bsd.README revision 1.355
1#	$NetBSD: bsd.README,v 1.355 2016/08/20 11:23:33 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
325MKOBJ		If "no", don't enable the rule which creates objdirs,
326		and also acts as "MKOBJDIRS=no".
327		Default: yes
328
329MKOBJDIRS	If "no", don't create objdirs during a "make build".
330		Default: no
331
332MKPAM		If "no", disables building of PAM authentication
333		infrastructure (libraries and support programs).
334		Default: yes
335
336MKPCC		If "no", don't build pcc(1) or any of the PCC-related
337		libraries (libpcc, libpccsoftfloat).
338		Default: no
339
340MKPF		If "no", don't build or install the pf programs and LKM.
341		Default: yes
342
343MKPIC		If "no", don't build or install shared libraries, and
344		also acts as "MKPICLIB=no"
345		Default: yes (for MACHINE_ARCHs that support it)
346
347MKPICINSTALL	If "no", don't install the *_pic.a libraries.
348		Default: yes
349
350MKPICLIB	If "no", don't build *_pic.a libraries, and build the
351		shared object libraries from the .a libraries.
352		A symlink is installed in ${DESTDIR}/usr/lib for the
353		_pic.a library pointing to the .a library.
354		Default: yes
355
356MKPIE		If "no", create regular executables. Otherwise create
357		PIE (Position Independent Executables).
358		Default: no
359
360NOPIE		Don't create PIE (Position Independent Executables)
361		It is set internally for standalone programs.
362
363MKPIGZGZIP	If "no", only install pigz as pigz, not gzip.
364		Default: no
365
366MKPOSTFIX	If "no", don't build or install postfix(1).
367		Default: yes
368
369MKPROFILE	If "no", don't build or install the profiling (*_p.a) libraries.
370		Default: yes
371
372MKRADEONFIRMWARE If "no", install the /libdata/firmware/radeon directory,
373		which is necessary for the radeon DRM driver.
374		Default: yes on i386 and amd64, no elsewhere.
375
376MKRELRO		If "partial", set the non-PLT GOT to read-only. If "full"
377		also force immediate symbol binding.
378		Default: no
379	
380MKREPRO         If "yes", create reproducable builds. This enables
381		different switches to make two builds from the same source tree
382		result in the same build results.
383		Default: no
384
385MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
386		MKMAN=no MKNLS=no".
387		I.e, don't build catman pages, documentation, Info
388		documentation, man pages, NLS files, ...
389		Default: yes
390
391MKSKEY		If "no", disables building of S/key authentication
392		infrastructure (libraries and support programs).
393		Default: yes
394
395MKSLJIT		If "no", disables building of sljit (stack-less platform
396		independent JIT compiler) private library and tests.
397		Default: yes on amd64, i386 and sparc, no elsewhere.
398
399MKSOFTFLOAT	If not "no", build with options to enable the compiler to
400		generate output containing library calls for floating
401		point and possibly soft-float library support.
402		Default: no
403
404MKSTATICLIB	If "no", don't build or install the normal static (*.a)
405		libraries.
406		Default: yes
407
408MKTOOLSDEBUG	If "yes" build the tools with debugging symbols.
409		Default: no
410
411MKTPM		If "no" then don't build the Trusted Platform Module
412		infrastructure.
413		Default: no
414
415MKUNBOUND	If not "no", build and install the "unbound" DNS resolver.
416
417MKUNPRIVED	If not "no", don't set the owner/group/mode when installing
418		files or directories, and keep a metadata log of what
419		the owner/group/mode should be.  This allows a
420		non-root "make install".
421		Default: no
422
423MKUPDATE 	If not "no", 'make install' only installs targets that are
424		more recently modified in the source directories that their
425		installed counterparts.
426		Default: no
427
428MKX11		If not "no", 'make build' also descends into 
429		src/external/mit/xorg to cross-build X11 and automatically
430		enables creation of X sets.
431		Default: no
432
433MKX11FONTS	If not "no", do not build or install the X fonts.  The xfont
434		set is still created but will be empty.
435		Default: yes
436
437MKX11MOTIF:	If "yes", build the native X11 libGLw with Motif stubs.  If
438		Motif is not installed in the default location /usr/pkg, the
439		location can be specified using the X11MOTIFPATH variable.
440		Default: no
441
442MKYP		If "no", disables building of YP (NIS)
443		infrastructure (libraries and support programs).
444		Default: yes
445
446MKZFS		If "no", do not build and install utilities and libraries
447		used to manage ZFS file system. Do not build zfs and solaris
448		compatibility kernel modules.  Note: ZFS requires 64bit
449		atomic operations.
450		Default: yes on amd64, no elsewhere.
451
452MKRUMP		If "no", do not build and install rump related headers,
453		libraries, and programs.
454		Default: yes
455
456USE_HESIOD	If "no", disables building Hesiod support into
457		various system utilities/libraries that support it.
458		If ${MKHESIOD} is "no", USE_HESIOD will also be
459		forced to "no".
460
461USE_INET6	If "no", disables building INET6 (IPv6) support into
462		various system utilities/libraries that support it.
463		If ${MKINET6} is "no", USE_INET6 will also be
464		forced to "no".
465
466USE_JEMALLOC	If "no", disables building the "jemalloc" allocator
467		designed for improved performance with threaded
468		applications.  The "phkmalloc" allocator as used up
469		before NetBSD-5.0 will be substituted.
470
471USE_KERBEROS	If "no", disables building Kerberos v5
472		support into various system utilities/libraries that
473		support it.  If ${MKKERBEROS} is "no", USE_KERBEROS
474		will also be forced to "no".
475
476USE_LDAP	If "no", disables building LDAP support into various
477		system utilities/libraries that support it.
478		If ${MKLDAP} is "no", USE_LDAP will also be forced to "no".
479
480USE_PAM		If "no", disables building PAM authentication support
481		into various system utilities/libraries that support it.
482		If ${MKPAM} is "no", USE_PAM will also be forced to "no".
483
484USE_SKEY	If "no", disables building S/key authentication
485		support into various system utilities/libraries that
486		support it.  If ${MKSKEY} is "no", USE_SKEY will
487		also be forced to "no".
488		Default: no
489
490USE_SSP		If "no", disables GCC stack protection code, which
491		detects stack overflows and aborts the program. The
492		stack protection code imposes a performance penalty
493		of about 5%.
494		Default: "no", unless "USE_FORT" is set to "yes"
495
496NOSSP		Don't compile with stack protector during build.
497		It is set internally for standalone programs.
498
499USE_FORT 	If "yes" turns on substitute wrappers for commonly used
500		functions that do not do bounds checking regularly, but
501		they could in some cases by using the gcc
502		__builtin_object_size() function to determine the buffer
503		size where it is known and detect buffer overflows.
504		These substitute functions are in /usr/include/ssp.
505		Default: depends on the part of the source tree
506
507NOFORT		Don't compile with substitute wrappers during build.
508		It is set internally for standalone programs.
509
510USE_YP		If "no", disables building YP (NIS) support into
511		various system utilities/libraries that support it.
512		If ${MKYP} is "no", USE_YP will also be forced to "no".
513
514USE_PIGZGZIP	If "no", use the host "gzip" program to compress things.
515		Otherwise, build tools/pigz, set TOOL_GZIP=${TOOL_PIGZ},
516		and use nbpigz to compress things.
517		Default: "no".
518
519COPTS.lib<lib>
520OBJCOPTS.lib<lib>
521LDADD.lib<lib>
522CPPFLAGS.lib<lib>
523CXXFLAGS.lib<lib>
524COPTS.<prog>
525OBJCCOPTS.<prog>
526LDADD.<prog>
527CPPFLAGS.<prog>
528CXXFLAGS.<prog>	These provide a way to specify additions to the associated
529		variables in a way that applies only to a particular library
530		or program.  <lib> corresponds to the LIB variable set in
531		the library's makefile.  <prog> corresponds to either PROG
532		or PROG_CXX (if set).  For example, if COPTS.libcrypto is
533		set to "-g", "-g" will be added to COPTS only when compiling
534		the crypto library.
535
536The active compiler is selected using the following variables:
537AVAILABLE_COMPILER
538		List of available compiler suites.  Processed in order
539		for selecting the active compiler for each frontend.
540HAVE_PCC	If defined, PCC is present and enabled.
541HAVE_LLVM	If defined, LLVM/Clang is present and enabled.
542UNSUPPORTED_COMPILER.xxx
543		If defined, the support for compiler "xxx" is disabled.
544
545For the frontends (CC, CPP, CXX, FC and OBJC) the following variables exist:
546ACTIVE_CC	Active compile suite for the CC frontend.
547SUPPORTED_CC	Compile suite with support for the CC frontend.
548TOOL_CC.xxx	Path to the CC frontend for compiler "xxx"
549
550=-=-=-=-=   sys.mk   =-=-=-=-=
551
552The include file <sys.mk> has the default rules for all makes, in the BSD
553environment or otherwise.  You probably don't want to touch this file.
554
555=-=-=-=-=   bsd.own.mk   =-=-=-=-=
556
557The include file <bsd.own.mk> contains source tree configuration parameters,
558such as the owners, groups, etc. for both manual pages and binaries, and
559a few global "feature configuration" parameters.
560
561It has no targets.
562
563To get system-specific configuration parameters, <bsd.own.mk> will try to
564include the file specified by the "MAKECONF" variable.  If MAKECONF is not
565set, or no such file exists, the system make configuration file, /etc/mk.conf
566is included.  These files may define any of the variables described below.
567
568<bsd.own.mk> sets the following variables, if they are not already defined
569(defaults are in brackets):
570
571NETBSDSRCDIR	Top of the NetBSD source tree.
