1.\" Copyright (c) 2000 2.\" Mike W. Meyer 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/share/man/man5/make.conf.5,v 1.12.2.30 2003/05/18 17:05:55 brueffer Exp $ 26.\" 27.Dd October 28, 2015 28.Dt MAKE.CONF 5 29.Os 30.Sh NAME 31.Nm make.conf 32.Nd system build information 33.Sh DESCRIPTION 34The file 35.Nm 36contains settings that control the compilation of the 37.Dx 38sources. 39The file 40.Nm 41is generally created by the system administrator when the values need 42to be changed from their defaults. 43.Pp 44The purpose of 45.Nm 46is not to run commands or perform compilation actions 47directly. 48Instead, it is included by the various makefiles in 49.Pa /usr/src 50which conditionalize their internal actions according to the settings 51found there. 52.Pp 53The 54.Pa /etc/make.conf 55file is included from the appropriate 56.Pa Makefile 57which specifies the default settings for all the available options. 58Options need only be specified in 59.Pa /etc/make.conf 60when the system administrator wishes to override these defaults. 61.Pp 62The build procedures occur in three areas: world, kernel, and 63documentation. 64Variables set in 65.Nm 66may be applicable during builds in one, two, or all of these areas. 67They may be specified for a particular build via the 68.Fl D 69option of 70.Xr make 1 . 71.Pp 72The following lists provide a name and short description for each 73variable you can use during the indicated builds. 74The values of variables flagged as 75.Vt bool 76are ignored; the variable being set at all (even to 77.Dq Li FALSE 78or 79.Dq Li NO ) 80causes it to be treated as if it were set. 81.Pp 82The following list provides a name and short description for variables 83that are used for all builds, or are used by the 84.Pa makefiles 85for things other than builds. 86.Bl -tag -width Ar 87.It Va CPUTYPE 88.Pq Vt str 89Controls which processor should be targeted for generated code. 90This controls processor-specific optimizations in certain code 91(currently only OpenSSL) as well as modifying the value of 92.Va CFLAGS 93and 94.Va COPTFLAGS 95to contain the appropriate optimization directive to 96.Xr gcc 1 . 97The automatic setting of 98.Va CFLAGS 99and 100.Va COPTFLAGS 101may be overridden using the 102.Va NO_CPU_CFLAGS 103and 104.Va NO_CPU_COPTFLAGS 105variables, respectively. Refer to 106.Pa /usr/share/examples/etc/defaults/make.conf 107for a list of recognized 108.Va CPUTYPE 109options. 110.It Va CCVER 111.Pq Vt str 112Controls which GCC version to use by default. 113It should be set as 114.Li CCVER?= 115so as not to interfere with overrides from userland. 116We currently recommend that an override NOT be set in 117.Pa /etc/make.conf . 118Currently accepted values for compilers which are part of 119.Dx 120are 121.Dq gcc47 122and 123.Dq gcc50 124(default). 125All other values will handled according to the settings in 126.Xr compilers.conf 5 . 127.It Va WORLD_CCVER 128.Pq Vt str 129Controls which version of GCC builds the base system, including 130the kernel. 131.Dq gcc50 132is the default value. 133.It Va LDVER 134.Pq Vt str 135Controls which linker to use by default. Currently accepted 136values are 137.Dq ld.gold 138(GNU gold linker, default) and 139.Dq ld.bfd 140(classic GNU ld linker). 141.It Va WORLD_LDVER 142.Pq Vt str 143Controls which linker builds the base system, including 144the kernel. 145.Dq ld.bfd 146is the default value. 147.It Va BINUTILSVER 148.Pq Vt str 149Controls which binutils to use by default. 150Currently accepted values are 151.Dq binutils224 152and 153.Dq binutils225 154(default). 