BUILDING revision 1.41
1 BUILDING(8) NetBSD System Manager's Manual BUILDING(8) 2 3 NAME 4 BUILDING - Procedure for building NetBSD from source code. 5 6 STATUS 7 This document is a work-in-progress. As such, the information described 8 here may not match the reality of the build system as of this writing. 9 Once this document is completely in sync with reality, this paragraph 10 will be removed. 11 12 Discrepancies between this documentation and the current reality of im- 13 plementation are noted specially, as with the note below: 14 15 Note: This document applies only to platforms which use the new toolchain 16 as indicated by the default setting of TOOLCHAIN_MISSING in <bsd.own.mk>. 17 Platforms which have not yet been switched to the new toolchain should 18 continue building traditionally, using the notes specified in the file 19 UPDATING. 20 21 REQUIREMENTS 22 NetBSD is designed to be buildable on most POSIX-compliant host systems. 23 The basic build procedure is the same whether compiling natively (on the 24 same NetBSD architecture) or cross compiling (on another architecture or 25 OS). 26 27 This source tree contains a special subtree, ``tools'', which uses the 28 host system to create a build toolchain for the target architecture. The 29 host system must have at least C and C++ compilers in order to create the 30 toolchain (make is not required); all other tools are created as part of 31 the NetBSD build process. 32 33 Note: A couple of host toolchain components are not yet available 34 in the tools directory. Also, some tools use non-POSIX, non-ANSI C 35 extensions and need to be standardized. As a result, cross-compil- 36 ing from systems other than NetBSD is not currently supported. 37 38 FILES 39 Source tree layout 40 doc/BUILDING.mdoc 41 This document (in -mdoc troff format; the original copy). 42 43 BUILDING This document (in plaintext). 44 45 Makefile The main Makefile for NetBSD; should only be run for na- 46 tive builds with an appropriately up-to-date version of 47 NetBSD make(1). (For building from out-of-date systems or 48 on a non-native host, see the build.sh shell script.) 49 50 UPDATING Special notes for updating from an earlier revision of 51 NetBSD. It is important to read this file before every 52 build of an updated source tree. 53 54 build.sh Bourne-compatible shell script used for building the host 55 build tools and the NetBSD system from scratch. Can be 56 used for both native and cross builds, and should be used 57 instead of make(1) for any source tree that is updated and 58 recompiled regularly. 59 60 crypto/dist/, dist/, gnu/dist/ 61 Sources imported verbatim from third parties, without man- 62 gling the existing build structure. Other source trees in 63 bin through usr.sbin use the NetBSD make(1) ``reachover'' 64 Makefile semantics when building these programs for a na- 65 tive host. 66 67 distrib/, etc/ 68 Sources for items used when making a full release snap- 69 shot, such as files installed in DESTDIR/etc on the desti- 70 nation system, boot media, and release notes. 71 72 regress/ Regression test harness. Can be cross-compiled, but only 73 run natively. 74 75 sys/ NetBSD kernel sources. 76 77 tools/ ``Reachover'' build structure for the host build tools. 78 This has a special method of determining out-of-date sta- 79 tus. 80 81 bin/ ... usr.sbin/ 82 Sources to the NetBSD userland (non-kernel) programs. If 83 any of these directories are missing, they will be skipped 84 during the build. 85 86 Build tree layout 87 The NetBSD build tree is described in hier(7), and the release layout is 88 described in release(7). 89 90 CONFIGURATION 91 Environment variables 92 Several environment variables control the behaviour of NetBSD builds. 93 94 MACHINE Machine type. 95 96 MACHINE_ARCH Machine architecture. 97 98 MAKE Path name to invoke make(1) as. 99 100 MAKEFLAGS Flags to invoke make(1) with. 101 102 MAKEOBJDIR Directory to use as the .OBJDIR for the current direc- 103 tory. Used only if MAKEOBJDIRPREFIX is not defined. 104 MAKEOBJDIR can only be provided in the environment or 105 via the -O flag of build.sh. 106 107 MAKEOBJDIRPREFIX Top level directory of the object directory tree. If 108 this is defined, ${MAKEOBJDIRPREFIX}/${.CURDIR} is used 109 as the .OBJDIR for the current directory. The current 110 directory may be read only. MAKEOBJDIRPREFIX can only 111 be provided in the environment or via the -M flag of 112 build.sh. 113 114 "make" variables 115 Several variables control the behavior of NetBSD builds. Unless other- 116 wise specified, these variables may be set in either the process environ- 117 ment or the make(1) configuration file specified by MAKECONF. 