOLCHAIN system should read the
                    345:        BUILDING document for caveats.  Generally, BUILDING supersedes
                    346:        UPDATING for these systems, as tool updating is taken care of
                    347:        by the new build system.
1.42      perry     348:
                    349: 20011028:
                    350:        src/etc/Makefile now needs install to be able to handle
                    351:        symlinks that point to nowhere. A bug in install that
                    352:        prevented this was corrected.
                    353:
                    354:        Solution: update and reinstall usr.bin/xinstall
                    355:        Better Solution: Use the new toolchain and it will just work
                    356:        for you.
1.40      lukem     357:
                    358: 20011006:
                    359:        /etc/mtree/NetBSD.dist has been updated to take advantage of
                    360:        absolute path support added to mtree(8). Older mtree(8)s don't
                    361:        understand the format.
                    362:
                    363:        Solution: update and reinstall usr.sbin/mtree
1.39      jmc       364:
                    365: 20011004:
                    366:        Crunchgen has been updated to work via reach-over makefiles. Updating
                    367:        is suggested before running a snapshot build
1.36      tv        368:
1.35      thorpej   369: 20010915:
                    370:        The new "ubcperf" code committed by Chuck Silvers removed
                    371:        a header file, uvm/uvm_vnode.h.  There may be stale .depend
                    372:        files that still reference this file.
                    373:
                    374:        Solution: "make cleandir && make dependall" in affected
                    375:        directories.
1.31      enami     376:
                    377: 20010803:
                    378:        grep.info is now built from grep.texi using makeinfo.  Since it
                    379:        requires makeinfo v4.0, you need to install new texinfo before
                    380:        building gnu/usr.bin/grep.  To install new texinfo, please follow
                    381:        the instruction described in 20010726 entry.
1.30      enami     382:
1.64      sommerfe  383: 20010803:
1.41      wiz       384:        (i386 only): i386 kernel now uses new instructions like
                    385:         `fxsave' which old gas doesn't understand.  To build the
1.64      sommerfe  386:        kernel successfully, you need to build and install a new toolchain,
                    387:        (i.e., build.sh -t) or  (temporarily) comment out "options I686_CPU"
                    388:        from your kernel configuration until you rebuild your userland.
                    389:        See 20011029 above and BUILDING file in this directory for more information.
                    390:        [updated 20020630 since i386 gas moved when USE_NEW_TOOLCHAIN enabled]
1.29      bjh21     391:
                    392: 20010731:
                    393:        Bootloader update on ELF platforms.  DDB in kernels from before
                    394:        this will be unable to read symbol tables provided by newer
                    395:        bootloaders.
1.27      assar     396:
                    397: 20010726:
                    398:        Texinfo was updated to 4.0.  To avoid failures when trying to
1.28      assar     399:        build the included texinfo files, do:
                    400:
                    401:        cd src/gnu/usr.bin/texinfo
                    402:        make MKINFO=no dependall install
1.25      thorpej   403:
                    404: 20010718:
                    405:        Enabled correct .init/.fini processing in crt0.  The way this
                    406:        was done was to change a -I directive to cc(1), which means
                    407:        make(1) will have a stale dependency (it will be checking the
                    408:        timestamp on the wrong "dot_init.h").
                    409:
                    410:        The symptom you will see is that new programs die with SIGSEGV
                    411:        if you have a stale dependency.
                    412:
                    413:        Solution: "make cleandir" in both lib/csu and libexec/ld.elf_so
                    414:        before starting your build.
1.26      thorpej   415:
                    416: 20010628:
                    417:        A construct was added to uvm_page.h that uncovered a bug
                    418:        in lint(1).  If you get a warning/error about a non-portable
                    419:        bitfield, update your lint(1) before proceeding.
1.21      jmc       420:
                    421: 20010226:
1.22      jmc       422:        Added named user/group to system. Need to hand add this in or builds
1.21      jmc       423:        will break as mtree aborts early.
                    424:
                    425:        To work around add by hand:
                    426:
                    427:        named:*:14:
                    428:
1.22      jmc       429:        to /etc/group and add:
                    430:
                    431:        named:*:14:14::0:0:Named pseudo-user:/var/named:/sbin/nologin
                    432:
                    433:        to master.passwd (use vipw for instance if doing by hand).