155.It Va WORLD_BINUTILSVER 156.Pq Vt str 157Controls which version of binutils builds the base system, including 158the kernel. 159.Dq binutils225 160is the default value. 161.It Va CFLAGS 162.Pq Vt str 163Controls the compiler setting when compiling C code. 164Optimization levels above 165.Fl O 166.Pq Fl O2 , No ... 167are not supported. 168.Va BDECFLAGS 169is provided as a set of 170.Xr gcc 1 171settings suggested by 172.An Bruce Evans Aq Mt bde@FreeBSD.org 173for developing and testing changes. 174They can be used, if set, by: 175.Bd -literal -offset indent 176CFLAGS+=${BDECFLAGS} 177.Ed 178.It Va DEBUG_FLAGS 179.Pq Vt str 180Similar to 181.Va CFLAGS 182but it will cause 183.Va STRIP 184to be set to a blank value, if set. 185Typically, 186.Va DEBUG_FLAGS 187is set to 188.Fl g 189for compiling with debug symbols. 190.It Va NO_CPU_CFLAGS 191.Pq Vt str 192Setting this variable will prevent CPU specific compiler flags 193from being automatically added to 194.Va CFLAGS 195during compile time. 196.It Va CXXFLAGS 197.Pq Vt str 198Controls the compiler settings when compiling C++ code. 199.Va CXXFLAGS 200is initially set to the value of 201.Va CFLAGS . 202If you want to add to the 203.Va CXXFLAGS 204value, use 205.Dq Li += 206instead of 207.Dq Li = . 208.It Va INSTALL 209.Pq Vt str 210the default install command. 211To have components compared before doing the install, use 212.Bd -literal -offset indent 213INSTALL="install -C" 214.Ed 215.It Va NO_BACKUP 216.Pq Vt str 217Inhibit automatic backup of world binaries as port of 218.Dq installworld 219.Xr make 1 220target. 221Default is unset. 222.It Va WORLD_BACKUP 223.Pq Vt str 224defines where system binaries will be backed up for the 225.Dq backupworld 226.Xr make 1 227target. 228The default is 229.Dq /var/backups/world_backup . 230.It Va AUTO_BACKUP 231.Pq Vt str 232defines where system binaries will be backed up automatically 233as part of the 234.Dq installworld 235.Xr make 1 236target. 237The default is 238.Dq Ev MAKEOBJDIRPREFIX Ns /world_binaries/ Ns Ev DESTDIR . 239.It Va LOCAL_DIRS 240.Pq Vt str 241List of directories that should be entered when running 242.Xr make 1 243in 244.Pa /usr/src . 245.It Va MAKE_SHELL 246.Pq Vt str 247Controls the shell used internally by 248.Xr make 1 249to process the command scripts in makefiles. 250.Xr sh 1 , 251.Xr ksh 1 , 252and 253.Xr csh 1 254all currently supported. 255.Bd -literal -offset indent 256MAKE_SHELL?=sh 257.Ed 258.It Va MODULES_OVERRIDE 259.Pq Vt str 260Set to a list of modules to build instead of all of them. 261.It Va MTREE_FOLLOWS_SYMLINKS 262.Pq Vt str 263Set this to 264.Dq Fl L 265to cause 266.Xr mtree 8 267to follow symlinks. 268.It Va STRIP 269.Pq Vt str 270Set this to the flag to pass to the 271.Xr strip 1 272command. 273If set to a blank value, debug symbols will not be removed. 274.Va STRIP 275is automatically set to a blank value if 276.Va DEBUG_FLAGS 277is set. 278.It Va WANT_HESIOD 279.Pq Vt bool 280Set this to build 281.Xr hesiod 3 282support into libc. 283.It Va NO_NS_CACHING 284.Pq Vt bool 285Set this to disable name caching in the nsswitch subsystem. 286The generic caching daemon, 287.Xr nscd 8 , 288will not be built either if this option is set. 289.It Va NO_WERROR 290Set this if you don't want 291.Fl Werror 292to be added to 293.Va CWARNFLAGS 294or used in the kernel build. 295.It Va STATIC_LOCALES 296.Pq Vt str 297Set to a list of locales to build into statically-linked binaries. 