bsd.README revision 1.367
1#	$NetBSD: bsd.README,v 1.367 2018/03/01 06:34:23 snj 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
150MKCTF		If "no", do not build and install CTF tools, and also
151		don't generate and manipulate CTF data of ELF binaries
152		during build.
153		Default: no
154
155NOCTF		Don't generate and manipulate CTF data of ELF binaries
156		during build. It is set internally for standalone programs.
157
158MKCVS		If "no", don't build or install cvs(1).
159		Default: yes
160
161MKDEBUG		If "no", don't build and install separate debugging symbols
162		into /usr/libdata/debug.
163		Default: no
164
165NODEBUG		Don't compile with debugging symbols during build.
166		It is set internally for standalone programs.
167
168MKDEBUGLIB	Build *_g.a debugging libraries, which are compiled
169		with -DDEBUG.
170		Default: no
171
172MKDEPINCLUDES	If "yes" issue .include statements in the .depend file
173		instead of inlining the contents of the .d files. Useful
174		when stale dependencies are present, to list the exact
175		files that need refreshing. It is off by default because
176		it is possibly slower.
177		Default "no"
178
179MKDOC		If "no", don't build or install the documentation.
180		Default: yes
181
182MKDTRACE	If "no", do not build and install the kernel modules,
183		utilities and libraries used to implement the dtrace(1)
184		facility.
185		Default: no
186
187MKDYNAMICROOT	If "no", build programs in /bin and /sbin statically,
188		don't install certain libraries in /lib, and don't
189		install the shared linker into /libexec.
190		Default: yes
191
192MKEXTSRC        If not "no", 'make build' also descends into either src/extsrc
193		to cross-build programs and libraries externally added by
194		users, and automatically enables creation of those sets.
195		Default: no
196
197MKGCC		If "no", don't build gcc(1) or any of the GCC-related
198		libraries (libgcc, libobjc, libstdc++).
199		Default: yes
200
201MKGCCCMDS	If "no", don't build gcc(1), but do build the GCC-related
202		libraries (libgcc, libobjc, libstdc++).
203		Default: yes
204
205MKGDB		If "no", don't build gdb(1).
206		Default: yes
207
208MKGROFFHTMLDOC	If "no", avoid trying to use groff to generate html for
209		miscellaneous articles, as this seems to sometimes want
210		to run software not in base. Does not affect html man
211		pages.
212		Default: no
213
214MKHESIOD	If "no", disables building of Hesiod infrastructure
215		(libraries and support programs).
216		Default: yes
217
218MKHOSTOBJ	If not "no", for programs intended to be run on the compile
219		host, the name, release, and architecture of the host
220		operating system will be suffixed to the name of the object
221		directory created by "make obj".
222		Default: no
223
224MKHTML		If "no", don't build or install the HTML man pages.
225		Default: yes
226
227MKIEEEFP	If "no", don't add code for IEEE754/IEC60559 conformance.
228		Has no effect on most platforms.
229		Default: yes
230
231MKSTRIPIDENT	Strip the RCS IDs from program binaries and shared libraries.
232		Default: no
233
234MKINET6		If "no", disables building of INET6 (IPv6) infrastructure
235		(libraries and support programs).  This option must not be
236		set to "no" if MKX11 is not "no".
237		Default: yes
238
239MKINFO		If "no", don't build or install Info documentation from
240		Texinfo source files.
241		Default: yes
242
243MKIPFILTER	If "no", don't build or install the IP Filter programs and LKM.
244		Default: yes
245
246MKISCSI		If "no", don't build or install iSCSI library or applications
247		(depends on libpthread.)
248		Default: yes
249
250MKKDEBUG	If "yes", force building of kernel symbol info and creation
251		of netbsd.gdb in all kernel builds, independently of the
252		settings for "makeoptions DEBUG" in the kernel config file.
253
254MKKERBEROS	If "no", disables building of Kerberos v5
255		infrastructure (libraries and support programs).
256		Default: yes
257
258MKKMOD		If "no", disables building of kernel modules.
259		Default: yes
260
261MKKYUA		If "no", don't build Kyua nor its dependent library Lutok.
262		Note that setting this to "no" does not disable the build of
263		the NetBSD test suite itself; the build of the tests is
264		controlled by the MKATF knob.
265		Default: no (until the import is done and validated)
266
267MKLDAP		If "no", disables building of LDAP infrastructure
268		(libraries and support programs).
269		Default: yes
270
271MKLIBCXX	If not "no", build and install libc++.
272		Default: no
273
274MKLIBSTDCXX	If not "no", build and install libstdc++.
275		Default: yes
276
277MKLINKLIB	If "no", act as "MKLINT=no MKPICINSTALL=no MKPROFILE=no".
278		Also:
279			- don't install the .a libraries
280			- don't install _pic.a libraries on PIC systems
281			- don't build .a libraries on PIC systems
282			- don't install the .so symlink on ELF systems
283		I.e, only install the shared library (and the .so.major
284		symlink on ELF).
285		Default: yes
286
287MKLINT		If "no", don't build or install the lint libraries.
288		Default: yes
289
290MKLVM		If "no", don't build or install the logical volume manager
291		and device mapper tools and libraries
292		Default: yes
293
294MKMAN		If "no", don't build or install the man or catman pages,
295		and also acts as "MKCATPAGES=no MKHTML=no".
296		Default: yes
297
298MKMANDOC	If "yes", mandoc is built as tool and used to compile
299		catman or html pages.  A directory can be exempted by
300		defining NOMANDOC.  Individual man pages are exempted
301		if NOMANDOC.${target} is set to "yes".
302		Default: yes
303
304MKMANZ		If not "no", compress manual pages at installation time.
305		Default: no
306
307MKMDNS		If "no", disables building of mDNS infrastructure
308		(libraries and support programs).
309		Default: yes
310
311MKNLS		If "no", don't build or install the NLS files and locale
312		definition files.
313		Default: yes
314
315MKNPF		If "no", don't build or install the NPF and its modules.
316		Default: yes
317
318MKNSD		If "no", don't build or install the "nsd" DNS authoritative
319		server.
320		Default: no
321
322MKOBJ		If "no", don't enable the rule which creates objdirs,
323		and also acts as "MKOBJDIRS=no".
324		Default: yes
325
326MKOBJDIRS	If "no", don't create objdirs during a "make build".
327		Default: no
328
329MKPAM		If "no", disables building of PAM authentication
330		infrastructure (libraries and support programs).
331		Default: yes
332
333MKPCC		If "no", don't build pcc(1) or any of the PCC-related
334		libraries (libpcc, libpccsoftfloat).
335		Default: no
336
337MKPF		If "no", don't build or install the pf programs and LKM.
338		Default: yes
339
340MKPIC		If "no", don't build or install shared libraries, and
341		also acts as "MKPICLIB=no"
342		Default: yes (for MACHINE_ARCHs that support it)
343
344MKPICINSTALL	If "no", don't install the *_pic.a libraries.
345		Default: yes
346
347MKPICLIB	If "no", don't build *_pic.a libraries, and build the
348		shared object libraries from the .a libraries.
349		A symlink is installed in ${DESTDIR}/usr/lib for the
350		_pic.a library pointing to the .a library.
351		Default: yes
352
353MKPIE		If "no", create regular executables. Otherwise create
354		PIE (Position Independent Executables).
355		Default: no
356
357NOPIE		Don't create PIE (Position Independent Executables)
358		It is set internally for standalone programs.
359
360MKPIGZGZIP	If "no", only install pigz as pigz, not gzip.
361		Default: no
362
363MKPOSTFIX	If "no", don't build or install postfix(1).
364		Default: yes
365
366MKPROFILE	If "no", don't build or install the profiling (*_p.a) libraries.
367		Default: yes
368
369MKRADEONFIRMWARE If "no", install the /libdata/firmware/radeon directory,
370		which is necessary for the radeon DRM driver.
371		Default: yes on i386 and amd64, no elsewhere.
372
373MKRELRO		If "partial", set the non-PLT GOT to read-only. If "full"
374		also force immediate symbol binding.
375		Default: no
376	
377MKREPRO         If "yes", create reproducible builds. This enables
378		different switches to make two builds from the same source tree
379		result in the same build results.
380		Default: no
381
382MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
383		MKMAN=no MKNLS=no".
384		I.e, don't build catman pages, documentation, Info
385		documentation, man pages, NLS files, ...
386		Default: yes
387
388MKSKEY		If "no", disables building of S/key authentication
389		infrastructure (libraries and support programs).
390		Default: yes
391
392MKSLJIT		If "no", disables building of sljit (stack-less platform
393		independent JIT compiler) private library and tests.
394		Default: yes on amd64, i386 and sparc, no elsewhere.
395
396MKSOFTFLOAT	If not "no", build with options to enable the compiler to
397		generate output containing library calls for floating
398		point and possibly soft-float library support.
399		Default: no
400
401MKSTATICLIB	If "no", don't build or install the normal static (*.a)
402		libraries.
403		Default: yes
404
405MKSTATICPIE	Compile in support for static pie binaries. These binaries
406		use a special rcrt0.o/mcrt0.o that do the necessary relocations
407		Default: yes on platforms that support it.
408
409MKSTRIPSYM	If "yes", strip all local symbols from shared libraries;
410		the affect is equivalent to -x option of ld(1). If "no",
411		strip only temporary local symbols; the affect is equivalent
412		to -X option of ld(1). Keeping non-temporary local symbols
413		such as static function names is useful on using DTrace for
414		userland libraries and getting a backtrace from a rump kernel
415		loading shared libraries.
416		Default: yes
417
418MKTEGRAFIRMWARE	If "no", install the /libdata/firmware/nvidia directory,
419		which is necessary for the NVIDIA Tegra XHCI driver.
420		Default: yes on evbarm and evbarm64, no elsewhere.
421
422MKTOOLSDEBUG	If "yes" build the tools with debugging symbols.
423		Default: no
424
425MKTPM		If "no" then don't build the Trusted Platform Module
426		infrastructure.
427		Default: no
428
429MKUNBOUND	If not "no", build and install the "unbound" DNS resolver.
430		Default: yes
431
432MKUNPRIVED	If not "no", don't set the owner/group/mode when installing
433		files or directories, and keep a metadata log of what
434		the owner/group/mode should be.  This allows a
435		non-root "make install".
436		Default: no
437
438MKUPDATE 	If not "no", 'make install' only installs targets that are
439		more recently modified in the source directories that their
440		installed counterparts.
