xref: /minix/share/mk/bsd.README (revision 84d9c625)
1#	$NetBSD: bsd.README,v 1.322 2013/11/11 10:24:53 joerg Exp $
2#	@(#)bsd.README	8.2 (Berkeley) 4/2/94
3
4This is the README file for the make "include" files for the NetBSD
5source tree.  The files are installed in /usr/share/mk, and are,
6by convention, named with the suffix ".mk".
7
8Note, this file is not intended to replace reading through the .mk
9files for anything tricky.
10
11=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
12
13RANDOM THINGS WORTH KNOWING:
14
15The files are simply C-style #include files, and pretty much behave like
16you'd expect.  The syntax is slightly different in that a single '.' is
17used instead of the hash mark, i.e. ".include <bsd.prog.mk>".
18
19One difference that will save you lots of debugging time is that inclusion
20of the file is normally done at the *end* of the Makefile.  The reason for
21this is because .mk files often modify variables and behavior based on the
22values of variables set in the Makefile.  To make this work, remember that
23the FIRST target found is the target that is used, i.e. if the Makefile has:
24
25	a:
26		echo a
27	a:
28		echo a number two
29
30the command "make a" will echo "a".  To make things confusing, the SECOND
31variable assignment is the overriding one, i.e. if the Makefile has:
32
33	a=	foo
34	a=	bar
35
36	b:
37		echo ${a}
38
39the command "make b" will echo "bar".  This is for compatibility with the
40way the V7 make behaved.
41
42It's fairly difficult to make the BSD .mk files work when you're building
43multiple programs in a single directory.  It's a lot easier to split up the
44programs than to deal with the problem.  Most of the agony comes from making
45the "obj" directory stuff work right, not because we switched to a new version
46of make.  So, don't get mad at us, figure out a better way to handle multiple
47architectures so we can quit using the symbolic link stuff.  (Imake doesn't
48count.)
49
50The file .depend in the source directory is expected to contain dependencies
51for the source files.  This file is read automatically by make after reading
52the Makefile.
53
54The variable DESTDIR works as before.  It's not set anywhere but will change
55the tree where the file gets installed.
56
57The profiled libraries are no longer built in a different directory than
58the regular libraries.  A new suffix, ".po", is used to denote a profiled
59object, and ".pico" denotes a shared (position-independent) object.
60
61There are various make variables used during the build.
62
63Many variables support a (case sensitive) value of "no" or "yes",
64and are tested with  ${VAR} == "no"  and  ${VAR} != "no" .
65
66
67The basic rule for the variable naming scheme is as follows:
68
69HOST_xxx	A command that runs on the host machine regardless of
70		whether or not the system is being cross compiled, or
71		flags for such a command.
72
73MKxxx		Can be set to "no" to disable functionality, or
74		"yes" to enable it.
75		Usually defaults to "yes", although some variables
76		default to "no".
77		Due to make(1) implementation issues, if a temporary
78		command-line override of a mk.conf(5) or <bsd.own.mk>
79		setting is required whilst still honoring a particular
80		Makefile's setting of MKxxx, use
81			env MKxxx=value make
82		instead of
83			make MKxxx=value
84
85NOxxx		If defined, disables a feature.
86		Not intended for users.
87		This is to allow Makefiles to disable functionality
88		that they don't support (such as missing man pages).
89		NOxxx variables must be defined before <bsd.own.mk>
90		is included.
91
92TOOL_xxx	A tool that is provided as part of the USETOOLS
93		framework.  When not using the USETOOLS framework,
94		TOOL_xxx variables should refer to tools that are
95		already installed on the host system.
96
97The following variables that control how things are made/installed that
98are not set by default. These should not be set by Makefiles; they're for
99the user to define in MAKECONF (see <bsd.own.mk>, below, or mk.conf(5))
100or on the make(1) command line:
101
102BUILD 		If defined, 'make install' checks that the targets in the
103		source directories are up-to-date and remakes them if they
104                are out of date, instead of blindly trying to install
105                out of date or non-existent targets.
106
107MAKEVERBOSE	Control how "verbose" the standard make(1) rules are.
108		Default: 2
109		Supported values:
110		    0	Minimal output ("quiet")
111		    1	Describe what is occurring
112		    2	Describe what is occurring and echo the actual command
113		    3	Ignore the effect of the "@" prefix in make commands
114		    4	Trace shell commands using the shell's -x flag
115
116MKATF		If "no", don't build the Automated Testing Framework (ATF),
117		which includes the libatf-c, libatf-c++ and libatf-sh libraries
118		and the various command line tools.  Also, because the build of
119		the libraries is disabled, don't build the NetBSD test suite
120		either.
121		Default: yes
122
123MKBFD		Obsolete, use MKBINUTILS
124
125MKBINUTILS	If "no", don't build binutils (gas, ld, etc and libbfd,
126		libopcodes)
127		Default: yes
128
129MKBSDTAR	If "yes", use the libarchive based cpio and tar instead of
130		the pax frontends.
131		Default: no
132
133MKCATPAGES	If "no", don't build or install the catman pages.
134		Default: no
135
136MKCOMPAT  	If "no", don't build or install the src/compat.
137		Default: yes on amd64/mips64/sparc64, no elsewhere.
138
139MKCOMPLEX	If "no", don't build libm support for <complex.h>
140		Default: yes
141
142MKCRYPTO	If "no", no cryptography support will be built into the system,
143		and also acts as "MKKERBEROS=no".
144		Default: yes
145
146MKCRYPTO_RC5	If not "no", RC5 support will be built into libcrypto_rc5
147		Default: no
148
149MKCVS		If "no", don't build or install cvs(1).
150		Default: yes
151
152MKDEBUG		If "no", don't build and install separate debugging symbols
153		into /usr/libdata/debug.
154		Default: no
155
156MKDEBUGLIB	Build *_g.a debugging libraries, which are compiled
157		with -DDEBUG.
158		Default: no
159
160MKDEPINCLUDES	If "yes" issue .include statements in the .depend file
161		instead of inlining the contents of the .d files. Useful
162		when stale dependencies are present, to list the exact
163		files that need refreshing. It is off by default because
164		it is possibly slower.
165		Default "no"
166
167MKDOC		If "no", don't build or install the documentation.
168		Default: yes
169
170MKDTRACE	If "no", do not build and install the kernel modules,
171		utilities and libraries used to implement the dtrace(1)
172		facility.
173		Default: no
174
175MKDYNAMICROOT	If "no", build programs in /bin and /sbin statically,
176		don't install certain libraries in /lib, and don't
177		install the shared linker into /libexec.
178		Default: yes
179
180MKEXTSRC        If not "no", 'make build' also descends into either src/extsrc
181		to cross-build programs and libraries externally added by
182		users, and automatically enables creation of those sets.
183		Default: no
184
185MKGCC		If "no", don't build gcc(1) or any of the GCC-related
186		libraries (libgcc, libobjc, libstdc++).
187		Default: yes
188
189MKGCCCMDS	If "no", don't build gcc(1), but do build the GCC-related
190		libraries (libgcc, libobjc, libstdc++).
191		Default: yes
192
193MKGDB		If "no", don't build gdb(1).
194		Default: yes
195
196MKHESIOD	If "no", disables building of Hesiod infrastructure
197		(libraries and support programs).
198		Default: yes
199
200MKHOSTOBJ	If not "no", for programs intended to be run on the compile
201		host, the name, release, and architecture of the host
202		operating system will be suffixed to the name of the object
203		directory created by "make obj".
204		Default: no
205
206MKHTML		If "no", don't build or install the HTML man pages.
207		Default: yes
208
209MKIEEEFP	If "no", don't add code for IEEE754/IEC60559 conformance.
210		Has no effect on most platforms.
211		Default: yes
212
213MKSTRIPIDENT	Strip the RCS IDs from program binaries and shared libraries.
214		Default: no
215
216MKINET6		If "no", disables building of INET6 (IPv6) infrastructure
217		(libraries and support programs).  This option must not be
218		set to "no" if MKX11 is not "no".
219		Default: yes
220
221MKINFO		If "no", don't build or install Info documentation from
222		Texinfo source files.
223		Default: yes
224
225MKIPFILTER	If "no", don't build or install the IP Filter programs and LKM.
226		Default: yes
227
228MKISCSI		If "no", don't build or install iSCSI library or applications
229		(depends on libpthread.)
230		Default: yes
231
232MKKERBEROS	If "no", disables building of Kerberos v5
233		infrastructure (libraries and support programs).
234		Default: yes
235
236MKKMOD		If "no", disables building of kernel modules.
237		Default: yes
238
239MKKYUA		If "no", don't build Kyua nor its dependent library Lutok.
240		Note that setting this to "no" does not disable the build of
241		the NetBSD test suite itself; the build of the tests is
242		controlled by the MKATF knob.
243		Default: no (until the import is done and validated)
244
245MKLDAP		If "no", disables building of LDAP infrastructure
246		(libraries and support programs).
247		Default: yes
248
249MKLIBCXX	If not "no", build and install libc++.
250		Default: no
251
252MKLIBSTDCXX	If not "no", build and install libstdc++.
253		Default: yes
254
255MKLINKLIB	If "no", act as "MKLINT=no MKPICINSTALL=no MKPROFILE=no".
256		Also:
257			- don't install the .a libraries
258			- don't install _pic.a libraries on PIC systems
259			- don't build .a libraries on PIC systems
260			- don't install the .so symlink on ELF systems
261		I.e, only install the shared library (and the .so.major
262		symlink on ELF).
263		Default: yes
264
265MKLINT		If "no", don't build or install the lint libraries.
266		Default: yes
267
268MKLVM		If "no", don't build or install the logical volume manager
269		and device mapper tools and libraries
270		Default: yes
271
272MKMAN		If "no", don't build or install the man or catman pages,
273		and also acts as "MKCATPAGES=no MKHTML=no".
274		Default: yes
275
276MKMANDOC	If "yes", mandoc is built as tool and used to compile
277		catman or html pages.  A directory can be exempted by
278		defining NOMANDOC.  Individual man pages are exempted
279		if NOMANDOC.${target} is set to "yes".
280		Default: yes
281
282MKMANZ		If not "no", compress manual pages at installation time.
283		Default: no
284
285MKMDNS		If "no", disables building of mDNS infrastructure
286		(libraries and support programs).
287		Default: yes
288
289MKNLS		If "no", don't build or install the NLS files and locale
290		definition files.
291		Default: yes
292
293MKNPF		If "no", don't build or install the NPF and its modules.
