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30 .Nd system build information
34 contains system-wide settings that will apply to every build using
39 This is achieved as follows:
41 processes the system makefile
43 before any other file by default, and
50 uses the standard makefile syntax.
53 should not specify any dependencies to
59 variables that control the actions of other makefiles.
61 The default location of
65 though an alternative location can be specified in the
69 You may need to override the location of
71 if the system-wide settings are not suitable for a particular build.
76 effectively resets all build controls to their defaults.
78 The primary purpose of
80 is to control the compilation of the
82 sources, documentation, and ported applications,
83 which are usually found in
88 As a rule, the system administrator creates
90 when the values of certain control variables need to be changed
93 The system build procedures occur in four broad areas:
94 the world, the kernel, documentation and ports.
97 may be applicable in one, two, or all four of these areas.
98 In addition, control variables can be specified
99 for a particular build via the
105 In the case of world and kernel builds it is possible to put these variables
110 This way the environment for documentation and ports builds is not polluted
111 by unrelated variables.
113 The following lists provide a name and short description for each
114 variable you can use during the indicated builds.
118 are ignored; the variable being
124 be treated as if it were set.
126 The following list provides a name and short description for variables
127 that are used for all builds, or are used by the
129 for things other than builds.
131 .It Va ALWAYS_CHECK_MAKE
133 Instructs the top-level makefile in the source tree (normally
138 Normally this is only done for the world and buildworld targets to handle
139 upgrades from older versions of
143 Controls the compiler setting when compiling C code.
144 Optimization levels other than
151 Controls which processor should be targeted for generated
153 This controls processor-specific optimizations in
154 certain code (currently only OpenSSL) as well as modifying
159 to contain the appropriate optimization directive to
161 The automatic setting of
163 may be overridden using the
167 .Pa /usr/share/examples/etc/make.conf
168 for a list of recognized
173 Controls the compiler settings when compiling C++ code.
175 is initially set to the value of
186 Select the compiler for DTS (Device Tree Syntax) file.
188 is initially set to the value of dtc
191 the default install command.
192 To install only files for which the target differs or does not exist, use
193 .Bd -literal -offset indent
196 Note that some makefiles (including those in
198 may hardcode options for the supplied install command.
201 List any directories that should be entered when doing
207 Controls the shell used internally by
209 to process the command scripts in makefiles.
214 all currently supported.
217 .It Va MTREE_FOLLOWS_SYMLINKS
226 Setting this variable will prevent CPU specific compiler flags
227 from being automatically added to
231 .Ss "BUILDING THE KERNEL"
232 The following list provides a name and short description for variables
233 that are only used doing a kernel build:
237 Controls the amount of time the kernel waits for a console keypress
238 before booting the default kernel.
239 The value is approximately milliseconds.
240 Keypresses are accepted by the BIOS before booting from disk,
241 making it possible to give custom boot parameters even when this is
245 Controls the compiler settings when building the
247 Optimization levels above
248 .Oo Fl O ( O2 , No ...\& ) Oc
249 are not guaranteed to work.
252 Controls which kernel configurations will be
254 .Dq Li "${MAKE} buildkernel"
256 .Dq Li "${MAKE} installkernel" .
258 .Bd -literal -offset indent
259 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
262 will build the kernels specified by the config files
263 .Pa MINE , DEBUG , GENERIC ,
266 and install the kernel specified by the config file
270 .It Va MODULES_OVERRIDE
272 Set to a list of modules to build instead of all of them.
273 .It Va NO_KERNELCLEAN
275 Set this to skip running
276 .Dq Li "${MAKE} clean"
278 .Dq Li "${MAKE} buildkernel" .
279 .It Va NO_KERNELCONFIG
281 Set this to skip running
284 .Dq Li "${MAKE} buildkernel" .
287 Set this to skip running
290 .Dq Li "${MAKE} buildkernel" .
