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Annotation of src/UPDATING, Revision 1.229

1.229   ! jym         1: $NetBSD: UPDATING,v 1.228 2011/08/17 09:18:38 mrg Exp $
1.1       abs         2:
1.123     jmc         3: This file (UPDATING) is intended to be a brief reference to recent
                      4: changes that might cause problems in the build process, and a guide for
                      5: what to do if something doesn't work.
1.1       abs         6:
1.123     jmc         7: For a more detailed description of the recommended way to build NetBSD
                      8: using build.sh, see the BUILDING file.
                      9:
                     10: Note that much of the advice in this UPDATING file was written before
                     11: build.sh existed.  Nevertheless, the advice here may be useful for
                     12: working around specific problems with build.sh.
                     13:
                     14: See also: BUILDING, build.sh, Makefile.
1.1       abs        15:
                     16: Recent changes:
                     17: ^^^^^^^^^^^^^^^
1.229   ! jym        18: 20111001:
        !            19:        the prop_*_send_syscall() functions from proplib(3) have been
        !            20:        changed and their new version is not backward compatible with the old
        !            21:        one. So ensure that all consumers of these functions (currently:
        !            22:        quota2 code and its tests) are updated together with the new lib.
        !            23:
1.228     mrg        24: 20110817:
                     25:        sparc has been changed to use GCC 4.5.3, so any objdir or
                     26:        DESTDIR for them should be deleted before updating.
                     27:
1.227     riastrad   28: 20110806:
                     29:        i386 and amd64 have been changed to use GCC 4.5.3, so any
                     30:        objdir or DESTDIR for them should be deleted before updating.
                     31:
1.226     mrg        32: 20110805:
                     33:        The update to GCC 4.5.3 requires a non-trivial portion of
                     34:        the tree to be cleaned.  Best to delete both objdir and
                     35:        DESTDIR before running this update.  So far, only the
                     36:        sparc64, mips and powerpc platforms have changed.
                     37:
1.225     matt       38: 20110803:
                     39:        The layout of external/public-domain/xz has changed. To do an
                     40:        update build you will have to remove the contents of the OBJDIR
                     41:        for external/public-domain/xz/bin by hand as the xz entry there
                     42:        is now a directory.
                     43:
1.223     joerg      44: 20110410:
1.224     dholland   45:        The configuration of src/tools/gcc has changed. To do an
                     46:        update build you have to clean both tools/binutils and
                     47:        tools/gcc by hand.
1.223     joerg      48:
1.222     plunky     49: 20110328:
                     50:        Building the Xorg binary was moved into a subdirectory to fix
                     51:        ordering issues with "make all". It may be necessary to remove
                     52:        the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86
                     53:        if your update build fails, as the "Xorg" entry there is now a
                     54:        directory.
                     55:
1.220     joerg      56: 20110121:
1.221     lukem      57:        Assembler files no longer use -traditional-cpp.  This can break
1.220     joerg      58:        the build of individual parts of the tree.  This is handled
                     59:        correctly by build.sh.  Manual builds have to update /usr/share/mk
                     60:        and re-run config(1) for any kernel configurations as needed.
1.218     joerg      61:
1.217     jruoho     62: 20101217:
                     63:        The tcpdump(8) program was changed to drop privileges and chroot(2)
                     64:        by default. It may be necessary to manually update passwd(5) and
                     65:        group(5) in order to make the program work with existing setups.
                     66:
1.216     christos   67: 20101125:
                     68:        The latest changes to setenv(3) dissallow setting environment
                     69:        variables with names that contain '='. Revision 1.18 of env.c
                     70:        assumed that this was allowed. Installing a new libc with an
                     71:        old copy of /usr/bin/env causes env x=1 printenv | grep x= to
                     72:        break which affects the autoconf tests for dependency finding,
                     73:        so building gcc will end up printing:
                     74:            checking dependency style of gcc... none
                     75:            configure: error: no usable dependency style found
                     76:        Fix it by rebuilding and re-installing env.
