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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. It should be set as
114 CCVER?= so as not to interfere with overrides from userland. We
115 currently recommend that an override NOT be set in
117 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:
137 .Bd -literal -offset indent
142 Setting this variable will prevent CPU specific compiler flags
143 from being automatically added to
148 Controls the compiler settings when compiling C++ code.
150 is initially set to the value of
152 If you want to add to the
160 the default install command.
161 To have components compared before doing the install, use
162 .Bd -literal -offset indent
167 List any directories that should be entered when running make
172 Controls the shell used internally by
174 to process the command scripts in makefiles.
179 all currently supported.
180 .Bd -literal -offset indent
183 .It Va MODULES_OVERRIDE
185 Set to a list of modules to build instead of all of them.
186 .It Va MTREE_FOLLOWS_SYMLINKS
195 Set this to not update the doc tree during
196 .Dq Li "make update" .
199 Set this to the flag to pass the
202 If set to a blank value, components will be installed with debugging
208 to update your ports with
209 .Dq Li "make update" .
215 .Dq Li "make update" .
221 .Dq Li "make update" .
226 The hostname of the sup server to use when doing
227 .Dq Li "make update" .
233 .Dq Li "make update" .
235 .Pa /usr/share/examples/cvsup/standard\-supfile .
241 .Dq Li "make update" .
243 .Pa /usr/share/examples/cvsup/secure\-supfile .
249 .Dq Li "make update" .
251 .Pa /usr/share/examples/cvsup/secure\-supfile .
257 .Dq Li "make update" .
259 .Pa /usr/share/examples/cvsup/doc\-supfile .
265 when WARNS is in effect.
268 The following list provides a name and short description for variables
269 that are only used doing a kernel build:
271 .It Va BOOT_COMCONSOLE_PORT
273 The port address to use for the console if the boot blocks have
274 been configured to use a serial console instead of the keyboard/video card.
275 .It Va BOOT_COMCONSOLE_SPEED
277 The baud rate to use for the console if the boot blocks have
278 been configured to use a serial console instead of the keyboard/video card.
281 Controls the compiler settings when building the
283 Optimization levels above
286 are not guaranteed to work.
289 Controls which kernel configurations will be
291 .Dq Li "${MAKE} buildkernel"
293 .Dq Li "${MAKE} installkernel" .
295 .Bd -literal -offset indent
296 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
299 will build the kernels specified by the config files
300 .Pa MINE , DEBUG , GENERIC ,
303 and install the kernel specified by the config file
307 .It Va LOADER_TFTP_SUPPORT
309 While not a buildkernel-affected option, there is no better place for this.
312 loader retrieves the kernel via NFS.
313 Defining this and recompiling
314 .Pa /usr/src/sys/boot
315 will cause it to retrieve the kernel via TFTP.
316 This allows pxeboot to load a custom BOOTP diskless kernel yet
317 still mount the server's
319 rather than load the server's kernel.
320 .It Va NO_CPU_COPTFLAGS
322 Setting this variable will prevent CPU specific compiler flags
323 from being automatically added to
326 .It Va NO_KERNELCLEAN
328 Set this to skip the clean target when using
329 .Dq Li "${MAKE} buildkernel" .
330 .It Va NO_KERNELCONFIG
332 Set this to skip running
335 .Dq Li "${MAKE} buildkernel" .
336 .It Va NO_KERNELDEPEND
338 Set this to skip running
339 .Dq Li "${MAKE} depend"
341 .Dq Li "${MAKE} buildkernel" .
342 .It Va NO_KERNEL_OLD_STRIP
344 Set this to skip stripping debugging symbols from old kernel and modules
345 (kernel.old, modules.old) during
346 .Dq Li "${MAKE} installkernel" .
349 Set to not build modules with the kernel.
352 The following list provides a name and short description for variables
353 that are used during the world build:
355 .It Va ENABLE_SUID_K5SU
357 Set this if you wish to use the k5su utility.
358 Otherwise, it will be installed without the set-user-ID bit set.
359 This is only relevant if
362 .It Va ENABLE_SUID_SSH
366 with the setuid bit turned on.
367 .It Va MODULES_WITH_WORLD
369 Set to build modules with the system instead of the kernel.
372 Set to not build BIND.
375 Set to not build crypto code.
378 Set to not build CVS.
383 and related libraries.