441		Default: no
442
443MKX11		If not "no", 'make build' also descends into 
444		src/external/mit/xorg to cross-build X11 and automatically
445		enables creation of X sets.
446		Default: no
447
448MKX11FONTS	If not "no", do not build or install the X fonts.  The xfont
449		set is still created but will be empty.
450		Default: yes
451
452MKX11MOTIF:	If "yes", build the native X11 libGLw with Motif stubs.  If
453		Motif is not installed in the default location /usr/pkg, the
454		location can be specified using the X11MOTIFPATH variable.
455		Default: no
456
457MKYP		If "no", disables building of YP (NIS)
458		infrastructure (libraries and support programs).
459		Default: yes
460
461MKZFS		If "no", do not build and install utilities and libraries
462		used to manage ZFS file system. Do not build zfs and solaris
463		compatibility kernel modules.  Note: ZFS requires 64bit
464		atomic operations.
465		Default: yes on amd64, no elsewhere.
466
467MKRUMP		If "no", do not build and install rump related headers,
468		libraries, and programs.
469		Default: yes
470
471USE_HESIOD	If "no", disables building Hesiod support into
472		various system utilities/libraries that support it.
473		If ${MKHESIOD} is "no", USE_HESIOD will also be
474		forced to "no".
475
476USE_INET6	If "no", disables building INET6 (IPv6) support into
477		various system utilities/libraries that support it.
478		If ${MKINET6} is "no", USE_INET6 will also be
479		forced to "no".
480
481USE_JEMALLOC	If "no", disables building the "jemalloc" allocator
482		designed for improved performance with threaded
483		applications.  The "phkmalloc" allocator as used up
484		before NetBSD-5.0 will be substituted.
485
486USE_KERBEROS	If "no", disables building Kerberos v5
487		support into various system utilities/libraries that
488		support it.  If ${MKKERBEROS} is "no", USE_KERBEROS
489		will also be forced to "no".
490
491USE_LDAP	If "no", disables building LDAP support into various
492		system utilities/libraries that support it.
493		If ${MKLDAP} is "no", USE_LDAP will also be forced to "no".
494
495USE_PAM		If "no", disables building PAM authentication support
496		into various system utilities/libraries that support it.
497		If ${MKPAM} is "no", USE_PAM will also be forced to "no".
498
499USE_SKEY	If "no", disables building S/key authentication
500		support into various system utilities/libraries that
501		support it.  If ${MKSKEY} is "no", USE_SKEY will
502		also be forced to "no".
503		Default: no
504
505USE_SSP		If "no", disables GCC stack protection code, which
506		detects stack overflows and aborts the program. The
507		stack protection code imposes a performance penalty
508		of about 5%.
509		Default: "no", unless "USE_FORT" is set to "yes"
510
511NOSSP		Don't compile with stack protector during build.
512		It is set internally for standalone programs.
513
514USE_FORT 	If "yes" turns on substitute wrappers for commonly used
515		functions that do not do bounds checking regularly, but
516		they could in some cases by using the gcc
517		__builtin_object_size() function to determine the buffer
518		size where it is known and detect buffer overflows.
519		These substitute functions are in /usr/include/ssp.
520		Default: depends on the part of the source tree
521
522NOFORT		Don't compile with substitute wrappers during build.
523		It is set internally for standalone programs.
524
525USE_YP		If "no", disables building YP (NIS) support into
526		various system utilities/libraries that support it.
527		If ${MKYP} is "no", USE_YP will also be forced to "no".
528
529USE_PIGZGZIP	If "no", use the host "gzip" program to compress things.
530		Otherwise, build tools/pigz, set TOOL_GZIP=${TOOL_PIGZ},
531		and use nbpigz to compress things.
532		Default: "no".
533
534COPTS.lib<lib>
535OBJCOPTS.lib<lib>
536LDADD.lib<lib>
537CPPFLAGS.lib<lib>
538CXXFLAGS.lib<lib>
539COPTS.<prog>
540OBJCCOPTS.<prog>
541LDADD.<prog>
542CPPFLAGS.<prog>
543CXXFLAGS.<prog>	These provide a way to specify additions to the associated
544		variables in a way that applies only to a particular library
545		or program.  <lib> corresponds to the LIB variable set in
546		the library's makefile.  <prog> corresponds to either PROG
547		or PROG_CXX (if set).  For example, if COPTS.libcrypto is
548		set to "-g", "-g" will be added to COPTS only when compiling
549		the crypto library.
550
551The active compiler is selected using the following variables:
552AVAILABLE_COMPILER
553		List of available compiler suites.  Processed in order
554		for selecting the active compiler for each frontend.
555HAVE_PCC	If defined, PCC is present and enabled.
556HAVE_LLVM	If defined, LLVM/Clang is present and enabled.
557UNSUPPORTED_COMPILER.xxx
558		If defined, the support for compiler "xxx" is disabled.
559
560For the frontends (CC, CPP, CXX, FC and OBJC) the following variables exist:
561ACTIVE_CC	Active compile suite for the CC frontend.
562SUPPORTED_CC	Compile suite with support for the CC frontend.
563TOOL_CC.xxx	Path to the CC frontend for compiler "xxx"
564
565=-=-=-=-=   sys.mk   =-=-=-=-=
566
567The include file <sys.mk> has the default rules for all makes, in the BSD
568environment or otherwise.  You probably don't want to touch this file.
569
570=-=-=-=-=   bsd.own.mk   =-=-=-=-=
571
572The include file <bsd.own.mk> contains source tree configuration parameters,
573such as the owners, groups, etc. for both manual pages and binaries, and
574a few global "feature configuration" parameters.
575
576It has no targets.
577
578To get system-specific configuration parameters, <bsd.own.mk> will try to
579include the file specified by the "MAKECONF" variable.  If MAKECONF is not
580set, or no such file exists, the system make configuration file, /etc/mk.conf
581is included.  These files may define any of the variables described below.
582
583<bsd.own.mk> sets the following variables, if they are not already defined
584(defaults are in brackets):
585
586NETBSDSRCDIR	Top of the NetBSD source tree.
587		If _SRC_TOP_ != "", that will be used as the default,
588		otherwise BSDSRCDIR will be used as the default.
589		Various makefiles within the NetBSD source tree will
590		use this to reference the top level of the source tree.
591
592_SRC_TOP_	Top of the system source tree, as determined by <bsd.own.mk>
593		based on the presence of tools/ and build.sh.  This variable
594		is "internal" to <bsd.own.mk>, although its value is only
595		determined once and then propagated to all sub-makes.
596
597_NETBSD_VERSION_DEPENDS
598		A list of files which contain information about
599		the version of the NetBSD being built.  This is
600		defined only if the current directory appears
601		to be inside a NetBSD source tree.  The list of
602		files includes ${NETBSDSRCDIR}/sys/sys/param.h
603		(which contains the kernel version number),
604		${NETBSDSRCDIR}/sys/conf/newvers.sh and
605		${NETBSDSRCDIR}/sys/conf/osrelease.sh (which
606		interpret the information in sys/sys/param.h), and
607		${_SRC_TOP_OBJ_}/params (which is an optional file,
608		created by "make build" in ${_SRC_TOP_}/Makefile,
609		containing all the variables that may influence the
610		build).
611
612		Targets that depend on the NetBSD version, or on
613		variables defined at build time, can declare a
614		dependency on ${_NETBSD_VERSION_DEPENDS}, like this:
615
616			version.c: ${_NETBSD_VERSION_DEPENDS}
617				commands to create version.c
618
619BSDSRCDIR	The real path to the system sources, so that 'make obj'
620		will work correctly.  [/usr/src]
621
622BSDOBJDIR	The real path to the system 'obj' tree, so that 'make obj'
623		will work correctly.  [/usr/obj]
624
625BINGRP		Binary group.  [wheel]
626
627BINOWN		Binary owner.  [root]
628
629BINMODE		Binary mode.  [555]
630
631NONBINMODE	Mode for non-executable files.  [444]
632
633MANDIR		Base path for manual installation.  [/usr/share/man/cat]
634
635MANGRP		Manual group.  [wheel]
636
637MANOWN		Manual owner.  [root]
638
639MANMODE		Manual mode.  [${NONBINMODE}]
640
641MANINSTALL	Manual installation type.  Space separated list:
642			catinstall, htmlinstall, maninstall
643		Default value derived from MKCATPAGES and MKHTML.
644
645LDSTATIC	Control program linking; if set blank, link everything
646		dynamically.  If set to "-static", link everything statically.
647		If not set, programs link according to their makefile.
648
649LIBDIR		Base path for library installation.  [/usr/lib]
650
651LINTLIBDIR	Base path for lint(1) library installation.  [/usr/libdata/lint]
652
653LIBGRP		Library group.  [${BINGRP}]
654
655LIBOWN		Library owner.  [${BINOWN}]
656
657LIBMODE		Library mode.  [${NONBINMODE}]
658
659DOCDIR		Base path for system documentation (e.g. PSD, USD, etc.)
660	        installation.  [/usr/share/doc]
661
662DOCGRP		Documentation group.  [wheel]
663
664DOCOWN		Documentation owner.  [root]
665
666DOCMODE		Documentation mode.  [${NONBINMODE}]
667
668GZIP_N_FLAG	Flags to pass to TOOL_GZIP to prevent it from inserting
669		file names or timestamps in the compressed output.
670		[-n, or -nT when TOOL_GZIP is really TOOL_PIGZ]
671
672NLSDIR		Base path for Native Language Support files installation.
