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32 .Nd system build information
36 contains settings that control the compilation of the
41 is generally created by the system administrator when the values need
42 to be changed from their defaults.
46 is not to run commands or perform compilation actions
48 Instead, it is included by the various makefiles in
50 which conditionalize their internal actions according to the settings
55 file is included from the appropriate
57 which specifies the default settings for all the available options.
58 Options need only be specified in
60 when the system administrator wishes to override these defaults.
62 The build procedures occur in three areas: world, kernel, and
66 may be applicable during builds in one, two, or all of these areas.
67 They may be specified for a particular build via the
72 The following lists provide a name and short description for each
73 variable you can use during the indicated builds.
74 The values of variables flagged as
76 are ignored; the variable being set at all (even to
80 causes it to be treated as if it were set.
82 The following list provides a name and short description for variables
83 that are used for all builds, or are used by the
85 for things other than builds.
89 Controls which processor should be targeted for generated code.
90 This controls processor-specific optimizations in certain code
91 (currently only OpenSSL) as well as modifying the value of
95 to contain the appropriate optimization directive to
97 The automatic setting of
101 may be overridden using the
105 variables, respectively. Refer to
106 .Pa /usr/share/examples/etc/defaults/make.conf
107 for a list of recognized
112 Controls which GCC version to use by default.
115 so as not to interfere with overrides from userland.
116 We currently recommend that an override NOT be set in
118 Currently accepted values for compilers which are part of
125 All other values will handled according to the settings in
126 .Xr compilers.conf 5 .
129 Controls which binutils to use by default.
130 Currently accepted values are
136 Controls the compiler setting when compiling C code.
137 Optimization levels above
142 is provided as a set of
144 settings suggested by
145 .An "Bruce Evans" Aq bde@FreeBSD.org
146 for developing and testing changes.
147 They can be used, if set, by:
148 .Bd -literal -offset indent
157 to be set to a blank value, if set.
162 for compiling with debug symbols.
165 Setting this variable will prevent CPU specific compiler flags
166 from being automatically added to
171 Controls the compiler settings when compiling C++ code.
173 is initially set to the value of
175 If you want to add to the
183 the default install command.
184 To have components compared before doing the install, use
185 .Bd -literal -offset indent
190 List any directories that should be entered when running make
195 Controls the shell used internally by
197 to process the command scripts in makefiles.
202 all currently supported.
203 .Bd -literal -offset indent
206 .It Va MODULES_OVERRIDE
208 Set to a list of modules to build instead of all of them.
209 .It Va MTREE_FOLLOWS_SYMLINKS
218 Set this to the flag to pass to the
221 If set to a blank value, debug symbols will not be removed.
223 is automatically set to a blank value if
233 Set this to disable name caching in the nsswitch subsystem.
234 The generic caching daemon,
236 will not be built either if this option is set.
238 Set this if you don't want
242 or used in the kernel build.
243 .It Va STATIC_LOCALES
245 Set to a list of locales to build into statically-linked binaries.
246 Currently supported locales are: BIG5 EUC EUCTW ISO2022 MSKanji UTF8
249 The following list provides a name and short description for variables
250 that are only used doing a kernel build:
252 .It Va BOOT_COMCONSOLE_PORT
254 The port address to use for the console if the boot blocks have
255 been configured to use a serial console instead of the keyboard/video card.
256 .It Va BOOT_COMCONSOLE_SPEED
258 The baud rate to use for the console if the boot blocks have
259 been configured to use a serial console instead of the keyboard/video card.
262 Controls the compiler settings when building the
264 Optimization levels above
267 are not guaranteed to work.
270 Controls which kernel configurations will be
272 .Dq Li "${MAKE} buildkernel"
274 .Dq Li "${MAKE} installkernel" .
276 .Bd -literal -offset indent
277 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
280 will build the kernels specified by the config files
281 .Pa MINE , DEBUG , GENERIC ,
284 and install the kernel specified by the config file
288 .It Va LOADER_TFTP_SUPPORT
290 While not a buildkernel-affected option, there is no better place for this.
293 loader retrieves the kernel via NFS.
294 Defining this and recompiling
295 .Pa /usr/src/sys/boot
296 will cause it to retrieve the kernel via TFTP.
297 This allows pxeboot to load a custom BOOTP diskless kernel yet
298 still mount the server's
300 rather than load the server's kernel.
301 .It Va NO_CPU_COPTFLAGS
303 Setting this variable will prevent CPU specific compiler flags
304 from being automatically added to
307 .It Va NO_KERNELCLEAN
309 Set this to skip the clean target when using
310 .Dq Li "${MAKE} buildkernel" .
311 .It Va NO_KERNELCONFIG
313 Set this to skip running
316 .Dq Li "${MAKE} buildkernel" .