294		Default: yes
295
296MKOBJ		If "no", don't enable the rule which creates objdirs,
297		and also acts as "MKOBJDIRS=no".
298		Default: yes
299
300MKOBJDIRS	If "no", don't create objdirs during a "make build".
301		Default: no
302
303MKPAM		If "no", disables building of PAM authentication
304		infrastructure (libraries and support programs).
305		Default: yes
306
307MKPCC		If "no", don't build pcc(1) or any of the PCC-related
308		libraries (libpcc, libpccsoftfloat).
309		Default: no
310
311MKPF		If "no", don't build or install the pf programs and LKM.
312		Default: yes
313
314MKPIC		If "no", don't build or install shared libraries, and
315		also acts as "MKPICLIB=no"
316		Default: yes (for MACHINE_ARCHs that support it)
317
318MKPICINSTALL	If "no", don't install the *_pic.a libraries.
319		Default: yes
320
321MKPICLIB	If "no", don't build *_pic.a libraries, and build the
322		shared object libraries from the .a libraries.
323		A symlink is installed in ${DESTDIR}/usr/lib for the
324		_pic.a library pointing to the .a library.
325		Default: yes
326
327MKPIE		If "no", create regular executables. Otherwise create
328		PIE (Position Independent Executables).
329		Default: no
330
331MKPIGZGZIP	If "no", only install pigz as pigz, not gzip.
332		Default: no
333
334MKPOSTFIX	If "no", don't build or install postfix(1).
335		Default: yes
336
337MKPROFILE	If "no", don't build or install the profiling (*_p.a) libraries.
338		Default: yes
339
340MKREPRO         If "yes", create reproducable builds. This enables
341		different switches to make two builds from the same source tree
342		result in the same build results.
343		Default: no
344
345MKSHARE		If "no", act as "MKCATPAGES=no MKDOC=no MKHTML=no MKINFO=no
346		MKMAN=no MKNLS=no".
347		I.e, don't build catman pages, documentation, Info
348		documentation, man pages, NLS files, ...
349		Default: yes
350
351MKSKEY		If "no", disables building of S/key authentication
352		infrastructure (libraries and support programs).
353		Default: yes
354
355MKSLJIT		If "no", disables building of sljit (stack-less platform
356		independent JIT compiler) private library and tests.
357		Default: yes on amd64, i386 and sparc, no elsewhere.
358
359MKSOFTFLOAT	If not "no", build with options to enable the compiler to
360		generate output containing library calls for floating
361		point and possibly soft-float library support.
362		Default: no
363
364MKSTATICLIB	If "no", don't build or install the normal static (*.a)
365		libraries.
366		Default: yes
367
368MKTPM		If "no" then don't build the Trusted Platform Module
369		infrastructure.
370		Default: no
371
372MKUNPRIVED	If not "no", don't set the owner/group/mode when installing
373		files or directories, and keep a metadata log of what
374		the owner/group/mode should be.  This allows a
375		non-root "make install".
376		Default: no
377
378MKUPDATE 	If not "no", 'make install' only installs targets that are
379		more recently modified in the source directories that their
380		installed counterparts.
381		Default: no
382
383MKX11		If not "no", depending on the value of ${X11FLAVOUR},
384		'make build' also descends into either src/x11 (XFree86) or
385		src/external/mit/xorg (modular Xorg) to cross-build X11 and
386		automatically enables creation of X sets.
387		Default: no
388
389MKX11FONTS	If not "no", if ${X11FLAVOUR} is "Xorg", do not build or
390		install the X fonts.  The xfont set is still created but
391		will be empty.
392		Default: yes
393
394MKX11MOTIF:	If "yes" and ${X11FLAVOUR} is "Xorg", build the native X11
395		libGLw with Motif stubs.  If Motif is not installed in the
396		default location /usr/pkg, the location can be specified
397		using the X11MOTIFPATH variable.
398		Default: no
399
400MKYP		If "no", disables building of YP (NIS)
401		infrastructure (libraries and support programs).
402		Default: yes
403
404MKZFS		If "no", do not build and install utilities and libraries
405		used to manage ZFS file system. Do not build zfs and solaris
406		compatibility kernel modules.
407		Default: yes on i386/amd64, no elsewhere.
408
409MKRUMP		If "no", do not build and install rump related headers,
410		libraries, and programs.
411		Default: yes
412
413USE_HESIOD	If "no", disables building Hesiod support into
414		various system utilities/libraries that support it.
415		If ${MKHESIOD} is "no", USE_HESIOD will also be
416		forced to "no".
417
418USE_INET6	If "no", disables building INET6 (IPv6) support into
419		various system utilities/libraries that support it.
420		If ${MKINET6} is "no", USE_INET6 will also be
421		forced to "no".
422
423USE_JEMALLOC	If "no", disables building the "jemalloc" allocator
424		designed for improved performance with threaded
425		applications.  The "phkmalloc" allocator as used up
426		before NetBSD-5.0 will be substituted.
427
428USE_KERBEROS	If "no", disables building Kerberos v5
429		support into various system utilities/libraries that
430		support it.  If ${MKKERBEROS} is "no", USE_KERBEROS
431		will also be forced to "no".
432
433USE_LDAP	If "no", disables building LDAP support into various
434		system utilities/libraries that support it.
435		If ${MKLDAP} is "no", USE_LDAP will also be forced to "no".
436
437USE_PAM		If "no", disables building PAM authentication support
438		into various system utilities/libraries that support it.
439		If ${MKPAM} is "no", USE_PAM will also be forced to "no".
440
441USE_SKEY	If "no", disables building S/key authentication
442		support into various system utilities/libraries that
443		support it.  If ${MKSKEY} is "no", USE_SKEY will
444		also be forced to "no".
445		Default: no
446
447USE_SSP		If "no", disables GCC stack protection code, which
448		detects stack overflows and aborts the program. The
449		stack protection code imposes a performance penalty
450		of about 5%.
451		Default: "no", unless "USE_FORT" is set to "yes"
452
453USE_FORT 	If "yes" turns on substitute wrappers for commonly used
454		functions that do not do bounds checking regularly, but
455		they could in some cases by using the gcc
456		__builtin_object_size() function to determine the buffer
457		size where it is known and detect buffer overflows.
458		These substitute functions are in /usr/include/ssp.
459		Default: depends on the part of the source tree
460
461USE_YP		If "no", disables building YP (NIS) support into
462		various system utilities/libraries that support it.
463		If ${MKYP} is "no", USE_YP will also be forced to "no".
464
465USE_PIGZGZIP	If "no", use the host "gzip" program to compress things.
466		Otherwise, build tools/pigz and use nbpigz to compress
467		things.
468		Default: "no".
469
470X11FLAVOUR	Set to "Xorg" or "XFree86", depending on whether to build
471		XFree86 or modular Xorg.  Only matters if MKX11!=no.
472		Default: "Xorg" on amd64, i386, macppc, shark and sparc64,
473		"XFree86" on everything else.
474
475COPTS.lib<lib>
476OBJCOPTS.lib<lib>
477LDADD.lib<lib>
478CPPFLAGS.lib<lib>
479CXXFLAGS.lib<lib>
480COPTS.<prog>
481OBJCCOPTS.<prog>
482LDADD.<prog>
483CPPFLAGS.<prog>
484CXXFLAGS.<prog>	These provide a way to specify additions to the associated
485		variables in a way that applies only to a particular library
486		or program.  <lib> corresponds to the LIB variable set in
487		the library's makefile.  <prog> corresponds to either PROG
488		or PROG_CXX (if set).  For example, if COPTS.libcrypto is
489		set to "-g", "-g" will be added to COPTS only when compiling
490		the crypto library.
491
492The active compiler is selected using the following variables:
493AVAILABLE_COMPILER
494		List of available compiler suites.  Processed in order
495		for selecting the active compiler for each frontend.
496HAVE_PCC	If defined, PCC is present and enabled.
497HAVE_LLVM	If defined, LLVM/Clang is present and enabled.
498UNSUPPORTED_COMPILER.xxx
499		If defined, the support for compiler "xxx" is disabled.
500
501For the frontends (CC, CPP, CXX, FC and OBJC) the following variables exist:
502ACTIVE_CC	Active compile suite for the CC frontend.
503SUPPORTED_CC	Compile suite with support for the CC frontend.
504TOOL_CC.xxx	Path to the CC frontend for compiler "xxx"
505
506=-=-=-=-=   sys.mk   =-=-=-=-=
507
508The include file <sys.mk> has the default rules for all makes, in the BSD
509environment or otherwise.  You probably don't want to touch this file.
510
511=-=-=-=-=   bsd.own.mk   =-=-=-=-=
512
513The include file <bsd.own.mk> contains source tree configuration parameters,
514such as the owners, groups, etc. for both manual pages and binaries, and
515a few global "feature configuration" parameters.
516
517It has no targets.
518
519To get system-specific configuration parameters, <bsd.own.mk> will try to
520include the file specified by the "MAKECONF" variable.  If MAKECONF is not
521set, or no such file exists, the system make configuration file, /etc/mk.conf
522is included.  These files may define any of the variables described below.
523
524<bsd.own.mk> sets the following variables, if they are not already defined
525(defaults are in brackets):
526
527NETBSDSRCDIR	Top of the NetBSD source tree.
528		If _SRC_TOP_ != "", that will be used as the default,
529		otherwise BSDSRCDIR will be used as the default.
530		Various makefiles within the NetBSD source tree will
531		use this to reference the top level of the source tree.
532
533_SRC_TOP_	Top of the system source tree, as determined by <bsd.own.mk>
534		based on the presence of tools/ and build.sh.  This variable
535		is "internal" to <bsd.own.mk>, although its value is only
536		determined once and then propagated to all sub-makes.
537
538_NETBSD_VERSION_DEPENDS
539		A list of files which contain information about
540		the version of the NetBSD being built.  This is
541		defined only if the current directory appears
542		to be inside a NetBSD source tree.  The list of
543		files includes ${NETBSDSRCDIR}/sys/sys/param.h
544		(which contains the kernel version number),
545		${NETBSDSRCDIR}/sys/conf/newvers.sh and
546		${NETBSDSRCDIR}/sys/conf/osrelease.sh (which
547		interpret the information in sys/sys/param.h), and
548		${_SRC_TOP_OBJ_}/params (which is an optional file,
549		created by "make build" in ${_SRC_TOP_}/Makefile,
550		containing all the variables that may influence the
551		build).
