UPDATING revision 1.382 1 $NetBSD: UPDATING,v 1.382 2025/07/21 06:10:29 mrg Exp $
2
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.
6
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 Sections are marked with "^^^^^". After the section on "Recent changes"
15 are several sections containing more general information.
16
17 See also: BUILDING, build.sh, Makefile.
18
19 Recent changes:
20 ^^^^^^^^^^^^^^^
21
22 20250721:
23 GCC 12.5 was imported and there may be weird build issues.
24 Clean any GCC build dirs if you encounter weird things.
25
26 20250528:
27 Changes in the tools build require removing all config.cache
28 files in the object tools directories.
29
30 20250427:
31 The KERNEL_DIR option to build.sh is now functional. Set it
32 with ``-V KERNEL_DIR=yes'' on your build.sh command.
33 With this, you can now colocate kernel and associated modules
34 in /netbsd/{kernel,kernel.dbg,modules} instead of having the
35 kernel in / but modules in /stand.
36
37 Note that you'll need new bootstrap code to use this feature.
38
39 This completes work begun many years ago by christos@ :-)
40
41 20250413:
42 A change to bsd.lib.mk requires a clean build of all libraries.
43
44 20250131:
45 The switch to the new jemalloc requires cleaning in libc.
46
47 20241122:
48 Changes to various libraries' build options require cleaning
49 their objdirs in update builds:
50
51 cd external/bsd/file/lib && $TOOLDIR/bin/nbmake-$ARCH clean
52 cd external/bsd/libarchive/lib && $TOOLDIR/bin/nbmake-$ARCH clean
53 cd external/public-domain/xz/lib && $TOOLDIR/bin/nbmake-$ARCH clean
54
55 Also, for architectures with MKCOMPAT, it is necessary to clean
56 the compat objdirs too. The easiest way is:
57
58 rm -rf OBJDIR/compat/*/*/external/bsd/file/lib
59 rm -rf OBJDIR/compat/*/*/external/bsd/libarchive/lib
60 rm -rf OBJDIR/compat/*/*/external/public-domain/xz/lib
61
62 Changes to bsd.lib.mk to improve detecting differences in
63 shared library symbol exports may cause some .actsym files in
64 the objdir to become stale in update builds.
65
66 To work around this, delete all files matching `*.actsym' in
67 the objdir. For example:
68
69 find OBJDIR -name '*.actsym' -type f -print0 | xargs -0 rm
70
71 20241104:
72 Changes around the integration of the zstd compression
73 library may require manual deletion of some object directories
74 if you update from a build from a few days ago:
75 rm -rf DESTDIR/usr/lib/*/libarchive*
76 rm -rf DESTDIR/usr/lib/*/libmagic*
77 rm -rf DESTDIR/usr/lib/*/libzstd*
78 rm -rf DESTDIR/usr/lib/libarchive*
79 rm -rf DESTDIR/usr/lib/libmagic*
80 rm -rf DESTDIR/usr/lib/libzstd*
81 rm -rf OBJDIR/compat/*/*/external/bsd/file/
82 rm -rf OBJDIR/compat/*/*/external/bsd/libarchive/
83 rm -rf OBJDIR/compat/*/*/external/bsd/zstd/
84 rm -rf OBJDIR/external/bsd/file/
85 rm -rf OBJDIR/external/bsd/libarchive/
86 rm -rf OBJDIR/external/bsd/zstd/
87 rm -rf OBJDIR/external/gpl3/gcc/
88 rm -rf OBJDIR/tools/gcc/
89
90 20240926:
91 Building -current when running on amd64 from about 20240924
92 to about 20240926 will not work due to a "malloc_np.h"
93 error. Please downgrade to a version from 20240924 or older,
94 or upgrade to a newer version e.g. using a binary release from
95 the NetBSD build servers.
96
97 20240923:
98 Update builds will require cleaning the object directories for
99 jemalloc (like: "rm -rf $OBJ/external/bsd/jemalloc*") and the
100 libc dependency files (like: "rm $OBJ/lib/libc/jemalloc.*").
101 On architectures with COMPAT libs, those also have to be cleaned,
102 e.g. on sparc64: "rm -rf $OBJ/compat/sparc64/sparc/external/bsd/jemalloc*"
103 and "rm $OBJ/compat/sparc64/sparc/lib/libc/jemalloc.*".
