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Annotation of src/UPDATING, Revision 1.306

1.306   ! christos    1: $NetBSD: UPDATING,v 1.305 2019/11/13 09:59:02 martin 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:
1.257     apb        14: Sections are marked with "^^^^^".  After the section on "Recent changes"
                     15: are several sections containing more general information.
                     16:
1.123     jmc        17: See also: BUILDING, build.sh, Makefile.
1.1       abs        18:
                     19: Recent changes:
                     20: ^^^^^^^^^^^^^^^
1.230     tls        21:
1.306   ! christos   22: 20191118:
        !            23:        More architectures were switched to gcc8:
        !            24:            i386, ia64 powerpc64, sparc, sparc64, arm
        !            25:        The same comments as in 20191022 apply.
        !            26:
1.305     martin     27: 20191112:
                     28:        The LLVM update requires a clean rebuild for all architectures using
                     29:        LLVM during the tools build phase (i386, amd64, aarch64).
                     30:
1.304     martin     31: 20191022:
                     32:        Ports amd64 and aarch64 switched to GCC 8.3 by default.
                     33:        In-place ("expert mode", build.sh -E) builds are not supported
                     34:        when going from a GCC 7 userland to GCC 8. Do a regular
                     35:        build to a different DESTDIR (or preferably: build.sh -U) at least
1.306   ! christos   36:        once and install sets, or download comp.{tar.xz,tgz} from the
1.304     martin     37:        daily builds and install that before doing the next in-place build.
                     38:
1.303     mrg        39: 20191001:
                     40:        GCC 8.3 was imported.  Builds of src/tools/gcc may fail if
                     41:        old builds with GCC 7 output now uses GCC 8.  Clean this
                     42:        directory, and also clean src/external/gpl3/gcc.
                     43:
1.302     riastrad   44: 20190903:
1.306   ! christos   45:        Files with names that coincide with existing files' names on
1.302     riastrad   46:        case-insensitive file systems were inadvertently committed, for
                     47:        radeon GPU firmware.  We cannot mark these as obsolete for
                     48:        postinstall to fix, so if you updated src since 2019-08-26, and
                     49:        ran build.sh distribution or ran build.sh release, you must
                     50:        manually delete the following files in your DESTDIR (which is
                     51:        usually $OBJDIR/destir.$ARCH), or from / if you have installed
                     52:        them:
                     53:
                     54:                /libdata/firmware/radeon/bonaire_ce.bin
                     55:                /libdata/firmware/radeon/bonaire_mc.bin
                     56:                /libdata/firmware/radeon/bonaire_me.bin
                     57:                /libdata/firmware/radeon/bonaire_mec.bin
                     58:                /libdata/firmware/radeon/bonaire_pfp.bin
                     59:                /libdata/firmware/radeon/bonaire_rlc.bin
                     60:                /libdata/firmware/radeon/bonaire_sdma.bin
                     61:                /libdata/firmware/radeon/bonaire_smc.bin
                     62:                /libdata/firmware/radeon/bonaire_uvd.bin
                     63:                /libdata/firmware/radeon/hainan_ce.bin
                     64:                /libdata/firmware/radeon/hainan_mc.bin
                     65:                /libdata/firmware/radeon/hainan_me.bin
                     66:                /libdata/firmware/radeon/hainan_pfp.bin
                     67:                /libdata/firmware/radeon/hainan_rlc.bin
                     68:                /libdata/firmware/radeon/hainan_smc.bin
                     69:                /libdata/firmware/radeon/hawaii_ce.bin
                     70:                /libdata/firmware/radeon/hawaii_mc.bin
                     71:                /libdata/firmware/radeon/hawaii_me.bin
                     72:                /libdata/firmware/radeon/hawaii_mec.bin
                     73:                /libdata/firmware/radeon/hawaii_pfp.bin
                     74:                /libdata/firmware/radeon/hawaii_rlc.bin
                     75:                /libdata/firmware/radeon/hawaii_sdma.bin
                     76:                /libdata/firmware/radeon/hawaii_smc.bin
                     77:                /libdata/firmware/radeon/kabini_ce.bin
                     78:                /libdata/firmware/radeon/kabini_me.bin
                     79:                /libdata/firmware/radeon/kabini_mec.bin
                     80:                /libdata/firmware/radeon/kabini_pfp.bin
                     81:                /libdata/firmware/radeon/kabini_rlc.bin
                     82:                /libdata/firmware/radeon/kabini_sdma.bin
                     83:                /libdata/firmware/radeon/kaveri_ce.bin
                     84:                /libdata/firmware/radeon/kaveri_me.bin
                     85:                /libdata/firmware/radeon/kaveri_mec.bin
                     86:                /libdata/firmware/radeon/kaveri_mec2.bin
                     87:                /libdata/firmware/radeon/kaveri_pfp.bin
                     88:                /libdata/firmware/radeon/kaveri_rlc.bin
                     89:                /libdata/firmware/radeon/kaveri_sdma.bin
                     90:                /libdata/firmware/radeon/mullins_ce.bin
                     91:                /libdata/firmware/radeon/mullins_me.bin
                     92:                /libdata/firmware/radeon/mullins_mec.bin
                     93:                /libdata/firmware/radeon/mullins_pfp.bin
                     94:                /libdata/firmware/radeon/mullins_rlc.bin
                     95:                /libdata/firmware/radeon/mullins_sdma.bin
                     96:                /libdata/firmware/radeon/oland_ce.bin
                     97:                /libdata/firmware/radeon/oland_mc.bin
                     98:                /libdata/firmware/radeon/oland_me.bin
                     99:                /libdata/firmware/radeon/oland_pfp.bin
                    100:                /libdata/firmware/radeon/oland_rlc.bin
                    101:                /libdata/firmware/radeon/oland_smc.bin
                    102:                /libdata/firmware/radeon/pitcairn_ce.bin
                    103:                /libdata/firmware/radeon/pitcairn_mc.bin
                    104:                /libdata/firmware/radeon/pitcairn_me.bin
                    105:                /libdata/firmware/radeon/pitcairn_pfp.bin
                    106:                /libdata/firmware/radeon/pitcairn_rlc.bin
                    107:                /libdata/firmware/radeon/pitcairn_smc.bin
                    108:                /libdata/firmware/radeon/tahiti_ce.bin
                    109:                /libdata/firmware/radeon/tahiti_mc.bin
                    110:                /libdata/firmware/radeon/tahiti_me.bin
                    111:                /libdata/firmware/radeon/tahiti_pfp.bin
                    112:                /libdata/firmware/radeon/tahiti_rlc.bin
                    113:                /libdata/firmware/radeon/tahiti_smc.bin
                    114:                /libdata/firmware/radeon/verde_ce.bin
                    115:                /libdata/firmware/radeon/verde_mc.bin
                    116:                /libdata/firmware/radeon/verde_me.bin
                    117:                /libdata/firmware/radeon/verde_pfp.bin
                    118:                /libdata/firmware/radeon/verde_rlc.bin
                    119:                /libdata/firmware/radeon/verde_smc.bin
                    120:
                    121:        We will re-import these radeon firmware images another way
                    122:        later.