673		[/usr/share/nls]
674
675NLSGRP		Native Language Support files group.  [wheel]
676
677NLSOWN		Native Language Support files owner.  [root]
678
679NLSMODE		Native Language Support files mode.  [${NONBINMODE}]
680
681X11SRCDIR	The path to the xsrc tree.  [${NETBSDSRCDIR}/../xsrc,
682		if that exists; otherwise /usr/xsrc]
683
684X11SRCDIR.local	The path to the local X11 src tree.  [${X11SRCDIR}/local]
685
686X11SRCDIR.lib<package>
687X11SRCDIR.<package>
688		The path to the xorg src tree for the specificed package>.
689		[${X11SRCDIR}/external/mit/xorg/<package>/dist]
690
691X11ROOTDIR	Root directory of the X11 installation.  [/usr/X11R7]
692
693X11BINDIR	X11 bin directory.  [${X11ROOTDIR}/bin]
694
695X11FONTDIR	X11 font directory.  [${X11ROOTDIR}/lib/X11/fonts]
696
697X11INCDIR	X11 include directory.  [${X11ROOTDIR}/include]
698
699X11LIBDIR	X11 lib/x11 (config) directory.  [${X11ROOTDIR}/lib/X11]
700
701X11MANDIR	X11 manual directory.  [${X11ROOTDIR}/man]
702
703X11USRLIBDIR	X11 library directory.  [${X11ROOTDIR}/lib]
704
705STRIPFLAG	The flag passed to the install program to cause the binary
706		to be stripped.  This is to be used when building your
707		own install script so that the entire system can be made
708		stripped/not-stripped using a single knob.  []
709
710COPY		The flag passed to the install program to cause the binary
711		to be copied rather than moved.  This is to be used when
712		building our own install script so that the entire system
713		can either be installed with copies, or with moves using
714		a single knob.  [-c]
715
716MAKEDIRTARGETENV
717		Environment variables passed to the child make process
718		invoked by MAKEDIRTARGET.
719
720MAKEDIRTARGET dir target [params]
721		Runs "cd $${dir} && ${MAKE} [params] $${target}",
722		displaying a "pretty" message whilst doing so.
723
724RELEASEMACHINEDIR
725		Subdirectory used below RELEASEDIR when building
726		a release.  [${MACHINE}]
727
728RELEASEMACHINE	Subdirectory or path component used for the following
729		paths:
730			distrib/${RELEASEMACHINE}
731			distrib/notes/${RELEASEMACHINE}
732			etc/etc.${RELEASEMACHINE}
733		Used when building a release.  [${MACHINE}]
734
735Additionally, the following variables may be set by <bsd.own.mk> or in a
736make configuration file to modify the behavior of the system build
737process (default values are in brackets along with comments, if set by
738<bsd.own.mk>):
739
740USETOOLS	Indicates whether the tools specified by ${TOOLDIR} should
741		be used as part of a build in progress.
742		Supported values:
743
744		yes	Use the tools from TOOLDIR.
745			Must be set to this if cross-compiling.
746
747		no	Do not use the tools from TOOLDIR, but refuse to
748			build native compilation tool components that are
749			version-specific for that tool.
750
751		never	Do not use the tools from TOOLDIR, even when
752			building native tool components.  This is similar to
753			the traditional NetBSD build method, but does not
754			verify that the compilation tools in use are
755			up-to-date enough in order to build the tree
756			successfully.  This may cause build or runtime
757			problems when building the whole NetBSD source tree.
758
759		Default: "yes" if building all or part of a whole NetBSD
760		source tree (detected automatically); "no" otherwise
761		(to preserve traditional semantics of the <bsd.*.mk>
762		make(1) include files).
763
764OBJECT_FMT	Object file format.  [set to "ELF" on architectures that
765		use ELF -- currently all architectures].
766
767TOOLCHAIN_MISSING
768		If not "no", this indicates that the platform being built
769		does not have a working in-tree toolchain.  If the
770		${MACHINE_ARCH} in question falls into this category,
771		TOOLCHAIN_MISSING is conditionally assigned the value "yes".
772		Otherwise, the variable is unconditionally assigned the
773		value "no".
774		If not "no", ${MKBINUTILS}, ${MKGCC}, and ${MKGDB} are
775		unconditionally assigned the value "no".
776
777EXTERNAL_TOOLCHAIN
778		This variable is not directly set by <bsd.own.mk>, but
779		including <bsd.own.mk> is the canonical way to gain
780		access to this variable.  The variable should be defined
781		either in the user's environment or in the user's mk.conf
782		file.  If defined, this variable indicates the root of
783		an external toolchain which will be used to build the
784		tree.  For example, if a platform is a ${TOOLCHAIN_MISSING}
785		platform, EXTERNAL_TOOLCHAIN can be used to re-enable the
786		cross-compile framework.
787
788		If EXTERNAL_TOOLCHAIN is defined, ${MKGCC} is unconditionally
789		assigned the value "no", since the external version of the
790		compiler may not be able to build the library components of
791		the in-tree compiler.
792
793		NOTE: This variable is not yet used in as many places as
794		it should be.  Expect the exact semantics of this variable
795		to change in the short term as parts of the cross-compile
796		framework continue to be cleaned up.
797
798The following variables are defined to commands to perform the
799appropriate operation, with the default in [brackets].  Note that
800the defaults change if USETOOLS == "yes":
801
802TOOL_AMIGAAOUT2BB	aout to Amiga bootblock converter.  [amiga-aout2bb]
803
804TOOL_AMIGAELF2BB	ELF to Amiga bootblock converter.  [amiga-elf2bb]
805
806TOOL_AMIGATXLT		Amige assembly language format translator.  [amiga-txlt]
807
808TOOL_ASN1_COMPILE	ASN1 compiler.  [asn1_compile]
809
810TOOL_AWK		Pattern-directed scanning/processing language.  [awk]
811
812TOOL_CAP_MKDB		Create capability database.  [cap_mkdb]
813
814TOOL_CAT		Concatenate and print files.  [cat]
815
816TOOL_CKSUM		Display file checksums.  [cksum]
817
818TOOL_COMPILE_ET		Error table compiler.  [compile_et]
819
820TOOL_CONFIG		Build kernel compilation directories.  [config]
821
822TOOL_CRUNCHGEN		Generate crunched binary build environment.  [crunchgen]
823
824TOOL_CTAGS		Create a tags file.  [ctags]
825
826TOOL_DB			Manipulate db(3) databases.  [db]
827
828TOOL_DISKLABEL		Read and write disk pack label.  [disklabel]
829
830TOOL_EQN		Format equations for groff.  [eqn]
831
832TOOL_FDISK		MS-DOS partition maintenance program.  [fdisk]
833
834TOOL_FGEN		IEEE 1275 Open Firmware FCode Tokenizer.  [fgen]
835
836TOOL_GENASSYM		Generate constants for assembly files.  [genassym]
837
838TOOL_GENCAT		Generate NLS message catalogs.  [gencat]
839
840TOOL_GMAKE		GNU make utility.  [gmake]
841
842TOOL_GREP		Print lines matching a pattern.  [grep]
843
844TOOL_GROFF		Front end for groff document formatting system.  [groff]
845
846TOOL_GZIP		Compression/decompression tool.  [gzip]
847
848TOOL_GZIP_N		Same as TOOL_GZIP, plus a command line option to
849			prevent it from inserting file names or timestamps
850			into the compressed output.
851			[${TOOL_GZIP} ${GZIP_N_FLAG}]
852
853TOOL_HEXDUMP		Ascii, decimal, hexadecimal, octal dump.  [hexdump]
854
855TOOL_HP300MKBOOT	Make bootable image for hp300.  [hp300-mkboot]
856
857TOOL_HPPAMKBOOT		Make bootable image for hppa.  [hppa-mkboot]
858
859TOOL_INDXBIB		Make bibliographic database's inverted index.  [indxbib]
860
861TOOL_INSTALLBOOT	Install disk bootstrap software.  [installboot]
862
863TOOL_INSTALL_INFO	Update info/dir entries.  [install-info]
864
865TOOL_JOIN		Relational database operator.  [join]
866
867TOOL_M4			M4 macro language processor.  [m4]
868
869TOOL_MACPPCFIXCOFF	Fix up xcoff headers for macppc.  [macppc-fixcoff]
870
871TOOL_MAKEFS		Create file system image from directory tree.  [makefs]
872
873TOOL_MAKEINFO		Translate Texinfo documents.  [makeinfo]
874
875TOOL_MAKEWHATIS		Create a whatis.db database.  [makewhatis]
876
877TOOL_MDSETIMAGE		Set kernel RAM disk image.  [mdsetimage]
878
879TOOL_MENUC		Menu compiler.  [menuc]
880
881TOOL_MIPSELF2ECOFF	Convert ELF-format executable to ECOFF for mips.
882			[mips-elf2ecoff]
883
884TOOL_MKCSMAPPER		Make charset mapping table.  [mkcsmapper]
885
886TOOL_MKESDB		Make encoding scheme database.  [mkesdb]
887
888TOOL_MKLOCALE		Make LC_CTYPE locale files.  [mklocale]
889
890TOOL_MKMAGIC		Create database for file(1).  [file]
891
892TOOL_MKNOD		Make device special file.  [mknod]
893
894TOOL_MKTEMP		Make (unique) temporary file name.  [mktemp]
895
896TOOL_MSGC		Simple message list compiler.  [msgc]
897
898TOOL_MTREE		Map a directory hierarchy.  [mtree]
899
900TOOL_NCDCS		Turn ELF kernel into a NCD firmware image. [ncdcs]
901
902TOOL_PAX		Manipulate file archives and copy directories.  [pax]
903
904TOOL_PIC		Compile pictures for groff.  [pic]
905
906TOOL_PIGZ		Parallel compressor.  [pigz]
907
908TOOL_POWERPCMKBOOTIMAGE	Make bootable image for powerpc.  [powerpc-mkbootimage]
909
910TOOL_PWD_MKDB		Generate the password databases.  [pwd_mkdb]
911
912TOOL_REFER		Preprocess bibliographic references for groff.  [refer]
913
914TOOL_ROFF_ASCII		Generate ASCII groff output.  [nroff]
915
916TOOL_ROFF_DVI		Generate DVI groff output.  [${TOOL_GROFF} -Tdvi]
917
918TOOL_ROFF_HTML		Generate HTML groff output.
919			[${TOOL_GROFF} -Tlatin1 -mdoc2html]
920
921TOOL_ROFF_PS		Generate PS groff output.  [${TOOL_GROFF} -Tps]
922
923TOOL_ROFF_RAW		Generate "raw" groff output.  [${TOOL_GROFF} -Z]
924
925TOOL_RPCGEN		Remote Procedure Call (RPC) protocol compiler.  [rpcgen]
926
927TOOL_SED		Stream editor.  [sed]
928
929TOOL_SOELIM		Eliminate .so's from groff input.  [soelim]
930
931TOOL_SPARKCRC		Generate a crc suitable for use in a sparkive file.
932			[sparkcrc]
933
934TOOL_STAT		Display file status.  [stat]
935
936TOOL_STRFILE		Create a random access file for storing strings.