298Currently supported locales are: BIG5 EUC EUCTW ISO2022 MSKanji UTF8 299.El 300.Pp 301The following list provides a name and short description for variables 302that are only used doing a kernel build: 303.Bl -tag -width Ar 304.It Va BOOT_COMCONSOLE_PORT 305.Pq Vt str 306The port address to use for the console if the boot blocks have 307been configured to use a serial console instead of the keyboard/video card. 308.It Va BOOT_COMCONSOLE_SPEED 309.Pq Vt int 310The baud rate to use for the console if the boot blocks have 311been configured to use a serial console instead of the keyboard/video card. 312.It Va COPTFLAGS 313.Pq Vt str 314Controls the compiler settings when building the 315kernel. 316Optimization levels above 317.Fl O 318.Pq Fl O2 , No ... 319are not guaranteed to work. 320.It Va KERNCONF 321.Pq Vt str 322Controls which kernel configurations will be 323built by 324.Dq Li "${MAKE} buildkernel" 325and installed by 326.Dq Li "${MAKE} installkernel" . 327For example, 328.Bd -literal -offset indent 329KERNCONF=MINE DEBUG X86_64_GENERIC OTHERMACHINE 330.Ed 331.Pp 332will build the kernels specified by the config files 333.Pa MINE , DEBUG , X86_64_GENERIC , 334and 335.Pa OTHERMACHINE , 336and install the kernel specified by the config file 337.Pa MINE . 338It defaults to 339.Pa X86_64_GENERIC . 340.It Va NO_CPU_COPTFLAGS 341.Pq Vt str 342Setting this variable will prevent CPU specific compiler flags 343from being automatically added to 344.Va COPTFLAGS 345during compile time. 346.It Va NO_KERNELCLEAN 347.Pq Vt bool 348Set this to skip the clean target when using 349.Dq Li "${MAKE} buildkernel" . 350.It Va NO_KERNELCONFIG 351.Pq Vt bool 352Set this to skip running 353.Xr config 8 354during 355.Dq Li "${MAKE} buildkernel" . 356.It Va NO_KERNELDEPEND 357.Pq Vt bool 358Set this to skip running 359.Dq Li "${MAKE} depend" 360during 361.Dq Li "${MAKE} buildkernel" . 362.It Va NO_KERNEL_OLD_STRIP 363.Pq Vt bool 364Set this to skip stripping debugging symbols from old kernel and modules 365(kernel.old, modules.old) during 366.Dq Li "${MAKE} installkernel" . 367.It Va NO_MODULES 368.Pq Vt bool 369Set to not build modules with the kernel. 370.El 371.Pp 372The following list provides a name and short description for variables 373that are used during the world build: 374.Bl -tag -width Ar 375.It Va ENABLE_SUID_SSH 376.Pq Vt bool 377Set this to install 378.Xr ssh 1 379with the setuid bit turned on. 380.It Va MODULES_WITH_WORLD 381.Pq Vt bool 382Set to build modules with the system instead of the kernel. 383.It Va NO_ALTBINUTILS 384.Pq Vt bool 385Set to not build the alternative (non-default) set of binutils. 386.It Va NO_ALTCOMPILER 387.Pq Vt bool 388Set to not build the designated secondary compiler (GCC 4.7). 389.It Va NO_CRYPT 390.Pq Vt bool 391Set to not build crypto code. 392.It Va NO_CVS 393.Pq Vt bool 394Set to not build CVS. 395.It Va NO_GAMES 396.Pq Vt bool 397Set to not build games. 398.It Va NO_GDB 399.Pq Vt bool 400Set to not build 401.Xr gdb 1 402.It Va NO_LIBC_R 403.Pq Vt bool 404Set to not build 405.Nm libc_r 406(reentrant version of 407.Nm libc ) . 408.It Va NO_LPR 409.Pq Vt bool 410Set to not build 411.Xr lpr 1 412and related programs. 413.It Va NO_OPENSSH 414.Pq Vt bool 415Set to not build OpenSSH. 416.It Va NO_OPENSSL 417.Pq Vt bool 418Set to not build OpenSSL (implies 419.Va NO_OPENSSH ) . 420.It Va NO_SHARE 421.Pq Vt bool 422Set to not enter the share subdirectory. 423.It Va NOCLEAN 424.Pq Vt bool 425Set this to disable cleaning during 426.Dq Li "make buildworld" . 427This should not be set unless you know what you are doing. 