                    123:
1.301     martin    124: 20190727:
                    125:        The uefi bootloader has gained tftp support and needs a clean
                    126:        build. If you do update builds, manually clean its object
                    127:        directory by something like:
                    128:        cd sys/arch/i386/stand/efiboot && make clean
                    129:
1.300     martin    130: 20190723:
                    131:        The jemalloc allocator in libc is now build without extended
                    132:        debugging (for performance reasons). In update builds make sure
                    133:        to rebuild it completly, by removing all affected object files,
                    134:        including compat builds, something like:
                    135:        cd /usr/obj && find . -type d -name jemalloc|xargs rm -rf
                    136:
1.299     mrg       137: 20190207:
                    138:        GCC 7 switched for many ports.  Update builds are likely to fail.
                    139:
1.298     martin    140: 20180924:
                    141:        A newer OpenSSL version has been imported. If you are doing
                    142:        update builds, make sure to remove all old obj dirs, like:
                    143:        cd /usr/obj && find . -type d -name openssl | xargs rm -rf
                    144:
1.297     joerg     145: 20180717:
                    146:        On aarch64 int64_t and related types have changed from long long
                    147:        to long. This requires recompiling all C++ binaries.
                    148:
1.296     martin    149: 20180713:
                    150:        On amd64 and i386 static binaries are now build position
                    151:        independend. This requires recompilation of all object
                    152:        files used to create the crunched /rescue binary.
                    153:        Clean the rescue directory in your obj directory before
                    154:        doing an update build, otherwise linking will fail.
                    155:
1.293     jakllsch  156: 20180414:
                    157:        Existing binutils was migrated to binutils.old.  Manual
                    158:        removal of tools/binutils objects directory may be required
                    159:        to fix tools build failure.
                    160:
1.292     mrg       161: 20180311:
                    162:        bdftopcf was updated and may need cleaning in the
                    163:        src/external/mit/xorg/tools/bdftopcf subdirectory if there are
                    164:        link errors.
                    165:
1.291     mrg       166: 20180212:
                    167:        between OpenSSL and GCC updates, many things may fail to build.
                    168:        any failure that looks like GCC or openssl is best handled by
                    169:        a clean destdir and objdir.  Full cleandir and destdir deletion
                    170:        is recommended if build failures occur.
                    171:
1.288     martin    172: 20171225:
                    173:        removal of the vadvise syscall requires manual removal of all
                    174:        associated files from the libc build object directory (including
1.289     christos  175:        the .depend files) - a command like:
1.288     martin    176:                cd $OBJ && find . -type d -name libc | xargs rm -rf
1.289     christos  177:        For architectures that support multiple "compat" binary targets,
                    178:        you'll need to cleanup both the regular libc directory and the
1.290     martin    179:        compat ones (the above command will do that).
1.288     martin    180:
1.287     kre       181: 20171010:
                    182:        a change to the build structure of external/bsd/acpica/bin/iasl
                    183:        means that its objdir (or *.d and .depend at least) might need
                    184:        to be manually removed - or a build done once without -u.
                    185:
1.286     mrg       186: 20170822:
                    187:        a new version of GMP has been imported and probably
                    188:        will break parts of builds related to themselves or GCC, both
                    189:        in the tools and the native section.  Remove all GCC, GMP, MPFR
                    190:        and MPC objdirs or build once without -u.
                    191:
1.285     mrg       192: 20170816:
                    193:        a new version of MPFR and MPC have been imported and probably
                    194:        will break parts of builds related to themselves or GCC, both
                    195:        in the tools and the native section.  Remove all GCC, GMP, MPFR
                    196:        and MPC objdirs or build once without -u.
                    197:
1.284     martin    198: 20170402:
                    199:        a new version of dhcpcd has been imported, which does not support
                    200:        update builds from the previous version. Remove your
                    201:        external/bsd/dhcpcd object dir or build once without -u.
                    202:
1.281     roy       203: 20170211:
                    204:        a new terminfo database has been imported.
                    205:        The structure of it has changed slightly from prior versions and
                    206:        an updated tic tool is required.
                    207:        If you build.sh, don't use -u
                    208:
1.280     kre       209: 20170207:
1.278     kre       210:        various arch dependent libc/exect.S files were removed
1.279     kre       211:        Either remove the obj directories (lib/libc and compat/amd64/i386/lib
                    212:        if it exists) or do a clean build.
                    213:        (This is a bug in the make system, it should be corrected without
                    214:        human intervention, but isn't.)
1.278     kre       215:
1.277     martin    216: 20170104:
                    217:        xinput build options have changed.
                    218:        Remove the obj directory (external/mit/xorg/bin/xinput)
                    219:        if you build.sh -u
                    220:
1.276     martin    221: 20170103:
                    222:        a new version of flex has been imported.
                    223:        Remove the file from obj (external/bsd/flex)
                    224:        if you build.sh -u
                    225:
1.275     spz       226: 20161014:
                    227:        a new version of OpenSSL has been imported.
                    228:        Remove the files from obj (crypto/external/bsd/openssl)
                    229:        if you build.sh -u
                    230:
1.274     martin    231: 20161009:
                    232:        a new version of dhcpcd has been imported with slightly changed
                    233:        build infrastructure. When doing a build.sh -u this requires
                    234:        pruning the external/bsd/dhcpcd objdir.
                    235:
1.273     mrg       236: 20160914:
                    237:        i386, amd64, shark, ofppc and macppc have joined shark and x68k
                    238:        ports in using xorg-server 1.18. This requires a clean destdir
                    239:        and a clean objdir.