937			[strfile]
938
939TOOL_SUNLABEL		Read or modify a SunOS disk label.  [sunlabel]
940
941TOOL_TBL		Format tables for groff.  [tbl]
942
943TOOL_UUDECODE		Uudecode a binary file.  [uudecode]
944
945TOOL_VGRIND		Grind nice listings of programs.  [vgrind -f]
946
947TOOL_ZIC		Time zone compiler.  [zic]
948
949For each possible value of MACHINE_CPU, MACHINES.${MACHINE_CPU} contain a
950list of what ports can be built for it.  This keeps those definitions in
951centralized place.
952
953<bsd.own.mk> is generally useful when building your own Makefiles so that
954they use the same default owners etc. as the rest of the tree.
955
956
957=-=-=-=-=   bsd.clean.mk   =-=-=-=-=
958
959The include file <bsd.clean.mk> defines the clean and cleandir
960targets.  It uses the following variables:
961
962CLEANFILES	Files to remove for both the clean and cleandir targets.
963
964CLEANDIRFILES	Files to remove for the cleandir target, but not for
965		the clean target.
966
967MKCLEANSRC	Controls whether or not the clean and cleandir targets
968		will delete files from both the object directory,
969		${.OBJDIR}, and the source directory, ${.CURDIR}.
970
971		If MKCLEANSRC is set to "no", then the file names in
972		CLEANFILES or CLEANDIRFILES are interpreted relative
973		to the object directory, ${.OBJDIR}.  This is the
974		traditional behaviour.
975
976		If MKCLEANSRC is set to "yes", then the file deletion
977		is performed relative to both the object directory,
978		${.OBJDIR}, and the source directory, ${.CURDIR}.  (This
979		has no effect if ${.OBJDIR} is the same as ${.CURDIR}.)
980		Deleting files from ${.CURDIR} is intended to remove
981		stray output files that had been left in the source
982		directory by an earlier build that did not use object
983		directories.
984
985		The default is MKCLEANSRC=yes.  If you always build with
986		separate object directories, and you are sure that there
987		are no stray files in the source directories, then you
988		may set MKCLEANSRC=no to save some time.
989
990MKCLEANVERIFY	Controls whether or not the clean and cleandir targets
991		will verify that files have been deleted.
992
993		If MKCLEANVERIFY is set to "no", then the files will
994		be deleted using a "rm -f" command, and its success or
995		failure will be ignored.
996
997		If MKCLEANVERIFY is set to "yes", then the success of
998		the "rm -f" command will be verified using an "ls"
999		command.
1000
1001		The default is MKCLEANVERIFY=yes.  If you are sure that
1002		there will be no problems caused by file permissions,
1003		read-only file systems, or the like, then you may set
1004		MKCLEANVERIFY=no to save some time.
1005
1006To use the clean and cleandir targets defined in <bsd.clean.mk>, other
1007Makefiles or bsd.*.mk files should append file names to the CLEANFILES
1008or CLEANDIRFILES variables.  For example:
1009
1010	    CLEANFILES+= a.out
1011	    CLEANDIRFILES+= .depend
1012
1013	    .include <bsd.clean.mk>
1014
1015The files listed in CLEANFILES and CLEANDIRFILES must not be
1016directories, because the potential risk from running "rm -rf" commands
1017in bsd.clean.mk is considered too great.  If you want to recursively
1018delete a directory as part of "make clean" or "make cleandir" then you
1019need to provide your own target.
1020
1021=-=-=-=-=   bsd.dep.mk   =-=-=-=-=
1022
1023The include file <bsd.dep.mk> contains the default targets for building
1024.depend files.  It creates .d files from entries in SRCS and DPSRCS
1025that are C, C++, or Objective C source files, and builds .depend from the
1026.d files.  All other files in SRCS and all of DPSRCS will be used as
1027dependencies for the .d files.  In order for this to function correctly,
1028it should be .included after all other .mk files and directives that may
1029modify SRCS or DPSRCS.  It uses the following variables:
1030
1031SRCS		List of source files to build the program.
1032
1033DPSRCS		List of source files which are needed for generating
1034		dependencies, but are not needed in ${SRCS}.
1035
1036
1037=-=-=-=-=   bsd.files.mk   =-=-=-=-=
1038
1039The include file <bsd.files.mk> handles the FILES variables and is included
1040from <bsd.lib.mk> and <bsd.prog.mk>, and uses the following variables:
1041
1042FILES		The list of files to install.
1043
1044CONFIGFILES	Similar semantics to FILES, except that the files
1045		are installed by the `configinstall' target,
1046		not the `install' target.
1047		The FILES* variables documented below also apply.
1048
1049FILESOWN	File owner.  [${BINOWN}]
1050
1051FILESGRP	File group.  [${BINGRP}]
1052
1053FILESMODE	File mode.  [${NONBINMODE}]
1054
1055FILESDIR	The location to install the files.
1056
1057FILESNAME	Optional name to install each file as.
1058
1059FILESOWN_<fn>	File owner of the specific file <fn>.
1060
1061FILESGRP_<fn>	File group of the specific file <fn>.
1062
1063FILESMODE_<fn>	File mode of the specific file <fn>.
1064
1065FILESDIR_<fn>	The location to install the specific file <fn>.
1066
1067FILESNAME_<fn>	Optional name to install <fn> as.
1068
1069FILESBUILD	If this variable is defined, then its value will be
1070		used as the default for all FILESBUILD_<fn> variables.
1071		Otherwise, the default will be "no".
1072
1073FILESBUILD_<fn>	A value different from "no" will add the file to the list of
1074		targets to be built by `realall'.  Users of that variable
1075		should provide a target to build the file.
1076
1077
1078BUILDSYMLINKS	List of two word items:
1079			lnsrc lntgt
1080		For each lnsrc item, create a symlink named lntgt.
1081		The lntgt symlinks are removed by the cleandir target.
1082
1083UUDECODE_FILES	List of files which are stored as <file>.uue in the source
1084		tree. Each one will be decoded with ${TOOL_UUDECODE}.
1085		The source files have a `.uue' suffix, the generated files do
1086		not.
1087
1088UUDECODE_FILES_RENAME_<fn>
1089		Rename the output from the decode to the provided name.
1090		
1091		*NOTE: These files are simply decoded, with no install or other
1092		       rule applying implicitly except being added to the clean
1093		       target.
1094
1095=-=-=-=-=   bsd.gcc.mk   =-=-=-=-=
1096
1097The include file <bsd.gcc.mk> computes various parameters related to GCC
1098support libraries.  It defines no targets.  <bsd.own.mk> MUST be included
1099before <bsd.gcc.mk>.
1100
1101The primary users of <bsd.gcc.mk> are <bsd.prog.mk> and <bsd.lib.mk>, each
1102of which need to know where to find certain GCC support libraries.
1103
1104The behavior of <bsd.gcc.mk> is influenced by the EXTERNAL_TOOLCHAIN variable,
1105which is generally set by the user.  If EXTERNAL_TOOLCHAIN it set, then
1106the compiler is asked where to find the support libraries, otherwise the
1107support libraries are found in ${DESTDIR}/usr/lib.
1108
1109<bsd.gcc.mk> sets the following variables:
1110
1111_GCC_CRTBEGIN	The full path name to crtbegin.o.
1112
1113_GCC_CRTBEGINS	The full path name to crtbeginS.o.
1114
1115_GCC_CRTEND	The full path name to crtend.o.
1116
1117_GCC_CRTENDS	The full path name to crtendS.o.
1118
1119_GCC_LIBGCCDIR	The directory where libgcc.a is located.
1120
1121
1122=-=-=-=-=   bsd.inc.mk   =-=-=-=-=
1123
1124The include file <bsd.inc.mk> defines the includes target and uses the
1125variables:
1126
1127INCS		The list of include files.
1128
1129INCSDIR		The location to install the include files.
1130
1131INCSNAME	Target name of the include file, if only one; same as
1132		FILESNAME, but for include files.
1133
1134INCSYMLINKS	Similar to SYMLINKS in <bsd.links.mk>, except that these
1135		are installed in the 'includes' target and not the
1136		(much later) 'install' target.
1137
1138INCSNAME_<file>	The name file <file> should be installed as, if not <file>,
1139		same as FILESNAME_<file>, but for include files.
1140
1141
1142=-=-=-=-=   bsd.info.mk   =-=-=-=-=
1143
1144The include file <bsd.info.mk> is used to generate and install GNU Info
1145documentation from respective Texinfo source files.  It defines three
1146implicit targets (.txi.info, .texi.info, and .texinfo.info), and uses the
1147following variables:
1148
1149TEXINFO		List of Texinfo source files.  Info documentation will
1150		consist of single files with the extension replaced by
1151		.info.
1152
1153INFOFLAGS	Flags to pass to makeinfo.  []
1154
1155
1156=-=-=-=-=   bsd.kernobj.mk   =-=-=-=-=
1157
1158The include file <bsd.kernobj.mk> defines variables related to the
1159location of kernel sources and object directories.
1160
1161KERNSRCDIR	Is the location of the top of the kernel src.
1162		[${_SRC_TOP_}/sys]
1163
1164KERNARCHDIR	Is the location of the machine dependent kernel sources.
1165		[arch/${MACHINE}]
1166
1167KERNCONFDIR	Is where the configuration files for kernels are found.
1168		[${KERNSRCDIR}/${KERNARCHDIR}/conf]
1169
1170KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
1171		instance will be compiled in ${KERNOBJDIR}/GENERIC.
1172		The default value is
1173		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
1174		if it exists or the target 'obj' is being made.
1175		Otherwise the default is
1176		${KERNSRCDIR}/${KERNARCHDIR}/compile.
1177
1178It is important that Makefiles (such as those under src/distrib) that
1179wish to find compiled kernels use <bsd.kernobj.mk> and ${KERNOBJDIR}
1180rather than make assumptions about the location of the compiled kernel.
1181
1182
1183=-=-=-=-=   bsd.kinc.mk   =-=-=-=-=
1184
1185The include file <bsd.kinc.mk> defines the many targets (includes,
1186subdirectories, etc.), and is used by kernel makefiles to handle
1187include file installation.  It is intended to be included alone, by
1188kernel Makefiles.  It uses similar variables to <bsd.inc.mk>.
1189Please see <bsd.kinc.mk> for more details, and keep the documentation
1190in that file up to date.
1191
1192=-=-=-=-=   bsd.syscall.mk =-=-=-=-=
1193
1194The include file <bsd.syscall.mk> contains the logic to create syscall
1195files for various emulations. It includes <bsd.kinc.mk> to handle the
1196rest of the targets.
