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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 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 "${MAKE} installkernel" .
330 Set to not build modules with the kernel.
333 The following list provides a name and short description for variables
334 that are used during the world build:
336 .It Va ENABLE_SUID_SSH
340 with the setuid bit turned on.
341 .It Va MODULES_WITH_WORLD
343 Set to build modules with the system instead of the kernel.
346 Set to not build BIND.
349 Set to not build crypto code.
352 Set to not build CVS.
355 Set to not build games.
358 Set to not build the newer version of GCC (4.4).
365 Set to not build isdn4bsd package.
368 Set to not build IP Filter package.
373 (reentrant version of
379 and related programs.
380 .It Va NO_MAILWRAPPER
387 Set to not build Objective C support.
390 Set to not build OpenSSH.
393 Set to not build OpenSSL (implies
399 and related programs.
402 Set to not enter the share subdirectory.
405 Set to not compile in X\-Windows support (e.g.\&
409 Set this to disable cleaning during
410 .Dq Li "make buildworld" .
411 This should not be set unless you know what you are doing.
415 .Dq Li "${MAKE} clean"
417 .Dq Li "${MAKE} cleandir" .
420 Set to not install certain components with flag schg.
421 This is useful in a jailed environment.
424 Set to not make or install
427 .It Va NOINFOCOMPRESS
429 Set to not compress the info pages.
432 Set to not build manual pages
435 Set to not compress the manual pages.
438 Set to avoid compiling profiled libraries.
441 Set to disable the installation of
443 with the set-user-ID bit on.
448 configuration file to use at install time.
449 The value should include the full path to the
452 .Pa /etc/mail/myconfig.mc .
453 Use with caution as a make install will overwrite any existing
454 .Pa /etc/mail/sendmail.cf .
458 .It Va SENDMAIL_SUBMIT_MC
462 configuration file for mail submission
463 to use at install time.
464 The value should include the full path to the
467 .Pa /etc/mail/mysubmit.mc .
468 Use with caution as a make install will overwrite any existing
469 .Pa /etc/mail/submit.cf .
470 .It Va SENDMAIL_ADDITIONAL_MC
474 files which should be built into
477 The value should include the full path to the
481 .Pa /etc/mail/bar.mc .
482 .It Va SENDMAIL_CF_DIR
484 Override the default location for the
486 configuration files used to build a
491 .It Va SENDMAIL_M4_FLAGS
500 .It Va SENDMAIL_CFLAGS
502 Flags to pass to the compile command when building
506 flags can be used to provide SASL support with setting such as:
507 .Bd -literal -offset indent
508 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
509 SENDMAIL_LDFLAGS=-L/usr/local/lib
510 SENDMAIL_LDADD=-lsasl
512 .It Va SENDMAIL_LDFLAGS
516 command when building
518 .It Va SENDMAIL_LDADD
520 Flags to add to the end of the
522 command when building
524 .It Va SENDMAIL_DPADD
526 Extra dependencies to add when building
528 .It Va SENDMAIL_SET_USER_ID
532 as a set-user-ID root binary instead of a set-group-ID binary
534 .Pa /etc/mail/submit.{cf,mc} .
535 Use of this flag is not recommended and the alternative advice in
537 should be followed instead if at all possible.
538 .It Va SENDMAIL_MAP_PERMS
540 Mode to use when generating alias and map database files using
541 .Pa /etc/mail/Makefile .
542 The default value is 0640.
549 to configure the system's default threading library.
554 Set to build the IDEA encryption code.
555 This code is patented in the USA and many European countries.
557 .Em "YOUR RESPONSIBILITY"
558 to determine if you can legally use IDEA.
559 .It Va WANT_INSTALLER
561 Set to build the installer.
564 The following list provides a name and short description for variables
565 that are used when building documentation.
569 The list of languages and encodings to build and install.
572 The default format for system documentation, depends on your
576 for simple printers or
578 for postscript or graphics printers with a ghostscript
580 .It Va GROFF_PAPER_SIZE
582 The default paper size for
590 .Bl -tag -width /etc/defaults/make.conf -compact
591 .It Pa /etc/defaults/make.conf
592 .It Pa /etc/make.conf
593 .It Pa /usr/src/Makefile
594 .It Pa /usr/src/Makefile.inc1
605 file appeared sometime before
608 This manual page was written by
609 .An Mike W. Meyer Aq mwm@mired.org .