118 119 BUILDID Identifier for the build. The identifier will be appended to 120 object directory names, and can be consulted in the make(1) 121 configuration file in order to set additional build parame- 122 ters, such as compiler flags. 123 124 DESTDIR Directory to contain the built NetBSD system. If set, spe- 125 cial options are passed to the compilation tools to prevent 126 their default use of the host system's /usr/include, 127 /usr/lib, and so forth. This pathname should not end with a 128 slash (/) character (for installation into the system's root 129 directory, set DESTDIR to an empty string). The directory 130 must reside on a file system which supports long file names 131 and hard links. 132 133 Default: Empty string if USETOOLS is ``yes''; unset other- 134 wise. 135 136 Note: build.sh will provide a default of destdir.MACHINE (in 137 the top-level .OBJDIR) unless run in `expert' mode 138 139 MAKECONF The name of the make(1) configuration file. Only settable in 140 the process environment. 141 142 Default: ``/etc/mk.conf'' 143 144 MKCATPAGES Can be set to ``yes'' or ``no''. Indicates whether prefor- 145 matted plaintext manual pages will be created during a build. 146 147 Default: ``yes'' 148 149 MKCRYPTO Can be set to ``yes'' or ``no''. Indicates whether crypto- 150 graphic code will be included in a build; provided for the 151 benefit of countries that do not allow strong cryptography. 152 Will not affect use of the standard low-security password en- 153 cryption system, crypt(3). 154 155 Default: ``yes'' 156 157 MKDOC Can be set to ``yes'' or ``no''. Indicates whether system 158 documentation destined for DESTDIR/usr/share/doc will be in- 159 stalled during a build. 160 161 Default: ``yes'' 162 163 MKHOSTOBJ Can be set to ``yes'' or ``no''. If set to ``yes'', then for 164 programs intended to be run on the compile host, the name, 165 release, and architecture of the host operating system will 166 be suffixed to the name of the object directory created by 167 ``make obj''. (This allows multiple host systems to compile 168 NetBSD for a single target.) If set to ``no'', then programs 169 built to be run on the compile host will use the same object 170 directory names as programs built to be run on the target. 171 172 Default: ``no'' 173 174 MKINFO Can be set to ``yes'' or ``no''. Indicates whether GNU Info 175 files, used for the documentation for most of the compilation 176 tools, will be created and installed during a build. 177 178 Default: ``yes'' 179 180 MKLINT Can be set to ``yes'' or ``no''. Indicates whether lint(1) 181 will be run against portions of the NetBSD source code during 182 the build, and whether lint libraries will be installed into 183 DESTDIR/usr/libdata/lint. 184 185 Default: ``yes'' 186 187 MKMAN Can be set to ``yes'' or ``no''. Indicates whether manual 188 pages will be installed during a build. 189 190 Default: ``yes'' 191 192 MKNLS Can be set to ``yes'' or ``no''. Indicates whether Native 193 Language System locale zone files will be compiled and in- 194 stalled during a build. 195 196 Default: ``yes'' 197 198 MKOBJ Can be set to ``yes'' or ``no''. Indicates whether object 199 directories will be created when running ``make obj''. If 200 set to ``no'', then all built files will be located inside 201 the regular source tree. 202 203 Default: ``yes'' 204 205 MKPIC Can be set to ``yes'' or ``no''. Indicates whether shared 206 objects and libraries will be created and installed during a 207 build. If set to ``no'', the entire built system will be 208 statically linked. 209 210 Default: Platform dependent. As of this writing, all plat- 211 forms except sh3 default to ``yes''. 212 213 MKPICINSTALL 214 Can be set to ``yes'' or ``no''. Indicates whether the ar(1) 215 format libraries (lib*_pic.a), used to generate shared li- 216 braries, are installed during a build. 217 218 Default: ``yes'' 219 220 MKPROFILE Can be set to ``yes'' or ``no''. Indicates whether profiled 221 libraries (lib*_p.a) will be built and installed during a 222 build. 