bsd.README revision 1.357
1#	$NetBSD: bsd.README,v 1.357 2017/01/07 22:27:36 christos 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
139MKCOMPATTESTS  	If "yes", build and install the NetBSD test suite when
140		building and installing src/compat.
141		Default: no
142
143MKCOMPATX11  	If "yes", build and install the X11 libraries when
144		building and installing src/compat.
145		Default: no
146
147MKCOMPLEX	If "no", don't build libm support for <complex.h>
148		Default: yes
149
150MKCRYPTO	If "no", no cryptography support will be built into the system,
151		and also acts as "MKKERBEROS=no".
152		Default: yes
153
154MKCRYPTO_RC5	If not "no", RC5 support will be built into libcrypto_rc5
155		Default: no
156
157MKCTF		If "no", do not build and install CTF tools, and also
158		don't generate and manipulate CTF data of ELF binaries
159		during build.
160		Default: no
161
162NOCTF		Don't generate and manipulate CTF data of ELF binaries
163		during build. It is set internally for standalone programs.
164
165MKCVS		If "no", don't build or install cvs(1).
166		Default: yes
167
168MKDEBUG		If "no", don't build and install separate debugging symbols
169		into /usr/libdata/debug.
170		Default: no
171
172NODEBUG		Don't compile with debugging symbols during build.
173		It is set internally for standalone programs.
174
175MKDEBUGLIB	Build *_g.a debugging libraries, which are compiled
176		with -DDEBUG.
177		Default: no
178
179MKDEPINCLUDES	If "yes" issue .include statements in the .depend file
180		instead of inlining the contents of the .d files. Useful
181		when stale dependencies are present, to list the exact
182		files that need refreshing. It is off by default because
183		it is possibly slower.
184		Default "no"
185
186MKDOC		If "no", don't build or install the documentation.
187		Default: yes
188
189MKDTRACE	If "no", do not build and install the kernel modules,
190		utilities and libraries used to implement the dtrace(1)
191		facility.
192		Default: no
193
194MKDYNAMICROOT	If "no", build programs in /bin and /sbin statically,
195		don't install certain libraries in /lib, and don't
196		install the shared linker into /libexec.
197		Default: yes
198
199MKEXTSRC        If not "no", 'make build' also descends into either src/extsrc
200		to cross-build programs and libraries externally added by
201		users, and automatically enables creation of those sets.
202		Default: no
203
204MKGCC		If "no", don't build gcc(1) or any of the GCC-related
205		libraries (libgcc, libobjc, libstdc++).
206		Default: yes
207
208MKGCCCMDS	If "no", don't build gcc(1), but do build the GCC-related
209		libraries (libgcc, libobjc, libstdc++).
210		Default: yes
211
212MKGDB		If "no", don't build gdb(1).
213		Default: yes
214
215MKGROFFHTMLDOC	If "no", avoid trying to use groff to generate html for
216		miscellaneous articles, as this seems to sometimes want
217		to run software not in base. Does not affect html man
218		pages.
219		Default: no
220
221MKHESIOD	If "no", disables building of Hesiod infrastructure
222		(libraries and support programs).
223		Default: yes
224
225MKHOSTOBJ	If not "no", for programs intended to be run on the compile
226		host, the name, release, and architecture of the host
227		operating system will be suffixed to the name of the object
228		directory created by "make obj".
229		Default: no
230
231MKHTML		If "no", don't build or install the HTML man pages.
232		Default: yes
233
234MKIEEEFP	If "no", don't add code for IEEE754/IEC60559 conformance.
235		Has no effect on most platforms.
236		Default: yes
237
238MKSTRIPIDENT	Strip the RCS IDs from program binaries and shared libraries.
239		Default: no
240
241MKINET6		If "no", disables building of INET6 (IPv6) infrastructure
242		(libraries and support programs).  This option must not be
243		set to "no" if MKX11 is not "no".
244		Default: yes
245
246MKINFO		If "no", don't build or install Info documentation from
247		Texinfo source files.
248		Default: yes
249
250MKIPFILTER	If "no", don't build or install the IP Filter programs and LKM.
251		Default: yes
252
253MKISCSI		If "no", don't build or install iSCSI library or applications
254		(depends on libpthread.)
255		Default: yes
256
257MKKDEBUG	If "yes", force building of kernel symbol info and creation
258		of netbsd.gdb in all kernel builds, independently of the
259		settings for "makeoptions DEBUG" in the kernel config file.
260
261MKKERBEROS	If "no", disables building of Kerberos v5
262		infrastructure (libraries and support programs).
263		Default: yes
264
265MKKMOD		If "no", disables building of kernel modules.
266		Default: yes
267
268MKKYUA		If "no", don't build Kyua nor its dependent library Lutok.
269		Note that setting this to "no" does not disable the build of
270		the NetBSD test suite itself; the build of the tests is
271		controlled by the MKATF knob.
272		Default: no (until the import is done and validated)
273
274MKLDAP		If "no", disables building of LDAP infrastructure
275		(libraries and support programs).
276		Default: yes
277
278MKLIBCXX	If not "no", build and install libc++.
279		Default: no
280
281MKLIBSTDCXX	If not "no", build and install libstdc++.
282		Default: yes
283
284MKLINKLIB	If "no", act as "MKLINT=no MKPICINSTALL=no MKPROFILE=no".
285		Also:
286			- don't install the .a libraries
287			- don't install _pic.a libraries on PIC systems
288			- don't build .a libraries on PIC systems
289			- don't install the .so symlink on ELF systems
290		I.e, only install the shared library (and the .so.major
291		symlink on ELF).
292		Default: yes
293
294MKLINT		If "no", don't build or install the lint libraries.
295		Default: yes
296
297MKLVM		If "no", don't build or install the logical volume manager
298		and device mapper tools and libraries
299		Default: yes
300
301MKMAN		If "no", don't build or install the man or catman pages,
302		and also acts as "MKCATPAGES=no MKHTML=no".
303		Default: yes
304
305MKMANDOC	If "yes", mandoc is built as tool and used to compile
306		catman or html pages.  A directory can be exempted by
307		defining NOMANDOC.  Individual man pages are exempted
308		if NOMANDOC.${target} is set to "yes".
309		Default: yes
310
311MKMANZ		If not "no", compress manual pages at installation time.
312		Default: no
313
314MKMDNS		If "no", disables building of mDNS infrastructure
315		(libraries and support programs).
316		Default: yes
317
318MKNLS		If "no", don't build or install the NLS files and locale
319		definition files.
320		Default: yes
321
322MKNPF		If "no", don't build or install the NPF and its modules.
323		Default: yes
324
325MKNSD		If "no", don't build or install the "nsd" DNS authoritative
326		server.
327		Default: no
328
329MKOBJ		If "no", don't enable the rule which creates objdirs,
330		and also acts as "MKOBJDIRS=no".
331		Default: yes
332
333MKOBJDIRS	If "no", don't create objdirs during a "make build".
334		Default: no
335
336MKPAM		If "no", disables building of PAM authentication
337		infrastructure (libraries and support programs).
338		Default: yes
339
340MKPCC		If "no", don't build pcc(1) or any of the PCC-related
341		libraries (libpcc, libpccsoftfloat).
342		Default: no
343
344MKPF		If "no", don't build or install the pf programs and LKM.
345		Default: yes
346
347MKPIC		If "no", don't build or install shared libraries, and
348		also acts as "MKPICLIB=no"
349		Default: yes (for MACHINE_ARCHs that support it)
350
351MKPICINSTALL	If "no", don't install the *_pic.a libraries.
352		Default: yes
353
354MKPICLIB	If "no", don't build *_pic.a libraries, and build the
355		shared object libraries from the .a libraries.
356		A symlink is installed in ${DESTDIR}/usr/lib for the
357		_pic.a library pointing to the .a library.
358		Default: yes
359
360MKPIE		If "no", create regular executables. Otherwise create
361		PIE (Position Independent Executables).
362		Default: no
363
364NOPIE		Don't create PIE (Position Independent Executables)
365		It is set internally for standalone programs.
366
367MKPIGZGZIP	If "no", only install pigz as pigz, not gzip.
368		Default: no
369
370MKPOSTFIX	If "no", don't build or install postfix(1).
371		Default: yes
372
373MKPROFILE	If "no", don't build or install the profiling (*_p.a) libraries.
374		Default: yes
375
376MKRADEONFIRMWARE If "no", install the /libdata/firmware/radeon directory,
377		which is necessary for the radeon DRM driver.
378		Default: yes on i386 and amd64, no elsewhere.
379
380MKRELRO		If "partial", set the non-PLT GOT to read-only. If "full"
381		also force immediate symbol binding.
382		Default: no
383	
384MKREPRO         If "yes", create reproducable builds. This enables
385		different switches to make two builds from the same source tree
386		result in the same build results.
387		Default: no
388
389MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
390		MKMAN=no MKNLS=no".
391		I.e, don't build catman pages, documentation, Info
392		documentation, man pages, NLS files, ...
393		Default: yes
394
395MKSKEY		If "no", disables building of S/key authentication
396		infrastructure (libraries and support programs).
397		Default: yes
398
399MKSLJIT		If "no", disables building of sljit (stack-less platform
400		independent JIT compiler) private library and tests.
401		Default: yes on amd64, i386 and sparc, no elsewhere.
402
403MKSOFTFLOAT	If not "no", build with options to enable the compiler to
404		generate output containing library calls for floating
405		point and possibly soft-float library support.
406		Default: no
407
408MKSTATICLIB	If "no", don't build or install the normal static (*.a)
409		libraries.
410		Default: yes
411
412MKTOOLSDEBUG	If "yes" build the tools with debugging symbols.
413		Default: no
414
415MKTPM		If "no" then don't build the Trusted Platform Module
416		infrastructure.
417		Default: no
418
419MKUNBOUND	If not "no", build and install the "unbound" DNS resolver.
420		Default: yes
421
422MKUNPRIVED	If not "no", don't set the owner/group/mode when installing
423		files or directories, and keep a metadata log of what
424		the owner/group/mode should be.  This allows a
425		non-root "make install".
426		Default: no
427
428MKUPDATE 	If not "no", 'make install' only installs targets that are
429		more recently modified in the source directories that their
430		installed counterparts.
431		Default: no
432
433MKX11		If not "no", 'make build' also descends into 
434		src/external/mit/xorg to cross-build X11 and automatically
435		enables creation of X sets.
436		Default: no
437
438MKX11FONTS	If not "no", do not build or install the X fonts.  The xfont
439		set is still created but will be empty.
