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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:
140 .Bd -literal -offset indent
145 Setting this variable will prevent CPU specific compiler flags
146 from being automatically added to
151 Controls the compiler settings when compiling C++ code.
153 is initially set to the value of
155 If you want to add to the
163 the default install command.
164 To have components compared before doing the install, use
165 .Bd -literal -offset indent
170 List any directories that should be entered when running make
175 Controls the shell used internally by
177 to process the command scripts in makefiles.
182 all currently supported.
183 .Bd -literal -offset indent
186 .It Va MODULES_OVERRIDE
188 Set to a list of modules to build instead of all of them.
189 .It Va MTREE_FOLLOWS_SYMLINKS
198 Set this to not update the doc tree during
199 .Dq Li "make update" .
202 Set this to the flag to pass the
205 If set to a blank value, components will be installed with debugging
211 to update your ports with
212 .Dq Li "make update" .
218 .Dq Li "make update" .
224 .Dq Li "make update" .
229 The hostname of the sup server to use when doing
230 .Dq Li "make update" .
236 .Dq Li "make update" .
238 .Pa /usr/share/examples/cvsup/standard\-supfile .
244 .Dq Li "make update" .
246 .Pa /usr/share/examples/cvsup/secure\-supfile .
252 .Dq Li "make update" .
254 .Pa /usr/share/examples/cvsup/secure\-supfile .
260 .Dq Li "make update" .
262 .Pa /usr/share/examples/cvsup/doc\-supfile .
268 when WARNS is in effect.
271 The following list provides a name and short description for variables
272 that are only used doing a kernel build:
274 .It Va BOOT_COMCONSOLE_PORT
276 The port address to use for the console if the boot blocks have
277 been configured to use a serial console instead of the keyboard/video card.
278 .It Va BOOT_COMCONSOLE_SPEED
280 The baud rate to use for the console if the boot blocks have
281 been configured to use a serial console instead of the keyboard/video card.
284 Controls the compiler settings when building the
286 Optimization levels above
289 are not guaranteed to work.
292 Controls which kernel configurations will be
294 .Dq Li "${MAKE} buildkernel"
296 .Dq Li "${MAKE} installkernel" .
298 .Bd -literal -offset indent
299 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
302 will build the kernels specified by the config files
303 .Pa MINE , DEBUG , GENERIC ,
306 and install the kernel specified by the config file
310 .It Va LOADER_TFTP_SUPPORT
312 While not a buildkernel-affected option, there is no better place for this.
315 loader retrieves the kernel via NFS.
316 Defining this and recompiling
317 .Pa /usr/src/sys/boot
318 will cause it to retrieve the kernel via TFTP.
319 This allows pxeboot to load a custom BOOTP diskless kernel yet
320 still mount the server's
322 rather than load the server's kernel.
323 .It Va NO_CPU_COPTFLAGS
325 Setting this variable will prevent CPU specific compiler flags
326 from being automatically added to
329 .It Va NO_KERNELCLEAN
331 Set this to skip the clean target when using
332 .Dq Li "${MAKE} buildkernel" .
333 .It Va NO_KERNELCONFIG
335 Set this to skip running
338 .Dq Li "${MAKE} buildkernel" .
339 .It Va NO_KERNELDEPEND
341 Set this to skip running
342 .Dq Li "${MAKE} depend"
344 .Dq Li "${MAKE} buildkernel" .
345 .It Va NO_KERNEL_OLD_STRIP
347 Set this to skip stripping debugging symbols from old kernel and modules
348 (kernel.old, modules.old) during
349 .Dq Li "${MAKE} installkernel" .
352 Set to not build modules with the kernel.
355 The following list provides a name and short description for variables
356 that are used during the world build:
358 .It Va ENABLE_SUID_K5SU
360 Set this if you wish to use the k5su utility.
361 Otherwise, it will be installed without the set-user-ID bit set.
362 This is only relevant if
365 .It Va ENABLE_SUID_SSH
369 with the setuid bit turned on.
370 .It Va MODULES_WITH_WORLD
372 Set to build modules with the system instead of the kernel.
375 Set to not build BIND.
378 Set to not build crypto code.
381 Set to not build CVS.
386 and related libraries.
