xref: /netbsd-src/UPDATING (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
1$NetBSD: UPDATING,v 1.255 2014/05/30 18:33:30 joerg 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
14See also: BUILDING, build.sh, Makefile.
15
16Recent changes:
17^^^^^^^^^^^^^^^
18
1920140530:
20	ARM eABI switched to DWARF based exception handling. This requires
21	rebuilding all C++ code. It is strongly advised to do a clean build.
22
2320140131:
24	The new compiler_rt/libc integration moved a few things. It is strongly
25	advised to do a clean build. At least lib/libc, the compat version(s)
26	of libc, libkern, rump and the kernels need to be cleaned.
27
2820131227:
29	1. The new ntpd runs in a restricted mode to prevent amplification
30	   attacks. If you need ntpdc to work you need to explicitly enable
31	   mode7 in your config file. Make sure you put the necessary restrict
32	   statements to avoid being exposed.
33	2. strncat has moved from lib/libc to common/lib/libc; you might need
34	   to make clean in libc
35
3620131129:
37	The GMP sources were updated, and builds will likely fail without
38	cleaning their build trees for both tools and in-tree, like below.
39
4020131128:
41	The MPC and MPFR sources were updated, and builds may require their
42	tools and in-tree directories cleaned for successful updates.
43
4420130605:
45	The kernel option FAST_IPSEC no longer exists, it's been renamed
46	to IPSEC (and the older IPSEC version removed).
47
4820130605:
49	Previous freetype installations eroneously installed private
50	header files. If you are building against a non-empty $DESTDIR,
51	please remove ${DESTDIR}//usr/X11R7/include/freetype2/freetype/.
52
5320130531:
54	The xdm update may cause build failure due to xdm.man being
55	in the obj tree.  Make sure to ensure any like this:
56		nbmake: nbmake: don't know how to make xdm.man. Stop
57	is fixed by deleting the xdm.man in the obj tree.
58
5920130530:
60	Updates of many xsrc packages will leave old .pc files around.
61	Best to clean out the xsrc objdir entirely before rebuilds.
62
6320130301:
64	The removal of netiso requires manual removal of /usr/include/netiso
65	prior to the build and make cleandir in /usr/src/usr.bin/{ktruss,kdump}
66
6720120726:
68	The update of OpenSSL requires cleaning both the OpenSSL build
69	directory and DESTDIR.  *Even non-update builds require cleaning
70	DESTDIR.* Builds done without taking these steps may fail, or in
71	some cases may succeed and install broken OpenSSL libraries that
72	cause third-party software to link incorrectly and/or crash.
73
7420120507:
75	The database schema for makemandb was changed.  You will
76	need to update the database using 'makemandb -f' or wait
77	for the next weekly run to fix it.
78
7920120319:
80	sys/conf/Makefile.kern.inc has been modified to adjust the
81	size of db_symtab automatically.  You need to update dbsym in
82	your $TOOLDIR to build kernels with options SYMTAB_SPACE.  If
83	you don't want this behavior, add AUTO_SYMTAB_SPACE=no to your
84	mk.conf.
85
8620120216:
87	Default for MKCATPAGES changed to NO.  Update builds will fail
88	unless DESTDIR is cleaned manually.  If you built between 20120207
89	and 20120216, daily and weekly could have created an unreadable
90	/var/db/man.db index for apropos.  Running makemandb -f or
91	the next run of weekly will fix it.
92
9320111227:
94	If you built between 20111225 and 20111227 you need to remove
95	/usr/lib/libpam.so.4* and /usr/lib/security/*.so.4, since the
96	bump has been reverted.
97
9820111125:
99	The "rnd" pseudodevice has been added to sys/conf/std, which
100	means it should no longer be explicitly listed in kernel
101	configuration files.  The line "pseudo-device rnd" should be
102	removed from any custom kernel config files users may have.