440		Default: yes
441
442MKX11MOTIF:	If "yes", build the native X11 libGLw with Motif stubs.  If
443		Motif is not installed in the default location /usr/pkg, the
444		location can be specified using the X11MOTIFPATH variable.
445		Default: no
446
447MKYP		If "no", disables building of YP (NIS)
448		infrastructure (libraries and support programs).
449		Default: yes
450
451MKZFS		If "no", do not build and install utilities and libraries
452		used to manage ZFS file system. Do not build zfs and solaris
453		compatibility kernel modules.  Note: ZFS requires 64bit
454		atomic operations.
455		Default: yes on amd64, no elsewhere.
456
457MKRUMP		If "no", do not build and install rump related headers,
458		libraries, and programs.
459		Default: yes
460
461USE_HESIOD	If "no", disables building Hesiod support into
462		various system utilities/libraries that support it.
463		If ${MKHESIOD} is "no", USE_HESIOD will also be
464		forced to "no".
465
466USE_INET6	If "no", disables building INET6 (IPv6) support into
467		various system utilities/libraries that support it.
468		If ${MKINET6} is "no", USE_INET6 will also be
469		forced to "no".
470
471USE_JEMALLOC	If "no", disables building the "jemalloc" allocator
472		designed for improved performance with threaded
473		applications.  The "phkmalloc" allocator as used up
474		before NetBSD-5.0 will be substituted.
475
476USE_KERBEROS	If "no", disables building Kerberos v5
477		support into various system utilities/libraries that
478		support it.  If ${MKKERBEROS} is "no", USE_KERBEROS
479		will also be forced to "no".
480
481USE_LDAP	If "no", disables building LDAP support into various
482		system utilities/libraries that support it.
483		If ${MKLDAP} is "no", USE_LDAP will also be forced to "no".
484
485USE_PAM		If "no", disables building PAM authentication support
486		into various system utilities/libraries that support it.
487		If ${MKPAM} is "no", USE_PAM will also be forced to "no".
488
489USE_SKEY	If "no", disables building S/key authentication
490		support into various system utilities/libraries that
491		support it.  If ${MKSKEY} is "no", USE_SKEY will
492		also be forced to "no".
493		Default: no
494
495USE_SSP		If "no", disables GCC stack protection code, which
496		detects stack overflows and aborts the program. The
497		stack protection code imposes a performance penalty
498		of about 5%.
499		Default: "no", unless "USE_FORT" is set to "yes"
500
501NOSSP		Don't compile with stack protector during build.
502		It is set internally for standalone programs.
503
504USE_FORT 	If "yes" turns on substitute wrappers for commonly used
505		functions that do not do bounds checking regularly, but
506		they could in some cases by using the gcc
507		__builtin_object_size() function to determine the buffer
508		size where it is known and detect buffer overflows.
509		These substitute functions are in /usr/include/ssp.
510		Default: depends on the part of the source tree
511
512NOFORT		Don't compile with substitute wrappers during build.
513		It is set internally for standalone programs.
514
515USE_YP		If "no", disables building YP (NIS) support into
516		various system utilities/libraries that support it.
517		If ${MKYP} is "no", USE_YP will also be forced to "no".
518
519USE_PIGZGZIP	If "no", use the host "gzip" program to compress things.
520		Otherwise, build tools/pigz, set TOOL_GZIP=${TOOL_PIGZ},
521		and use nbpigz to compress things.
522		Default: "no".
523
524COPTS.lib<lib>
525OBJCOPTS.lib<lib>
526LDADD.lib<lib>
527CPPFLAGS.lib<lib>
528CXXFLAGS.lib<lib>
529COPTS.<prog>
530OBJCCOPTS.<prog>
531LDADD.<prog>
532CPPFLAGS.<prog>
533CXXFLAGS.<prog>	These provide a way to specify additions to the associated
534		variables in a way that applies only to a particular library
535		or program.  <lib> corresponds to the LIB variable set in
536		the library's makefile.  <prog> corresponds to either PROG
537		or PROG_CXX (if set).  For example, if COPTS.libcrypto is
538		set to "-g", "-g" will be added to COPTS only when compiling
539		the crypto library.
540
541The active compiler is selected using the following variables:
542AVAILABLE_COMPILER
543		List of available compiler suites.  Processed in order
544		for selecting the active compiler for each frontend.
545HAVE_PCC	If defined, PCC is present and enabled.
546HAVE_LLVM	If defined, LLVM/Clang is present and enabled.
547UNSUPPORTED_COMPILER.xxx
548		If defined, the support for compiler "xxx" is disabled.
549
550For the frontends (CC, CPP, CXX, FC and OBJC) the following variables exist:
551ACTIVE_CC	Active compile suite for the CC frontend.
552SUPPORTED_CC	Compile suite with support for the CC frontend.
553TOOL_CC.xxx	Path to the CC frontend for compiler "xxx"
554
555=-=-=-=-=   sys.mk   =-=-=-=-=
556
557The include file <sys.mk> has the default rules for all makes, in the BSD
558environment or otherwise.  You probably don't want to touch this file.
559
560=-=-=-=-=   bsd.own.mk   =-=-=-=-=
561
562The include file <bsd.own.mk> contains source tree configuration parameters,
563such as the owners, groups, etc. for both manual pages and binaries, and
564a few global "feature configuration" parameters.
565
566It has no targets.
567
568To get system-specific configuration parameters, <bsd.own.mk> will try to
569include the file specified by the "MAKECONF" variable.  If MAKECONF is not
570set, or no such file exists, the system make configuration file, /etc/mk.conf
571is included.  These files may define any of the variables described below.
572
573<bsd.own.mk> sets the following variables, if they are not already defined
574(defaults are in brackets):
575
576NETBSDSRCDIR	Top of the NetBSD source tree.
577		If _SRC_TOP_ != "", that will be used as the default,
578		otherwise BSDSRCDIR will be used as the default.
579		Various makefiles within the NetBSD source tree will
580		use this to reference the top level of the source tree.
581
582_SRC_TOP_	Top of the system source tree, as determined by <bsd.own.mk>
583		based on the presence of tools/ and build.sh.  This variable
584		is "internal" to <bsd.own.mk>, although its value is only
585		determined once and then propagated to all sub-makes.
586
587_NETBSD_VERSION_DEPENDS
588		A list of files which contain information about
589		the version of the NetBSD being built.  This is
590		defined only if the current directory appears
591		to be inside a NetBSD source tree.  The list of
592		files includes ${NETBSDSRCDIR}/sys/sys/param.h
593		(which contains the kernel version number),
594		${NETBSDSRCDIR}/sys/conf/newvers.sh and
595		${NETBSDSRCDIR}/sys/conf/osrelease.sh (which
596		interpret the information in sys/sys/param.h), and
597		${_SRC_TOP_OBJ_}/params (which is an optional file,
598		created by "make build" in ${_SRC_TOP_}/Makefile,
599		containing all the variables that may influence the
600		build).
601
602		Targets that depend on the NetBSD version, or on
603		variables defined at build time, can declare a
604		dependency on ${_NETBSD_VERSION_DEPENDS}, like this:
605
606			version.c: ${_NETBSD_VERSION_DEPENDS}
607				commands to create version.c
608
609BSDSRCDIR	The real path to the system sources, so that 'make obj'
610		will work correctly.  [/usr/src]
611
612BSDOBJDIR	The real path to the system 'obj' tree, so that 'make obj'
613		will work correctly.  [/usr/obj]
614
615BINGRP		Binary group.  [wheel]
616
617BINOWN		Binary owner.  [root]
618
619BINMODE		Binary mode.  [555]
620
621NONBINMODE	Mode for non-executable files.  [444]
622
623MANDIR		Base path for manual installation.  [/usr/share/man/cat]
624
625MANGRP		Manual group.  [wheel]
626
627MANOWN		Manual owner.  [root]
628
629MANMODE		Manual mode.  [${NONBINMODE}]
630
631MANINSTALL	Manual installation type.  Space separated list:
632			catinstall, htmlinstall, maninstall
633		Default value derived from MKCATPAGES and MKHTML.
634
635LDSTATIC	Control program linking; if set blank, link everything
636		dynamically.  If set to "-static", link everything statically.
637		If not set, programs link according to their makefile.
638
639LIBDIR		Base path for library installation.  [/usr/lib]
640
641LINTLIBDIR	Base path for lint(1) library installation.  [/usr/libdata/lint]
642
643LIBGRP		Library group.  [${BINGRP}]
644
645LIBOWN		Library owner.  [${BINOWN}]
646
647LIBMODE		Library mode.  [${NONBINMODE}]
648
649DOCDIR		Base path for system documentation (e.g. PSD, USD, etc.)
650	        installation.  [/usr/share/doc]
651
652DOCGRP		Documentation group.  [wheel]
653
654DOCOWN		Documentation owner.  [root]
655
656DOCMODE		Documentation mode.  [${NONBINMODE}]
657
658GZIP_N_FLAG	Flags to pass to TOOL_GZIP to prevent it from inserting
659		file names or timestamps in the compressed output.
660		[-n, or -nT when TOOL_GZIP is really TOOL_PIGZ]
661
662NLSDIR		Base path for Native Language Support files installation.
663		[/usr/share/nls]
664
665NLSGRP		Native Language Support files group.  [wheel]
666
667NLSOWN		Native Language Support files owner.  [root]
668
669NLSMODE		Native Language Support files mode.  [${NONBINMODE}]
670
671X11SRCDIR	The path to the xsrc tree.  [${NETBSDSRCDIR}/../xsrc,
672		if that exists; otherwise /usr/xsrc]
673
674X11SRCDIR.local	The path to the local X11 src tree.  [${X11SRCDIR}/local]
675
676X11SRCDIR.lib<package>
677X11SRCDIR.<package>
678		The path to the xorg src tree for the specificed package>.
679		[${X11SRCDIR}/external/mit/xorg/<package>/dist]
680
681X11ROOTDIR	Root directory of the X11 installation.  [/usr/X11R6 or
682		[/usr/X11R7]
683
684X11BINDIR	X11 bin directory.  [${X11ROOTDIR}/bin]
685
686X11FONTDIR	X11 font directory.  [${X11ROOTDIR}/lib/X11/fonts]
687
688X11INCDIR	X11 include directory.  [${X11ROOTDIR}/include]
689
690X11LIBDIR	X11 lib/x11 (config) directory.  [${X11ROOTDIR}/lib/X11]
691
692X11MANDIR	X11 manual directory.  [${X11ROOTDIR}/man]
693
694X11USRLIBDIR	X11 library directory.  [${X11ROOTDIR}/lib]
695
696STRIPFLAG	The flag passed to the install program to cause the binary
697		to be stripped.  This is to be used when building your
698		own install script so that the entire system can be made
699		stripped/not-stripped using a single knob.  []
700
701COPY		The flag passed to the install program to cause the binary
702		to be copied rather than moved.  This is to be used when
703		building our own install script so that the entire system
704		can either be installed with copies, or with moves using
705		a single knob.  [-c]
706
707MAKEDIRTARGETENV
708		Environment variables passed to the child make process
709		invoked by MAKEDIRTARGET.