1.138     lukem      77:
1.215     mrg        78: 20101119:
                     79:        Recent Xorg updates in xsrc/external/mit/ may cause various build
                     80:        or run-time problems.  Delete your entire DESTDIR and OBJDIR if you
                     81:        have any build problems with xsrc, or problems with mismatched
                     82:        versions between xorg-server and drivers.
                     83:
1.213     jmmv       84: 20100604:
                     85:        The update of ATF to 0.9 causes old tests written in shell to fail
                     86:        unless they are rebuilt.  If you are building with MKUPDATE=yes,
                     87:        you need to clean the src/external/bsd/atf/tests/ and the src/tests/
                     88:        trees by hand.
                     89:
1.211     tnozaki    90: 20100522:
1.212     mrg        91:        Recent Xorg updates in xsrc/external/mit/ will cause various build
                     92:        problems.  Delete your entire DESTDIR and OBJDIR if you have any
                     93:        build problems with xsrc.
                     94:
                     95: 20100522:
1.211     tnozaki    96:        private section of <ctype.h> was splitted, and now mklocale(1)
1.214     dholland   97:        include ctype_local.h, so you have to make cleandir in tools/mklocale.
1.211     tnozaki    98:
1.210     christos   99: 20100520:
                    100:        The location of the xkb compiled descriptions has changed. Please
                    101:        remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR.
                    102:
1.209     njoly     103: 20100222:
                    104:        The shared objects file extension has been changed from .so to
                    105:        .pico, in order to avoid conflicts with shared libraries names
                    106:        libXX.so.  All now stale regular .so files can be removed from
                    107:        your object directories.
                    108:
1.208     roy       109: 20100204:
                    110:        The termcap database has been removed from the sources,
                    111:        but has not been marked obsolete so it is not removed
                    112:        from the system when upgrading.
                    113:        As such, you will need to remove them from your object
                    114:        and destination directories.
                    115:
1.203     dyoung    116: 20091101:
1.205     dholland  117:         After updating, it may be necessary to make the 'cleandir'
                    118:         target in src/tools/yacc/ and in src/usr.bin/yacc/ before a
                    119:         'build.sh -u tools' or 'build.sh -u distribution'.  Ditto
                    120:         src/tools/lex/ and src/usr.bin/lex/.
1.203     dyoung    121:
1.202     mrg       122: 20091001:
1.206     dholland  123:        On amd64 you must rebuild tools (to get the new binutils)
                    124:        before building a kernel, or the build fails on cpufunc.S.
                    125:
                    126: 20091001:
1.202     mrg       127:        An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb
                    128:        symlink, failing the build.  Delete the link, and the subdir
                    129:        it is in, and retry your build.
                    130:
1.201     dsl       131: 20090718:
                    132:        libc build changed so that strchr() provides the extra entry
                    133:        point for index(). Update build of libc.a (and libc_pic.a)
                    134:        may fail because the archive contains the unwanted index.o.
                    135:        (Similarly for strrchr() and rindex().)
                    136:
1.198     mrg       137: 20090709:
                    138:        Native Xorg was upgraded again.  Builds will probably fail again
                    139:        without a clean objdir, at least for src/external/mit/xorg.
                    140:
1.197     mrg       141: 20090616:
                    142:        Native Xorg was upgraded.  Builds will need a clean objdir for
                    143:        src/external/mit/xorg.  Upgrading a system from sets will not
                    144:        work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc
                    145:        subdirectory has been changed into a file, and this needs to
                    146:        be manually "rm -r"'ed before installing xbase.tgz.
                    147:
1.195     perry     148: 20090501:
                    149:        Several new functions were added to string.h/libc, and this
                    150:        can cause autoconf problems during the tool build for people
                    151:        who fail to clean out their tools objects properly. If you
                    152:        note messages about stpcpy, stpncpy or strnlen accompanying a
                    153:        failure during the tool build, clean out all your tools
                    154:        objects and start again.