572		If _SRC_TOP_ != "", that will be used as the default,
573		otherwise BSDSRCDIR will be used as the default.
574		Various makefiles within the NetBSD source tree will
575		use this to reference the top level of the source tree.
576
577_SRC_TOP_	Top of the system source tree, as determined by <bsd.own.mk>
578		based on the presence of tools/ and build.sh.  This variable
579		is "internal" to <bsd.own.mk>, although its value is only
580		determined once and then propagated to all sub-makes.
581
582_NETBSD_VERSION_DEPENDS
583		A list of files which contain information about
584		the version of the NetBSD being built.  This is
585		defined only if the current directory appears
586		to be inside a NetBSD source tree.  The list of
587		files includes ${NETBSDSRCDIR}/sys/sys/param.h
588		(which contains the kernel version number),
589		${NETBSDSRCDIR}/sys/conf/newvers.sh and
590		${NETBSDSRCDIR}/sys/conf/osrelease.sh (which
591		interpret the information in sys/sys/param.h), and
592		${_SRC_TOP_OBJ_}/params (which is an optional file,
593		created by "make build" in ${_SRC_TOP_}/Makefile,
594		containing all the variables that may influence the
595		build).
596
597		Targets that depend on the NetBSD version, or on
598		variables defined at build time, can declare a
599		dependency on ${_NETBSD_VERSION_DEPENDS}, like this:
600
601			version.c: ${_NETBSD_VERSION_DEPENDS}
602				commands to create version.c
603
604BSDSRCDIR	The real path to the system sources, so that 'make obj'
605		will work correctly.  [/usr/src]
606
607BSDOBJDIR	The real path to the system 'obj' tree, so that 'make obj'
608		will work correctly.  [/usr/obj]
609
610BINGRP		Binary group.  [wheel]
611
612BINOWN		Binary owner.  [root]
613
614BINMODE		Binary mode.  [555]
615
616NONBINMODE	Mode for non-executable files.  [444]
617
618MANDIR		Base path for manual installation.  [/usr/share/man/cat]
619
620MANGRP		Manual group.  [wheel]
621
622MANOWN		Manual owner.  [root]
623
624MANMODE		Manual mode.  [${NONBINMODE}]
625
626MANINSTALL	Manual installation type.  Space separated list:
627			catinstall, htmlinstall, maninstall
628		Default value derived from MKCATPAGES and MKHTML.
629
630LDSTATIC	Control program linking; if set blank, link everything
631		dynamically.  If set to "-static", link everything statically.
632		If not set, programs link according to their makefile.
633
634LIBDIR		Base path for library installation.  [/usr/lib]
635
636LINTLIBDIR	Base path for lint(1) library installation.  [/usr/libdata/lint]
637
638LIBGRP		Library group.  [${BINGRP}]
639
640LIBOWN		Library owner.  [${BINOWN}]
641
642LIBMODE		Library mode.  [${NONBINMODE}]
643
644DOCDIR		Base path for system documentation (e.g. PSD, USD, etc.)
645	        installation.  [/usr/share/doc]
646
647DOCGRP		Documentation group.  [wheel]
648
649DOCOWN		Documentation owner.  [root]
650
651DOCMODE		Documentation mode.  [${NONBINMODE}]
652
653GZIP_N_FLAG	Flags to pass to TOOL_GZIP to prevent it from inserting
654		file names or timestamps in the compressed output.
655		[-n, or -nT when TOOL_GZIP is really TOOL_PIGZ]
656
657NLSDIR		Base path for Native Language Support files installation.
658		[/usr/share/nls]
659
660NLSGRP		Native Language Support files group.  [wheel]
661
662NLSOWN		Native Language Support files owner.  [root]
663
664NLSMODE		Native Language Support files mode.  [${NONBINMODE}]
665
666X11SRCDIR	The path to the xsrc tree.  [${NETBSDSRCDIR}/../xsrc,
667		if that exists; otherwise /usr/xsrc]
668
669X11SRCDIR.local	The path to the local X11 src tree.  [${X11SRCDIR}/local]
670
671X11SRCDIR.lib<package>
672X11SRCDIR.<package>
673		The path to the xorg src tree for the specificed package>.
674		[${X11SRCDIR}/external/mit/xorg/<package>/dist]
675
676X11ROOTDIR	Root directory of the X11 installation.  [/usr/X11R6 or
677		[/usr/X11R7]
678
679X11BINDIR	X11 bin directory.  [${X11ROOTDIR}/bin]
680
681X11FONTDIR	X11 font directory.  [${X11ROOTDIR}/lib/X11/fonts]
682
683X11INCDIR	X11 include directory.  [${X11ROOTDIR}/include]
684
685X11LIBDIR	X11 lib/x11 (config) directory.  [${X11ROOTDIR}/lib/X11]
686
687X11MANDIR	X11 manual directory.  [${X11ROOTDIR}/man]
688
689X11USRLIBDIR	X11 library directory.  [${X11ROOTDIR}/lib]
690
691STRIPFLAG	The flag passed to the install program to cause the binary
692		to be stripped.  This is to be used when building your
693		own install script so that the entire system can be made
694		stripped/not-stripped using a single knob.  []
695
696COPY		The flag passed to the install program to cause the binary
697		to be copied rather than moved.  This is to be used when
698		building our own install script so that the entire system
699		can either be installed with copies, or with moves using
700		a single knob.  [-c]
701
702MAKEDIRTARGETENV
703		Environment variables passed to the child make process
704		invoked by MAKEDIRTARGET.
705
706MAKEDIRTARGET dir target [params]
707		Runs "cd $${dir} && ${MAKE} [params] $${target}",
708		displaying a "pretty" message whilst doing so.
709
710RELEASEMACHINEDIR
711		Subdirectory used below RELEASEDIR when building
712		a release.  [${MACHINE}]
713
714RELEASEMACHINE	Subdirectory or path component used for the following
715		paths:
716			distrib/${RELEASEMACHINE}
717			distrib/notes/${RELEASEMACHINE}
718			etc/etc.${RELEASEMACHINE}
719		Used when building a release.  [${MACHINE}]
720
721Additionally, the following variables may be set by <bsd.own.mk> or in a
722make configuration file to modify the behavior of the system build
723process (default values are in brackets along with comments, if set by
724<bsd.own.mk>):
725
726USETOOLS	Indicates whether the tools specified by ${TOOLDIR} should
727		be used as part of a build in progress.
728		Supported values:
729
730		yes	Use the tools from TOOLDIR.
731			Must be set to this if cross-compiling.
732
733		no	Do not use the tools from TOOLDIR, but refuse to
734			build native compilation tool components that are
735			version-specific for that tool.
736
737		never	Do not use the tools from TOOLDIR, even when
738			building native tool components.  This is similar to
739			the traditional NetBSD build method, but does not
740			verify that the compilation tools in use are
741			up-to-date enough in order to build the tree
742			successfully.  This may cause build or runtime
743			problems when building the whole NetBSD source tree.
744
745		Default: "yes" if building all or part of a whole NetBSD
746		source tree (detected automatically); "no" otherwise
747		(to preserve traditional semantics of the <bsd.*.mk>
748		make(1) include files).
749
750OBJECT_FMT	Object file format.  [set to "ELF" on architectures that
751		use ELF -- currently all architectures].
752
753TOOLCHAIN_MISSING
754		If not "no", this indicates that the platform being built
755		does not have a working in-tree toolchain.  If the
756		${MACHINE_ARCH} in question falls into this category,
757		TOOLCHAIN_MISSING is conditionally assigned the value "yes".
758		Otherwise, the variable is unconditionally assigned the
759		value "no".
760		If not "no", ${MKBINUTILS}, ${MKGCC}, and ${MKGDB} are
761		unconditionally assigned the value "no".
762
763EXTERNAL_TOOLCHAIN
764		This variable is not directly set by <bsd.own.mk>, but
765		including <bsd.own.mk> is the canonical way to gain
766		access to this variable.  The variable should be defined
767		either in the user's environment or in the user's mk.conf
768		file.  If defined, this variable indicates the root of
769		an external toolchain which will be used to build the
770		tree.  For example, if a platform is a ${TOOLCHAIN_MISSING}
771		platform, EXTERNAL_TOOLCHAIN can be used to re-enable the
772		cross-compile framework.
773
774		If EXTERNAL_TOOLCHAIN is defined, ${MKGCC} is unconditionally
775		assigned the value "no", since the external version of the
776		compiler may not be able to build the library components of
777		the in-tree compiler.
778
779		NOTE: This variable is not yet used in as many places as
780		it should be.  Expect the exact semantics of this variable
781		to change in the short term as parts of the cross-compile
782		framework continue to be cleaned up.