1197
1198=-=-=-=-=   bsd.lib.mk   =-=-=-=-=
1199
1200The include file <bsd.lib.mk> has support for building libraries.  It has
1201the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
1202includes, install, lint, and tags.  Additionally, it has a checkver target
1203which checks for installed shared object libraries whose version is greater
1204that the version of the source. It has a limited number of suffixes,
1205consistent with the current needs of the BSD tree.  <bsd.lib.mk> includes
1206<bsd.shlib.mk> to get shared library parameters.
1207
1208It sets/uses the following variables:
1209
1210LIB		The name of the library to build.
1211
1212LIBDIR		Target directory for libraries.
1213
1214MKARZERO	Normally, ar(1) sets the timestamps, uid, gid and
1215		permissions in files inside its archives to those of
1216		the file it was fed. This leads to non-reproducible
1217		builds. If MKARZERO is set to "yes" (default is the
1218		same as MKREPRO, or "no" if MKREPRO is not defined),
1219		then the "D" flag is passed to ar, causing the
1220		timestamp, uid and gid to be zeroed and the file
1221		permissions to be set to 644. This allows .a files
1222		from different builds to be bit identical.
1223
1224SHLIBINSTALLDIR	Target directory for shared libraries if ${USE_SHLIBDIR}
1225		is not "no".
1226
1227SHLIB_MAJOR
1228SHLIB_MINOR
1229SHLIB_TEENY	Major, minor, and teeny version numbers of shared library
1230
1231USE_SHLIBDIR	If not "no", use ${SHLIBINSTALLDIR} instead of ${LIBDIR}
1232		as the path to install shared libraries to.
1233		USE_SHLIBDIR must be defined before <bsd.own.mk> is included.
1234		Default: no
1235
1236LIBISMODULE	If not "no", install as ${LIB}.so (without the "lib" prefix),
1237		and act as "MKDEBUGLIB=no MKLINT=no MKPICINSTALL=no
1238		MKPROFILE=no MKSTATICLIB=no".
1239		Default: no
1240
1241LIBISPRIVATE	If not "no", act as "MKDEBUGLIB=no MKLINT=no MKPIC=no
1242		MKPROFILE=no", and don't install the (.a) library.
1243		This is useful for "build only" helper libraries.
1244		Default: no
1245
1246LIBISCXX	If not "no", Use ${CXX} instead of ${CC} to link
1247		shared libraries.
1248		This is useful for C++ libraries.
1249		Default: no
1250
1251LINTLIBDIR	Target directory for lint libraries.
1252
1253LIBGRP		Library group.
1254
1255LIBOWN		Library owner.
1256
1257LIBMODE		Library mode.
1258
1259LDADD		Additional loader objects.
1260
1261MAN		The manual pages to be installed (use a .1 - .9 suffix).
1262
1263NOCHECKVER_<library>
1264NOCHECKVER	If set, disables checking for installed shared object
1265		libraries with versions greater than the source.  A
1266		particular library name, without the "lib" prefix, may
1267		be appended to the variable name to disable the check for
1268		only that library.
1269
1270SRCS		List of source files to build the library.  Suffix types
1271		.s, .c, and .f are supported.  Note, .s files are preferred
1272		to .c files of the same name.  (This is not the default for
1273		versions of make.)
1274
1275LIBDPLIBS	A list of the tuples:
1276			libname  path-to-srcdir-of-libname
1277
1278		For each tuple;
1279		     *	LIBDO.libname contains the .OBJDIR of the library
1280			`libname', and if it is not set it is determined
1281			from the srcdir and added to MAKEOVERRIDES (the
1282			latter is to allow for build time optimization).
1283		     *	LDADD gets  -L${LIBDO.libname} -llibname    added.
1284		     *	DPADD gets  ${LIBDO.libname}/liblibname.so  or
1285				    ${LIBDO.libname}/liblibname.a   added.
1286
1287		The special value "_external" for LIBDO.lib makes the
1288		build system to assume the library comes from outside
1289		of the NetBSD source tree and only causes -llibname
1290		to be added to LDADD.
1291
1292		This variable may be used for individual libraries, as
1293		well as in parent directories to cache common libraries
1294		as a build-time optimization.
1295
1296The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
1297if it exists, as well as the include file <bsd.man.mk>.
1298
1299It has rules for building profiled objects; profiled libraries are
1300built by default.
1301
1302Libraries are ranlib'd when made.
1303
1304
1305=-=-=-=-=   bsd.links.mk   =-=-=-=-=
1306
1307The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
1308and is included from from <bsd.lib.mk> and <bsd.prog.mk>.
1309
1310LINKSOWN, LINKSGRP, and LINKSMODE, are relevant only if a metadata log
1311is used. The defaults may be modified by other bsd.*.mk files which
1312include bsd.links.mk.  In the future, these variables may be replaced
1313by a method for explicitly recording hard links in a metadata log.
1314
1315LINKS		The list of hard links, consisting of pairs of paths:
1316			source-file target-file
1317		${DESTDIR} is prepended to both paths before linking.
1318		For example, to link /bin/test and /bin/[, use:
1319			LINKS=/bin/test /bin/[
1320
1321CONFIGLINKS	Similar semantics to LINKS, except that the links
1322		are installed by the `configinstall' target,
1323		not the `install' target.
1324
1325SYMLINKS	The list of symbolic links, consisting of pairs of paths:
1326			source-file target-file
1327		${DESTDIR} is only prepended to target-file before linking.
1328		For example, to symlink /usr/bin/tar to /bin/tar resulting
1329		in ${DESTDIR}/usr/bin/tar -> /bin/tar:
1330			SYMLINKS=/bin/tar /usr/bin/tar
1331
1332CONFIGSYMLINKS	Similar semantics to SYMLINKS, except that the symbolic links
1333		are installed by the `configinstall' target,
1334		not the `install' target.
1335
1336LINKSOWN	Link owner.  [${BINOWN}]
1337
1338LINKSGRP	Link group.  [${BINGRP}]
1339
1340LINKSMODE	Link mode.  [${NONBINMODE}]
1341
1342LINKSOWN_<fn>	Link owner of the specific file <fn>.
1343
1344LINKSGRP_<fn>	Link group of the specific file <fn>.
1345
1346LINKSMODE_<fn>	Link mode of the specific file <fn>.
1347
1348
1349=-=-=-=-=   bsd.man.mk   =-=-=-=-=
1350
1351The include file <bsd.man.mk> handles installing manual pages and their
1352links.
1353
1354It has a three targets:
1355
1356	catinstall:
1357		Install the preformatted manual pages and their links.
1358	htmlinstall:
1359		Install the HTML manual pages and their links.
1360	maninstall:
1361		Install the manual page sources and their links.
1362
1363It sets/uses the following variables:
1364
1365MANDIR		Base path for manual installation.
1366
1367MANGRP		Manual group.
1368
1369MANOWN		Manual owner.
1370
1371MANMODE		Manual mode.
1372
1373MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
1374		or "/tahoe" for machine specific manual pages.
1375
1376MAN		The manual pages to be installed (use a .1 - .9 suffix).
1377
1378MLINKS		List of manual page links (using a .1 - .9 suffix).  The
1379		linked-to file must come first, the linked file second,
1380		and there may be multiple pairs.
1381
1382The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
1383it exists.
1384
1385
1386=-=-=-=-=   bsd.obj.mk   =-=-=-=-=
1387
1388The include file <bsd.obj.mk> defines targets related to the creation
1389and use of separated object and source directories.
1390
1391If an environment variable named MAKEOBJDIRPREFIX is set, make(1) uses
1392${MAKEOBJDIRPREFIX}${.CURDIR} as the name of the object directory if
1393it exists.  Otherwise make(1) looks for the existence of a
1394subdirectory (or a symlink to a directory) of the source directory
1395into which built targets should be placed.  If an environment variable
1396named MAKEOBJDIR is set, make(1) uses its value as the name of the
1397object directory; failing that, make first looks for a subdirectory
1398named "obj.${MACHINE}", and if that doesn't exist, it looks for "obj".
1399
1400Object directories are not created automatically by make(1) if they
1401don't exist; you need to run a separate "make obj".  (This will happen
1402during a top-level build if "MKOBJDIRS" is set to a value other than
1403"no").  When the source directory is a subdirectory of ${BSDSRCDIR} --
1404and this is determined by a simple string prefix comparison -- object
1405directories are created in a separate object directory tree, and a
1406symlink to the object directory in that tree is created in the source
1407directory; otherwise, "make obj" assumes that you're not in the main
1408source tree and that it's not safe to use a separate object tree.
1409
1410Several variables used by <bsd.obj.mk> control exactly what
1411directories and links get created during a "make obj":
1412
1413MAKEOBJDIR	If set, this is the component name of the object
1414		directory.
1415
1416OBJMACHINE	If this is set but MAKEOBJDIR is not set, creates
1417		object directories or links named "obj.${MACHINE}";
1418		otherwise, just creates ones named "obj".
1419
1420USR_OBJMACHINE  If set, and the current directory is a subdirectory of
1421		${BSDSRCDIR}, create object directory in the
1422		corresponding subdirectory of ${BSDOBJDIR}.${MACHINE};
1423		otherwise, create it in the corresponding subdirectory
1424		of ${BSDOBJDIR}
1425
1426BUILDID		If set, the contents of this variable are appended
1427		to the object directory name.  If OBJMACHINE is also
1428		set, ".${BUILDID}" is added after ".${MACHINE}".
1429
1430
1431=-=-=-=-=   bsd.prog.mk   =-=-=-=-=
1432
1433The include file <bsd.prog.mk> handles building programs from one or
1434more source files, along with their manual pages.  It has a limited number
1435of suffixes, consistent with the current needs of the BSD tree.
1436<bsd.prog.mk> includes <bsd.shlib.mk> to get shared library parameters.
1437
1438It has eight targets:
1439
1440	all:
1441		build the program and its manual page.  This also
1442		creates a GDB initialization file (.gdbinit) in
1443		the objdir.  The .gdbinit file sets the shared library
1444		prefix to ${DESTDIR} to facilitate cross-debugging.
1445	clean:
1446		remove the program, any object files and the files a.out,
1447		Errs, errs, mklog, and ${PROG}.core.
1448	cleandir:
1449		remove all of the files removed by the target clean, as
1450		well as .depend, tags, and any manual pages.
1451		`distclean' is a synonym for `cleandir'.
1452	depend:
1453		make the dependencies for the source files, and store
1454		them in the file .depend.
1455	includes:
1456		install any header files.