                    155:
1.194     mrg       156: 20090325:
                    157:        The i386 port was switched to i486 default toolchain.  This requires
                    158:        cleaning your src/tools directory and $TOOLDIR and rebuilding them.
                    159:
1.192     skrll     160: 20090126:
1.207     mbalmer   161:        The __posix_fadvise50 system call changed assembly stub type. You
                    162:        need to 'rm -f __posix_fadvise50.*' in the libc build directory
                    163:        to avoid using the old assembly stub.
1.192     skrll     164:
1.191     joerg     165: 20090202:
                    166:        pkg_install now depends on the pkgdb cache for automatic conflict
                    167:        detection.  It is recommented to rebuild the cache with
                    168:        ``pkg_admin rebuild''.
                    169:
1.184     christos  170: 20090110:
                    171:        time_t and dev_t have been bumped to 64 bit quantities. To upgrade:
                    172:        1. Make sure your kernel has COMPAT_50 in it. Build and install.
1.188     christos  173:           This is needed even in the MODULAR kernel because there is
                    174:           conditionally compiled code in rtsock.c.
1.184     christos  175:        2. make sure build.sh completes and the binaries in a chroot work
                    176:           before installing.
                    177:        3. If you don't use build.sh and you build directly to root, and
1.187     dholland  178:           your build breaks in the middle, don't despair. Make sure headers
1.184     christos  179:           are installed properly, and start building libraries first libc
                    180:           and libutil, install them and then continue building all the
                    181:           libraries in src/lib and src/gnu/lib and install them. Once
                    182:           the new libraries are installed, you can restart the build.
                    183:        4. If you compile packages and you notice link time warnings,
1.189     hubertf   184:           rebuild the required packages to update their shared libraries.
                    185:           Any package you rebuild will require rebuilding all the packages
                    186:           that depend on it.
1.186     christos  187:        5. Next time you run pwd_mkdb with the new binary, the file
                    188:           will be upgraded and it will not be backwards compatible.
1.190     apb       189:        6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
                    190:           lastlogx(5)) have been versioned, and there is a heuristic
                    191:           for utmp. You are better off removing the old files after
                    192:           upgrading.  The automated clearing of /var/run during
                    193:           boot, and the automated rotating of files in /var/log by
                    194:           newsyslog(8), may mean that you do not have to remove the
                    195:           files manually.
                    196:        7. The optional accounting file (/var/account/acct, see
                    197:           accton(8)) has not been versioned, and will need to be
                    198:           removed.  The automatic rotation of the accounting file by
                    199:           /etc/daily limits the bad consequences of failure to remove
                    200:           the file.
1.196     dholland  201:        8. Application software that writes time_t to binary files on
                    202:           disk will break or need attention. Most notably: if you are
                    203:           using PostgreSQL < 8.4, you need to dump your databases,
                    204:           rebuild PostgreSQL with the new time_t, then restore.
1.185     jmcneill  205:
1.183     pgoyette  206: 20081219:
                    207:        config(1) has been updated, and one of the files it creates -
                    208:        swapnetbsd.o - has changed format.  You need to rebuild config
                    209:        (done automatically by build.sh) and then you need to rerun
                    210:        config on all kernel configuration files before rebuilding those
                    211:        kernels.
                    212:
1.181     cube      213: 20081205:
                    214:        If you build with MKX11=no, you should remove /etc/rc.d/xdm and
                    215:        /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
                    216:        set and will appear as extra files for MKX11=no update builds.
1.178     lukem     217:
1.179     tsutsui   218: 20081122:
1.182     tsutsui   219:        On i386, various kernel options(4) in GENERIC including
1.180     wiz       220:        file systems have been disabled and moved into kernel modules.
                    221:        Before trying a new GENERIC kernel, you have to prepare the
1.179     tsutsui   222:        following files as well as a new GENERIC kernel:
                    223:
                    224:        - build and install kernel modules from src/sys/modules
                    225:
                    226:        - install the latest bootloader, which will load a module
1.180     wiz       227:          for the file system from which the kernel is loaded automatically
1.179     tsutsui   228:
1.180     wiz       229:        If you have to load your kernel from a file system which is not of
                    230:        the same type as the root file system, you have to load the necessary
                    231:        file system module manually on the boot prompt or in the boot.cfg file.