783
784The following variables are defined to commands to perform the
785appropriate operation, with the default in [brackets].  Note that
786the defaults change if USETOOLS == "yes":
787
788TOOL_AMIGAAOUT2BB	aout to Amiga bootblock converter.  [amiga-aout2bb]
789
790TOOL_AMIGAELF2BB	ELF to Amiga bootblock converter.  [amiga-elf2bb]
791
792TOOL_AMIGATXLT		Amige assembly language format translator.  [amiga-txlt]
793
794TOOL_ASN1_COMPILE	ASN1 compiler.  [asn1_compile]
795
796TOOL_AWK		Pattern-directed scanning/processing language.  [awk]
797
798TOOL_CAP_MKDB		Create capability database.  [cap_mkdb]
799
800TOOL_CAT		Concatenate and print files.  [cat]
801
802TOOL_CKSUM		Display file checksums.  [cksum]
803
804TOOL_COMPILE_ET		Error table compiler.  [compile_et]
805
806TOOL_CONFIG		Build kernel compilation directories.  [config]
807
808TOOL_CRUNCHGEN		Generate crunched binary build environment.  [crunchgen]
809
810TOOL_CTAGS		Create a tags file.  [ctags]
811
812TOOL_DB			Manipulate db(3) databases.  [db]
813
814TOOL_DISKLABEL		Read and write disk pack label.  [disklabel]
815
816TOOL_EQN		Format equations for groff.  [eqn]
817
818TOOL_FDISK		MS-DOS partition maintenance program.  [fdisk]
819
820TOOL_FGEN		IEEE 1275 Open Firmware FCode Tokenizer.  [fgen]
821
822TOOL_GENASSYM		Generate constants for assembly files.  [genassym]
823
824TOOL_GENCAT		Generate NLS message catalogs.  [gencat]
825
826TOOL_GMAKE		GNU make utility.  [gmake]
827
828TOOL_GREP		Print lines matching a pattern.  [grep]
829
830TOOL_GROFF		Front end for groff document formatting system.  [groff]
831
832TOOL_GZIP		Compression/decompression tool.  [gzip]
833
834TOOL_GZIP_N		Same as TOOL_GZIP, plus a command line option to
835			prevent it from inserting file names or timestamps
836			into the compressed output.
837			[${TOOL_GZIP} ${GZIP_N_FLAG}]
838
839TOOL_HEXDUMP		Ascii, decimal, hexadecimal, octal dump.  [hexdump]
840
841TOOL_HP300MKBOOT	Make bootable image for hp300.  [hp300-mkboot]
842
843TOOL_HPPAMKBOOT		Make bootable image for hppa.  [hppa-mkboot]
844
845TOOL_INDXBIB		Make bibliographic database's inverted index.  [indxbib]
846
847TOOL_INSTALLBOOT	Install disk bootstrap software.  [installboot]
848
849TOOL_INSTALL_INFO	Update info/dir entries.  [install-info]
850
851TOOL_JOIN		Relational database operator.  [join]
852
853TOOL_M4			M4 macro language processor.  [m4]
854
855TOOL_MACPPCFIXCOFF	Fix up xcoff headers for macppc.  [macppc-fixcoff]
856
857TOOL_MAKEFS		Create file system image from directory tree.  [makefs]
858
859TOOL_MAKEINFO		Translate Texinfo documents.  [makeinfo]
860
861TOOL_MAKEWHATIS		Create a whatis.db database.  [makewhatis]
862
863TOOL_MDSETIMAGE		Set kernel RAM disk image.  [mdsetimage]
864
865TOOL_MENUC		Menu compiler.  [menuc]
866
867TOOL_MIPSELF2ECOFF	Convert ELF-format executable to ECOFF for mips.
868			[mips-elf2ecoff]
869
870TOOL_MKCSMAPPER		Make charset mapping table.  [mkcsmapper]
871
872TOOL_MKESDB		Make encoding scheme database.  [mkesdb]
873
874TOOL_MKLOCALE		Make LC_CTYPE locale files.  [mklocale]
875
876TOOL_MKMAGIC		Create database for file(1).  [file]
877
878TOOL_MKNOD		Make device special file.  [mknod]
879
880TOOL_MKTEMP		Make (unique) temporary file name.  [mktemp]
881
882TOOL_MSGC		Simple message list compiler.  [msgc]
883
884TOOL_MTREE		Map a directory hierarchy.  [mtree]
885
886TOOL_NCDCS		Turn ELF kernel into a NCD firmware image. [ncdcs]
887
888TOOL_PAX		Manipulate file archives and copy directories.  [pax]
889
890TOOL_PIC		Compile pictures for groff.  [pic]
891
892TOOL_PIGZ		Parallel compressor.  [pigz]
893
894TOOL_POWERPCMKBOOTIMAGE	Make bootable image for powerpc.  [powerpc-mkbootimage]
895
896TOOL_PWD_MKDB		Generate the password databases.  [pwd_mkdb]
897
898TOOL_REFER		Preprocess bibliographic references for groff.  [refer]
899
900TOOL_ROFF_ASCII		Generate ASCII groff output.  [nroff]
901
902TOOL_ROFF_DVI		Generate DVI groff output.  [${TOOL_GROFF} -Tdvi]
903
904TOOL_ROFF_HTML		Generate HTML groff output.
905			[${TOOL_GROFF} -Tlatin1 -mdoc2html]
906
907TOOL_ROFF_PS		Generate PS groff output.  [${TOOL_GROFF} -Tps]
908
909TOOL_ROFF_RAW		Generate "raw" groff output.  [${TOOL_GROFF} -Z]
910
911TOOL_RPCGEN		Remote Procedure Call (RPC) protocol compiler.  [rpcgen]
912
913TOOL_SED		Stream editor.  [sed]
914
915TOOL_SOELIM		Eliminate .so's from groff input.  [soelim]
916
917TOOL_SPARKCRC		Generate a crc suitable for use in a sparkive file.
918			[sparkcrc]
919
920TOOL_STAT		Display file status.  [stat]
921
922TOOL_STRFILE		Create a random access file for storing strings.
923			[strfile]
924
925TOOL_SUNLABEL		Read or modify a SunOS disk label.  [sunlabel]
926
927TOOL_TBL		Format tables for groff.  [tbl]
928
929TOOL_UUDECODE		Uudecode a binary file.  [uudecode]
930
931TOOL_VGRIND		Grind nice listings of programs.  [vgrind -f]
932
933TOOL_ZIC		Time zone compiler.  [zic]
934
935For each possible value of MACHINE_CPU, MACHINES.${MACHINE_CPU} contain a
936list of what ports can be built for it.  This keeps those definitions in
937centralized place.
938
939<bsd.own.mk> is generally useful when building your own Makefiles so that
940they use the same default owners etc. as the rest of the tree.
941
942
943=-=-=-=-=   bsd.clean.mk   =-=-=-=-=
944
945The include file <bsd.clean.mk> defines the clean and cleandir
946targets.  It uses the following variables:
947
948CLEANFILES	Files to remove for both the clean and cleandir targets.
949
950CLEANDIRFILES	Files to remove for the cleandir target, but not for
951		the clean target.
952
953MKCLEANSRC	Controls whether or not the clean and cleandir targets
954		will delete files from both the object directory,
955		${.OBJDIR}, and the source directory, ${.CURDIR}.
956
957		If MKCLEANSRC is set to "no", then the file names in
958		CLEANFILES or CLEANDIRFILES are interpreted relative
959		to the object directory, ${.OBJDIR}.  This is the
960		traditional behaviour.
961
962		If MKCLEANSRC is set to "yes", then the file deletion
963		is performed relative to both the object directory,
964		${.OBJDIR}, and the source directory, ${.CURDIR}.  (This
965		has no effect if ${.OBJDIR} is the same as ${.CURDIR}.)
966		Deleting files from ${.CURDIR} is intended to remove
967		stray output files that had been left in the source
968		directory by an earlier build that did not use object
969		directories.
970
971		The default is MKCLEANSRC=yes.  If you always build with
972		separate object directories, and you are sure that there
973		are no stray files in the source directories, then you
974		may set MKCLEANSRC=no to save some time.
975
976MKCLEANVERIFY	Controls whether or not the clean and cleandir targets
977		will verify that files have been deleted.
978
979		If MKCLEANVERIFY is set to "no", then the files will
980		be deleted using a "rm -f" command, and its success or
981		failure will be ignored.
982
983		If MKCLEANVERIFY is set to "yes", then the success of
984		the "rm -f" command will be verified using an "ls"
985		command.
986
987		The default is MKCLEANVERIFY=yes.  If you are sure that
988		there will be no problems caused by file permissions,
989		read-only file systems, or the like, then you may set
990		MKCLEANVERIFY=no to save some time.
991
992To use the clean and cleandir targets defined in <bsd.clean.mk>, other
993Makefiles or bsd.*.mk files should append file names to the CLEANFILES
994or CLEANDIRFILES variables.  For example:
995
996	    CLEANFILES+= a.out
997	    CLEANDIRFILES+= .depend
998
999	    .include <bsd.clean.mk>
1000
1001The files listed in CLEANFILES and CLEANDIRFILES must not be
1002directories, because the potential risk from running "rm -rf" commands
1003in bsd.clean.mk is considered too great.  If you want to recursively
1004delete a directory as part of "make clean" or "make cleandir" then you
1005need to provide your own target.
1006
1007=-=-=-=-=   bsd.dep.mk   =-=-=-=-=
1008
1009The include file <bsd.dep.mk> contains the default targets for building
1010.depend files.  It creates .d files from entries in SRCS and DPSRCS
1011that are C, C++, or Objective C source files, and builds .depend from the
1012.d files.  All other files in SRCS and all of DPSRCS will be used as
1013dependencies for the .d files.  In order for this to function correctly,
1014it should be .included after all other .mk files and directives that may
1015modify SRCS or DPSRCS.  It uses the following variables:
1016
1017SRCS		List of source files to build the program.
1018
1019DPSRCS		List of source files which are needed for generating
1020		dependencies, but are not needed in ${SRCS}.
1021
1022
1023=-=-=-=-=   bsd.files.mk   =-=-=-=-=
1024
1025The include file <bsd.files.mk> handles the FILES variables and is included
1026from <bsd.lib.mk> and <bsd.prog.mk>, and uses the following variables:
1027
1028FILES		The list of files to install.
1029
1030CONFIGFILES	Similar semantics to FILES, except that the files
1031		are installed by the `configinstall' target,
1032		not the `install' target.