710
711MAKEDIRTARGET dir target [params]
712		Runs "cd $${dir} && ${MAKE} [params] $${target}",
713		displaying a "pretty" message whilst doing so.
714
715RELEASEMACHINEDIR
716		Subdirectory used below RELEASEDIR when building
717		a release.  [${MACHINE}]
718
719RELEASEMACHINE	Subdirectory or path component used for the following
720		paths:
721			distrib/${RELEASEMACHINE}
722			distrib/notes/${RELEASEMACHINE}
723			etc/etc.${RELEASEMACHINE}
724		Used when building a release.  [${MACHINE}]
725
726Additionally, the following variables may be set by <bsd.own.mk> or in a
727make configuration file to modify the behavior of the system build
728process (default values are in brackets along with comments, if set by
729<bsd.own.mk>):
730
731USETOOLS	Indicates whether the tools specified by ${TOOLDIR} should
732		be used as part of a build in progress.
733		Supported values:
734
735		yes	Use the tools from TOOLDIR.
736			Must be set to this if cross-compiling.
737
738		no	Do not use the tools from TOOLDIR, but refuse to
739			build native compilation tool components that are
740			version-specific for that tool.
741
742		never	Do not use the tools from TOOLDIR, even when
743			building native tool components.  This is similar to
744			the traditional NetBSD build method, but does not
745			verify that the compilation tools in use are
746			up-to-date enough in order to build the tree
747			successfully.  This may cause build or runtime
748			problems when building the whole NetBSD source tree.
749
750		Default: "yes" if building all or part of a whole NetBSD
751		source tree (detected automatically); "no" otherwise
752		(to preserve traditional semantics of the <bsd.*.mk>
753		make(1) include files).
754
755OBJECT_FMT	Object file format.  [set to "ELF" on architectures that
756		use ELF -- currently all architectures].
757
758TOOLCHAIN_MISSING
759		If not "no", this indicates that the platform being built
760		does not have a working in-tree toolchain.  If the
761		${MACHINE_ARCH} in question falls into this category,
762		TOOLCHAIN_MISSING is conditionally assigned the value "yes".
763		Otherwise, the variable is unconditionally assigned the
764		value "no".
765		If not "no", ${MKBINUTILS}, ${MKGCC}, and ${MKGDB} are
766		unconditionally assigned the value "no".
767
768EXTERNAL_TOOLCHAIN
769		This variable is not directly set by <bsd.own.mk>, but
770		including <bsd.own.mk> is the canonical way to gain
771		access to this variable.  The variable should be defined
772		either in the user's environment or in the user's mk.conf
773		file.  If defined, this variable indicates the root of
774		an external toolchain which will be used to build the
775		tree.  For example, if a platform is a ${TOOLCHAIN_MISSING}
776		platform, EXTERNAL_TOOLCHAIN can be used to re-enable the
777		cross-compile framework.
778
779		If EXTERNAL_TOOLCHAIN is defined, ${MKGCC} is unconditionally
780		assigned the value "no", since the external version of the
781		compiler may not be able to build the library components of
782		the in-tree compiler.
783
784		NOTE: This variable is not yet used in as many places as
785		it should be.  Expect the exact semantics of this variable
786		to change in the short term as parts of the cross-compile
787		framework continue to be cleaned up.
788
789The following variables are defined to commands to perform the
790appropriate operation, with the default in [brackets].  Note that
791the defaults change if USETOOLS == "yes":
792
793TOOL_AMIGAAOUT2BB	aout to Amiga bootblock converter.  [amiga-aout2bb]
794
795TOOL_AMIGAELF2BB	ELF to Amiga bootblock converter.  [amiga-elf2bb]
796
797TOOL_AMIGATXLT		Amige assembly language format translator.  [amiga-txlt]
798
799TOOL_ASN1_COMPILE	ASN1 compiler.  [asn1_compile]
800
801TOOL_AWK		Pattern-directed scanning/processing language.  [awk]
802
803TOOL_CAP_MKDB		Create capability database.  [cap_mkdb]
804
805TOOL_CAT		Concatenate and print files.  [cat]
806
807TOOL_CKSUM		Display file checksums.  [cksum]
808
809TOOL_COMPILE_ET		Error table compiler.  [compile_et]
810
811TOOL_CONFIG		Build kernel compilation directories.  [config]
812
813TOOL_CRUNCHGEN		Generate crunched binary build environment.  [crunchgen]
814
815TOOL_CTAGS		Create a tags file.  [ctags]
816
817TOOL_DB			Manipulate db(3) databases.  [db]
818
819TOOL_DISKLABEL		Read and write disk pack label.  [disklabel]
820
821TOOL_EQN		Format equations for groff.  [eqn]
822
823TOOL_FDISK		MS-DOS partition maintenance program.  [fdisk]
824
825TOOL_FGEN		IEEE 1275 Open Firmware FCode Tokenizer.  [fgen]
826
827TOOL_GENASSYM		Generate constants for assembly files.  [genassym]
828
829TOOL_GENCAT		Generate NLS message catalogs.  [gencat]
830
831TOOL_GMAKE		GNU make utility.  [gmake]
832
833TOOL_GREP		Print lines matching a pattern.  [grep]
834
835TOOL_GROFF		Front end for groff document formatting system.  [groff]
836
837TOOL_GZIP		Compression/decompression tool.  [gzip]
838
839TOOL_GZIP_N		Same as TOOL_GZIP, plus a command line option to
840			prevent it from inserting file names or timestamps
841			into the compressed output.
842			[${TOOL_GZIP} ${GZIP_N_FLAG}]
843
844TOOL_HEXDUMP		Ascii, decimal, hexadecimal, octal dump.  [hexdump]
845
846TOOL_HP300MKBOOT	Make bootable image for hp300.  [hp300-mkboot]
847
848TOOL_HPPAMKBOOT		Make bootable image for hppa.  [hppa-mkboot]
849
850TOOL_INDXBIB		Make bibliographic database's inverted index.  [indxbib]
851
852TOOL_INSTALLBOOT	Install disk bootstrap software.  [installboot]
853
854TOOL_INSTALL_INFO	Update info/dir entries.  [install-info]
855
856TOOL_JOIN		Relational database operator.  [join]
857
858TOOL_M4			M4 macro language processor.  [m4]
859
860TOOL_MACPPCFIXCOFF	Fix up xcoff headers for macppc.  [macppc-fixcoff]
861
862TOOL_MAKEFS		Create file system image from directory tree.  [makefs]
863
864TOOL_MAKEINFO		Translate Texinfo documents.  [makeinfo]
865
866TOOL_MAKEWHATIS		Create a whatis.db database.  [makewhatis]
867
868TOOL_MDSETIMAGE		Set kernel RAM disk image.  [mdsetimage]
869
870TOOL_MENUC		Menu compiler.  [menuc]
871
872TOOL_MIPSELF2ECOFF	Convert ELF-format executable to ECOFF for mips.
873			[mips-elf2ecoff]
874
875TOOL_MKCSMAPPER		Make charset mapping table.  [mkcsmapper]
876
877TOOL_MKESDB		Make encoding scheme database.  [mkesdb]
878
879TOOL_MKLOCALE		Make LC_CTYPE locale files.  [mklocale]
880
881TOOL_MKMAGIC		Create database for file(1).  [file]
882
883TOOL_MKNOD		Make device special file.  [mknod]
884
885TOOL_MKTEMP		Make (unique) temporary file name.  [mktemp]
886
887TOOL_MSGC		Simple message list compiler.  [msgc]
888
889TOOL_MTREE		Map a directory hierarchy.  [mtree]
890
891TOOL_NCDCS		Turn ELF kernel into a NCD firmware image. [ncdcs]
892
893TOOL_PAX		Manipulate file archives and copy directories.  [pax]
894
895TOOL_PIC		Compile pictures for groff.  [pic]
896
897TOOL_PIGZ		Parallel compressor.  [pigz]
898
899TOOL_POWERPCMKBOOTIMAGE	Make bootable image for powerpc.  [powerpc-mkbootimage]
900
901TOOL_PWD_MKDB		Generate the password databases.  [pwd_mkdb]
902
903TOOL_REFER		Preprocess bibliographic references for groff.  [refer]
904
905TOOL_ROFF_ASCII		Generate ASCII groff output.  [nroff]
906
907TOOL_ROFF_DVI		Generate DVI groff output.  [${TOOL_GROFF} -Tdvi]
908
909TOOL_ROFF_HTML		Generate HTML groff output.
910			[${TOOL_GROFF} -Tlatin1 -mdoc2html]
911
912TOOL_ROFF_PS		Generate PS groff output.  [${TOOL_GROFF} -Tps]
913
914TOOL_ROFF_RAW		Generate "raw" groff output.  [${TOOL_GROFF} -Z]
915
916TOOL_RPCGEN		Remote Procedure Call (RPC) protocol compiler.  [rpcgen]
917
918TOOL_SED		Stream editor.  [sed]
919
920TOOL_SOELIM		Eliminate .so's from groff input.  [soelim]
921
922TOOL_SPARKCRC		Generate a crc suitable for use in a sparkive file.
923			[sparkcrc]
924
925TOOL_STAT		Display file status.  [stat]
926
927TOOL_STRFILE		Create a random access file for storing strings.
928			[strfile]
929
930TOOL_SUNLABEL		Read or modify a SunOS disk label.  [sunlabel]
931
932TOOL_TBL		Format tables for groff.  [tbl]
933
934TOOL_UUDECODE		Uudecode a binary file.  [uudecode]
935
936TOOL_VGRIND		Grind nice listings of programs.  [vgrind -f]
937
938TOOL_ZIC		Time zone compiler.  [zic]
939
940For each possible value of MACHINE_CPU, MACHINES.${MACHINE_CPU} contain a
941list of what ports can be built for it.  This keeps those definitions in
942centralized place.