                    240:
1.272     dholland  241: 20160527:
                    242:        i386 needs a full cleandir or objdir deletion because PIE has
                    243:        been enabled. (see the amd64 entry two down for further info)
                    244:
1.270     christos  245: 20160418:
                    246:        libedit needs manual removal of all autogenerated files since
1.271     christos  247:        some of them are not autogenerated anymore. Remember that there
                    248:        might be two copies of libedit if your platform builds "compat".
1.270     christos  249:
1.268     riastrad  250: 20160410:
                    251:        amd64 needs full "make cleandir" or deletion of objdir now that
                    252:        PIE has been enabled for amd64.  PIE, or position-independent
                    253:        executables, means all code, including executables and not just
                    254:        shared libraries, is position-independent and hence able to be
                    255:        relocated by ASLR, address space layout randomization.
                    256:
                    257:        The change was made in Makefile variables for compiler and
                    258:        linker flags, for which make(1) does not record dependencies,
                    259:        hence it is unable to detect that all .o files need rebuilding.
                    260:
                    261:        Partial rebuilds with some modified source files will likely
                    262:        fail when linking executables, since the linker refuses to mix
                    263:        position-independent code with position-dependent code in
                    264:        position-independent executables:
                    265:
                    266:                .../x86_64--netbsd/bin/ld: foo.o: relocation R_X86_64_32 against `...' cannot be used when making a shared object; recompile with -fPIC
                    267:
1.267     mrg       268: 20160401:
                    269:        Ports switching to GCC 5.3 will need a full "make cleandir".
1.269     dholland  270:        Some people have found that cleandir is not sufficient, so if
                    271:        in doubt delete the entire object directory tree for gcc.
1.267     mrg       272:
1.266     aymeric   273: 20160306:
1.265     aymeric   274:        NetBSD's regexp implementation is now part of libnbcompat.
                    275:        Nblex, nbm4, nbpax, nbsed use it and they may crash on
                    276:        non-NetBSD hosts if linked with stale object files produced
                    277:        while they included a non-NetBSD regex.h.
                    278:        In any case, you should "make cleandir" at least these tools
                    279:        before updating your toolchain.
                    280:
1.264     martin    281: 20160125:
                    282:        Dtrace has been enabled by default on some architectures.
                    283:        When doing an update build, make sure to clean the etc/mtree
                    284:        object directory before starting the build - otherwise the
                    285:        needed directories in destdir will not be created.
                    286:        An easy way to do this is:
                    287:           cd src/etc/mtree && $TOOLDIR/bin/nbmake-$arch cleandir
                    288:
1.263     dholland  289: 20150818:
                    290:        New acpica requires "make cleandir" in src/external/bsd/acpica
                    291:        again.
                    292:
1.262     christos  293: 20150413:
                    294:        New acpica requires "make cleandir" and reinstalling yacc
                    295:        in /usr/src/external/bsd/byacc and /usr/src/tools/yacc and
                    296:        also "make cleandir" in /usr/src/external/bsd/acpica.
                    297:
1.261     martin    298: 20150404:
                    299:        Lint changes require a full rebuild of the tool, so make
                    300:        sure to build without -u option to build.sh, or manually
                    301:        do a make cleandir in src/tools/lint1 and
                    302:        src/usr.bin/xlint.
                    303:
1.260     skrll     304: 20150310:
                    305:        Improvements to openssl for arm mean that update builds of
                    306:        the openssl libraries will fail. A make cleandir in
                    307:        external/bsd/openssl/lib is needed
                    308:
1.258     martin    309: 20141026:
1.259     msaitoh   310:        A mishap during the import of pppd may cause your corruption
1.258     martin    311:        in your cvs directory if you happened to do a cvs update
                    312:        during a short period of time. To fix, just remove the
                    313:        directory src/external/bsd/ppp/dist/pppd completely
                    314:        and let cvs restore it on next update.
                    315:
1.256     apb       316: 20140721:
                    317:        The src/external/mit/lua/src directory was accidentally created
                    318:        and then deleted in the CVS repository.  If you get errors like
                    319:
                    320:        cvs [update aborted]: cannot open directory
                    321:        /cvsroot/src/external/mit/lua/src: No such file or directory
                    322:
                    323:        then delete your local copy of that directory tree and try again.
                    324:
1.255     joerg     325: 20140530:
                    326:        ARM eABI switched to DWARF based exception handling. This requires
                    327:        rebuilding all C++ code. It is strongly advised to do a clean build.
                    328:
1.251     martin    329: 20140131:
1.253     joerg     330:        The new compiler_rt/libc integration moved a few things. It is strongly
1.254     skrll     331:        advised to do a clean build. At least lib/libc, the compat version(s)
1.253     joerg     332:        of libc, libkern, rump and the kernels need to be cleaned.
1.251     martin    333:
1.250     christos  334: 20131227:
                    335:        1. The new ntpd runs in a restricted mode to prevent amplification
                    336:           attacks. If you need ntpdc to work you need to explicitly enable
                    337:           mode7 in your config file. Make sure you put the necessary restrict
                    338:           statements to avoid being exposed.
                    339:        2. strncat has moved from lib/libc to common/lib/libc; you might need
                    340:           to make clean in libc
                    341:
1.249     mrg       342: 20131129:
                    343:        The GMP sources were updated, and builds will likely fail without
                    344:        cleaning their build trees for both tools and in-tree, like below.
                    345:
1.248     mrg       346: 20131128:
                    347:        The MPC and MPFR sources were updated, and builds may require their
                    348:        tools and in-tree directories cleaned for successful updates.
                    349:
1.246     martin    350: 20130605:
1.247     spz       351:        The kernel option FAST_IPSEC no longer exists, it's been renamed
                    352:        to IPSEC (and the older IPSEC version removed).
                    353:
                    354: 20130605:
1.246     martin    355:        Previous freetype installations eroneously installed private
                    356:        header files. If you are building against a non-empty $DESTDIR,
                    357:        please remove ${DESTDIR}//usr/X11R7/include/freetype2/freetype/.
                    358:
1.245     mrg       359: 20130531:
                    360:        The xdm update may cause build failure due to xdm.man being
                    361:        in the obj tree.  Make sure to ensure any like this:
                    362:                nbmake: nbmake: don't know how to make xdm.man. Stop
                    363:        is fixed by deleting the xdm.man in the obj tree.
                    364:
1.244     mrg       365: 20130530:
                    366:        Updates of many xsrc packages will leave old .pc files around.