1033		The FILES* variables documented below also apply.
1034
1035FILESOWN	File owner.  [${BINOWN}]
1036
1037FILESGRP	File group.  [${BINGRP}]
1038
1039FILESMODE	File mode.  [${NONBINMODE}]
1040
1041FILESDIR	The location to install the files.
1042
1043FILESNAME	Optional name to install each file as.
1044
1045FILESOWN_<fn>	File owner of the specific file <fn>.
1046
1047FILESGRP_<fn>	File group of the specific file <fn>.
1048
1049FILESMODE_<fn>	File mode of the specific file <fn>.
1050
1051FILESDIR_<fn>	The location to install the specific file <fn>.
1052
1053FILESNAME_<fn>	Optional name to install <fn> as.
1054
1055FILESBUILD	If this variable is defined, then its value will be
1056		used as the default for all FILESBUILD_<fn> variables.
1057		Otherwise, the default will be "no".
1058
1059FILESBUILD_<fn>	A value different from "no" will add the file to the list of
1060		targets to be built by `realall'.  Users of that variable
1061		should provide a target to build the file.
1062
1063
1064BUILDSYMLINKS	List of two word items:
1065			lnsrc lntgt
1066		For each lnsrc item, create a symlink named lntgt.
1067		The lntgt symlinks are removed by the cleandir target.
1068
1069UUDECODE_FILES	List of files which are stored as <file>.uue in the source
1070		tree. Each one will be decoded with ${TOOL_UUDECODE}.
1071		The source files have a `.uue' suffix, the generated files do
1072		not.
1073
1074UUDECODE_FILES_RENAME_<fn>
1075		Rename the output from the decode to the provided name.
1076		
1077		*NOTE: These files are simply decoded, with no install or other
1078		       rule applying implicitly except being added to the clean
1079		       target.
1080
1081=-=-=-=-=   bsd.gcc.mk   =-=-=-=-=
1082
1083The include file <bsd.gcc.mk> computes various parameters related to GCC
1084support libraries.  It defines no targets.  <bsd.own.mk> MUST be included
1085before <bsd.gcc.mk>.
1086
1087The primary users of <bsd.gcc.mk> are <bsd.prog.mk> and <bsd.lib.mk>, each
1088of which need to know where to find certain GCC support libraries.
1089
1090The behavior of <bsd.gcc.mk> is influenced by the EXTERNAL_TOOLCHAIN variable,
1091which is generally set by the user.  If EXTERNAL_TOOLCHAIN it set, then
1092the compiler is asked where to find the support libraries, otherwise the
1093support libraries are found in ${DESTDIR}/usr/lib.
1094
1095<bsd.gcc.mk> sets the following variables:
1096
1097_GCC_CRTBEGIN	The full path name to crtbegin.o.
1098
1099_GCC_CRTBEGINS	The full path name to crtbeginS.o.
1100
1101_GCC_CRTEND	The full path name to crtend.o.
1102
1103_GCC_CRTENDS	The full path name to crtendS.o.
1104
1105_GCC_LIBGCCDIR	The directory where libgcc.a is located.
1106
1107
1108=-=-=-=-=   bsd.inc.mk   =-=-=-=-=
1109
1110The include file <bsd.inc.mk> defines the includes target and uses the
1111variables:
1112
1113INCS		The list of include files.
1114
1115INCSDIR		The location to install the include files.
1116
1117INCSNAME	Target name of the include file, if only one; same as
1118		FILESNAME, but for include files.
1119
1120INCSYMLINKS	Similar to SYMLINKS in <bsd.links.mk>, except that these
1121		are installed in the 'includes' target and not the
1122		(much later) 'install' target.
1123
1124INCSNAME_<file>	The name file <file> should be installed as, if not <file>,
1125		same as FILESNAME_<file>, but for include files.
1126
1127
1128=-=-=-=-=   bsd.info.mk   =-=-=-=-=
1129
1130The include file <bsd.info.mk> is used to generate and install GNU Info
1131documentation from respective Texinfo source files.  It defines three
1132implicit targets (.txi.info, .texi.info, and .texinfo.info), and uses the
1133following variables:
1134
1135TEXINFO		List of Texinfo source files.  Info documentation will
1136		consist of single files with the extension replaced by
1137		.info.
1138
1139INFOFLAGS	Flags to pass to makeinfo.  []
1140
1141
1142=-=-=-=-=   bsd.kernobj.mk   =-=-=-=-=
1143
1144The include file <bsd.kernobj.mk> defines variables related to the
1145location of kernel sources and object directories.
1146
1147KERNSRCDIR	Is the location of the top of the kernel src.
1148		[${_SRC_TOP_}/sys]
1149
1150KERNARCHDIR	Is the location of the machine dependent kernel sources.
1151		[arch/${MACHINE}]
1152
1153KERNCONFDIR	Is where the configuration files for kernels are found.
1154		[${KERNSRCDIR}/${KERNARCHDIR}/conf]
1155
1156KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
1157		instance will be compiled in ${KERNOBJDIR}/GENERIC.
1158		The default value is
1159		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
1160		if it exists or the target 'obj' is being made.
1161		Otherwise the default is
1162		${KERNSRCDIR}/${KERNARCHDIR}/compile.
1163
1164It is important that Makefiles (such as those under src/distrib) that
1165wish to find compiled kernels use <bsd.kernobj.mk> and ${KERNOBJDIR}
1166rather than make assumptions about the location of the compiled kernel.
1167
1168
1169=-=-=-=-=   bsd.kinc.mk   =-=-=-=-=
1170
1171The include file <bsd.kinc.mk> defines the many targets (includes,
1172subdirectories, etc.), and is used by kernel makefiles to handle
1173include file installation.  It is intended to be included alone, by
1174kernel Makefiles.  It uses similar variables to <bsd.inc.mk>.
1175Please see <bsd.kinc.mk> for more details, and keep the documentation
1176in that file up to date.
1177
1178=-=-=-=-=   bsd.syscall.mk =-=-=-=-=
1179
1180The include file <bsd.syscall.mk> contains the logic to create syscall
1181files for various emulations. It includes <bsd.kinc.mk> to handle the
1182rest of the targets.
1183
1184=-=-=-=-=   bsd.lib.mk   =-=-=-=-=
1185
1186The include file <bsd.lib.mk> has support for building libraries.  It has
1187the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
1188includes, install, lint, and tags.  Additionally, it has a checkver target
1189which checks for installed shared object libraries whose version is greater
1190that the version of the source. It has a limited number of suffixes,
1191consistent with the current needs of the BSD tree.  <bsd.lib.mk> includes
1192<bsd.shlib.mk> to get shared library parameters.
1193
1194It sets/uses the following variables:
1195
1196LIB		The name of the library to build.
1197
1198LIBDIR		Target directory for libraries.
1199
1200MKARZERO	Normally, ar(1) sets the timestamps, uid, gid and
1201		permissions in files inside its archives to those of
1202		the file it was fed. This leads to non-reproduceable
1203		builds. If MKARZERO is set to "yes" (default is the
1204		same as MKREPRO, or "no" if MKREPRO is not defined),
1205		then the "D" flag is passed to ar, causing the
1206		timestamp, uid and gid to be zeroed and the file
1207		permissions to be set to 644. This allows .a files
1208		from different builds to be bit identical.
1209
1210SHLIBINSTALLDIR	Target directory for shared libraries if ${USE_SHLIBDIR}
1211		is not "no".
1212
1213SHLIB_MAJOR
1214SHLIB_MINOR
1215SHLIB_TEENY	Major, minor, and teeny version numbers of shared library
1216
1217USE_SHLIBDIR	If not "no", use ${SHLIBINSTALLDIR} instead of ${LIBDIR}
1218		as the path to install shared libraries to.
1219		USE_SHLIBDIR must be defined before <bsd.own.mk> is included.
1220		Default: no
1221
1222LIBISMODULE	If not "no", install as ${LIB}.so (without the "lib" prefix),
1223		and act as "MKDEBUGLIB=no MKLINT=no MKPICINSTALL=no
1224		MKPROFILE=no MKSTATICLIB=no".
1225		Default: no
1226
1227LIBISPRIVATE	If not "no", act as "MKDEBUGLIB=no MKLINT=no MKPIC=no
1228		MKPROFILE=no", and don't install the (.a) library.
1229		This is useful for "build only" helper libraries.
1230		Default: no
1231
1232LIBISCXX	If not "no", Use ${CXX} instead of ${CC} to link
1233		shared libraries.
1234		This is useful for C++ libraries.
1235		Default: no
1236
1237LINTLIBDIR	Target directory for lint libraries.
1238
1239LIBGRP		Library group.
1240
1241LIBOWN		Library owner.
1242
1243LIBMODE		Library mode.
1244
1245LDADD		Additional loader objects.
1246
1247MAN		The manual pages to be installed (use a .1 - .9 suffix).
1248
1249NOCHECKVER_<library>
1250NOCHECKVER	If set, disables checking for installed shared object
1251		libraries with versions greater than the source.  A
1252		particular library name, without the "lib" prefix, may
1253		be appended to the variable name to disable the check for
1254		only that library.
1255
1256SRCS		List of source files to build the library.  Suffix types
1257		.s, .c, and .f are supported.  Note, .s files are preferred
1258		to .c files of the same name.  (This is not the default for
1259		versions of make.)
1260
1261LIBDPLIBS	A list of the tuples:
1262			libname  path-to-srcdir-of-libname
1263
1264		For each tuple;
1265		     *	LIBDO.libname contains the .OBJDIR of the library
1266			`libname', and if it is not set it is determined
1267			from the srcdir and added to MAKEOVERRIDES (the
1268			latter is to allow for build time optimization).
1269		     *	LDADD gets  -L${LIBDO.libname} -llibname    added.