104
105 20240920:
106 Update builds will require cleaning in src/external/historical/nawk/bin
107 in order to remove the awk subdirectory since there is now a binary
108 called awk.
109
110 20240817:
111 Update builds will require cleaning in src/external/historical/nawk/bin
112 in order to remove the awk binary since now there is a subdirectory
113 called awk.
114
115 20240812:
116 Update builds will require removing the tools objdir for gdb
117 if building with MKCROSSGDB=yes. All architectures use gdb.old
118 now.
119
120 20240630:
121 Update builds will require removing the tools objdir for binutils
122 (as most architectures should use binutils.old now).
123
124 20240610:
125 Update builds are likely to require removing the objdir for
126 distrib/<arch>/cdroms - or at least references to libarchive
127 from within there after the recent libarchive update.
128
129 20240504:
130 Update builds on x86 require making the `cleandir' target in
131 lib/libm, or deleting the objdir for lib/libm.
132
133 20240423:
134 Update builds with x11 may fail after switching to Mesa 21.
135
136 20240410:
137 Update builds may require manually deleting
138 $DESTDIR/var/run/named (and, potentially,
139 $DESTDIR/var/run/lwresd) in order to avoid checkflist failure.
140
141 20240409:
142 32-bit compatibility libraries were moved into the base32
143 and debug32 sets. HTML man pages were moved into the manhtml set.
144
145 20230828:
146 If:
147 - you updated to current and ran postinstall between 20230826
148 and 20230828 inclusive, and
149 - you are not using anything outside the base system to
150 populate /etc/openssl/certs (e.g., manually adding
151 certificates or using ca-certificates or mozilla-rootcerts or
152 mozilla-rootcerts-openssl from pkgsrc),
153 delete /etc/openssl/certs and rerun postinstall or just
154 `certctl rehash'.
155
156 Otherwise, certctl(8) will think someone else has left
157 /etc/openssl/certs in the way and will avoid clobbering it on
158 upgrade from older NetBSD.
159
160 20230718:
161 build.sh will use mk.conf in the same directory as build.sh instead
162 of /etc/mk.conf, unless MAKECONF is already defined in the environment.
163
164 20230714:
165 Import of gcc 10.5 requires a clean build of at least tools/gcc
166 and external/gpl3/gcc* object directories. An update build
167 without cleaning will result in obscure failures in rare corner
168 cases.
169
170 20230604:
171 Building native kernels with the installed make(1) instead of
172 the $TOOLDIR/bin/nbmake-${arch} wrapper will fail if userland
173 has not been updated. Note that this is an unsupported build
174 configuration (but usually works if userland is -current enough).
175
176 20230523:
177 ctfmerge was fixed as macOS host tool. This may require a clean tools
178 rebuild to detect the update to tools/compat/configure.
179
180 20230515:
181 New openssl build requires removal of the crypto/external/bsd/openssl
182 and tests/crypto/libcrypto subdirectories in the ${OBJDIR} hierarchy.
183 Otherwise test results may be wrong due to wrong "golden" output
184 files being installed.
185
186 20230322:
187 Fixes for moved /lib/libisns* mean that builds will complain about
188 ./usr/lib/libisns* being missing until src/lib/libisns is forced
189 to (re)install the files, including the symlinks. The simplest
190 way is to clean this subdir before building.
191
192 20230112:
193 New binutils require an updated ld.elf_so. If you are doing
194 (unsupported) in-place self builds (with the -E flag to build.sh),
195 make sure to have installed latest ld.elf_so before you rebuild
196 userland.
197
198 20221116:
199 The addition to NetBSD's version of UFS2 of support for extended
200 attributes broke backward compatibility with previous releases
201 of NetBSD, so UFS2 has been restored to being compatible with
202 previous NetBSD releases by disabling extended attributes.
203 (Note that ACLs are implemented as extended attributes, so
204 this changes disables ACLs as well.)