                    367:        Best to clean out the xsrc objdir entirely before rebuilds.
                    368:
1.242     christos  369: 20130301:
                    370:        The removal of netiso requires manual removal of /usr/include/netiso
1.243     christos  371:        prior to the build and make cleandir in /usr/src/usr.bin/{ktruss,kdump}
1.242     christos  372:
1.238     dholland  373: 20120726:
1.241     wiz       374:        The update of OpenSSL requires cleaning both the OpenSSL build
                    375:        directory and DESTDIR.  *Even non-update builds require cleaning
1.240     dholland  376:        DESTDIR.* Builds done without taking these steps may fail, or in
1.241     wiz       377:        some cases may succeed and install broken OpenSSL libraries that
1.240     dholland  378:        cause third-party software to link incorrectly and/or crash.
1.238     dholland  379:
1.237     wiz       380: 20120507:
1.241     wiz       381:        The database schema for makemandb was changed.  You will
1.237     wiz       382:        need to update the database using 'makemandb -f' or wait
                    383:        for the next weekly run to fix it.
                    384:
1.236     bsh       385: 20120319:
                    386:        sys/conf/Makefile.kern.inc has been modified to adjust the
                    387:        size of db_symtab automatically.  You need to update dbsym in
                    388:        your $TOOLDIR to build kernels with options SYMTAB_SPACE.  If
                    389:        you don't want this behavior, add AUTO_SYMTAB_SPACE=no to your
                    390:        mk.conf.
                    391:
1.235     joerg     392: 20120216:
1.241     wiz       393:        Default for MKCATPAGES changed to NO.  Update builds will fail
                    394:        unless DESTDIR is cleaned manually.  If you built between 20120207
1.239     dholland  395:        and 20120216, daily and weekly could have created an unreadable
1.241     wiz       396:        /var/db/man.db index for apropos.  Running makemandb -f or
1.235     joerg     397:        the next run of weekly will fix it.
1.233     joerg     398:
1.232     christos  399: 20111227:
                    400:        If you built between 20111225 and 20111227 you need to remove
                    401:        /usr/lib/libpam.so.4* and /usr/lib/security/*.so.4, since the
                    402:        bump has been reverted.
                    403:
1.231     tls       404: 20111125:
                    405:        The "rnd" pseudodevice has been added to sys/conf/std, which
                    406:        means it should no longer be explicitly listed in kernel
                    407:        configuration files.  The line "pseudo-device rnd" should be
                    408:        removed from any custom kernel config files users may have.
                    409:
1.230     tls       410: 20111119:
                    411:        A problem with the datastructures used by the rndctl(8)
                    412:        utility (pointers in datastructures in an array, making 32->64
                    413:        bit compatibility very painful) has been fixed in a
                    414:        non-backwards-compatible way.  If you replace your kernel,
                    415:        replace your rndctl executable too.
1.241     wiz       416:
1.229     jym       417: 20111001:
                    418:        the prop_*_send_syscall() functions from proplib(3) have been
                    419:        changed and their new version is not backward compatible with the old
1.241     wiz       420:        one.  So ensure that all consumers of these functions (currently:
1.229     jym       421:        quota2 code and its tests) are updated together with the new lib.
                    422:
1.228     mrg       423: 20110817:
                    424:        sparc has been changed to use GCC 4.5.3, so any objdir or
                    425:        DESTDIR for them should be deleted before updating.
                    426:
1.227     riastrad  427: 20110806:
                    428:        i386 and amd64 have been changed to use GCC 4.5.3, so any
                    429:        objdir or DESTDIR for them should be deleted before updating.
                    430:
1.226     mrg       431: 20110805:
                    432:        The update to GCC 4.5.3 requires a non-trivial portion of
                    433:        the tree to be cleaned.  Best to delete both objdir and
                    434:        DESTDIR before running this update.  So far, only the
                    435:        sparc64, mips and powerpc platforms have changed.
                    436:
1.225     matt      437: 20110803:
1.241     wiz       438:        The layout of external/public-domain/xz has changed.  To do an
1.225     matt      439:        update build you will have to remove the contents of the OBJDIR
                    440:        for external/public-domain/xz/bin by hand as the xz entry there
                    441:        is now a directory.
                    442:
1.223     joerg     443: 20110410:
1.241     wiz       444:        The configuration of src/tools/gcc has changed.  To do an
1.224     dholland  445:        update build you have to clean both tools/binutils and
                    446:        tools/gcc by hand.
1.223     joerg     447:
1.222     plunky    448: 20110328:
                    449:        Building the Xorg binary was moved into a subdirectory to fix
1.241     wiz       450:        ordering issues with "make all".  It may be necessary to remove
1.222     plunky    451:        the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86
                    452:        if your update build fails, as the "Xorg" entry there is now a
                    453:        directory.
                    454:
1.220     joerg     455: 20110121:
1.221     lukem     456:        Assembler files no longer use -traditional-cpp.  This can break
1.220     joerg     457:        the build of individual parts of the tree.  This is handled
                    458:        correctly by build.sh.  Manual builds have to update /usr/share/mk
                    459:        and re-run config(1) for any kernel configurations as needed.
1.218     joerg     460:
1.217     jruoho    461: 20101217:
                    462:        The tcpdump(8) program was changed to drop privileges and chroot(2)
1.241     wiz       463:        by default.  It may be necessary to manually update passwd(5) and
1.217     jruoho    464:        group(5) in order to make the program work with existing setups.
                    465:
1.216     christos  466: 20101125:
                    467:        The latest changes to setenv(3) dissallow setting environment
1.241     wiz       468:        variables with names that contain '='.  Revision 1.18 of env.c
                    469:        assumed that this was allowed.  Installing a new libc with an
1.216     christos  470:        old copy of /usr/bin/env causes env x=1 printenv | grep x= to
                    471:        break which affects the autoconf tests for dependency finding,
                    472:        so building gcc will end up printing:
                    473:            checking dependency style of gcc... none
                    474:            configure: error: no usable dependency style found
                    475:        Fix it by rebuilding and re-installing env.
1.138     lukem     476:
1.215     mrg       477: 20101119:
                    478:        Recent Xorg updates in xsrc/external/mit/ may cause various build
                    479:        or run-time problems.  Delete your entire DESTDIR and OBJDIR if you
                    480:        have any build problems with xsrc, or problems with mismatched
                    481:        versions between xorg-server and drivers.