1270		     *	DPADD gets  ${LIBDO.libname}/liblibname.so  or
1271				    ${LIBDO.libname}/liblibname.a   added.
1272
1273		The special value "_external" for LIBDO.lib makes the
1274		build system to assume the library comes from outside
1275		of the NetBSD source tree and only causes -llibname
1276		to be added to LDADD.
1277
1278		This variable may be used for individual libraries, as
1279		well as in parent directories to cache common libraries
1280		as a build-time optimization.
1281
1282The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
1283if it exists, as well as the include file <bsd.man.mk>.
1284
1285It has rules for building profiled objects; profiled libraries are
1286built by default.
1287
1288Libraries are ranlib'd when made.
1289
1290
1291=-=-=-=-=   bsd.links.mk   =-=-=-=-=
1292
1293The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
1294and is included from from <bsd.lib.mk> and <bsd.prog.mk>.
1295
1296LINKSOWN, LINKSGRP, and LINKSMODE, are relevant only if a metadata log
1297is used. The defaults may be modified by other bsd.*.mk files which
1298include bsd.links.mk.  In the future, these variables may be replaced
1299by a method for explicitly recording hard links in a metadata log.
1300
1301LINKS		The list of hard links, consisting of pairs of paths:
1302			source-file target-file
1303		${DESTDIR} is prepended to both paths before linking.
1304		For example, to link /bin/test and /bin/[, use:
1305			LINKS=/bin/test /bin/[
1306
1307CONFIGLINKS	Similar semantics to LINKS, except that the links
1308		are installed by the `configinstall' target,
1309		not the `install' target.
1310
1311SYMLINKS	The list of symbolic links, consisting of pairs of paths:
1312			source-file target-file
1313		${DESTDIR} is only prepended to target-file before linking.
1314		For example, to symlink /usr/bin/tar to /bin/tar resulting
1315		in ${DESTDIR}/usr/bin/tar -> /bin/tar:
1316			SYMLINKS=/bin/tar /usr/bin/tar
1317
1318CONFIGSYMLINKS	Similar semantics to SYMLINKS, except that the symbolic links
1319		are installed by the `configinstall' target,
1320		not the `install' target.
1321
1322LINKSOWN	Link owner.  [${BINOWN}]
1323
1324LINKSGRP	Link group.  [${BINGRP}]
1325
1326LINKSMODE	Link mode.  [${NONBINMODE}]
1327
1328LINKSOWN_<fn>	Link owner of the specific file <fn>.
1329
1330LINKSGRP_<fn>	Link group of the specific file <fn>.
1331
1332LINKSMODE_<fn>	Link mode of the specific file <fn>.
1333
1334
1335=-=-=-=-=   bsd.man.mk   =-=-=-=-=
1336
1337The include file <bsd.man.mk> handles installing manual pages and their
1338links.
1339
1340It has a three targets:
1341
1342	catinstall:
1343		Install the preformatted manual pages and their links.
1344	htmlinstall:
1345		Install the HTML manual pages and their links.
1346	maninstall:
1347		Install the manual page sources and their links.
1348
1349It sets/uses the following variables:
1350
1351MANDIR		Base path for manual installation.
1352
1353MANGRP		Manual group.
1354
1355MANOWN		Manual owner.
1356
1357MANMODE		Manual mode.
1358
1359MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
1360		or "/tahoe" for machine specific manual pages.
1361
1362MAN		The manual pages to be installed (use a .1 - .9 suffix).
1363
1364MLINKS		List of manual page links (using a .1 - .9 suffix).  The
1365		linked-to file must come first, the linked file second,
1366		and there may be multiple pairs.
1367
1368The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
1369it exists.
1370
1371
1372=-=-=-=-=   bsd.obj.mk   =-=-=-=-=
1373
1374The include file <bsd.obj.mk> defines targets related to the creation
1375and use of separated object and source directories.
1376
1377If an environment variable named MAKEOBJDIRPREFIX is set, make(1) uses
1378${MAKEOBJDIRPREFIX}${.CURDIR} as the name of the object directory if
1379it exists.  Otherwise make(1) looks for the existence of a
1380subdirectory (or a symlink to a directory) of the source directory
1381into which built targets should be placed.  If an environment variable
1382named MAKEOBJDIR is set, make(1) uses its value as the name of the
1383object directory; failing that, make first looks for a subdirectory
1384named "obj.${MACHINE}", and if that doesn't exist, it looks for "obj".
1385
1386Object directories are not created automatically by make(1) if they
1387don't exist; you need to run a separate "make obj".  (This will happen
1388during a top-level build if "MKOBJDIRS" is set to a value other than
1389"no").  When the source directory is a subdirectory of ${BSDSRCDIR} --
1390and this is determined by a simple string prefix comparison -- object
1391directories are created in a separate object directory tree, and a
1392symlink to the object directory in that tree is created in the source
1393directory; otherwise, "make obj" assumes that you're not in the main
1394source tree and that it's not safe to use a separate object tree.
1395
1396Several variables used by <bsd.obj.mk> control exactly what
1397directories and links get created during a "make obj":
1398
1399MAKEOBJDIR	If set, this is the component name of the object
1400		directory.
1401
1402OBJMACHINE	If this is set but MAKEOBJDIR is not set, creates
1403		object directories or links named "obj.${MACHINE}";
1404		otherwise, just creates ones named "obj".
1405
1406USR_OBJMACHINE  If set, and the current directory is a subdirectory of
1407		${BSDSRCDIR}, create object directory in the
1408		corresponding subdirectory of ${BSDOBJDIR}.${MACHINE};
1409		otherwise, create it in the corresponding subdirectory
1410		of ${BSDOBJDIR}
1411
1412BUILDID		If set, the contents of this variable are appended
1413		to the object directory name.  If OBJMACHINE is also
1414		set, ".${BUILDID}" is added after ".${MACHINE}".
1415
1416
1417=-=-=-=-=   bsd.prog.mk   =-=-=-=-=
1418
1419The include file <bsd.prog.mk> handles building programs from one or
1420more source files, along with their manual pages.  It has a limited number
1421of suffixes, consistent with the current needs of the BSD tree.
1422<bsd.prog.mk> includes <bsd.shlib.mk> to get shared library parameters.
1423
1424It has eight targets:
1425
1426	all:
1427		build the program and its manual page.  This also
1428		creates a GDB initialization file (.gdbinit) in
1429		the objdir.  The .gdbinit file sets the shared library
1430		prefix to ${DESTDIR} to facilitate cross-debugging.
1431	clean:
1432		remove the program, any object files and the files a.out,
1433		Errs, errs, mklog, and ${PROG}.core.
1434	cleandir:
1435		remove all of the files removed by the target clean, as
1436		well as .depend, tags, and any manual pages.
1437		`distclean' is a synonym for `cleandir'.
1438	depend:
1439		make the dependencies for the source files, and store
1440		them in the file .depend.
1441	includes:
1442		install any header files.
1443	install:
1444		install the program and its manual pages; if the Makefile
1445		does not itself define the target install, the targets
1446		beforeinstall and afterinstall may also be used to cause
1447		actions immediately before and after the install target
1448		is executed.
1449	lint:
1450		run lint on the source files
1451	tags:
1452		create a tags file for the source files.
1453
1454It sets/uses the following variables:
1455
1456BINGRP		Binary group.
1457
1458BINOWN		Binary owner.
1459
1460BINMODE		Binary mode.
1461
1462CLEANDIRFILES	Additional files to remove for the cleandir target.
1463
1464CLEANFILES	Additional files to remove for the clean and cleandir targets.
1465
1466CONFIGOPTS	Additional flags to config(1) when building kernels.
1467
1468COPTS		Additional flags to the compiler when creating C objects.
1469
1470COPTS.<fn>	Additional flags to the compiler when creating the
1471		C objects for <fn>.
1472		For <fn>.[ly], "<fn>.c" must be used.
1473
1474CPUFLAGS	Additional flags to the compiler/assembler to select
1475		CPU instruction set options, CPU tuning options, etc.
1476
1477CPUFLAGS.<fn>	Additional flags to the compiler/assembler for <fn>.
1478		For <fn>.[ly], "<fn>.c" must be used.
1479
1480CPPFLAGS	Additional flags to the C pre-processor.
1481
1482CPPFLAGS.<fn>	Additional flags to the C pre-processor for <fn>.
1483		For <fn>.[ly], "<fn>.c" must be used.
1484
1485GDBINIT		List of GDB initialization files to add to "source"
1486		directives in the .gdbinit file that is created in the
1487		objdir.
1488
1489LDADD		Additional loader objects.  Usually used for libraries.
1490		For example, to load with the compatibility and utility
1491		libraries, use:
1492
1493			LDADD+=-lutil -lcompat
1494
1495LDFLAGS		Additional linker flags (passed to ${CC} during link).
1496
1497LINKS		See <bsd.links.mk>
1498
1499OBJCOPTS	Additional flags to the compiler when creating ObjC objects.
1500
1501OBJCOPTS.<fn>	Additional flags to the compiler when creating the
1502		ObjC objects for <fn>.
1503		For <fn>.[ly], "<fn>.c" must be used.
1504
1505SYMLINKS	See <bsd.links.mk>
1506
1507MAN		Manual pages (should end in .1 - .9).  If no MAN variable is
1508		defined, "MAN=${PROG}.1" is assumed.
1509
1510PAXCTL_FLAGS	If defined, run paxctl(1) on the program binary after link
1511		time, with the value of this variable as args to paxctl(1).
1512
1513PAXCTL_FLAGS.${PROG} Custom override for PAXCTL_FLAGS.
1514
1515PROG		The name of the program to build.  If not supplied, nothing
1516		is built.