293 Set to not build modules with the kernel.
295 Set this to the list of ports you wish to rebuild every time the kernel
297 .It Va WITHOUT_MODULES
299 Set to a list of modules to exclude from the build.
301 somewhat easier way to exclude modules you are certain you will never
303 .Va MODULES_OVERRIDE .
306 .Va MODULES_OVERRIDE .
308 .Ss "BUILDING THE WORLD"
309 The following list provides a name and short description for variables
310 that are used during the world build:
312 .It Va BOOT_COMCONSOLE_PORT
314 The port address to use for the console if the boot blocks have
315 been configured to use a serial console instead of the keyboard/video card.
316 .It Va BOOT_COMCONSOLE_SPEED
318 The baud rate to use for the console if the boot blocks have
319 been configured to use a serial console instead of the keyboard/video card.
320 .It Va BOOT_PXELDR_ALWAYS_SERIAL
322 Compile in the code into
324 that forces the use of a serial console.
325 This is analogous to the
330 .It Va BOOT_PXELDR_PROBE_KEYBOARD
332 Compile in the code into
334 that probes the keyboard.
335 If no keyboard is found, boot with the dual console configuration.
336 This is analogous to the
341 .It Va ENABLE_SUID_K5SU
343 Set this if you wish to use the ksu utility.
344 Otherwise, it will be
345 installed without the set-user-ID bit set.
346 .It Va ENABLE_SUID_NEWGRP
350 with the set-user-ID bit set.
353 will not be able to change users' groups.
354 .It Va LOADER_TFTP_SUPPORT
358 loader retrieves the kernel via NFS.
359 Defining this and recompiling
361 will cause it to retrieve the kernel via TFTP.
364 to load a custom BOOTP diskless kernel yet
365 still mount the server's
367 rather than load the server's kernel.
368 .It Va LOADER_FIREWIRE_SUPPORT
370 Defining this and recompiling
371 .Pa /usr/src/stand/i386
376 and allow access over FireWire(IEEE1394) using
378 Currently, only i386 and amd64 are supported.
381 Space-delimited list of one or more MACHINE and/or MACHINE_ARCH values
382 for which section 4 man pages will be installed.
385 installs all available architectures.
386 It is also the default value.
387 .It Va MODULES_WITH_WORLD
389 Set to build modules with the system instead of the kernel.
392 Set this to disable cleaning during
393 .Dq Li "make buildworld" .
394 This should not be set unless you know what you are doing.
398 .Dq Li "${MAKE} clean"
400 .Dq Li "${MAKE} cleandir" .
401 .It Va WITH_MANCOMPRESS
403 Set to install manual pages compressed.
404 .It Va WITHOUT_MANCOMPRESS
406 Set to install manual pages uncompressed.
409 Set to not build in the
418 statically linked, this can be bad.
419 If set, every utility that uses
421 will be linked statically.
422 .It Va PKG_REPO_SIGNING_KEY
424 Path to rsa private key passed to
426 to sign packages created when building the
428 target, i.e.: pkgbase.
429 The variable is named the same in
431 so it will automatically be picked up when building pkgbase with poudriere.
436 without support for network address translation (NAT).
437 .It Va PPP_NO_NETGRAPH
441 without support for Netgraph.
446 without support for RADIUS.
449 Set to disable the installation of
451 as a set-user-ID root program.
452 .It Va SENDMAIL_ADDITIONAL_MC
456 files which should be built into
459 The value should include the full path to the
462 .Pa /etc/mail/foo.mc ,
463 .Pa /etc/mail/bar.mc .
464 .It Va SENDMAIL_ALIASES
468 files to rebuild when using
469 .Pa /etc/mail/Makefile .
471 .Pa /etc/mail/aliases .