552
553		Targets that depend on the NetBSD version, or on
554		variables defined at build time, can declare a
555		dependency on ${_NETBSD_VERSION_DEPENDS}, like this:
556
557			version.c: ${_NETBSD_VERSION_DEPENDS}
558				commands to create version.c
559
560BSDSRCDIR	The real path to the system sources, so that 'make obj'
561		will work correctly.  [/usr/src]
562
563BSDOBJDIR	The real path to the system 'obj' tree, so that 'make obj'
564		will work correctly.  [/usr/obj]
565
566BINGRP		Binary group.  [wheel]
567
568BINOWN		Binary owner.  [root]
569
570BINMODE		Binary mode.  [555]
571
572NONBINMODE	Mode for non-executable files.  [444]
573
574MANDIR		Base path for manual installation.  [/usr/share/man/cat]
575
576MANGRP		Manual group.  [wheel]
577
578MANOWN		Manual owner.  [root]
579
580MANMODE		Manual mode.  [${NONBINMODE}]
581
582MANINSTALL	Manual installation type.  Space separated list:
583			catinstall, htmlinstall, maninstall
584		Default value derived from MKCATPAGES and MKHTML.
585
586LDSTATIC	Control program linking; if set blank, link everything
587		dynamically.  If set to "-static", link everything statically.
588		If not set, programs link according to their makefile.
589
590LIBDIR		Base path for library installation.  [/usr/lib]
591
592LINTLIBDIR	Base path for lint(1) library installation.  [/usr/libdata/lint]
593
594LIBGRP		Library group.  [${BINGRP}]
595
596LIBOWN		Library owner.  [${BINOWN}]
597
598LIBMODE		Library mode.  [${NONBINMODE}]
599
600DOCDIR		Base path for system documentation (e.g. PSD, USD, etc.)
601	        installation.  [/usr/share/doc]
602
603HTMLDOCDIR	Base path for html system documentation installation.
604		[/usr/share/doc/html]
605
606DOCGRP		Documentation group.  [wheel]
607
608DOCOWN		Documentation owner.  [root]
609
610DOCMODE		Documentation mode.  [${NONBINMODE}]
611
612NLSDIR		Base path for Native Language Support files installation.
613		[/usr/share/nls]
614
615NLSGRP		Native Language Support files group.  [wheel]
616
617NLSOWN		Native Language Support files owner.  [root]
618
619NLSMODE		Native Language Support files mode.  [${NONBINMODE}]
620
621X11SRCDIR	The path to the xsrc tree.  [${NETBSDSRCDIR}/../xsrc,
622		if that exists; otherwise /usr/xsrc]
623
624X11SRCDIR.xc	The path to the (old) X11 xc src tree.  [${X11SRCDIR}/xfree/xc]
625
626X11SRCDIR.local	The path to the local X11 src tree.  [${X11SRCDIR}/local]
627
628X11SRCDIR.lib<package>
629X11SRCDIR.<package>
630		The path to the xorg src tree for the specificed package>.
631		[${X11SRCDIR}/external/mit/xorg/<package>/dist]
632
633X11ROOTDIR	Root directory of the X11 installation.  [/usr/X11R6 or
634		[/usr/X11R7]
635
636X11BINDIR	X11 bin directory.  [${X11ROOTDIR}/bin]
637
638X11FONTDIR	X11 font directory.  [${X11ROOTDIR}/lib/X11/fonts]
639
640X11INCDIR	X11 include directory.  [${X11ROOTDIR}/include]
641
642X11LIBDIR	X11 lib/x11 (config) directory.  [${X11ROOTDIR}/lib/X11]
643
644X11MANDIR	X11 manual directory.  [${X11ROOTDIR}/man]
645
646X11USRLIBDIR	X11 library directory.  [${X11ROOTDIR}/lib]
647
648STRIPFLAG	The flag passed to the install program to cause the binary
649		to be stripped.  This is to be used when building your
650		own install script so that the entire system can be made
651		stripped/not-stripped using a single knob.  []
652
653COPY		The flag passed to the install program to cause the binary
654		to be copied rather than moved.  This is to be used when
655		building our own install script so that the entire system
656		can either be installed with copies, or with moves using
657		a single knob.  [-c]
658
659MAKEDIRTARGETENV
660		Environment variables passed to the child make process
661		invoked by MAKEDIRTARGET.
662
663MAKEDIRTARGET dir target [params]
664		Runs "cd $${dir} && ${MAKE} [params] $${target}",
665		displaying a "pretty" message whilst doing so.
666
667RELEASEMACHINEDIR
668		Subdirectory used below RELEASEDIR when building
669		a release.  [${MACHINE}]
670
671RELEASEMACHINE	Subdirectory or path component used for the following
672		paths:
673			distrib/${RELEASEMACHINE}
674			distrib/notes/${RELEASEMACHINE}
675			etc/etc.${RELEASEMACHINE}
676		Used when building a release.  [${MACHINE}]
677
678Additionally, the following variables may be set by <bsd.own.mk> or in a
679make configuration file to modify the behavior of the system build
680process (default values are in brackets along with comments, if set by
681<bsd.own.mk>):
682
683USETOOLS	Indicates whether the tools specified by ${TOOLDIR} should
684		be used as part of a build in progress.
685		Supported values:
686
687		yes	Use the tools from TOOLDIR.
688			Must be set to this if cross-compiling.
689
690		no	Do not use the tools from TOOLDIR, but refuse to
691			build native compilation tool components that are
692			version-specific for that tool.
693
694		never	Do not use the tools from TOOLDIR, even when
695			building native tool components.  This is similar to
696			the traditional NetBSD build method, but does not
697			verify that the compilation tools in use are
698			up-to-date enough in order to build the tree
699			successfully.  This may cause build or runtime
700			problems when building the whole NetBSD source tree.
701
702		Default: "yes" if building all or part of a whole NetBSD
703		source tree (detected automatically); "no" otherwise
704		(to preserve traditional semantics of the <bsd.*.mk>
705		make(1) include files).
706
707OBJECT_FMT	Object file format.  [set to "ELF" on architectures that
708		use ELF -- currently all architectures].
709
710TOOLCHAIN_MISSING
711		If not "no", this indicates that the platform being built
712		does not have a working in-tree toolchain.  If the
713		${MACHINE_ARCH} in question falls into this category,
714		TOOLCHAIN_MISSING is conditionally assigned the value "yes".
715		Otherwise, the variable is unconditionally assigned the
716		value "no".
717		If not "no", ${MKBINUTILS}, ${MKGCC}, and ${MKGDB} are
718		unconditionally assigned the value "no".
719
720EXTERNAL_TOOLCHAIN
721		This variable is not directly set by <bsd.own.mk>, but
722		including <bsd.own.mk> is the canonical way to gain
723		access to this variable.  The variable should be defined
724		either in the user's environment or in the user's mk.conf
725		file.  If defined, this variable indicates the root of
726		an external toolchain which will be used to build the
727		tree.  For example, if a platform is a ${TOOLCHAIN_MISSING}
728		platform, EXTERNAL_TOOLCHAIN can be used to re-enable the
729		cross-compile framework.
730
731		If EXTERNAL_TOOLCHAIN is defined, ${MKGCC} is unconditionally
732		assigned the value "no", since the external version of the
733		compiler may not be able to build the library components of
734		the in-tree compiler.
735
736		NOTE: This variable is not yet used in as many places as
737		it should be.  Expect the exact semantics of this variable
738		to change in the short term as parts of the cross-compile
739		framework continue to be cleaned up.
740
741The following variables are defined to commands to perform the
742appropriate operation, with the default in [brackets].  Note that
743the defaults change if USETOOLS == "yes":
744
745TOOL_AMIGAAOUT2BB	aout to Amiga bootblock converter.  [amiga-aout2bb]
746
747TOOL_AMIGAELF2BB	ELF to Amiga bootblock converter.  [amiga-elf2bb]
748
749TOOL_AMIGATXLT		Amige assembly language format translator.  [amiga-txlt]
750
751TOOL_ASN1_COMPILE	ASN1 compiler.  [asn1_compile]
752
753TOOL_AWK		Pattern-directed scanning/processing language.  [awk]
754
755TOOL_CAP_MKDB		Create capability database.  [cap_mkdb]
756
757TOOL_CAT		Concatenate and print files.  [cat]
758
759TOOL_CKSUM		Display file checksums.  [cksum]
760
761TOOL_COMPILE_ET		Error table compiler.  [compile_et]
762
763TOOL_CONFIG		Build kernel compilation directories.  [config]
764
765TOOL_CRUNCHGEN		Generate crunched binary build environment.  [crunchgen]
766
767TOOL_CTAGS		Create a tags file.  [ctags]
768
769TOOL_DB			Manipulate db(3) databases.  [db]
770
771TOOL_DISKLABEL		Read and write disk pack label.  [disklabel]
772
773TOOL_EQN		Format equations for groff.  [eqn]
774
775TOOL_FDISK		MS-DOS partition maintenance program.  [fdisk]
776
777TOOL_FGEN		IEEE 1275 Open Firmware FCode Tokenizer.  [fgen]
778
779TOOL_GENASSYM		Generate constants for assembly files.  [genassym]
780
781TOOL_GENCAT		Generate NLS message catalogs.  [gencat]
782
783TOOL_GMAKE		GNU make utility.  [gmake]
784
785TOOL_GREP		Print lines matching a pattern.  [grep]
786
787TOOL_GROFF		Front end for groff document formatting system.  [groff]
788
789TOOL_HEXDUMP		Ascii, decimal, hexadecimal, octal dump.  [hexdump]
790
791TOOL_HP300MKBOOT	Make bootable image for hp300.  [hp300-mkboot]
792
793TOOL_HP700MKBOOT	Make bootable image for hp700.  [hp700-mkboot]
794
795TOOL_INDXBIB		Make bibliographic database's inverted index.  [indxbib]
796
797TOOL_INSTALLBOOT	Install disk bootstrap software.  [installboot]
798
799TOOL_INSTALL_INFO	Update info/dir entries.  [install-info]
800
801TOOL_JOIN		Relational database operator.  [join]
802
803TOOL_M4			M4 macro language processor.  [m4]
804
805TOOL_MACPPCFIXCOFF	Fix up xcoff headers for macppc.  [macppc-fixcoff]
806
807TOOL_MAKEFS		Create file system image from directory tree.  [makefs]
808
809TOOL_MAKEINFO		Translate Texinfo documents.  [makeinfo]
810
811TOOL_MAKEWHATIS		Create a whatis.db database.  [makewhatis]
812
813TOOL_MDSETIMAGE		Set kernel RAM disk image.  [mdsetimage]
814
815TOOL_MENUC		Menu compiler.  [menuc]
816
817TOOL_MIPSELF2ECOFF	Convert ELF-format executable to ECOFF for mips.
