xref: /netbsd-src/share/mk/bsd.README (revision b7b7574d3bf8eeb51a1fa3977b59142ec6434a55)
1#	$NetBSD: bsd.README,v 1.332 2014/05/08 13:58:34 phx Exp $
2#	@(#)bsd.README	8.2 (Berkeley) 4/2/94
3
4This is the README file for the make "include" files for the NetBSD
5source tree.  The files are installed in /usr/share/mk, and are,
6by convention, named with the suffix ".mk".
7
8Note, this file is not intended to replace reading through the .mk
9files for anything tricky.
10
11=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
12
13RANDOM THINGS WORTH KNOWING:
14
15The files are simply C-style #include files, and pretty much behave like
16you'd expect.  The syntax is slightly different in that a single '.' is
17used instead of the hash mark, i.e. ".include <bsd.prog.mk>".
18
19One difference that will save you lots of debugging time is that inclusion
20of the file is normally done at the *end* of the Makefile.  The reason for
21this is because .mk files often modify variables and behavior based on the
22values of variables set in the Makefile.  To make this work, remember that
23the FIRST target found is the target that is used, i.e. if the Makefile has:
24
25	a:
26		echo a
27	a:
28		echo a number two
29
30the command "make a" will echo "a".  To make things confusing, the SECOND
31variable assignment is the overriding one, i.e. if the Makefile has:
32
33	a=	foo
34	a=	bar
35
36	b:
37		echo ${a}
38
39the command "make b" will echo "bar".  This is for compatibility with the
40way the V7 make behaved.
41
42It's fairly difficult to make the BSD .mk files work when you're building
43multiple programs in a single directory.  It's a lot easier to split up the
44programs than to deal with the problem.  Most of the agony comes from making
45the "obj" directory stuff work right, not because we switched to a new version
46of make.  So, don't get mad at us, figure out a better way to handle multiple
47architectures so we can quit using the symbolic link stuff.  (Imake doesn't
48count.)
49
50The file .depend in the source directory is expected to contain dependencies
51for the source files.  This file is read automatically by make after reading
52the Makefile.
53
54The variable DESTDIR works as before.  It's not set anywhere but will change
55the tree where the file gets installed.
56
57The profiled libraries are no longer built in a different directory than
58the regular libraries.  A new suffix, ".po", is used to denote a profiled
59object, and ".pico" denotes a shared (position-independent) object.
60
61There are various make variables used during the build.
62
63Many variables support a (case sensitive) value of "no" or "yes",
64and are tested with  ${VAR} == "no"  and  ${VAR} != "no" .
65
66
67The basic rule for the variable naming scheme is as follows:
68
69HOST_xxx	A command that runs on the host machine regardless of
70		whether or not the system is being cross compiled, or
71		flags for such a command.
72
73MKxxx		Can be set to "no" to disable functionality, or
74		"yes" to enable it.
75		Usually defaults to "yes", although some variables
76		default to "no".
77		Due to make(1) implementation issues, if a temporary
78		command-line override of a mk.conf(5) or <bsd.own.mk>
79		setting is required whilst still honoring a particular
80		Makefile's setting of MKxxx, use
81			env MKxxx=value make
82		instead of
83			make MKxxx=value
84
85NOxxx		If defined, disables a feature.
86		Not intended for users.
87		This is to allow Makefiles to disable functionality
88		that they don't support (such as missing man pages).
89		NOxxx variables must be defined before <bsd.own.mk>
90		is included.
91
92TOOL_xxx	A tool that is provided as part of the USETOOLS
93		framework.  When not using the USETOOLS framework,
94		TOOL_xxx variables should refer to tools that are
95		already installed on the host system.
96
97The following variables that control how things are made/installed that
98are not set by default. These should not be set by Makefiles; they're for
99the user to define in MAKECONF (see <bsd.own.mk>, below, or mk.conf(5))
100or on the make(1) command line:
101
102BUILD 		If defined, 'make install' checks that the targets in the
103		source directories are up-to-date and remakes them if they
104                are out of date, instead of blindly trying to install
105                out of date or non-existent targets.
106
107MAKEVERBOSE	Control how "verbose" the standard make(1) rules are.
108		Default: 2
109		Supported values:
110		    0	Minimal output ("quiet")
111		    1	Describe what is occurring
112		    2	Describe what is occurring and echo the actual command
113		    3	Ignore the effect of the "@" prefix in make commands
114		    4	Trace shell commands using the shell's -x flag
115
116MKATF		If "no", don't build the Automated Testing Framework (ATF),
117		which includes the libatf-c, libatf-c++ and libatf-sh libraries
118		and the various command line tools.  Also, because the build of
119		the libraries is disabled, don't build the NetBSD test suite
120		either.
121		Default: yes
122
123MKBFD		Obsolete, use MKBINUTILS
124
125MKBINUTILS	If "no", don't build binutils (gas, ld, etc and libbfd,
126		libopcodes)
127		Default: yes
128
129MKBSDTAR	If "yes", use the libarchive based cpio and tar instead of
130		the pax frontends.
131		Default: no
132
133MKCATPAGES	If "no", don't build or install the catman pages.
134		Default: no
135
136MKCOMPAT  	If "no", don't build or install the src/compat.
137		Default: yes on amd64/mips64/sparc64, no elsewhere.
138
139MKCOMPLEX	If "no", don't build libm support for <complex.h>
140		Default: yes
141
142MKCRYPTO	If "no", no cryptography support will be built into the system,
143		and also acts as "MKKERBEROS=no".
144		Default: yes
145
146MKCRYPTO_RC5	If not "no", RC5 support will be built into libcrypto_rc5
147		Default: no
148
149MKCTF		If "no", do not build and install CTF tools, and also
150		don't generate and manipulate CTF data of ELF binaries
151		during build.
152		Default: no
153
154MKCVS		If "no", don't build or install cvs(1).
155		Default: yes
156
157MKDEBUG		If "no", don't build and install separate debugging symbols
158		into /usr/libdata/debug.
159		Default: no
160
161MKDEBUGLIB	Build *_g.a debugging libraries, which are compiled
162		with -DDEBUG.
163		Default: no
164
165MKDEPINCLUDES	If "yes" issue .include statements in the .depend file
166		instead of inlining the contents of the .d files. Useful
167		when stale dependencies are present, to list the exact
168		files that need refreshing. It is off by default because
169		it is possibly slower.
170		Default "no"
171
172MKDOC		If "no", don't build or install the documentation.
173		Default: yes
174
175MKDTRACE	If "no", do not build and install the kernel modules,
176		utilities and libraries used to implement the dtrace(1)
177		facility.
178		Default: no
179
180MKDYNAMICROOT	If "no", build programs in /bin and /sbin statically,
181		don't install certain libraries in /lib, and don't
182		install the shared linker into /libexec.
183		Default: yes
184
185MKEXTSRC        If not "no", 'make build' also descends into either src/extsrc
186		to cross-build programs and libraries externally added by
187		users, and automatically enables creation of those sets.
188		Default: no
189
190MKGCC		If "no", don't build gcc(1) or any of the GCC-related
191		libraries (libgcc, libobjc, libstdc++).
192		Default: yes
193
194MKGCCCMDS	If "no", don't build gcc(1), but do build the GCC-related
195		libraries (libgcc, libobjc, libstdc++).
196		Default: yes
197
198MKGDB		If "no", don't build gdb(1).
199		Default: yes
200
201MKHESIOD	If "no", disables building of Hesiod infrastructure
202		(libraries and support programs).
203		Default: yes
204
205MKHOSTOBJ	If not "no", for programs intended to be run on the compile
206		host, the name, release, and architecture of the host
207		operating system will be suffixed to the name of the object
208		directory created by "make obj".
209		Default: no
210
211MKHTML		If "no", don't build or install the HTML man pages.
212		Default: yes
213
214MKIEEEFP	If "no", don't add code for IEEE754/IEC60559 conformance.
215		Has no effect on most platforms.
216		Default: yes
217
218MKSTRIPIDENT	Strip the RCS IDs from program binaries and shared libraries.
219		Default: no
220
221MKINET6		If "no", disables building of INET6 (IPv6) infrastructure
222		(libraries and support programs).  This option must not be
223		set to "no" if MKX11 is not "no".
224		Default: yes
225
226MKINFO		If "no", don't build or install Info documentation from
227		Texinfo source files.
228		Default: yes
229
230MKIPFILTER	If "no", don't build or install the IP Filter programs and LKM.
231		Default: yes
232
233MKISCSI		If "no", don't build or install iSCSI library or applications
234		(depends on libpthread.)
235		Default: yes
236
237MKKDEBUG	If "yes", force building of kernel symbol info and creation
238		of netbsd.gdb in all kernel builds, independently of the
239		settings for "makeoptions DEBUG" in the kernel config file.
240
241MKKERBEROS	If "no", disables building of Kerberos v5
242		infrastructure (libraries and support programs).
243		Default: yes
244
245MKKMOD		If "no", disables building of kernel modules.
246		Default: yes
247
248MKKYUA		If "no", don't build Kyua nor its dependent library Lutok.
249		Note that setting this to "no" does not disable the build of
250		the NetBSD test suite itself; the build of the tests is
251		controlled by the MKATF knob.
252		Default: no (until the import is done and validated)
253
254MKLDAP		If "no", disables building of LDAP infrastructure
255		(libraries and support programs).
256		Default: yes
257
258MKLIBCXX	If not "no", build and install libc++.
259		Default: no
260
261MKLIBSTDCXX	If not "no", build and install libstdc++.
262		Default: yes
263
264MKLINKLIB	If "no", act as "MKLINT=no MKPICINSTALL=no MKPROFILE=no".
265		Also:
266			- don't install the .a libraries
267			- don't install _pic.a libraries on PIC systems
268			- don't build .a libraries on PIC systems
269			- don't install the .so symlink on ELF systems
270		I.e, only install the shared library (and the .so.major
271		symlink on ELF).
272		Default: yes
273
274MKLINT		If "no", don't build or install the lint libraries.
275		Default: yes
276
277MKLVM		If "no", don't build or install the logical volume manager
278		and device mapper tools and libraries
279		Default: yes
280
281MKMAN		If "no", don't build or install the man or catman pages,
282		and also acts as "MKCATPAGES=no MKHTML=no".
283		Default: yes
284
285MKMANDOC	If "yes", mandoc is built as tool and used to compile
286		catman or html pages.  A directory can be exempted by
287		defining NOMANDOC.  Individual man pages are exempted
288		if NOMANDOC.${target} is set to "yes".
289		Default: yes
290
291MKMANZ		If not "no", compress manual pages at installation time.
292		Default: no
293
294MKMDNS		If "no", disables building of mDNS infrastructure
295		(libraries and support programs).
296		Default: yes
297
298MKNLS		If "no", don't build or install the NLS files and locale
299		definition files.
