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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
124 Controls the compiler setting when compiling C code.
125 Optimization levels above
130 is provided as a set of
132 settings suggested by
133 .An "Bruce Evans" Aq bde@FreeBSD.org
134 for developing and testing changes.
135 They can be used, if set, by:
136 .Bd -literal -offset indent
141 Setting this variable will prevent CPU specific compiler flags
142 from being automatically added to
147 Controls the compiler settings when compiling C++ code.
149 is initially set to the value of
151 If you want to add to the
159 the default install command.
160 To have components compared before doing the install, use
161 .Bd -literal -offset indent
166 List any directories that should be entered when running make
171 Controls the shell used internally by
173 to process the command scripts in makefiles.
178 all currently supported.
179 .Bd -literal -offset indent
182 .It Va MODULES_OVERRIDE
184 Set to a list of modules to build instead of all of them.
185 .It Va MTREE_FOLLOWS_SYMLINKS
194 Set this to the flag to pass the
197 If set to a blank value, components will be installed with debugging
204 when WARNS is in effect.
212 Set this to disable name caching in the nsswitch subsystem.
213 The generic caching daemon,
215 will not be built either if this option is set.
216 .It Va STATIC_LOCALES
218 Set to a list of locales to build into statically-linked binaries.
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 "${MAKE} installkernel" .
302 Set to not build modules with the kernel.
305 The following list provides a name and short description for variables
306 that are used during the world build:
308 .It Va ENABLE_SUID_SSH
312 with the setuid bit turned on.
313 .It Va MODULES_WITH_WORLD
315 Set to build modules with the system instead of the kernel.
318 Set to not build BIND.
321 Set to not build crypto code.
324 Set to not build CVS.
327 Set to not build games.
330 Set to not build the newer version of GCC (4.4).
337 Set to not build isdn4bsd package.
340 Set to not build IP Filter package.
345 (reentrant version of
351 and related programs.
352 .It Va NO_MAILWRAPPER
359 Set to not build Objective C support.
362 Set to not build OpenSSH.
365 Set to not build OpenSSL (implies
371 and related programs.
374 Set to not enter the share subdirectory.
377 Set to not compile in X\-Windows support (e.g.\&
381 Set this to disable cleaning during
382 .Dq Li "make buildworld" .
383 This should not be set unless you know what you are doing.
387 .Dq Li "${MAKE} clean"
389 .Dq Li "${MAKE} cleandir" .
392 Set to not install certain components with flag schg.
393 This is useful in a jailed environment.
396 Set to not make or install
399 .It Va NOINFOCOMPRESS
401 Set to not compress the info pages.
404 Set to not build manual pages
407 Set to not compress the manual pages.
410 Set to avoid compiling profiled libraries.
413 Set to disable the installation of
415 with the set-user-ID bit on.
420 configuration file to use at install time.
421 The value should include the full path to the
424 .Pa /etc/mail/myconfig.mc .
425 Use with caution as a make install will overwrite any existing
426 .Pa /etc/mail/sendmail.cf .
430 .It Va SENDMAIL_SUBMIT_MC
434 configuration file for mail submission
435 to use at install time.
436 The value should include the full path to the
439 .Pa /etc/mail/mysubmit.mc .
440 Use with caution as a make install will overwrite any existing
441 .Pa /etc/mail/submit.cf .
442 .It Va SENDMAIL_ADDITIONAL_MC
446 files which should be built into
449 The value should include the full path to the
453 .Pa /etc/mail/bar.mc .
454 .It Va SENDMAIL_CF_DIR
456 Override the default location for the
458 configuration files used to build a
463 .It Va SENDMAIL_M4_FLAGS
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_LDFLAGS
488 command when building
490 .It Va SENDMAIL_LDADD
492 Flags to add to the end of the
494 command when building
496 .It Va SENDMAIL_DPADD
498 Extra dependencies to add when building
500 .It Va SENDMAIL_SET_USER_ID
504 as a set-user-ID root binary instead of a set-group-ID binary
506 .Pa /etc/mail/submit.{cf,mc} .
507 Use of this flag is not recommended and the alternative advice in
509 should be followed instead if at all possible.
510 .It Va SENDMAIL_MAP_PERMS
512 Mode to use when generating alias and map database files using
513 .Pa /etc/mail/Makefile .
514 The default value is 0640.
521 to configure the system's default threading library.
524 .It Va TOP_TABLE_SIZE
527 uses a hash table for the user names. The size of this hash can be tuned
528 to match the number of local users. The table size should be a prime number
529 approximately twice as large as the number of lines in
531 The default number is 20011.
534 Set to build the IDEA encryption code.
535 This code is patented in the USA and many European countries.
537 .Em "YOUR RESPONSIBILITY"
538 to determine if you can legally use IDEA.
539 .It Va WANT_INSTALLER
541 Set to build the installer.
544 The following list provides a name and short description for variables
545 that are used when building documentation.
549 The list of languages and encodings to build and install.
552 The default format for system documentation, depends on your
556 for simple printers or
558 for postscript or graphics printers with a ghostscript
560 .It Va GROFF_PAPER_SIZE
562 The default paper size for
570 .Bl -tag -width /etc/defaults/make.conf -compact
571 .It Pa /etc/defaults/make.conf
572 .It Pa /etc/make.conf
573 .It Pa /usr/src/Makefile
574 .It Pa /usr/src/Makefile.inc1
585 file appeared sometime before
588 This manual page was written by
589 .An Mike W. Meyer Aq mwm@mired.org .
591 This manual page may occasionally be out of date with respect to
592 the options currently available for use in
595 .Pa /etc/defaults/make.conf
596 file for the latest options which are available.