1.179     tsutsui   232:
1.178     lukem     233: 20080827:
                    234:        If you built and installed a libc from sources between
                    235:        2008/08/20 and 2008/08/26 you got a broken strtouq(3)
                    236:        which results in false errors reported by lint(1).
                    237:        Since this breaks the libc build itself, manual help is
1.180     wiz       238:        needed -- lint must be disabled temporarily, e.g.:
1.178     lukem     239:          $ (cd lib/libc && make MKLINT=no dependall install)
                    240:
1.177     christos  241: 20080813:
                    242:        MKDEBUG build was broken because the .depend files did not know
                    243:        about .go files. You need to remove all .depend files and rebuild.
                    244:
1.200     dholland  245: 20080802:
                    246:        A regression in binary compatibility for pthread_mutex_t has
                    247:        been fixed. Unfortunately, the price is breaking compatibility
                    248:        for -current.
                    249:
                    250:        Threaded programs (using libpthread) and C++ programs (using
                    251:        libstdc++) compiled after 20070907 and before 20080802 need to
                    252:        be recompiled.
                    253:
                    254:        One way to find affected pkgsrc packages:
                    255:
                    256:          $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO
                    257:          $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO
                    258:
1.175     simonb    259: 20080731:
                    260:        WAPBL (metadata journaling support) has been added, but at this
                    261:        time isn't backwards compatible with pre-WAPBL aware kernels
                    262:        and userland (fsck_ffs in particular).  Please make sure you
                    263:        don't use a journaled filesystem with an older kernel/userland,
1.176     simonb    264:        especially an uncleanly mounted journaled filesystem.  WAPBL
                    265:        also requires the super block to be in the UFS2 format.  You
                    266:        can use fsck_ffs -c 4 to update the superblock format.
1.175     simonb    267:
1.174     lukem     268: 20080721:
                    269:        Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
                    270:        isn't defined.
                    271:
1.173     freza     272: 20080531:
                    273:        The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
                    274:        from 125 (conflicted with DRVCTLCOMMAND) to 129. The drvctl(8)
                    275:        utility needs to be rebuilt and reinstalled as older binaries
                    276:        won't work correctly. The following sequence of commands:
                    277:
                    278:          $ (cd sys/sys/ && nbmake-$arch includes)
                    279:          $ (cd sbin/drvctl/ && nbmake-$arch clean)
                    280:          $ (cd sbin/drvctl/ && nbmake-$arch all)
                    281:
                    282:        leaves new drvctl utility in sbin/drvctl build directory.
                    283:
1.172     lukem     284: 20080503:
                    285:        The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
                    286:
1.171     he        287: 20080521:
                    288:        For a while, unprivileged UPDATE builds would fail to
                    289:        succeed at the checkflist stage, complaining that
                    290:        ${DESTDIR}/stand/<arch>/ did not exist.  A fix for this
                    291:        problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
                    292:        If you already hit this problem, update the .mk file,
                    293:        remove ${DESTDIR}/stand/<arch>, and re-run the build.
                    294:
1.174     lukem     295: 20080303:
                    296:        Linker warnings are now fatal if $WARNS>0.
                    297:
1.170     christos  298: 20080126:
                    299:        The posix_fadvise system call has been changed from an assembly
                    300:        stub, to a c file that calls an assembly stub. You need to
                    301:        'rm -f posix_fadvise.* .depend' in the libc build directory to
                    302:        avoid using the old assembly stub.
                    303:
1.168     joerg     304: 20071209:
                    305:        The acpiec(4) driver has been split into two attachments. If you
                    306:        get ACPI errors before the attachment, please update your kernel
1.169     wiz       307:        configuration file appropriately or see GENERIC for more details.