                    482:
1.213     jmmv      483: 20100604:
                    484:        The update of ATF to 0.9 causes old tests written in shell to fail
                    485:        unless they are rebuilt.  If you are building with MKUPDATE=yes,
                    486:        you need to clean the src/external/bsd/atf/tests/ and the src/tests/
                    487:        trees by hand.
                    488:
1.211     tnozaki   489: 20100522:
1.212     mrg       490:        Recent Xorg updates in xsrc/external/mit/ will cause various build
                    491:        problems.  Delete your entire DESTDIR and OBJDIR if you have any
                    492:        build problems with xsrc.
                    493:
                    494: 20100522:
1.211     tnozaki   495:        private section of <ctype.h> was splitted, and now mklocale(1)
1.214     dholland  496:        include ctype_local.h, so you have to make cleandir in tools/mklocale.
1.211     tnozaki   497:
1.210     christos  498: 20100520:
1.241     wiz       499:        The location of the xkb compiled descriptions has changed.  Please
1.210     christos  500:        remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR.
                    501:
1.209     njoly     502: 20100222:
                    503:        The shared objects file extension has been changed from .so to
                    504:        .pico, in order to avoid conflicts with shared libraries names
                    505:        libXX.so.  All now stale regular .so files can be removed from
                    506:        your object directories.
                    507:
1.208     roy       508: 20100204:
                    509:        The termcap database has been removed from the sources,
                    510:        but has not been marked obsolete so it is not removed
                    511:        from the system when upgrading.
                    512:        As such, you will need to remove them from your object
                    513:        and destination directories.
                    514:
1.203     dyoung    515: 20091101:
1.205     dholland  516:         After updating, it may be necessary to make the 'cleandir'
                    517:         target in src/tools/yacc/ and in src/usr.bin/yacc/ before a
                    518:         'build.sh -u tools' or 'build.sh -u distribution'.  Ditto
                    519:         src/tools/lex/ and src/usr.bin/lex/.
1.203     dyoung    520:
1.202     mrg       521: 20091001:
1.206     dholland  522:        On amd64 you must rebuild tools (to get the new binutils)
                    523:        before building a kernel, or the build fails on cpufunc.S.
                    524:
                    525: 20091001:
1.202     mrg       526:        An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb
                    527:        symlink, failing the build.  Delete the link, and the subdir
                    528:        it is in, and retry your build.
                    529:
1.201     dsl       530: 20090718:
                    531:        libc build changed so that strchr() provides the extra entry
1.241     wiz       532:        point for index().  Update build of libc.a (and libc_pic.a)
1.201     dsl       533:        may fail because the archive contains the unwanted index.o.
                    534:        (Similarly for strrchr() and rindex().)
                    535:
1.198     mrg       536: 20090709:
                    537:        Native Xorg was upgraded again.  Builds will probably fail again
                    538:        without a clean objdir, at least for src/external/mit/xorg.
                    539:
1.197     mrg       540: 20090616:
                    541:        Native Xorg was upgraded.  Builds will need a clean objdir for
                    542:        src/external/mit/xorg.  Upgrading a system from sets will not
                    543:        work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc
                    544:        subdirectory has been changed into a file, and this needs to
                    545:        be manually "rm -r"'ed before installing xbase.tgz.
                    546:
1.195     perry     547: 20090501:
                    548:        Several new functions were added to string.h/libc, and this
                    549:        can cause autoconf problems during the tool build for people
1.241     wiz       550:        who fail to clean out their tools objects properly.  If you
1.195     perry     551:        note messages about stpcpy, stpncpy or strnlen accompanying a
                    552:        failure during the tool build, clean out all your tools
                    553:        objects and start again.
                    554:
1.194     mrg       555: 20090325:
                    556:        The i386 port was switched to i486 default toolchain.  This requires
                    557:        cleaning your src/tools directory and $TOOLDIR and rebuilding them.
                    558:
1.192     skrll     559: 20090126:
1.241     wiz       560:        The __posix_fadvise50 system call changed assembly stub type.  You
1.207     mbalmer   561:        need to 'rm -f __posix_fadvise50.*' in the libc build directory
                    562:        to avoid using the old assembly stub.
1.192     skrll     563:
1.191     joerg     564: 20090202:
                    565:        pkg_install now depends on the pkgdb cache for automatic conflict
                    566:        detection.  It is recommented to rebuild the cache with
                    567:        ``pkg_admin rebuild''.
                    568:
1.184     christos  569: 20090110:
1.241     wiz       570:        time_t and dev_t have been bumped to 64 bit quantities.  To upgrade:
                    571:        1. Make sure your kernel has COMPAT_50 in it.  Build and install.
1.188     christos  572:           This is needed even in the MODULAR kernel because there is
                    573:           conditionally compiled code in rtsock.c.
1.184     christos  574:        2. make sure build.sh completes and the binaries in a chroot work
                    575:           before installing.
                    576:        3. If you don't use build.sh and you build directly to root, and
1.241     wiz       577:           your build breaks in the middle, don't despair.  Make sure headers
1.184     christos  578:           are installed properly, and start building libraries first libc
                    579:           and libutil, install them and then continue building all the
1.241     wiz       580:           libraries in src/lib and src/gnu/lib and install them.  Once
1.184     christos  581:           the new libraries are installed, you can restart the build.
                    582:        4. If you compile packages and you notice link time warnings,
1.189     hubertf   583:           rebuild the required packages to update their shared libraries.
                    584:           Any package you rebuild will require rebuilding all the packages
                    585:           that depend on it.
1.186     christos  586:        5. Next time you run pwd_mkdb with the new binary, the file
                    587:           will be upgraded and it will not be backwards compatible.
1.190     apb       588:        6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
                    589:           lastlogx(5)) have been versioned, and there is a heuristic
1.241     wiz       590:           for utmp.  You are better off removing the old files after
1.190     apb       591:           upgrading.  The automated clearing of /var/run during
                    592:           boot, and the automated rotating of files in /var/log by
                    593:           newsyslog(8), may mean that you do not have to remove the
                    594:           files manually.
                    595:        7. The optional accounting file (/var/account/acct, see
                    596:           accton(8)) has not been versioned, and will need to be
                    597:           removed.  The automatic rotation of the accounting file by
                    598:           /etc/daily limits the bad consequences of failure to remove
                    599:           the file.