223 224 Default: ``yes''; however, some platforms turn off MKPROFILE 225 by default at times due to toolchain problems with profiled 226 code. 227 228 MKSHARE Can be set to ``yes'' or ``no''. Indicates whether files 229 destined to reside in DESTDIR/usr/share will be built and in- 230 stalled during a build. If set to ``no'', then all of 231 MKCATPAGES, MKDOC, MKINFO, MKMAN, and MKNLS will be set to 232 ``no'' unconditionally. 233 234 Default: ``yes'' 235 236 MKUNPRIVED Can be set to ``yes'' or ``no''. Indicates whether an un- 237 privileged install will occur. The user, group, permissions, 238 and file flags, will not be set on the installed item; in- 239 stead the information will be appended to a file called 240 METALOG in DESTDIR. The contents of METALOG is used during 241 the generation of the distribution tar files to ensure that 242 the appropriate file ownership is stored. 243 244 Default: ``no'' 245 246 MKUPDATE Can be set to ``yes'' or ``no''. Indicates whether all in- 247 stall operations intended to write to DESTDIR will compare 248 file timestamps before installing, and skip the install phase 249 if the destination files are up-to-date. This also has im- 250 plications on full builds (see next subsection). 251 252 Default: ``no'' 253 254 TOOLDIR Directory to hold the host tools, once built. This directory 255 should be unique to a given host system and NetBSD source 256 tree. (However, multiple targets may share the same TOOLDIR; 257 the target-dependent files have unique names.) If unset, a 258 default based on the uname(1) information of the host plat- 259 form will be created in the .OBJDIR of src. 260 261 Default: Unset. 262 263 USETOOLS Indicates whether the tools specified by TOOLDIR should be 264 used as part of a build in progress. Must be set to ``yes'' 265 if cross-compiling. 266 267 yes Use the tools from TOOLDIR. 268 269 no Do not use the tools from TOOLDIR, but refuse to build 270 native compilation tool components that are version- 271 specific for that tool. 272 273 never Do not use the tools from TOOLDIR, even when building 274 native tool components. This is similar to the tradi- 275 tional NetBSD build method, but does not verify that 276 the compilation tools in use are up-to-date enough in 277 order to build the tree successfully. This may cause 278 build or runtime problems when building the whole 279 NetBSD source tree. 280 281 Default: ``yes'' if building all or part of a whole NetBSD 282 source tree (detected automatically); ``no'' otherwise (to 283 preserve traditional semantics of the <bsd.*.mk> make(1) in- 284 clude files). 285 286 "make" variables for full builds 287 These variables only affect the top level ``Makefile'' and do not affect 288 manually building subtrees of the NetBSD source code. 289 290 INSTALLWORLDDIR Location for the ``make installworld'' target to install 291 to. 292 293 Default: ``/'' 294 295 MKOBJDIRS Can be set to ``yes'' or ``no''. Indicates whether ob- 296 ject directories will be created automatically (via a 297 ``make obj'' pass) at the start of a build. 298 299 Default: ``no'' 300 301 MKUPDATE Can be set to ``yes'' or ``no''. If set, then in addi- 302 tion to the effects described for MKUPDATE=yes above, 303 this implies the effects of NOCLEANDIR (i.e., ``make 304 cleandir'' is avoided). 305 306 Default: ``no'' 307 308 NBUILDJOBS Now obsolete. Use the make(1) option -j, instead (see 309 below) 310 311 Default: Unset. 312 313 NOCLEANDIR If set, avoids the ``make cleandir'' phase of a full 314 build. This has the effect of allowing only changed 315 files in a source tree to be recompiled. This can speed 316 up builds when updating only a few files in the tree. 317 318 Default: Unset. 319 320 NODISTRIBDIRS If set, avoids the ``make distrib-dirs'' phase of a full 321 build. This skips running mtree(8) on DESTDIR, useful 322 on systems where building as an unprivileged user, or 323 where it is known that the system-wide mtree files have 324 not changed. 325 326 Default: Unset. 327 328 NOINCLUDES If set, avoids the ``make includes'' phase of a full 329 build. This has the effect of preventing make(1) from 330 thinking that some programs are out-of-date simply be- 331 cause the system include files have changed. However, 332 this option should not be used when updating the entire 333 NetBSD source tree arbitrarily; it is suggested to use 334 MKUPDATE=yes in that case. 335 336 Default: Unset. 337 338 RELEASEDIR If set, specifies the directory to which a release(7) 339 layout will be written at the end of a ``make release''. 