818			[mips-elf2ecoff]
819
820TOOL_MKCSMAPPER		Make charset mapping table.  [mkcsmapper]
821
822TOOL_MKESDB		Make encoding scheme database.  [mkesdb]
823
824TOOL_MKLOCALE		Make LC_CTYPE locale files.  [mklocale]
825
826TOOL_MKMAGIC		Create database for file(1).  [file]
827
828TOOL_MKNOD		Make device special file.  [mknod]
829
830TOOL_MKTEMP		Make (unique) temporary file name.  [mktemp]
831
832TOOL_MSGC		Simple message list compiler.  [msgc]
833
834TOOL_MTREE		Map a directory hierarchy.  [mtree]
835
836TOOL_PAX		Manipulate file archives and copy directories.  [pax]
837
838TOOL_PIC		Compile pictures for groff.  [pic]
839
840TOOL_PIGZ		Parallel compressor.  [pigz]
841
842TOOL_POWERPCMKBOOTIMAGE	Make bootable image for powerpc.  [powerpc-mkbootimage]
843
844TOOL_PWD_MKDB		Generate the password databases.  [pwd_mkdb]
845
846TOOL_REFER		Preprocess bibliographic references for groff.  [refer]
847
848TOOL_ROFF_ASCII		Generate ASCII groff output.  [nroff]
849
850TOOL_ROFF_DVI		Generate DVI groff output.  [${TOOL_GROFF} -Tdvi]
851
852TOOL_ROFF_HTML		Generate HTML groff output.
853			[${TOOL_GROFF} -Tlatin1 -mdoc2html]
854
855TOOL_ROFF_PS		Generate PS groff output.  [${TOOL_GROFF} -Tps]
856
857TOOL_ROFF_RAW		Generate "raw" groff output.  [${TOOL_GROFF} -Z]
858
859TOOL_RPCGEN		Remote Procedure Call (RPC) protocol compiler.  [rpcgen]
860
861TOOL_SED		Stream editor.  [sed]
862
863TOOL_SOELIM		Eliminate .so's from groff input.  [soelim]
864
865TOOL_SPARKCRC		Generate a crc suitable for use in a sparkive file.
866			[sparkcrc]
867
868TOOL_STAT		Display file status.  [stat]
869
870TOOL_STRFILE		Create a random access file for storing strings.
871			[strfile]
872
873TOOL_SUNLABEL		Read or modify a SunOS disk label.  [sunlabel]
874
875TOOL_TBL		Format tables for groff.  [tbl]
876
877TOOL_UUDECODE		Uudecode a binary file.  [uudecode]
878
879TOOL_VGRIND		Grind nice listings of programs.  [vgrind -f]
880
881TOOL_ZIC		Time zone compiler.  [zic]
882
883<bsd.own.mk> is generally useful when building your own Makefiles so that
884they use the same default owners etc. as the rest of the tree.
885
886
887=-=-=-=-=   bsd.clean.mk   =-=-=-=-=
888
889The include file <bsd.clean.mk> defines the clean and cleandir
890targets.  It uses the following variables:
891
892CLEANFILES	Files to remove for both the clean and cleandir targets.
893
894CLEANDIRFILES	Files to remove for the cleandir target, but not for
895		the clean target.
896
897MKCLEANSRC	Controls whether or not the clean and cleandir targets
898		will delete files from both the object directory,
899		${.OBJDIR}, and the source directory, ${.CURDIR}.
900
901		If MKCLEANSRC is set to "no", then the file names in
902		CLEANFILES or CLEANDIRFILES are interpreted relative
903		to the object directory, ${.OBJDIR}.  This is the
904		traditional behaviour.
905
906		If MKCLEANSRC is set to "yes", then the file deletion
907		is performed relative to both the object directory,
908		${.OBJDIR}, and the source directory, ${.CURDIR}.  (This
909		has no effect if ${.OBJDIR} is the same as ${.CURDIR}.)
910		Deleting files from ${.CURDIR} is intended to remove
911		stray output files that had been left in the source
912		directory by an earlier build that did not use object
913		directories.
914
915		The default is MKCLEANSRC=yes.  If you always build with
916		separate object directories, and you are sure that there
917		are no stray files in the source directories, then you
918		may set MKCLEANSRC=no to save some time.
919
920MKCLEANVERIFY	Controls whether or not the clean and cleandir targets
921		will verify that files have been deleted.
922
923		If MKCLEANVERIFY is set to "no", then the files will
924		be deleted using a "rm -f" command, and its success or
925		failure will be ignored.
926
927		If MKCLEANVERIFY is set to "yes", then the success of
928		the "rm -f" command will be verified using an "ls"
929		command.
930
931		The default is MKCLEANVERIFY=yes.  If you are sure that
932		there will be no problems caused by file permissions,
933		read-only file systems, or the like, then you may set
934		MKCLEANVERIFY=no to save some time.
935
936To use the clean and cleandir targets defined in <bsd.clean.mk>, other
937Makefiles or bsd.*.mk files should append file names to the CLEANFILES
938or CLEANDIRFILES variables.  For example:
939
940	    CLEANFILES+= a.out
941	    CLEANDIRFILES+= .depend
942
943	    .include <bsd.clean.mk>
944
945The files listed in CLEANFILES and CLEANDIRFILES must not be
946directories, because the potential risk from running "rm -rf" commands
947in bsd.clean.mk is considered too great.  If you want to recursively
948delete a directory as part of "make clean" or "make cleandir" then you
949need to provide your own target.
950
951=-=-=-=-=   bsd.dep.mk   =-=-=-=-=
952
953The include file <bsd.dep.mk> contains the default targets for building
954.depend files.  It creates .d files from entries in SRCS and DPSRCS
955that are C, C++, or Objective C source files, and builds .depend from the
956.d files.  All other files in SRCS and all of DPSRCS will be used as
957dependencies for the .d files.  In order for this to function correctly,
958it should be .included after all other .mk files and directives that may
959modify SRCS or DPSRCS.  It uses the following variables:
960
961SRCS		List of source files to build the program.
962
963DPSRCS		List of source files which are needed for generating
964		dependencies, but are not needed in ${SRCS}.
965
966
967=-=-=-=-=   bsd.files.mk   =-=-=-=-=
968
969The include file <bsd.files.mk> handles the FILES variables and is included
970from <bsd.lib.mk> and <bsd.prog.mk>, and uses the following variables:
971
972FILES		The list of files to install.
973
974CONFIGFILES	Similar semantics to FILES, except that the files
975		are installed by the `configinstall' target,
976		not the `install' target.
977		The FILES* variables documented below also apply.
978
979FILESOWN	File owner.  [${BINOWN}]
980
981FILESGRP	File group.  [${BINGRP}]
982
983FILESMODE	File mode.  [${NONBINMODE}]
984
985FILESDIR	The location to install the files.
986
987FILESNAME	Optional name to install each file as.
988
989FILESOWN_<fn>	File owner of the specific file <fn>.
990
991FILESGRP_<fn>	File group of the specific file <fn>.
992
993FILESMODE_<fn>	File mode of the specific file <fn>.
994
995FILESDIR_<fn>	The location to install the specific file <fn>.
996
997FILESNAME_<fn>	Optional name to install <fn> as.
998
999FILESBUILD	If this variable is defined, then its value will be
1000		used as the default for all FILESBUILD_<fn> variables.
1001		Otherwise, the default will be "no".
1002
1003FILESBUILD_<fn>	A value different from "no" will add the file to the list of
1004		targets to be built by `realall'.  Users of that variable
1005		should provide a target to build the file.
1006
1007
1008BUILDSYMLINKS	List of two word items:
1009			lnsrc lntgt
1010		For each lnsrc item, create a symlink named lntgt.
1011		The lntgt symlinks are removed by the cleandir target.
1012
1013UUDECODE_FILES	List of files which are stored as <file>.uue in the source
1014		tree. Each one will be decoded with ${TOOL_UUDECODE}.
1015		The source files have a `.uue' suffix, the generated files do
1016		not.
1017
1018UUDECODE_FILES_RENAME_<fn>
1019		Rename the output from the decode to the provided name.
1020
1021		*NOTE: These files are simply decoded, with no install or other
1022		       rule applying implicitly except being added to the clean
1023		       target.
1024
1025=-=-=-=-=   bsd.gcc.mk   =-=-=-=-=
1026
1027The include file <bsd.gcc.mk> computes various parameters related to GCC
1028support libraries.  It defines no targets.  <bsd.own.mk> MUST be included
1029before <bsd.gcc.mk>.
1030
1031The primary users of <bsd.gcc.mk> are <bsd.prog.mk> and <bsd.lib.mk>, each
1032of which need to know where to find certain GCC support libraries.
1033
1034The behavior of <bsd.gcc.mk> is influenced by the EXTERNAL_TOOLCHAIN variable,
1035which is generally set by the user.  If EXTERNAL_TOOLCHAIN it set, then
1036the compiler is asked where to find the support libraries, otherwise the
1037support libraries are found in ${DESTDIR}/usr/lib.
1038
1039<bsd.gcc.mk> sets the following variables:
1040
1041_GCC_CRTBEGIN	The full path name to crtbegin.o.
1042
1043_GCC_CRTBEGINS	The full path name to crtbeginS.o.
1044
1045_GCC_CRTEND	The full path name to crtend.o.
1046
1047_GCC_CRTENDS	The full path name to crtendS.o.
1048
1049_GCC_LIBGCCDIR	The directory where libgcc.a is located.
1050
1051
1052=-=-=-=-=   bsd.inc.mk   =-=-=-=-=
1053
1054The include file <bsd.inc.mk> defines the includes target and uses the
1055variables:
1056
1057INCS		The list of include files.
1058
1059INCSDIR		The location to install the include files.
1060
1061INCSNAME	Target name of the include file, if only one; same as
1062		FILESNAME, but for include files.
1063
1064INCSYMLINKS	Similar to SYMLINKS in <bsd.links.mk>, except that these
1065		are installed in the 'includes' target and not the
1066		(much later) 'install' target.
1067
1068INCSNAME_<file>	The name file <file> should be installed as, if not <file>,
1069		same as FILESNAME_<file>, but for include files.