389 Set to not build games.
392 Set to not build the older version of GCC (3.4).
399 Set to not build isdn4bsd package.
402 Set to not build IP Filter package.
407 (reentrant version of
413 and related programs.
414 .It Va NO_MAILWRAPPER
428 Set to not build Objective C support.
431 Set to not build OpenSSH.
434 Set to not build OpenSSL (implies
440 and related programs.
443 Set to not enter the share subdirectory.
446 Set to not compile in X\-Windows support (e.g.\&
450 Set this to disable cleaning during
451 .Dq Li "make buildworld" .
452 This should not be set unless you know what you are doing.
456 .Dq Li "${MAKE} clean"
458 .Dq Li "${MAKE} cleandir" .
461 Set to not install certain components with flag schg.
462 This is useful in a jailed environment.
465 Set to not make or install
468 .It Va NOINFOCOMPRESS
470 Set to not compress the info pages.
473 Set to not build manual pages
476 Set to not compress the manual pages.
479 Set to avoid compiling profiled libraries.
482 Set to disable the installation of
484 with the set-user-ID bit on.
489 configuration file to use at install time.
490 The value should include the full path to the
493 .Pa /etc/mail/myconfig.mc .
494 Use with caution as a make install will overwrite any existing
495 .Pa /etc/mail/sendmail.cf .
499 .It Va SENDMAIL_SUBMIT_MC
503 configuration file for mail submission
504 to use at install time.
505 The value should include the full path to the
508 .Pa /etc/mail/mysubmit.mc .
509 Use with caution as a make install will overwrite any existing
510 .Pa /etc/mail/submit.cf .
511 .It Va SENDMAIL_ADDITIONAL_MC
515 files which should be built into
518 The value should include the full path to the
522 .Pa /etc/mail/bar.mc .
523 .It Va SENDMAIL_CF_DIR
525 Override the default location for the
527 configuration files used to build a
532 .It Va SENDMAIL_M4_FLAGS
541 .It Va SENDMAIL_CFLAGS
543 Flags to pass to the compile command when building
547 flags can be used to provide SASL support with setting such as:
548 .Bd -literal -offset indent
549 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
550 SENDMAIL_LDFLAGS=-L/usr/local/lib
551 SENDMAIL_LDADD=-lsasl
553 .It Va SENDMAIL_LDFLAGS
557 command when building
559 .It Va SENDMAIL_LDADD
561 Flags to add to the end of the
563 command when building
565 .It Va SENDMAIL_DPADD
567 Extra dependencies to add when building
569 .It Va SENDMAIL_SET_USER_ID
573 as a set-user-ID root binary instead of a set-group-ID binary
575 .Pa /etc/mail/submit.{cf,mc} .
576 Use of this flag is not recommended and the alternative advice in
578 should be followed instead if at all possible.
579 .It Va SENDMAIL_MAP_PERMS
581 Mode to use when generating alias and map database files using
582 .Pa /etc/mail/Makefile .
583 The default value is 0640.
590 to configure the system's default threading library.
593 .It Va TOP_TABLE_SIZE
596 uses a hash table for the user names. The size of this hash can be tuned
597 to match the number of local users. The table size should be a prime number
598 approximately twice as large as the number of lines in
600 The default number is 20011.
603 Set to build the IDEA encryption code.
604 This code is patented in the USA and many European countries.
606 .Em "YOUR RESPONSIBILITY"
607 to determine if you can legally use IDEA.
610 Set this to build Kerberos5 (KTH Heimdal).
612 This is still experimental code.
615 The following list provides a name and short description for variables
616 that are used when building documentation.
620 The list of languages and encodings to build and install.
623 The default format for system documentation, depends on your
627 for simple printers or
629 for postscript or graphics printers with a ghostscript
631 .It Va GROFF_PAPER_SIZE
633 The default paper size for
641 .Bl -tag -width /etc/defaults/make.conf -compact
642 .It Pa /etc/defaults/make.conf
643 .It Pa /etc/make.conf
644 .It Pa /usr/src/Makefile
645 .It Pa /usr/src/Makefile.inc1
656 file appeared sometime before
659 This manual page was written by
660 .An Mike W. Meyer Aq mwm@mired.org .
662 This manual page may occasionally be out of date with respect to
663 the options currently available for use in
666 .Pa /etc/defaults/make.conf
667 file for the latest options which are available.