943
944<bsd.own.mk> is generally useful when building your own Makefiles so that
945they use the same default owners etc. as the rest of the tree.
946
947
948=-=-=-=-=   bsd.clean.mk   =-=-=-=-=
949
950The include file <bsd.clean.mk> defines the clean and cleandir
951targets.  It uses the following variables:
952
953CLEANFILES	Files to remove for both the clean and cleandir targets.
954
955CLEANDIRFILES	Files to remove for the cleandir target, but not for
956		the clean target.
957
958MKCLEANSRC	Controls whether or not the clean and cleandir targets
959		will delete files from both the object directory,
960		${.OBJDIR}, and the source directory, ${.CURDIR}.
961
962		If MKCLEANSRC is set to "no", then the file names in
963		CLEANFILES or CLEANDIRFILES are interpreted relative
964		to the object directory, ${.OBJDIR}.  This is the
965		traditional behaviour.
966
967		If MKCLEANSRC is set to "yes", then the file deletion
968		is performed relative to both the object directory,
969		${.OBJDIR}, and the source directory, ${.CURDIR}.  (This
970		has no effect if ${.OBJDIR} is the same as ${.CURDIR}.)
971		Deleting files from ${.CURDIR} is intended to remove
972		stray output files that had been left in the source
973		directory by an earlier build that did not use object
974		directories.
975
976		The default is MKCLEANSRC=yes.  If you always build with
977		separate object directories, and you are sure that there
978		are no stray files in the source directories, then you
979		may set MKCLEANSRC=no to save some time.
980
981MKCLEANVERIFY	Controls whether or not the clean and cleandir targets
982		will verify that files have been deleted.
983
984		If MKCLEANVERIFY is set to "no", then the files will
985		be deleted using a "rm -f" command, and its success or
986		failure will be ignored.
987
988		If MKCLEANVERIFY is set to "yes", then the success of
989		the "rm -f" command will be verified using an "ls"
990		command.
991
992		The default is MKCLEANVERIFY=yes.  If you are sure that
993		there will be no problems caused by file permissions,
994		read-only file systems, or the like, then you may set
995		MKCLEANVERIFY=no to save some time.
996
997To use the clean and cleandir targets defined in <bsd.clean.mk>, other
998Makefiles or bsd.*.mk files should append file names to the CLEANFILES
999or CLEANDIRFILES variables.  For example:
1000
1001	    CLEANFILES+= a.out
1002	    CLEANDIRFILES+= .depend
1003
1004	    .include <bsd.clean.mk>
1005
1006The files listed in CLEANFILES and CLEANDIRFILES must not be
1007directories, because the potential risk from running "rm -rf" commands
1008in bsd.clean.mk is considered too great.  If you want to recursively
1009delete a directory as part of "make clean" or "make cleandir" then you
1010need to provide your own target.
1011
1012=-=-=-=-=   bsd.dep.mk   =-=-=-=-=
1013
1014The include file <bsd.dep.mk> contains the default targets for building
1015.depend files.  It creates .d files from entries in SRCS and DPSRCS
1016that are C, C++, or Objective C source files, and builds .depend from the
1017.d files.  All other files in SRCS and all of DPSRCS will be used as
1018dependencies for the .d files.  In order for this to function correctly,
1019it should be .included after all other .mk files and directives that may
1020modify SRCS or DPSRCS.  It uses the following variables:
1021
1022SRCS		List of source files to build the program.
1023
1024DPSRCS		List of source files which are needed for generating
1025		dependencies, but are not needed in ${SRCS}.
1026
1027
1028=-=-=-=-=   bsd.files.mk   =-=-=-=-=
1029
1030The include file <bsd.files.mk> handles the FILES variables and is included
1031from <bsd.lib.mk> and <bsd.prog.mk>, and uses the following variables:
1032
1033FILES		The list of files to install.
1034
1035CONFIGFILES	Similar semantics to FILES, except that the files
1036		are installed by the `configinstall' target,
1037		not the `install' target.
1038		The FILES* variables documented below also apply.
1039
1040FILESOWN	File owner.  [${BINOWN}]
1041
1042FILESGRP	File group.  [${BINGRP}]
1043
1044FILESMODE	File mode.  [${NONBINMODE}]
1045
1046FILESDIR	The location to install the files.
1047
1048FILESNAME	Optional name to install each file as.
1049
1050FILESOWN_<fn>	File owner of the specific file <fn>.
1051
1052FILESGRP_<fn>	File group of the specific file <fn>.
1053
1054FILESMODE_<fn>	File mode of the specific file <fn>.
1055
1056FILESDIR_<fn>	The location to install the specific file <fn>.
1057
1058FILESNAME_<fn>	Optional name to install <fn> as.
1059
1060FILESBUILD	If this variable is defined, then its value will be
1061		used as the default for all FILESBUILD_<fn> variables.
1062		Otherwise, the default will be "no".
1063
1064FILESBUILD_<fn>	A value different from "no" will add the file to the list of
1065		targets to be built by `realall'.  Users of that variable
1066		should provide a target to build the file.
1067
1068
1069BUILDSYMLINKS	List of two word items:
1070			lnsrc lntgt
1071		For each lnsrc item, create a symlink named lntgt.
1072		The lntgt symlinks are removed by the cleandir target.
1073
1074UUDECODE_FILES	List of files which are stored as <file>.uue in the source
1075		tree. Each one will be decoded with ${TOOL_UUDECODE}.
1076		The source files have a `.uue' suffix, the generated files do
1077		not.
1078
1079UUDECODE_FILES_RENAME_<fn>
1080		Rename the output from the decode to the provided name.
1081		
1082		*NOTE: These files are simply decoded, with no install or other
1083		       rule applying implicitly except being added to the clean
1084		       target.
1085
1086=-=-=-=-=   bsd.gcc.mk   =-=-=-=-=
1087
1088The include file <bsd.gcc.mk> computes various parameters related to GCC
1089support libraries.  It defines no targets.  <bsd.own.mk> MUST be included
1090before <bsd.gcc.mk>.
1091
1092The primary users of <bsd.gcc.mk> are <bsd.prog.mk> and <bsd.lib.mk>, each
1093of which need to know where to find certain GCC support libraries.
1094
1095The behavior of <bsd.gcc.mk> is influenced by the EXTERNAL_TOOLCHAIN variable,
1096which is generally set by the user.  If EXTERNAL_TOOLCHAIN it set, then
1097the compiler is asked where to find the support libraries, otherwise the
1098support libraries are found in ${DESTDIR}/usr/lib.
1099
1100<bsd.gcc.mk> sets the following variables:
1101
1102_GCC_CRTBEGIN	The full path name to crtbegin.o.
1103
1104_GCC_CRTBEGINS	The full path name to crtbeginS.o.
1105
1106_GCC_CRTEND	The full path name to crtend.o.
1107
1108_GCC_CRTENDS	The full path name to crtendS.o.
1109
1110_GCC_LIBGCCDIR	The directory where libgcc.a is located.
1111
1112
1113=-=-=-=-=   bsd.inc.mk   =-=-=-=-=
1114
1115The include file <bsd.inc.mk> defines the includes target and uses the
1116variables:
1117
1118INCS		The list of include files.
1119
1120INCSDIR		The location to install the include files.
1121
1122INCSNAME	Target name of the include file, if only one; same as
1123		FILESNAME, but for include files.
1124
1125INCSYMLINKS	Similar to SYMLINKS in <bsd.links.mk>, except that these
1126		are installed in the 'includes' target and not the
1127		(much later) 'install' target.
1128
1129INCSNAME_<file>	The name file <file> should be installed as, if not <file>,
1130		same as FILESNAME_<file>, but for include files.
1131
1132
1133=-=-=-=-=   bsd.info.mk   =-=-=-=-=
1134
1135The include file <bsd.info.mk> is used to generate and install GNU Info
1136documentation from respective Texinfo source files.  It defines three
1137implicit targets (.txi.info, .texi.info, and .texinfo.info), and uses the
1138following variables:
1139
1140TEXINFO		List of Texinfo source files.  Info documentation will
1141		consist of single files with the extension replaced by
1142		.info.
1143
1144INFOFLAGS	Flags to pass to makeinfo.  []
1145
1146
1147=-=-=-=-=   bsd.kernobj.mk   =-=-=-=-=
1148
1149The include file <bsd.kernobj.mk> defines variables related to the
1150location of kernel sources and object directories.
1151
1152KERNSRCDIR	Is the location of the top of the kernel src.
1153		[${_SRC_TOP_}/sys]
1154
1155KERNARCHDIR	Is the location of the machine dependent kernel sources.
1156		[arch/${MACHINE}]
1157
1158KERNCONFDIR	Is where the configuration files for kernels are found.
1159		[${KERNSRCDIR}/${KERNARCHDIR}/conf]
1160
1161KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
1162		instance will be compiled in ${KERNOBJDIR}/GENERIC.
1163		The default value is
1164		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
1165		if it exists or the target 'obj' is being made.
1166		Otherwise the default is
1167		${KERNSRCDIR}/${KERNARCHDIR}/compile.
1168
1169It is important that Makefiles (such as those under src/distrib) that
1170wish to find compiled kernels use <bsd.kernobj.mk> and ${KERNOBJDIR}
1171rather than make assumptions about the location of the compiled kernel.
1172
1173
1174=-=-=-=-=   bsd.kinc.mk   =-=-=-=-=
1175
1176The include file <bsd.kinc.mk> defines the many targets (includes,
1177subdirectories, etc.), and is used by kernel makefiles to handle
1178include file installation.  It is intended to be included alone, by
1179kernel Makefiles.  It uses similar variables to <bsd.inc.mk>.
1180Please see <bsd.kinc.mk> for more details, and keep the documentation
1181in that file up to date.
1182
1183=-=-=-=-=   bsd.syscall.mk =-=-=-=-=
1184
1185The include file <bsd.syscall.mk> contains the logic to create syscall
1186files for various emulations. It includes <bsd.kinc.mk> to handle the
1187rest of the targets.
1188
1189=-=-=-=-=   bsd.lib.mk   =-=-=-=-=
1190
1191The include file <bsd.lib.mk> has support for building libraries.  It has
1192the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
1193includes, install, lint, and tags.  Additionally, it has a checkver target
1194which checks for installed shared object libraries whose version is greater
1195that the version of the source. It has a limited number of suffixes,
1196consistent with the current needs of the BSD tree.  <bsd.lib.mk> includes
1197<bsd.shlib.mk> to get shared library parameters.