1.168     joerg     308:
1.166     xtraeme   309: 20071115:
                    310:        The it(4) driver has been renamed to itesio(4) and the old port
                    311:        argument specified in the kernel configuration file is not valid
                    312:        anymore. The itesio(4) driver now uses the Super I/O address port
                    313:        rather than the EC address port. Please update your kernel
1.167     wiz       314:        configuration file appropriately or see GENERIC for more details.
1.166     xtraeme   315:
1.165     jmmv      316: 20071028:
                    317:        The pccons(4) driver has been removed from the NetBSD/shark port.
                    318:        You need to update any custom kernel configuration file you have
                    319:        to remove any references to pccons (which includes removing the
                    320:        now useless XSERVER option) and replace them with the correct
                    321:        entries for the wscons driver.  See the GENERIC configuration file
                    322:        for more details.
                    323:
1.164     gdt       324: 20070913:
                    325:        A latent bug in dhclient/dhcpd that caused it to be unable to
                    326:        enumerate interfaces was fixed.  The bug began to cause
                    327:        problems after 20070911 when the kernel's SIOCGIFCONF
                    328:        implementation was repaired.  From 20070529 to 20070911 racoon
                    329:        could not enumerate interfaces.  (These are noted because
                    330:        normal kernel/userspace version matching hygiene is not
                    331:        sufficient to avoid this problem.)  Ensure that both kernel
                    332:        and userland are from after 20070913.
                    333:
1.163     joerg     334: 20070703:
1.199     dholland  335:        nbinstall has been renamed ${MACHINE_GNU_ARCH}-install. It
                    336:        calls the target-specific strip program, and the logic to pass
                    337:        down STRIP from make has been removed.  This requires a
                    338:        re-installation of tools.
1.163     joerg     339:
1.161     dsl       340: 20070422:
                    341:        The way OS emulations lookup filenames inside the emulation root
                    342:        has been changed.  Rather than modify the pathname (and copy back
                    343:        to userspace) namei() and lookup() directly check the emulation
                    344:        root. One side effect is that absolute symlinks inside the emulated
1.167     wiz       345:        root file system will be relative to that file system - unless they
1.161     dsl       346:        start /../ this is useful when the emulated root is a real install
                    347:        that has such links.
                    348:        This might affect symlinks that have been added to reference outside
                    349:        the emulated root.
                    350:
1.160     jmcneill  351: 20070412:
                    352:        The pckbc driver on sgimips IP32 has been removed. Use macekbc
                    353:        instead. See the GENERIC32_IP3x kernel configuration for an
                    354:        example.
                    355:
1.159     gdt       356: 20070319:
                    357:         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
                    358:         on many platforms due to incorrect flags settings.  If you
                    359:         updated and built after about 20070315, do "nbmake-$arch
                    360:        cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
                    361:        rebuild of object files that might have been built
                    362:        incorrectly, and ensure that you have at least
                    363:        src/lib/libc/Makefile 1.130.
                    364:
1.158     dbj       365: 20070210:
                    366:         src/sys/sys/{sa.h,savar.h} were removed.
                    367:           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
                    368:               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
                    369:         will allow dependencies on those files to get get rebuilt
                    370:
1.157     apb       371: 20070209:
                    372:         The threading model was changed when the newlock2 branch
                    373:         was merged to NetBSD-current.  If you boot with a new
                    374:         kernel (version 4.99.10), then you also need a new pthread
                    375:         library (/usr/lib/libpthread.so.0.7).  If you boot with
                    376:         an old kernel, then you need the old pthread library
                    377:         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
                    378:         the pthread library in sync, old threaded applications should
                    379:         continue to work with an old or new kernel.  Note that named(8)
                    380:        is the only threaded application in the base system.
                    381:
1.154     he        382: 20061214:
                    383:        Following the move of string_to_flags() and flags_to_string()
                    384:        from the bin/ls/ sources to libutil, users doing UPDATE builds
                    385:        will need to do a "make cleandir" in
                    386:                tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
                    387:                bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156     he        388:                usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
                    389:                as the installation images in distrib/
1.154     he        390:        in order to excise stale references to the old stat_flags.h header
                    391:        file in the ls sources -- stat_flags.h has been removed.