1517
1518PROG_CXX	If defined, the name of the program to build.  Also
1519		causes <bsd.prog.mk> to link the program with the C++
1520		compiler rather than the C compiler.  PROG_CXX overrides
1521		the value of PROG if PROG is also set.
1522
1523PROGNAME	The name that the above program will be installed as, if
1524		different from ${PROG}.
1525
1526SRCS		List of source files to build the program.  If SRCS is not
1527		defined, it's assumed to be ${PROG}.c.
1528
1529DPSRCS		List of source files which are needed for generating
1530		dependencies, but are not needed in ${SRCS}.
1531
1532DPADD		Additional dependencies for the program.  Usually used for
1533		libraries.  For example, to depend on the compatibility and
1534		utility libraries use:
1535
1536			DPADD+=${LIBCOMPAT} ${LIBUTIL}
1537
1538		The following system libraries are predefined for DPADD:
1539
1540		LIBARCHIVE?=	${DESTDIR}/usr/lib/libarchive.a
1541		LIBASN1?=	${DESTDIR}/usr/lib/libasn1.a
1542		LIBATF_C?=	${DESTDIR}/usr/lib/libatf-c.a
1543		LIBATF_CXX?=	${DESTDIR}/usr/lib/libatf-c++.a
1544		LIBBIND9?=	${DESTDIR}/usr/lib/libbind9.a
1545		LIBBLUETOOTH?=	${DESTDIR}/usr/lib/libbluetooth.a
1546		LIBBSDMALLOC?=	${DESTDIR}/usr/lib/libbsdmalloc.a
1547		LIBBZ2?=	${DESTDIR}/usr/lib/libbz2.a
1548		LIBC?=		${DESTDIR}/usr/lib/libc.a
1549		LIBCOMPAT?=	${DESTDIR}/usr/lib/libcompat.a
1550		LIBCOM_ERR?=	${DESTDIR}/usr/lib/libcom_err.a
1551		LIBCRT0?=	${DESTDIR}/usr/lib/crt0.o
1552		LIBCRTI?=	${DESTDIR}/usr/lib/crti.o
1553		LIBCRYPT?=	${DESTDIR}/usr/lib/libcrypt.a
1554		LIBCRYPTO?=	${DESTDIR}/usr/lib/libcrypto.a
1555		LIBCRYPTO_IDEA?=${DESTDIR}/usr/lib/libcrypto_idea.a
1556		LIBCRYPTO_MDC2?=${DESTDIR}/usr/lib/libcrypto_mdc2.a
1557		LIBCRYPTO_RC5?=	${DESTDIR}/usr/lib/libcrypto_rc5.a
1558		LIBCURSES?=	${DESTDIR}/usr/lib/libcurses.a
1559		LIBC_PIC?=	${DESTDIR}/usr/lib/libc_pic.a
1560		LIBDBM?=	${DESTDIR}/usr/lib/libdbm.a
1561		LIBDES?=	${DESTDIR}/usr/lib/libdes.a
1562		LIBDNS?=	${DESTDIR}/usr/lib/libdns.a
1563		LIBEDIT?=	${DESTDIR}/usr/lib/libedit.a
1564		LIBEVENT?=	${DESTDIR}/usr/lib/libevent.a
1565		LIBEVENT_OPENSSL?=	${DESTDIR}/usr/lib/libevent_openssl.a
1566		LIBEVENT_PTHREADS?=	${DESTDIR}/usr/lib/libevent_pthreads.a
1567		LIBEXECINFO?=	${DESTDIR}/usr/lib/libexecinfo.a
1568		LIBEXPAT?=	${DESTDIR}/usr/lib/libexpat.a
1569		LIBFETCH?=	${DESTDIR}/usr/lib/libfetch.a
1570		LIBFORM?=	${DESTDIR}/usr/lib/libform.a
1571		LIBFL?=		${DESTDIR}/usr/lib/libfl.a
1572		LIBG2C?=	${DESTDIR}/usr/lib/libg2c.a
1573		LIBGCC?=	${DESTDIR}/usr/lib/libgcc.a
1574		LIBGNUMALLOC?=	${DESTDIR}/usr/lib/libgnumalloc.a
1575		LIBGSSAPI?=	${DESTDIR}/usr/lib/libgssapi.a
1576		LIBHDB?=	${DESTDIR}/usr/lib/libhdb.a
1577		LIBHEIMBASE?=	${DESTDIR}/usr/lib/libheimbase.a
1578		LIBHEIMNTLM?=	${DESTDIR}/usr/lib/libheimntlm.a
1579		LIBHX500?=	${DESTDIR}/usr/lib/libhx500.a
1580		LIBINTL?=	${DESTDIR}/usr/lib/libintl.a
1581		LIBIPSEC?=	${DESTDIR}/usr/lib/libipsec.a
1582		LIBISC?=	${DESTDIR}/usr/lib/libisc.a
1583		LIBISCCC?=	${DESTDIR}/usr/lib/libisccc.a
1584		LIBISCFG?=	${DESTDIR}/usr/lib/libiscfg.a
1585		LIBKADM5CLNT?=	${DESTDIR}/usr/lib/libkadm5clnt.a
1586		LIBKADM5SRV?=	${DESTDIR}/usr/lib/libkadm5srv.a
1587		LIBKAFS?=	${DESTDIR}/usr/lib/libkafs.a
1588		LIBKRB5?=	${DESTDIR}/usr/lib/libkrb5.a
1589		LIBKVM?=	${DESTDIR}/usr/lib/libkvm.a
1590		LIBL?=		${DESTDIR}/usr/lib/libl.a
1591		LIBLBER?=	${DESTDIR}/usr/lib/liblber.a
1592		LIBLDAP?=	${DESTDIR}/usr/lib/libldap.a
1593		LIBLDAP_R?=	${DESTDIR}/usr/lib/libldap_r.a
1594		LIBLUA?=	${DESTDIR}/usr/lib/liblua.a
1595		LIBLUTOK?=	${DESTDIR}/usr/lib/liblutok.a
1596		LIBLWRES?=	${DESTDIR}/usr/lib/liblwres.a
1597		LIBM?=		${DESTDIR}/usr/lib/libm.a
1598		LIBMAGIC?=	${DESTDIR}/usr/lib/libmagic.a
1599		LIBMENU?=	${DESTDIR}/usr/lib/libmenu.a
1600		LIBOBJC?=	${DESTDIR}/usr/lib/libobjc.a
1601		LIBOSSAUDIO?=	${DESTDIR}/usr/lib/libossaudio.a
1602		LIBPAM?=	${DESTDIR}/usr/lib/libpam.a
1603		LIBPANEL?=	${DESTDIR}/usr/lib/libpanel.a
1604		LIBPCAP?=	${DESTDIR}/usr/lib/libpcap.a
1605		LIBPCI?=	${DESTDIR}/usr/lib/libpci.a
1606		LIBPMC?=	${DESTDIR}/usr/lib/libpmc.a
1607		LIBPOSIX?=	${DESTDIR}/usr/lib/libposix.a
1608		LIBPTHREAD?=	${DESTDIR}/usr/lib/libpthread.a
1609		LIBPTHREAD_DBG?=${DESTDIR}/usr/lib/libpthread_dbg.a
1610		LIBPUFFS?=	${DESTDIR}/usr/lib/libpuffs.a
1611		LIBQUOTA?=	${DESTDIR}/usr/lib/libquota.a
1612		LIBRADIUS?=	${DESTDIR}/usr/lib/libradius.a
1613		LIBRESOLV?=	${DESTDIR}/usr/lib/libresolv.a
1614		LIBRMT?=	${DESTDIR}/usr/lib/librmt.a
1615		LIBROKEN?=	${DESTDIR}/usr/lib/libroken.a
1616		LIBRPCSVC?=	${DESTDIR}/usr/lib/librpcsvc.a
1617		LIBRT?=		${DESTDIR}/usr/lib/librt.a
1618		LIBRUMP?=	${DESTDIR}/usr/lib/librump.a
1619		LIBRUMPFS_CD9660FS?=${DESTDIR}/usr/lib/librumpfs_cd9660fs.a
1620		LIBRUMPFS_EFS?=	${DESTDIR}/usr/lib/librumpfs_efs.a
1621		LIBRUMPFS_EXT2FS?=${DESTDIR}/usr/lib/librumpfs_ext2fs.a
1622		LIBRUMPFS_FFS?=	${DESTDIR}/usr/lib/librumpfs_ffs.a
1623		LIBRUMPFS_HFS?=	${DESTDIR}/usr/lib/librumpfs_hfs.a
1624		LIBRUMPFS_LFS?=	${DESTDIR}/usr/lib/librumpfs_lfs.a
1625		LIBRUMPFS_MSDOSFS?=${DESTDIR}/usr/lib/librumpfs_msdosfs.a
1626		LIBRUMPFS_NFS?=	${DESTDIR}/usr/lib/librumpfs_nfs.a
1627		LIBRUMPFS_NTFS?=${DESTDIR}/usr/lib/librumpfs_ntfs.a
1628		LIBRUMPFS_SYSPUFFS?=${DESTDIR}/usr/lib/librumpfs_syspuffs.a
1629		LIBRUMPFS_TMPFS?=${DESTDIR}/usr/lib/librumpfs_tmpfs.a
1630		LIBRUMPFS_UDF?=	${DESTDIR}/usr/lib/librumpfs_udf.a
1631		LIBRUMPFS_UFS?=	${DESTDIR}/usr/lib/librumpfs_ufs.a
1632		LIBRUMPUSER?=	${DESTDIR}/usr/lib/librumpuser.a
1633		LIBSASLC?=	${DESTDIR}/usr/lib/libsaslc.a
1634		LIBSKEY?=	${DESTDIR}/usr/lib/libskey.a
1635		LIBSL?=		${DESTDIR}/usr/lib/libsl.a
1636		LIBSQLITE3?=	${DESTDIR}/usr/lib/libsqlite3.a
1637		LIBSS?=		${DESTDIR}/usr/lib/libss.a
1638		LIBSSH?=	${DESTDIR}/usr/lib/libssh.a
1639		LIBSSL?=	${DESTDIR}/usr/lib/libssl.a
1640		LIBSSP?=	${DESTDIR}/usr/lib/libssp.a
1641		LIBSTDCXX?=	${DESTDIR}/usr/lib/libstdc++.a
1642		LIBSUPCXX?=	${DESTDIR}/usr/lib/libsupc++.a
1643		LIBTERMINFO?=	${DESTDIR}/usr/lib/libterminfo.a
1644		LIBTRE?=	${DESTDIR}/usr/lib/libtre.a
1645		LIBUNBOUND?=	${DESTDIR}/usr/lib/libunbound.a
1646		LIBUSBHID?=	${DESTDIR}/usr/lib/libusbhid.a
