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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 .It Va STATIC_LOCALES
244 Set to a list of locales to build into statically-linked binaries.
245 Currently supported locales are: BIG5 EUC EUCTW ISO2022 MSKanji UTF8
248 The following list provides a name and short description for variables
249 that are only used doing a kernel build:
251 .It Va BOOT_COMCONSOLE_PORT
253 The port address to use for the console if the boot blocks have
254 been configured to use a serial console instead of the keyboard/video card.
255 .It Va BOOT_COMCONSOLE_SPEED
257 The baud rate to use for the console if the boot blocks have
258 been configured to use a serial console instead of the keyboard/video card.
261 Controls the compiler settings when building the
263 Optimization levels above
266 are not guaranteed to work.
269 Controls which kernel configurations will be
271 .Dq Li "${MAKE} buildkernel"
273 .Dq Li "${MAKE} installkernel" .
275 .Bd -literal -offset indent
276 KERNCONF=MINE DEBUG GENERIC OTHERMACHINE
279 will build the kernels specified by the config files
280 .Pa MINE , DEBUG , GENERIC ,
283 and install the kernel specified by the config file
287 .It Va LOADER_TFTP_SUPPORT
289 While not a buildkernel-affected option, there is no better place for this.
292 loader retrieves the kernel via NFS.
293 Defining this and recompiling
294 .Pa /usr/src/sys/boot
295 will cause it to retrieve the kernel via TFTP.
296 This allows pxeboot to load a custom BOOTP diskless kernel yet
297 still mount the server's
299 rather than load the server's kernel.
300 .It Va NO_CPU_COPTFLAGS
302 Setting this variable will prevent CPU specific compiler flags
303 from being automatically added to
306 .It Va NO_KERNELCLEAN
308 Set this to skip the clean target when using
309 .Dq Li "${MAKE} buildkernel" .
310 .It Va NO_KERNELCONFIG
312 Set this to skip running
315 .Dq Li "${MAKE} buildkernel" .
316 .It Va NO_KERNELDEPEND
318 Set this to skip running
319 .Dq Li "${MAKE} depend"
321 .Dq Li "${MAKE} buildkernel" .
322 .It Va NO_KERNEL_OLD_STRIP
324 Set this to skip stripping debugging symbols from old kernel and modules
325 (kernel.old, modules.old) during
326 .Dq Li "${MAKE} installkernel" .
329 Set to not build modules with the kernel.
332 The following list provides a name and short description for variables
333 that are used during the world build:
335 .It Va ENABLE_SUID_SSH
339 with the setuid bit turned on.
340 .It Va MODULES_WITH_WORLD
342 Set to build modules with the system instead of the kernel.
345 Set to not build BIND.
348 Set to not build crypto code.
351 Set to not build CVS.
354 Set to not build games.
357 Set to not build the newer version of GCC (4.4).
364 Set to not build isdn4bsd package.
367 Set to not build IP Filter package.
372 (reentrant version of
378 and related programs.
379 .It Va NO_MAILWRAPPER
386 Set to not build Objective C support.
389 Set to not build OpenSSH.
392 Set to not build OpenSSL (implies
398 and related programs.
401 Set to not enter the share subdirectory.
404 Set to not compile in X\-Windows support (e.g.\&
408 Set this to disable cleaning during
409 .Dq Li "make buildworld" .
410 This should not be set unless you know what you are doing.
414 .Dq Li "${MAKE} clean"
416 .Dq Li "${MAKE} cleandir" .
419 Set to not install certain components with flag schg.
420 This is useful in a jailed environment.
423 Set to not make or install
426 .It Va NOINFOCOMPRESS
428 Set to not compress the info pages.
431 Set to not build manual pages
434 Set to not compress the manual pages.
437 Set to avoid compiling profiled libraries.
440 Set to disable the installation of
442 with the set-user-ID bit on.
447 configuration file to use at install time.
448 The value should include the full path to the
451 .Pa /etc/mail/myconfig.mc .
452 Use with caution as a make install will overwrite any existing
453 .Pa /etc/mail/sendmail.cf .
457 .It Va SENDMAIL_SUBMIT_MC
461 configuration file for mail submission
462 to use at install time.
463 The value should include the full path to the
466 .Pa /etc/mail/mysubmit.mc .
467 Use with caution as a make install will overwrite any existing
468 .Pa /etc/mail/submit.cf .
469 .It Va SENDMAIL_ADDITIONAL_MC
473 files which should be built into
476 The value should include the full path to the
480 .Pa /etc/mail/bar.mc .
481 .It Va SENDMAIL_CF_DIR
483 Override the default location for the
485 configuration files used to build a
490 .It Va SENDMAIL_M4_FLAGS
499 .It Va SENDMAIL_CFLAGS
501 Flags to pass to the compile command when building
505 flags can be used to provide SASL support with setting such as:
506 .Bd -literal -offset indent
507 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
508 SENDMAIL_LDFLAGS=-L/usr/local/lib
509 SENDMAIL_LDADD=-lsasl
511 .It Va SENDMAIL_LDFLAGS
515 command when building
517 .It Va SENDMAIL_LDADD
519 Flags to add to the end of the
521 command when building
523 .It Va SENDMAIL_DPADD
525 Extra dependencies to add when building
527 .It Va SENDMAIL_SET_USER_ID
531 as a set-user-ID root binary instead of a set-group-ID binary
533 .Pa /etc/mail/submit.{cf,mc} .
534 Use of this flag is not recommended and the alternative advice in
536 should be followed instead if at all possible.
537 .It Va SENDMAIL_MAP_PERMS
539 Mode to use when generating alias and map database files using
540 .Pa /etc/mail/Makefile .
541 The default value is 0640.
548 to configure the system's default threading library.
551 .It Va TOP_TABLE_SIZE
554 uses a hash table for the user names. The size of this hash can be tuned
555 to match the number of local users. The table size should be a prime number
556 approximately twice as large as the number of lines in
558 The default number is 20011.
561 Set to build the IDEA encryption code.
562 This code is patented in the USA and many European countries.
564 .Em "YOUR RESPONSIBILITY"
565 to determine if you can legally use IDEA.
566 .It Va WANT_INSTALLER
568 Set to build the installer.
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 .