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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 "${MAKE} installkernel" .
299 Set to not build modules with the kernel.
302 The following list provides a name and short description for variables
303 that are used during the world build:
305 .It Va ENABLE_SUID_K5SU
307 Set this if you wish to use the k5su utility.
308 Otherwise, it will be installed without the set-user-ID bit set.
309 This is only relevant if
312 .It Va ENABLE_SUID_SSH
316 with the setuid bit turned on.
317 .It Va MODULES_WITH_WORLD
319 Set to build modules with the system instead of the kernel.
322 Set to not build BIND.
325 Set to not build crypto code.
328 Set to not build CVS.
331 Set to not build games.
334 Set to not build the newer version of GCC (4.4).
341 Set to not build isdn4bsd package.
344 Set to not build IP Filter package.
349 (reentrant version of
355 and related programs.
356 .It Va NO_MAILWRAPPER
363 Set to not build Objective C support.
366 Set to not build OpenSSH.
369 Set to not build OpenSSL (implies
375 and related programs.
378 Set to not enter the share subdirectory.
381 Set to not compile in X\-Windows support (e.g.\&
385 Set this to disable cleaning during
386 .Dq Li "make buildworld" .
387 This should not be set unless you know what you are doing.
391 .Dq Li "${MAKE} clean"
393 .Dq Li "${MAKE} cleandir" .
396 Set to not install certain components with flag schg.
397 This is useful in a jailed environment.
400 Set to not make or install
403 .It Va NOINFOCOMPRESS
405 Set to not compress the info pages.
408 Set to not build manual pages
411 Set to not compress the manual pages.
414 Set to avoid compiling profiled libraries.
417 Set to disable the installation of
419 with the set-user-ID bit on.
424 configuration file to use at install time.
425 The value should include the full path to the
428 .Pa /etc/mail/myconfig.mc .
429 Use with caution as a make install will overwrite any existing
430 .Pa /etc/mail/sendmail.cf .
434 .It Va SENDMAIL_SUBMIT_MC
438 configuration file for mail submission
439 to use at install time.
440 The value should include the full path to the
443 .Pa /etc/mail/mysubmit.mc .
444 Use with caution as a make install will overwrite any existing
445 .Pa /etc/mail/submit.cf .
446 .It Va SENDMAIL_ADDITIONAL_MC
450 files which should be built into
453 The value should include the full path to the
457 .Pa /etc/mail/bar.mc .
458 .It Va SENDMAIL_CF_DIR
460 Override the default location for the
462 configuration files used to build a
467 .It Va SENDMAIL_M4_FLAGS
476 .It Va SENDMAIL_CFLAGS
478 Flags to pass to the compile command when building
482 flags can be used to provide SASL support with setting such as:
483 .Bd -literal -offset indent
484 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
485 SENDMAIL_LDFLAGS=-L/usr/local/lib
486 SENDMAIL_LDADD=-lsasl
488 .It Va SENDMAIL_LDFLAGS
492 command when building
494 .It Va SENDMAIL_LDADD
496 Flags to add to the end of the
498 command when building
500 .It Va SENDMAIL_DPADD
502 Extra dependencies to add when building
504 .It Va SENDMAIL_SET_USER_ID
508 as a set-user-ID root binary instead of a set-group-ID binary
510 .Pa /etc/mail/submit.{cf,mc} .
511 Use of this flag is not recommended and the alternative advice in
513 should be followed instead if at all possible.
514 .It Va SENDMAIL_MAP_PERMS
516 Mode to use when generating alias and map database files using
517 .Pa /etc/mail/Makefile .
518 The default value is 0640.
525 to configure the system's default threading library.
528 .It Va TOP_TABLE_SIZE
531 uses a hash table for the user names. The size of this hash can be tuned
532 to match the number of local users. The table size should be a prime number
533 approximately twice as large as the number of lines in
535 The default number is 20011.
538 Set to build the IDEA encryption code.
539 This code is patented in the USA and many European countries.
541 .Em "YOUR RESPONSIBILITY"
542 to determine if you can legally use IDEA.
543 .It Va WANT_INSTALLER
545 Set to build the installer.
548 Set this to build Kerberos5 (KTH Heimdal).
550 This is still experimental code.
553 The following list provides a name and short description for variables
554 that are used when building documentation.
558 The list of languages and encodings to build and install.
561 The default format for system documentation, depends on your
565 for simple printers or
567 for postscript or graphics printers with a ghostscript
569 .It Va GROFF_PAPER_SIZE
571 The default paper size for
579 .Bl -tag -width /etc/defaults/make.conf -compact
580 .It Pa /etc/defaults/make.conf
581 .It Pa /etc/make.conf
582 .It Pa /usr/src/Makefile
583 .It Pa /usr/src/Makefile.inc1
594 file appeared sometime before
597 This manual page was written by
598 .An Mike W. Meyer Aq mwm@mired.org .
600 This manual page may occasionally be out of date with respect to
601 the options currently available for use in
604 .Pa /etc/defaults/make.conf
605 file for the latest options which are available.