1070
1071
1072=-=-=-=-=   bsd.info.mk   =-=-=-=-=
1073
1074The include file <bsd.info.mk> is used to generate and install GNU Info
1075documentation from respective Texinfo source files.  It defines three
1076implicit targets (.txi.info, .texi.info, and .texinfo.info), and uses the
1077following variables:
1078
1079TEXINFO		List of Texinfo source files.  Info documentation will
1080		consist of single files with the extension replaced by
1081		.info.
1082
1083INFOFLAGS	Flags to pass to makeinfo.  []
1084
1085
1086=-=-=-=-=   bsd.kernobj.mk   =-=-=-=-=
1087
1088The include file <bsd.kernobj.mk> defines variables related to the
1089location of kernel sources and object directories.
1090
1091KERNSRCDIR	Is the location of the top of the kernel src.
1092		[${_SRC_TOP_}/sys]
1093
1094KERNARCHDIR	Is the location of the machine dependent kernel sources.
1095		[arch/${MACHINE}]
1096
1097KERNCONFDIR	Is where the configuration files for kernels are found.
1098		[${KERNSRCDIR}/${KERNARCHDIR}/conf]
1099
1100KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
1101		instance will be compiled in ${KERNOBJDIR}/GENERIC.
1102		The default value is
1103		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
1104		if it exists or the target 'obj' is being made.
1105		Otherwise the default is
1106		${KERNSRCDIR}/${KERNARCHDIR}/compile.
1107
1108It is important that Makefiles (such as those under src/distrib) that
1109wish to find compiled kernels use <bsd.kernobj.mk> and ${KERNOBJDIR}
1110rather than make assumptions about the location of the compiled kernel.
1111
1112
1113=-=-=-=-=   bsd.kinc.mk   =-=-=-=-=
1114
1115The include file <bsd.kinc.mk> defines the many targets (includes,
1116subdirectories, etc.), and is used by kernel makefiles to handle
1117include file installation.  It is intended to be included alone, by
1118kernel Makefiles.  It uses similar variables to <bsd.inc.mk>.
1119Please see <bsd.kinc.mk> for more details, and keep the documentation
1120in that file up to date.
1121
1122
1123=-=-=-=-=   bsd.lib.mk   =-=-=-=-=
1124
1125The include file <bsd.lib.mk> has support for building libraries.  It has
1126the same eight targets as <bsd.prog.mk>: all, clean, cleandir, depend,
1127includes, install, lint, and tags.  Additionally, it has a checkver target
1128which checks for installed shared object libraries whose version is greater
1129that the version of the source. It has a limited number of suffixes,
1130consistent with the current needs of the BSD tree.  <bsd.lib.mk> includes
1131<bsd.shlib.mk> to get shared library parameters.
1132
1133It sets/uses the following variables:
1134
1135LIB		The name of the library to build.
1136
1137LIBDIR		Target directory for libraries.
1138
1139MKARZERO	Normally, ar(1) sets the timestamps, uid, gid and
1140		permissions in files inside its archives to those of
1141		the file it was fed. This leads to non-reproduceable
1142		builds. If MKARZERO is set to "yes" (default is "no")
1143		then the "D" flag is passed to ar, causing the
1144		timestamp, uid and gid to be zeroed and the file
1145		permissions to be set to 644. This allows .a files
1146		from different builds to be bit identical.
1147
1148SHLIBINSTALLDIR	Target directory for shared libraries if ${USE_SHLIBDIR}
1149		is not "no".
1150
1151SHLIB_MAJOR
1152SHLIB_MINOR
1153SHLIB_TEENY	Major, minor, and teeny version numbers of shared library
1154
1155USE_SHLIBDIR	If not "no", use ${SHLIBINSTALLDIR} instead of ${LIBDIR}
1156		as the path to install shared libraries to.
1157		USE_SHLIBDIR must be defined before <bsd.own.mk> is included.
1158		Default: no
1159
1160LIBISMODULE	If not "no", install as ${LIB}.so (without the "lib" prefix),
1161		and act as "MKDEBUGLIB=no MKLINT=no MKPICINSTALL=no
1162		MKPROFILE=no MKSTATICLIB=no".
1163		Default: no
1164
1165LIBISPRIVATE	If not "no", act as "MKDEBUGLIB=no MKLINT=no MKPIC=no
1166		MKPROFILE=no", and don't install the (.a) library.
1167		This is useful for "build only" helper libraries.
1168		Default: no
1169
1170LIBISCXX	If not "no", Use ${CXX} instead of ${CC} to link
1171		shared libraries.
1172		This is useful for C++ libraries.
1173		Default: no
1174
1175LINTLIBDIR	Target directory for lint libraries.
1176
1177LIBGRP		Library group.
1178
1179LIBOWN		Library owner.
1180
1181LIBMODE		Library mode.
1182
1183LDADD		Additional loader objects.
1184
1185MAN		The manual pages to be installed (use a .1 - .9 suffix).
1186
1187NOCHECKVER_<library>
1188NOCHECKVER	If set, disables checking for installed shared object
1189		libraries with versions greater than the source.  A
1190		particular library name, without the "lib" prefix, may
1191		be appended to the variable name to disable the check for
1192		only that library.
1193
1194SRCS		List of source files to build the library.  Suffix types
1195		.s, .c, and .f are supported.  Note, .s files are preferred
1196		to .c files of the same name.  (This is not the default for
1197		versions of make.)
1198
1199LIBDPLIBS	A list of the tuples:
1200			libname  path-to-srcdir-of-libname
1201
1202		For each tuple;
1203		     *	LIBDO.libname contains the .OBJDIR of the library
1204			`libname', and if it is not set it is determined
1205			from the srcdir and added to MAKEOVERRIDES (the
1206			latter is to allow for build time optimization).
1207		     *	LDADD gets  -L${LIBDO.libname} -llibname    added.
1208		     *	DPADD gets  ${LIBDO.libname}/liblibname.so  or
1209				    ${LIBDO.libname}/liblibname.a   added.
1210
1211		The special value "_external" for LIBDO.lib makes the
1212		build system to assume the library comes from outside
1213		of the NetBSD source tree and only causes -llibname
1214		to be added to LDADD.
1215
1216		This variable may be used for individual libraries, as
1217		well as in parent directories to cache common libraries
1218		as a build-time optimization.
1219
1220The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
1221if it exists, as well as the include file <bsd.man.mk>.
1222
1223It has rules for building profiled objects; profiled libraries are
1224built by default.
1225
1226Libraries are ranlib'd when made.
1227
1228
1229=-=-=-=-=   bsd.links.mk   =-=-=-=-=
1230
1231The include file <bsd.links.mk> handles the LINKS and SYMLINKS variables
1232and is included from from <bsd.lib.mk> and <bsd.prog.mk>.
1233
1234LINKSOWN, LINKSGRP, and LINKSMODE, are relevant only if a metadata log
1235is used. The defaults may be modified by other bsd.*.mk files which
1236include bsd.links.mk.  In the future, these variables may be replaced
1237by a method for explicitly recording hard links in a metadata log.
1238
1239LINKS		The list of hard links, consisting of pairs of paths:
1240			source-file target-file
1241		${DESTDIR} is prepended to both paths before linking.
1242		For example, to link /bin/test and /bin/[, use:
1243			LINKS=/bin/test /bin/[
1244
1245CONFIGLINKS	Similar semantics to LINKS, except that the links
1246		are installed by the `configinstall' target,
1247		not the `install' target.
1248
1249SYMLINKS	The list of symbolic links, consisting of pairs of paths:
1250			source-file target-file
1251		${DESTDIR} is only prepended to target-file before linking.
1252		For example, to symlink /usr/bin/tar to /bin/tar resulting
1253		in ${DESTDIR}/usr/bin/tar -> /bin/tar:
1254			SYMLINKS=/bin/tar /usr/bin/tar
1255
1256CONFIGSYMLINKS	Similar semantics to SYMLINKS, except that the symbolic links
1257		are installed by the `configinstall' target,
1258		not the `install' target.
1259
1260LINKSOWN	Link owner.  [${BINOWN}]
1261
1262LINKSGRP	Link group.  [${BINGRP}]
1263
1264LINKSMODE	Link mode.  [${NONBINMODE}]
1265
1266LINKSOWN_<fn>	Link owner of the specific file <fn>.
1267
1268LINKSGRP_<fn>	Link group of the specific file <fn>.
1269
1270LINKSMODE_<fn>	Link mode of the specific file <fn>.
1271
1272
1273=-=-=-=-=   bsd.man.mk   =-=-=-=-=
1274
1275The include file <bsd.man.mk> handles installing manual pages and their
1276links.
1277
1278It has a three targets:
1279
1280	catinstall:
1281		Install the preformatted manual pages and their links.
1282	htmlinstall:
1283		Install the HTML manual pages and their links.
1284	maninstall:
1285		Install the manual page sources and their links.
1286
1287It sets/uses the following variables:
1288
1289MANDIR		Base path for manual installation.
1290
1291MANGRP		Manual group.
1292
1293MANOWN		Manual owner.
1294
1295MANMODE		Manual mode.
1296
1297MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
1298		or "/tahoe" for machine specific manual pages.
1299
1300MAN		The manual pages to be installed (use a .1 - .9 suffix).
1301
1302MLINKS		List of manual page links (using a .1 - .9 suffix).  The
1303		linked-to file must come first, the linked file second,
1304		and there may be multiple pairs.
1305
1306The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
1307it exists.
1308
1309
1310=-=-=-=-=   bsd.obj.mk   =-=-=-=-=
1311
1312The include file <bsd.obj.mk> defines targets related to the creation
1313and use of separated object and source directories.
1314
1315If an environment variable named MAKEOBJDIRPREFIX is set, make(1) uses
1316${MAKEOBJDIRPREFIX}${.CURDIR} as the name of the object directory if
1317it exists.  Otherwise make(1) looks for the existence of a
1318subdirectory (or a symlink to a directory) of the source directory
1319into which built targets should be placed.  If an environment variable
1320named MAKEOBJDIR is set, make(1) uses its value as the name of the
1321object directory; failing that, make first looks for a subdirectory
1322named "obj.${MACHINE}", and if that doesn't exist, it looks for "obj".
1323
1324Object directories are not created automatically by make(1) if they
1325don't exist; you need to run a separate "make obj".  (This will happen
1326during a top-level build if "MKOBJDIRS" is set to a value other than
1327"no").  When the source directory is a subdirectory of ${BSDSRCDIR} --
1328and this is determined by a simple string prefix comparison -- object
1329directories are created in a separate object directory tree, and a
1330symlink to the object directory in that tree is created in the source
1331directory; otherwise, "make obj" assumes that you're not in the main
1332source tree and that it's not safe to use a separate object tree.
