xref: /freebsd/share/mk/bsd.README (revision 0957b409a90fd597c1e9124cbaf3edd2b488f4ac)
1#	@(#)bsd.README	8.2 (Berkeley) 4/2/94
2# $FreeBSD$
3
4This is the README file for the "include" files for the FreeBSD
5source tree.  The files are installed in /usr/share/mk, and are by
6convention, named with the suffix ".mk".  These files store several
7build options and should be handled with caution.
8
9Note, this file is not intended to replace reading through the .mk
10files for anything tricky.
11
12There are two main types of make include files.  One type is the generally
13usable make include files, such as bsd.prog.mk and bsd.lib.mk.  The other is
14the internal make include files, such as bsd.files.mk and bsd.man.mk, which
15can not/should not be used directly but are used by the other make include
16files.  In most cases it is only interesting to include bsd.prog.mk or
17bsd.lib.mk.
18
19bsd.arch.inc.mk		- includes arch-specific Makefile.$arch
20bsd.compiler.mk		- defined based on current compiler
21bsd.confs.mk		- install of configuration files
22bsd.cpu.mk		- sets CPU/arch-related variables (included from sys.mk)
23bsd.crunchgen.mk	- building crunched binaries using crunchgen(1)
24bsd.dep.mk		- handle Makefile dependencies
25bsd.dirs.mk		- handle directory creation
26bsd.doc.mk		- building troff system documents
27bsd.endian.mk		- TARGET_ENDIAN=1234(little) or 4321 (big) for target
28bsd.files.mk		- install of general purpose files
29bsd.incs.mk		- install of include files
30bsd.info.mk		- building GNU Info hypertext system (deprecated)
31bsd.init.mk		- initialization for the make include files
32bsd.kmod.mk		- building loadable kernel modules
33bsd.lib.mk		- support for building libraries
34bsd.libnames.mk		- define library names
35bsd.links.mk		- install of links (sym/hard)
36bsd.man.mk		- install of manual pages and their links
37bsd.nls.mk		- build and install of NLS catalogs
38bsd.obj.mk		- creating 'obj' directories and cleaning up
39bsd.own.mk		- define common variables
40bsd.port.mk		- building ports
41bsd.port.post.mk	- building ports
42bsd.port.pre.mk		- building ports
43bsd.port.subdir.mk	- targets for building subdirectories for ports
44bsd.prog.mk		- building programs from source files
45bsd.progs.mk		- build multiple programs from sources
46bsd.snmpmod.mk		- building modules for the SNMP daemon bsnmpd
47bsd.subdir.mk		- targets for building subdirectories
48bsd.sys.mk		- common settings used for building FreeBSD sources
49bsd.test.mk		- building test programs from source files
50sys.mk			- default rules for all makes
51
52This file does not document bsd.port*.mk.  They are documented in ports(7).
53
54See also make(1), mkdep(1), style.Makefile(5) and `PMake - A
55Tutorial', located in /usr/share/doc/psd/12.make.
56
57=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
58
59Random things worth knowing about this document:
60
61If appropriate when documenting the variables the default value is
62indicated using square brackets e.g. [gzip].
63In some cases the default value depend on other values (e.g. system
64architecture).  In these cases the most common value is indicated.
65
66This document contains some simple examples of the usage of the BSD make
67include files.  For more examples look at the makefiles in the FreeBSD
68source tree.
69
70=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
71
72RANDOM THINGS WORTH KNOWING:
73
74The files are like C-style #include files, and pretty much behave like
75you'd expect.  The syntax is slightly different in that a single '.' is
76used instead of the hash mark, i.e. ".include <bsd.prog.mk>".
77
78One difference that will save you lots of debugging time is that inclusion
79of the file is normally done at the *end* of the Makefile.  The reason for
80this is because .mk files often modify variables and behavior based on the
81values of variables set in the Makefile.  To make this work, remember that
82the FIRST target found is the target that is used, i.e. if the Makefile has:
83
84	a:
85		echo a
86	a:
87		echo a number two
88
89the command "make a" will echo "a".  To make things confusing, the SECOND
90variable assignment is the overriding one, i.e. if the Makefile has:
91
92	a=	foo
93	a=	bar
94
95	b:
96		echo ${a}
97
98the command "make b" will echo "bar".  This is for compatibility with the
99way the V7 make behaved.