300		Default: yes
301
302MKNPF		If "no", don't build or install the NPF and its modules.
303		Default: yes
304
305MKOBJ		If "no", don't enable the rule which creates objdirs,
306		and also acts as "MKOBJDIRS=no".
307		Default: yes
308
309MKOBJDIRS	If "no", don't create objdirs during a "make build".
310		Default: no
311
312MKPAM		If "no", disables building of PAM authentication
313		infrastructure (libraries and support programs).
314		Default: yes
315
316MKPCC		If "no", don't build pcc(1) or any of the PCC-related
317		libraries (libpcc, libpccsoftfloat).
318		Default: no
319
320MKPF		If "no", don't build or install the pf programs and LKM.
321		Default: yes
322
323MKPIC		If "no", don't build or install shared libraries, and
324		also acts as "MKPICLIB=no"
325		Default: yes (for MACHINE_ARCHs that support it)
326
327MKPICINSTALL	If "no", don't install the *_pic.a libraries.
328		Default: yes
329
330MKPICLIB	If "no", don't build *_pic.a libraries, and build the
331		shared object libraries from the .a libraries.
332		A symlink is installed in ${DESTDIR}/usr/lib for the
333		_pic.a library pointing to the .a library.
334		Default: yes
335
336MKPIE		If "no", create regular executables. Otherwise create
337		PIE (Position Independent Executables).
338		Default: no
339
340MKPIGZGZIP	If "no", only install pigz as pigz, not gzip.
341		Default: no
342
343MKPOSTFIX	If "no", don't build or install postfix(1).
344		Default: yes
345
346MKPROFILE	If "no", don't build or install the profiling (*_p.a) libraries.
347		Default: yes
348
349MKREPRO         If "yes", create reproducable builds. This enables
350		different switches to make two builds from the same source tree
351		result in the same build results.
352		Default: no
353
354MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
355		MKMAN=no MKNLS=no".
356		I.e, don't build catman pages, documentation, Info
357		documentation, man pages, NLS files, ...
358		Default: yes
359
360MKSKEY		If "no", disables building of S/key authentication
361		infrastructure (libraries and support programs).
362		Default: yes
363
364MKSLJIT		If "no", disables building of sljit (stack-less platform
365		independent JIT compiler) private library and tests.
366		Default: yes on amd64, i386 and sparc, no elsewhere.
367
368MKSOFTFLOAT	If not "no", build with options to enable the compiler to
369		generate output containing library calls for floating
370		point and possibly soft-float library support.
371		Default: no
372
373MKSTATICLIB	If "no", don't build or install the normal static (*.a)
374		libraries.
375		Default: yes
376
377MKTPM		If "no" then don't build the Trusted Platform Module
378		infrastructure.
379		Default: no
380
381MKUNPRIVED	If not "no", don't set the owner/group/mode when installing
382		files or directories, and keep a metadata log of what
383		the owner/group/mode should be.  This allows a
384		non-root "make install".
385		Default: no
386
387MKUPDATE 	If not "no", 'make install' only installs targets that are
388		more recently modified in the source directories that their
389		installed counterparts.
390		Default: no
391
392MKX11		If not "no", depending on the value of ${X11FLAVOUR},
393		'make build' also descends into either src/x11 (XFree86) or
394		src/external/mit/xorg (modular Xorg) to cross-build X11 and
395		automatically enables creation of X sets.
396		Default: no
397
398MKX11FONTS	If not "no", if ${X11FLAVOUR} is "Xorg", do not build or
399		install the X fonts.  The xfont set is still created but
400		will be empty.
401		Default: yes
402
403MKX11MOTIF:	If "yes" and ${X11FLAVOUR} is "Xorg", build the native X11
404		libGLw with Motif stubs.  If Motif is not installed in the
405		default location /usr/pkg, the location can be specified
406		using the X11MOTIFPATH variable.
407		Default: no
408
409MKYP		If "no", disables building of YP (NIS)
410		infrastructure (libraries and support programs).
411		Default: yes
412
413MKZFS		If "no", do not build and install utilities and libraries
414		used to manage ZFS file system. Do not build zfs and solaris
415		compatibility kernel modules.
416		Default: yes on i386/amd64, no elsewhere.
417
418MKRUMP		If "no", do not build and install rump related headers,
419		libraries, and programs.
420		Default: yes
421
422USE_HESIOD	If "no", disables building Hesiod support into
423		various system utilities/libraries that support it.
424		If ${MKHESIOD} is "no", USE_HESIOD will also be
425		forced to "no".
426
427USE_INET6	If "no", disables building INET6 (IPv6) support into
428		various system utilities/libraries that support it.
429		If ${MKINET6} is "no", USE_INET6 will also be
430		forced to "no".
431
432USE_JEMALLOC	If "no", disables building the "jemalloc" allocator
433		designed for improved performance with threaded
434		applications.  The "phkmalloc" allocator as used up
435		before NetBSD-5.0 will be substituted.
436
437USE_KERBEROS	If "no", disables building Kerberos v5
438		support into various system utilities/libraries that
439		support it.  If ${MKKERBEROS} is "no", USE_KERBEROS
440		will also be forced to "no".
441
442USE_LDAP	If "no", disables building LDAP support into various
443		system utilities/libraries that support it.
444		If ${MKLDAP} is "no", USE_LDAP will also be forced to "no".
445
446USE_PAM		If "no", disables building PAM authentication support
447		into various system utilities/libraries that support it.
448		If ${MKPAM} is "no", USE_PAM will also be forced to "no".
449
450USE_SKEY	If "no", disables building S/key authentication
451		support into various system utilities/libraries that
452		support it.  If ${MKSKEY} is "no", USE_SKEY will
453		also be forced to "no".
454		Default: no
455
456USE_SSP		If "no", disables GCC stack protection code, which
457		detects stack overflows and aborts the program. The
458		stack protection code imposes a performance penalty
459		of about 5%.
460		Default: "no", unless "USE_FORT" is set to "yes"
461
462USE_FORT 	If "yes" turns on substitute wrappers for commonly used
463		functions that do not do bounds checking regularly, but
464		they could in some cases by using the gcc
465		__builtin_object_size() function to determine the buffer
466		size where it is known and detect buffer overflows.
467		These substitute functions are in /usr/include/ssp.
468		Default: depends on the part of the source tree
469
470USE_YP		If "no", disables building YP (NIS) support into
471		various system utilities/libraries that support it.
472		If ${MKYP} is "no", USE_YP will also be forced to "no".
473
474USE_PIGZGZIP	If "no", use the host "gzip" program to compress things.
475		Otherwise, build tools/pigz, set TOOL_GZIP=${TOOL_PIGZ},
476		and use nbpigz to compress things.
477		Default: "no".
478
479X11FLAVOUR	Set to "Xorg" or "XFree86", depending on whether to build
480		XFree86 or modular Xorg.  Only matters if MKX11!=no.
481		Default: "Xorg" on amd64, i386, macppc, shark and sparc64,
482		"XFree86" on everything else.
483
484COPTS.lib<lib>
485OBJCOPTS.lib<lib>
486LDADD.lib<lib>
487CPPFLAGS.lib<lib>
488CXXFLAGS.lib<lib>
489COPTS.<prog>
490OBJCCOPTS.<prog>
491LDADD.<prog>
492CPPFLAGS.<prog>
493CXXFLAGS.<prog>	These provide a way to specify additions to the associated
494		variables in a way that applies only to a particular library
495		or program.  <lib> corresponds to the LIB variable set in
496		the library's makefile.  <prog> corresponds to either PROG
497		or PROG_CXX (if set).  For example, if COPTS.libcrypto is
498		set to "-g", "-g" will be added to COPTS only when compiling
499		the crypto library.
500
501The active compiler is selected using the following variables:
502AVAILABLE_COMPILER
503		List of available compiler suites.  Processed in order
504		for selecting the active compiler for each frontend.
505HAVE_PCC	If defined, PCC is present and enabled.
506HAVE_LLVM	If defined, LLVM/Clang is present and enabled.
507UNSUPPORTED_COMPILER.xxx
508		If defined, the support for compiler "xxx" is disabled.
509
510For the frontends (CC, CPP, CXX, FC and OBJC) the following variables exist:
511ACTIVE_CC	Active compile suite for the CC frontend.
512SUPPORTED_CC	Compile suite with support for the CC frontend.
513TOOL_CC.xxx	Path to the CC frontend for compiler "xxx"
514
515=-=-=-=-=   sys.mk   =-=-=-=-=
516
517The include file <sys.mk> has the default rules for all makes, in the BSD
518environment or otherwise.  You probably don't want to touch this file.
519
520=-=-=-=-=   bsd.own.mk   =-=-=-=-=
521
522The include file <bsd.own.mk> contains source tree configuration parameters,
523such as the owners, groups, etc. for both manual pages and binaries, and
524a few global "feature configuration" parameters.
525
526It has no targets.
527
528To get system-specific configuration parameters, <bsd.own.mk> will try to
529include the file specified by the "MAKECONF" variable.  If MAKECONF is not
530set, or no such file exists, the system make configuration file, /etc/mk.conf
531is included.  These files may define any of the variables described below.
532
533<bsd.own.mk> sets the following variables, if they are not already defined
534(defaults are in brackets):
535
536NETBSDSRCDIR	Top of the NetBSD source tree.
537		If _SRC_TOP_ != "", that will be used as the default,
538		otherwise BSDSRCDIR will be used as the default.
539		Various makefiles within the NetBSD source tree will
540		use this to reference the top level of the source tree.
541
542_SRC_TOP_	Top of the system source tree, as determined by <bsd.own.mk>
543		based on the presence of tools/ and build.sh.  This variable
544		is "internal" to <bsd.own.mk>, although its value is only
545		determined once and then propagated to all sub-makes.
546
547_NETBSD_VERSION_DEPENDS
548		A list of files which contain information about
549		the version of the NetBSD being built.  This is
550		defined only if the current directory appears
551		to be inside a NetBSD source tree.  The list of
552		files includes ${NETBSDSRCDIR}/sys/sys/param.h
553		(which contains the kernel version number),
554		${NETBSDSRCDIR}/sys/conf/newvers.sh and
555		${NETBSDSRCDIR}/sys/conf/osrelease.sh (which
556		interpret the information in sys/sys/param.h), and
557		${_SRC_TOP_OBJ_}/params (which is an optional file,
558		created by "make build" in ${_SRC_TOP_}/Makefile,
559		containing all the variables that may influence the
560		build).