1.196     dholland  600:        8. Application software that writes time_t to binary files on
1.241     wiz       601:           disk will break or need attention.  Most notably: if you are
1.196     dholland  602:           using PostgreSQL < 8.4, you need to dump your databases,
                    603:           rebuild PostgreSQL with the new time_t, then restore.
1.185     jmcneill  604:
1.183     pgoyette  605: 20081219:
                    606:        config(1) has been updated, and one of the files it creates -
                    607:        swapnetbsd.o - has changed format.  You need to rebuild config
                    608:        (done automatically by build.sh) and then you need to rerun
                    609:        config on all kernel configuration files before rebuilding those
                    610:        kernels.
                    611:
1.181     cube      612: 20081205:
                    613:        If you build with MKX11=no, you should remove /etc/rc.d/xdm and
                    614:        /etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
                    615:        set and will appear as extra files for MKX11=no update builds.
1.178     lukem     616:
1.179     tsutsui   617: 20081122:
1.182     tsutsui   618:        On i386, various kernel options(4) in GENERIC including
1.180     wiz       619:        file systems have been disabled and moved into kernel modules.
                    620:        Before trying a new GENERIC kernel, you have to prepare the
1.179     tsutsui   621:        following files as well as a new GENERIC kernel:
                    622:
                    623:        - build and install kernel modules from src/sys/modules
                    624:
                    625:        - install the latest bootloader, which will load a module
1.180     wiz       626:          for the file system from which the kernel is loaded automatically
1.179     tsutsui   627:
1.180     wiz       628:        If you have to load your kernel from a file system which is not of
                    629:        the same type as the root file system, you have to load the necessary
                    630:        file system module manually on the boot prompt or in the boot.cfg file.
1.179     tsutsui   631:
1.178     lukem     632: 20080827:
                    633:        If you built and installed a libc from sources between
                    634:        2008/08/20 and 2008/08/26 you got a broken strtouq(3)
                    635:        which results in false errors reported by lint(1).
                    636:        Since this breaks the libc build itself, manual help is
1.180     wiz       637:        needed -- lint must be disabled temporarily, e.g.:
1.178     lukem     638:          $ (cd lib/libc && make MKLINT=no dependall install)
                    639:
1.177     christos  640: 20080813:
                    641:        MKDEBUG build was broken because the .depend files did not know
1.241     wiz       642:        about .go files.  You need to remove all .depend files and rebuild.
1.177     christos  643:
1.200     dholland  644: 20080802:
                    645:        A regression in binary compatibility for pthread_mutex_t has
1.241     wiz       646:        been fixed.  Unfortunately, the price is breaking compatibility
1.200     dholland  647:        for -current.
                    648:
                    649:        Threaded programs (using libpthread) and C++ programs (using
                    650:        libstdc++) compiled after 20070907 and before 20080802 need to
                    651:        be recompiled.
                    652:
                    653:        One way to find affected pkgsrc packages:
                    654:
                    655:          $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO
                    656:          $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO
                    657:
1.175     simonb    658: 20080731:
                    659:        WAPBL (metadata journaling support) has been added, but at this
                    660:        time isn't backwards compatible with pre-WAPBL aware kernels
                    661:        and userland (fsck_ffs in particular).  Please make sure you
                    662:        don't use a journaled filesystem with an older kernel/userland,
1.176     simonb    663:        especially an uncleanly mounted journaled filesystem.  WAPBL
                    664:        also requires the super block to be in the UFS2 format.  You
                    665:        can use fsck_ffs -c 4 to update the superblock format.
1.175     simonb    666:
1.174     lukem     667: 20080721:
                    668:        Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
                    669:        isn't defined.
                    670:
1.173     freza     671: 20080531:
1.241     wiz       672:        The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
                    673:        from 125 (conflicted with DRVCTLCOMMAND) to 129.  The drvctl(8)
1.173     freza     674:        utility needs to be rebuilt and reinstalled as older binaries
1.241     wiz       675:        won't work correctly.  The following sequence of commands:
1.173     freza     676:
                    677:          $ (cd sys/sys/ && nbmake-$arch includes)
                    678:          $ (cd sbin/drvctl/ && nbmake-$arch clean)
                    679:          $ (cd sbin/drvctl/ && nbmake-$arch all)
                    680:
                    681:        leaves new drvctl utility in sbin/drvctl build directory.
                    682:
1.172     lukem     683: 20080503:
                    684:        The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
                    685:
1.171     he        686: 20080521:
                    687:        For a while, unprivileged UPDATE builds would fail to
                    688:        succeed at the checkflist stage, complaining that
                    689:        ${DESTDIR}/stand/<arch>/ did not exist.  A fix for this
                    690:        problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
                    691:        If you already hit this problem, update the .mk file,
                    692:        remove ${DESTDIR}/stand/<arch>, and re-run the build.
                    693:
1.174     lukem     694: 20080303:
                    695:        Linker warnings are now fatal if $WARNS>0.
                    696:
1.170     christos  697: 20080126:
                    698:        The posix_fadvise system call has been changed from an assembly
1.241     wiz       699:        stub, to a c file that calls an assembly stub.  You need to
1.170     christos  700:        'rm -f posix_fadvise.* .depend' in the libc build directory to
                    701:        avoid using the old assembly stub.
                    702:
1.168     joerg     703: 20071209:
1.241     wiz       704:        The acpiec(4) driver has been split into two attachments.  If you
1.168     joerg     705:        get ACPI errors before the attachment, please update your kernel
1.169     wiz       706:        configuration file appropriately or see GENERIC for more details.
1.168     joerg     707:
1.166     xtraeme   708: 20071115:
                    709:        The it(4) driver has been renamed to itesio(4) and the old port
                    710:        argument specified in the kernel configuration file is not valid
1.241     wiz       711:        anymore.  The itesio(4) driver now uses the Super I/O address port
                    712:        rather than the EC address port.  Please update your kernel
1.167     wiz       713:        configuration file appropriately or see GENERIC for more details.
1.166     xtraeme   714:
1.165     jmmv      715: 20071028:
                    716:        The pccons(4) driver has been removed from the NetBSD/shark port.
                    717:        You need to update any custom kernel configuration file you have
                    718:        to remove any references to pccons (which includes removing the
                    719:        now useless XSERVER option) and replace them with the correct
                    720:        entries for the wscons driver.  See the GENERIC configuration file
                    721:        for more details.