340 341 Default: Unset. 342 343 Note: build.sh will provide a default of releasedir (in 344 the top-level .OBJDIR) unless run in `expert' mode 345 346 BUILDING 347 "make" command line options 348 This is only a summary of options available to make(1); only the options 349 used most frequently with NetBSD builds are listed here. 350 351 -j njob Run up to njob make(1) subjobs in parallel. Makefiles should 352 use .WAIT or have explicit dependancies as necessary to en- 353 force build ordering. If you see build failures with -j, 354 please save complete build logs so the failures can be ana- 355 lyzed. 356 357 -m dir Specify the default directory for searching for system Make- 358 file segments, mainly the <bsd.*.mk> files. When building any 359 full NetBSD source tree, this should be set to the 360 ``share/mk'' directory in the source tree. (This is set auto- 361 matically when building from the top level.) 362 363 -n Display the commands that would have been executed, but do not 364 actually execute them. This will still cause recursion to 365 take place. 366 367 -v var Print make(1)'s idea of the value of var. Does not build any 368 targets. 369 370 var=value Set the variable var to value, overriding any setting speci- 371 fied by the process environment, the MAKECONF configuration 372 file, or the system Makefile segments. 373 374 "make" targets 375 These default targets may be built by running make(1) in any subtree of 376 the NetBSD source code. It is recommended that none of these be used 377 from the top level Makefile; as a specific exception, ``make obj'' and 378 ``make cleandir'' are useful in that context. 379 380 all Build programs, libraries, and preformatted documentation. 381 382 clean Remove program and library object code files. 383 384 cleandir Same as clean, but also remove preformatted documentation, de- 385 pendency files generated by ``make depend'', and any other 386 files known to be created at build time. ``make distclean'' 387 may be used as a synonym, for familiarity with a similar well- 388 known convention. 389 390 depend Create dependency files (.depend) containing more detailed in- 391 formation about the dependencies of source code on header 392 files. Allows programs to be recompiled automatically when a 393 dependency changes. 394 395 dependall Does a ``make depend'' immediately followed by a ``make all''. 396 This improves cache locality of the build since both passes 397 read the source files in their entirety. 398 399 includes Build and install system header files. Typically needed be- 400 fore any system libraries or programs can be built. 401 402 install Install programs, libraries, and documentation into DESTDIR. 403 Few files will be installed to DESTDIR/dev, DESTDIR/etc, 404 DESTDIR/root or DESTDIR/var in order to prevent user supplied 405 configuration data from being overwritten. 406 407 lint Run lint(1) against the C source code, where appropriate, and 408 generate system-installed lint libraries. 409 410 obj Create object directories to be used for built files, instead 411 of building directly in the source tree. 412 413 tags Create ctags(1) searchable function lists usable by the ex(1) 414 and vi(1) text editors. 415 416 "make" targets for the top level 417 Additional make(1) targets are usable specifically from the top source 418 level to facilitate building the entire NetBSD source tree. 419 420 build Build the entire NetBSD system. This orders portions of 421 the source tree such that prerequisites will be built in 422 the proper order. 423 424 distribution Do a ``make build'', and then install a full distribution 425 into DESTDIR, including files in DESTDIR/dev, DESTDIR/etc, 426 DESTDIR/root and DESTDIR/var. 427 428 buildworld As per ``make distribution'', except that it ensures that 429 DESTDIR is not the root directory. 430 431 installworld Install the distribution from DESTDIR to INSTALLWORLDDIR 432 (which defaults to the root directory). Ensures that 433 INSTALLWORLDDIR is the not root directory if cross compil- 434 ing. 435 436 Note: It is highly recommended that you upgrade your kernel 437 and reboot before performing this operation. 438 439 sets Create distribution sets from DESTDIR into 440 RELEASEDIR/MACHINE/binary/sets. Should be run after ``make 441 distribution'' (as ``make build'' does not install all of 442 the required files). 