561
562		Targets that depend on the NetBSD version, or on
563		variables defined at build time, can declare a
564		dependency on ${_NETBSD_VERSION_DEPENDS}, like this:
565
566			version.c: ${_NETBSD_VERSION_DEPENDS}
567				commands to create version.c
568
569BSDSRCDIR	The real path to the system sources, so that 'make obj'
570		will work correctly.  [/usr/src]
571
572BSDOBJDIR	The real path to the system 'obj' tree, so that 'make obj'
573		will work correctly.  [/usr/obj]
574
575BINGRP		Binary group.  [wheel]
576
577BINOWN		Binary owner.  [root]
578
579BINMODE		Binary mode.  [555]
580
581NONBINMODE	Mode for non-executable files.  [444]
582
583MANDIR		Base path for manual installation.  [/usr/share/man/cat]
584
585MANGRP		Manual group.  [wheel]
586
587MANOWN		Manual owner.  [root]
588
589MANMODE		Manual mode.  [${NONBINMODE}]
590
591MANINSTALL	Manual installation type.  Space separated list:
592			catinstall, htmlinstall, maninstall
593		Default value derived from MKCATPAGES and MKHTML.
594
595LDSTATIC	Control program linking; if set blank, link everything
596		dynamically.  If set to "-static", link everything statically.
597		If not set, programs link according to their makefile.
598
599LIBDIR		Base path for library installation.  [/usr/lib]
600
601LINTLIBDIR	Base path for lint(1) library installation.  [/usr/libdata/lint]
602
603LIBGRP		Library group.  [${BINGRP}]
604
605LIBOWN		Library owner.  [${BINOWN}]
606
607LIBMODE		Library mode.  [${NONBINMODE}]
608
609DOCDIR		Base path for system documentation (e.g. PSD, USD, etc.)
610	        installation.  [/usr/share/doc]
611
612HTMLDOCDIR	Base path for html system documentation installation.
613		[/usr/share/doc/html]
614
615DOCGRP		Documentation group.  [wheel]
616
617DOCOWN		Documentation owner.  [root]
618
619DOCMODE		Documentation mode.  [${NONBINMODE}]
620
621NLSDIR		Base path for Native Language Support files installation.
622		[/usr/share/nls]
623
624NLSGRP		Native Language Support files group.  [wheel]
625
626NLSOWN		Native Language Support files owner.  [root]
627
628NLSMODE		Native Language Support files mode.  [${NONBINMODE}]
629
630X11SRCDIR	The path to the xsrc tree.  [${NETBSDSRCDIR}/../xsrc,
631		if that exists; otherwise /usr/xsrc]
632
633X11SRCDIR.xc	The path to the (old) X11 xc src tree.  [${X11SRCDIR}/xfree/xc]
634
635X11SRCDIR.local	The path to the local X11 src tree.  [${X11SRCDIR}/local]
636
637X11SRCDIR.lib<package>
638X11SRCDIR.<package>
639		The path to the xorg src tree for the specificed package>.
640		[${X11SRCDIR}/external/mit/xorg/<package>/dist]
641
642X11ROOTDIR	Root directory of the X11 installation.  [/usr/X11R6 or
643		[/usr/X11R7]
644
645X11BINDIR	X11 bin directory.  [${X11ROOTDIR}/bin]
646
647X11FONTDIR	X11 font directory.  [${X11ROOTDIR}/lib/X11/fonts]
648
649X11INCDIR	X11 include directory.  [${X11ROOTDIR}/include]
650
651X11LIBDIR	X11 lib/x11 (config) directory.  [${X11ROOTDIR}/lib/X11]
652
653X11MANDIR	X11 manual directory.  [${X11ROOTDIR}/man]
654
655X11USRLIBDIR	X11 library directory.  [${X11ROOTDIR}/lib]
656
657STRIPFLAG	The flag passed to the install program to cause the binary
658		to be stripped.  This is to be used when building your
659		own install script so that the entire system can be made
660		stripped/not-stripped using a single knob.  []
661
662COPY		The flag passed to the install program to cause the binary
663		to be copied rather than moved.  This is to be used when
664		building our own install script so that the entire system
665		can either be installed with copies, or with moves using
666		a single knob.  [-c]
667
668MAKEDIRTARGETENV
669		Environment variables passed to the child make process
670		invoked by MAKEDIRTARGET.
671
672MAKEDIRTARGET dir target [params]
673		Runs "cd $${dir} && ${MAKE} [params] $${target}",
674		displaying a "pretty" message whilst doing so.
675
676RELEASEMACHINEDIR
677		Subdirectory used below RELEASEDIR when building
678		a release.  [${MACHINE}]
679
680RELEASEMACHINE	Subdirectory or path component used for the following
681		paths:
682			distrib/${RELEASEMACHINE}
683			distrib/notes/${RELEASEMACHINE}
684			etc/etc.${RELEASEMACHINE}
685		Used when building a release.  [${MACHINE}]
686
687Additionally, the following variables may be set by <bsd.own.mk> or in a
688make configuration file to modify the behavior of the system build
689process (default values are in brackets along with comments, if set by
690<bsd.own.mk>):
691
692USETOOLS	Indicates whether the tools specified by ${TOOLDIR} should
693		be used as part of a build in progress.
694		Supported values:
695
696		yes	Use the tools from TOOLDIR.
697			Must be set to this if cross-compiling.
698
699		no	Do not use the tools from TOOLDIR, but refuse to
700			build native compilation tool components that are
701			version-specific for that tool.
702
703		never	Do not use the tools from TOOLDIR, even when
704			building native tool components.  This is similar to
705			the traditional NetBSD build method, but does not
706			verify that the compilation tools in use are
707			up-to-date enough in order to build the tree
708			successfully.  This may cause build or runtime
709			problems when building the whole NetBSD source tree.
710
711		Default: "yes" if building all or part of a whole NetBSD
712		source tree (detected automatically); "no" otherwise
713		(to preserve traditional semantics of the <bsd.*.mk>
714		make(1) include files).
715
716OBJECT_FMT	Object file format.  [set to "ELF" on architectures that
717		use ELF -- currently all architectures].
718
719TOOLCHAIN_MISSING
720		If not "no", this indicates that the platform being built
721		does not have a working in-tree toolchain.  If the
722		${MACHINE_ARCH} in question falls into this category,
723		TOOLCHAIN_MISSING is conditionally assigned the value "yes".
724		Otherwise, the variable is unconditionally assigned the
725		value "no".
726		If not "no", ${MKBINUTILS}, ${MKGCC}, and ${MKGDB} are
727		unconditionally assigned the value "no".
728
729EXTERNAL_TOOLCHAIN
730		This variable is not directly set by <bsd.own.mk>, but
731		including <bsd.own.mk> is the canonical way to gain
732		access to this variable.  The variable should be defined
733		either in the user's environment or in the user's mk.conf
734		file.  If defined, this variable indicates the root of
735		an external toolchain which will be used to build the
736		tree.  For example, if a platform is a ${TOOLCHAIN_MISSING}
737		platform, EXTERNAL_TOOLCHAIN can be used to re-enable the
738		cross-compile framework.
739
740		If EXTERNAL_TOOLCHAIN is defined, ${MKGCC} is unconditionally
741		assigned the value "no", since the external version of the
742		compiler may not be able to build the library components of
743		the in-tree compiler.
744
745		NOTE: This variable is not yet used in as many places as
746		it should be.  Expect the exact semantics of this variable
747		to change in the short term as parts of the cross-compile
748		framework continue to be cleaned up.
749
750The following variables are defined to commands to perform the
751appropriate operation, with the default in [brackets].  Note that
752the defaults change if USETOOLS == "yes":
753
754TOOL_AMIGAAOUT2BB	aout to Amiga bootblock converter.  [amiga-aout2bb]
755
756TOOL_AMIGAELF2BB	ELF to Amiga bootblock converter.  [amiga-elf2bb]
757
758TOOL_AMIGATXLT		Amige assembly language format translator.  [amiga-txlt]
759
760TOOL_ASN1_COMPILE	ASN1 compiler.  [asn1_compile]
761
762TOOL_AWK		Pattern-directed scanning/processing language.  [awk]
763
764TOOL_CAP_MKDB		Create capability database.  [cap_mkdb]
765
766TOOL_CAT		Concatenate and print files.  [cat]
767
768TOOL_CKSUM		Display file checksums.  [cksum]
769
770TOOL_COMPILE_ET		Error table compiler.  [compile_et]
771
772TOOL_CONFIG		Build kernel compilation directories.  [config]
773
774TOOL_CRUNCHGEN		Generate crunched binary build environment.  [crunchgen]
775
776TOOL_CTAGS		Create a tags file.  [ctags]
777
778TOOL_DB			Manipulate db(3) databases.  [db]
779
780TOOL_DISKLABEL		Read and write disk pack label.  [disklabel]
781
782TOOL_EQN		Format equations for groff.  [eqn]
783
784TOOL_FDISK		MS-DOS partition maintenance program.  [fdisk]
785
786TOOL_FGEN		IEEE 1275 Open Firmware FCode Tokenizer.  [fgen]
787
788TOOL_GENASSYM		Generate constants for assembly files.  [genassym]
789
790TOOL_GENCAT		Generate NLS message catalogs.  [gencat]
791
792TOOL_GMAKE		GNU make utility.  [gmake]
793
794TOOL_GREP		Print lines matching a pattern.  [grep]
795
796TOOL_GROFF		Front end for groff document formatting system.  [groff]
797
798TOOL_GZIP		Compression/decompression tool.  [gzip]
799
800TOOL_HEXDUMP		Ascii, decimal, hexadecimal, octal dump.  [hexdump]
801
802TOOL_HP300MKBOOT	Make bootable image for hp300.  [hp300-mkboot]
803
804TOOL_HPPAMKBOOT		Make bootable image for hppa.  [hppa-mkboot]
805
806TOOL_INDXBIB		Make bibliographic database's inverted index.  [indxbib]
807
808TOOL_INSTALLBOOT	Install disk bootstrap software.  [installboot]
809
810TOOL_INSTALL_INFO	Update info/dir entries.  [install-info]
811
812TOOL_JOIN		Relational database operator.  [join]
813
814TOOL_M4			M4 macro language processor.  [m4]
815
816TOOL_MACPPCFIXCOFF	Fix up xcoff headers for macppc.  [macppc-fixcoff]
817
818TOOL_MAKEFS		Create file system image from directory tree.  [makefs]
819
820TOOL_MAKEINFO		Translate Texinfo documents.  [makeinfo]
821
822TOOL_MAKEWHATIS		Create a whatis.db database.  [makewhatis]
823
824TOOL_MDSETIMAGE		Set kernel RAM disk image.  [mdsetimage]
825
826TOOL_MENUC		Menu compiler.  [menuc]
827
828TOOL_MIPSELF2ECOFF	Convert ELF-format executable to ECOFF for mips.