103
10420111119:
105	A problem with the datastructures used by the rndctl(8)
106	utility (pointers in datastructures in an array, making 32->64
107	bit compatibility very painful) has been fixed in a
108	non-backwards-compatible way.  If you replace your kernel,
109	replace your rndctl executable too.
110
11120111001:
112	the prop_*_send_syscall() functions from proplib(3) have been
113	changed and their new version is not backward compatible with the old
114	one.  So ensure that all consumers of these functions (currently:
115	quota2 code and its tests) are updated together with the new lib.
116
11720110817:
118	sparc has been changed to use GCC 4.5.3, so any objdir or
119	DESTDIR for them should be deleted before updating.
120
12120110806:
122	i386 and amd64 have been changed to use GCC 4.5.3, so any
123	objdir or DESTDIR for them should be deleted before updating.
124
12520110805:
126	The update to GCC 4.5.3 requires a non-trivial portion of
127	the tree to be cleaned.  Best to delete both objdir and
128	DESTDIR before running this update.  So far, only the
129	sparc64, mips and powerpc platforms have changed.
130
13120110803:
132	The layout of external/public-domain/xz has changed.  To do an
133	update build you will have to remove the contents of the OBJDIR
134	for external/public-domain/xz/bin by hand as the xz entry there
135	is now a directory.
136
13720110410:
138	The configuration of src/tools/gcc has changed.  To do an
139	update build you have to clean both tools/binutils and
140	tools/gcc by hand.
141
14220110328:
143	Building the Xorg binary was moved into a subdirectory to fix
144	ordering issues with "make all".  It may be necessary to remove
145	the OBJDIR for external/mit/xorg/server/xorg-server/hw/xfree86
146	if your update build fails, as the "Xorg" entry there is now a
147	directory.
148
14920110121:
150	Assembler files no longer use -traditional-cpp.  This can break
151	the build of individual parts of the tree.  This is handled
152	correctly by build.sh.  Manual builds have to update /usr/share/mk
153	and re-run config(1) for any kernel configurations as needed.
154
15520101217:
156	The tcpdump(8) program was changed to drop privileges and chroot(2)
157	by default.  It may be necessary to manually update passwd(5) and
158	group(5) in order to make the program work with existing setups.
159
16020101125:
161	The latest changes to setenv(3) dissallow setting environment
162	variables with names that contain '='.  Revision 1.18 of env.c
163	assumed that this was allowed.  Installing a new libc with an
164	old copy of /usr/bin/env causes env x=1 printenv | grep x= to
165	break which affects the autoconf tests for dependency finding,
166	so building gcc will end up printing:
167	    checking dependency style of gcc... none
168	    configure: error: no usable dependency style found
169	Fix it by rebuilding and re-installing env.
170
17120101119:
172	Recent Xorg updates in xsrc/external/mit/ may cause various build
173	or run-time problems.  Delete your entire DESTDIR and OBJDIR if you
174	have any build problems with xsrc, or problems with mismatched
175	versions between xorg-server and drivers.
176
17720100604:
178	The update of ATF to 0.9 causes old tests written in shell to fail
179	unless they are rebuilt.  If you are building with MKUPDATE=yes,
180	you need to clean the src/external/bsd/atf/tests/ and the src/tests/
181	trees by hand.
182
18320100522:
184	Recent Xorg updates in xsrc/external/mit/ will cause various build
185	problems.  Delete your entire DESTDIR and OBJDIR if you have any
186	build problems with xsrc.
187
18820100522:
189	private section of <ctype.h> was splitted, and now mklocale(1)
190	include ctype_local.h, so you have to make cleandir in tools/mklocale.
191
19220100520:
193	The location of the xkb compiled descriptions has changed.  Please
194	remove usr/X11R7/lib/X11/xkb/compiled from your $DESTDIR.
195
19620100222:
197	The shared objects file extension has been changed from .so to
198	.pico, in order to avoid conflicts with shared libraries names
199	libXX.so.  All now stale regular .so files can be removed from
200	your object directories.
201
20220100204:
203	The termcap database has been removed from the sources,
204	but has not been marked obsolete so it is not removed
205	from the system when upgrading.