205
206 Support for UFS2 with extended attributes is now available in a new
207 UFS variant called UFS2ea. If you have created extended attributes
208 in an original UFS2 file system then "fsck -p" will now fail due to
209 the unexpected presence of extended attributes and "fsck -y" will
210 remove all extended attributes. If you wish to preserve extended
211 attributes rather than delete them, there is a utility to convert
212 a UFS2 file system to UFS2ea and leave extended attributes in place,
213 but this should be used with caution since it will preserve any
214 extended attributes that have been corrupted by the backward
215 incompatibility too.
216
217 If you wish to use a UFS2ea file system as your root file system,
218 then you will need to update your boot loader to a version that
219 supports UFS2ea.
220
221 For more information, see:
222 https://wiki.netbsd.org/features/UFS2ea
223
224 20221111:
225 The new libdrm import worsened the conflict issues for the
226 kdump/ktruss ioctl, and i915 now conflicts with base, and has
227 been turned off. This will cause update build issues like:
228
229 kdump-ioctl.c:12175:143: error: 'DRM_IOCTL_I915_DESTROY_HEAP'
230 undeclared here (not in a function);
231 did you mean 'DRM_IOCTL_MODE_DESTROY_DUMB'?
232
233 You'll need to clean usr.bin/ktruss, usr.bin/kdump, and rescue.
234
235 20220921:
236 Since the kernel version was bumped to 9.99.100, the bootloader
237 must be updated on x86 or EFI boot platforms in order to load
238 modules from boot.cfg(5) or interactively at the bootloader
239 prompt.
240
241 The kernel can still load modules at runtime, with modload(8)
242 or modules.conf(5), with no bootloader update. This will not
243 affect release branches because it only applies to patch
244 numbers >=100.
245
246 On x86 (i386 or amd64) with BIOS boot, this requires copying a
247 new /usr/mdec/boot to /boot. You can build this in the destdir
248 by running `$TOOLDIR/bin/nbmake-$ARCH dependall install' in
249 sys/arch/i386/stand.
250
251 On platforms with EFI boot (including x86 with EFI boot), this
252 requires copying a new /usr/mdec/boot*.efi to the EFI/BOOT/
253 directory on the EFI system partition. The boot*.efi file is:
254
255 aarch64 bootaa64.efi
256 amd64 bootx64.efi
257 arm bootarm.efi (32-bit arm)
258 i386 bootx32.efi
259
260 You can build this in the destdir by running
261 `$TOOLDIR/bin/nbmake-$ARCH dependall install' in
262 sys/stand/efiboot/boot*.
263
264 20220821:
265 Support for building extsrc/ has been deprecated.
266 EXTSRCSRCDIR and MKEXTSRC have been deprecated.
267
268 20220714:
269 Updates to xorg-server and associated drivers may cause builds to
270 fail. Cleaning both DESTDIR and the xorg build tree may be needed.
271
272 20220628:
273 Changes in the build of src/games/robots require a clean build
274 of that program.
275
276 20211116:
277 Changes in the xorg build require clean obj dirs for external/mit/xorg
278 (or a full clean/non-update build).
279
280 20211112:
281 Device tree sources were updated for evbarm. Some device nodes
282 (in particular, ld(4) devices on the ROCKPro64) will be renumbered.
283
284 20211014:
285 MKPIE default for aarch64 has changed, a clean build is required.
286
287 20210917:
288 Changed MNT_ACLS to default to POSIX1e ACLs instead of NFSv4
289 ACLs, to be compatible with FreeBSD. If you are using NFSv4 ACLs
290 and have "acls" in /etc/fstab you'll need to change it to "nfs4acls".
291
292 20210711:
293 Updated GMP sources may require cleaning in tools/gmp and/or in
294 external/lgpl3/gmp/lib, particularly if GCC itself does not build.
295
296 20210417:
297 GCC 10 was enabled for several platforms. If builds fail in either
298 tools/gcc or external/gpl3/gcc, first try cleaning those objects and
299 removing the $DESTDIR/usr/include/g++ subdirectory.
300
301 20201016:
302 MIPS kernel modules have been disabled until they work. This will
303 turn up in extra files in the DESTDIR, which should be cleaned.
304
305 20200925:
306 GNU MPC and MPFR have been updated. At least MPFR needs cleaning
307 in both the tools and external dirs.
308
309 20200912:
310 GCC 9 has arrived for Arm and x86 platforms, and will be coming
311 for several more, as will binutils 2.34. Clean as required.