1198
1199It sets/uses the following variables:
1200
1201LIB		The name of the library to build.
1202
1203LIBDIR		Target directory for libraries.
1204
1205MKARZERO	Normally, ar(1) sets the timestamps, uid, gid and
1206		permissions in files inside its archives to those of
1207		the file it was fed. This leads to non-reproduceable
1208		builds. If MKARZERO is set to "yes" (default is the
1209		same as MKREPRO, or "no" if MKREPRO is not defined),
1210		then the "D" flag is passed to ar, causing the
1211		timestamp, uid and gid to be zeroed and the file
1212		permissions to be set to 644. This allows .a files
1213		from different builds to be bit identical.
1214
1215SHLIBINSTALLDIR	Target directory for shared libraries if ${USE_SHLIBDIR}
1216		is not "no".
1217
1218SHLIB_MAJOR
1219SHLIB_MINOR
1220SHLIB_TEENY	Major, minor, and teeny version numbers of shared library
1221
1222USE_SHLIBDIR	If not "no", use ${SHLIBINSTALLDIR} instead of ${LIBDIR}
1223		as the path to install shared libraries to.
1224		USE_SHLIBDIR must be defined before <bsd.own.mk> is included.
1225		Default: no
1226
1227LIBISMODULE	If not "no", install as ${LIB}.so (without the "lib" prefix),
1228		and act as "MKDEBUGLIB=no MKLINT=no MKPICINSTALL=no
1229		MKPROFILE=no MKSTATICLIB=no".
1230		Default: no
1231
1232LIBISPRIVATE	If not "no", act as "MKDEBUGLIB=no MKLINT=no MKPIC=no
1233		MKPROFILE=no", and don't install the (.a) library.
1234		This is useful for "build only" helper libraries.
1235		Default: no
1236
1237LIBISCXX	If not "no", Use ${CXX} instead of ${CC} to link
1238		shared libraries.
1239		This is useful for C++ libraries.
1240		Default: no
1241
1242LINTLIBDIR	Target directory for lint libraries.
1243
1244LIBGRP		Library group.
1245
1246LIBOWN		Library owner.
1247
1248LIBMODE		Library mode.
1249
1250LDADD		Additional loader objects.
1251
1252MAN		The manual pages to be installed (use a .1 - .9 suffix).
1253
1254NOCHECKVER_<library>
1255NOCHECKVER	If set, disables checking for installed shared object
1256		libraries with versions greater than the source.  A
1257		particular library name, without the "lib" prefix, may
1258		be appended to the variable name to disable the check for
1259		only that library.
1260
1261SRCS		List of source files to build the library.  Suffix types
1262		.s, .c, and .f are supported.  Note, .s files are preferred
1263		to .c files of the same name.  (This is not the default for
1264		versions of make.)
1265
1266LIBDPLIBS	A list of the tuples:
1267			libname  path-to-srcdir-of-libname
1268
1269		For each tuple;
1270		     *	LIBDO.libname contains the .OBJDIR of the library
1271			`libname', and if it is not set it is determined
1272			from the srcdir and added to MAKEOVERRIDES (the
1273			latter is to allow for build time optimization).
1274		     *	LDADD gets  -L${LIBDO.libname} -llibname    added.
1275		     *	DPADD gets  ${LIBDO.libname}/liblibname.so  or
1276				    ${LIBDO.libname}/liblibname.a   added.
1277
1278		The special value "_external" for LIBDO.lib makes the
1279		build system to assume the library comes from outside
1280		of the NetBSD source tree and only causes -llibname
1281		to be added to LDADD.
1282
1283		This variable may be used for individual libraries, as
1284		well as in parent directories to cache common libraries
1285		as a build-time optimization.
1286
1287The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
1288if it exists, as well as the include file <bsd.man.mk>.
1289
1290It has rules for building profiled objects; profiled libraries are
1291built by default.
1292
1293Libraries are ranlib'd when made.
1294
1295
1296=-=-=-=-=   bsd.links.mk   =-=-=-=-=
1297
1298The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
1299and is included from from <bsd.lib.mk> and <bsd.prog.mk>.
1300
1301LINKSOWN, LINKSGRP, and LINKSMODE, are relevant only if a metadata log
1302is used. The defaults may be modified by other bsd.*.mk files which
1303include bsd.links.mk.  In the future, these variables may be replaced
1304by a method for explicitly recording hard links in a metadata log.
1305
1306LINKS		The list of hard links, consisting of pairs of paths:
1307			source-file target-file
1308		${DESTDIR} is prepended to both paths before linking.
1309		For example, to link /bin/test and /bin/[, use:
1310			LINKS=/bin/test /bin/[
1311
1312CONFIGLINKS	Similar semantics to LINKS, except that the links
1313		are installed by the `configinstall' target,
1314		not the `install' target.
1315
1316SYMLINKS	The list of symbolic links, consisting of pairs of paths:
1317			source-file target-file
1318		${DESTDIR} is only prepended to target-file before linking.
1319		For example, to symlink /usr/bin/tar to /bin/tar resulting
1320		in ${DESTDIR}/usr/bin/tar -> /bin/tar:
1321			SYMLINKS=/bin/tar /usr/bin/tar
1322
1323CONFIGSYMLINKS	Similar semantics to SYMLINKS, except that the symbolic links
1324		are installed by the `configinstall' target,
1325		not the `install' target.
1326
1327LINKSOWN	Link owner.  [${BINOWN}]
1328
1329LINKSGRP	Link group.  [${BINGRP}]
1330
1331LINKSMODE	Link mode.  [${NONBINMODE}]
1332
1333LINKSOWN_<fn>	Link owner of the specific file <fn>.
1334
1335LINKSGRP_<fn>	Link group of the specific file <fn>.
1336
1337LINKSMODE_<fn>	Link mode of the specific file <fn>.
1338
1339
1340=-=-=-=-=   bsd.man.mk   =-=-=-=-=
1341
1342The include file <bsd.man.mk> handles installing manual pages and their
1343links.
1344
1345It has a three targets:
1346
1347	catinstall:
1348		Install the preformatted manual pages and their links.
1349	htmlinstall:
1350		Install the HTML manual pages and their links.
1351	maninstall:
1352		Install the manual page sources and their links.
1353
1354It sets/uses the following variables:
1355
1356MANDIR		Base path for manual installation.
1357
1358MANGRP		Manual group.
1359
1360MANOWN		Manual owner.
1361
1362MANMODE		Manual mode.
1363
1364MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
1365		or "/tahoe" for machine specific manual pages.
1366
1367MAN		The manual pages to be installed (use a .1 - .9 suffix).
1368
1369MLINKS		List of manual page links (using a .1 - .9 suffix).  The
1370		linked-to file must come first, the linked file second,
1371		and there may be multiple pairs.
1372
1373The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
1374it exists.
1375
1376
1377=-=-=-=-=   bsd.obj.mk   =-=-=-=-=
1378
1379The include file <bsd.obj.mk> defines targets related to the creation
1380and use of separated object and source directories.
1381
1382If an environment variable named MAKEOBJDIRPREFIX is set, make(1) uses
1383${MAKEOBJDIRPREFIX}${.CURDIR} as the name of the object directory if
1384it exists.  Otherwise make(1) looks for the existence of a
1385subdirectory (or a symlink to a directory) of the source directory
1386into which built targets should be placed.  If an environment variable
1387named MAKEOBJDIR is set, make(1) uses its value as the name of the
1388object directory; failing that, make first looks for a subdirectory
1389named "obj.${MACHINE}", and if that doesn't exist, it looks for "obj".
1390
1391Object directories are not created automatically by make(1) if they
1392don't exist; you need to run a separate "make obj".  (This will happen
1393during a top-level build if "MKOBJDIRS" is set to a value other than
1394"no").  When the source directory is a subdirectory of ${BSDSRCDIR} --
1395and this is determined by a simple string prefix comparison -- object
1396directories are created in a separate object directory tree, and a
1397symlink to the object directory in that tree is created in the source
1398directory; otherwise, "make obj" assumes that you're not in the main
1399source tree and that it's not safe to use a separate object tree.
1400
1401Several variables used by <bsd.obj.mk> control exactly what
1402directories and links get created during a "make obj":
1403
1404MAKEOBJDIR	If set, this is the component name of the object
1405		directory.
1406
1407OBJMACHINE	If this is set but MAKEOBJDIR is not set, creates
1408		object directories or links named "obj.${MACHINE}";
1409		otherwise, just creates ones named "obj".
1410
1411USR_OBJMACHINE  If set, and the current directory is a subdirectory of
1412		${BSDSRCDIR}, create object directory in the
1413		corresponding subdirectory of ${BSDOBJDIR}.${MACHINE};
1414		otherwise, create it in the corresponding subdirectory
1415		of ${BSDOBJDIR}
1416
1417BUILDID		If set, the contents of this variable are appended
1418		to the object directory name.  If OBJMACHINE is also
1419		set, ".${BUILDID}" is added after ".${MACHINE}".
1420
1421
1422=-=-=-=-=   bsd.prog.mk   =-=-=-=-=
1423
1424The include file <bsd.prog.mk> handles building programs from one or
1425more source files, along with their manual pages.  It has a limited number
1426of suffixes, consistent with the current needs of the BSD tree.
1427<bsd.prog.mk> includes <bsd.shlib.mk> to get shared library parameters.
1428
1429It has eight targets:
1430
1431	all:
1432		build the program and its manual page.  This also
1433		creates a GDB initialization file (.gdbinit) in
1434		the objdir.  The .gdbinit file sets the shared library
1435		prefix to ${DESTDIR} to facilitate cross-debugging.
1436	clean:
1437		remove the program, any object files and the files a.out,
1438		Errs, errs, mklog, and ${PROG}.core.
1439	cleandir:
1440		remove all of the files removed by the target clean, as
1441		well as .depend, tags, and any manual pages.
1442		`distclean' is a synonym for `cleandir'.
1443	depend:
1444		make the dependencies for the source files, and store
1445		them in the file .depend.
1446	includes:
1447		install any header files.
1448	install:
1449		install the program and its manual pages; if the Makefile
1450		does not itself define the target install, the targets
1451		beforeinstall and afterinstall may also be used to cause
1452		actions immediately before and after the install target
1453		is executed.
1454	lint:
1455		run lint on the source files
1456	tags:
1457		create a tags file for the source files.