206	As such, you will need to remove them from your object
207	and destination directories.
208
20920091101:
210        After updating, it may be necessary to make the 'cleandir'
211        target in src/tools/yacc/ and in src/usr.bin/yacc/ before a
212        'build.sh -u tools' or 'build.sh -u distribution'.  Ditto
213        src/tools/lex/ and src/usr.bin/lex/.
214
21520091001:
216	On amd64 you must rebuild tools (to get the new binutils)
217	before building a kernel, or the build fails on cpufunc.S.
218
21920091001:
220	An error will create a ./usr/X11R7/lib/X11/xkb/compiled/xkb
221	symlink, failing the build.  Delete the link, and the subdir
222	it is in, and retry your build.
223
22420090718:
225	libc build changed so that strchr() provides the extra entry
226	point for index().  Update build of libc.a (and libc_pic.a)
227	may fail because the archive contains the unwanted index.o.
228	(Similarly for strrchr() and rindex().)
229
23020090709:
231	Native Xorg was upgraded again.  Builds will probably fail again
232	without a clean objdir, at least for src/external/mit/xorg.
233
23420090616:
235	Native Xorg was upgraded.  Builds will need a clean objdir for
236	src/external/mit/xorg.  Upgrading a system from sets will not
237	work properly yet as the /usr/X11R7/lib/X11/xkb/symbols/pc
238	subdirectory has been changed into a file, and this needs to
239	be manually "rm -r"'ed before installing xbase.tgz.
240
24120090501:
242	Several new functions were added to string.h/libc, and this
243	can cause autoconf problems during the tool build for people
244	who fail to clean out their tools objects properly.  If you
245	note messages about stpcpy, stpncpy or strnlen accompanying a
246	failure during the tool build, clean out all your tools
247	objects and start again.
248
24920090325:
250	The i386 port was switched to i486 default toolchain.  This requires
251	cleaning your src/tools directory and $TOOLDIR and rebuilding them.
252
25320090126:
254	The __posix_fadvise50 system call changed assembly stub type.  You
255	need to 'rm -f __posix_fadvise50.*' in the libc build directory
256	to avoid using the old assembly stub.
257
25820090202:
259	pkg_install now depends on the pkgdb cache for automatic conflict
260	detection.  It is recommented to rebuild the cache with
261	``pkg_admin rebuild''.
262
26320090110:
264	time_t and dev_t have been bumped to 64 bit quantities.  To upgrade:
265	1. Make sure your kernel has COMPAT_50 in it.  Build and install.
266	   This is needed even in the MODULAR kernel because there is
267	   conditionally compiled code in rtsock.c.
268	2. make sure build.sh completes and the binaries in a chroot work
269	   before installing.
270	3. If you don't use build.sh and you build directly to root, and
271	   your build breaks in the middle, don't despair.  Make sure headers
272	   are installed properly, and start building libraries first libc
273	   and libutil, install them and then continue building all the
274	   libraries in src/lib and src/gnu/lib and install them.  Once
275	   the new libraries are installed, you can restart the build.
276	4. If you compile packages and you notice link time warnings,
277	   rebuild the required packages to update their shared libraries.
278	   Any package you rebuild will require rebuilding all the packages
279	   that depend on it.
280	5. Next time you run pwd_mkdb with the new binary, the file
281	   will be upgraded and it will not be backwards compatible.
282	6. The utmpx/wtmpx files (/var/run/utmpx and /var/log/wtmpx, see
283	   lastlogx(5)) have been versioned, and there is a heuristic
284	   for utmp.  You are better off removing the old files after
285	   upgrading.  The automated clearing of /var/run during
286	   boot, and the automated rotating of files in /var/log by
287	   newsyslog(8), may mean that you do not have to remove the
288	   files manually.
289	7. The optional accounting file (/var/account/acct, see
290	   accton(8)) has not been versioned, and will need to be
291	   removed.  The automatic rotation of the accounting file by
292	   /etc/daily limits the bad consequences of failure to remove
293	   the file.