317 .It Va NO_KERNELDEPEND
319 Set this to skip running
320 .Dq Li "${MAKE} depend"
322 .Dq Li "${MAKE} buildkernel" .
323 .It Va NO_KERNEL_OLD_STRIP
325 Set this to skip stripping debugging symbols from old kernel and modules
326 (kernel.old, modules.old) during
327 .Dq Li "${MAKE} installkernel" .
330 Set to not build modules with the kernel.
333 The following list provides a name and short description for variables
334 that are used during the world build:
336 .It Va ENABLE_SUID_SSH
340 with the setuid bit turned on.
341 .It Va MODULES_WITH_WORLD
343 Set to build modules with the system instead of the kernel.
346 Set to not build crypto code.
349 Set to not build CVS.
352 Set to not build games.
355 Set to not build the older version of GCC (4.1).
362 Set to not build isdn4bsd package.
365 Set to not build IP Filter package.
370 (reentrant version of
376 and related programs.
377 .It Va NO_MAILWRAPPER
384 Set to not build Objective C support.
387 Set to not build OpenSSH.
390 Set to not build OpenSSL (implies
396 and related programs.
399 Set to not enter the share subdirectory.
402 Set to not compile in X\-Windows support (e.g.\&
406 Set this to disable cleaning during
407 .Dq Li "make buildworld" .
408 This should not be set unless you know what you are doing.
412 .Dq Li "${MAKE} clean"
414 .Dq Li "${MAKE} cleandir" .
417 Set to not install certain components with flag schg.
418 This is useful in a jailed environment.
421 Set to not make or install
424 .It Va NOINFOCOMPRESS
426 Set to not compress the info pages.
429 Set to not build manual pages
432 Set to not compress the manual pages.
435 Set to avoid compiling profiled libraries.
438 Set to disable the installation of
440 with the set-user-ID bit on.
445 configuration file to use at install time.
446 The value should include the full path to the
449 .Pa /etc/mail/myconfig.mc .
450 Use with caution as a make install will overwrite any existing
451 .Pa /etc/mail/sendmail.cf .
455 .It Va SENDMAIL_SUBMIT_MC
459 configuration file for mail submission
460 to use at install time.
461 The value should include the full path to the
464 .Pa /etc/mail/mysubmit.mc .
465 Use with caution as a make install will overwrite any existing
466 .Pa /etc/mail/submit.cf .
467 .It Va SENDMAIL_ADDITIONAL_MC
471 files which should be built into
474 The value should include the full path to the
478 .Pa /etc/mail/bar.mc .
479 .It Va SENDMAIL_CF_DIR
481 Override the default location for the
483 configuration files used to build a
488 .It Va SENDMAIL_M4_FLAGS
497 .It Va SENDMAIL_CFLAGS
499 Flags to pass to the compile command when building
503 flags can be used to provide SASL support with setting such as:
504 .Bd -literal -offset indent
505 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
506 SENDMAIL_LDFLAGS=-L/usr/local/lib
507 SENDMAIL_LDADD=-lsasl
509 .It Va SENDMAIL_LDFLAGS
513 command when building
515 .It Va SENDMAIL_LDADD
517 Flags to add to the end of the
519 command when building
521 .It Va SENDMAIL_DPADD
523 Extra dependencies to add when building
525 .It Va SENDMAIL_SET_USER_ID
529 as a set-user-ID root binary instead of a set-group-ID binary
531 .Pa /etc/mail/submit.{cf,mc} .
532 Use of this flag is not recommended and the alternative advice in
534 should be followed instead if at all possible.
535 .It Va SENDMAIL_MAP_PERMS
537 Mode to use when generating alias and map database files using
538 .Pa /etc/mail/Makefile .
539 The default value is 0640.
546 to configure the system's default threading library.
551 Set to build the IDEA encryption code.
552 This code is patented in the USA and many European countries.
554 .Em "YOUR RESPONSIBILITY"
555 to determine if you can legally use IDEA.
556 .It Va WANT_INSTALLER
558 Set to build the installer.
561 The following list provides a name and short description for variables
562 that are used when building documentation.
566 The list of languages and encodings to build and install.
569 The default format for system documentation, depends on your
573 for simple printers or
575 for postscript or graphics printers with a ghostscript
577 .It Va GROFF_PAPER_SIZE
579 The default paper size for
587 .Bl -tag -width /etc/defaults/make.conf -compact
588 .It Pa /etc/defaults/make.conf
589 .It Pa /etc/make.conf
590 .It Pa /usr/src/Makefile
591 .It Pa /usr/src/Makefile.inc1
602 file appeared sometime before
605 This manual page was written by
606 .An Mike W. Meyer Aq mwm@mired.org .