1457	install:
1458		install the program and its manual pages; if the Makefile
1459		does not itself define the target install, the targets
1460		beforeinstall and afterinstall may also be used to cause
1461		actions immediately before and after the install target
1462		is executed.
1463	lint:
1464		run lint on the source files
1465	tags:
1466		create a tags file for the source files.
1467
1468It sets/uses the following variables:
1469
1470BINGRP		Binary group.
1471
1472BINOWN		Binary owner.
1473
1474BINMODE		Binary mode.
1475
1476CLEANDIRFILES	Additional files to remove for the cleandir target.
1477
1478CLEANFILES	Additional files to remove for the clean and cleandir targets.
1479
1480CONFIGOPTS	Additional flags to config(1) when building kernels.
1481
1482COPTS		Additional flags to the compiler when creating C objects.
1483
1484COPTS.<fn>	Additional flags to the compiler when creating the
1485		C objects for <fn>.
1486		For <fn>.[ly], "<fn>.c" must be used.
1487
1488CPUFLAGS	Additional flags to the compiler/assembler to select
1489		CPU instruction set options, CPU tuning options, etc.
1490
1491CPUFLAGS.<fn>	Additional flags to the compiler/assembler for <fn>.
1492		For <fn>.[ly], "<fn>.c" must be used.
1493
1494CPPFLAGS	Additional flags to the C pre-processor.
1495
1496CPPFLAGS.<fn>	Additional flags to the C pre-processor for <fn>.
1497		For <fn>.[ly], "<fn>.c" must be used.
1498
1499GDBINIT		List of GDB initialization files to add to "source"
1500		directives in the .gdbinit file that is created in the
1501		objdir.
1502
1503LDADD		Additional loader objects.  Usually used for libraries.
1504		For example, to load with the compatibility and utility
1505		libraries, use:
1506
1507			LDADD+=-lutil -lcompat
1508
1509LDFLAGS		Additional linker flags (passed to ${CC} during link).
1510
1511LINKS		See <bsd.links.mk>
1512
1513OBJCOPTS	Additional flags to the compiler when creating ObjC objects.
1514
1515OBJCOPTS.<fn>	Additional flags to the compiler when creating the
1516		ObjC objects for <fn>.
1517		For <fn>.[ly], "<fn>.c" must be used.
1518
1519SYMLINKS	See <bsd.links.mk>
1520
1521MAN		Manual pages (should end in .1 - .9).  If no MAN variable is
1522		defined, "MAN=${PROG}.1" is assumed.
1523
1524PAXCTL_FLAGS	If defined, run paxctl(1) on the program binary after link
1525		time, with the value of this variable as args to paxctl(1).
1526
1527PAXCTL_FLAGS.${PROG} Custom override for PAXCTL_FLAGS.
1528
1529PROG		The name of the program to build.  If not supplied, nothing
1530		is built.
1531
1532PROG_CXX	If defined, the name of the program to build.  Also
1533		causes <bsd.prog.mk> to link the program with the C++
1534		compiler rather than the C compiler.  PROG_CXX overrides
1535		the value of PROG if PROG is also set.
1536
1537PROGNAME	The name that the above program will be installed as, if
1538		different from ${PROG}.
1539
1540SRCS		List of source files to build the program.  If SRCS is not
1541		defined, it's assumed to be ${PROG}.c.
1542
1543DPSRCS		List of source files which are needed for generating
1544		dependencies, but are not needed in ${SRCS}.
1545
1546DPADD		Additional dependencies for the program.  Usually used for
1547		libraries.  For example, to depend on the compatibility and
1548		utility libraries use:
1549
1550			DPADD+=${LIBCOMPAT} ${LIBUTIL}
1551
1552		The following system libraries are predefined for DPADD:
1553
1554		LIBARCHIVE?=	${DESTDIR}/usr/lib/libarchive.a
1555		LIBASN1?=	${DESTDIR}/usr/lib/libasn1.a
1556		LIBATF_C?=	${DESTDIR}/usr/lib/libatf-c.a
1557		LIBATF_CXX?=	${DESTDIR}/usr/lib/libatf-c++.a
1558		LIBBIND9?=	${DESTDIR}/usr/lib/libbind9.a
1559		LIBBLUETOOTH?=	${DESTDIR}/usr/lib/libbluetooth.a
1560		LIBBSDMALLOC?=	${DESTDIR}/usr/lib/libbsdmalloc.a
1561		LIBBZ2?=	${DESTDIR}/usr/lib/libbz2.a
1562		LIBC?=		${DESTDIR}/usr/lib/libc.a
1563		LIBCOMPAT?=	${DESTDIR}/usr/lib/libcompat.a
1564		LIBCOM_ERR?=	${DESTDIR}/usr/lib/libcom_err.a
1565		LIBCRT0?=	${DESTDIR}/usr/lib/crt0.o
1566		LIBCRTI?=	${DESTDIR}/usr/lib/crti.o
1567		LIBCRYPT?=	${DESTDIR}/usr/lib/libcrypt.a
1568		LIBCRYPTO?=	${DESTDIR}/usr/lib/libcrypto.a
1569		LIBCURSES?=	${DESTDIR}/usr/lib/libcurses.a
1570		LIBC_PIC?=	${DESTDIR}/usr/lib/libc_pic.a
1571		LIBDBM?=	${DESTDIR}/usr/lib/libdbm.a
1572		LIBDES?=	${DESTDIR}/usr/lib/libdes.a
1573		LIBDNS?=	${DESTDIR}/usr/lib/libdns.a
1574		LIBEDIT?=	${DESTDIR}/usr/lib/libedit.a
1575		LIBEVENT?=	${DESTDIR}/usr/lib/libevent.a
1576		LIBEVENT_OPENSSL?=	${DESTDIR}/usr/lib/libevent_openssl.a
1577		LIBEVENT_PTHREADS?=	${DESTDIR}/usr/lib/libevent_pthreads.a
1578		LIBEXECINFO?=	${DESTDIR}/usr/lib/libexecinfo.a
1579		LIBEXPAT?=	${DESTDIR}/usr/lib/libexpat.a
1580		LIBFETCH?=	${DESTDIR}/usr/lib/libfetch.a
1581		LIBFORM?=	${DESTDIR}/usr/lib/libform.a
1582		LIBFL?=		${DESTDIR}/usr/lib/libfl.a
1583		LIBG2C?=	${DESTDIR}/usr/lib/libg2c.a
1584		LIBGCC?=	${DESTDIR}/usr/lib/libgcc.a
1585		LIBGNUMALLOC?=	${DESTDIR}/usr/lib/libgnumalloc.a
1586		LIBGSSAPI?=	${DESTDIR}/usr/lib/libgssapi.a
1587		LIBHDB?=	${DESTDIR}/usr/lib/libhdb.a
1588		LIBHEIMBASE?=	${DESTDIR}/usr/lib/libheimbase.a
1589		LIBHEIMNTLM?=	${DESTDIR}/usr/lib/libheimntlm.a
1590		LIBHX500?=	${DESTDIR}/usr/lib/libhx500.a
1591		LIBINTL?=	${DESTDIR}/usr/lib/libintl.a
1592		LIBIPSEC?=	${DESTDIR}/usr/lib/libipsec.a
1593		LIBISC?=	${DESTDIR}/usr/lib/libisc.a
1594		LIBISCCC?=	${DESTDIR}/usr/lib/libisccc.a
1595		LIBISCFG?=	${DESTDIR}/usr/lib/libiscfg.a
1596		LIBKADM5CLNT?=	${DESTDIR}/usr/lib/libkadm5clnt.a
1597		LIBKADM5SRV?=	${DESTDIR}/usr/lib/libkadm5srv.a
1598		LIBKAFS?=	${DESTDIR}/usr/lib/libkafs.a
1599		LIBKRB5?=	${DESTDIR}/usr/lib/libkrb5.a
1600		LIBKVM?=	${DESTDIR}/usr/lib/libkvm.a
1601		LIBL?=		${DESTDIR}/usr/lib/libl.a
1602		LIBLBER?=	${DESTDIR}/usr/lib/liblber.a
1603		LIBLDAP?=	${DESTDIR}/usr/lib/libldap.a
1604		LIBLDAP_R?=	${DESTDIR}/usr/lib/libldap_r.a
1605		LIBLUA?=	${DESTDIR}/usr/lib/liblua.a
1606		LIBLUTOK?=	${DESTDIR}/usr/lib/liblutok.a
1607		LIBLWRES?=	${DESTDIR}/usr/lib/liblwres.a
1608		LIBM?=		${DESTDIR}/usr/lib/libm.a
1609		LIBMAGIC?=	${DESTDIR}/usr/lib/libmagic.a
1610		LIBMENU?=	${DESTDIR}/usr/lib/libmenu.a
1611		LIBOBJC?=	${DESTDIR}/usr/lib/libobjc.a
1612		LIBOSSAUDIO?=	${DESTDIR}/usr/lib/libossaudio.a
1613		LIBPAM?=	${DESTDIR}/usr/lib/libpam.a
1614		LIBPANEL?=	${DESTDIR}/usr/lib/libpanel.a
1615		LIBPCAP?=	${DESTDIR}/usr/lib/libpcap.a
1616		LIBPCI?=	${DESTDIR}/usr/lib/libpci.a
1617		LIBPMC?=	${DESTDIR}/usr/lib/libpmc.a
1618		LIBPOSIX?=	${DESTDIR}/usr/lib/libposix.a
1619		LIBPTHREAD?=	${DESTDIR}/usr/lib/libpthread.a
1620		LIBPUFFS?=	${DESTDIR}/usr/lib/libpuffs.a
1621		LIBQUOTA?=	${DESTDIR}/usr/lib/libquota.a
1622		LIBRADIUS?=	${DESTDIR}/usr/lib/libradius.a
1623		LIBREFUSE?=	${DESTDIR}/usr/lib/librefuse.a
1624		LIBRESOLV?=	${DESTDIR}/usr/lib/libresolv.a
1625		LIBRMT?=	${DESTDIR}/usr/lib/librmt.a
1626		LIBROKEN?=	${DESTDIR}/usr/lib/libroken.a
1627		LIBRPCSVC?=	${DESTDIR}/usr/lib/librpcsvc.a
1628		LIBRT?=		${DESTDIR}/usr/lib/librt.a
1629		LIBRUMP?=	${DESTDIR}/usr/lib/librump.a
