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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.
214 The default is to use
223 Set this to disable name caching in the nsswitch subsystem.
224 The generic caching daemon,
226 will not be built either if this option is set.
229 The following list provides a name and short description for variables
230 that are only used doing a kernel build:
232 .It Va BOOT_COMCONSOLE_PORT
234 The port address to use for the console if the boot blocks have
235 been configured to use a serial console instead of the keyboard/video card.
236 .It Va BOOT_COMCONSOLE_SPEED
238 The baud rate to use for the console if the boot blocks have
239 been configured to use a serial console instead of the keyboard/video card.
242 Controls the compiler settings when building the
244 Optimization levels above
247 are not guaranteed to work.
250 Controls which kernel configurations will be
252 .Dq Li "${MAKE} buildkernel"
254 .Dq Li "${MAKE} installkernel" .
256 .Bd -literal -offset indent
257 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
260 will build the kernels specified by the config files
261 .Pa MINE , DEBUG , GENERIC ,
264 and install the kernel specified by the config file
268 .It Va LOADER_TFTP_SUPPORT
270 While not a buildkernel-affected option, there is no better place for this.
273 loader retrieves the kernel via NFS.
274 Defining this and recompiling
275 .Pa /usr/src/sys/boot
276 will cause it to retrieve the kernel via TFTP.
277 This allows pxeboot to load a custom BOOTP diskless kernel yet
278 still mount the server's
280 rather than load the server's kernel.
281 .It Va NO_CPU_COPTFLAGS
283 Setting this variable will prevent CPU specific compiler flags
284 from being automatically added to
287 .It Va NO_KERNELCLEAN
289 Set this to skip the clean target when using
290 .Dq Li "${MAKE} buildkernel" .
291 .It Va NO_KERNELCONFIG
293 Set this to skip running
296 .Dq Li "${MAKE} buildkernel" .
297 .It Va NO_KERNELDEPEND
299 Set this to skip running
300 .Dq Li "${MAKE} depend"
302 .Dq Li "${MAKE} buildkernel" .
303 .It Va NO_KERNEL_OLD_STRIP
305 Set this to skip stripping debugging symbols from old kernel and modules
306 (kernel.old, modules.old) during
307 .Dq Li "${MAKE} installkernel" .
310 Set to not build modules with the kernel.
313 The following list provides a name and short description for variables
314 that are used during the world build:
316 .It Va ENABLE_SUID_K5SU
318 Set this if you wish to use the k5su utility.
319 Otherwise, it will be installed without the set-user-ID bit set.
320 This is only relevant if
323 .It Va ENABLE_SUID_SSH
327 with the setuid bit turned on.
328 .It Va MODULES_WITH_WORLD
330 Set to build modules with the system instead of the kernel.
333 Set to not build BIND.
336 Set to not build crypto code.
339 Set to not build CVS.
342 Set to not build games.
345 Set to not build the older version of GCC (3.4).
352 Set to not build isdn4bsd package.
355 Set to not build IP Filter package.
360 (reentrant version of
366 and related programs.
367 .It Va NO_MAILWRAPPER
381 Set to not build Objective C support.
384 Set to not build OpenSSH.
387 Set to not build OpenSSL (implies
393 and related programs.
396 Set to not enter the share subdirectory.
399 Set to not compile in X\-Windows support (e.g.\&
403 Set this to disable cleaning during
404 .Dq Li "make buildworld" .
405 This should not be set unless you know what you are doing.
409 .Dq Li "${MAKE} clean"
411 .Dq Li "${MAKE} cleandir" .
414 Set to not install certain components with flag schg.
415 This is useful in a jailed environment.
418 Set to not make or install
421 .It Va NOINFOCOMPRESS
423 Set to not compress the info pages.
426 Set to not build manual pages
429 Set to not compress the manual pages.
432 Set to avoid compiling profiled libraries.
435 Set to disable the installation of
437 with the set-user-ID bit on.
442 configuration file to use at install time.
443 The value should include the full path to the
446 .Pa /etc/mail/myconfig.mc .
447 Use with caution as a make install will overwrite any existing
448 .Pa /etc/mail/sendmail.cf .
452 .It Va SENDMAIL_SUBMIT_MC
456 configuration file for mail submission
457 to use at install time.
458 The value should include the full path to the
461 .Pa /etc/mail/mysubmit.mc .
462 Use with caution as a make install will overwrite any existing
463 .Pa /etc/mail/submit.cf .
464 .It Va SENDMAIL_ADDITIONAL_MC
468 files which should be built into
471 The value should include the full path to the
475 .Pa /etc/mail/bar.mc .
476 .It Va SENDMAIL_CF_DIR
478 Override the default location for the
480 configuration files used to build a
485 .It Va SENDMAIL_M4_FLAGS
494 .It Va SENDMAIL_CFLAGS
496 Flags to pass to the compile command when building
500 flags can be used to provide SASL support with setting such as:
501 .Bd -literal -offset indent
502 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
503 SENDMAIL_LDFLAGS=-L/usr/local/lib
504 SENDMAIL_LDADD=-lsasl
506 .It Va SENDMAIL_LDFLAGS
510 command when building
512 .It Va SENDMAIL_LDADD
514 Flags to add to the end of the
516 command when building
518 .It Va SENDMAIL_DPADD
520 Extra dependencies to add when building
522 .It Va SENDMAIL_SET_USER_ID
526 as a set-user-ID root binary instead of a set-group-ID binary
528 .Pa /etc/mail/submit.{cf,mc} .
529 Use of this flag is not recommended and the alternative advice in
531 should be followed instead if at all possible.
532 .It Va SENDMAIL_MAP_PERMS
534 Mode to use when generating alias and map database files using
535 .Pa /etc/mail/Makefile .
536 The default value is 0640.
543 to configure the system's default threading library.
546 .It Va TOP_TABLE_SIZE
549 uses a hash table for the user names. The size of this hash can be tuned
550 to match the number of local users. The table size should be a prime number
551 approximately twice as large as the number of lines in
553 The default number is 20011.
556 Set to build the IDEA encryption code.
557 This code is patented in the USA and many European countries.
559 .Em "YOUR RESPONSIBILITY"
560 to determine if you can legally use IDEA.
561 .It Va WANT_INSTALLER
563 Set to build the installer.
566 Set this to build Kerberos5 (KTH Heimdal).
568 This is still experimental code.
571 The following list provides a name and short description for variables
572 that are used when building documentation.
576 The list of languages and encodings to build and install.
579 The default format for system documentation, depends on your
583 for simple printers or
585 for postscript or graphics printers with a ghostscript
587 .It Va GROFF_PAPER_SIZE
589 The default paper size for
597 .Bl -tag -width /etc/defaults/make.conf -compact
598 .It Pa /etc/defaults/make.conf
599 .It Pa /etc/make.conf
600 .It Pa /usr/src/Makefile
601 .It Pa /usr/src/Makefile.inc1
612 file appeared sometime before
615 This manual page was written by
616 .An Mike W. Meyer Aq mwm@mired.org .
618 This manual page may occasionally be out of date with respect to
619 the options currently available for use in
622 .Pa /etc/defaults/make.conf
623 file for the latest options which are available.