100
101It's fairly difficult to make the BSD .mk files work when you're building
102multiple programs in a single directory.  It's a lot easier to split up
103the programs than to deal with the problem.  Most of the agony comes from
104making the "obj" directory stuff work right, not because we switch to a new
105version of make.  So, don't get mad at us, figure out a better way to handle
106multiple architectures so we can quit using the symbolic link stuff.
107(Imake doesn't count.)
108
109The file .depend in the source directory is expected to contain dependencies
110for the source files.  This file is read automatically by make after reading
111the Makefile.
112
113The variable DESTDIR works as before.  It's not set anywhere but will change
114the tree where the file gets installed.
115
116The profiled libraries are no longer built in a different directory than
117the regular libraries.  A new suffix, ".po", is used to denote a profiled
118object, and ".pico" denotes a position-independent relocatable object.
119".nossppico" denotes a position-independent relocatable object without
120stack smashing protection.
121
122=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
123
124The following variables are common:
125
126AFLAGS.${SRC}
127		Flags dependent on source file name.
128ACFLAGS.${SRC}
129		Flags dependent on source file name.
130CFLAGS.${SRC}
131		Flags dependent on source file name.
132CFLAGS.${COMPILER_TYPE}
133		Flags dependent on compiler added to CFLAGS.
134CFLAGS.${MACHINE_ARCH}
135		Architectural flags added to CFLAGS.
136CFLAGS_NO_SIMD	Add this to CFLAGS for programs that don't want any SIMD
137		instructions generated. It is setup in bsd.cpu.mk to an
138		appropriate value for the compiler and target.
139CXXFLAGS.${COMPILER_TYPE}
140		Flags dependent on compiler added to CXXFLAGS.
141CXXFLAGS.${MACHINE_ARCH}
142		Architectural flags added to CXXFLAGS.
143CXXFLAGS.${SRC}
144		Flags dependent on source file name.
145COMPILER_FEATURES
146		A list of features that the compiler supports. Zero or
147		more of:
148			c++11	Supports full C++ 11 standard.
149
150COMPILER_TYPE	Type of compiler, either clang or gcc, though other
151		values are possible. Don't assume != clang == gcc.
152
153COMPILER_VERSION
154		A numeric constant equal to:
155		     major * 10000 + minor * 100 + tiny
156		for the compiler's self-reported version.
157
158=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
159
160The include file <sys.mk> has the default rules for all makes, in the BSD
161environment or otherwise.  You probably don't want to touch this file.
162
163=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
164
165The include file <bsd.arch.inc.mk> includes other Makefiles for specific
166architectures, if they exist. It will include the first of the following
167files that it finds: Makefile.${MACHINE}, Makefile.${MACHINE_ARCH},
168Makefile.${MACHINE_CPUARCH}
169
170=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
171
172The include file <bsd.man.mk> handles installing manual pages and their
173links.
174
175It has three targets:
176
177	all-man:
178		build manual pages.
179	maninstall:
180		install the manual pages and their links.
181	manlint:
182		verify the validity of manual pages.
183
184It sets/uses the following variables:
185
186MAN		The manual pages to be installed (use a .1 - .9 suffix).
187
188MANDIR		Base path for manual installation.
189
190MANGRP		Manual group.
191
192MANMODE		Manual mode.
193
194MANOWN		Manual owner.
195
196MANSUBDIR	Subdirectory under the manual page section, i.e. "/vax"
197		or "/tahoe" for machine specific manual pages.
198
199MLINKS		List of manual page links (using a .1 - .9 suffix).  The
200		linked-to file must come first, the linked file second,
201		and there may be multiple pairs.  The files are hard-linked.
202
203The include file <bsd.man.mk> includes a file named "../Makefile.inc" if
204it exists.
205
206=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
207
208The include file <bsd.own.mk> contains the owners, groups, etc. for both
209manual pages and binaries.
210
211It has no targets.
212
213It sets/uses the following variables:
214
215BINGRP		Binary group.