312
313 20200907:
314 GCC 9 is coming, and binutils has been updated for MIPS. This
315 probably requires cleaning the tools/binutils.
316
317 20200811:
318 GCC updates may require cleaning the objdir. This may occur
319 due to GCC 7.5 update, GCC 8.4 move to gcc.old, or the upcoming
320 GCC 9 upgrade.
321
322 20200614:
323 blacklist* has been renamed to blocklist*. postinstall(8)
324 should handle the migration.
325
326 20200601:
327 Due to a mistake in LIBISPRIVATE handling, .so libraries were
328 created in the build directories and need cleaning.
329
330 20200311:
331 GCC 8 ports will need cleaning in src/tools/gcc and
332 src/external/gpl3/gcc due to GCC 8.4 update.
333
334 20191118:
335 More architectures were switched to gcc8:
336 i386, ia64 powerpc64, sparc, sparc64, arm
337 The same comments as in 20191022 apply.
338
339 20191112:
340 The LLVM update requires a clean rebuild for all architectures using
341 LLVM during the tools build phase (i386, amd64, aarch64).
342
343 20191022:
344 Ports amd64 and aarch64 switched to GCC 8.3 by default.
345 In-place ("expert mode", build.sh -E) builds are not supported
346 when going from a GCC 7 userland to GCC 8. Do a regular
347 build to a different DESTDIR (or preferably: build.sh -U) at least
348 once and install sets, or download comp.{tar.xz,tgz} from the
349 daily builds and install that before doing the next in-place build.
350
351 20191001:
352 GCC 8.3 was imported. Builds of src/tools/gcc may fail if
353 old builds with GCC 7 output now uses GCC 8. Clean this
354 directory, and also clean src/external/gpl3/gcc.
355
356 20190903:
357 Files with names that coincide with existing files' names on
358 case-insensitive file systems were inadvertently committed, for
359 radeon GPU firmware. We cannot mark these as obsolete for
360 postinstall to fix, so if you updated src since 2019-08-26, and
361 ran build.sh distribution or ran build.sh release, you must
362 manually delete the following files in your DESTDIR (which is
363 usually $OBJDIR/destir.$ARCH), or from / if you have installed
364 them:
365
366 /libdata/firmware/radeon/bonaire_ce.bin
367 /libdata/firmware/radeon/bonaire_mc.bin
368 /libdata/firmware/radeon/bonaire_me.bin
369 /libdata/firmware/radeon/bonaire_mec.bin
370 /libdata/firmware/radeon/bonaire_pfp.bin
371 /libdata/firmware/radeon/bonaire_rlc.bin
372 /libdata/firmware/radeon/bonaire_sdma.bin
373 /libdata/firmware/radeon/bonaire_smc.bin
374 /libdata/firmware/radeon/bonaire_uvd.bin
375 /libdata/firmware/radeon/hainan_ce.bin
376 /libdata/firmware/radeon/hainan_mc.bin
377 /libdata/firmware/radeon/hainan_me.bin
378 /libdata/firmware/radeon/hainan_pfp.bin
379 /libdata/firmware/radeon/hainan_rlc.bin
380 /libdata/firmware/radeon/hainan_smc.bin
381 /libdata/firmware/radeon/hawaii_ce.bin
382 /libdata/firmware/radeon/hawaii_mc.bin
383 /libdata/firmware/radeon/hawaii_me.bin
384 /libdata/firmware/radeon/hawaii_mec.bin
385 /libdata/firmware/radeon/hawaii_pfp.bin
386 /libdata/firmware/radeon/hawaii_rlc.bin
387 /libdata/firmware/radeon/hawaii_sdma.bin
388 /libdata/firmware/radeon/hawaii_smc.bin
389 /libdata/firmware/radeon/kabini_ce.bin
390 /libdata/firmware/radeon/kabini_me.bin
391 /libdata/firmware/radeon/kabini_mec.bin
392 /libdata/firmware/radeon/kabini_pfp.bin
393 /libdata/firmware/radeon/kabini_rlc.bin
394 /libdata/firmware/radeon/kabini_sdma.bin
395 /libdata/firmware/radeon/kaveri_ce.bin
396 /libdata/firmware/radeon/kaveri_me.bin
397 /libdata/firmware/radeon/kaveri_mec.bin
398 /libdata/firmware/radeon/kaveri_mec2.bin
399 /libdata/firmware/radeon/kaveri_pfp.bin
400 /libdata/firmware/radeon/kaveri_rlc.bin
401 /libdata/firmware/radeon/kaveri_sdma.bin