1630		LIBRUMPFS_CD9660FS?=${DESTDIR}/usr/lib/librumpfs_cd9660fs.a
1631		LIBRUMPFS_EFS?=	${DESTDIR}/usr/lib/librumpfs_efs.a
1632		LIBRUMPFS_EXT2FS?=${DESTDIR}/usr/lib/librumpfs_ext2fs.a
1633		LIBRUMPFS_FFS?=	${DESTDIR}/usr/lib/librumpfs_ffs.a
1634		LIBRUMPFS_HFS?=	${DESTDIR}/usr/lib/librumpfs_hfs.a
1635		LIBRUMPFS_LFS?=	${DESTDIR}/usr/lib/librumpfs_lfs.a
1636		LIBRUMPFS_MSDOSFS?=${DESTDIR}/usr/lib/librumpfs_msdosfs.a
1637		LIBRUMPFS_NFS?=	${DESTDIR}/usr/lib/librumpfs_nfs.a
1638		LIBRUMPFS_NTFS?=${DESTDIR}/usr/lib/librumpfs_ntfs.a
1639		LIBRUMPFS_SYSPUFFS?=${DESTDIR}/usr/lib/librumpfs_syspuffs.a
1640		LIBRUMPFS_TMPFS?=${DESTDIR}/usr/lib/librumpfs_tmpfs.a
1641		LIBRUMPFS_UDF?=	${DESTDIR}/usr/lib/librumpfs_udf.a
1642		LIBRUMPFS_UFS?=	${DESTDIR}/usr/lib/librumpfs_ufs.a
1643		LIBRUMPUSER?=	${DESTDIR}/usr/lib/librumpuser.a
1644		LIBSASLC?=	${DESTDIR}/usr/lib/libsaslc.a
1645		LIBSKEY?=	${DESTDIR}/usr/lib/libskey.a
1646		LIBSL?=		${DESTDIR}/usr/lib/libsl.a
1647		LIBSQLITE3?=	${DESTDIR}/usr/lib/libsqlite3.a
1648		LIBSS?=		${DESTDIR}/usr/lib/libss.a
1649		LIBSSH?=	${DESTDIR}/usr/lib/libssh.a
1650		LIBSSL?=	${DESTDIR}/usr/lib/libssl.a
1651		LIBSSP?=	${DESTDIR}/usr/lib/libssp.a
1652		LIBSTDCXX?=	${DESTDIR}/usr/lib/libstdc++.a
1653		LIBSUPCXX?=	${DESTDIR}/usr/lib/libsupc++.a
1654		LIBTERMINFO?=	${DESTDIR}/usr/lib/libterminfo.a
1655		LIBTRE?=	${DESTDIR}/usr/lib/libtre.a
1656		LIBUNBOUND?=	${DESTDIR}/usr/lib/libunbound.a
1657		LIBUSBHID?=	${DESTDIR}/usr/lib/libusbhid.a
1658		LIBUTIL?=	${DESTDIR}/usr/lib/libutil.a
1659		LIBWIND?=	${DESTDIR}/usr/lib/libwind.a
1660		LIBWRAP?=	${DESTDIR}/usr/lib/libwrap.a
1661		LIBY?=		${DESTDIR}/usr/lib/liby.a
1662		LIBZ?=		${DESTDIR}/usr/lib/libz.a
1663
1664		The following X-Windows libraries are predefined for DPADD:
1665
1666		LIBFS?=		${DESTDIR}/usr/X11R7/lib/libFS.a
1667		LIBGL?=		${DESTDIR}/usr/X11R7/lib/libGL.a
1668		LIBGLU?=	${DESTDIR}/usr/X11R7/lib/libGLU.a
1669		LIBICE?=	${DESTDIR}/usr/X11R7/lib/libICE.a
1670		LIBSM?=		${DESTDIR}/usr/X11R7/lib/libSM.a
1671		LIBX11?=	${DESTDIR}/usr/X11R7/lib/libX11.a
1672		LIBX11_XCB?=	${DESTDIR}/usr/X11R7/lib/libX11-xcb.a
1673		LIBXTRAP?=	${DESTDIR}/usr/X11R7/lib/libXTrap.a
1674		LIBXAU?=	${DESTDIR}/usr/X11R7/lib/libXau.a
1675		LIBXAW?=	${DESTDIR}/usr/X11R7/lib/libXaw.a
1676		LIBXCB?=	${DESTDIR}/usr/X11R7/lib/libxcb.a
1677		LIBXDMCP?=	${DESTDIR}/usr/X11R7/lib/libXdmcp.a
1678		LIBXEXT?=	${DESTDIR}/usr/X11R7/lib/libXext.a
1679		LIBXFONT?=	${DESTDIR}/usr/X11R7/lib/libXfont.a
1680		LIBXFT?=	${DESTDIR}/usr/X11R7/lib/libXft.a
1681		LIBXI?=		${DESTDIR}/usr/X11R7/lib/libXi.a
1682		LIBXINERAMA?=	${DESTDIR}/usr/X11R7/lib/libXinerama.a
1683		LIBXMU?=	${DESTDIR}/usr/X11R7/lib/libXmu.a
1684		LIBXMUU?=	${DESTDIR}/usr/X11R7/lib/libXmuu.a
1685		LIBXPM?=	${DESTDIR}/usr/X11R7/lib/libXpm.a
1686		LIBXRANDR?=	${DESTDIR}/usr/X11R7/lib/libXrandr.a
1687		LIBXRENDER?=	${DESTDIR}/usr/X11R7/lib/libXrender.a
1688		LIBXSS?=	${DESTDIR}/usr/X11R7/lib/libXss.a
1689		LIBXT?=		${DESTDIR}/usr/X11R7/lib/libXt.a
1690		LIBXTST?=	${DESTDIR}/usr/X11R7/lib/libXtst.a
1691		LIBXV?=		${DESTDIR}/usr/X11R7/lib/libXv.a
1692		LIBXXF86DGA?=	${DESTDIR}/usr/X11R7/lib/libXxf86dga.a
1693		LIBXXF86MISC?=	${DESTDIR}/usr/X11R7/lib/libXxf86misc.a
1694		LIBXXF86VM?=	${DESTDIR}/usr/X11R7/lib/libXxf86vm.a
1695		LIBDPS?=	${DESTDIR}/usr/X11R7/lib/libdps.a
1696		LIBFNTSTUBS?=	${DESTDIR}/usr/X11R7/lib/libfntstubs.a
1697		LIBFONTCACHE?=	${DESTDIR}/usr/X11R7/lib/libfontcache.a
1698		LIBFONTCONFIG?=	${DESTDIR}/usr/X11R7/lib/libfontconfig.a
1699		LIBFONTENC?=	${DESTDIR}/usr/X11R7/lib/libfontenc.a
1700		LIBFREETYPE?=	${DESTDIR}/usr/X11R7/lib/libfreetype.a
1701		LIBLBXUTIL?=	${DESTDIR}/usr/X11R7/lib/liblbxutil.a
1702		LIBXKBFILE?=	${DESTDIR}/usr/X11R7/lib/libxkbfile.a
1703
1704SHAREDSTRINGS	If defined, a new .c.o rule is used that results in shared
1705		strings, using xstr(1). Note that this will not work with
1706		parallel makes.
1707
1708STRIPFLAG	The flag passed to the install program to cause the binary
1709		to be stripped.
1710
1711SUBDIR		A list of subdirectories that should be built as well.
1712		Each of the targets will execute the same target in the
1713		subdirectories.
1714
1715SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
1716		These are installed exactly like programs.
1717
1718SCRIPTSDIR	The location to install the scripts.  Each script can be
1719		installed to a separate path by setting SCRIPTSDIR_<script>.
1720
1721SCRIPTSNAME	The name that the above program will be installed as, if
1722		different from ${SCRIPTS}. These can be further specialized
1723		by setting SCRIPTSNAME_<script>.
1724
1725FILES		See description of <bsd.files.mk>.
1726
1727SHLINKDIR	Target directory for shared linker.  See description of
1728		<bsd.own.mk> for additional information about this variable.
1729
1730The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
1731if it exists, as well as the include file <bsd.man.mk>.
1732
1733Some simple examples:
1734
1735To build foo from foo.c with a manual page foo.1, use:
1736
1737	PROG=	foo
1738
1739	.include <bsd.prog.mk>
1740
1741To build foo from foo.c with a manual page foo.2, add the line:
1742
1743	MAN=	foo.2
1744
1745If foo does not have a manual page at all, add the line:
1746
1747	MKMAN=	no
1748
1749If foo has multiple source files, add the line:
1750
1751	SRCS=	a.c b.c c.c d.c
1752
1753
1754=-=-=-=-=   bsd.rpc.mk   =-=-=-=-=
1755
1756The include file <bsd.rpc.mk> contains a makefile fragment used to
1757construct source files built by rpcgen.
1758
1759The following macros may be defined in makefiles which include
1760<bsd.rpc.mk> in order to control which files get built and how they
1761are to be built:
1762
1763RPC_INCS:	construct .h file from .x file
1764RPC_XDRFILES:	construct _xdr.c from .x file
1765		(for marshalling/unmarshalling data types)
1766RPC_SVCFILES:	construct _svc.c from .x file
1767		(server-side stubs)
1768RPC_SVCFLAGS:	Additional flags passed to builds of RPC_SVCFILES.
1769
1770RPC_XDIR:	Directory containing .x/.h files
1771
1772
1773=-=-=-=-=   bsd.shlib.mk   =-=-=-=-=
1774
1775The include file <bsd.shlib.mk> computes parameters for shared library
1776installation and use.  It defines no targets.  <bsd.own.mk> MUST be
1777included before <bsd.shlib.mk>.
1778
1779<bsd.own.mk> sets the following variables, if they are not already defined
1780(defaults are in brackets):
1781
1782SHLIBINSTALLDIR	If ${USE_SHLIBDIR} is not "no", use ${SHLIBINSTALLDIR}
1783		instead of ${LIBDIR} as the base path for shared library
1784		installation.  [/lib]
1785
1786SHLIBDIR	The path to USE_SHLIBDIR shared libraries to use when building
1787		a program.  [/lib for programs in /bin and /sbin, /usr/lib
1788		for all others.]
1789
1790_LIBSODIR	Set to ${SHLIBINSTALLDIR} if ${USE_SHLIBDIR} is not "no",
1791		otherwise set to ${LIBDIR}
1792
1793SHLINKINSTALLDIR Base path for shared linker.  [/libexec]
1794
1795SHLINKDIR	Path to use for shared linker when building a program.
