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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
150 Controls the compiler settings when compiling C++ code.
152 is initially set to the value of
154 If you want to add to the
162 the default install command.
163 To have components compared before doing the install, use
164 .Bd -literal -offset indent
169 List any directories that should be entered when running make
174 Controls the shell used internally by
176 to process the command scripts in makefiles.
181 all currently supported.
182 .Bd -literal -offset indent
185 .It Va MODULES_OVERRIDE
187 Set to a list of modules to build instead of all of them.
188 .It Va MTREE_FOLLOWS_SYMLINKS
197 Set this to the flag to pass the
200 If set to a blank value, components will be installed with debugging
208 The default is to use
217 Set this to disable name caching in the nsswitch subsystem.
218 The generic caching daemon,
220 will not be built either if this option is set.
223 The following list provides a name and short description for variables
224 that are only used doing a kernel build:
226 .It Va BOOT_COMCONSOLE_PORT
228 The port address to use for the console if the boot blocks have
229 been configured to use a serial console instead of the keyboard/video card.
230 .It Va BOOT_COMCONSOLE_SPEED
232 The baud rate to use for the console if the boot blocks have
233 been configured to use a serial console instead of the keyboard/video card.
236 Controls the compiler settings when building the
238 Optimization levels above
241 are not guaranteed to work.
244 Controls which kernel configurations will be
246 .Dq Li "${MAKE} buildkernel"
248 .Dq Li "${MAKE} installkernel" .
250 .Bd -literal -offset indent
251 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
254 will build the kernels specified by the config files
255 .Pa MINE , DEBUG , GENERIC ,
258 and install the kernel specified by the config file
262 .It Va LOADER_TFTP_SUPPORT
264 While not a buildkernel-affected option, there is no better place for this.
267 loader retrieves the kernel via NFS.
268 Defining this and recompiling
269 .Pa /usr/src/sys/boot
270 will cause it to retrieve the kernel via TFTP.
271 This allows pxeboot to load a custom BOOTP diskless kernel yet
272 still mount the server's
274 rather than load the server's kernel.
275 .It Va NO_CPU_COPTFLAGS
277 Setting this variable will prevent CPU specific compiler flags
278 from being automatically added to
281 .It Va NO_KERNELCLEAN
283 Set this to skip the clean target when using
284 .Dq Li "${MAKE} buildkernel" .
285 .It Va NO_KERNELCONFIG
287 Set this to skip running
290 .Dq Li "${MAKE} buildkernel" .
291 .It Va NO_KERNELDEPEND
293 Set this to skip running
294 .Dq Li "${MAKE} depend"
296 .Dq Li "${MAKE} buildkernel" .
297 .It Va NO_KERNEL_OLD_STRIP
299 Set this to skip stripping debugging symbols from old kernel and modules
300 (kernel.old, modules.old) during
301 .Dq Li "${MAKE} installkernel" .
304 Set to not build modules with the kernel.
307 The following list provides a name and short description for variables
308 that are used during the world build:
310 .It Va ENABLE_SUID_K5SU
312 Set this if you wish to use the k5su utility.
313 Otherwise, it will be installed without the set-user-ID bit set.
314 This is only relevant if
317 .It Va ENABLE_SUID_SSH
321 with the setuid bit turned on.
322 .It Va MODULES_WITH_WORLD
324 Set to build modules with the system instead of the kernel.
327 Set to not build BIND.
330 Set to not build crypto code.
333 Set to not build CVS.
336 Set to not build games.
339 Set to not build the older version of GCC (3.4).
346 Set to not build isdn4bsd package.
349 Set to not build IP Filter package.
354 (reentrant version of
360 and related programs.
361 .It Va NO_MAILWRAPPER
375 Set to not build Objective C support.
378 Set to not build OpenSSH.
381 Set to not build OpenSSL (implies
387 and related programs.
390 Set to not enter the share subdirectory.
393 Set to not compile in X\-Windows support (e.g.\&
397 Set this to disable cleaning during
398 .Dq Li "make buildworld" .
