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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
135 Controls the compiler setting when compiling C code.
136 Optimization levels above
141 is provided as a set of
143 settings suggested by
144 .An "Bruce Evans" Aq bde@FreeBSD.org
145 for developing and testing changes.
146 They can be used, if set, by:
147 .Bd -literal -offset indent
156 to be set to a blank value, if set.
161 for compiling with debug symbols.
164 Setting this variable will prevent CPU specific compiler flags
165 from being automatically added to
170 Controls the compiler settings when compiling C++ code.
172 is initially set to the value of
174 If you want to add to the
182 the default install command.
183 To have components compared before doing the install, use
184 .Bd -literal -offset indent
189 List any directories that should be entered when running make
194 Controls the shell used internally by
196 to process the command scripts in makefiles.
201 all currently supported.
202 .Bd -literal -offset indent
205 .It Va MODULES_OVERRIDE
207 Set to a list of modules to build instead of all of them.
208 .It Va MTREE_FOLLOWS_SYMLINKS
217 Set this to the flag to pass to the
220 If set to a blank value, debug symbols will not be removed.
222 is automatically set to a blank value if
232 Set this to disable name caching in the nsswitch subsystem.
233 The generic caching daemon,
235 will not be built either if this option is set.
237 Set this if you don't want
241 or used in the kernel build.
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 "${MAKE} installkernel" .
329 Set to not build modules with the kernel.
332 The following list provides a name and short description for variables
333 that are used during the world build:
335 .It Va ENABLE_SUID_SSH
339 with the setuid bit turned on.
340 .It Va MODULES_WITH_WORLD
342 Set to build modules with the system instead of the kernel.
345 Set to not build crypto code.
348 Set to not build CVS.
351 Set to not build games.
354 Set to not build the older version of GCC (4.1).
361 Set to not build isdn4bsd package.
366 (reentrant version of
372 and related programs.
373 .It Va NO_MAILWRAPPER
380 Set to not build Objective C support.
383 Set to not build OpenSSH.
386 Set to not build OpenSSL (implies
392 and related programs.
395 Set to not enter the share subdirectory.
398 Set to not compile in X\-Windows support (e.g.\&
402 Set this to disable cleaning during
403 .Dq Li "make buildworld" .
404 This should not be set unless you know what you are doing.
408 .Dq Li "${MAKE} clean"
410 .Dq Li "${MAKE} cleandir" .
413 Set to not install certain components with flag schg.
414 This is useful in a jailed environment.
417 Set to not make or install
420 .It Va NOINFOCOMPRESS
422 Set to not compress the info pages.
425 Set to not build manual pages
428 Set to not compress the manual pages.
431 Set to avoid compiling profiled libraries.
434 Set to disable the installation of
436 with the set-user-ID bit on.
441 configuration file to use at install time.
442 The value should include the full path to the
445 .Pa /etc/mail/myconfig.mc .
446 Use with caution as a make install will overwrite any existing
447 .Pa /etc/mail/sendmail.cf .
451 .It Va SENDMAIL_SUBMIT_MC
455 configuration file for mail submission
456 to use at install time.
457 The value should include the full path to the
460 .Pa /etc/mail/mysubmit.mc .
461 Use with caution as a make install will overwrite any existing
462 .Pa /etc/mail/submit.cf .
463 .It Va SENDMAIL_ADDITIONAL_MC
467 files which should be built into
470 The value should include the full path to the
474 .Pa /etc/mail/bar.mc .
475 .It Va SENDMAIL_CF_DIR
477 Override the default location for the
479 configuration files used to build a
484 .It Va SENDMAIL_M4_FLAGS
493 .It Va SENDMAIL_CFLAGS
495 Flags to pass to the compile command when building
499 flags can be used to provide SASL support with setting such as:
500 .Bd -literal -offset indent
501 SENDMAIL_CFLAGS=-I/usr/local/include -DSASL
502 SENDMAIL_LDFLAGS=-L/usr/local/lib
503 SENDMAIL_LDADD=-lsasl
505 .It Va SENDMAIL_LDFLAGS
509 command when building
511 .It Va SENDMAIL_LDADD
513 Flags to add to the end of the
515 command when building
517 .It Va SENDMAIL_DPADD
519 Extra dependencies to add when building
521 .It Va SENDMAIL_SET_USER_ID
525 as a set-user-ID root binary instead of a set-group-ID binary
527 .Pa /etc/mail/submit.{cf,mc} .
528 Use of this flag is not recommended and the alternative advice in
530 should be followed instead if at all possible.
531 .It Va SENDMAIL_MAP_PERMS
533 Mode to use when generating alias and map database files using
534 .Pa /etc/mail/Makefile .
535 The default value is 0640.
542 to configure the system's default threading library.
547 Set to build the IDEA encryption code.
548 This code is patented in the USA and many European countries.
550 .Em "YOUR RESPONSIBILITY"
551 to determine if you can legally use IDEA.
552 .It Va WANT_INSTALLER
554 Set to build the installer.
557 The following list provides a name and short description for variables
558 that are used when building documentation.
562 The list of languages and encodings to build and install.
565 The default format for system documentation, depends on your
569 for simple printers or
571 for postscript or graphics printers with a ghostscript
573 .It Va GROFF_PAPER_SIZE
575 The default paper size for
583 .Bl -tag -width /etc/defaults/make.conf -compact
584 .It Pa /etc/defaults/make.conf
585 .It Pa /etc/make.conf
586 .It Pa /usr/src/Makefile
587 .It Pa /usr/src/Makefile.inc1
598 file appeared sometime before
601 This manual page was written by
602 .An Mike W. Meyer Aq mwm@mired.org .