402 /libdata/firmware/radeon/mullins_ce.bin
403 /libdata/firmware/radeon/mullins_me.bin
404 /libdata/firmware/radeon/mullins_mec.bin
405 /libdata/firmware/radeon/mullins_pfp.bin
406 /libdata/firmware/radeon/mullins_rlc.bin
407 /libdata/firmware/radeon/mullins_sdma.bin
408 /libdata/firmware/radeon/oland_ce.bin
409 /libdata/firmware/radeon/oland_mc.bin
410 /libdata/firmware/radeon/oland_me.bin
411 /libdata/firmware/radeon/oland_pfp.bin
412 /libdata/firmware/radeon/oland_rlc.bin
413 /libdata/firmware/radeon/oland_smc.bin
414 /libdata/firmware/radeon/pitcairn_ce.bin
415 /libdata/firmware/radeon/pitcairn_mc.bin
416 /libdata/firmware/radeon/pitcairn_me.bin
417 /libdata/firmware/radeon/pitcairn_pfp.bin
418 /libdata/firmware/radeon/pitcairn_rlc.bin
419 /libdata/firmware/radeon/pitcairn_smc.bin
420 /libdata/firmware/radeon/tahiti_ce.bin
421 /libdata/firmware/radeon/tahiti_mc.bin
422 /libdata/firmware/radeon/tahiti_me.bin
423 /libdata/firmware/radeon/tahiti_pfp.bin
424 /libdata/firmware/radeon/tahiti_rlc.bin
425 /libdata/firmware/radeon/tahiti_smc.bin
426 /libdata/firmware/radeon/verde_ce.bin
427 /libdata/firmware/radeon/verde_mc.bin
428 /libdata/firmware/radeon/verde_me.bin
429 /libdata/firmware/radeon/verde_pfp.bin
430 /libdata/firmware/radeon/verde_rlc.bin
431 /libdata/firmware/radeon/verde_smc.bin
432
433 We will re-import these radeon firmware images another way
434 later.
435
436 20190727:
437 The uefi bootloader has gained tftp support and needs a clean
438 build. If you do update builds, manually clean its object
439 directory by something like:
440 cd sys/arch/i386/stand/efiboot && make clean
441
442 20190723:
443 The jemalloc allocator in libc is now built without extended
444 debugging (for performance reasons). In update builds make sure
445 to rebuild it completely, by removing all affected object files,
446 including compat builds, something like:
447 cd /usr/obj && find . -type d -name jemalloc|xargs rm -rf
448
449 20190207:
450 GCC 7 switched for many ports. Update builds are likely to fail.
451
452 Hints for a more successful build:
453 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
454 Use build.sh, but do not use its "expert mode":
455 This will automatically build the tools in the
456 correct order, and it will keep the tools and the
457 new build products from interfering with the running
458 system. This will allow you to ignore most of the
459 other advice in this file.
460 Build a new kernel first:
461 This makes sure that any new system calls or features
462 expected by the new userland will be present. This
463 helps to avoid critical errors when upgrading.
464 Use object directories:
465 This helps to keep stale object
466 files from polluting the build if a Makefile "forgets"
467 about one. It also makes it easier to clean up after
468 a build. It's also necessary if you want to use the
469 same source tree for multiple machines.
470 To use object directories with build.sh:
471 a) invoke build.sh with the "-M" or "-O" options.
472 To use object directories without using build.sh:
473 a) cd /usr/src ; make cleandir
474 b) Add "OBJMACHINE=yes" to /etc/mk.conf
475 c) Add "MKOBJDIRS=yes" to /etc/mk.conf
476 d) cd /usr/src ; make build
477 Note that running "make obj" in a directory will create
478 in obj.$MACHINE directory.
479 Build to a DESTDIR:
480 This helps to keep old installed files (especially libraries)
481 from interfering with the new build.
482 To build to a DESTDIR with build.sh, use the "-D" option.
483 To build to a DESTDIR without using build.sh, set the DESTDIR
484 environment variable before running make build. It should be
485 set to the pathname of an initially empty directory.