829			[mips-elf2ecoff]
830
831TOOL_MKCSMAPPER		Make charset mapping table.  [mkcsmapper]
832
833TOOL_MKESDB		Make encoding scheme database.  [mkesdb]
834
835TOOL_MKLOCALE		Make LC_CTYPE locale files.  [mklocale]
836
837TOOL_MKMAGIC		Create database for file(1).  [file]
838
839TOOL_MKNOD		Make device special file.  [mknod]
840
841TOOL_MKTEMP		Make (unique) temporary file name.  [mktemp]
842
843TOOL_MSGC		Simple message list compiler.  [msgc]
844
845TOOL_MTREE		Map a directory hierarchy.  [mtree]
846
847TOOL_NCDCS		Turn ELF kernel into a NCD firmware image. [ncdcs]
848
849TOOL_PAX		Manipulate file archives and copy directories.  [pax]
850
851TOOL_PIC		Compile pictures for groff.  [pic]
852
853TOOL_PIGZ		Parallel compressor.  [pigz]
854
855TOOL_POWERPCMKBOOTIMAGE	Make bootable image for powerpc.  [powerpc-mkbootimage]
856
857TOOL_PWD_MKDB		Generate the password databases.  [pwd_mkdb]
858
859TOOL_REFER		Preprocess bibliographic references for groff.  [refer]
860
861TOOL_ROFF_ASCII		Generate ASCII groff output.  [nroff]
862
863TOOL_ROFF_DVI		Generate DVI groff output.  [${TOOL_GROFF} -Tdvi]
864
865TOOL_ROFF_HTML		Generate HTML groff output.
866			[${TOOL_GROFF} -Tlatin1 -mdoc2html]
867
868TOOL_ROFF_PS		Generate PS groff output.  [${TOOL_GROFF} -Tps]
869
870TOOL_ROFF_RAW		Generate "raw" groff output.  [${TOOL_GROFF} -Z]
871
872TOOL_RPCGEN		Remote Procedure Call (RPC) protocol compiler.  [rpcgen]
873
874TOOL_SED		Stream editor.  [sed]
875
876TOOL_SOELIM		Eliminate .so's from groff input.  [soelim]
877
878TOOL_SPARKCRC		Generate a crc suitable for use in a sparkive file.
879			[sparkcrc]
880
881TOOL_STAT		Display file status.  [stat]
882
883TOOL_STRFILE		Create a random access file for storing strings.
884			[strfile]
885
886TOOL_SUNLABEL		Read or modify a SunOS disk label.  [sunlabel]
887
888TOOL_TBL		Format tables for groff.  [tbl]
889
890TOOL_UUDECODE		Uudecode a binary file.  [uudecode]
891
892TOOL_VGRIND		Grind nice listings of programs.  [vgrind -f]
893
894TOOL_ZIC		Time zone compiler.  [zic]
895
896For each possible value of MACHINE_CPU, MACHINES.${MACHINE_CPU} contain a
897list of what ports can be built for it.  This keeps those definitions in
898centralized place.
899
900<bsd.own.mk> is generally useful when building your own Makefiles so that
901they use the same default owners etc. as the rest of the tree.
902
903
904=-=-=-=-=   bsd.clean.mk   =-=-=-=-=
905
906The include file <bsd.clean.mk> defines the clean and cleandir
907targets.  It uses the following variables:
908
909CLEANFILES	Files to remove for both the clean and cleandir targets.
910
911CLEANDIRFILES	Files to remove for the cleandir target, but not for
912		the clean target.
913
914MKCLEANSRC	Controls whether or not the clean and cleandir targets
915		will delete files from both the object directory,
916		${.OBJDIR}, and the source directory, ${.CURDIR}.
917
918		If MKCLEANSRC is set to "no", then the file names in
919		CLEANFILES or CLEANDIRFILES are interpreted relative
920		to the object directory, ${.OBJDIR}.  This is the
921		traditional behaviour.
922
923		If MKCLEANSRC is set to "yes", then the file deletion
924		is performed relative to both the object directory,
925		${.OBJDIR}, and the source directory, ${.CURDIR}.  (This
926		has no effect if ${.OBJDIR} is the same as ${.CURDIR}.)
927		Deleting files from ${.CURDIR} is intended to remove
928		stray output files that had been left in the source
929		directory by an earlier build that did not use object
930		directories.
931
932		The default is MKCLEANSRC=yes.  If you always build with
933		separate object directories, and you are sure that there
934		are no stray files in the source directories, then you
935		may set MKCLEANSRC=no to save some time.
936
937MKCLEANVERIFY	Controls whether or not the clean and cleandir targets
938		will verify that files have been deleted.
939
940		If MKCLEANVERIFY is set to "no", then the files will
941		be deleted using a "rm -f" command, and its success or
942		failure will be ignored.
943
944		If MKCLEANVERIFY is set to "yes", then the success of
945		the "rm -f" command will be verified using an "ls"
946		command.
947
948		The default is MKCLEANVERIFY=yes.  If you are sure that
949		there will be no problems caused by file permissions,
950		read-only file systems, or the like, then you may set
951		MKCLEANVERIFY=no to save some time.
952
953To use the clean and cleandir targets defined in <bsd.clean.mk>, other
954Makefiles or bsd.*.mk files should append file names to the CLEANFILES
955or CLEANDIRFILES variables.  For example:
956
957	    CLEANFILES+= a.out
958	    CLEANDIRFILES+= .depend
959
960	    .include <bsd.clean.mk>
961
962The files listed in CLEANFILES and CLEANDIRFILES must not be
963directories, because the potential risk from running "rm -rf" commands
964in bsd.clean.mk is considered too great.  If you want to recursively
965delete a directory as part of "make clean" or "make cleandir" then you
966need to provide your own target.
967
968=-=-=-=-=   bsd.dep.mk   =-=-=-=-=
969
970The include file <bsd.dep.mk> contains the default targets for building
971.depend files.  It creates .d files from entries in SRCS and DPSRCS
972that are C, C++, or Objective C source files, and builds .depend from the
973.d files.  All other files in SRCS and all of DPSRCS will be used as
974dependencies for the .d files.  In order for this to function correctly,
975it should be .included after all other .mk files and directives that may
976modify SRCS or DPSRCS.  It uses the following variables:
977
978SRCS		List of source files to build the program.
979
980DPSRCS		List of source files which are needed for generating
981		dependencies, but are not needed in ${SRCS}.
982
983
984=-=-=-=-=   bsd.files.mk   =-=-=-=-=
985
986The include file <bsd.files.mk> handles the FILES variables and is included
987from <bsd.lib.mk> and <bsd.prog.mk>, and uses the following variables:
988
989FILES		The list of files to install.
990
991CONFIGFILES	Similar semantics to FILES, except that the files
992		are installed by the `configinstall' target,
993		not the `install' target.
994		The FILES* variables documented below also apply.
995
996FILESOWN	File owner.  [${BINOWN}]
997
998FILESGRP	File group.  [${BINGRP}]
999
1000FILESMODE	File mode.  [${NONBINMODE}]
1001
1002FILESDIR	The location to install the files.
1003
1004FILESNAME	Optional name to install each file as.
1005
1006FILESOWN_<fn>	File owner of the specific file <fn>.
1007
1008FILESGRP_<fn>	File group of the specific file <fn>.
1009
1010FILESMODE_<fn>	File mode of the specific file <fn>.
1011
1012FILESDIR_<fn>	The location to install the specific file <fn>.
1013
1014FILESNAME_<fn>	Optional name to install <fn> as.
1015
1016FILESBUILD	If this variable is defined, then its value will be
1017		used as the default for all FILESBUILD_<fn> variables.
1018		Otherwise, the default will be "no".
1019
1020FILESBUILD_<fn>	A value different from "no" will add the file to the list of
1021		targets to be built by `realall'.  Users of that variable
1022		should provide a target to build the file.
1023
1024
1025BUILDSYMLINKS	List of two word items:
1026			lnsrc lntgt
1027		For each lnsrc item, create a symlink named lntgt.
1028		The lntgt symlinks are removed by the cleandir target.
1029
1030UUDECODE_FILES	List of files which are stored as <file>.uue in the source
1031		tree. Each one will be decoded with ${TOOL_UUDECODE}.
1032		The source files have a `.uue' suffix, the generated files do
1033		not.
1034
1035UUDECODE_FILES_RENAME_<fn>
1036		Rename the output from the decode to the provided name.
1037
1038		*NOTE: These files are simply decoded, with no install or other
1039		       rule applying implicitly except being added to the clean
1040		       target.
1041
1042=-=-=-=-=   bsd.gcc.mk   =-=-=-=-=
1043
1044The include file <bsd.gcc.mk> computes various parameters related to GCC
1045support libraries.  It defines no targets.  <bsd.own.mk> MUST be included
1046before <bsd.gcc.mk>.
1047
1048The primary users of <bsd.gcc.mk> are <bsd.prog.mk> and <bsd.lib.mk>, each
1049of which need to know where to find certain GCC support libraries.
1050
1051The behavior of <bsd.gcc.mk> is influenced by the EXTERNAL_TOOLCHAIN variable,
1052which is generally set by the user.  If EXTERNAL_TOOLCHAIN it set, then
1053the compiler is asked where to find the support libraries, otherwise the
1054support libraries are found in ${DESTDIR}/usr/lib.
1055
1056<bsd.gcc.mk> sets the following variables:
1057
1058_GCC_CRTBEGIN	The full path name to crtbegin.o.
1059
1060_GCC_CRTBEGINS	The full path name to crtbeginS.o.
1061
1062_GCC_CRTEND	The full path name to crtend.o.
1063
1064_GCC_CRTENDS	The full path name to crtendS.o.
1065
1066_GCC_LIBGCCDIR	The directory where libgcc.a is located.
1067
1068
1069=-=-=-=-=   bsd.inc.mk   =-=-=-=-=
1070
1071The include file <bsd.inc.mk> defines the includes target and uses the
1072variables:
1073
1074INCS		The list of include files.
1075
1076INCSDIR		The location to install the include files.
1077
1078INCSNAME	Target name of the include file, if only one; same as
1079		FILESNAME, but for include files.
1080
1081INCSYMLINKS	Similar to SYMLINKS in <bsd.links.mk>, except that these
1082		are installed in the 'includes' target and not the
1083		(much later) 'install' target.
1084
1085INCSNAME_<file>	The name file <file> should be installed as, if not <file>,
1086		same as FILESNAME_<file>, but for include files.
1087
1088
1089=-=-=-=-=   bsd.info.mk   =-=-=-=-=
1090
1091The include file <bsd.info.mk> is used to generate and install GNU Info
1092documentation from respective Texinfo source files.  It defines three
1093implicit targets (.txi.info, .texi.info, and .texinfo.info), and uses the
1094following variables:
1095
1096TEXINFO		List of Texinfo source files.  Info documentation will
1097		consist of single files with the extension replaced by
1098		.info.
1099
1100INFOFLAGS	Flags to pass to makeinfo.  []
1101
1102
1103=-=-=-=-=   bsd.kernobj.mk   =-=-=-=-=
1104
1105The include file <bsd.kernobj.mk> defines variables related to the
1106location of kernel sources and object directories.