                    434:
                    435:        Now a make build should progress.
1.18      jmc       436:
                    437: 20010219:
1.52      wiz       438:        get/setprogname() added. Any hostprogs that may use this will need
1.20      jmc       439:         to be bootstrapped manually until the host system is current.
1.18      jmc       440:
                    441:         Known problems: sys/arch/macppc/stand/fixcoff
1.19      cgd       442:                        usr.sbin/config (adding -DMAKE_BOOTSTRAP to
                    443:                          CFLAGS and rebuilding should work)
1.20      jmc       444:                        usr.sbin/mdsetimage - Build a static copy if
                    445:                          building a snapshot before fully bootstrapped.
1.15      christos  446:
                    447: 20010204:
                    448:        prepare the code to compile with stricter gcc flags. in
                    449:        particular start eliminating redundant declarations. Yacc
                    450:        needs to be installed before make build.
1.10      christos  451:
                    452: 20010114:
                    453:        introduce .if commands(target) in make(1). You need to
                    454:        bring everything up-to-date first, then without installing
1.23      tron      455:        anything make and install in usr.bin/make, then proceed
1.10      christos  456:        with make build.
1.9       sommerfe  457:
                    458: 20010101:
                    459:        bsd.subdir.mk committed 20001230 had a bug which caused
                    460:        afterinstall targets to run too soon; update again.
1.8       sommerfe  461:
                    462: 20001230:
                    463:        New share/mk files needed to support .WAIT in SUBDIR variables.
                    464:        If you get make errors,
                    465:                (cd share/mk; make install)
                    466:        Also, PRINTOBJDIR has changed and is now used more heavily.
1.6       ad        467:
                    468: 20001019:
1.7       ad        469:        The `ca' device driver has been replaced by `ld'; although the
1.6       ad        470:        major and minor numbers haven't changed, you should update your /dev
                    471:        directory.
1.1       abs       472:
1.4       itojun    473: 20000929:
                    474:        The following make directives are obsoleted.
                    475:        MKCRYPTO_RSA NOCRYPTO_RSA NOCRYPTO_RC5 NOCRYPTO_IDEA
                    476:        By default, RSA is built into libcrypto.  IDEA and RC5 will not be
1.16      wiz       477:        built into libcrypto.  By using MKCRYPTO_{RC5,IDEA}, you can build
1.4       itojun    478:        additional library libcrypto_{idea,rc5}.
1.1       abs       479:
                    480:
                    481: Hints for a more successful build:
                    482: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.2       mrg       483:     Build a new kernel first:
                    484:        This makes sure that any new system calls or features
                    485:           expected by the new userland will be present.  This
                    486:           helps to avoid critical errors when upgrading.
1.1       abs       487:     Use object directories:
                    488:        This helps to keep stale object
                    489:           files from polluting the build if a Makefile "forgets"
                    490:           about one.  It also makes it easier to clean up after
                    491:           a build.  It's also necessary if you want to use the
                    492:           same source tree for multiple machines.
                    493:           To use object directories:
                    494:            a) cd /usr/src ; make cleandir
1.2       mrg       495:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    496:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       497:            d) cd /usr/src ; make build
1.2       mrg       498:           Note that running "make obj" in a directory will create
                    499:           in obj.$MACHINE directory.
1.1       abs       500:     Build to a DESTDIR:
                    501:        This helps to keep old
                    502:           installed files (especially libraries) from interfering
                    503:           with the new build.
                    504:           To build to a DESTDIR, set the DESTDIR environment
1.2       mrg       505:           variable before running make build.  It should be set to
                    506:           the pathname of an initially empty directory.
1.1       abs       507:           Problems: you might need to update critical utilities
                    508:                without using DESTDIR since nothing is executed
                    509:                from what is installed in DESTDIR.
                    510:                (See critical utils, below)
                    511:     Build often:
                    512:        This keeps critical utilities current enough to not choke
                    513:        on any other part of the source tree that depends on up to
                    514:        date functionality.