428.It Va NOCLEANDIR 429.Pq Vt bool 430Set this to run 431.Dq Li "${MAKE} clean" 432instead of 433.Dq Li "${MAKE} cleandir" . 434.It Va NOFSCHG 435.Pq Vt bool 436Set to not install certain components with flag schg. 437This is useful in a jailed environment. 438.It Va NOMAN 439.Pq Vt bool 440Set to not build manual pages 441.It Va NOMANCOMPRESS 442.Pq Vt bool 443Set to not compress the manual pages. 444.It Va NOPROFILE 445.Pq Vt bool 446Set to avoid compiling profiled libraries. 447.It Va PPP_NOSUID 448.Pq Vt bool 449Set to disable the installation of 450.Xr ppp 8 451with the set-user-ID bit on. 452.It Va XAUTH_PATH 453.Pq Vt str 454The path to the xauth program used by OpenSSH client. 455.It Va SENDMAIL_MC 456.Pq Vt str 457The default 458.Xr m4 1 459configuration file to use at install time. 460The value should include the full path to the 461.Pa .mc 462file, e.g., 463.Pa /etc/mail/myconfig.mc . 464Use with caution as a make install will overwrite any existing 465.Pa /etc/mail/sendmail.cf . 466.It Va SENDMAIL_SUBMIT_MC 467.Pq Vt str 468The default 469.Xr m4 1 470configuration file for mail submission 471to use at install time. 472The value should include the full path to the 473.Pa .mc 474file, e.g., 475.Pa /etc/mail/mysubmit.mc . 476Use with caution as a make install will overwrite any existing 477.Pa /etc/mail/submit.cf . 478.It Va SENDMAIL_CF_DIR 479.Pq Vt str 480Override the default location for the 481.Xr m4 1 482configuration files used to build a 483.Pa .cf 484file from a 485.Pa .mc 486file. 487The default is 488.Pa /usr/local/share/sendmail/cf . 489.It Va SENDMAIL_M4_FLAGS 490.Pq Vt str 491Flags passed to 492.Xr m4 1 493when building a 494.Pa .cf 495file from a 496.Pa .mc 497file. 498.It Va SENDMAIL_MAP_PERMS 499.Pq Vt str 500Mode to use when generating alias and map database files using 501.Pa /etc/mail/Makefile . 502The default value is 0640. 503.It Va THREAD_LIB 504.Pq Vt str 505Set to either 506.Li c_r 507or 508.Li thread_xu 509to configure the system's default threading library. 510The default is 511.Li thread_xu . 512.It Va WANT_IDEA 513.Pq Vt bool 514Set to build the IDEA encryption code. 515This code is patented in the USA and many European countries. 516It is 517.Em "YOUR RESPONSIBILITY" 518to determine if you can legally use IDEA. 519.It Va WANT_INSTALLER 520.Pq Vt bool 521Set to build the installer. 522.It Va WANT_NETGRAPH7 523.Pq Vt bool 524Set to build a newer, experimental 525.Xr netgraph 4 526userland. 527It has to be accompanied by 528.Dv NETGRAPH7* 529options in the kernel. 530.El 531.Pp 532The following list provides a name and short description for variables 533that are used when building documentation. 534.Bl -tag -width Ar 535.It Va PRINTERDEVICE 536.Pq Vt str 537The default format for system documentation, depends on your 538printer. 539This can be set to 540.Dq Li ascii 541for simple printers or 542.Dq Li ps 543for postscript or graphics printers with a ghostscript 544filter. 545.It Va GROFF_PAPER_SIZE 546.Pq Vt str 547The default paper size for 548.Xr groff 1 549(either 550.Dq letter 551or 552.Dq A4 ) . 553.El 554.Sh FILES 555.Bl -tag -width /etc/defaults/make.conf -compact 556.It Pa /etc/defaults/make.conf 557.It Pa /etc/make.conf 558.It Pa /usr/src/Makefile 559.It Pa /usr/src/Makefile.inc1 560.El 561.Sh SEE ALSO 562.Xr gcc 1 , 563.Xr install 1 , 564.Xr make 1 , 565.Xr lpd 8 566.Sh HISTORY 567The 568.Nm 569file appeared sometime before 570.Fx 4.0 . 571.Sh AUTHORS 572This manual page was written by 573.An Mike W. Meyer Aq Mt mwm@mired.org . 574