UPDATING revision 1.382
1$NetBSD: UPDATING,v 1.382 2025/07/21 06:10:29 mrg Exp $ 2 3This file (UPDATING) is intended to be a brief reference to recent 4changes that might cause problems in the build process, and a guide for 5what to do if something doesn't work. 6 7For a more detailed description of the recommended way to build NetBSD 8using build.sh, see the BUILDING file. 9 10Note that much of the advice in this UPDATING file was written before 11build.sh existed. Nevertheless, the advice here may be useful for 12working around specific problems with build.sh. 13 14Sections are marked with "^^^^^". After the section on "Recent changes" 15are several sections containing more general information. 16 17See also: BUILDING, build.sh, Makefile. 18 19Recent changes: 20^^^^^^^^^^^^^^^ 21 2220250721: 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 2620250528: 27 Changes in the tools build require removing all config.cache 28 files in the object tools directories. 29 3020250427: 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 4120250413: 42 A change to bsd.lib.mk requires a clean build of all libraries. 43 4420250131: 45 The switch to the new jemalloc requires cleaning in libc. 46 4720241122: 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 7120241104: 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 9020240926: 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 9720240923: 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 10520240920: 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 11020240817: 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 11520240812: 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 12020240630: 121 Update builds will require removing the tools objdir for binutils 122 (as most architectures should use binutils.old now). 123 12420240610: 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 12920240504: 130 Update builds on x86 require making the `cleandir' target in 131 lib/libm, or deleting the objdir for lib/libm. 132 13320240423: 134 Update builds with x11 may fail after switching to Mesa 21. 135 13620240410: 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 14120240409: 142 32-bit compatibility libraries were moved into the base32 143 and debug32 sets. HTML man pages were moved into the manhtml set. 144 14520230828: 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 16020230718: 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 16420230714: 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 17020230604: 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 17620230523: 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 18020230515: 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 18620230322: 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 19220230112: 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 19820221116: 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 22420221111: 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 23520220921: 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 26420220821: 265 Support for building extsrc/ has been deprecated. 266 EXTSRCSRCDIR and MKEXTSRC have been deprecated. 267 26820220714: 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 27220220628: 273 Changes in the build of src/games/robots require a clean build 274 of that program. 275 27620211116: 277 Changes in the xorg build require clean obj dirs for external/mit/xorg 278 (or a full clean/non-update build). 279 28020211112: 281 Device tree sources were updated for evbarm. Some device nodes 282 (in particular, ld(4) devices on the ROCKPro64) will be renumbered. 283 28420211014: 285 MKPIE default for aarch64 has changed, a clean build is required. 286 28720210917: 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 29220210711: 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 29620210417: 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 30120201016: 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 30520200925: 306 GNU MPC and MPFR have been updated. At least MPFR needs cleaning 307 in both the tools and external dirs. 308 30920200912: 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 31320200907: 314 GCC 9 is coming, and binutils has been updated for MIPS. This 315 probably requires cleaning the tools/binutils. 316 31720200811: 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 32220200614: 323 blacklist* has been renamed to blocklist*. postinstall(8) 324 should handle the migration. 325 32620200601: 327 Due to a mistake in LIBISPRIVATE handling, .so libraries were 328 created in the build directories and need cleaning. 329 33020200311: 331 GCC 8 ports will need cleaning in src/tools/gcc and 332 src/external/gpl3/gcc due to GCC 8.4 update. 333 33420191118: 335 More architectures were switched to gcc8: 336 i386, ia64 powerpc64, sparc, sparc64, arm 337 The same comments as in 20191022 apply. 338 33920191112: 340 The LLVM update requires a clean rebuild for all architectures using 341 LLVM during the tools build phase (i386, amd64, aarch64). 342 34320191022: 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 35120191001: 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 35620190903: 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 43620190727: 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 44220190723: 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 44920190207: 450 GCC 7 switched for many ports. Update builds are likely to fail. 451 452Hints 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 496What to do if things don't work: 497^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 498When things don't work there are usually a few things that commonly 499should 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 505Failsafe rebuild of a small part of the tree: 506^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 507To make sure you rebuild something correctly you want to do 508something 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 519Failsafe rebuild of the entire tree: 520^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 521If you really want to make sure the source tree is clean and 522ready 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 524for anyone who uses any make(1) features in /etc/mk.conf. 525 526---cut here--- 527#!/bin/sh 528. /etc/mk.conf 529 530if [ -z $NETBSDSRCDIR ] ; then 531 NETBSDSRCDIR=/usr/src 532fi 533if [ \! -d $NETBSDSRCDIR ] ; then 534 echo Unable to find sources 535 exit 1 536fi 537find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \; 538 539if [ -z $BSDOBJDIR ] ; then 540 BSDOBJDIR=/usr/obj 541fi 542if [ -d $BSDOBJDIR ] ; then 543 rm -rf $BSDOBJDIR 544fi 545 546cd $NETBSDSRCDIR && make cleandir 547 548---cut here--- 549 550Critical utilities: 551^^^^^^^^^^^^^^^^^^^ 552 usr.bin/make 553 usr.bin/yacc 554 usr.bin/lex 555 usr.bin/xlint 556 usr.bin/config 557 558Other problems and possible solutions: 559^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 560Symptom:Complaints involving a Makefile. 561Fix: Rebuild usr.bin/make: 562 cd usr.bin/make && make && make install 563 Or, a failsafe method if that doesn't work: 564 cd usr.bin/make && cc -DMAKE_NATIVE *.c -I. -o make \ 565 && install make /usr/bin 566 567Fix: Make sure .mk files are up to date. 568 cd share/mk && make install 569 570Symptom:Kernel `config' fails to configure any kernel, including GENERIC. 571Fix: Rebuild usr.bin/config 572 573Symptom:Obsolete intermediate files are used during compilation 574Fix: Try the following sequence of commands in the directory in question. 575 make cleandir; rm `make print-objdir`; make cleandir; make obj 576 (If you built the tree without "make obj" in the past, obsolete files 577 may remain. The command tries to clean everything up) 578 579Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible 580 pointer type 581Fix: Rebuild and install usr.bin/menuc 582 583Symptom:mklocale not found during build in share/locale/ctype 584Fix: Build and install usr.bin/mklocale 585 586Symptom:undefined reference to `__assert13' or `__unsetenv13' 587Fix: Rebuild and install lib/libc 588 589Symptom:usr.bin/config fails to build. 590Fix: Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile. 591 592Symptom:undefined reference to `getprogname' or `setprogname' 593Fix: Rebuild and install lib/libc 594 595Symptom:Update build fails in src/tools/gcc complaining that a variable 596 (e.g. CPPFLAGS) has changed since the previous run. 597Fix: Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build. 598 599Symptom:cvs [update aborted]: cannot open directory /cvsroot/src/...: 600 No such file or directory. 601Cause: 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. 606Fix: Recursively delete the affected directory from your working tree 607 and try the update again. 608