294	8. Application software that writes time_t to binary files on
295	   disk will break or need attention.  Most notably: if you are
296	   using PostgreSQL < 8.4, you need to dump your databases,
297	   rebuild PostgreSQL with the new time_t, then restore.
298
29920081219:
300	config(1) has been updated, and one of the files it creates -
301	swapnetbsd.o - has changed format.  You need to rebuild config
302	(done automatically by build.sh) and then you need to rerun
303	config on all kernel configuration files before rebuilding those
304	kernels.
305
30620081205:
307	If you build with MKX11=no, you should remove /etc/rc.d/xdm and
308	/etc/rc.d/xfs from DESTDIR because those files were moved to the xetc
309	set and will appear as extra files for MKX11=no update builds.
310
31120081122:
312	On i386, various kernel options(4) in GENERIC including
313	file systems have been disabled and moved into kernel modules.
314	Before trying a new GENERIC kernel, you have to prepare the
315	following files as well as a new GENERIC kernel:
316
317	- build and install kernel modules from src/sys/modules
318
319	- install the latest bootloader, which will load a module
320	  for the file system from which the kernel is loaded automatically
321
322	If you have to load your kernel from a file system which is not of
323	the same type as the root file system, you have to load the necessary
324	file system module manually on the boot prompt or in the boot.cfg file.
325
32620080827:
327	If you built and installed a libc from sources between
328	2008/08/20 and 2008/08/26 you got a broken strtouq(3)
329	which results in false errors reported by lint(1).
330	Since this breaks the libc build itself, manual help is
331	needed -- lint must be disabled temporarily, e.g.:
332	  $ (cd lib/libc && make MKLINT=no dependall install)
333
33420080813:
335	MKDEBUG build was broken because the .depend files did not know
336	about .go files.  You need to remove all .depend files and rebuild.
337
33820080802:
339	A regression in binary compatibility for pthread_mutex_t has
340	been fixed.  Unfortunately, the price is breaking compatibility
341	for -current.
342
343	Threaded programs (using libpthread) and C++ programs (using
344	libstdc++) compiled after 20070907 and before 20080802 need to
345	be recompiled.
346
347	One way to find affected pkgsrc packages:
348
349	  $ grep REQUIRES=/usr/lib/libpthread /var/db/pkg/*/+BUILD_INFO
350	  $ grep REQUIRES=/usr/lib/libstdc++ /var/db/pkg/*/+BUILD_INFO
351
35220080731:
353	WAPBL (metadata journaling support) has been added, but at this
354	time isn't backwards compatible with pre-WAPBL aware kernels
355	and userland (fsck_ffs in particular).  Please make sure you
356	don't use a journaled filesystem with an older kernel/userland,
357	especially an uncleanly mounted journaled filesystem.  WAPBL
358	also requires the super block to be in the UFS2 format.  You
359	can use fsck_ffs -c 4 to update the superblock format.
360
36120080721:
362	Assembler warnings are now fatal if $WARNS>0 and $NOGCCERROR
363	isn't defined.
364
36520080531:
366	The ioctl number of DRVSUSPENDDEV command on /dev/drvctl changed
367	from 125 (conflicted with DRVCTLCOMMAND) to 129.  The drvctl(8)
368	utility needs to be rebuilt and reinstalled as older binaries
369	won't work correctly.  The following sequence of commands:
370
371	  $ (cd sys/sys/ && nbmake-$arch includes)
372	  $ (cd sbin/drvctl/ && nbmake-$arch clean)
373	  $ (cd sbin/drvctl/ && nbmake-$arch all)
374
375	leaves new drvctl utility in sbin/drvctl build directory.
376
37720080503:
378	The <bsd.lib.mk> variable MKPRIVATELIB was renamed to LIBISPRIVATE.
379
38020080521:
381	For a while, unprivileged UPDATE builds would fail to
382	succeed at the checkflist stage, complaining that
383	${DESTDIR}/stand/<arch>/ did not exist.  A fix for this
384	problem was committed to share/mk/bsd.kmodule.mk, revision 1.9.