216
217BINMODE		Binary mode.
218
219BINOWN		Binary owner.
220
221MANDIR		Base path for manual installation.
222
223MANGRP		Manual group.
224
225MANMODE		Manual mode.
226
227MANOWN		Manual owner.
228
229INSTALL_LINK	Command to install a hard link.
230
231INSTALL_SYMLINK	Command to install a symbolic link.
232
233INSTALL_RSYMLINK	Command to install a relative symbolic link.
234
235LINKOWN		Owner of hard links created by INSTALL_LINK.
236
237LINKGRP		Group of hard links created by INSTALL_LINK.
238
239LINKMODE	Mode of hard links created by INSTALL_LINK.
240
241SYMLINKOWN	Owner of hard links created by INSTALL_[R]SYMLINK.
242
243SYMLINKGRP	Group of hard links created by INSTALL_[R]SYMLINK.
244
245SYMLINKMODE	Mode of hard links created by INSTALL_[R]SYMLINK.
246
247This file is generally useful when building your own Makefiles so that
248they use the same default owners etc. as the rest of the tree.
249
250=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
251
252The include file <bsd.prog.mk> handles building programs from one or
253more source files, along with their manual pages.  It has a limited number
254of suffixes, consistent with the current needs of the BSD tree.
255
256It has seven targets:
257
258	all:
259		build the program and its manual page
260	clean:
261		remove the program and any object files.
262	cleandir:
263		remove all of the files removed by the target clean, as
264		well as .depend, tags, and any manual pages.
265	depend:
266		make the dependencies for the source files, and store
267		them in the file .depend.
268	install:
269		install the program and its manual pages; if the Makefile
270		does not itself define the target install, the targets
271		beforeinstall and afterinstall may also be used to cause
272		actions immediately before and after the install target
273		is executed.
274	tags:
275		create a tags file for the source files.
276
277It sets/uses the following variables:
278
279ACFLAGS		Flags to the compiler when preprocessing and
280		assembling .S files.
281
282AFLAGS		Flags to the assembler when assembling .s files.
283
284BINGRP		Binary group.
285
286BINMODE		Binary mode.
287
288BINOWN		Binary owner.
289
290CFLAGS		Flags to the compiler when creating C objects.
291
292CLEANDIRS	Additional files (CLEANFILES) and directories (CLEANDIRS) to
293CLEANFILES	remove during clean and cleandir targets.  "rm -rf" and
294		"rm -f" are used, respectively.
295
296DIRS		A list of variables referring to directories.  For example:
297
298			DIRS+=	FOO
299			FOO=	/usr/share/foo
300
301		Owner, Group, Mode and Flags are handled by FOO_OWN,
302		FOO_GRP, FOO_MODE and FOO_FLAGS, respectively.
303
304		This allows FILESDIR to be set to FOO, and the directory
305		will be created before the files are installed and the
306		dependencies will be set correctly.
307
308DPADD		Additional dependencies for the program.  Usually used for
309		libraries.  For example, to depend on the compatibility and
310		utility libraries use:
311
312			DPADD=${LIBCOMPAT} ${LIBUTIL}
313
314		There is a predefined identifier for each (non-profiled,
315		non-shared) library and object.  Library file names are
316		transformed to identifiers by removing the extension and
317		converting to upper case.
318
319		There are no special identifiers for profiled or shared
320		libraries or objects.  The identifiers for the standard
321		libraries are used in DPADD.  This works correctly iff all
322		the libraries are built at the same time.  Unfortunately,
323		it causes unnecessary relinks to shared libraries when
324		only the static libraries have changed.  Dependencies on
325		shared libraries should be only on the library version
326		numbers.
327
328FILES		A list of non-executable files.
329		The installation is controlled by the FILESNAME, FILESOWN,
330		FILESGRP, FILESMODE, FILESDIR variables that can be
331		further specialized by FILES<VAR>_<file>.
332
333LDADD		Additional loader objects.  Usually used for libraries.
334		For example, to load with the compatibility and utility
335		libraries, use:
336
337			LDADD=-lutil -lcompat
338
339LDFLAGS		Additional loader flags. Passed to the loader via CC,
340		since that's used to link programs as well, so loader
341		specific flags need to be prefixed with -Wl, to work.