                    722:
1.164     gdt       723: 20070913:
                    724:        A latent bug in dhclient/dhcpd that caused it to be unable to
                    725:        enumerate interfaces was fixed.  The bug began to cause
                    726:        problems after 20070911 when the kernel's SIOCGIFCONF
                    727:        implementation was repaired.  From 20070529 to 20070911 racoon
                    728:        could not enumerate interfaces.  (These are noted because
                    729:        normal kernel/userspace version matching hygiene is not
                    730:        sufficient to avoid this problem.)  Ensure that both kernel
                    731:        and userland are from after 20070913.
                    732:
1.163     joerg     733: 20070703:
1.241     wiz       734:        nbinstall has been renamed ${MACHINE_GNU_ARCH}-install.  It
1.199     dholland  735:        calls the target-specific strip program, and the logic to pass
                    736:        down STRIP from make has been removed.  This requires a
                    737:        re-installation of tools.
1.163     joerg     738:
1.161     dsl       739: 20070422:
                    740:        The way OS emulations lookup filenames inside the emulation root
                    741:        has been changed.  Rather than modify the pathname (and copy back
                    742:        to userspace) namei() and lookup() directly check the emulation
1.241     wiz       743:        root.  One side effect is that absolute symlinks inside the emulated
1.167     wiz       744:        root file system will be relative to that file system - unless they
1.161     dsl       745:        start /../ this is useful when the emulated root is a real install
                    746:        that has such links.
                    747:        This might affect symlinks that have been added to reference outside
                    748:        the emulated root.
                    749:
1.160     jmcneill  750: 20070412:
1.241     wiz       751:        The pckbc driver on sgimips IP32 has been removed.  Use macekbc
                    752:        instead.  See the GENERIC32_IP3x kernel configuration for an
1.160     jmcneill  753:        example.
                    754:
1.159     gdt       755: 20070319:
                    756:         src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
                    757:         on many platforms due to incorrect flags settings.  If you
                    758:         updated and built after about 20070315, do "nbmake-$arch
                    759:        cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
                    760:        rebuild of object files that might have been built
                    761:        incorrectly, and ensure that you have at least
                    762:        src/lib/libc/Makefile 1.130.
                    763:
1.241     wiz       764: 20070210:
1.158     dbj       765:         src/sys/sys/{sa.h,savar.h} were removed.
                    766:           find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
                    767:               | xargs egrep -l '/sa.h|/savar.h' | xargs rm
                    768:         will allow dependencies on those files to get get rebuilt
                    769:
1.157     apb       770: 20070209:
                    771:         The threading model was changed when the newlock2 branch
                    772:         was merged to NetBSD-current.  If you boot with a new
                    773:         kernel (version 4.99.10), then you also need a new pthread
                    774:         library (/usr/lib/libpthread.so.0.7).  If you boot with
                    775:         an old kernel, then you need the old pthread library
                    776:         (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
                    777:         the pthread library in sync, old threaded applications should
                    778:         continue to work with an old or new kernel.  Note that named(8)
                    779:        is the only threaded application in the base system.
                    780:
1.154     he        781: 20061214:
                    782:        Following the move of string_to_flags() and flags_to_string()
                    783:        from the bin/ls/ sources to libutil, users doing UPDATE builds
                    784:        will need to do a "make cleandir" in
                    785:                tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
                    786:                bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
1.156     he        787:                usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
                    788:                as the installation images in distrib/
1.154     he        789:        in order to excise stale references to the old stat_flags.h header
                    790:        file in the ls sources -- stat_flags.h has been removed.
                    791:
1.152     christos  792: 20061108:
                    793:        The configure script used in the src/tools/gcc compiler has been
                    794:        changed to indicate that our libc has ssp support built-in and
1.241     wiz       795:        does not depend on -lssp and -lssp-nonshared.  You'll need to
1.152     christos  796:        make clean in src/tools/gcc first to rebuild the compiler.
                    797:
1.151     rpaulo    798: 20061009:
                    799:        The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
1.241     wiz       800:        available.  Use net.inet{,6}.tcp{,6}.congctl.selected instead.
1.151     rpaulo    801:
1.150     bjh21     802: 20060814:
                    803:        The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
                    804:        withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
                    805:        kernel configuration for an example.  X servers from the last
                    806:        few years should cope.
                    807:
1.149     christos  808: 20060703:
1.241     wiz       809:        MPACPI is no more.  We always configure PCI interrupts using ACPI
                    810:        if we have an ACPI kernel.  The option MPACPI_SCANPCI has been renamed
                    811:        to ACPI_SCANPCI.  Thanks to work from fvdl.
1.149     christos  812:
1.148     dogcow    813: 20060627:
                    814:        socket(2) has changed, and its system call has been versioned.
                    815:        For userlands with the old version of socket(2), make sure that
                    816:        your kernel has 'options COMPAT_30' set, or else 'bad system call'
                    817:        errors will result.
                    818:
1.1       abs       819: Hints for a more successful build:
                    820: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.123     jmc       821:     Use build.sh, but do not use its "expert mode":
1.132     jmmv      822:        This will automatically build the tools in the
1.123     jmc       823:           correct order, and it will keep the tools and the
                    824:           new build products from interfering with the running
                    825:           system.  This will allow you to ignore most of the
                    826:           other advice in this file.
1.2       mrg       827:     Build a new kernel first:
                    828:        This makes sure that any new system calls or features
                    829:           expected by the new userland will be present.  This
                    830:           helps to avoid critical errors when upgrading.
1.1       abs       831:     Use object directories:
                    832:        This helps to keep stale object
                    833:           files from polluting the build if a Makefile "forgets"
                    834:           about one.  It also makes it easier to clean up after
                    835:           a build.  It's also necessary if you want to use the
                    836:           same source tree for multiple machines.
1.123     jmc       837:           To use object directories with build.sh:
                    838:            a) invoke build.sh with the "-M" or "-O" options.
                    839:           To use object directories without using build.sh:
1.1       abs       840:            a) cd /usr/src ; make cleandir
1.2       mrg       841:            b) Add "OBJMACHINE=yes" to /etc/mk.conf
                    842:            c) Add "MKOBJDIRS=yes" to /etc/mk.conf
1.1       abs       843:            d) cd /usr/src ; make build
1.2       mrg       844:           Note that running "make obj" in a directory will create
                    845:           in obj.$MACHINE directory.