486 Problems: if you do not use build.sh, you might need to
487 update critical utilities without using DESTDIR since
488 nothing is executed from what is installed in DESTDIR.
489 (See critical utils, below.)
490 Build often:
491 This keeps critical utilities current enough to not choke
492 on any other part of the source tree that depends on up to
493 date functionality. If you use build.sh, you should not have
494 this problem.
495
496 What to do if things don't work:
497 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
498 When things don't work there are usually a few things that commonly
499 should be done.
500 1) make includes
501 This should be done automatically by make build.
502 2) cd share/mk && make install
503 Again, automatically done by make build.
504
505 Failsafe rebuild of a small part of the tree:
506 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
507 To make sure you rebuild something correctly you want to do
508 something like the following:
509 1) Make sure the includes and .mk files are up to date.
510 2) Make sure any program used to build the particular
511 utility is up to date. (yacc, lex, etc...)
512 3) cd ...path/to/util...
513 make cleandir
514 rm ...all obj directories...
515 make cleandir # yes, again
516 make obj
517 make depend && make
518
519 Failsafe rebuild of the entire tree:
520 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
521 If you really want to make sure the source tree is clean and
522 ready for a build try the following. Note that sourcing /etc/mk.conf
523 (a make(1) Makefile) in this manner is not right, and will not work
524 for anyone who uses any make(1) features in /etc/mk.conf.
525
526 ---cut here---
527 #!/bin/sh
528 . /etc/mk.conf
529
530 if [ -z $NETBSDSRCDIR ] ; then
531 NETBSDSRCDIR=/usr/src
532 fi
533 if [ \! -d $NETBSDSRCDIR ] ; then
534 echo Unable to find sources
535 exit 1
536 fi
537 find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
538
539 if [ -z $BSDOBJDIR ] ; then
540 BSDOBJDIR=/usr/obj
541 fi
542 if [ -d $BSDOBJDIR ] ; then
543 rm -rf $BSDOBJDIR
544 fi
545
546 cd $NETBSDSRCDIR && make cleandir
547
548 ---cut here---
549
550 Critical utilities:
551 ^^^^^^^^^^^^^^^^^^^
552 usr.bin/make
553 usr.bin/yacc
554 usr.bin/lex
555 usr.bin/xlint
556 usr.bin/config
557
558 Other problems and possible solutions:
559 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
560 Symptom:Complaints involving a Makefile.
561 Fix: Rebuild usr.bin/make:
562 cd usr.bin/make && make && make install
563 Or, a failsafe method if that doesn't work:
564 cd usr.bin/make && cc -DMAKE_NATIVE *.c -I. -o make \
565 && install make /usr/bin
566
567 Fix: Make sure .mk files are up to date.
568 cd share/mk && make install
569
570 Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
571 Fix: Rebuild usr.bin/config
572
573 Symptom:Obsolete intermediate files are used during compilation
574 Fix: Try the following sequence of commands in the directory in question.
575 make cleandir; rm `make print-objdir`; make cleandir; make obj
576 (If you built the tree without "make obj" in the past, obsolete files
577 may remain. The command tries to clean everything up)
578
579 Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
580 pointer type
581 Fix: Rebuild and install usr.bin/menuc
582
583 Symptom:mklocale not found during build in share/locale/ctype
584 Fix: Build and install usr.bin/mklocale
585
586 Symptom:undefined reference to `__assert13' or `__unsetenv13'
587 Fix: Rebuild and install lib/libc
588
589 Symptom:usr.bin/config fails to build.
590 Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
591
592 Symptom:undefined reference to `getprogname' or `setprogname'
593 Fix: Rebuild and install lib/libc
594
595 Symptom:Update build fails in src/tools/gcc complaining that a variable
596 (e.g. CPPFLAGS) has changed since the previous run.
597 Fix: Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
598
599 Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...:
600 No such file or directory.
601 Cause: If a directory is created by mistake, then it is sometimes
602 deleted from the CVS repository using administrative commands
603 that bypass the normal cvs access controls. If your cvs working tree
604 contains references to a directory that has been deleted on the
605 server in this way, then "cvs update" reports this error.
606 Fix: Recursively delete the affected directory from your working tree
607 and try the update again.
608