1107
1108KERNSRCDIR	Is the location of the top of the kernel src.
1109		[${_SRC_TOP_}/sys]
1110
1111KERNARCHDIR	Is the location of the machine dependent kernel sources.
1112		[arch/${MACHINE}]
1113
1114KERNCONFDIR	Is where the configuration files for kernels are found.
1115		[${KERNSRCDIR}/${KERNARCHDIR}/conf]
1116
1117KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
1118		instance will be compiled in ${KERNOBJDIR}/GENERIC.
1119		The default value is
1120		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
1121		if it exists or the target 'obj' is being made.
1122		Otherwise the default is
1123		${KERNSRCDIR}/${KERNARCHDIR}/compile.
1124
1125It is important that Makefiles (such as those under src/distrib) that
1126wish to find compiled kernels use <bsd.kernobj.mk> and ${KERNOBJDIR}
1127rather than make assumptions about the location of the compiled kernel.
1128
1129
1130=-=-=-=-=   bsd.kinc.mk   =-=-=-=-=
1131
1132The include file <bsd.kinc.mk> defines the many targets (includes,
1133subdirectories, etc.), and is used by kernel makefiles to handle
1134include file installation.  It is intended to be included alone, by
1135kernel Makefiles.  It uses similar variables to <bsd.inc.mk>.
1136Please see <bsd.kinc.mk> for more details, and keep the documentation
1137in that file up to date.
1138
1139=-=-=-=-=   bsd.syscall.mk =-=-=-=-=
1140
1141The include file <bsd.syscall.mk> contains the logic to create syscall
1142files for various emulations. It includes <bsd.kinc.mk> to handle the
1143rest of the targets.
1144
1145=-=-=-=-=   bsd.lib.mk   =-=-=-=-=
1146
1147The include file <bsd.lib.mk> has support for building libraries.  It has
1148the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
1149includes, install, lint, and tags.  Additionally, it has a checkver target
1150which checks for installed shared object libraries whose version is greater
1151that the version of the source. It has a limited number of suffixes,
1152consistent with the current needs of the BSD tree.  <bsd.lib.mk> includes
1153<bsd.shlib.mk> to get shared library parameters.
1154
1155It sets/uses the following variables:
1156
1157LIB		The name of the library to build.
1158
1159LIBDIR		Target directory for libraries.
1160
1161MKARZERO	Normally, ar(1) sets the timestamps, uid, gid and
1162		permissions in files inside its archives to those of
1163		the file it was fed. This leads to non-reproduceable
1164		builds. If MKARZERO is set to "yes" (default is the
1165		same as MKREPRO, or "no" if MKREPRO is not defined),
1166		then the "D" flag is passed to ar, causing the
1167		timestamp, uid and gid to be zeroed and the file
1168		permissions to be set to 644. This allows .a files
1169		from different builds to be bit identical.
1170
1171SHLIBINSTALLDIR	Target directory for shared libraries if ${USE_SHLIBDIR}
1172		is not "no".
1173
1174SHLIB_MAJOR
1175SHLIB_MINOR
1176SHLIB_TEENY	Major, minor, and teeny version numbers of shared library
1177
1178USE_SHLIBDIR	If not "no", use ${SHLIBINSTALLDIR} instead of ${LIBDIR}
1179		as the path to install shared libraries to.
1180		USE_SHLIBDIR must be defined before <bsd.own.mk> is included.
1181		Default: no
1182
1183LIBISMODULE	If not "no", install as ${LIB}.so (without the "lib" prefix),
1184		and act as "MKDEBUGLIB=no MKLINT=no MKPICINSTALL=no
1185		MKPROFILE=no MKSTATICLIB=no".
1186		Default: no
1187
1188LIBISPRIVATE	If not "no", act as "MKDEBUGLIB=no MKLINT=no MKPIC=no
1189		MKPROFILE=no", and don't install the (.a) library.
1190		This is useful for "build only" helper libraries.
1191		Default: no
1192
1193LIBISCXX	If not "no", Use ${CXX} instead of ${CC} to link
1194		shared libraries.
1195		This is useful for C++ libraries.
1196		Default: no
1197
1198LINTLIBDIR	Target directory for lint libraries.
1199
1200LIBGRP		Library group.
1201
1202LIBOWN		Library owner.
1203
1204LIBMODE		Library mode.
1205
1206LDADD		Additional loader objects.
1207
1208MAN		The manual pages to be installed (use a .1 - .9 suffix).
1209
1210NOCHECKVER_<library>
1211NOCHECKVER	If set, disables checking for installed shared object
1212		libraries with versions greater than the source.  A
1213		particular library name, without the "lib" prefix, may
1214		be appended to the variable name to disable the check for
1215		only that library.
1216
1217SRCS		List of source files to build the library.  Suffix types
1218		.s, .c, and .f are supported.  Note, .s files are preferred
1219		to .c files of the same name.  (This is not the default for
1220		versions of make.)
1221
1222LIBDPLIBS	A list of the tuples:
1223			libname  path-to-srcdir-of-libname
1224
1225		For each tuple;
1226		     *	LIBDO.libname contains the .OBJDIR of the library
1227			`libname', and if it is not set it is determined
1228			from the srcdir and added to MAKEOVERRIDES (the
1229			latter is to allow for build time optimization).
1230		     *	LDADD gets  -L${LIBDO.libname} -llibname    added.
1231		     *	DPADD gets  ${LIBDO.libname}/liblibname.so  or
1232				    ${LIBDO.libname}/liblibname.a   added.
1233
1234		The special value "_external" for LIBDO.lib makes the
1235		build system to assume the library comes from outside
1236		of the NetBSD source tree and only causes -llibname
1237		to be added to LDADD.
1238
1239		This variable may be used for individual libraries, as
1240		well as in parent directories to cache common libraries
1241		as a build-time optimization.
1242
1243The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
1244if it exists, as well as the include file <bsd.man.mk>.
1245
1246It has rules for building profiled objects; profiled libraries are
1247built by default.
1248
1249Libraries are ranlib'd when made.
1250
1251
1252=-=-=-=-=   bsd.links.mk   =-=-=-=-=
1253
1254The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
1255and is included from from <bsd.lib.mk> and <bsd.prog.mk>.
1256
1257LINKSOWN, LINKSGRP, and LINKSMODE, are relevant only if a metadata log
1258is used. The defaults may be modified by other bsd.*.mk files which
1259include bsd.links.mk.  In the future, these variables may be replaced
1260by a method for explicitly recording hard links in a metadata log.
1261
1262LINKS		The list of hard links, consisting of pairs of paths:
1263			source-file target-file
1264		${DESTDIR} is prepended to both paths before linking.
1265		For example, to link /bin/test and /bin/[, use:
1266			LINKS=/bin/test /bin/[
1267
1268CONFIGLINKS	Similar semantics to LINKS, except that the links
1269		are installed by the `configinstall' target,
1270		not the `install' target.
1271
1272SYMLINKS	The list of symbolic links, consisting of pairs of paths:
1273			source-file target-file
1274		${DESTDIR} is only prepended to target-file before linking.
1275		For example, to symlink /usr/bin/tar to /bin/tar resulting
1276		in ${DESTDIR}/usr/bin/tar -> /bin/tar:
1277			SYMLINKS=/bin/tar /usr/bin/tar
1278
1279CONFIGSYMLINKS	Similar semantics to SYMLINKS, except that the symbolic links
1280		are installed by the `configinstall' target,
1281		not the `install' target.
1282
1283LINKSOWN	Link owner.  [${BINOWN}]
1284
1285LINKSGRP	Link group.  [${BINGRP}]
1286
1287LINKSMODE	Link mode.  [${NONBINMODE}]
1288
1289LINKSOWN_<fn>	Link owner of the specific file <fn>.
1290
1291LINKSGRP_<fn>	Link group of the specific file <fn>.
1292
1293LINKSMODE_<fn>	Link mode of the specific file <fn>.
1294
1295
1296=-=-=-=-=   bsd.man.mk   =-=-=-=-=
1297
1298The include file <bsd.man.mk> handles installing manual pages and their
1299links.
1300
1301It has a three targets:
1302
1303	catinstall:
1304		Install the preformatted manual pages and their links.
1305	htmlinstall:
1306		Install the HTML manual pages and their links.
1307	maninstall:
1308		Install the manual page sources and their links.
1309
1310It sets/uses the following variables:
1311
1312MANDIR		Base path for manual installation.
1313
1314MANGRP		Manual group.
1315
1316MANOWN		Manual owner.
1317
1318MANMODE		Manual mode.
1319
1320MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
1321		or "/tahoe" for machine specific manual pages.
1322
1323MAN		The manual pages to be installed (use a .1 - .9 suffix).
1324
1325MLINKS		List of manual page links (using a .1 - .9 suffix).  The
1326		linked-to file must come first, the linked file second,
1327		and there may be multiple pairs.
1328
1329The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
1330it exists.
1331
1332
1333=-=-=-=-=   bsd.obj.mk   =-=-=-=-=
1334
1335The include file <bsd.obj.mk> defines targets related to the creation
1336and use of separated object and source directories.
1337
1338If an environment variable named MAKEOBJDIRPREFIX is set, make(1) uses
1339${MAKEOBJDIRPREFIX}${.CURDIR} as the name of the object directory if
1340it exists.  Otherwise make(1) looks for the existence of a
1341subdirectory (or a symlink to a directory) of the source directory
1342into which built targets should be placed.  If an environment variable
1343named MAKEOBJDIR is set, make(1) uses its value as the name of the
1344object directory; failing that, make first looks for a subdirectory
1345named "obj.${MACHINE}", and if that doesn't exist, it looks for "obj".
1346
1347Object directories are not created automatically by make(1) if they
1348don't exist; you need to run a separate "make obj".  (This will happen
1349during a top-level build if "MKOBJDIRS" is set to a value other than
1350"no").  When the source directory is a subdirectory of ${BSDSRCDIR} --
1351and this is determined by a simple string prefix comparison -- object
1352directories are created in a separate object directory tree, and a
1353symlink to the object directory in that tree is created in the source
1354directory; otherwise, "make obj" assumes that you're not in the main
1355source tree and that it's not safe to use a separate object tree.
1356
1357Several variables used by <bsd.obj.mk> control exactly what
1358directories and links get created during a "make obj":
1359
1360MAKEOBJDIR	If set, this is the component name of the object
1361		directory.
1362
1363OBJMACHINE	If this is set but MAKEOBJDIR is not set, creates
1364		object directories or links named "obj.${MACHINE}";
1365		otherwise, just creates ones named "obj".
1366
1367USR_OBJMACHINE  If set, and the current directory is a subdirectory of
1368		${BSDSRCDIR}, create object directory in the
1369		corresponding subdirectory of ${BSDOBJDIR}.${MACHINE};
1370		otherwise, create it in the corresponding subdirectory
1371		of ${BSDOBJDIR}
1372
1373BUILDID		If set, the contents of this variable are appended
1374		to the object directory name.  If OBJMACHINE is also
1375		set, ".${BUILDID}" is added after ".${MACHINE}".