399 This should not be set unless you know what you are doing.
403 .Dq Li "${MAKE} clean"
405 .Dq Li "${MAKE} cleandir" .
408 Set to not install certain components with flag schg.
409 This is useful in a jailed environment.
412 Set to not make or install
415 .It Va NOINFOCOMPRESS
417 Set to not compress the info pages.
420 Set to not build manual pages
423 Set to not compress the manual pages.
426 Set to avoid compiling profiled libraries.
429 Set to disable the installation of
431 with the set-user-ID bit on.
436 configuration file to use at install time.
437 The value should include the full path to the
440 .Pa /etc/mail/myconfig.mc .
441 Use with caution as a make install will overwrite any existing
442 .Pa /etc/mail/sendmail.cf .
446 .It Va SENDMAIL_SUBMIT_MC
450 configuration file for mail submission
451 to use at install time.
452 The value should include the full path to the
455 .Pa /etc/mail/mysubmit.mc .
456 Use with caution as a make install will overwrite any existing
457 .Pa /etc/mail/submit.cf .
458 .It Va SENDMAIL_ADDITIONAL_MC
462 files which should be built into
465 The value should include the full path to the
469 .Pa /etc/mail/bar.mc .
470 .It Va SENDMAIL_CF_DIR
472 Override the default location for the
474 configuration files used to build a
479 .It Va SENDMAIL_M4_FLAGS
488 .It Va SENDMAIL_CFLAGS
490 Flags to pass to the compile command when building
494 flags can be used to provide SASL support with setting such as:
495 .Bd -literal -offset indent
496 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
497 SENDMAIL_LDFLAGS=-L/usr/local/lib
498 SENDMAIL_LDADD=-lsasl
500 .It Va SENDMAIL_LDFLAGS
504 command when building
506 .It Va SENDMAIL_LDADD
508 Flags to add to the end of the
510 command when building
512 .It Va SENDMAIL_DPADD
514 Extra dependencies to add when building
516 .It Va SENDMAIL_SET_USER_ID
520 as a set-user-ID root binary instead of a set-group-ID binary
522 .Pa /etc/mail/submit.{cf,mc} .
523 Use of this flag is not recommended and the alternative advice in
525 should be followed instead if at all possible.
526 .It Va SENDMAIL_MAP_PERMS
528 Mode to use when generating alias and map database files using
529 .Pa /etc/mail/Makefile .
530 The default value is 0640.
537 to configure the system's default threading library.
540 .It Va TOP_TABLE_SIZE
543 uses a hash table for the user names. The size of this hash can be tuned
544 to match the number of local users. The table size should be a prime number
545 approximately twice as large as the number of lines in
547 The default number is 20011.
550 Set to build the IDEA encryption code.
551 This code is patented in the USA and many European countries.
553 .Em "YOUR RESPONSIBILITY"
554 to determine if you can legally use IDEA.
555 .It Va WANT_INSTALLER
557 Set to build the installer.
560 Set this to build Kerberos5 (KTH Heimdal).
562 This is still experimental code.
565 The following list provides a name and short description for variables
566 that are used when building documentation.
570 The list of languages and encodings to build and install.
573 The default format for system documentation, depends on your
577 for simple printers or
579 for postscript or graphics printers with a ghostscript
581 .It Va GROFF_PAPER_SIZE
583 The default paper size for
591 .Bl -tag -width /etc/defaults/make.conf -compact
592 .It Pa /etc/defaults/make.conf
593 .It Pa /etc/make.conf
594 .It Pa /usr/src/Makefile
595 .It Pa /usr/src/Makefile.inc1
606 file appeared sometime before
609 This manual page was written by
610 .An Mike W. Meyer Aq mwm@mired.org .
612 This manual page may occasionally be out of date with respect to
613 the options currently available for use in
616 .Pa /etc/defaults/make.conf
617 file for the latest options which are available.