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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
207 when WARNS is in effect.
215 Set this to disable name caching in the nsswitch subsystem.
216 The generic caching daemon,
218 will not be built either if this option is set.
221 The following list provides a name and short description for variables
222 that are only used doing a kernel build:
224 .It Va BOOT_COMCONSOLE_PORT
226 The port address to use for the console if the boot blocks have
227 been configured to use a serial console instead of the keyboard/video card.
228 .It Va BOOT_COMCONSOLE_SPEED
230 The baud rate to use for the console if the boot blocks have
231 been configured to use a serial console instead of the keyboard/video card.
234 Controls the compiler settings when building the
236 Optimization levels above
239 are not guaranteed to work.
242 Controls which kernel configurations will be
244 .Dq Li "${MAKE} buildkernel"
246 .Dq Li "${MAKE} installkernel" .
248 .Bd -literal -offset indent
249 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
252 will build the kernels specified by the config files
253 .Pa MINE , DEBUG , GENERIC ,
256 and install the kernel specified by the config file
260 .It Va LOADER_TFTP_SUPPORT
262 While not a buildkernel-affected option, there is no better place for this.
265 loader retrieves the kernel via NFS.
266 Defining this and recompiling
267 .Pa /usr/src/sys/boot
268 will cause it to retrieve the kernel via TFTP.
269 This allows pxeboot to load a custom BOOTP diskless kernel yet
270 still mount the server's
272 rather than load the server's kernel.
273 .It Va NO_CPU_COPTFLAGS
275 Setting this variable will prevent CPU specific compiler flags
276 from being automatically added to
279 .It Va NO_KERNELCLEAN
281 Set this to skip the clean target when using
282 .Dq Li "${MAKE} buildkernel" .
283 .It Va NO_KERNELCONFIG
285 Set this to skip running
288 .Dq Li "${MAKE} buildkernel" .
289 .It Va NO_KERNELDEPEND
291 Set this to skip running
292 .Dq Li "${MAKE} depend"
294 .Dq Li "${MAKE} buildkernel" .
295 .It Va NO_KERNEL_OLD_STRIP
297 Set this to skip stripping debugging symbols from old kernel and modules
298 (kernel.old, modules.old) during
299 .Dq Li "${MAKE} installkernel" .
302 Set to not build modules with the kernel.
305 The following list provides a name and short description for variables
306 that are used during the world build:
308 .It Va ENABLE_SUID_K5SU
310 Set this if you wish to use the k5su utility.
311 Otherwise, it will be installed without the set-user-ID bit set.
312 This is only relevant if
315 .It Va ENABLE_SUID_SSH
319 with the setuid bit turned on.
320 .It Va MODULES_WITH_WORLD
322 Set to build modules with the system instead of the kernel.
325 Set to not build BIND.
328 Set to not build crypto code.
331 Set to not build CVS.
334 Set to not build games.
337 Set to not build the older version of GCC (3.4).
340 Set to not build the newer version of GCC (4.4).
347 Set to not build isdn4bsd package.
350 Set to not build IP Filter package.
355 (reentrant version of
361 and related programs.
362 .It Va NO_MAILWRAPPER
369 Set to not build Objective C support.
372 Set to not build OpenSSH.
375 Set to not build OpenSSL (implies
381 and related programs.
384 Set to not enter the share subdirectory.
387 Set to not compile in X\-Windows support (e.g.\&
391 Set this to disable cleaning during
392 .Dq Li "make buildworld" .
393 This should not be set unless you know what you are doing.
397 .Dq Li "${MAKE} clean"
399 .Dq Li "${MAKE} cleandir" .
402 Set to not install certain components with flag schg.
403 This is useful in a jailed environment.
406 Set to not make or install
409 .It Va NOINFOCOMPRESS
411 Set to not compress the info pages.
414 Set to not build manual pages
417 Set to not compress the manual pages.
420 Set to avoid compiling profiled libraries.
423 Set to disable the installation of
425 with the set-user-ID bit on.
430 configuration file to use at install time.
431 The value should include the full path to the
434 .Pa /etc/mail/myconfig.mc .
435 Use with caution as a make install will overwrite any existing
436 .Pa /etc/mail/sendmail.cf .
440 .It Va SENDMAIL_SUBMIT_MC
444 configuration file for mail submission
445 to use at install time.
446 The value should include the full path to the
449 .Pa /etc/mail/mysubmit.mc .
450 Use with caution as a make install will overwrite any existing
451 .Pa /etc/mail/submit.cf .
452 .It Va SENDMAIL_ADDITIONAL_MC
456 files which should be built into
459 The value should include the full path to the
463 .Pa /etc/mail/bar.mc .
464 .It Va SENDMAIL_CF_DIR
466 Override the default location for the
468 configuration files used to build a
473 .It Va SENDMAIL_M4_FLAGS
482 .It Va SENDMAIL_CFLAGS
484 Flags to pass to the compile command when building
488 flags can be used to provide SASL support with setting such as:
489 .Bd -literal -offset indent
490 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
491 SENDMAIL_LDFLAGS=-L/usr/local/lib
492 SENDMAIL_LDADD=-lsasl
494 .It Va SENDMAIL_LDFLAGS
498 command when building
500 .It Va SENDMAIL_LDADD
502 Flags to add to the end of the
504 command when building
506 .It Va SENDMAIL_DPADD
508 Extra dependencies to add when building
510 .It Va SENDMAIL_SET_USER_ID
514 as a set-user-ID root binary instead of a set-group-ID binary
516 .Pa /etc/mail/submit.{cf,mc} .
517 Use of this flag is not recommended and the alternative advice in
519 should be followed instead if at all possible.
520 .It Va SENDMAIL_MAP_PERMS
522 Mode to use when generating alias and map database files using
523 .Pa /etc/mail/Makefile .
524 The default value is 0640.
531 to configure the system's default threading library.
534 .It Va TOP_TABLE_SIZE
537 uses a hash table for the user names. The size of this hash can be tuned
538 to match the number of local users. The table size should be a prime number
539 approximately twice as large as the number of lines in
541 The default number is 20011.
544 Set to build the IDEA encryption code.
545 This code is patented in the USA and many European countries.
547 .Em "YOUR RESPONSIBILITY"
548 to determine if you can legally use IDEA.
549 .It Va WANT_INSTALLER
551 Set to build the installer.
554 Set this to build Kerberos5 (KTH Heimdal).
556 This is still experimental code.
559 The following list provides a name and short description for variables
560 that are used when building documentation.
564 The list of languages and encodings to build and install.
567 The default format for system documentation, depends on your
571 for simple printers or
573 for postscript or graphics printers with a ghostscript
575 .It Va GROFF_PAPER_SIZE
577 The default paper size for
585 .Bl -tag -width /etc/defaults/make.conf -compact
586 .It Pa /etc/defaults/make.conf
587 .It Pa /etc/make.conf
588 .It Pa /usr/src/Makefile
589 .It Pa /usr/src/Makefile.inc1
600 file appeared sometime before
603 This manual page was written by
604 .An Mike W. Meyer Aq mwm@mired.org .
606 This manual page may occasionally be out of date with respect to
607 the options currently available for use in
610 .Pa /etc/defaults/make.conf
611 file for the latest options which are available.