1376
1377
1378=-=-=-=-=   bsd.prog.mk   =-=-=-=-=
1379
1380The include file <bsd.prog.mk> handles building programs from one or
1381more source files, along with their manual pages.  It has a limited number
1382of suffixes, consistent with the current needs of the BSD tree.
1383<bsd.prog.mk> includes <bsd.shlib.mk> to get shared library parameters.
1384
1385It has eight targets:
1386
1387	all:
1388		build the program and its manual page.  This also
1389		creates a GDB initialization file (.gdbinit) in
1390		the objdir.  The .gdbinit file sets the shared library
1391		prefix to ${DESTDIR} to facilitate cross-debugging.
1392	clean:
1393		remove the program, any object files and the files a.out,
1394		Errs, errs, mklog, and ${PROG}.core.
1395	cleandir:
1396		remove all of the files removed by the target clean, as
1397		well as .depend, tags, and any manual pages.
1398		`distclean' is a synonym for `cleandir'.
1399	depend:
1400		make the dependencies for the source files, and store
1401		them in the file .depend.
1402	includes:
1403		install any header files.
1404	install:
1405		install the program and its manual pages; if the Makefile
1406		does not itself define the target install, the targets
1407		beforeinstall and afterinstall may also be used to cause
1408		actions immediately before and after the install target
1409		is executed.
1410	lint:
1411		run lint on the source files
1412	tags:
1413		create a tags file for the source files.
1414
1415It sets/uses the following variables:
1416
1417BINGRP		Binary group.
1418
1419BINOWN		Binary owner.
1420
1421BINMODE		Binary mode.
1422
1423CLEANDIRFILES	Additional files to remove for the cleandir target.
1424
1425CLEANFILES	Additional files to remove for the clean and cleandir targets.
1426
1427COPTS		Additional flags to the compiler when creating C objects.
1428
1429COPTS.<fn>	Additional flags to the compiler when creating the
1430		C objects for <fn>.
1431		For <fn>.[ly], "<fn>.c" must be used.
1432
1433CPUFLAGS	Additional flags to the compiler/assembler to select
1434		CPU instruction set options, CPU tuning options, etc.
1435
1436CPUFLAGS.<fn>	Additional flags to the compiler/assembler for <fn>.
1437		For <fn>.[ly], "<fn>.c" must be used.
1438
1439CPPFLAGS	Additional flags to the C pre-processor.
1440
1441CPPFLAGS.<fn>	Additional flags to the C pre-processor for <fn>.
1442		For <fn>.[ly], "<fn>.c" must be used.
1443
1444GDBINIT		List of GDB initialization files to add to "source"
1445		directives in the .gdbinit file that is created in the
1446		objdir.
1447
1448LDADD		Additional loader objects.  Usually used for libraries.
1449		For example, to load with the compatibility and utility
1450		libraries, use:
1451
1452			LDADD+=-lutil -lcompat
1453
1454LDFLAGS		Additional linker flags (passed to ${CC} during link).
1455
1456LINKS		See <bsd.links.mk>
1457
1458OBJCOPTS	Additional flags to the compiler when creating ObjC objects.
1459
1460OBJCOPTS.<fn>	Additional flags to the compiler when creating the
1461		ObjC objects for <fn>.
1462		For <fn>.[ly], "<fn>.c" must be used.
1463
1464SYMLINKS	See <bsd.links.mk>
1465
1466MAN		Manual pages (should end in .1 - .9).  If no MAN variable is
1467		defined, "MAN=${PROG}.1" is assumed.
1468
1469PAXCTL_FLAGS	If defined, run paxctl(1) on the program binary after link
1470		time, with the value of this variable as args to paxctl(1).
1471
1472PAXCTL_FLAGS.${PROG} Custom override for PAXCTL_FLAGS.
1473
1474PROG		The name of the program to build.  If not supplied, nothing
1475		is built.
1476
1477PROG_CXX	If defined, the name of the program to build.  Also
1478		causes <bsd.prog.mk> to link the program with the C++
1479		compiler rather than the C compiler.  PROG_CXX overrides
1480		the value of PROG if PROG is also set.
1481
1482PROGNAME	The name that the above program will be installed as, if
1483		different from ${PROG}.
1484
1485SRCS		List of source files to build the program.  If SRCS is not
1486		defined, it's assumed to be ${PROG}.c.
1487
1488DPSRCS		List of source files which are needed for generating
1489		dependencies, but are not needed in ${SRCS}.
1490
1491DPADD		Additional dependencies for the program.  Usually used for
1492		libraries.  For example, to depend on the compatibility and
1493		utility libraries use:
1494
1495			DPADD+=${LIBCOMPAT} ${LIBUTIL}
1496
1497		The following system libraries are predefined for DPADD:
1498
1499		LIBARCHIVE?=	${DESTDIR}/usr/lib/libarchive.a
1500		LIBASN1?=	${DESTDIR}/usr/lib/libasn1.a
1501		LIBATF_C?=	${DESTDIR}/usr/lib/libatf-c.a
1502		LIBATF_CXX?=	${DESTDIR}/usr/lib/libatf-c++.a
1503		LIBBIND9?=	${DESTDIR}/usr/lib/libbind9.a
1504		LIBBLUETOOTH?=	${DESTDIR}/usr/lib/libbluetooth.a
1505		LIBBSDMALLOC?=	${DESTDIR}/usr/lib/libbsdmalloc.a
1506		LIBBZ2?=	${DESTDIR}/usr/lib/libbz2.a
1507		LIBC?=		${DESTDIR}/usr/lib/libc.a
1508		LIBCOMPAT?=	${DESTDIR}/usr/lib/libcompat.a
1509		LIBCOM_ERR?=	${DESTDIR}/usr/lib/libcom_err.a
1510		LIBCRT0?=	${DESTDIR}/usr/lib/crt0.o
1511		LIBCRTI?=	${DESTDIR}/usr/lib/crti.o
1512		LIBCRYPT?=	${DESTDIR}/usr/lib/libcrypt.a
1513		LIBCRYPTO?=	${DESTDIR}/usr/lib/libcrypto.a
1514		LIBCRYPTO_IDEA?=${DESTDIR}/usr/lib/libcrypto_idea.a
1515		LIBCRYPTO_MDC2?=${DESTDIR}/usr/lib/libcrypto_mdc2.a
1516		LIBCRYPTO_RC5?=	${DESTDIR}/usr/lib/libcrypto_rc5.a
1517		LIBCURSES?=	${DESTDIR}/usr/lib/libcurses.a
1518		LIBC_PIC?=	${DESTDIR}/usr/lib/libc_pic.a
1519		LIBDBM?=	${DESTDIR}/usr/lib/libdbm.a
1520		LIBDES?=	${DESTDIR}/usr/lib/libdes.a
1521		LIBDNS?=	${DESTDIR}/usr/lib/libdns.a
1522		LIBEDIT?=	${DESTDIR}/usr/lib/libedit.a
1523		LIBEVENT?=	${DESTDIR}/usr/lib/libevent.a
1524		LIBEVENT_OPENSSL?=	${DESTDIR}/usr/lib/libevent_openssl.a
1525		LIBEVENT_PTHREADS?=	${DESTDIR}/usr/lib/libevent_pthreads.a
1526		LIBEXPAT?=	${DESTDIR}/usr/lib/libexpat.a
1527		LIBFETCH?=	${DESTDIR}/usr/lib/libfetch.a
1528		LIBFORM?=	${DESTDIR}/usr/lib/libform.a
1529		LIBFL?=		${DESTDIR}/usr/lib/libfl.a
1530		LIBG2C?=	${DESTDIR}/usr/lib/libg2c.a
1531		LIBGCC?=	${DESTDIR}/usr/lib/libgcc.a
1532		LIBGNUMALLOC?=	${DESTDIR}/usr/lib/libgnumalloc.a
1533		LIBGSSAPI?=	${DESTDIR}/usr/lib/libgssapi.a
1534		LIBHDB?=	${DESTDIR}/usr/lib/libhdb.a
1535		LIBHEIMBASE?=	${DESTDIR}/usr/lib/libheimbase.a
1536		LIBHEIMNTLM?=	${DESTDIR}/usr/lib/libheimntlm.a
1537		LIBHX500?=	${DESTDIR}/usr/lib/libhx500.a
1538		LIBINTL?=	${DESTDIR}/usr/lib/libintl.a
1539		LIBIPSEC?=	${DESTDIR}/usr/lib/libipsec.a
1540		LIBISC?=	${DESTDIR}/usr/lib/libisc.a
1541		LIBISCCC?=	${DESTDIR}/usr/lib/libisccc.a
1542		LIBISCFG?=	${DESTDIR}/usr/lib/libiscfg.a
1543		LIBKADM5CLNT?=	${DESTDIR}/usr/lib/libkadm5clnt.a
1544		LIBKADM5SRV?=	${DESTDIR}/usr/lib/libkadm5srv.a
1545		LIBKAFS?=	${DESTDIR}/usr/lib/libkafs.a
1546		LIBKRB5?=	${DESTDIR}/usr/lib/libkrb5.a
1547		LIBKVM?=	${DESTDIR}/usr/lib/libkvm.a
1548		LIBL?=		${DESTDIR}/usr/lib/libl.a
1549		LIBLBER?=	${DESTDIR}/usr/lib/liblber.a
1550		LIBLDAP?=	${DESTDIR}/usr/lib/libldap.a
1551		LIBLDAP_R?=	${DESTDIR}/usr/lib/libldap_r.a
1552		LIBLUA?=	${DESTDIR}/usr/lib/liblua.a
1553		LIBLUTOK?=	${DESTDIR}/usr/lib/liblutok.a
1554		LIBLWRES?=	${DESTDIR}/usr/lib/liblwres.a
1555		LIBM?=		${DESTDIR}/usr/lib/libm.a
1556		LIBMAGIC?=	${DESTDIR}/usr/lib/libmagic.a
1557		LIBMENU?=	${DESTDIR}/usr/lib/libmenu.a
1558		LIBOBJC?=	${DESTDIR}/usr/lib/libobjc.a
1559		LIBOSSAUDIO?=	${DESTDIR}/usr/lib/libossaudio.a
1560		LIBPAM?=	${DESTDIR}/usr/lib/libpam.a