1333
1334Several variables used by <bsd.obj.mk> control exactly what
1335directories and links get created during a "make obj":
1336
1337MAKEOBJDIR	If set, this is the component name of the object
1338		directory.
1339
1340OBJMACHINE	If this is set but MAKEOBJDIR is not set, creates
1341		object directories or links named "obj.${MACHINE}";
1342		otherwise, just creates ones named "obj".
1343
1344USR_OBJMACHINE  If set, and the current directory is a subdirectory of
1345		${BSDSRCDIR}, create object directory in the
1346		corresponding subdirectory of ${BSDOBJDIR}.${MACHINE};
1347		otherwise, create it in the corresponding subdirectory
1348		of ${BSDOBJDIR}
1349
1350BUILDID		If set, the contents of this variable are appended
1351		to the object directory name.  If OBJMACHINE is also
1352		set, ".${BUILDID}" is added after ".${MACHINE}".
1353
1354
1355=-=-=-=-=   bsd.prog.mk   =-=-=-=-=
1356
1357The include file <bsd.prog.mk> handles building programs from one or
1358more source files, along with their manual pages.  It has a limited number
1359of suffixes, consistent with the current needs of the BSD tree.
1360<bsd.prog.mk> includes <bsd.shlib.mk> to get shared library parameters.
1361
1362It has eight targets:
1363
1364	all:
1365		build the program and its manual page.  This also
1366		creates a GDB initialization file (.gdbinit) in
1367		the objdir.  The .gdbinit file sets the shared library
1368		prefix to ${DESTDIR} to facilitate cross-debugging.
1369	clean:
1370		remove the program, any object files and the files a.out,
1371		Errs, errs, mklog, and ${PROG}.core.
1372	cleandir:
1373		remove all of the files removed by the target clean, as
1374		well as .depend, tags, and any manual pages.
1375		`distclean' is a synonym for `cleandir'.
1376	depend:
1377		make the dependencies for the source files, and store
1378		them in the file .depend.
1379	includes:
1380		install any header files.
1381	install:
1382		install the program and its manual pages; if the Makefile
1383		does not itself define the target install, the targets
1384		beforeinstall and afterinstall may also be used to cause
1385		actions immediately before and after the install target
1386		is executed.
1387	lint:
1388		run lint on the source files
1389	tags:
1390		create a tags file for the source files.
1391
1392It sets/uses the following variables:
1393
1394BINGRP		Binary group.
1395
1396BINOWN		Binary owner.
1397
1398BINMODE		Binary mode.
1399
1400CLEANDIRFILES	Additional files to remove for the cleandir target.
1401
1402CLEANFILES	Additional files to remove for the clean and cleandir targets.
1403
1404COPTS		Additional flags to the compiler when creating C objects.
1405
1406COPTS.<fn>	Additional flags to the compiler when creating the
1407		C objects for <fn>.
1408		For <fn>.[ly], "<fn>.c" must be used.
1409
1410CPUFLAGS	Additional flags to the compiler/assembler to select
1411		CPU instruction set options, CPU tuning options, etc.
1412
1413CPUFLAGS.<fn>	Additional flags to the compiler/assembler for <fn>.
1414		For <fn>.[ly], "<fn>.c" must be used.
1415
1416CPPFLAGS	Additional flags to the C pre-processor.
1417
1418CPPFLAGS.<fn>	Additional flags to the C pre-processor for <fn>.
1419		For <fn>.[ly], "<fn>.c" must be used.
1420
1421GDBINIT		List of GDB initialization files to add to "source"
1422		directives in the .gdbinit file that is created in the
1423		objdir.
1424
1425LDADD		Additional loader objects.  Usually used for libraries.
1426		For example, to load with the compatibility and utility
1427		libraries, use:
1428
1429			LDADD+=-lutil -lcompat
1430
1431LDFLAGS		Additional linker flags (passed to ${CC} during link).
1432
1433LINKS		See <bsd.links.mk>
1434
1435OBJCOPTS	Additional flags to the compiler when creating ObjC objects.
1436
1437OBJCOPTS.<fn>	Additional flags to the compiler when creating the
1438		ObjC objects for <fn>.
1439		For <fn>.[ly], "<fn>.c" must be used.
1440
1441SYMLINKS	See <bsd.links.mk>
1442
1443MAN		Manual pages (should end in .1 - .9).  If no MAN variable is
1444		defined, "MAN=${PROG}.1" is assumed.
1445
1446PAXCTL_FLAGS	If defined, run paxctl(1) on the program binary after link
1447		time, with the value of this variable as args to paxctl(1).
1448
1449PAXCTL_FLAGS.${PROG} Custom override for PAXCTL_FLAGS.
1450
1451PROG		The name of the program to build.  If not supplied, nothing
1452		is built.
1453
1454PROG_CXX	If defined, the name of the program to build.  Also
1455		causes <bsd.prog.mk> to link the program with the C++
1456		compiler rather than the C compiler.  PROG_CXX overrides
1457		the value of PROG if PROG is also set.
1458
1459PROGNAME	The name that the above program will be installed as, if
1460		different from ${PROG}.
1461
1462SRCS		List of source files to build the program.  If SRCS is not
1463		defined, it's assumed to be ${PROG}.c.
1464
1465DPSRCS		List of source files which are needed for generating
1466		dependencies, but are not needed in ${SRCS}.
1467
1468DPADD		Additional dependencies for the program.  Usually used for
1469		libraries.  For example, to depend on the compatibility and
1470		utility libraries use:
1471
1472			DPADD+=${LIBCOMPAT} ${LIBUTIL}
1473
1474		The following system libraries are predefined for DPADD:
1475
1476		LIBARCHIVE?=	${DESTDIR}/usr/lib/libarchive.a
1477		LIBASN1?=	${DESTDIR}/usr/lib/libasn1.a
1478		LIBATF_C?=	${DESTDIR}/usr/lib/libatf-c.a
1479		LIBATF_CXX?=	${DESTDIR}/usr/lib/libatf-c++.a
1480		LIBBIND9?=	${DESTDIR}/usr/lib/libbind9.a
1481		LIBBLUETOOTH?=	${DESTDIR}/usr/lib/libbluetooth.a
1482		LIBBSDMALLOC?=	${DESTDIR}/usr/lib/libbsdmalloc.a
1483		LIBBZ2?=	${DESTDIR}/usr/lib/libbz2.a
1484		LIBC?=		${DESTDIR}/usr/lib/libc.a
1485		LIBCOMPAT?=	${DESTDIR}/usr/lib/libcompat.a
1486		LIBCOM_ERR?=	${DESTDIR}/usr/lib/libcom_err.a
1487		LIBCRT0?=	${DESTDIR}/usr/lib/crt0.o
1488		LIBCRTI?=	${DESTDIR}/usr/lib/crti.o
1489		LIBCRYPT?=	${DESTDIR}/usr/lib/libcrypt.a
1490		LIBCRYPTO?=	${DESTDIR}/usr/lib/libcrypto.a
1491		LIBCRYPTO_IDEA?=${DESTDIR}/usr/lib/libcrypto_idea.a
1492		LIBCRYPTO_MDC2?=${DESTDIR}/usr/lib/libcrypto_mdc2.a
1493		LIBCRYPTO_RC5?=	${DESTDIR}/usr/lib/libcrypto_rc5.a
1494		LIBCURSES?=	${DESTDIR}/usr/lib/libcurses.a
1495		LIBC_PIC?=	${DESTDIR}/usr/lib/libc_pic.a
1496		LIBDBM?=	${DESTDIR}/usr/lib/libdbm.a
1497		LIBDES?=	${DESTDIR}/usr/lib/libdes.a
1498		LIBDNS?=	${DESTDIR}/usr/lib/libdns.a
1499		LIBEDIT?=	${DESTDIR}/usr/lib/libedit.a
1500		LIBEVENT?=	${DESTDIR}/usr/lib/libevent.a
1501		LIBEVENT_OPENSSL?=	${DESTDIR}/usr/lib/libevent_openssl.a
1502		LIBEVENT_PTHREADS?=	${DESTDIR}/usr/lib/libevent_pthreads.a
1503		LIBEXPAT?=	${DESTDIR}/usr/lib/libexpat.a
1504		LIBFETCH?=	${DESTDIR}/usr/lib/libfetch.a
1505		LIBFORM?=	${DESTDIR}/usr/lib/libform.a
1506		LIBFL?=		${DESTDIR}/usr/lib/libfl.a
1507		LIBG2C?=	${DESTDIR}/usr/lib/libg2c.a
1508		LIBGCC?=	${DESTDIR}/usr/lib/libgcc.a
1509		LIBGNUMALLOC?=	${DESTDIR}/usr/lib/libgnumalloc.a
1510		LIBGSSAPI?=	${DESTDIR}/usr/lib/libgssapi.a
1511		LIBHDB?=	${DESTDIR}/usr/lib/libhdb.a
1512		LIBHEIMBASE?=	${DESTDIR}/usr/lib/libheimbase.a
1513		LIBHEIMNTLM?=	${DESTDIR}/usr/lib/libheimntlm.a
1514		LIBHX500?=	${DESTDIR}/usr/lib/libhx500.a
1515		LIBINTL?=	${DESTDIR}/usr/lib/libintl.a