1.1       abs       846:     Build to a DESTDIR:
1.123     jmc       847:        This helps to keep old installed files (especially libraries)
                    848:           from interfering with the new build.
                    849:           To build to a DESTDIR with build.sh, use the "-D" option.
                    850:           To build to a DESTDIR without using build.sh, set the DESTDIR
                    851:           environment variable before running make build.  It should be
                    852:           set to the pathname of an initially empty directory.
                    853:           Problems: if you do not use build.sh, you might need to
                    854:                update critical utilities without using DESTDIR since
                    855:                nothing is executed from what is installed in DESTDIR.
                    856:                (See critical utils, below.)
1.1       abs       857:     Build often:
                    858:        This keeps critical utilities current enough to not choke
                    859:        on any other part of the source tree that depends on up to
1.123     jmc       860:        date functionality.  If you use build.sh, you should not have
                    861:        this problem.
1.241     wiz       862:
1.1       abs       863: What to do if things don't work:
                    864: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1.230     tls       865: When things don't work there are usually a few things that commonly
1.1       abs       866: should be done.
                    867:     1) make includes
                    868:        This should be done automatically by make build.
                    869:     2)  cd share/mk && make install
                    870:        Again, automatically done by make build.
                    871:
                    872: Failsafe rebuild of a small part of the tree:
                    873: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    874: To make sure you rebuild something correctly you want to do
                    875: something like the following:
                    876:     1)  Make sure the includes and .mk files are up to date.
                    877:     2)  Make sure any program used to build the particular
                    878:        utility is up to date.  (yacc, lex, etc...)
                    879:     3)  cd ...path/to/util...
                    880:        make cleandir
                    881:        rm ...all obj directories...
                    882:        make cleandir                   # yes, again
                    883:        make obj
                    884:        make depend && make
                    885:
                    886: Failsafe rebuild of the entire tree:
                    887: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    888: If you really want to make sure the source tree is clean and
1.2       mrg       889: ready for a build try the following.  Note that sourcing /etc/mk.conf
                    890: (a make(1) Makefile) in this manner is not right, and will not work
                    891: for anyone who uses any make(1) features in /etc/mk.conf.
1.1       abs       892:
                    893: ---cut here---
                    894: #!/bin/sh
                    895: . /etc/mk.conf
                    896:
1.58      lukem     897: if [ -z $NETBSDSRCDIR ] ; then
                    898:     NETBSDSRCDIR=/usr/src
1.1       abs       899: fi
1.58      lukem     900: if [ \! -d $NETBSDSRCDIR ] ; then
1.1       abs       901:     echo Unable to find sources
                    902:     exit 1
                    903: fi
1.58      lukem     904: find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
1.1       abs       905:
                    906: if [ -z $BSDOBJDIR ] ; then
                    907:     BSDOBJDIR=/usr/obj
                    908: fi
                    909: if [ -d $BSDOBJDIR ] ; then
                    910:     rm -rf $BSDOBJDIR
                    911: fi
                    912:
1.58      lukem     913: cd $NETBSDSRCDIR && make cleandir
1.1       abs       914:
                    915: ---cut here---
                    916:
                    917: Critical utilities:
                    918: ^^^^^^^^^^^^^^^^^^^
1.3       itojun    919:        usr.bin/compile_et
1.1       abs       920:        usr.bin/make
                    921:        usr.bin/yacc
                    922:        usr.bin/lex
1.11      lukem     923:        usr.bin/xlint
1.142     drochner  924:        usr.bin/config
1.1       abs       925:
1.34      simonb    926: Other problems and possible solutions:
1.1       abs       927: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                    928: Symptom:Complaints involving a Makefile.
1.17      erh       929: Fix:   Rebuild usr.bin/make:
                    930:        cd usr.bin/make && make && make install
1.111     simonb    931:        Or, a failsafe method if that doesn't work:
1.17      erh       932:        cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
                    933:
1.1       abs       934: Fix:   Make sure .mk files are up to date.
                    935:        cd share/mk && make install
1.2       mrg       936:
                    937: Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
1.142     drochner  938: Fix:   Rebuild usr.bin/config
1.1       abs       939:
                    940: Symptom:
                    941: Fix:   Rebuild usr.bin/yacc
                    942:
                    943: Symptom:
                    944: Fix:   Rebuild usr.bin/lex
                    945:
                    946: Symptom:
                    947: Fix:   rm /usr/lib/libbfd.a
1.4       itojun    948:
                    949: Symptom:Obsolete intermediate files are used during compilation
                    950: Fix:   Try the following sequence of commands in the directory in question.
                    951:        make cleandir; rm `make print-objdir`; make cleandir; make obj
                    952:        (If you built the tree without "make obj" in the past, obsolete files
                    953:        may remain.  The command tries to clean everything up)
1.5       wiz       954:
1.207     mbalmer   955: Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
                    956:        pointer type
1.5       wiz       957: Fix:   Rebuild and install usr.bin/menuc
1.12      itojun    958:
                    959: Symptom:mklocale not found during build in share/locale/ctype
                    960: Fix:   Build and install usr.bin/mklocale
1.13      dogcow    961:
1.86      kleink    962: Symptom:undefined reference to `__assert13' or `__unsetenv13'
1.13      dogcow    963: Fix:    Rebuild and install lib/libc
                    964:
1.142     drochner  965: Symptom:usr.bin/config fails to build.
1.19      cgd       966: Fix:   Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
1.13      dogcow    967:
1.19      cgd       968: Symptom:undefined reference to `getprogname' or `setprogname'
                    969: Fix:    Rebuild and install lib/libc
1.24      abs       970:
                    971: Symptom:lint does not understand the '-X' option
                    972: Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint
1.223     joerg     973:
                    974: Symptom:Update build fails in src/tools/gcc complaining that a variable
                    975:        (e.g. CPPFLAGS) has changed since the previous run.
                    976: Fix:    Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
1.257     apb       977:
                    978: Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...:
                    979:        No such file or directory.
                    980: Cause: If a directory is created by mistake, then it is sometimes
                    981:        deleted from the CVS repository using administrative commands
                    982:        that bypass the normal cvs access controls.  If your cvs working tree
                    983:        contains references to a directory that has been deleted on the
                    984:        server in this way, then "cvs update" reports this error.
                    985: Fix:   Recursively delete the affected directory from your working tree
                    986:        and try the update again.

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