1647		LIBUTIL?=	${DESTDIR}/usr/lib/libutil.a
1648		LIBWIND?=	${DESTDIR}/usr/lib/libwind.a
1649		LIBWRAP?=	${DESTDIR}/usr/lib/libwrap.a
1650		LIBY?=		${DESTDIR}/usr/lib/liby.a
1651		LIBZ?=		${DESTDIR}/usr/lib/libz.a
1652
1653		The following X-Windows libraries are predefined for DPADD:
1654
1655		LIBFS?=		${DESTDIR}/usr/X11R7/lib/libFS.a
1656		LIBGL?=		${DESTDIR}/usr/X11R7/lib/libGL.a
1657		LIBGLU?=	${DESTDIR}/usr/X11R7/lib/libGLU.a
1658		LIBICE?=	${DESTDIR}/usr/X11R7/lib/libICE.a
1659		LIBSM?=		${DESTDIR}/usr/X11R7/lib/libSM.a
1660		LIBX11?=	${DESTDIR}/usr/X11R7/lib/libX11.a
1661		LIBX11_XCB?=	${DESTDIR}/usr/X11R7/lib/libX11-xcb.a
1662		LIBXTRAP?=	${DESTDIR}/usr/X11R7/lib/libXTrap.a
1663		LIBXAU?=	${DESTDIR}/usr/X11R7/lib/libXau.a
1664		LIBXAW?=	${DESTDIR}/usr/X11R7/lib/libXaw.a
1665		LIBXCB?=	${DESTDIR}/usr/X11R7/lib/libxcb.a
1666		LIBXDMCP?=	${DESTDIR}/usr/X11R7/lib/libXdmcp.a
1667		LIBXEXT?=	${DESTDIR}/usr/X11R7/lib/libXext.a
1668		LIBXFONT?=	${DESTDIR}/usr/X11R7/lib/libXfont.a
1669		LIBXFT?=	${DESTDIR}/usr/X11R7/lib/libXft.a
1670		LIBXI?=		${DESTDIR}/usr/X11R7/lib/libXi.a
1671		LIBXINERAMA?=	${DESTDIR}/usr/X11R7/lib/libXinerama.a
1672		LIBXMU?=	${DESTDIR}/usr/X11R7/lib/libXmu.a
1673		LIBXMUU?=	${DESTDIR}/usr/X11R7/lib/libXmuu.a
1674		LIBXPM?=	${DESTDIR}/usr/X11R7/lib/libXpm.a
1675		LIBXRANDR?=	${DESTDIR}/usr/X11R7/lib/libXrandr.a
1676		LIBXRENDER?=	${DESTDIR}/usr/X11R7/lib/libXrender.a
1677		LIBXSS?=	${DESTDIR}/usr/X11R7/lib/libXss.a
1678		LIBXT?=		${DESTDIR}/usr/X11R7/lib/libXt.a
1679		LIBXTST?=	${DESTDIR}/usr/X11R7/lib/libXtst.a
1680		LIBXV?=		${DESTDIR}/usr/X11R7/lib/libXv.a
1681		LIBXXF86DGA?=	${DESTDIR}/usr/X11R7/lib/libXxf86dga.a
1682		LIBXXF86MISC?=	${DESTDIR}/usr/X11R7/lib/libXxf86misc.a
1683		LIBXXF86VM?=	${DESTDIR}/usr/X11R7/lib/libXxf86vm.a
1684		LIBDPS?=	${DESTDIR}/usr/X11R7/lib/libdps.a
1685		LIBFNTSTUBS?=	${DESTDIR}/usr/X11R7/lib/libfntstubs.a
1686		LIBFONTCACHE?=	${DESTDIR}/usr/X11R7/lib/libfontcache.a
1687		LIBFONTCONFIG?=	${DESTDIR}/usr/X11R7/lib/libfontconfig.a
1688		LIBFONTENC?=	${DESTDIR}/usr/X11R7/lib/libfontenc.a
1689		LIBFREETYPE?=	${DESTDIR}/usr/X11R7/lib/libfreetype.a
1690		LIBLBXUTIL?=	${DESTDIR}/usr/X11R7/lib/liblbxutil.a
1691		LIBXKBFILE?=	${DESTDIR}/usr/X11R7/lib/libxkbfile.a
1692
1693SHAREDSTRINGS	If defined, a new .c.o rule is used that results in shared
1694		strings, using xstr(1). Note that this will not work with
1695		parallel makes.
1696
1697STRIPFLAG	The flag passed to the install program to cause the binary
1698		to be stripped.
1699
1700SUBDIR		A list of subdirectories that should be built as well.
1701		Each of the targets will execute the same target in the
1702		subdirectories.
1703
1704SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
1705		These are installed exactly like programs.
1706
1707SCRIPTSDIR	The location to install the scripts.  Each script can be
1708		installed to a separate path by setting SCRIPTSDIR_<script>.
1709
1710SCRIPTSNAME	The name that the above program will be installed as, if
1711		different from ${SCRIPTS}. These can be further specialized
1712		by setting SCRIPTSNAME_<script>.
1713
1714FILES		See description of <bsd.files.mk>.
1715
1716SHLINKDIR	Target directory for shared linker.  See description of
1717		<bsd.own.mk> for additional information about this variable.
1718
1719The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
1720if it exists, as well as the include file <bsd.man.mk>.
1721
1722Some simple examples:
1723
1724To build foo from foo.c with a manual page foo.1, use:
1725
1726	PROG=	foo
1727
1728	.include <bsd.prog.mk>
1729
1730To build foo from foo.c with a manual page foo.2, add the line:
1731
1732	MAN=	foo.2
1733
1734If foo does not have a manual page at all, add the line:
1735
1736	MKMAN=	no
1737
1738If foo has multiple source files, add the line:
1739
1740	SRCS=	a.c b.c c.c d.c
1741
1742
1743=-=-=-=-=   bsd.rpc.mk   =-=-=-=-=
1744
1745The include file <bsd.rpc.mk> contains a makefile fragment used to
1746construct source files built by rpcgen.
1747
1748The following macros may be defined in makefiles which include
1749<bsd.rpc.mk> in order to control which files get built and how they
1750are to be built:
1751
1752RPC_INCS:	construct .h file from .x file
1753RPC_XDRFILES:	construct _xdr.c from .x file
1754		(for marshalling/unmarshalling data types)
1755RPC_SVCFILES:	construct _svc.c from .x file
1756		(server-side stubs)
1757RPC_SVCFLAGS:	Additional flags passed to builds of RPC_SVCFILES.
1758
1759RPC_XDIR:	Directory containing .x/.h files
1760
1761
1762=-=-=-=-=   bsd.shlib.mk   =-=-=-=-=
1763
1764The include file <bsd.shlib.mk> computes parameters for shared library
1765installation and use.  It defines no targets.  <bsd.own.mk> MUST be
1766included before <bsd.shlib.mk>.
1767
1768<bsd.own.mk> sets the following variables, if they are not already defined
1769(defaults are in brackets):
1770
1771SHLIBINSTALLDIR	If ${USE_SHLIBDIR} is not "no", use ${SHLIBINSTALLDIR}
1772		instead of ${LIBDIR} as the base path for shared library
1773		installation.  [/lib]
1774
1775SHLIBDIR	The path to USE_SHLIBDIR shared libraries to use when building
1776		a program.  [/lib for programs in /bin and /sbin, /usr/lib
1777		for all others.]
1778
1779_LIBSODIR	Set to ${SHLIBINSTALLDIR} if ${USE_SHLIBDIR} is not "no",
1780		otherwise set to ${LIBDIR}
1781
1782SHLINKINSTALLDIR Base path for shared linker.  [/libexec]
1783
1784SHLINKDIR	Path to use for shared linker when building a program.
1785		[/libexec for programs in /bin and /sbin, /usr/libexec for
1786		all others.]
1787
1788
1789=-=-=-=-=   bsd.subdir.mk   =-=-=-=-=
1790
1791The include file <bsd.subdir.mk> contains the default targets for building
1792subdirectories.  It has the same eight targets as <bsd.prog.mk>: all,
1793clean, cleandir, depend, includes, install, lint, and tags.  It uses the
1794following variables:
1795
1796NOSUBDIR	If this variable is defined, then the SUBDIR variable
1797		will be ignored and subdirectories will not be processed.
1798
1799SUBDIR		For all of the directories listed in ${SUBDIR}, the
1800		specified directory will be visited and the target made.