                    392:
1.152     christos  393: 20061108:
                    394:        The configure script used in the src/tools/gcc compiler has been
                    395:        changed to indicate that our libc has ssp support built-in and
                    396:        does not depend on -lssp and -lssp-nonshared. You'll need to
                    397:        make clean in src/tools/gcc first to rebuild the compiler.
                    398:
1.151     rpaulo    399: 20061009:
                    400:        The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
                    401:        available. Use net.inet{,6}.tcp{,6}.congctl.selected instead.
                    402:
1.150     bjh21     403: 20060814:
                    404:        The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
                    405:        withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
                    406:        kernel configuration for an example.  X servers from the last
                    407:        few years should cope.
                    408:
1.149     christos  409: 20060703:
                    410:        MPACPI is no more. We always configure PCI interrupts using ACPI
                    411:        if we have an ACPI kernel. The option MPACPI_SCANPCI has been renamed
                    412:        to ACPI_SCANPCI. Thanks to work from fvdl.
                    413:
1.148     dogcow    414: 20060627:
                    415:        socket(2) has changed, and its system call has been versioned.
                    416:        For userlands with the old version of socket(2), make sure that
                    417:        your kernel has 'options COMPAT_30' set, or else 'bad system call'
                    418:        errors will result.
                    419:
1.1       abs       420: Hints for a more successful build:
                    421: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123     jmc       422:     Use build.sh, but do not use its "expert mode":
1.132     jmmv      423:        This will automatically build the tools in the
1.123     jmc       424:           correct order, and it will keep the tools and the
                    425:           new build products from interfering with the running
                    426:           system.  This will allow you to ignore most of the
                    427:           other advice in this file.
1.2       mrg       428:     Build a new kernel first:
                    429:        This makes sure that any new system calls or features
                    430:           expected by the new userland will be present.  This
                    431:           helps to avoid critical errors when upgrading.
1.1       abs       432:     Use object directories:
                    433:        This helps to keep stale object
                    434:           files from polluting the build if a Makefile "forgets"
                    435:           about one.  It also makes it easier to clean up after
                    436:           a build.  It's also necessary if you want to use the
                    437:           same source tree for multiple machines.
1.123     jmc       438:           To use object directories with build.sh:
                    439:            a) invoke build.sh with the "-M" or "-O" options.
                    440:           To use object directories without using build.sh:
1.1       abs       441:            a) cd /usr/src ; make cleandir
1.2       mrg       442:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    443:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       444:            d) cd /usr/src ; make build
1.2       mrg       445:           Note that running "make obj" in a directory will create
                    446:           in obj.$MACHINE directory.
1.1       abs       447:     Build to a DESTDIR:
1.123     jmc       448:        This helps to keep old installed files (especially libraries)
                    449:           from interfering with the new build.
                    450:           To build to a DESTDIR with build.sh, use the "-D" option.
                    451:           To build to a DESTDIR without using build.sh, set the DESTDIR
                    452:           environment variable before running make build.  It should be
                    453:           set to the pathname of an initially empty directory.
                    454:           Problems: if you do not use build.sh, you might need to
                    455:                update critical utilities without using DESTDIR since
                    456:                nothing is executed from what is installed in DESTDIR.
                    457:                (See critical utils, below.)
1.1       abs       458:     Build often:
                    459:        This keeps critical utilities current enough to not choke
                    460:        on any other part of the source tree that depends on up to
1.123     jmc       461:        date functionality.  If you use build.sh, you should not have
                    462:        this problem.
1.1       abs       463:
                    464: What to do if things don't work:
                    465: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    466: When things don't work there is usually a few things that commonly
                    467: should be done.
                    468:     1) make includes
                    469:        This should be done automatically by make build.
                    470:     2)  cd share/mk && make install
                    471:        Again, automatically done by make build.