1561		LIBPCAP?=	${DESTDIR}/usr/lib/libpcap.a
1562		LIBPCI?=	${DESTDIR}/usr/lib/libpci.a
1563		LIBPMC?=	${DESTDIR}/usr/lib/libpmc.a
1564		LIBPOSIX?=	${DESTDIR}/usr/lib/libposix.a
1565		LIBPTHREAD?=	${DESTDIR}/usr/lib/libpthread.a
1566		LIBPTHREAD_DBG?=${DESTDIR}/usr/lib/libpthread_dbg.a
1567		LIBPUFFS?=	${DESTDIR}/usr/lib/libpuffs.a
1568		LIBQUOTA?=	${DESTDIR}/usr/lib/libquota.a
1569		LIBRADIUS?=	${DESTDIR}/usr/lib/libradius.a
1570		LIBRESOLV?=	${DESTDIR}/usr/lib/libresolv.a
1571		LIBRMT?=	${DESTDIR}/usr/lib/librmt.a
1572		LIBROKEN?=	${DESTDIR}/usr/lib/libroken.a
1573		LIBRPCSVC?=	${DESTDIR}/usr/lib/librpcsvc.a
1574		LIBRT?=		${DESTDIR}/usr/lib/librt.a
1575		LIBRUMP?=	${DESTDIR}/usr/lib/librump.a
1576		LIBRUMPFS_CD9660FS?=${DESTDIR}/usr/lib/librumpfs_cd9660fs.a
1577		LIBRUMPFS_EFS?=	${DESTDIR}/usr/lib/librumpfs_efs.a
1578		LIBRUMPFS_EXT2FS?=${DESTDIR}/usr/lib/librumpfs_ext2fs.a
1579		LIBRUMPFS_FFS?=	${DESTDIR}/usr/lib/librumpfs_ffs.a
1580		LIBRUMPFS_HFS?=	${DESTDIR}/usr/lib/librumpfs_hfs.a
1581		LIBRUMPFS_LFS?=	${DESTDIR}/usr/lib/librumpfs_lfs.a
1582		LIBRUMPFS_MSDOSFS?=${DESTDIR}/usr/lib/librumpfs_msdosfs.a
1583		LIBRUMPFS_NFS?=	${DESTDIR}/usr/lib/librumpfs_nfs.a
1584		LIBRUMPFS_NTFS?=${DESTDIR}/usr/lib/librumpfs_ntfs.a
1585		LIBRUMPFS_SYSPUFFS?=${DESTDIR}/usr/lib/librumpfs_syspuffs.a
1586		LIBRUMPFS_TMPFS?=${DESTDIR}/usr/lib/librumpfs_tmpfs.a
1587		LIBRUMPFS_UDF?=	${DESTDIR}/usr/lib/librumpfs_udf.a
1588		LIBRUMPFS_UFS?=	${DESTDIR}/usr/lib/librumpfs_ufs.a
1589		LIBRUMPUSER?=	${DESTDIR}/usr/lib/librumpuser.a
1590		LIBSASLC?=	${DESTDIR}/usr/lib/libsaslc.a
1591		LIBSKEY?=	${DESTDIR}/usr/lib/libskey.a
1592		LIBSL?=		${DESTDIR}/usr/lib/libsl.a
1593		LIBSQLITE3?=	${DESTDIR}/usr/lib/libsqlite3.a
1594		LIBSS?=		${DESTDIR}/usr/lib/libss.a
1595		LIBSSH?=	${DESTDIR}/usr/lib/libssh.a
1596		LIBSSL?=	${DESTDIR}/usr/lib/libssl.a
1597		LIBSSP?=	${DESTDIR}/usr/lib/libssp.a
1598		LIBSTDCXX?=	${DESTDIR}/usr/lib/libstdc++.a
1599		LIBSUPCXX?=	${DESTDIR}/usr/lib/libsupc++.a
1600		LIBTERMINFO?=	${DESTDIR}/usr/lib/libterminfo.a
1601		LIBTRE?=	${DESTDIR}/usr/lib/libtre.a
1602		LIBUSBHID?=	${DESTDIR}/usr/lib/libusbhid.a
1603		LIBUTIL?=	${DESTDIR}/usr/lib/libutil.a
1604		LIBWIND?=	${DESTDIR}/usr/lib/libwind.a
1605		LIBWRAP?=	${DESTDIR}/usr/lib/libwrap.a
1606		LIBY?=		${DESTDIR}/usr/lib/liby.a
1607		LIBZ?=		${DESTDIR}/usr/lib/libz.a
1608
1609		The following X-Windows libraries are predefined for DPADD:
1610
1611		LIBFS?=		${DESTDIR}/usr/X11R7/lib/libFS.a
1612		LIBGL?=		${DESTDIR}/usr/X11R7/lib/libGL.a
1613		LIBGLU?=	${DESTDIR}/usr/X11R7/lib/libGLU.a
1614		LIBICE?=	${DESTDIR}/usr/X11R7/lib/libICE.a
1615		LIBSM?=		${DESTDIR}/usr/X11R7/lib/libSM.a
1616		LIBX11?=	${DESTDIR}/usr/X11R7/lib/libX11.a
1617		LIBX11_XCB?=	${DESTDIR}/usr/X11R7/lib/libX11-xcb.a
1618		LIBXTRAP?=	${DESTDIR}/usr/X11R7/lib/libXTrap.a
1619		LIBXAU?=	${DESTDIR}/usr/X11R7/lib/libXau.a
1620		LIBXAW?=	${DESTDIR}/usr/X11R7/lib/libXaw.a
1621		LIBXCB?=	${DESTDIR}/usr/X11R7/lib/libxcb.a
1622		LIBXDMCP?=	${DESTDIR}/usr/X11R7/lib/libXdmcp.a
1623		LIBXEXT?=	${DESTDIR}/usr/X11R7/lib/libXext.a
1624		LIBXFONT?=	${DESTDIR}/usr/X11R7/lib/libXfont.a
1625		LIBXFT?=	${DESTDIR}/usr/X11R7/lib/libXft.a
1626		LIBXI?=		${DESTDIR}/usr/X11R7/lib/libXi.a
1627		LIBXINERAMA?=	${DESTDIR}/usr/X11R7/lib/libXinerama.a
1628		LIBXMU?=	${DESTDIR}/usr/X11R7/lib/libXmu.a
1629		LIBXMUU?=	${DESTDIR}/usr/X11R7/lib/libXmuu.a
1630		LIBXPM?=	${DESTDIR}/usr/X11R7/lib/libXpm.a
1631		LIBXRANDR?=	${DESTDIR}/usr/X11R7/lib/libXrandr.a
1632		LIBXRENDER?=	${DESTDIR}/usr/X11R7/lib/libXrender.a
1633		LIBXSS?=	${DESTDIR}/usr/X11R7/lib/libXss.a
1634		LIBXT?=		${DESTDIR}/usr/X11R7/lib/libXt.a
1635		LIBXTST?=	${DESTDIR}/usr/X11R7/lib/libXtst.a
1636		LIBXV?=		${DESTDIR}/usr/X11R7/lib/libXv.a
1637		LIBXXF86DGA?=	${DESTDIR}/usr/X11R7/lib/libXxf86dga.a
1638		LIBXXF86MISC?=	${DESTDIR}/usr/X11R7/lib/libXxf86misc.a
1639		LIBXXF86VM?=	${DESTDIR}/usr/X11R7/lib/libXxf86vm.a
1640		LIBDPS?=	${DESTDIR}/usr/X11R7/lib/libdps.a
1641		LIBFNTSTUBS?=	${DESTDIR}/usr/X11R7/lib/libfntstubs.a
1642		LIBFONTCACHE?=	${DESTDIR}/usr/X11R7/lib/libfontcache.a
1643		LIBFONTCONFIG?=	${DESTDIR}/usr/X11R7/lib/libfontconfig.a
1644		LIBFONTENC?=	${DESTDIR}/usr/X11R7/lib/libfontenc.a
1645		LIBFREETYPE?=	${DESTDIR}/usr/X11R7/lib/libfreetype.a
1646		LIBLBXUTIL?=	${DESTDIR}/usr/X11R7/lib/liblbxutil.a
1647		LIBXKBFILE?=	${DESTDIR}/usr/X11R7/lib/libxkbfile.a
1648
1649SHAREDSTRINGS	If defined, a new .c.o rule is used that results in shared
1650		strings, using xstr(1). Note that this will not work with
1651		parallel makes.
1652
1653STRIPFLAG	The flag passed to the install program to cause the binary
1654		to be stripped.
1655
1656SUBDIR		A list of subdirectories that should be built as well.
1657		Each of the targets will execute the same target in the
1658		subdirectories.
1659
1660SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
1661		These are installed exactly like programs.
1662
1663SCRIPTSDIR	The location to install the scripts.  Each script can be
1664		installed to a separate path by setting SCRIPTSDIR_<script>.
1665
1666SCRIPTSNAME	The name that the above program will be installed as, if
1667		different from ${SCRIPTS}. These can be further specialized
1668		by setting SCRIPTSNAME_<script>.
1669
1670FILES		See description of <bsd.files.mk>.
1671
1672SHLINKDIR	Target directory for shared linker.  See description of
1673		<bsd.own.mk> for additional information about this variable.
1674
1675The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
1676if it exists, as well as the include file <bsd.man.mk>.
1677
1678Some simple examples:
1679
1680To build foo from foo.c with a manual page foo.1, use:
1681
1682	PROG=	foo
1683
1684	.include <bsd.prog.mk>
1685
1686To build foo from foo.c with a manual page foo.2, add the line:
1687
1688	MAN=	foo.2
1689
1690If foo does not have a manual page at all, add the line:
1691
1692	MKMAN=	no
1693
1694If foo has multiple source files, add the line:
1695
1696	SRCS=	a.c b.c c.c d.c
1697
1698
1699=-=-=-=-=   bsd.rpc.mk   =-=-=-=-=
1700
1701The include file <bsd.rpc.mk> contains a makefile fragment used to
1702construct source files built by rpcgen.
1703
1704The following macros may be defined in makefiles which include
1705<bsd.rpc.mk> in order to control which files get built and how they
1706are to be built:
1707
1708RPC_INCS:	construct .h file from .x file
1709RPC_XDRFILES:	construct _xdr.c from .x file
1710		(for marshalling/unmarshalling data types)
1711RPC_SVCFILES:	construct _svc.c from .x file
1712		(server-side stubs)
1713RPC_SVCFLAGS:	Additional flags passed to builds of RPC_SVCFILES.
1714
1715RPC_XDIR:	Directory containing .x/.h files
1716
1717
1718=-=-=-=-=   bsd.shlib.mk   =-=-=-=-=
1719
1720The include file <bsd.shlib.mk> computes parameters for shared library
1721installation and use.  It defines no targets.  <bsd.own.mk> MUST be
1722included before <bsd.shlib.mk>.
1723
1724<bsd.own.mk> sets the following variables, if they are not already defined
1725(defaults are in brackets):
1726
1727SHLIBINSTALLDIR	If ${USE_SHLIBDIR} is not "no", use ${SHLIBINSTALLDIR}
1728		instead of ${LIBDIR} as the base path for shared library
1729		installation.  [/lib]
1730
1731SHLIBDIR	The path to USE_SHLIBDIR shared libraries to use when building
1732		a program.  [/lib for programs in /bin and /sbin, /usr/lib
1733		for all others.]