472 .It Va SENDMAIL_CFLAGS
474 Flags to pass to the compile command when building
478 flags can be used to provide SASL support with setting such as:
479 .Bd -literal -offset indent
480 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
481 SENDMAIL_LDFLAGS=-L/usr/local/lib
482 SENDMAIL_LDADD=-lsasl
484 .It Va SENDMAIL_CF_DIR
486 Override the default location for the
488 configuration files used to build a
493 .It Va SENDMAIL_DPADD
495 Extra dependencies to add when building
497 .It Va SENDMAIL_LDADD
499 Flags to add to the end of the
501 command when building
503 .It Va SENDMAIL_LDFLAGS
507 command when building
509 .It Va SENDMAIL_M4_FLAGS
518 .It Va SENDMAIL_MAP_PERMS
520 Mode to use when generating alias and map database files using
521 .Pa /etc/mail/Makefile .
522 The default value is 0640.
523 .It Va SENDMAIL_MAP_SRC
525 Additional maps to rebuild when using
526 .Pa /etc/mail/Makefile .
536 maps are always rebuilt if they exist.
537 .It Va SENDMAIL_MAP_TYPE
539 Database map type to use when generating map database files using
540 .Pa /etc/mail/Makefile .
541 The default value is hash.
542 The alternative is btree.
547 configuration file to use at install time.
548 The value should include the full path to the
551 .Pa /etc/mail/myconfig.mc .
552 Use with caution as a make install will overwrite any existing
553 .Pa /etc/mail/sendmail.cf .
557 .It Va SENDMAIL_SET_USER_ID
561 as a set-user-ID root binary instead of a set-group-ID binary
563 .Pa /etc/mail/submit.{cf,mc} .
564 Use of this flag is not recommended and the alternative advice in
566 should be followed instead if at all possible.
567 .It Va SENDMAIL_START_SCRIPT
570 .Pa /etc/mail/Makefile
571 to start, stop, and restart
574 .Pa /etc/rc.d/sendmail .
575 .It Va SENDMAIL_SUBMIT_MC
579 configuration file for mail submission
580 to use at install time.
581 The value should include the full path to the
584 .Pa /etc/mail/mysubmit.mc .
585 Use with caution as a make install will overwrite any existing
586 .Pa /etc/mail/submit.cf .
587 .It Va TOP_TABLE_SIZE
590 uses a hash table for the user names.
591 The size of this hash can be tuned to match the number of local users.
592 The table size should be a prime number
593 approximately twice as large as the number of lines in
595 The default number is 20011.
596 .It Va WANT_FORCE_OPTIMIZATION_DOWNGRADE
598 Causes the system compiler to be built such that it forces high optimization
599 levels to a lower one.
602 and above is known to trigger known optimizer bugs at various
604 The value assigned is the highest optimization value used.
606 .Ss "BUILDING DOCUMENTATION"
607 The following list provides a name and short description for variables
608 that are used when building documentation.
609 .Bl -tag -width ".Va PRINTERDEVICE"
612 The list of languages to build and install when building documentation
617 The default format for system documentation in
618 .Pa /usr/src/share/doc ,
619 depends on your printer.
622 for simple printers, or
624 for postscript or graphics printers with a ghostscript
628 Several make variables can be set that affect the building of ports.
629 These variables and their effects are documented in
636 .Bl -tag -width ".Pa /usr/share/examples/etc/make.conf" -compact
637 .It Pa /etc/make.conf
638 .It Pa /usr/doc/Makefile
639 .It Pa /usr/ports/Makefile
640 .It Pa /usr/share/examples/etc/make.conf
641 .It Pa /usr/share/mk/sys.mk
642 .It Pa /usr/src/Makefile
643 .It Pa /usr/src/Makefile.inc1
650 .Xr style.Makefile 5 ,
657 file appeared sometime before
661 manual page was written by
662 .An Mike W. Meyer Aq Mt mwm@mired.org .
668 are environment variables and should not be set in
670 or as command line arguments to
672 but in make's environment.
674 This manual page may occasionally be out of date with respect to
675 the options currently available for use in
678 .Pa /usr/share/examples/etc/make.conf
679 file for the latest options which are available.