385	If you already hit this problem, update the .mk file,
386	remove ${DESTDIR}/stand/<arch>, and re-run the build.
387
38820080303:
389	Linker warnings are now fatal if $WARNS>0.
390
39120080126:
392	The posix_fadvise system call has been changed from an assembly
393	stub, to a c file that calls an assembly stub.  You need to
394	'rm -f posix_fadvise.* .depend' in the libc build directory to
395	avoid using the old assembly stub.
396
39720071209:
398	The acpiec(4) driver has been split into two attachments.  If you
399	get ACPI errors before the attachment, please update your kernel
400	configuration file appropriately or see GENERIC for more details.
401
40220071115:
403	The it(4) driver has been renamed to itesio(4) and the old port
404	argument specified in the kernel configuration file is not valid
405	anymore.  The itesio(4) driver now uses the Super I/O address port
406	rather than the EC address port.  Please update your kernel
407	configuration file appropriately or see GENERIC for more details.
408
40920071028:
410	The pccons(4) driver has been removed from the NetBSD/shark port.
411	You need to update any custom kernel configuration file you have
412	to remove any references to pccons (which includes removing the
413	now useless XSERVER option) and replace them with the correct
414	entries for the wscons driver.  See the GENERIC configuration file
415	for more details.
416
41720070913:
418	A latent bug in dhclient/dhcpd that caused it to be unable to
419	enumerate interfaces was fixed.  The bug began to cause
420	problems after 20070911 when the kernel's SIOCGIFCONF
421	implementation was repaired.  From 20070529 to 20070911 racoon
422	could not enumerate interfaces.  (These are noted because
423	normal kernel/userspace version matching hygiene is not
424	sufficient to avoid this problem.)  Ensure that both kernel
425	and userland are from after 20070913.
426
42720070703:
428	nbinstall has been renamed ${MACHINE_GNU_ARCH}-install.  It
429	calls the target-specific strip program, and the logic to pass
430	down STRIP from make has been removed.  This requires a
431	re-installation of tools.
432
43320070422:
434	The way OS emulations lookup filenames inside the emulation root
435	has been changed.  Rather than modify the pathname (and copy back
436	to userspace) namei() and lookup() directly check the emulation
437	root.  One side effect is that absolute symlinks inside the emulated
438	root file system will be relative to that file system - unless they
439	start /../ this is useful when the emulated root is a real install
440	that has such links.
441	This might affect symlinks that have been added to reference outside
442	the emulated root.
443
44420070412:
445	The pckbc driver on sgimips IP32 has been removed.  Use macekbc
446	instead.  See the GENERIC32_IP3x kernel configuration for an
447	example.
448
44920070319:
450        src/lib/libc/Makefile revision 1.129 broke libc and ld.elf_so
451        on many platforms due to incorrect flags settings.  If you
452        updated and built after about 20070315, do "nbmake-$arch
453	cleandir" in src/lib/libc and src/libexec/ld.elf_so to force a
454	rebuild of object files that might have been built
455	incorrectly, and ensure that you have at least
456	src/lib/libc/Makefile 1.130.
457
45820070210:
459        src/sys/sys/{sa.h,savar.h} were removed.
460          find ${OBJDIR} \( -name .depend -o -name '*.d' \) -print \
461              | xargs egrep -l '/sa.h|/savar.h' | xargs rm
462        will allow dependencies on those files to get get rebuilt
463
46420070209:
465        The threading model was changed when the newlock2 branch
466        was merged to NetBSD-current.  If you boot with a new
467        kernel (version 4.99.10), then you also need a new pthread
468        library (/usr/lib/libpthread.so.0.7).  If you boot with
469        an old kernel, then you need the old pthread library
470        (/usr/lib/libpthread.so.0.6).  Provided you keep the kernel and
471        the pthread library in sync, old threaded applications should
472        continue to work with an old or new kernel.  Note that named(8)
473	is the only threaded application in the base system.
