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33 .Nd system build information
37 contains settings that control the compilation of the
42 is generally created by the system administrator when the values need
43 to be changed from their defaults.
47 is not to run commands or perform compilation actions
49 Instead, it is included by the various makefiles in
51 which conditionalize their internal actions according to the settings
56 file is included from the appropriate
58 which specifies the default settings for all the available options.
59 Options need only be specified in
61 when the system administrator wishes to override these defaults.
63 The build procedures occur in three areas: world, kernel, and
67 may be applicable during builds in one, two, or all of these areas.
68 They may be specified for a particular build via the
73 The following lists provide a name and short description for each
74 variable you can use during the indicated builds.
75 The values of variables flagged as
77 are ignored; the variable being set at all (even to
81 causes it to be treated as if it were set.
83 The following list provides a name and short description for variables
84 that are used for all builds, or are used by the
86 for things other than builds.
90 Controls which processor should be targeted for generated code.
91 This controls processor-specific optimizations in certain code
92 (currently only OpenSSL) as well as modifying the value of
96 to contain the appropriate optimization directive to
98 The automatic setting of
102 may be overridden using the
106 variables, respectively. Refer to
107 .Pa /usr/share/examples/etc/defaults/make.conf
108 for a list of recognized
113 Controls which GCC version to use by default.
116 so as not to interfere with overrides from userland.
117 We currently recommend that an override NOT be set in
119 Currently accepted values are
127 Controls the compiler setting when compiling C code.
128 Optimization levels above
133 is provided as a set of
135 settings suggested by
136 .An "Bruce Evans" Aq bde@FreeBSD.org
137 for developing and testing changes.
138 They can be used, if set, by:
139 .Bd -literal -offset indent
144 Setting this variable will prevent CPU specific compiler flags
145 from being automatically added to
152 to update your source tree as the final step when doing a
153 .Dq Li "make update" .
156 Controls the compiler settings when compiling C++ code.
158 is initially set to the value of
160 If you want to add to the
168 the default install command.
169 To have components compared before doing the install, use
170 .Bd -literal -offset indent
175 List any directories that should be entered when running make
180 Controls the shell used internally by
182 to process the command scripts in makefiles.
187 all currently supported.
188 .Bd -literal -offset indent
191 .It Va MODULES_OVERRIDE
193 Set to a list of modules to build instead of all of them.
194 .It Va MTREE_FOLLOWS_SYMLINKS
203 Set this to not update the doc tree during
204 .Dq Li "make update" .
207 Set this to the flag to pass the
210 If set to a blank value, components will be installed with debugging
216 to update your source tree with
217 .Dq Li "make update" .
225 .Dq Li "make update" .
227 .Pa /usr/local/bin/cvsup .
233 .Dq Li "make update" .
235 .Dq Fl g L Ar 2 Fl P Ar - .
238 The hostname of the sup server to use when doing
239 .Dq Li "make update" .
245 .Dq Li "make update" .
251 .Dq Li "make update" .
257 .Dq Li "make update" .
263 .Dq Li "make update" .
269 when WARNS is in effect.
276 The default is to use
280 The following list provides a name and short description for variables
281 that are only used doing a kernel build:
283 .It Va BOOT_COMCONSOLE_PORT
285 The port address to use for the console if the boot blocks have
286 been configured to use a serial console instead of the keyboard/video card.
287 .It Va BOOT_COMCONSOLE_SPEED
289 The baud rate to use for the console if the boot blocks have
290 been configured to use a serial console instead of the keyboard/video card.
293 Controls the compiler settings when building the
295 Optimization levels above
298 are not guaranteed to work.
301 Controls which kernel configurations will be
303 .Dq Li "${MAKE} buildkernel"
305 .Dq Li "${MAKE} installkernel" .
307 .Bd -literal -offset indent
308 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
311 will build the kernels specified by the config files
312 .Pa MINE , DEBUG , GENERIC ,
315 and install the kernel specified by the config file
319 .It Va LOADER_TFTP_SUPPORT
321 While not a buildkernel-affected option, there is no better place for this.
324 loader retrieves the kernel via NFS.
325 Defining this and recompiling
326 .Pa /usr/src/sys/boot
327 will cause it to retrieve the kernel via TFTP.
328 This allows pxeboot to load a custom BOOTP diskless kernel yet
329 still mount the server's
331 rather than load the server's kernel.
332 .It Va NO_CPU_COPTFLAGS
334 Setting this variable will prevent CPU specific compiler flags
335 from being automatically added to
338 .It Va NO_KERNELCLEAN
340 Set this to skip the clean target when using
341 .Dq Li "${MAKE} buildkernel" .
342 .It Va NO_KERNELCONFIG
344 Set this to skip running
347 .Dq Li "${MAKE} buildkernel" .
348 .It Va NO_KERNELDEPEND
350 Set this to skip running
351 .Dq Li "${MAKE} depend"
353 .Dq Li "${MAKE} buildkernel" .
354 .It Va NO_KERNEL_OLD_STRIP
356 Set this to skip stripping debugging symbols from old kernel and modules
357 (kernel.old, modules.old) during
358 .Dq Li "${MAKE} installkernel" .
