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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.
218 The following list provides a name and short description for variables
219 that are only used doing a kernel build:
221 .It Va BOOT_COMCONSOLE_PORT
223 The port address to use for the console if the boot blocks have
224 been configured to use a serial console instead of the keyboard/video card.
225 .It Va BOOT_COMCONSOLE_SPEED
227 The baud rate to use for the console if the boot blocks have
228 been configured to use a serial console instead of the keyboard/video card.
231 Controls the compiler settings when building the
233 Optimization levels above
236 are not guaranteed to work.
239 Controls which kernel configurations will be
241 .Dq Li "${MAKE} buildkernel"
243 .Dq Li "${MAKE} installkernel" .
245 .Bd -literal -offset indent
246 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
249 will build the kernels specified by the config files
250 .Pa MINE , DEBUG , GENERIC ,
253 and install the kernel specified by the config file
257 .It Va LOADER_TFTP_SUPPORT
259 While not a buildkernel-affected option, there is no better place for this.
262 loader retrieves the kernel via NFS.
263 Defining this and recompiling
264 .Pa /usr/src/sys/boot
265 will cause it to retrieve the kernel via TFTP.
266 This allows pxeboot to load a custom BOOTP diskless kernel yet
267 still mount the server's
269 rather than load the server's kernel.
270 .It Va NO_CPU_COPTFLAGS
272 Setting this variable will prevent CPU specific compiler flags
273 from being automatically added to
276 .It Va NO_KERNELCLEAN
278 Set this to skip the clean target when using
279 .Dq Li "${MAKE} buildkernel" .
280 .It Va NO_KERNELCONFIG
282 Set this to skip running
285 .Dq Li "${MAKE} buildkernel" .
286 .It Va NO_KERNELDEPEND
288 Set this to skip running
289 .Dq Li "${MAKE} depend"
291 .Dq Li "${MAKE} buildkernel" .
292 .It Va NO_KERNEL_OLD_STRIP
294 Set this to skip stripping debugging symbols from old kernel and modules
295 (kernel.old, modules.old) during
296 .Dq Li "${MAKE} installkernel" .
299 Set to not build modules with the kernel.
302 The following list provides a name and short description for variables
303 that are used during the world build:
305 .It Va ENABLE_SUID_SSH
309 with the setuid bit turned on.
310 .It Va MODULES_WITH_WORLD
312 Set to build modules with the system instead of the kernel.
315 Set to not build BIND.
318 Set to not build crypto code.
321 Set to not build CVS.
324 Set to not build games.
327 Set to not build the newer version of GCC (4.4).
334 Set to not build isdn4bsd package.
337 Set to not build IP Filter package.
342 (reentrant version of
348 and related programs.
349 .It Va NO_MAILWRAPPER
356 Set to not build Objective C support.
359 Set to not build OpenSSH.
362 Set to not build OpenSSL (implies
368 and related programs.
371 Set to not enter the share subdirectory.
374 Set to not compile in X\-Windows support (e.g.\&
378 Set this to disable cleaning during
379 .Dq Li "make buildworld" .
380 This should not be set unless you know what you are doing.
384 .Dq Li "${MAKE} clean"
386 .Dq Li "${MAKE} cleandir" .
389 Set to not install certain components with flag schg.
390 This is useful in a jailed environment.
393 Set to not make or install
396 .It Va NOINFOCOMPRESS
398 Set to not compress the info pages.
401 Set to not build manual pages
404 Set to not compress the manual pages.
407 Set to avoid compiling profiled libraries.
410 Set to disable the installation of
412 with the set-user-ID bit on.
417 configuration file to use at install time.
418 The value should include the full path to the
421 .Pa /etc/mail/myconfig.mc .
422 Use with caution as a make install will overwrite any existing
423 .Pa /etc/mail/sendmail.cf .
427 .It Va SENDMAIL_SUBMIT_MC
431 configuration file for mail submission
432 to use at install time.
433 The value should include the full path to the
436 .Pa /etc/mail/mysubmit.mc .
437 Use with caution as a make install will overwrite any existing
438 .Pa /etc/mail/submit.cf .
439 .It Va SENDMAIL_ADDITIONAL_MC
443 files which should be built into
446 The value should include the full path to the
450 .Pa /etc/mail/bar.mc .
451 .It Va SENDMAIL_CF_DIR
453 Override the default location for the
455 configuration files used to build a
460 .It Va SENDMAIL_M4_FLAGS
469 .It Va SENDMAIL_CFLAGS
471 Flags to pass to the compile command when building
475 flags can be used to provide SASL support with setting such as:
476 .Bd -literal -offset indent
477 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
478 SENDMAIL_LDFLAGS=-L/usr/local/lib
479 SENDMAIL_LDADD=-lsasl
481 .It Va SENDMAIL_LDFLAGS
485 command when building
487 .It Va SENDMAIL_LDADD
489 Flags to add to the end of the
491 command when building
493 .It Va SENDMAIL_DPADD
495 Extra dependencies to add when building
497 .It Va SENDMAIL_SET_USER_ID
501 as a set-user-ID root binary instead of a set-group-ID binary
503 .Pa /etc/mail/submit.{cf,mc} .
504 Use of this flag is not recommended and the alternative advice in
506 should be followed instead if at all possible.
507 .It Va SENDMAIL_MAP_PERMS
509 Mode to use when generating alias and map database files using
510 .Pa /etc/mail/Makefile .
511 The default value is 0640.
518 to configure the system's default threading library.
521 .It Va TOP_TABLE_SIZE
524 uses a hash table for the user names. The size of this hash can be tuned
525 to match the number of local users. The table size should be a prime number
526 approximately twice as large as the number of lines in
528 The default number is 20011.
531 Set to build the IDEA encryption code.
532 This code is patented in the USA and many European countries.
534 .Em "YOUR RESPONSIBILITY"
535 to determine if you can legally use IDEA.
536 .It Va WANT_INSTALLER
538 Set to build the installer.
541 The following list provides a name and short description for variables
542 that are used when building documentation.
546 The list of languages and encodings to build and install.
549 The default format for system documentation, depends on your
553 for simple printers or
555 for postscript or graphics printers with a ghostscript
557 .It Va GROFF_PAPER_SIZE
559 The default paper size for
567 .Bl -tag -width /etc/defaults/make.conf -compact
568 .It Pa /etc/defaults/make.conf
569 .It Pa /etc/make.conf
570 .It Pa /usr/src/Makefile
571 .It Pa /usr/src/Makefile.inc1
582 file appeared sometime before
585 This manual page was written by
586 .An Mike W. Meyer Aq mwm@mired.org .
588 This manual page may occasionally be out of date with respect to
589 the options currently available for use in
592 .Pa /etc/defaults/make.conf
593 file for the latest options which are available.