474
47520061214:
476	Following the move of string_to_flags() and flags_to_string()
477	from the bin/ls/ sources to libutil, users doing UPDATE builds
478	will need to do a "make cleandir" in
479		tools/mtree/, tools/makefs/, tools/binstall/, tools/pax/,
480		bin/pax/, bin/ls/, usr.sbin/mtree/, usr.sbin/makefs/,
481		usr.bin/xinstall/, libexec/ftpd/, rescue/, as well
482		as the installation images in distrib/
483	in order to excise stale references to the old stat_flags.h header
484	file in the ls sources -- stat_flags.h has been removed.
485
48620061108:
487	The configure script used in the src/tools/gcc compiler has been
488	changed to indicate that our libc has ssp support built-in and
489	does not depend on -lssp and -lssp-nonshared.  You'll need to
490	make clean in src/tools/gcc first to rebuild the compiler.
491
49220061009:
493	The sysctl variables net.inet{,6}.tcp{,6}.newreno are no longer
494	available.  Use net.inet{,6}.tcp{,6}.congctl.selected instead.
495
49620060814:
497	The vt, vidcconsole, kbd, and rpckbd drivers on acorn32 have been
498	withdrawn.  Use vidcvideo and pckbd instead.  See the GENERIC
499	kernel configuration for an example.  X servers from the last
500	few years should cope.
501
50220060703:
503	MPACPI is no more.  We always configure PCI interrupts using ACPI
504	if we have an ACPI kernel.  The option MPACPI_SCANPCI has been renamed
505	to ACPI_SCANPCI.  Thanks to work from fvdl.
506
50720060627:
508	socket(2) has changed, and its system call has been versioned.
509	For userlands with the old version of socket(2), make sure that
510	your kernel has 'options COMPAT_30' set, or else 'bad system call'
511	errors will result.
512
513Hints for a more successful build:
514^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
515    Use build.sh, but do not use its "expert mode":
516	This will automatically build the tools in the
517	   correct order, and it will keep the tools and the
518	   new build products from interfering with the running
519	   system.  This will allow you to ignore most of the
520	   other advice in this file.
521    Build a new kernel first:
522	This makes sure that any new system calls or features
523	   expected by the new userland will be present.  This
524	   helps to avoid critical errors when upgrading.
525    Use object directories:
526	This helps to keep stale object
527	   files from polluting the build if a Makefile "forgets"
528	   about one.  It also makes it easier to clean up after
529	   a build.  It's also necessary if you want to use the
530	   same source tree for multiple machines.
531	   To use object directories with build.sh:
532	    a) invoke build.sh with the "-M" or "-O" options.
533	   To use object directories without using build.sh:
534	    a) cd /usr/src ; make cleandir
535	    b) Add "OBJMACHINE=yes" to /etc/mk.conf
536	    c) Add "MKOBJDIRS=yes" to /etc/mk.conf
537	    d) cd /usr/src ; make build
538	   Note that running "make obj" in a directory will create
539	   in obj.$MACHINE directory.
540    Build to a DESTDIR:
541	This helps to keep old installed files (especially libraries)
542	   from interfering with the new build.
543	   To build to a DESTDIR with build.sh, use the "-D" option.
544	   To build to a DESTDIR without using build.sh, set the DESTDIR
545	   environment variable before running make build.  It should be
546	   set to the pathname of an initially empty directory.
547	   Problems: if you do not use build.sh, you might need to
548		update critical utilities without using DESTDIR since
549		nothing is executed from what is installed in DESTDIR.
550		(See critical utils, below.)
551    Build often:
552	This keeps critical utilities current enough to not choke
553	on any other part of the source tree that depends on up to
554	date functionality.  If you use build.sh, you should not have
555	this problem.
556
557What to do if things don't work:
558^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
559When things don't work there are usually a few things that commonly
560should be done.