                    472:
                    473: Failsafe rebuild of a small part of the tree:
                    474: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    475: To make sure you rebuild something correctly you want to do
                    476: something like the following:
                    477:     1)  Make sure the includes and .mk files are up to date.
                    478:     2)  Make sure any program used to build the particular
                    479:        utility is up to date.  (yacc, lex, etc...)
                    480:     3)  cd ...path/to/util...
                    481:        make cleandir
                    482:        rm ...all obj directories...
                    483:        make cleandir                   # yes, again
                    484:        make obj
                    485:        make depend && make
                    486:
                    487: Failsafe rebuild of the entire tree:
                    488: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    489: If you really want to make sure the source tree is clean and
1.2       mrg       490: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    491: (a make(1) Makefile) in this manner is not right, and will not work
                    492: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       493:
                    494: ---cut here---
                    495: #!/bin/sh
                    496: . /etc/mk.conf
                    497:
1.58      lukem     498: if [ -z $NETBSDSRCDIR ] ; then
                    499:     NETBSDSRCDIR=/usr/src
1.1       abs       500: fi
1.58      lukem     501: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       502:     echo Unable to find sources
                    503:     exit 1
                    504: fi
1.58      lukem     505: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       506:
                    507: if [ -z $BSDOBJDIR ] ; then
                    508:     BSDOBJDIR=/usr/obj
                    509: fi
                    510: if [ -d $BSDOBJDIR ] ; then
                    511:     rm -rf $BSDOBJDIR
                    512: fi
                    513:
1.58      lukem     514: cd $NETBSDSRCDIR && make cleandir
1.1       abs       515:
                    516: ---cut here---
                    517:
                    518: Critical utilities:
                    519: ^^^^^^^^^^^^^^^^^^^
1.3       itojun    520:        usr.bin/compile_et
1.1       abs       521:        usr.bin/make
                    522:        usr.bin/yacc
                    523:        usr.bin/lex
1.11      lukem     524:        usr.bin/xlint
1.142     drochner  525:        usr.bin/config
1.1       abs       526:
1.34      simonb    527: Other problems and possible solutions:
1.1       abs       528: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    529: Symptom:Complaints involving a Makefile.
1.17      erh       530: Fix:   Rebuild usr.bin/make:
                    531:        cd usr.bin/make && make && make install
1.111     simonb    532:        Or, a failsafe method if that doesn't work:
1.17      erh       533:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    534:
1.1       abs       535: Fix:   Make sure .mk files are up to date.
                    536:        cd share/mk && make install
1.2       mrg       537:
                    538: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142     drochner  539: Fix:   Rebuild usr.bin/config
1.1       abs       540:
                    541: Symptom:
                    542: Fix:   Rebuild usr.bin/yacc
                    543:
                    544: Symptom:
                    545: Fix:   Rebuild usr.bin/lex
                    546:
                    547: Symptom:
                    548: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    549:
                    550: Symptom:Obsolete intermediate files are used during compilation
                    551: Fix:   Try the following sequence of commands in the directory in question.
                    552:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    553:        (If you built the tree without "make obj" in the past, obsolete files
                    554:        may remain.  The command tries to clean everything up)
1.5       wiz       555:
1.207     mbalmer   556: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
                    557:        pointer type
1.5       wiz       558: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    559:
                    560: Symptom:mklocale not found during build in share/locale/ctype
                    561: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    562:
1.86      kleink    563: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    564: Fix:    Rebuild and install lib/libc
                    565:
1.142     drochner  566: Symptom:usr.bin/config fails to build.
1.19      cgd       567: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    568:
1.19      cgd       569: Symptom:undefined reference to `getprogname' or `setprogname'
                    570: Fix:    Rebuild and install lib/libc
1.24      abs       571:
                    572: Symptom:lint does not understand the '-X' option
                    573: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint
1.223     joerg     574:
                    575: Symptom:Update build fails in src/tools/gcc complaining that a variable
                    576:        (e.g. CPPFLAGS) has changed since the previous run.
                    577: Fix:    Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.

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