1458
1459It sets/uses the following variables:
1460
1461BINGRP		Binary group.
1462
1463BINOWN		Binary owner.
1464
1465BINMODE		Binary mode.
1466
1467CLEANDIRFILES	Additional files to remove for the cleandir target.
1468
1469CLEANFILES	Additional files to remove for the clean and cleandir targets.
1470
1471CONFIGOPTS	Additional flags to config(1) when building kernels.
1472
1473COPTS		Additional flags to the compiler when creating C objects.
1474
1475COPTS.<fn>	Additional flags to the compiler when creating the
1476		C objects for <fn>.
1477		For <fn>.[ly], "<fn>.c" must be used.
1478
1479CPUFLAGS	Additional flags to the compiler/assembler to select
1480		CPU instruction set options, CPU tuning options, etc.
1481
1482CPUFLAGS.<fn>	Additional flags to the compiler/assembler for <fn>.
1483		For <fn>.[ly], "<fn>.c" must be used.
1484
1485CPPFLAGS	Additional flags to the C pre-processor.
1486
1487CPPFLAGS.<fn>	Additional flags to the C pre-processor for <fn>.
1488		For <fn>.[ly], "<fn>.c" must be used.
1489
1490GDBINIT		List of GDB initialization files to add to "source"
1491		directives in the .gdbinit file that is created in the
1492		objdir.
1493
1494LDADD		Additional loader objects.  Usually used for libraries.
1495		For example, to load with the compatibility and utility
1496		libraries, use:
1497
1498			LDADD+=-lutil -lcompat
1499
1500LDFLAGS		Additional linker flags (passed to ${CC} during link).
1501
1502LINKS		See <bsd.links.mk>
1503
1504OBJCOPTS	Additional flags to the compiler when creating ObjC objects.
1505
1506OBJCOPTS.<fn>	Additional flags to the compiler when creating the
1507		ObjC objects for <fn>.
1508		For <fn>.[ly], "<fn>.c" must be used.
1509
1510SYMLINKS	See <bsd.links.mk>
1511
1512MAN		Manual pages (should end in .1 - .9).  If no MAN variable is
1513		defined, "MAN=${PROG}.1" is assumed.
1514
1515PAXCTL_FLAGS	If defined, run paxctl(1) on the program binary after link
1516		time, with the value of this variable as args to paxctl(1).
1517
1518PAXCTL_FLAGS.${PROG} Custom override for PAXCTL_FLAGS.
1519
1520PROG		The name of the program to build.  If not supplied, nothing
1521		is built.
1522
1523PROG_CXX	If defined, the name of the program to build.  Also
1524		causes <bsd.prog.mk> to link the program with the C++
1525		compiler rather than the C compiler.  PROG_CXX overrides
1526		the value of PROG if PROG is also set.
1527
1528PROGNAME	The name that the above program will be installed as, if
1529		different from ${PROG}.
1530
1531SRCS		List of source files to build the program.  If SRCS is not
1532		defined, it's assumed to be ${PROG}.c.
1533
1534DPSRCS		List of source files which are needed for generating
1535		dependencies, but are not needed in ${SRCS}.
1536
1537DPADD		Additional dependencies for the program.  Usually used for
1538		libraries.  For example, to depend on the compatibility and
1539		utility libraries use:
1540
1541			DPADD+=${LIBCOMPAT} ${LIBUTIL}
1542
1543		The following system libraries are predefined for DPADD:
1544
1545		LIBARCHIVE?=	${DESTDIR}/usr/lib/libarchive.a
1546		LIBASN1?=	${DESTDIR}/usr/lib/libasn1.a
1547		LIBATF_C?=	${DESTDIR}/usr/lib/libatf-c.a
1548		LIBATF_CXX?=	${DESTDIR}/usr/lib/libatf-c++.a
1549		LIBBIND9?=	${DESTDIR}/usr/lib/libbind9.a
1550		LIBBLUETOOTH?=	${DESTDIR}/usr/lib/libbluetooth.a
1551		LIBBSDMALLOC?=	${DESTDIR}/usr/lib/libbsdmalloc.a
1552		LIBBZ2?=	${DESTDIR}/usr/lib/libbz2.a
1553		LIBC?=		${DESTDIR}/usr/lib/libc.a
1554		LIBCOMPAT?=	${DESTDIR}/usr/lib/libcompat.a
1555		LIBCOM_ERR?=	${DESTDIR}/usr/lib/libcom_err.a
1556		LIBCRT0?=	${DESTDIR}/usr/lib/crt0.o
1557		LIBCRTI?=	${DESTDIR}/usr/lib/crti.o
1558		LIBCRYPT?=	${DESTDIR}/usr/lib/libcrypt.a
1559		LIBCRYPTO?=	${DESTDIR}/usr/lib/libcrypto.a
1560		LIBCRYPTO_IDEA?=${DESTDIR}/usr/lib/libcrypto_idea.a
1561		LIBCRYPTO_MDC2?=${DESTDIR}/usr/lib/libcrypto_mdc2.a
1562		LIBCRYPTO_RC5?=	${DESTDIR}/usr/lib/libcrypto_rc5.a
1563		LIBCURSES?=	${DESTDIR}/usr/lib/libcurses.a
1564		LIBC_PIC?=	${DESTDIR}/usr/lib/libc_pic.a
1565		LIBDBM?=	${DESTDIR}/usr/lib/libdbm.a
1566		LIBDES?=	${DESTDIR}/usr/lib/libdes.a
1567		LIBDNS?=	${DESTDIR}/usr/lib/libdns.a
1568		LIBEDIT?=	${DESTDIR}/usr/lib/libedit.a
1569		LIBEVENT?=	${DESTDIR}/usr/lib/libevent.a
1570		LIBEVENT_OPENSSL?=	${DESTDIR}/usr/lib/libevent_openssl.a
1571		LIBEVENT_PTHREADS?=	${DESTDIR}/usr/lib/libevent_pthreads.a
1572		LIBEXECINFO?=	${DESTDIR}/usr/lib/libexecinfo.a
1573		LIBEXPAT?=	${DESTDIR}/usr/lib/libexpat.a
1574		LIBFETCH?=	${DESTDIR}/usr/lib/libfetch.a
1575		LIBFORM?=	${DESTDIR}/usr/lib/libform.a
1576		LIBFL?=		${DESTDIR}/usr/lib/libfl.a
1577		LIBG2C?=	${DESTDIR}/usr/lib/libg2c.a
1578		LIBGCC?=	${DESTDIR}/usr/lib/libgcc.a
1579		LIBGNUMALLOC?=	${DESTDIR}/usr/lib/libgnumalloc.a
1580		LIBGSSAPI?=	${DESTDIR}/usr/lib/libgssapi.a
1581		LIBHDB?=	${DESTDIR}/usr/lib/libhdb.a
1582		LIBHEIMBASE?=	${DESTDIR}/usr/lib/libheimbase.a
1583		LIBHEIMNTLM?=	${DESTDIR}/usr/lib/libheimntlm.a
1584		LIBHX500?=	${DESTDIR}/usr/lib/libhx500.a
1585		LIBINTL?=	${DESTDIR}/usr/lib/libintl.a
1586		LIBIPSEC?=	${DESTDIR}/usr/lib/libipsec.a
1587		LIBISC?=	${DESTDIR}/usr/lib/libisc.a
1588		LIBISCCC?=	${DESTDIR}/usr/lib/libisccc.a
1589		LIBISCFG?=	${DESTDIR}/usr/lib/libiscfg.a
1590		LIBKADM5CLNT?=	${DESTDIR}/usr/lib/libkadm5clnt.a
1591		LIBKADM5SRV?=	${DESTDIR}/usr/lib/libkadm5srv.a
1592		LIBKAFS?=	${DESTDIR}/usr/lib/libkafs.a
1593		LIBKRB5?=	${DESTDIR}/usr/lib/libkrb5.a
1594		LIBKVM?=	${DESTDIR}/usr/lib/libkvm.a
1595		LIBL?=		${DESTDIR}/usr/lib/libl.a
1596		LIBLBER?=	${DESTDIR}/usr/lib/liblber.a
1597		LIBLDAP?=	${DESTDIR}/usr/lib/libldap.a
1598		LIBLDAP_R?=	${DESTDIR}/usr/lib/libldap_r.a
1599		LIBLUA?=	${DESTDIR}/usr/lib/liblua.a
1600		LIBLUTOK?=	${DESTDIR}/usr/lib/liblutok.a
1601		LIBLWRES?=	${DESTDIR}/usr/lib/liblwres.a
1602		LIBM?=		${DESTDIR}/usr/lib/libm.a
1603		LIBMAGIC?=	${DESTDIR}/usr/lib/libmagic.a
1604		LIBMENU?=	${DESTDIR}/usr/lib/libmenu.a
1605		LIBOBJC?=	${DESTDIR}/usr/lib/libobjc.a
1606		LIBOSSAUDIO?=	${DESTDIR}/usr/lib/libossaudio.a
1607		LIBPAM?=	${DESTDIR}/usr/lib/libpam.a
1608		LIBPANEL?=	${DESTDIR}/usr/lib/libpanel.a
1609		LIBPCAP?=	${DESTDIR}/usr/lib/libpcap.a
1610		LIBPCI?=	${DESTDIR}/usr/lib/libpci.a
1611		LIBPMC?=	${DESTDIR}/usr/lib/libpmc.a
1612		LIBPOSIX?=	${DESTDIR}/usr/lib/libposix.a
1613		LIBPTHREAD?=	${DESTDIR}/usr/lib/libpthread.a
1614		LIBPTHREAD_DBG?=${DESTDIR}/usr/lib/libpthread_dbg.a
1615		LIBPUFFS?=	${DESTDIR}/usr/lib/libpuffs.a
1616		LIBQUOTA?=	${DESTDIR}/usr/lib/libquota.a
1617		LIBRADIUS?=	${DESTDIR}/usr/lib/libradius.a
1618		LIBRESOLV?=	${DESTDIR}/usr/lib/libresolv.a
1619		LIBRMT?=	${DESTDIR}/usr/lib/librmt.a
1620		LIBROKEN?=	${DESTDIR}/usr/lib/libroken.a
1621		LIBRPCSVC?=	${DESTDIR}/usr/lib/librpcsvc.a
1622		LIBRT?=		${DESTDIR}/usr/lib/librt.a
1623		LIBRUMP?=	${DESTDIR}/usr/lib/librump.a
1624		LIBRUMPFS_CD9660FS?=${DESTDIR}/usr/lib/librumpfs_cd9660fs.a