561    1)	make includes
562	This should be done automatically by make build.
563    2)  cd share/mk && make install
564	Again, automatically done by make build.
565
566Failsafe rebuild of a small part of the tree:
567^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
568To make sure you rebuild something correctly you want to do
569something like the following:
570    1)  Make sure the includes and .mk files are up to date.
571    2)  Make sure any program used to build the particular
572	utility is up to date.  (yacc, lex, etc...)
573    3)  cd ...path/to/util...
574	make cleandir
575	rm ...all obj directories...
576	make cleandir			# yes, again
577	make obj
578	make depend && make
579
580Failsafe rebuild of the entire tree:
581^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
582If you really want to make sure the source tree is clean and
583ready for a build try the following.  Note that sourcing /etc/mk.conf
584(a make(1) Makefile) in this manner is not right, and will not work
585for anyone who uses any make(1) features in /etc/mk.conf.
586
587---cut here---
588#!/bin/sh
589. /etc/mk.conf
590
591if [ -z $NETBSDSRCDIR ] ; then
592    NETBSDSRCDIR=/usr/src
593fi
594if [ \! -d $NETBSDSRCDIR ] ; then
595    echo Unable to find sources
596    exit 1
597fi
598find $NETBSDSRCDIR -name \*.o -o -name obj.\* -o -name obj -exec rm \{\} \;
599
600if [ -z $BSDOBJDIR ] ; then
601    BSDOBJDIR=/usr/obj
602fi
603if [ -d $BSDOBJDIR ] ; then
604    rm -rf $BSDOBJDIR
605fi
606
607cd $NETBSDSRCDIR && make cleandir
608
609---cut here---
610
611Critical utilities:
612^^^^^^^^^^^^^^^^^^^
613	usr.bin/compile_et
614	usr.bin/make
615	usr.bin/yacc
616	usr.bin/lex
617	usr.bin/xlint
618	usr.bin/config
619
620Other problems and possible solutions:
621^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
622Symptom:Complaints involving a Makefile.
623Fix:	Rebuild usr.bin/make:
624	cd usr.bin/make && make && make install
625	Or, a failsafe method if that doesn't work:
626	cd usr.bin/make && cc *.c */*.c -I . -o make && mv make /usr/bin
627
628Fix:	Make sure .mk files are up to date.
629	cd share/mk && make install
630
631Symptom:Kernel `config' fails to configure any kernel, including GENERIC.
632Fix:	Rebuild usr.bin/config
633
634Symptom:
635Fix:	Rebuild usr.bin/yacc
636
637Symptom:
638Fix:	Rebuild usr.bin/lex
639
640Symptom:
641Fix:	rm /usr/lib/libbfd.a
642
643Symptom:Obsolete intermediate files are used during compilation
644Fix:	Try the following sequence of commands in the directory in question.
645	make cleandir; rm `make print-objdir`; make cleandir; make obj
646	(If you built the tree without "make obj" in the past, obsolete files
647	may remain.  The command tries to clean everything up)
648
649Symptom:.../sysinst/run.c:xx: warning: initialization from incompatible
650	pointer type
651Fix:	Rebuild and install usr.bin/menuc
652
653Symptom:mklocale not found during build in share/locale/ctype
654Fix:	Build and install usr.bin/mklocale
655
656Symptom:undefined reference to `__assert13' or `__unsetenv13'
657Fix:    Rebuild and install lib/libc
658
659Symptom:usr.bin/config fails to build.
660Fix:	Try building with -DMAKE_BOOTSTRAP added to CFLAGS in Makefile.
661
662Symptom:undefined reference to `getprogname' or `setprogname'
663Fix:    Rebuild and install lib/libc
664
665Symptom:lint does not understand the '-X' option
666Fix:    May need to build & install libs with NOLINT=1 before rebuilding lint
667
668Symptom:Update build fails in src/tools/gcc complaining that a variable
669	(e.g. CPPFLAGS) has changed since the previous run.
670Fix:    Run "nbmake-${ARCH} clean" in src/tools/gcc or do a clean build.
671