361 Set to not build modules with the kernel.
364 The following list provides a name and short description for variables
365 that are used during the world build:
367 .It Va ENABLE_SUID_K5SU
369 Set this if you wish to use the k5su utility.
370 Otherwise, it will be installed without the set-user-ID bit set.
371 This is only relevant if
374 .It Va ENABLE_SUID_SSH
378 with the setuid bit turned on.
379 .It Va MODULES_WITH_WORLD
381 Set to build modules with the system instead of the kernel.
384 Set to not build BIND.
387 Set to not build crypto code.
390 Set to not build CVS.
393 Set to not build games.
396 Set to not build the older version of GCC (3.4).
403 Set to not build isdn4bsd package.
406 Set to not build IP Filter package.
411 (reentrant version of
417 and related programs.
418 .It Va NO_MAILWRAPPER
432 Set to not build Objective C support.
435 Set to not build OpenSSH.
438 Set to not build OpenSSL (implies
444 and related programs.
447 Set to not enter the share subdirectory.
450 Set to not compile in X\-Windows support (e.g.\&
454 Set this to disable cleaning during
455 .Dq Li "make buildworld" .
456 This should not be set unless you know what you are doing.
460 .Dq Li "${MAKE} clean"
462 .Dq Li "${MAKE} cleandir" .
465 Set to not install certain components with flag schg.
466 This is useful in a jailed environment.
469 Set to not make or install
472 .It Va NOINFOCOMPRESS
474 Set to not compress the info pages.
477 Set to not build manual pages
480 Set to not compress the manual pages.
483 Set to avoid compiling profiled libraries.
486 Set to disable the installation of
488 with the set-user-ID bit on.
493 configuration file to use at install time.
494 The value should include the full path to the
497 .Pa /etc/mail/myconfig.mc .
498 Use with caution as a make install will overwrite any existing
499 .Pa /etc/mail/sendmail.cf .
503 .It Va SENDMAIL_SUBMIT_MC
507 configuration file for mail submission
508 to use at install time.
509 The value should include the full path to the
512 .Pa /etc/mail/mysubmit.mc .
513 Use with caution as a make install will overwrite any existing
514 .Pa /etc/mail/submit.cf .
515 .It Va SENDMAIL_ADDITIONAL_MC
519 files which should be built into
522 The value should include the full path to the
526 .Pa /etc/mail/bar.mc .
527 .It Va SENDMAIL_CF_DIR
529 Override the default location for the
531 configuration files used to build a
536 .It Va SENDMAIL_M4_FLAGS
545 .It Va SENDMAIL_CFLAGS
547 Flags to pass to the compile command when building
551 flags can be used to provide SASL support with setting such as:
552 .Bd -literal -offset indent
553 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
554 SENDMAIL_LDFLAGS=-L/usr/local/lib
555 SENDMAIL_LDADD=-lsasl
557 .It Va SENDMAIL_LDFLAGS
561 command when building
563 .It Va SENDMAIL_LDADD
565 Flags to add to the end of the
567 command when building
569 .It Va SENDMAIL_DPADD
571 Extra dependencies to add when building
573 .It Va SENDMAIL_SET_USER_ID
577 as a set-user-ID root binary instead of a set-group-ID binary
579 .Pa /etc/mail/submit.{cf,mc} .
580 Use of this flag is not recommended and the alternative advice in
582 should be followed instead if at all possible.
583 .It Va SENDMAIL_MAP_PERMS
585 Mode to use when generating alias and map database files using
586 .Pa /etc/mail/Makefile .
587 The default value is 0640.
594 to configure the system's default threading library.
597 .It Va TOP_TABLE_SIZE
600 uses a hash table for the user names. The size of this hash can be tuned
601 to match the number of local users. The table size should be a prime number
602 approximately twice as large as the number of lines in
604 The default number is 20011.
607 Set to build the IDEA encryption code.
608 This code is patented in the USA and many European countries.
610 .Em "YOUR RESPONSIBILITY"
611 to determine if you can legally use IDEA.
612 .It Va WANT_INSTALLER
614 Set to build the installer.
617 Set this to build Kerberos5 (KTH Heimdal).
619 This is still experimental code.
622 The following list provides a name and short description for variables
623 that are used when building documentation.
627 The list of languages and encodings to build and install.
630 The default format for system documentation, depends on your
634 for simple printers or
636 for postscript or graphics printers with a ghostscript
638 .It Va GROFF_PAPER_SIZE
640 The default paper size for
648 .Bl -tag -width /etc/defaults/make.conf -compact
649 .It Pa /etc/defaults/make.conf
650 .It Pa /etc/make.conf
651 .It Pa /usr/src/Makefile
652 .It Pa /usr/src/Makefile.inc1
663 file appeared sometime before
666 This manual page was written by
667 .An Mike W. Meyer Aq mwm@mired.org .
669 This manual page may occasionally be out of date with respect to
670 the options currently available for use in
673 .Pa /etc/defaults/make.conf
674 file for the latest options which are available.