1801
1802		As a special case, the use of a token .WAIT as an
1803		entry in SUBDIR acts as a synchronization barrier
1804		when multiple make jobs are run; subdirs before the
1805		.WAIT must complete before any subdirs after .WAIT are
1806		started.  See make(1) for some caveats on use of .WAIT
1807		and other special sources.
1808
1809
1810=-=-=-=-=   bsd.x11.mk   =-=-=-=-=
1811
1812The include file <bsd.x11.mk> contains parameters and targets for
1813cross-building X11 from ${X11SRCDIR.<package>}.  It should be included
1814after the general Makefile contents but before the include files such as
1815<bsd.prog.mk> and <bsd.lib.mk>.
1816
1817It provides the following targets:
1818	.man.1 .man.3 .man.4 .man.5 .man.7:
1819		If ${MAN} or ${PROG} is set and ${MKMAN} != "no",
1820		these rules convert from X11's manual page source
1821		into an mdoc.old source file.
1822
1823It sets the following variables:
1824
1825BINDIR			Set to ${X11BINDIR}.
1826			To override, define after including <bsd.x11.mk>
1827
1828LIBDIR			Set to ${X11USRLIBDIR}.
1829			To override, define after including <bsd.x11.mk>
1830
1831MANDIR			Set to ${X11MANDIR}.
1832			To override, define after including <bsd.x11.mk>
1833
1834CPPFLAGS		Appended with definitions to include from
1835			${DESTDIR}${X11INCDIR}
1836
1837LDFLAGS			Appended with definitions to link from
1838			${DESTDIR}${X11USRLIBDIR}
1839
1840X11FLAGS.CONNECTION	Equivalent to X11's CONNECTION_FLAGS.
1841
1842X11FLAGS.EXTENSION	Equivalent to X11's EXT_DEFINES.
1843
1844X11FLAGS.LOADABLE	Equivalent to X11's LOADABLE.
1845
1846X11FLAGS.OS_DEFINES	Equivalent to X11's OS_DEFINES.
1847
1848X11FLAGS.SERVER		Equivalent to X11's ServerDefines.
1849
1850X11FLAGS.THREADLIB	Equivalent to X11's THREADS_DEFINES for libraries.
1851
1852X11FLAGS.THREADS	Equivalent to X11's THREADS_DEFINES.
1853
1854X11FLAGS.VERSION	cpp(1) definitions of OSMAJORVERSION and OSMINORVERSION.
1855
1856X11FLAGS.DIX		Equivalent to X11's DIX_DEFINES.
1857
1858X11TOOL_UNXCOMM		Commandline to convert `XCOMM' comments to `#'
1859
1860It uses the following variables:
1861
1862APPDEFS			List of app-default files to install.
1863
1864CPPSCRIPTS		List of files/scripts to run through cpp(1)
1865			and then ${X11TOOL_UNXCOMM}.  The source files
1866			have a `.cpp' suffix, the generated files do not.
1867
1868CPPSCRIPTFLAGS		Additional flags to cpp(1) when building CPPSCRIPTS.
1869
1870CPPSCRIPTFLAGS_<fn>	Additional flags to cpp(1) when building CPPSCRIPT <fn>.
1871
1872
1873=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1874
1875The following files are described here for completion, but they are not
1876supposed to be included directly from other Makefiles; they are used
1877internally by other system files.
1878
1879=-=-=-=-=   bsd.sys.mk   =-=-=-=-=
1880
1881The include file <bsd.sys.mk> is used by other system mk files and
1882it is not intended to be included standalone. It contains rules and
1883system build variables. It requires bsd.own.mk to be included first.
1884It contains overrides that are used when building the NetBSD source tree.
1885
1886The following variables control how various files are compiled/built.
1887(Note that these may be overridden in <bsd.own.mk> if USETOOLS == "yes"):
1888
1889AR		Create, modify, and extract from archives.  [ar]
1890
1891ARFLAGS		Options to ${AR}.  [rl]
1892
1893AS		Assembler.  [as]
1894
1895AFLAGS		Options to ${CC} when compiling or linking .s or .S
1896		assembly source files.  []
1897
1898BUILDSEED	GCC uses random numbers when compiling C++ code.
1899		If this option is present, seed the random number
1900		generator based on the value, source file names and
1901		the output file name to make builds more deterministic.
1902		Additional information is available in the GCC
1903		documentation of -frandom-seed.
1904
1905CC		C compiler.  [cc]
1906
1907CFLAGS		Options to ${CC}.  [Usually -O or -O2]
1908
1909CPP		C Pre-Processor.  [cpp]
1910
1911CPPFLAGS	Options to ${CPP}.  []
1912
1913CPUFLAGS	Optimization flags for ${CC}.  []
1914
1915CXX		C++ compiler.  [c++]
1916
1917CXXFLAGS	Options to ${CXX}.  [${CFLAGS}]
1918
1919ELF2ECOFF	Convert ELF-format executable to ECOFF.  [elf2ecoff]
1920
1921FC		Fortran compiler.  [f77]
1922
1923FFLAGS		Options to {$FC}.  [-O]
1924
1925HOST_SH		Shell.	This must be an absolute path, because it may be
1926		substituted into "#!" lines in scripts.	 [/bin/sh]
1927
1928INSTALL		install(1) command.  [install]
1929
1930LEX		Lexical analyzer.  [lex]
1931
1932LFLAGS		Options to ${LEX}.  []
1933
1934LPREFIX		Symbol prefix for ${LEX} (see -P option in lex(1)) [yy]
1935
1936LD		Linker.  [ld]
1937
1938LDFLAGS		Options to ${CC} during the link process.  []
1939
1940LINT		C program verifier.  [lint]
1941
1942LINTFLAGS	Options to ${LINT}.  [-chapbxzgFS]
1943
1944LORDER		List dependencies for object files.  [lorder]
1945
1946MAKE		make(1).  [make]
1947
1948MKDEP		Construct Makefile dependency list.  [mkdep]
1949
1950MKDEPCXX	Construct Makefile dependency list for C++ files.  [mkdep]
1951
1952NM		List symbols from object files.  [nm]
1953
1954PC		Pascal compiler.  [pc]  (Not present)
1955
1956PFLAGS		Options to ${PC}.  []
1957
1958OBJC		Objective C compiler.  [${CC}]
1959
1960OBJCFLAGS	Options to ${OBJC}.  [${CFLAGS}]
1961
1962OBJCOPY		Copy and translate object files.  [objcopy]
1963
1964OBJCOPYLIBFLAGS	Flags to pass to objcopy when library objects are
1965		being built. [${.TARGET} =~ "*.po" ? -X : -x]
1966
1967OBJDUMP		Display information from object files.  [objdump]
1968
1969RANLIB		Generate index to archive.  [ranlib]
1970
1971READELF		Display information from ELF object files.  [readelf]
1972
1973SIZE		List section sizes and total size.  [size]
1974
1975STRINGS		Display printable character sequences in files.  [strings]
1976
1977STRIP		Discard symbols from object files.  [strip]
1978
1979TSORT		Topological sort of a directed graph.  [tsort -q]
1980
1981YACC		LALR(1) parser generator.  [yacc]
1982
1983YFLAGS		Options to ${YACC}.  []
1984
1985YHEADER		If defined, add "-d" to YFLAGS, and add dependencies
1986		from <file>.y to <file>.h and <file>.c, and add
1987		<foo>.h to CLEANFILES.
1988
1989YPREFIX		If defined, add "-p ${YPREFIX}" to YFLAGS.
1990
1991
1992Other variables of note (incomplete list):
1993
1994NOGCCERROR	If defined, prevents passing certain ${CFLAGS} to GCC
1995		that cause warnings to be fatal, such as:
1996			-Werror -Wa,--fatal-warnings
1997		(The latter being for as(1).)
1998
1999NOCLANGERROR	If defined and clang is used as C compiler, -Werror is not
2000		passed to it.
2001
2002WARNS		Crank up compiler warning options; the distinct levels are:
2003			WARNS=1
2004			WARNS=2
2005			WARNS=3
2006			WARNS=4
2007			WARNS=5
2008			WARNS=6
2009
2010=-=-=-=-=   bsd.host.mk  =-=-=-=-=
2011
2012This file is automatically included from bsd.own.mk. It contains settings
2013for all the HOST_* variables that are used in host programs and libraries.
2014
2015HOST_AR			The host archive processing command
2016
2017HOST_CC			The host c compiler
2018
2019HOST_CFLAGS		The host c compiler flags
2020
2021HOST_COMPILE.c		The host c compiler line with flags
2022
2023HOST_COMPILE.cc		The host c++ compiler line with flags
2024
2025HOST_CPP		The host c pre-processor
2026
2027HOST_CPPFLAGS		The cost c pre-processor flags
2028
2029HOST_CXX		The host c++ compiler
2030
2031HOST_CXXFLAGS		The host c++ compiler flags
2032
2033HOST_INSTALL_DIR	The host command to install a directory
2034
2035HOST_INSTALL_FILE	The host command to install a file
2036
2037HOST_INSTALL_SYMLINK	The host command to install a symlink
2038
2039HOST_LD			The host linker command
2040
2041HOST_LDFLAGS		The host linker flags
2042
2043HOST_LINK.c		The host c linker line with flags
2044
2045HOST_LINK.cc		The host c++ linker line with flags
2046
2047HOST_LN			The host command to link two files
2048
2049HOST_MKDEP		The host command to create dependencies for c programs
2050
2051HOST_MKDEPCXX		The host command to create dependencies for c++ programs
2052
2053HOST_OSTYPE		The host OSNAME-RELEASE-ARCH tupple
2054
2055HOST_RANLIB		The host command to create random access archives
2056
2057HOST_SH			The host Bourne shell interpreter name (absolute path)
2058
2059=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
2060