1734
1735_LIBSODIR	Set to ${SHLIBINSTALLDIR} if ${USE_SHLIBDIR} is not "no",
1736		otherwise set to ${LIBDIR}
1737
1738SHLINKINSTALLDIR Base path for shared linker.  [/libexec]
1739
1740SHLINKDIR	Path to use for shared linker when building a program.
1741		[/libexec for programs in /bin and /sbin, /usr/libexec for
1742		all others.]
1743
1744
1745=-=-=-=-=   bsd.subdir.mk   =-=-=-=-=
1746
1747The include file <bsd.subdir.mk> contains the default targets for building
1748subdirectories.  It has the same eight targets as <bsd.prog.mk>: all,
1749clean, cleandir, depend, includes, install, lint, and tags.  It uses the
1750following variables:
1751
1752NOSUBDIR	If this variable is defined, then the SUBDIR variable
1753		will be ignored and subdirectories will not be processed.
1754
1755SUBDIR		For all of the directories listed in ${SUBDIR}, the
1756		specified directory will be visited and the target made.
1757
1758		As a special case, the use of a token .WAIT as an
1759		entry in SUBDIR acts as a synchronization barrier
1760		when multiple make jobs are run; subdirs before the
1761		.WAIT must complete before any subdirs after .WAIT are
1762		started.  See make(1) for some caveats on use of .WAIT
1763		and other special sources.
1764
1765
1766=-=-=-=-=   bsd.x11.mk   =-=-=-=-=
1767
1768The include file <bsd.x11.mk> contains parameters and targets for
1769cross-building X11 from ${X11SRCDIR.xc} / ${X11MITSRCDIR.*}.
1770It should be included after the general Makefile contents but before
1771the include files such as <bsd.prog.mk> and <bsd.lib.mk>.
1772
1773It provides the following targets:
1774	.man.1 .man.3 .man.4 .man.5 .man.7:
1775		If ${MAN} or ${PROG} is set and ${MKMAN} != "no",
1776		these rules convert from X11's manual page source
1777		into an mdoc.old source file.
1778
1779It sets the following variables:
1780
1781BINDIR			Set to ${X11BINDIR}.
1782			To override, define after including <bsd.x11.mk>
1783
1784LIBDIR			Set to ${X11USRLIBDIR}.
1785			To override, define after including <bsd.x11.mk>
1786
1787MANDIR			Set to ${X11MANDIR}.
1788			To override, define after including <bsd.x11.mk>
1789
1790CPPFLAGS		Appended with definitions to include from
1791			${DESTDIR}${X11INCDIR}
1792
1793LDFLAGS			Appended with definitions to link from
1794			${DESTDIR}${X11USRLIBDIR}
1795
1796X11FLAGS.CONNECTION	Equivalent to X11's CONNECTION_FLAGS.
1797
1798X11FLAGS.EXTENSION	Equivalent to X11's EXT_DEFINES.
1799
1800X11FLAGS.LOADABLE	Equivalent to X11's LOADABLE.
1801
1802X11FLAGS.OS_DEFINES	Equivalent to X11's OS_DEFINES.
1803
1804X11FLAGS.SERVER		Equivalent to X11's ServerDefines.
1805
1806X11FLAGS.THREADLIB	Equivalent to X11's THREADS_DEFINES for libraries.
1807
1808X11FLAGS.THREADS	Equivalent to X11's THREADS_DEFINES.
1809
1810X11FLAGS.VERSION	cpp(1) definitions of OSMAJORVERSION and OSMINORVERSION.
1811
1812X11FLAGS.DIX		Equivalent to X11's DIX_DEFINES.
1813
1814X11TOOL_UNXCOMM		Commandline to convert `XCOMM' comments to `#'
1815
1816It uses the following variables:
1817
1818APPDEFS			List of app-default files to install.
1819
1820CPPSCRIPTS		List of files/scripts to run through cpp(1)
1821			and then ${X11TOOL_UNXCOMM}.  The source files
1822			have a `.cpp' suffix, the generated files do not.
1823
1824CPPSCRIPTFLAGS		Additional flags to cpp(1) when building CPPSCRIPTS.
1825
1826CPPSCRIPTFLAGS_<fn>	Additional flags to cpp(1) when building CPPSCRIPT <fn>.
1827
1828
1829=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1830
1831The following files are described here for completion, but they are not
1832supposed to be included directly from other Makefiles; they are used
1833internally by other system files.
1834
1835=-=-=-=-=   bsd.sys.mk   =-=-=-=-=
1836
1837The include file <bsd.sys.mk> is used by other system mk files and
1838it is not intended to be included standalone. It contains rules and
1839system build variables. It requires bsd.own.mk to be included first.
1840It contains overrides that are used when building the NetBSD source tree.
1841
1842The following variables control how various files are compiled/built.
1843(Note that these may be overridden in <bsd.own.mk> if USETOOLS == "yes"):
1844
1845AR		Create, modify, and extract from archives.  [ar]
1846
1847ARFLAGS		Options to ${AR}.  [rl]
1848
1849AS		Assembler.  [as]
1850
1851AFLAGS		Options to ${CC} when compiling or linking .s or .S
1852		assembly source files.  []
1853
1854BUILDSEED	GCC uses random numbers when compiling C++ code.
1855		If this option is present, seed the random number
1856		generator based on the value, source file names and
1857		the output file name to make builds more deterministic.
1858		Additional information is available in the GCC
1859		documentation of -frandom-seed.
1860
1861CC		C compiler.  [cc]
1862
1863CFLAGS		Options to ${CC}.  [Usually -O or -O2]
1864
1865CPP		C Pre-Processor.  [cpp]
1866
1867CPPFLAGS	Options to ${CPP}.  []
1868
1869CPUFLAGS	Optimization flags for ${CC}.  []
1870
1871CXX		C++ compiler.  [c++]
1872
1873CXXFLAGS	Options to ${CXX}.  [${CFLAGS}]
1874
1875ELF2ECOFF	Convert ELF-format executable to ECOFF.  [elf2ecoff]
1876
1877FC		Fortran compiler.  [f77]
1878
1879FFLAGS		Options to {$FC}.  [-O]
1880
1881HOST_SH		Shell.	This must be an absolute path, because it may be
1882		substituted into "#!" lines in scripts.	 [/bin/sh]
1883
1884INSTALL		install(1) command.  [install]
1885
1886LEX		Lexical analyzer.  [lex]
1887
1888LFLAGS		Options to ${LEX}.  []
1889
1890LPREFIX		Symbol prefix for ${LEX} (see -P option in lex(1)) [yy]
1891
1892LD		Linker.  [ld]
1893
1894LDFLAGS		Options to ${CC} during the link process.  []
1895
1896LINT		C program verifier.  [lint]
1897
1898LINTFLAGS	Options to ${LINT}.  [-chapbxzgFS]
1899
1900LORDER		List dependencies for object files.  [lorder]
1901
1902MAKE		make(1).  [make]
1903
1904MKDEP		Construct Makefile dependency list.  [mkdep]
1905
1906MKDEPCXX	Construct Makefile dependency list for C++ files.  [mkdep]
1907
1908NM		List symbols from object files.  [nm]
1909
1910PC		Pascal compiler.  [pc]  (Not present)
1911
1912PFLAGS		Options to ${PC}.  []
1913
1914OBJC		Objective C compiler.  [${CC}]
1915
1916OBJCFLAGS	Options to ${OBJC}.  [${CFLAGS}]
1917
1918OBJCOPY		Copy and translate object files.  [objcopy]
1919
1920OBJCOPYLIBFLAGS	Flags to pass to objcopy when library objects are
1921		being built. [${.TARGET} =~ "*.po" ? -X : -x]
1922
1923OBJDUMP		Display information from object files.  [objdump]
1924
1925RANLIB		Generate index to archive.  [ranlib]
1926
1927SIZE		List section sizes and total size.  [size]
1928
1929STRIP		Discard symbols from object files.  [strip]
1930
1931TSORT		Topological sort of a directed graph.  [tsort -q]
1932
1933YACC		LALR(1) parser generator.  [yacc]
1934
1935YFLAGS		Options to ${YACC}.  []
1936
1937YHEADER		If defined, add "-d" to YFLAGS, and add dependencies
1938		from <file>.y to <file>.h and <file>.c, and add
1939		<foo>.h to CLEANFILES.
1940
1941YPREFIX		If defined, add "-p ${YPREFIX}" to YFLAGS.
1942
1943
1944Other variables of note (incomplete list):
1945
1946NOGCCERROR	If defined, prevents passing certain ${CFLAGS} to GCC
1947		that cause warnings to be fatal, such as:
1948			-Werror -Wa,--fatal-warnings
1949		(The latter being for as(1).)
1950
1951NOCLANGERROR	If defined and clang is used as C compiler, -Werror is not
1952		passed to it.
1953
1954WARNS		Crank up compiler warning options; the distinct levels are:
1955			WARNS=1
1956			WARNS=2
1957			WARNS=3
1958			WARNS=4
1959			WARNS=5
1960
1961=-=-=-=-=   bsd.host.mk  =-=-=-=-=
1962
1963This file is automatically included from bsd.own.mk. It contains settings
1964for all the HOST_* variables that are used in host programs and libraries.
1965
1966HOST_AR			The host archive processing command
1967
1968HOST_CC			The host c compiler
1969
1970HOST_CFLAGS		The host c compiler flags
1971
1972HOST_COMPILE.c		The host c compiler line with flags
1973
1974HOST_COMPILE.cc		The host c++ compiler line with flags
1975
1976HOST_CPP		The host c pre-processor
1977
1978HOST_CPPFLAGS		The cost c pre-processor flags
1979
1980HOST_CXX		The host c++ compiler
1981
1982HOST_CXXFLAGS		The host c++ compiler flags
1983
1984HOST_INSTALL_DIR	The host command to install a directory
1985
1986HOST_INSTALL_FILE	The host command to install a file
1987
1988HOST_INSTALL_SYMLINK	The host command to install a symlink
1989
1990HOST_LD			The host linker command
1991
1992HOST_LDFLAGS		The host linker flags
1993
1994HOST_LINK.c		The host c linker line with flags
1995
1996HOST_LINK.cc		The host c++ linker line with flags
1997
1998HOST_LN			The host command to link two files
1999
2000HOST_MKDEP		The host command to create dependencies for c programs
2001
2002HOST_MKDEPCXX		The host command to create dependencies for c++ programs
2003
2004HOST_OSTYPE		The host OSNAME-RELEASE-ARCH tupple
2005
2006HOST_RANLIB		The host command to create random access archives
2007
2008HOST_SH			The host Bourne shell interpreter name (absolute path)
2009
2010=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
2011