386 Set to not build games.
389 Set to not build the upcoming version of GCC (4.1).
396 Set to not build isdn4bsd package.
399 Set to not build IP Filter package.
404 (reentrant version of
410 and related programs.
411 .It Va NO_MAILWRAPPER
425 Set to not build Objective C support.
428 Set to not build OpenSSH.
431 Set to not build OpenSSL (implies
437 and related programs.
440 Set to not enter the share subdirectory.
443 Set to not compile in X\-Windows support (e.g.\&
447 Set this to disable cleaning during
448 .Dq Li "make buildworld" .
449 This should not be set unless you know what you are doing.
453 .Dq Li "${MAKE} clean"
455 .Dq Li "${MAKE} cleandir" .
458 Set to not install certain components with flag fschg.
459 This is useful in a jailed environment.
462 Set to not make or install
465 .It Va NOINFOCOMPRESS
467 Set to not compress the info pages.
470 Set to not build manual pages
473 Set to not compress the manual pages.
476 Set to avoid compiling profiled libraries.
479 Set to disable the installation of
481 with the set-user-ID bit on.
486 configuration file to use at install time.
487 The value should include the full path to the
490 .Pa /etc/mail/myconfig.mc .
491 Use with caution as a make install will overwrite any existing
492 .Pa /etc/mail/sendmail.cf .
496 .It Va SENDMAIL_SUBMIT_MC
500 configuration file for mail submission
501 to use at install time.
502 The value should include the full path to the
505 .Pa /etc/mail/mysubmit.mc .
506 Use with caution as a make install will overwrite any existing
507 .Pa /etc/mail/submit.cf .
508 .It Va SENDMAIL_ADDITIONAL_MC
512 files which should be built into
515 The value should include the full path to the
519 .Pa /etc/mail/bar.mc .
520 .It Va SENDMAIL_CF_DIR
522 Override the default location for the
524 configuration files used to build a
529 .It Va SENDMAIL_M4_FLAGS
538 .It Va SENDMAIL_CFLAGS
540 Flags to pass to the compile command when building
544 flags can be used to provide SASL support with setting such as:
545 .Bd -literal -offset indent
546 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
547 SENDMAIL_LDFLAGS=-L/usr/local/lib
548 SENDMAIL_LDADD=-lsasl
550 .It Va SENDMAIL_LDFLAGS
554 command when building
556 .It Va SENDMAIL_LDADD
558 Flags to add to the end of the
560 command when building
562 .It Va SENDMAIL_DPADD
564 Extra dependencies to add when building
566 .It Va SENDMAIL_SET_USER_ID
570 as a set-user-ID root binary instead of a set-group-ID binary
572 .Pa /etc/mail/submit.{cf,mc} .
573 Use of this flag is not recommended and the alternative advice in
575 should be followed instead if at all possible.
576 .It Va SENDMAIL_MAP_PERMS
578 Mode to use when generating alias and map database files using
579 .Pa /etc/mail/Makefile .
580 The default value is 0640.
581 .It Va TOP_TABLE_SIZE
584 uses a hash table for the user names. The size of this hash can be tuned
585 to match the number of local users. The table size should be a prime number
586 approximately twice as large as the number of lines in
588 The default number is 20011.
591 Set to build the IDEA encryption code.
592 This code is patented in the USA and many European countries.
594 .Em "YOUR RESPONSIBILITY"
595 to determine if you can legally use IDEA.
598 Set this to build Kerberos5 (KTH Heimdal).
600 This is still experimental code.
603 The following list provides a name and short description for variables
604 that are used when building documentation.
608 The list of languages and encodings to build and install.
611 The default format for system documentation, depends on your
615 for simple printers or
617 for postscript or graphics printers with a ghostscript
619 .It Va GROFF_PAPER_SIZE
621 The default paper size for
629 .Bl -tag -width /etc/defaults/make.conf -compact
630 .It Pa /etc/defaults/make.conf
631 .It Pa /etc/make.conf
632 .It Pa /usr/src/Makefile
633 .It Pa /usr/src/Makefile.inc1
644 file appeared sometime before
647 This manual page was written by
648 .An Mike W. Meyer Aq mwm@mired.org .
650 This manual page may occasionally be out of date with respect to
651 the options currently available for use in
654 .Pa /etc/defaults/make.conf
655 file for the latest options which are available.