1625		LIBRUMPFS_EFS?=	${DESTDIR}/usr/lib/librumpfs_efs.a
1626		LIBRUMPFS_EXT2FS?=${DESTDIR}/usr/lib/librumpfs_ext2fs.a
1627		LIBRUMPFS_FFS?=	${DESTDIR}/usr/lib/librumpfs_ffs.a
1628		LIBRUMPFS_HFS?=	${DESTDIR}/usr/lib/librumpfs_hfs.a
1629		LIBRUMPFS_LFS?=	${DESTDIR}/usr/lib/librumpfs_lfs.a
1630		LIBRUMPFS_MSDOSFS?=${DESTDIR}/usr/lib/librumpfs_msdosfs.a
1631		LIBRUMPFS_NFS?=	${DESTDIR}/usr/lib/librumpfs_nfs.a
1632		LIBRUMPFS_NTFS?=${DESTDIR}/usr/lib/librumpfs_ntfs.a
1633		LIBRUMPFS_SYSPUFFS?=${DESTDIR}/usr/lib/librumpfs_syspuffs.a
1634		LIBRUMPFS_TMPFS?=${DESTDIR}/usr/lib/librumpfs_tmpfs.a
1635		LIBRUMPFS_UDF?=	${DESTDIR}/usr/lib/librumpfs_udf.a
1636		LIBRUMPFS_UFS?=	${DESTDIR}/usr/lib/librumpfs_ufs.a
1637		LIBRUMPUSER?=	${DESTDIR}/usr/lib/librumpuser.a
1638		LIBSASLC?=	${DESTDIR}/usr/lib/libsaslc.a
1639		LIBSKEY?=	${DESTDIR}/usr/lib/libskey.a
1640		LIBSL?=		${DESTDIR}/usr/lib/libsl.a
1641		LIBSQLITE3?=	${DESTDIR}/usr/lib/libsqlite3.a
1642		LIBSS?=		${DESTDIR}/usr/lib/libss.a
1643		LIBSSH?=	${DESTDIR}/usr/lib/libssh.a
1644		LIBSSL?=	${DESTDIR}/usr/lib/libssl.a
1645		LIBSSP?=	${DESTDIR}/usr/lib/libssp.a
1646		LIBSTDCXX?=	${DESTDIR}/usr/lib/libstdc++.a
1647		LIBSUPCXX?=	${DESTDIR}/usr/lib/libsupc++.a
1648		LIBTERMINFO?=	${DESTDIR}/usr/lib/libterminfo.a
1649		LIBTRE?=	${DESTDIR}/usr/lib/libtre.a
1650		LIBUNBOUND?=	${DESTDIR}/usr/lib/libunbound.a
1651		LIBUSBHID?=	${DESTDIR}/usr/lib/libusbhid.a
1652		LIBUTIL?=	${DESTDIR}/usr/lib/libutil.a
1653		LIBWIND?=	${DESTDIR}/usr/lib/libwind.a
1654		LIBWRAP?=	${DESTDIR}/usr/lib/libwrap.a
1655		LIBY?=		${DESTDIR}/usr/lib/liby.a
1656		LIBZ?=		${DESTDIR}/usr/lib/libz.a
1657
1658		The following X-Windows libraries are predefined for DPADD:
1659
1660		LIBFS?=		${DESTDIR}/usr/X11R7/lib/libFS.a
1661		LIBGL?=		${DESTDIR}/usr/X11R7/lib/libGL.a
1662		LIBGLU?=	${DESTDIR}/usr/X11R7/lib/libGLU.a
1663		LIBICE?=	${DESTDIR}/usr/X11R7/lib/libICE.a
1664		LIBSM?=		${DESTDIR}/usr/X11R7/lib/libSM.a
1665		LIBX11?=	${DESTDIR}/usr/X11R7/lib/libX11.a
1666		LIBX11_XCB?=	${DESTDIR}/usr/X11R7/lib/libX11-xcb.a
1667		LIBXTRAP?=	${DESTDIR}/usr/X11R7/lib/libXTrap.a
1668		LIBXAU?=	${DESTDIR}/usr/X11R7/lib/libXau.a
1669		LIBXAW?=	${DESTDIR}/usr/X11R7/lib/libXaw.a
1670		LIBXCB?=	${DESTDIR}/usr/X11R7/lib/libxcb.a
1671		LIBXDMCP?=	${DESTDIR}/usr/X11R7/lib/libXdmcp.a
1672		LIBXEXT?=	${DESTDIR}/usr/X11R7/lib/libXext.a
1673		LIBXFONT?=	${DESTDIR}/usr/X11R7/lib/libXfont.a
1674		LIBXFT?=	${DESTDIR}/usr/X11R7/lib/libXft.a
1675		LIBXI?=		${DESTDIR}/usr/X11R7/lib/libXi.a
1676		LIBXINERAMA?=	${DESTDIR}/usr/X11R7/lib/libXinerama.a
1677		LIBXMU?=	${DESTDIR}/usr/X11R7/lib/libXmu.a
1678		LIBXMUU?=	${DESTDIR}/usr/X11R7/lib/libXmuu.a
1679		LIBXPM?=	${DESTDIR}/usr/X11R7/lib/libXpm.a
1680		LIBXRANDR?=	${DESTDIR}/usr/X11R7/lib/libXrandr.a
1681		LIBXRENDER?=	${DESTDIR}/usr/X11R7/lib/libXrender.a
1682		LIBXSS?=	${DESTDIR}/usr/X11R7/lib/libXss.a
1683		LIBXT?=		${DESTDIR}/usr/X11R7/lib/libXt.a
1684		LIBXTST?=	${DESTDIR}/usr/X11R7/lib/libXtst.a
1685		LIBXV?=		${DESTDIR}/usr/X11R7/lib/libXv.a
1686		LIBXXF86DGA?=	${DESTDIR}/usr/X11R7/lib/libXxf86dga.a
1687		LIBXXF86MISC?=	${DESTDIR}/usr/X11R7/lib/libXxf86misc.a
1688		LIBXXF86VM?=	${DESTDIR}/usr/X11R7/lib/libXxf86vm.a
1689		LIBDPS?=	${DESTDIR}/usr/X11R7/lib/libdps.a
1690		LIBFNTSTUBS?=	${DESTDIR}/usr/X11R7/lib/libfntstubs.a
1691		LIBFONTCACHE?=	${DESTDIR}/usr/X11R7/lib/libfontcache.a
1692		LIBFONTCONFIG?=	${DESTDIR}/usr/X11R7/lib/libfontconfig.a
1693		LIBFONTENC?=	${DESTDIR}/usr/X11R7/lib/libfontenc.a
1694		LIBFREETYPE?=	${DESTDIR}/usr/X11R7/lib/libfreetype.a
1695		LIBLBXUTIL?=	${DESTDIR}/usr/X11R7/lib/liblbxutil.a
1696		LIBXKBFILE?=	${DESTDIR}/usr/X11R7/lib/libxkbfile.a
1697
1698SHAREDSTRINGS	If defined, a new .c.o rule is used that results in shared
1699		strings, using xstr(1). Note that this will not work with
1700		parallel makes.
1701
1702STRIPFLAG	The flag passed to the install program to cause the binary
1703		to be stripped.
1704
1705SUBDIR		A list of subdirectories that should be built as well.
1706		Each of the targets will execute the same target in the
1707		subdirectories.
1708
1709SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
1710		These are installed exactly like programs.
1711
1712SCRIPTSDIR	The location to install the scripts.  Each script can be
1713		installed to a separate path by setting SCRIPTSDIR_<script>.
1714
1715SCRIPTSNAME	The name that the above program will be installed as, if
1716		different from ${SCRIPTS}. These can be further specialized
1717		by setting SCRIPTSNAME_<script>.
1718
1719FILES		See description of <bsd.files.mk>.
1720
1721SHLINKDIR	Target directory for shared linker.  See description of
1722		<bsd.own.mk> for additional information about this variable.
1723
1724The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
1725if it exists, as well as the include file <bsd.man.mk>.
1726
1727Some simple examples:
1728
1729To build foo from foo.c with a manual page foo.1, use:
1730
1731	PROG=	foo
1732
1733	.include <bsd.prog.mk>
1734
1735To build foo from foo.c with a manual page foo.2, add the line:
1736
1737	MAN=	foo.2
1738
1739If foo does not have a manual page at all, add the line:
1740
1741	MKMAN=	no
1742
1743If foo has multiple source files, add the line:
1744
1745	SRCS=	a.c b.c c.c d.c
1746
1747
1748=-=-=-=-=   bsd.rpc.mk   =-=-=-=-=
1749
1750The include file <bsd.rpc.mk> contains a makefile fragment used to
1751construct source files built by rpcgen.
1752
1753The following macros may be defined in makefiles which include
1754<bsd.rpc.mk> in order to control which files get built and how they
1755are to be built:
1756
1757RPC_INCS:	construct .h file from .x file
1758RPC_XDRFILES:	construct _xdr.c from .x file
1759		(for marshalling/unmarshalling data types)
1760RPC_SVCFILES:	construct _svc.c from .x file
1761		(server-side stubs)
1762RPC_SVCFLAGS:	Additional flags passed to builds of RPC_SVCFILES.
1763
1764RPC_XDIR:	Directory containing .x/.h files
1765
1766
1767=-=-=-=-=   bsd.shlib.mk   =-=-=-=-=
1768
1769The include file <bsd.shlib.mk> computes parameters for shared library
1770installation and use.  It defines no targets.  <bsd.own.mk> MUST be
1771included before <bsd.shlib.mk>.
1772
1773<bsd.own.mk> sets the following variables, if they are not already defined
1774(defaults are in brackets):
1775
1776SHLIBINSTALLDIR	If ${USE_SHLIBDIR} is not "no", use ${SHLIBINSTALLDIR}
1777		instead of ${LIBDIR} as the base path for shared library
1778		installation.  [/lib]
1779
1780SHLIBDIR	The path to USE_SHLIBDIR shared libraries to use when building
1781		a program.  [/lib for programs in /bin and /sbin, /usr/lib
1782		for all others.]
1783
1784_LIBSODIR	Set to ${SHLIBINSTALLDIR} if ${USE_SHLIBDIR} is not "no",
1785		otherwise set to ${LIBDIR}
1786
1787SHLINKINSTALLDIR Base path for shared linker.  [/libexec]
1788
1789SHLINKDIR	Path to use for shared linker when building a program.