1516		LIBIPSEC?=	${DESTDIR}/usr/lib/libipsec.a
1517		LIBISC?=	${DESTDIR}/usr/lib/libisc.a
1518		LIBISCCC?=	${DESTDIR}/usr/lib/libisccc.a
1519		LIBISCFG?=	${DESTDIR}/usr/lib/libiscfg.a
1520		LIBKADM5CLNT?=	${DESTDIR}/usr/lib/libkadm5clnt.a
1521		LIBKADM5SRV?=	${DESTDIR}/usr/lib/libkadm5srv.a
1522		LIBKAFS?=	${DESTDIR}/usr/lib/libkafs.a
1523		LIBKRB5?=	${DESTDIR}/usr/lib/libkrb5.a
1524		LIBKVM?=	${DESTDIR}/usr/lib/libkvm.a
1525		LIBL?=		${DESTDIR}/usr/lib/libl.a
1526		LIBLBER?=	${DESTDIR}/usr/lib/liblber.a
1527		LIBLDAP?=	${DESTDIR}/usr/lib/libldap.a
1528		LIBLDAP_R?=	${DESTDIR}/usr/lib/libldap_r.a
1529		LIBLUA?=	${DESTDIR}/usr/lib/liblua.a
1530		LIBLUTOK?=	${DESTDIR}/usr/lib/liblutok.a
1531		LIBLWRES?=	${DESTDIR}/usr/lib/liblwres.a
1532		LIBM?=		${DESTDIR}/usr/lib/libm.a
1533		LIBMAGIC?=	${DESTDIR}/usr/lib/libmagic.a
1534		LIBMENU?=	${DESTDIR}/usr/lib/libmenu.a
1535		LIBOBJC?=	${DESTDIR}/usr/lib/libobjc.a
1536		LIBOSSAUDIO?=	${DESTDIR}/usr/lib/libossaudio.a
1537		LIBPAM?=	${DESTDIR}/usr/lib/libpam.a
1538		LIBPCAP?=	${DESTDIR}/usr/lib/libpcap.a
1539		LIBPCI?=	${DESTDIR}/usr/lib/libpci.a
1540		LIBPMC?=	${DESTDIR}/usr/lib/libpmc.a
1541		LIBPOSIX?=	${DESTDIR}/usr/lib/libposix.a
1542		LIBPTHREAD?=	${DESTDIR}/usr/lib/libpthread.a
1543		LIBPTHREAD_DBG?=${DESTDIR}/usr/lib/libpthread_dbg.a
1544		LIBPUFFS?=	${DESTDIR}/usr/lib/libpuffs.a
1545		LIBQUOTA?=	${DESTDIR}/usr/lib/libquota.a
1546		LIBRADIUS?=	${DESTDIR}/usr/lib/libradius.a
1547		LIBRESOLV?=	${DESTDIR}/usr/lib/libresolv.a
1548		LIBRMT?=	${DESTDIR}/usr/lib/librmt.a
1549		LIBROKEN?=	${DESTDIR}/usr/lib/libroken.a
1550		LIBRPCSVC?=	${DESTDIR}/usr/lib/librpcsvc.a
1551		LIBRT?=		${DESTDIR}/usr/lib/librt.a
1552		LIBRUMP?=	${DESTDIR}/usr/lib/librump.a
1553		LIBRUMPFS_CD9660FS?=${DESTDIR}/usr/lib/librumpfs_cd9660fs.a
1554		LIBRUMPFS_EFS?=	${DESTDIR}/usr/lib/librumpfs_efs.a
1555		LIBRUMPFS_EXT2FS?=${DESTDIR}/usr/lib/librumpfs_ext2fs.a
1556		LIBRUMPFS_FFS?=	${DESTDIR}/usr/lib/librumpfs_ffs.a
1557		LIBRUMPFS_HFS?=	${DESTDIR}/usr/lib/librumpfs_hfs.a
1558		LIBRUMPFS_LFS?=	${DESTDIR}/usr/lib/librumpfs_lfs.a
1559		LIBRUMPFS_MSDOSFS?=${DESTDIR}/usr/lib/librumpfs_msdosfs.a
1560		LIBRUMPFS_NFS?=	${DESTDIR}/usr/lib/librumpfs_nfs.a
1561		LIBRUMPFS_NTFS?=${DESTDIR}/usr/lib/librumpfs_ntfs.a
1562		LIBRUMPFS_SYSPUFFS?=${DESTDIR}/usr/lib/librumpfs_syspuffs.a
1563		LIBRUMPFS_TMPFS?=${DESTDIR}/usr/lib/librumpfs_tmpfs.a
1564		LIBRUMPFS_UDF?=	${DESTDIR}/usr/lib/librumpfs_udf.a
1565		LIBRUMPFS_UFS?=	${DESTDIR}/usr/lib/librumpfs_ufs.a
1566		LIBRUMPUSER?=	${DESTDIR}/usr/lib/librumpuser.a
1567		LIBSASLC?=	${DESTDIR}/usr/lib/libsaslc.a
1568		LIBSKEY?=	${DESTDIR}/usr/lib/libskey.a
1569		LIBSL?=		${DESTDIR}/usr/lib/libsl.a
1570		LIBSQLITE3?=	${DESTDIR}/usr/lib/libsqlite3.a
1571		LIBSS?=		${DESTDIR}/usr/lib/libss.a
1572		LIBSSH?=	${DESTDIR}/usr/lib/libssh.a
1573		LIBSSL?=	${DESTDIR}/usr/lib/libssl.a
1574		LIBSSP?=	${DESTDIR}/usr/lib/libssp.a
1575		LIBSTDCXX?=	${DESTDIR}/usr/lib/libstdc++.a
1576		LIBSUPCXX?=	${DESTDIR}/usr/lib/libsupc++.a
1577		LIBTERMINFO?=	${DESTDIR}/usr/lib/libterminfo.a
1578		LIBTRE?=	${DESTDIR}/usr/lib/libtre.a
1579		LIBUSBHID?=	${DESTDIR}/usr/lib/libusbhid.a
1580		LIBUTIL?=	${DESTDIR}/usr/lib/libutil.a
1581		LIBWIND?=	${DESTDIR}/usr/lib/libwind.a
1582		LIBWRAP?=	${DESTDIR}/usr/lib/libwrap.a
1583		LIBY?=		${DESTDIR}/usr/lib/liby.a
1584		LIBZ?=		${DESTDIR}/usr/lib/libz.a
1585
1586		The following X-Windows libraries are predefined for DPADD:
1587
1588		LIBFS?=		${DESTDIR}/usr/X11R7/lib/libFS.a
1589		LIBGL?=		${DESTDIR}/usr/X11R7/lib/libGL.a
1590		LIBGLU?=	${DESTDIR}/usr/X11R7/lib/libGLU.a
1591		LIBICE?=	${DESTDIR}/usr/X11R7/lib/libICE.a
1592		LIBSM?=		${DESTDIR}/usr/X11R7/lib/libSM.a
1593		LIBX11?=	${DESTDIR}/usr/X11R7/lib/libX11.a
1594		LIBX11_XCB?=	${DESTDIR}/usr/X11R7/lib/libX11-xcb.a
1595		LIBXTRAP?=	${DESTDIR}/usr/X11R7/lib/libXTrap.a
1596		LIBXAU?=	${DESTDIR}/usr/X11R7/lib/libXau.a
1597		LIBXAW?=	${DESTDIR}/usr/X11R7/lib/libXaw.a
1598		LIBXCB?=	${DESTDIR}/usr/X11R7/lib/libxcb.a
1599		LIBXDMCP?=	${DESTDIR}/usr/X11R7/lib/libXdmcp.a
1600		LIBXEXT?=	${DESTDIR}/usr/X11R7/lib/libXext.a
1601		LIBXFONT?=	${DESTDIR}/usr/X11R7/lib/libXfont.a
1602		LIBXFT?=	${DESTDIR}/usr/X11R7/lib/libXft.a
1603		LIBXI?=		${DESTDIR}/usr/X11R7/lib/libXi.a
1604		LIBXINERAMA?=	${DESTDIR}/usr/X11R7/lib/libXinerama.a
1605		LIBXMU?=	${DESTDIR}/usr/X11R7/lib/libXmu.a
1606		LIBXMUU?=	${DESTDIR}/usr/X11R7/lib/libXmuu.a
1607		LIBXPM?=	${DESTDIR}/usr/X11R7/lib/libXpm.a
1608		LIBXRANDR?=	${DESTDIR}/usr/X11R7/lib/libXrandr.a
1609		LIBXRENDER?=	${DESTDIR}/usr/X11R7/lib/libXrender.a
1610		LIBXSS?=	${DESTDIR}/usr/X11R7/lib/libXss.a
1611		LIBXT?=		${DESTDIR}/usr/X11R7/lib/libXt.a
1612		LIBXTST?=	${DESTDIR}/usr/X11R7/lib/libXtst.a
1613		LIBXV?=		${DESTDIR}/usr/X11R7/lib/libXv.a
1614		LIBXXF86DGA?=	${DESTDIR}/usr/X11R7/lib/libXxf86dga.a
1615		LIBXXF86MISC?=	${DESTDIR}/usr/X11R7/lib/libXxf86misc.a
1616		LIBXXF86VM?=	${DESTDIR}/usr/X11R7/lib/libXxf86vm.a
1617		LIBDPS?=	${DESTDIR}/usr/X11R7/lib/libdps.a
1618		LIBFNTSTUBS?=	${DESTDIR}/usr/X11R7/lib/libfntstubs.a
1619		LIBFONTCACHE?=	${DESTDIR}/usr/X11R7/lib/libfontcache.a
1620		LIBFONTCONFIG?=	${DESTDIR}/usr/X11R7/lib/libfontconfig.a
1621		LIBFONTENC?=	${DESTDIR}/usr/X11R7/lib/libfontenc.a
1622		LIBFREETYPE?=	${DESTDIR}/usr/X11R7/lib/libfreetype.a
1623		LIBLBXUTIL?=	${DESTDIR}/usr/X11R7/lib/liblbxutil.a
1624		LIBXKBFILE?=	${DESTDIR}/usr/X11R7/lib/libxkbfile.a
1625
1626SHAREDSTRINGS	If defined, a new .c.o rule is used that results in shared
1627		strings, using xstr(1). Note that this will not work with
1628		parallel makes.
1629
1630STRIPFLAG	The flag passed to the install program to cause the binary
1631		to be stripped.
1632
1633SUBDIR		A list of subdirectories that should be built as well.
1634		Each of the targets will execute the same target in the
1635		subdirectories.
1636
1637SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
1638		These are installed exactly like programs.
1639
1640SCRIPTSDIR	The location to install the scripts.  Each script can be
1641		installed to a separate path by setting SCRIPTSDIR_<script>.
1642
1643SCRIPTSNAME	The name that the above program will be installed as, if
1644		different from ${SCRIPTS}. These can be further specialized
1645		by setting SCRIPTSNAME_<script>.
1646
1647FILES		See description of <bsd.files.mk>.
1648
1649SHLINKDIR	Target directory for shared linker.  See description of
1650		<bsd.own.mk> for additional information about this variable.
1651
1652The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
1653if it exists, as well as the include file <bsd.man.mk>.
1654
1655Some simple examples:
1656
1657To build foo from foo.c with a manual page foo.1, use:
1658
1659	PROG=	foo
1660
1661	.include <bsd.prog.mk>
1662
1663To build foo from foo.c with a manual page foo.2, add the line:
1664
1665	MAN=	foo.2
1666
1667If foo does not have a manual page at all, add the line:
1668
1669	MKMAN=	no
1670
1671If foo has multiple source files, add the line:
1672
1673	SRCS=	a.c b.c c.c d.c
1674
1675
1676=-=-=-=-=   bsd.rpc.mk   =-=-=-=-=
1677
1678The include file <bsd.rpc.mk> contains a makefile fragment used to
1679construct source files built by rpcgen.