1796		[/libexec for programs in /bin and /sbin, /usr/libexec for
1797		all others.]
1798
1799
1800=-=-=-=-=   bsd.subdir.mk   =-=-=-=-=
1801
1802The include file <bsd.subdir.mk> contains the default targets for building
1803subdirectories.  It has the same eight targets as <bsd.prog.mk>: all,
1804clean, cleandir, depend, includes, install, lint, and tags.  It uses the
1805following variables:
1806
1807NOSUBDIR	If this variable is defined, then the SUBDIR variable
1808		will be ignored and subdirectories will not be processed.
1809
1810SUBDIR		For all of the directories listed in ${SUBDIR}, the
1811		specified directory will be visited and the target made.
1812
1813		As a special case, the use of a token .WAIT as an
1814		entry in SUBDIR acts as a synchronization barrier
1815		when multiple make jobs are run; subdirs before the
1816		.WAIT must complete before any subdirs after .WAIT are
1817		started.  See make(1) for some caveats on use of .WAIT
1818		and other special sources.
1819
1820
1821=-=-=-=-=   bsd.x11.mk   =-=-=-=-=
1822
1823The include file <bsd.x11.mk> contains parameters and targets for
1824cross-building X11 from ${X11SRCDIR.<package>}.  It should be included
1825after the general Makefile contents but before the include files such as
1826<bsd.prog.mk> and <bsd.lib.mk>.
1827
1828It provides the following targets:
1829	.man.1 .man.3 .man.4 .man.5 .man.7:
1830		If ${MAN} or ${PROG} is set and ${MKMAN} != "no",
1831		these rules convert from X11's manual page source
1832		into an mdoc.old source file.
1833
1834It sets the following variables:
1835
1836BINDIR			Set to ${X11BINDIR}.
1837			To override, define after including <bsd.x11.mk>
1838
1839LIBDIR			Set to ${X11USRLIBDIR}.
1840			To override, define after including <bsd.x11.mk>
1841
1842MANDIR			Set to ${X11MANDIR}.
1843			To override, define after including <bsd.x11.mk>
1844
1845CPPFLAGS		Appended with definitions to include from
1846			${DESTDIR}${X11INCDIR}
1847
1848LDFLAGS			Appended with definitions to link from
1849			${DESTDIR}${X11USRLIBDIR}
1850
1851X11FLAGS.CONNECTION	Equivalent to X11's CONNECTION_FLAGS.
1852
1853X11FLAGS.EXTENSION	Equivalent to X11's EXT_DEFINES.
1854
1855X11FLAGS.LOADABLE	Equivalent to X11's LOADABLE.
1856
1857X11FLAGS.OS_DEFINES	Equivalent to X11's OS_DEFINES.
1858
1859X11FLAGS.SERVER		Equivalent to X11's ServerDefines.
1860
1861X11FLAGS.THREADLIB	Equivalent to X11's THREADS_DEFINES for libraries.
1862
1863X11FLAGS.THREADS	Equivalent to X11's THREADS_DEFINES.
1864
1865X11FLAGS.VERSION	cpp(1) definitions of OSMAJORVERSION and OSMINORVERSION.
1866
1867X11FLAGS.DIX		Equivalent to X11's DIX_DEFINES.
1868
1869X11TOOL_UNXCOMM		Commandline to convert `XCOMM' comments to `#'
1870
1871It uses the following variables:
1872
1873APPDEFS			List of app-default files to install.
1874
1875CPPSCRIPTS		List of files/scripts to run through cpp(1)
1876			and then ${X11TOOL_UNXCOMM}.  The source files
1877			have a `.cpp' suffix, the generated files do not.
1878
1879CPPSCRIPTFLAGS		Additional flags to cpp(1) when building CPPSCRIPTS.
1880
1881CPPSCRIPTFLAGS_<fn>	Additional flags to cpp(1) when building CPPSCRIPT <fn>.
1882
1883
1884=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1885
1886The following files are described here for completion, but they are not
1887supposed to be included directly from other Makefiles; they are used
1888internally by other system files.
1889
1890=-=-=-=-=   bsd.sys.mk   =-=-=-=-=
1891
1892The include file <bsd.sys.mk> is used by other system mk files and
1893it is not intended to be included standalone. It contains rules and
1894system build variables. It requires bsd.own.mk to be included first.
1895It contains overrides that are used when building the NetBSD source tree.
1896
1897The following variables control how various files are compiled/built.
1898(Note that these may be overridden in <bsd.own.mk> if USETOOLS == "yes"):
1899
1900AR		Create, modify, and extract from archives.  [ar]
1901
1902ARFLAGS		Options to ${AR}.  [rl]
1903
1904AS		Assembler.  [as]
1905
1906AFLAGS		Options to ${CC} when compiling or linking .s or .S
1907		assembly source files.  []
1908
1909BUILDSEED	GCC uses random numbers when compiling C++ code.
1910		If this option is present, seed the random number
1911		generator based on the value, source file names and
1912		the output file name to make builds more deterministic.
1913		Additional information is available in the GCC
1914		documentation of -frandom-seed.
1915
1916CC		C compiler.  [cc]
1917
1918CFLAGS		Options to ${CC}.  [Usually -O or -O2]
1919
1920CPP		C Pre-Processor.  [cpp]
1921
1922CPPFLAGS	Options to ${CPP}.  []
1923
1924CPUFLAGS	Optimization flags for ${CC}.  []
1925
1926CXX		C++ compiler.  [c++]
1927
1928CXXFLAGS	Options to ${CXX}.  [${CFLAGS}]
1929
1930ELF2ECOFF	Convert ELF-format executable to ECOFF.  [elf2ecoff]
1931
1932FC		Fortran compiler.  [f77]
1933
1934FFLAGS		Options to {$FC}.  [-O]
1935
1936HOST_SH		Shell.	This must be an absolute path, because it may be
1937		substituted into "#!" lines in scripts.	 [/bin/sh]
1938
1939INSTALL		install(1) command.  [install]
1940
1941LEX		Lexical analyzer.  [lex]
1942
1943LFLAGS		Options to ${LEX}.  []
1944
1945LPREFIX		Symbol prefix for ${LEX} (see -P option in lex(1)) [yy]
1946
1947LD		Linker.  [ld]
1948
1949LDFLAGS		Options to ${CC} during the link process.  []
1950
1951LINT		C program verifier.  [lint]
1952
1953LINTFLAGS	Options to ${LINT}.  [-chapbxzgFS]
1954
1955LORDER		List dependencies for object files.  [lorder]
1956
1957MAKE		make(1).  [make]
1958
1959MKDEP		Construct Makefile dependency list.  [mkdep]
1960
1961MKDEPCXX	Construct Makefile dependency list for C++ files.  [mkdep]
1962
1963NM		List symbols from object files.  [nm]
1964
1965PC		Pascal compiler.  [pc]  (Not present)
1966
1967PFLAGS		Options to ${PC}.  []
1968
1969OBJC		Objective C compiler.  [${CC}]
1970
1971OBJCFLAGS	Options to ${OBJC}.  [${CFLAGS}]
1972
1973OBJCOPY		Copy and translate object files.  [objcopy]
1974
1975OBJCOPYLIBFLAGS	Flags to pass to objcopy when library objects are
1976		being built. [${.TARGET} =~ "*.po" ? -X : -x]
1977
1978OBJDUMP		Display information from object files.  [objdump]
1979
1980RANLIB		Generate index to archive.  [ranlib]
1981
1982READELF		Display information from ELF object files.  [readelf]
1983
1984SIZE		List section sizes and total size.  [size]
1985
1986STRINGS		Display printable character sequences in files.  [strings]
1987
1988STRIP		Discard symbols from object files.  [strip]
1989
1990TSORT		Topological sort of a directed graph.  [tsort -q]
1991
1992YACC		LALR(1) parser generator.  [yacc]
1993
1994YFLAGS		Options to ${YACC}.  []
1995
1996YHEADER		If defined, add "-d" to YFLAGS, and add dependencies
1997		from <file>.y to <file>.h and <file>.c, and add
1998		<foo>.h to CLEANFILES.
1999
2000YPREFIX		If defined, add "-p ${YPREFIX}" to YFLAGS.
2001
2002
2003Other variables of note (incomplete list):
2004
2005NOGCCERROR	If defined, prevents passing certain ${CFLAGS} to GCC
2006		that cause warnings to be fatal, such as:
2007			-Werror -Wa,--fatal-warnings
2008		(The latter being for as(1).)
2009
2010NOCLANGERROR	If defined and clang is used as C compiler, -Werror is not
2011		passed to it.
2012
2013WARNS		Crank up compiler warning options; the distinct levels are:
2014			WARNS=1
2015			WARNS=2
2016			WARNS=3
2017			WARNS=4
2018			WARNS=5
2019			WARNS=6
2020
2021=-=-=-=-=   bsd.host.mk  =-=-=-=-=
2022
2023This file is automatically included from bsd.own.mk. It contains settings
2024for all the HOST_* variables that are used in host programs and libraries.
2025
2026HOST_AR			The host archive processing command
2027
2028HOST_CC			The host c compiler
2029
2030HOST_CFLAGS		The host c compiler flags
2031
2032HOST_COMPILE.c		The host c compiler line with flags
2033
2034HOST_COMPILE.cc		The host c++ compiler line with flags
2035
2036HOST_CPP		The host c pre-processor
2037
2038HOST_CPPFLAGS		The cost c pre-processor flags
2039
2040HOST_CXX		The host c++ compiler
2041
2042HOST_CXXFLAGS		The host c++ compiler flags
2043
2044HOST_INSTALL_DIR	The host command to install a directory
2045
2046HOST_INSTALL_FILE	The host command to install a file
2047
2048HOST_INSTALL_SYMLINK	The host command to install a symlink
2049
2050HOST_LD			The host linker command
2051
2052HOST_LDFLAGS		The host linker flags
2053
2054HOST_LINK.c		The host c linker line with flags
2055
2056HOST_LINK.cc		The host c++ linker line with flags
2057
2058HOST_LN			The host command to link two files
2059
2060HOST_MKDEP		The host command to create dependencies for c programs
2061
2062HOST_MKDEPCXX		The host command to create dependencies for c++ programs
2063
2064HOST_OSTYPE		The host OSNAME-RELEASE-ARCH tupple
2065
2066HOST_RANLIB		The host command to create random access archives
2067
2068HOST_SH			The host Bourne shell interpreter name (absolute path)
2069
2070=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
2071