1790		[/libexec for programs in /bin and /sbin, /usr/libexec for
1791		all others.]
1792
1793
1794=-=-=-=-=   bsd.subdir.mk   =-=-=-=-=
1795
1796The include file <bsd.subdir.mk> contains the default targets for building
1797subdirectories.  It has the same eight targets as <bsd.prog.mk>: all,
1798clean, cleandir, depend, includes, install, lint, and tags.  It uses the
1799following variables:
1800
1801NOSUBDIR	If this variable is defined, then the SUBDIR variable
1802		will be ignored and subdirectories will not be processed.
1803
1804SUBDIR		For all of the directories listed in ${SUBDIR}, the
1805		specified directory will be visited and the target made.
1806
1807		As a special case, the use of a token .WAIT as an
1808		entry in SUBDIR acts as a synchronization barrier
1809		when multiple make jobs are run; subdirs before the
1810		.WAIT must complete before any subdirs after .WAIT are
1811		started.  See make(1) for some caveats on use of .WAIT
1812		and other special sources.
1813
1814
1815=-=-=-=-=   bsd.x11.mk   =-=-=-=-=
1816
1817The include file <bsd.x11.mk> contains parameters and targets for
1818cross-building X11 from ${X11SRCDIR.<package>}.  It should be included
1819after the general Makefile contents but before the include files such as
1820<bsd.prog.mk> and <bsd.lib.mk>.
1821
1822It provides the following targets:
1823	.man.1 .man.3 .man.4 .man.5 .man.7:
1824		If ${MAN} or ${PROG} is set and ${MKMAN} != "no",
1825		these rules convert from X11's manual page source
1826		into an mdoc.old source file.
1827
1828It sets the following variables:
1829
1830BINDIR			Set to ${X11BINDIR}.
1831			To override, define after including <bsd.x11.mk>
1832
1833LIBDIR			Set to ${X11USRLIBDIR}.
1834			To override, define after including <bsd.x11.mk>
1835
1836MANDIR			Set to ${X11MANDIR}.
1837			To override, define after including <bsd.x11.mk>
1838
1839CPPFLAGS		Appended with definitions to include from
1840			${DESTDIR}${X11INCDIR}
1841
1842LDFLAGS			Appended with definitions to link from
1843			${DESTDIR}${X11USRLIBDIR}
1844
1845X11FLAGS.CONNECTION	Equivalent to X11's CONNECTION_FLAGS.
1846
1847X11FLAGS.EXTENSION	Equivalent to X11's EXT_DEFINES.
1848
1849X11FLAGS.LOADABLE	Equivalent to X11's LOADABLE.
1850
1851X11FLAGS.OS_DEFINES	Equivalent to X11's OS_DEFINES.
1852
1853X11FLAGS.SERVER		Equivalent to X11's ServerDefines.
1854
1855X11FLAGS.THREADLIB	Equivalent to X11's THREADS_DEFINES for libraries.
1856
1857X11FLAGS.THREADS	Equivalent to X11's THREADS_DEFINES.
1858
1859X11FLAGS.VERSION	cpp(1) definitions of OSMAJORVERSION and OSMINORVERSION.
1860
1861X11FLAGS.DIX		Equivalent to X11's DIX_DEFINES.
1862
1863X11TOOL_UNXCOMM		Commandline to convert `XCOMM' comments to `#'
1864
1865It uses the following variables:
1866
1867APPDEFS			List of app-default files to install.
1868
1869CPPSCRIPTS		List of files/scripts to run through cpp(1)
1870			and then ${X11TOOL_UNXCOMM}.  The source files
1871			have a `.cpp' suffix, the generated files do not.
1872
1873CPPSCRIPTFLAGS		Additional flags to cpp(1) when building CPPSCRIPTS.
1874
1875CPPSCRIPTFLAGS_<fn>	Additional flags to cpp(1) when building CPPSCRIPT <fn>.
1876
1877
1878=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1879
1880The following files are described here for completion, but they are not
1881supposed to be included directly from other Makefiles; they are used
1882internally by other system files.
1883
1884=-=-=-=-=   bsd.sys.mk   =-=-=-=-=
1885
1886The include file <bsd.sys.mk> is used by other system mk files and
1887it is not intended to be included standalone. It contains rules and
1888system build variables. It requires bsd.own.mk to be included first.
1889It contains overrides that are used when building the NetBSD source tree.
1890
1891The following variables control how various files are compiled/built.
1892(Note that these may be overridden in <bsd.own.mk> if USETOOLS == "yes"):
1893
1894AR		Create, modify, and extract from archives.  [ar]
1895
1896ARFLAGS		Options to ${AR}.  [rl]
1897
1898AS		Assembler.  [as]
1899
1900AFLAGS		Options to ${CC} when compiling or linking .s or .S
1901		assembly source files.  []
1902
1903BUILDSEED	GCC uses random numbers when compiling C++ code.
1904		If this option is present, seed the random number
1905		generator based on the value, source file names and
1906		the output file name to make builds more deterministic.
1907		Additional information is available in the GCC
1908		documentation of -frandom-seed.
1909
1910CC		C compiler.  [cc]
1911
1912CFLAGS		Options to ${CC}.  [Usually -O or -O2]
1913
1914CPP		C Pre-Processor.  [cpp]
1915
1916CPPFLAGS	Options to ${CPP}.  []
1917
1918CPUFLAGS	Optimization flags for ${CC}.  []
1919
1920CXX		C++ compiler.  [c++]
1921
1922CXXFLAGS	Options to ${CXX}.  [${CFLAGS}]
1923
1924ELF2ECOFF	Convert ELF-format executable to ECOFF.  [elf2ecoff]
1925
1926FC		Fortran compiler.  [f77]
1927
1928FFLAGS		Options to {$FC}.  [-O]
1929
1930HOST_SH		Shell.	This must be an absolute path, because it may be
1931		substituted into "#!" lines in scripts.	 [/bin/sh]
1932
1933INSTALL		install(1) command.  [install]
1934
1935LEX		Lexical analyzer.  [lex]
1936
1937LFLAGS		Options to ${LEX}.  []
1938
1939LPREFIX		Symbol prefix for ${LEX} (see -P option in lex(1)) [yy]
1940
1941LD		Linker.  [ld]
1942
1943LDFLAGS		Options to ${CC} during the link process.  []
1944
1945LINT		C program verifier.  [lint]
1946
1947LINTFLAGS	Options to ${LINT}.  [-chapbxzgFS]
1948
1949LORDER		List dependencies for object files.  [lorder]
1950
1951MAKE		make(1).  [make]
1952
1953MKDEP		Construct Makefile dependency list.  [mkdep]
1954
1955MKDEPCXX	Construct Makefile dependency list for C++ files.  [mkdep]
1956
1957NM		List symbols from object files.  [nm]
1958
1959PC		Pascal compiler.  [pc]  (Not present)
1960
1961PFLAGS		Options to ${PC}.  []
1962
1963OBJC		Objective C compiler.  [${CC}]
1964
1965OBJCFLAGS	Options to ${OBJC}.  [${CFLAGS}]
1966
1967OBJCOPY		Copy and translate object files.  [objcopy]
1968
1969OBJCOPYLIBFLAGS	Flags to pass to objcopy when library objects are
1970		being built. [${.TARGET} =~ "*.po" ? -X : -x]
1971
1972OBJDUMP		Display information from object files.  [objdump]
1973
1974RANLIB		Generate index to archive.  [ranlib]
1975
1976READELF		Display information from ELF object files.  [readelf]
1977
1978SIZE		List section sizes and total size.  [size]
1979
1980STRINGS		Display printable character sequences in files.  [strings]
1981
1982STRIP		Discard symbols from object files.  [strip]
1983
1984TSORT		Topological sort of a directed graph.  [tsort -q]
1985
1986YACC		LALR(1) parser generator.  [yacc]
1987
1988YFLAGS		Options to ${YACC}.  []
1989
1990YHEADER		If defined, add "-d" to YFLAGS, and add dependencies
1991		from <file>.y to <file>.h and <file>.c, and add
1992		<foo>.h to CLEANFILES.
1993
1994YPREFIX		If defined, add "-p ${YPREFIX}" to YFLAGS.
1995
1996
1997Other variables of note (incomplete list):
1998
1999NOGCCERROR	If defined, prevents passing certain ${CFLAGS} to GCC
2000		that cause warnings to be fatal, such as:
2001			-Werror -Wa,--fatal-warnings
2002		(The latter being for as(1).)
2003
2004NOCLANGERROR	If defined and clang is used as C compiler, -Werror is not
2005		passed to it.
2006
2007WARNS		Crank up compiler warning options; the distinct levels are:
2008			WARNS=1
2009			WARNS=2
2010			WARNS=3
2011			WARNS=4
2012			WARNS=5
2013			WARNS=6
2014
2015=-=-=-=-=   bsd.host.mk  =-=-=-=-=
2016
2017This file is automatically included from bsd.own.mk. It contains settings
2018for all the HOST_* variables that are used in host programs and libraries.
2019
2020HOST_AR			The host archive processing command
2021
2022HOST_CC			The host c compiler
2023
2024HOST_CFLAGS		The host c compiler flags
2025
2026HOST_COMPILE.c		The host c compiler line with flags
2027
2028HOST_COMPILE.cc		The host c++ compiler line with flags
2029
2030HOST_CPP		The host c pre-processor
2031
2032HOST_CPPFLAGS		The cost c pre-processor flags
2033
2034HOST_CXX		The host c++ compiler
2035
2036HOST_CXXFLAGS		The host c++ compiler flags
2037
2038HOST_INSTALL_DIR	The host command to install a directory
2039
2040HOST_INSTALL_FILE	The host command to install a file
2041
2042HOST_INSTALL_SYMLINK	The host command to install a symlink
2043
2044HOST_LD			The host linker command
2045
2046HOST_LDFLAGS		The host linker flags
2047
2048HOST_LINK.c		The host c linker line with flags
2049
2050HOST_LINK.cc		The host c++ linker line with flags
2051
2052HOST_LN			The host command to link two files
2053
2054HOST_MKDEP		The host command to create dependencies for c programs
2055
2056HOST_MKDEPCXX		The host command to create dependencies for c++ programs
2057
2058HOST_OSTYPE		The host OSNAME-RELEASE-ARCH tupple
2059
2060HOST_RANLIB		The host command to create random access archives
2061
2062HOST_SH			The host Bourne shell interpreter name (absolute path)
2063
2064=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
2065