443 444 sourcesets Create source sets of the source tree into 445 RELEASEDIR/source/sets. 446 447 release Do a ``make distribution'', build kernels, distribution me- 448 dia, and install sets (this as per ``make sets''), and then 449 package the system into a standard release layout as de- 450 scribed by release(7). This requires that RELEASEDIR be 451 set (see above). 452 453 regression-tests 454 Can only be run after building the regression tests in the 455 directory ``regress''. Runs the compiled regression tests 456 on the local host. 457 458 The "build.sh" script 459 This script file is a Bourne shell script designed to build the entire 460 NetBSD system on any host with a Bourne shell in /bin/sh, including many 461 that are not POSIX compliant. Note that if a host system's /bin/sh is 462 unusually old and broken, the Korn Shell (/bin/ksh), if available, may be 463 a usable alternative. 464 465 All cross-compile builds, and most native builds, of the entire system 466 should make use of build.sh rather than just running ``make''. This way, 467 the make(1) program will be bootstrapped properly, in case the host sys- 468 tem has an older or incompatible ``make'' program. 469 470 When compiling the entire system via build.sh, many make(1) variables are 471 set for you in order to help encapsulate the build process. In the list 472 of options below, variables that are automatically set by build.sh are 473 noted where applicable. 474 475 The following operations are supported by build.sh: 476 477 build Build the system as per ``make build''. This option im- 478 plies the obj and tools operations. 479 480 distribution Build a full distribution as per ``make distribution''. 481 This option implies the build operation. 482 483 release Build a full release as per ``make release''. This option 484 implies the distribution operation. 485 486 makewrapper Create the nbmake-MACHINE wrapper. This operation is auto- 487 matically performed for any of the other operations. 488 489 obj Perform ``make obj''. 490 491 tools Build and install the host tools from src/tools. 492 493 install=idir Install the contents of DESTDIR to idir, using ``make 494 installworld''. 495 496 kernel=kconf Build a new kernel. The kconf argument is the name of a 497 configuration file suitable for use by config(8). If kconf 498 does not contain any `/' characters, the configuration file 499 is expected to be found in the KERNCONFDIR directory, which 500 is typically sys/arch/MACHINE/conf. The new kernel will be 501 built in a subdirectory of KERNOBJDIR, which is typically 502 sys/arch/MACHINE/compile or an associated object directory. 503 In order to ensure that the kernel is built using up-to- 504 date tools, it is strongly recommended that the tools be 505 rebuilt (using the tools operation). 506 507 releasekernel=kconf 508 Install a gzip(1)ed copy of the kernel built by 509 kernel=kconf into RELEASEDIR/MACHINE/binary/kernel, usually 510 as netbsd-kconf.gz, although the ``netbsd'' prefix is de- 511 termined from the ``config'' directives in kconf. 512 513 sets Perform ``make sets''. 514 515 sourcesets Perform ``make sourcesets''. 516 517 The following command line options alter the behaviour of the above oper- 518 ations: The following command line options alter the behaviour of the 519 build.sh operations described above: 520 521 -a arch Set the value of MACHINE_ARCH to arch. 522 523 -B buildid 524 Set the value of BUILDID to buildid. This will also append the 525 build idenfitier to the name of the ``make'' wrapper script so 526 that the resulting name is of the form 527 ``nbmake-MACHINE-BUILDID''. 528 529 -D dest Set the value of DESTDIR to dest. 530 531 -E Set `expert' mode. This overrides various sanity checks, and 532 allows: DESTDIR does not have to be set to a non-root path for 533 builds, and MKUNPRIVED=yes does not have to be set when build- 534 ing as a non-root user. 535 536 Note: It is highly recommended that you know what you are doing 537 when you use this option. 538 539 -j njob Passed through to make(1). Makefiles should use .WAIT or have 540 explicit dependancies as necessary to enforce build ordering. 541 If you see build failures with -j, please save complete build 542 logs so the failures can be analyzed. 543 544 -M obj Set MAKEOBJDIRPREFIX to obj. Unsets MAKEOBJDIR. 