                    515:
                    516: What to do if things don't work:
                    517: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    518: When things don't work there is usually a few things that commonly
                    519: should be done.
                    520:     1) make includes
                    521:        This should be done automatically by make build.
                    522:     2)  cd share/mk && make install
                    523:        Again, automatically done by make build.
                    524:
                    525: Failsafe rebuild of a small part of the tree:
                    526: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    527: To make sure you rebuild something correctly you want to do
                    528: something like the following:
                    529:     1)  Make sure the includes and .mk files are up to date.
                    530:     2)  Make sure any program used to build the particular
                    531:        utility is up to date.  (yacc, lex, etc...)
                    532:     3)  cd ...path/to/util...
                    533:        make cleandir
                    534:        rm ...all obj directories...
                    535:        make cleandir                   # yes, again
                    536:        make obj
                    537:        make depend && make
                    538:
                    539: Failsafe rebuild of the entire tree:
                    540: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    541: If you really want to make sure the source tree is clean and
1.2       mrg       542: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    543: (a make(1) Makefile) in this manner is not right, and will not work
                    544: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       545:
                    546: ---cut here---
                    547: #!/bin/sh
                    548: . /etc/mk.conf
                    549:
1.58      lukem     550: if [ -z $NETBSDSRCDIR ] ; then
                    551:     NETBSDSRCDIR=/usr/src
1.1       abs       552: fi
1.58      lukem     553: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       554:     echo Unable to find sources
                    555:     exit 1
                    556: fi
1.58      lukem     557: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       558:
                    559: if [ -z $BSDOBJDIR ] ; then
                    560:     BSDOBJDIR=/usr/obj
                    561: fi
                    562: if [ -d $BSDOBJDIR ] ; then
                    563:     rm -rf $BSDOBJDIR
                    564: fi
                    565:
1.58      lukem     566: cd $NETBSDSRCDIR && make cleandir
1.1       abs       567:
                    568: ---cut here---
                    569:
                    570: Critical utilities:
                    571: ^^^^^^^^^^^^^^^^^^^
                    572:        gnu/usr.bin/egcs
1.3       itojun    573:        usr.bin/compile_et
1.1       abs       574:        usr.bin/make
                    575:        usr.bin/yacc
                    576:        usr.bin/lex
1.11      lukem     577:        usr.bin/xlint
1.2       mrg       578:        usr.sbin/config
1.1       abs       579:
1.34      simonb    580: Other problems and possible solutions:
1.1       abs       581: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    582: Symptom:Unreasonable compiler errors.
                    583: Fix:   Rebuild gnu/usr.bin/egcs
                    584:
                    585: Symptom:Complaints involving a Makefile.
1.17      erh       586: Fix:   Rebuild usr.bin/make:
                    587:        cd usr.bin/make && make && make install
                    588:         Or, a failsafe method if that doesn't work:
                    589:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    590:
1.1       abs       591: Fix:   Make sure .mk files are up to date.
                    592:        cd share/mk && make install
1.2       mrg       593:
                    594: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
                    595: Fix:   Rebuild usr.sbin/config
1.1       abs       596:
                    597: Symptom:
                    598: Fix:   Rebuild usr.bin/yacc
                    599:
                    600: Symptom:
                    601: Fix:   Rebuild usr.bin/lex
                    602:
                    603: Symptom:
                    604: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    605:
                    606: Symptom:Obsolete intermediate files are used during compilation
                    607: Fix:   Try the following sequence of commands in the directory in question.
                    608:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    609:        (If you built the tree without "make obj" in the past, obsolete files
                    610:        may remain.  The command tries to clean everything up)
1.5       wiz       611:
                    612: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible pointer type
                    613: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    614:
                    615: Symptom:mklocale not found during build in share/locale/ctype
                    616: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    617:
1.86      kleink    618: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    619: Fix:    Rebuild and install lib/libc
                    620:
1.19      cgd       621: Symptom:usr.sbin/config fails to build.
                    622: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    623:
1.19      cgd       624: Symptom:undefined reference to `getprogname' or `setprogname'
                    625: Fix:    Rebuild and install lib/libc
1.24      abs       626:
                    627: Symptom:lint does not understand the '-X' option
                    628: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint

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