1680
1681The following macros may be defined in makefiles which include
1682<bsd.rpc.mk> in order to control which files get built and how they
1683are to be built:
1684
1685RPC_INCS:	construct .h file from .x file
1686RPC_XDRFILES:	construct _xdr.c from .x file
1687		(for marshalling/unmarshalling data types)
1688RPC_SVCFILES:	construct _svc.c from .x file
1689		(server-side stubs)
1690RPC_SVCFLAGS:	Additional flags passed to builds of RPC_SVCFILES.
1691
1692RPC_XDIR:	Directory containing .x/.h files
1693
1694
1695=-=-=-=-=   bsd.shlib.mk   =-=-=-=-=
1696
1697The include file <bsd.shlib.mk> computes parameters for shared library
1698installation and use.  It defines no targets.  <bsd.own.mk> MUST be
1699included before <bsd.shlib.mk>.
1700
1701<bsd.own.mk> sets the following variables, if they are not already defined
1702(defaults are in brackets):
1703
1704SHLIBINSTALLDIR	If ${USE_SHLIBDIR} is not "no", use ${SHLIBINSTALLDIR}
1705		instead of ${LIBDIR} as the base path for shared library
1706		installation.  [/lib]
1707
1708SHLIBDIR	The path to USE_SHLIBDIR shared libraries to use when building
1709		a program.  [/lib for programs in /bin and /sbin, /usr/lib
1710		for all others.]
1711
1712_LIBSODIR	Set to ${SHLIBINSTALLDIR} if ${USE_SHLIBDIR} is not "no",
1713		otherwise set to ${LIBDIR}
1714
1715SHLINKINSTALLDIR Base path for shared linker.  [/libexec]
1716
1717SHLINKDIR	Path to use for shared linker when building a program.
1718		[/libexec for programs in /bin and /sbin, /usr/libexec for
1719		all others.]
1720
1721
1722=-=-=-=-=   bsd.subdir.mk   =-=-=-=-=
1723
1724The include file <bsd.subdir.mk> contains the default targets for building
1725subdirectories.  It has the same eight targets as <bsd.prog.mk>: all,
1726clean, cleandir, depend, includes, install, lint, and tags.  It uses the
1727following variables:
1728
1729NOSUBDIR	If this variable is defined, then the SUBDIR variable
1730		will be ignored and subdirectories will not be processed.
1731
1732SUBDIR		For all of the directories listed in ${SUBDIR}, the
1733		specified directory will be visited and the target made.
1734
1735		As a special case, the use of a token .WAIT as an
1736		entry in SUBDIR acts as a synchronization barrier
1737		when multiple make jobs are run; subdirs before the
1738		.WAIT must complete before any subdirs after .WAIT are
1739		started.  See make(1) for some caveats on use of .WAIT
1740		and other special sources.
1741
1742
1743=-=-=-=-=   bsd.sys.mk   =-=-=-=-=
1744
1745The include file <bsd.sys.mk> is used by <bsd.prog.mk> and
1746<bsd.lib.mk>.  It contains overrides that are used when building
1747the NetBSD source tree.
1748
1749The following variables control how various files are compiled/built.
1750(Note that these may be overridden in <bsd.own.mk> if USETOOLS == "yes"):
1751
1752AR		Create, modify, and extract from archives.  [ar]
1753
1754ARFLAGS		Options to ${AR}.  [rl]
1755
1756AS		Assembler.  [as]
1757
1758AFLAGS		Options to ${CC} when compiling or linking .s or .S
1759		assembly source files.  []
1760
1761BUILDSEED	GCC uses random numbers when compiling C++ code.
1762		If this option is present, seed the random number
1763		generator based on the value, source file names and
1764		the output file name to make builds more deterministic.
1765		Additional information is available in the GCC
1766		documentation of -frandom-seed.
1767
1768CC		C compiler.  [cc]
1769
1770CFLAGS		Options to ${CC}.  [Usually -O or -O2]
1771
1772CPP		C Pre-Processor.  [cpp]
1773
1774CPPFLAGS	Options to ${CPP}.  []
1775
1776CPUFLAGS	Optimization flags for ${CC}.  []
1777
1778CXX		C++ compiler.  [c++]
1779
1780CXXFLAGS	Options to ${CXX}.  [${CFLAGS}]
1781
1782ELF2ECOFF	Convert ELF-format executable to ECOFF.  [elf2ecoff]
1783
1784FC		Fortran compiler.  [f77]
1785
1786FFLAGS		Options to {$FC}.  [-O]
1787
1788HOST_SH		Shell.	This must be an absolute path, because it may be
1789		substituted into "#!" lines in scripts.	 [/bin/sh]
1790
1791INSTALL		install(1) command.  [install]
1792
1793LEX		Lexical analyzer.  [lex]
1794
1795LFLAGS		Options to ${LEX}.  []
1796
1797LPREFIX		Symbol prefix for ${LEX} (see -P option in lex(1)) [yy]
1798
1799LD		Linker.  [ld]
1800
1801LDFLAGS		Options to ${CC} during the link process.  []
1802
1803LINT		C program verifier.  [lint]
1804
1805LINTFLAGS	Options to ${LINT}.  [-chapbxzFS]
1806
1807LORDER		List dependencies for object files.  [lorder]
1808
1809MAKE		make(1).  [make]
1810
1811MKDEP		Construct Makefile dependency list.  [mkdep]
1812
1813MKDEPCXX	Construct Makefile dependency list for C++ files.  [mkdep]
1814
1815NM		List symbols from object files.  [nm]
1816
1817PC		Pascal compiler.  [pc]  (Not present)
1818
1819PFLAGS		Options to ${PC}.  []
1820
1821OBJC		Objective C compiler.  [${CC}]
1822
1823OBJCFLAGS	Options to ${OBJC}.  [${CFLAGS}]
1824
1825OBJCOPY		Copy and translate object files.  [objcopy]
1826
1827OBJCOPYLIBFLAGS	Flags to pass to objcopy when library objects are
1828		being built. [${.TARGET} =~ "*.po" ? -X : -x]
1829
1830OBJDUMP		Display information from object files.  [objdump]
1831
1832RANLIB		Generate index to archive.  [ranlib]
1833
1834SIZE		List section sizes and total size.  [size]
1835
1836STRIP		Discard symbols from object files.  [strip]
1837
1838TSORT		Topological sort of a directed graph.  [tsort -q]
1839
1840YACC		LALR(1) parser generator.  [yacc]
1841
1842YFLAGS		Options to ${YACC}.  []
1843
1844YHEADER		If defined, add "-d" to YFLAGS, and add dependencies
1845		from <file>.y to <file>.h and <file>.c, and add
1846		<foo>.h to CLEANFILES.
1847
1848YPREFIX		If defined, add "-p ${YPREFIX}" to YFLAGS.
1849
1850
1851Other variables of note (incomplete list):
1852
1853NOGCCERROR	If defined, prevents passing certain ${CFLAGS} to GCC
1854		that cause warnings to be fatal, such as:
1855			-Werror -Wa,--fatal-warnings
1856		(The latter being for as(1).)
1857
1858NOCLANGERROR	If defined and clang is used as C compiler, -Werror is not
1859		passed to it.
1860
1861WARNS		Crank up compiler warning options; the distinct levels are:
1862			WARNS=1
1863			WARNS=2
1864			WARNS=3
1865			WARNS=4
1866			WARNS=5
1867
1868=-=-=-=-=   bsd.x11.mk   =-=-=-=-=
1869
1870The include file <bsd.x11.mk> contains parameters and targets for
1871cross-building X11 from ${X11SRCDIR.xc} / ${X11MITSRCDIR.*}.
1872It should be included after the general Makefile contents but before
1873the include files such as <bsd.prog.mk> and <bsd.lib.mk>.
1874
1875It provides the following targets:
1876	.man.1 .man.3 .man.4 .man.5 .man.7:
1877		If ${MAN} or ${PROG} is set and ${MKMAN} != "no",
1878		these rules convert from X11's manual page source
1879		into an mdoc.old source file.
1880
1881It sets the following variables:
1882
1883BINDIR			Set to ${X11BINDIR}.
1884			To override, define after including <bsd.x11.mk>
1885
1886LIBDIR			Set to ${X11USRLIBDIR}.
1887			To override, define after including <bsd.x11.mk>
1888
1889MANDIR			Set to ${X11MANDIR}.
1890			To override, define after including <bsd.x11.mk>
1891
1892CPPFLAGS		Appended with definitions to include from
1893			${DESTDIR}${X11INCDIR}
1894
1895LDFLAGS			Appended with definitions to link from
1896			${DESTDIR}${X11USRLIBDIR}
1897
1898X11FLAGS.CONNECTION	Equivalent to X11's CONNECTION_FLAGS.
1899
1900X11FLAGS.EXTENSION	Equivalent to X11's EXT_DEFINES.
1901
1902X11FLAGS.LOADABLE	Equivalent to X11's LOADABLE.
1903
1904X11FLAGS.OS_DEFINES	Equivalent to X11's OS_DEFINES.
1905
1906X11FLAGS.SERVER		Equivalent to X11's ServerDefines.
1907
1908X11FLAGS.THREADLIB	Equivalent to X11's THREADS_DEFINES for libraries.
1909
1910X11FLAGS.THREADS	Equivalent to X11's THREADS_DEFINES.
1911
1912X11FLAGS.VERSION	cpp(1) definitions of OSMAJORVERSION and OSMINORVERSION.
1913
1914X11FLAGS.DIX		Equivalent to X11's DIX_DEFINES.
1915
1916X11TOOL_UNXCOMM		Commandline to convert `XCOMM' comments to `#'
1917
1918It uses the following variables:
1919
1920APPDEFS			List of app-default files to install.
1921
1922CPPSCRIPTS		List of files/scripts to run through cpp(1)
1923			and then ${X11TOOL_UNXCOMM}.  The source files
1924			have a `.cpp' suffix, the generated files do not.
1925
1926CPPSCRIPTFLAGS		Additional flags to cpp(1) when building CPPSCRIPTS.
1927
1928CPPSCRIPTFLAGS_<fn>	Additional flags to cpp(1) when building CPPSCRIPT <fn>.
1929
1930
1931=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
1932