545 546 -m mach Set the value of MACHINE to mach. This will also override any 547 value of MACHINE_ARCH in the process environment with a value 548 deduced from mach, unless -a is specified, or mach is a special 549 case listed below. All cross builds require -m, but if unset 550 on a NetBSD host, the host's value of MACHINE will be detected 551 and used automatically. 552 553 Some machines support multiple values for MACHINE_ARCH. For a 554 given value of mach, the following MACHINE and MACHINE_ARCH 555 values will result: 556 557 mach MACHINE MACHINE_ARCH 558 evbmips evbmips (not set) 559 evbmips-eb evbmips mipseb 560 evbmips-el evbmips mipsel 561 evbsh3 evbsh3 (not set) 562 evbsh3-eb evbsh3 sh3eb 563 evbsh3-el evbsh3 sh3el 564 sbmips sbmips (not set) 565 sbmips-eb sbmips mipseb 566 sbmips-el sbmips mipsel 567 568 -n Show the commands that would be executed by build.sh, but do 569 not make any changes. This is similar in concept to ``make 570 -n''. 571 572 -O obj Create an appropriate transform macro for MAKEOBJDIR that will 573 place the built object files under obj. For instance, a set- 574 ting of /usr/obj will place build-time files under 575 /usr/obj/bin, /usr/obj/lib, /usr/obj/usr.bin, and so forth. 576 Unsets MAKEOBJDIRPREFIX. 577 578 -o Set the value of MKOBJDIRS to ``no''. Otherwise, it will be 579 automatically set to ``yes'' (which is opposite to the default 580 behaviour). 581 582 -R rel Set the value of RELEASEDIR to rel. 583 584 -r Remove the contents of DESTDIR and TOOLDIR before building 585 (provides a clean starting point). This will skip deleting 586 DESTDIR if building on a native system to the root directory. 587 588 -T tools Set the value of TOOLDIR to tools. If set, the bootstrap 589 ``make'' will only be rebuilt as needed (when the source files 590 for make(1) change). 591 592 -U Set MKUNPRIVED=yes. 593 594 -u Set MKUPDATE=yes. 595 596 -V var=[value] 597 Set the environment variable var to an optional value. This is 598 propagated to the nbmake wrapper. 599 600 -w wrapper 601 Create the nbmake wrapper script (see below) in a custom loca- 602 tion, specified by wrapper. This allows, for instance, to 603 place the wrapper in PATH automatically. Note that wrapper is 604 the full name of the file, not just a directory name. 605 606 -Z var Unset ("zap") the environment variable var. This is propagated 607 to the nbmake wrapper. 608 609 The "nbmake-MACHINE" wrapper script 610 If using the build.sh script to build NetBSD, a nbmake-MACHINE script 611 will be created in TOOLDIR/bin upon the first build to assist in building 612 subtrees on a cross-compile host. 613 614 nbmake-MACHINE can be invoked in lieu of make(1), and will instead call 615 the up-to-date version of ``nbmake'' installed into TOOLDIR/bin with sev- 616 eral key variables pre-set, including MACHINE, MACHINE_ARCH, and TOOLDIR. 617 build.sh will also set variables specified with -V, and unset variables 618 specified with -Z. 619 620 This script can be symlinked into a directory listed in PATH, or called 621 with an absolute path. 622 623 EXAMPLES 624 1. ./build.sh tools kernel=GENERIC 625 626 Build a new toolchain, and use the new toolchain to configure and 627 build a new GENERIC kernel. 628 629 2. ./build.sh -U distribution 630 631 Using unprivileged mode, build a complete distribution to a DESTDIR 632 directory that build.sh selects (and will display). 633 634 3. # ./build.sh -U install=/ 635 636 As root, install to / the distribution that was built by example 2. 637 Even though this is run as root, -U is required so that the permis- 638 sions stored in DESTDIR/METALOG are correctly applied to the files 639 as they're copied to /. 640 641 4. ./build.sh -U -u release 642 643 Using unprivileged mode, build a complete release to DESTDIR and 644 RELEASEDIR directories that build.sh selects (and will display). 645 MKUPDATE=yes (-u) is set to prevent the ``make cleandir'', so that 646 if this is run after example 2, it doesn't need to redo that portion 647 of the release build. 648 649 OBSOLETE VARIABLES 650 NBUILDJOBS Use the make(1) option -j, instead. 651 652 USE_NEW_TOOLCHAIN 653 The new toolchain is now the default. To disable, use 654 TOOLCHAIN_MISSING=yes. 655 656 SEE ALSO 657 make(1), hier(7), release(7) 658 659 HISTORY 660 The build.sh based build scheme was introduced for NetBSD 1.6 as 661 USE_NEW_TOOLCHAIN, and re-worked to TOOLCHAIN_MISSING after that. 662 663 BUGS 664 A few platforms are not yet using this build system. 665 666 NetBSD August 7, 2003 NetBSD 667
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