342
343LIBADD		Additional libraries.  This is for base system libraries
344		and is only valid inside of the /usr/src tree.
345		Use LIBADD=name instead of LDADD=-lname.
346
347LINKS		The list of binary links; should be full pathnames, the
348		linked-to file coming first, followed by the linked
349		file.  The files are hard-linked.  For example, to link
350		/bin/test and /bin/[, use:
351
352			LINKS=	/bin/test /bin/[
353
354LINKOWN		Owner of links created with LINKS [${BINOWN}].
355
356LINKGRP		Group of links created with LINKS [${BINGRP}].
357
358LINKMODE	Mode of links created with LINKS [${BINMODE}].
359
360
361MAN		Manual pages.  If no MAN variable is defined,
362		"MAN=${PROG}.1" is assumed. See bsd.man.mk for more details.
363
364PROG		The name of the program to build.  If not supplied, nothing
365		is built.
366
367PROGNAME	The name that the above program will be installed as, if
368		different from ${PROG}.
369
370PROG_CXX	If defined, the name of the program to build.  Also
371		causes <bsd.prog.mk> to link the program with the
372		standard C++ library.  PROG_CXX overrides the value
373		of PROG if PROG is also set.
374
375PROGS		When used with <bsd.progs.mk>, allow building multiple
376PROGS_CXX	PROG and PROG_CXX in one Makefile.  To define
377		individual variables for each program the VAR.prog
378		syntax should be used.  For example:
379
380		PROGS=		foo bar
381		SRCS.foo=	foo_src.c
382		LDADD.foo=	-lutil
383		SRCS.bar=	bar_src.c
384
385		The supported variables are:
386		- BINDIR
387		- BINGRP
388		- BINMODE
389		- BINOWN
390		- CFLAGS
391		- CXXFLAGS
392		- DEBUG_FLAGS
393		- DPADD
394		- DPSRCS
395		- INTERNALPROG (no installation)
396		- LDADD
397		- LDFLAGS
398		- LIBADD
399		- LINKS
400		- MAN
401		- MLINKS
402		- NO_WERROR
403		- PROGNAME
404		- SRCS
405		- STRIP
406		- WARNS
407
408SCRIPTS		A list of interpreter scripts [file.{sh,csh,pl,awk,...}].
409		The installation is controlled by the SCRIPTSNAME, SCRIPTSOWN,
410		SCRIPTSGRP, SCRIPTSMODE, SCRIPTSDIR variables that can be
411		further specialized by SCRIPTS<VAR>_<script>.
412
413SRCS		List of source files to build the program.  If SRCS is not
414		defined, it's assumed to be ${PROG}.c or, if PROG_CXX is
415		defined, ${PROG_CXX}.cc.
416
417STRIP		The flag passed to the install program to cause the binary
418		to be stripped.  This is to be used when building your
419		own install script so that the entire system can be made
420		stripped/not-stripped using a single nob.
421
422SUBDIR		A list of subdirectories that should be built as well.
423		Each of the targets will execute the same target in the
424		subdirectories.
425
426The include file <bsd.prog.mk> includes the file named "../Makefile.inc"
427if it exists, as well as the include file <bsd.man.mk>.
428
429Some simple examples:
430
431To build foo from foo.c with a manual page foo.1, use:
432
433	PROG=	foo
434
435	.include <bsd.prog.mk>
436
437To build foo from foo.c with a manual page foo.2, add the line:
438
439	MAN=	foo.2
440
441If foo does not have a manual page at all, add the line:
442
443	MAN=
444
445If foo has multiple source files, add the line:
446
447	SRCS=	a.c b.c c.c d.c
448
449=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
450
451The include file, <bsd.snmpmod.mk>, handles building MIB modules for bsnmpd
452from one or more source files, along with their manual pages.  It has a
453limited number of suffixes, consistent with the current needs of the BSD
454tree.
455
456bsd.snmpmod.mk leverages bsd.lib.mk for building MIB modules and
457bsd.files.mk for installing MIB description and definition files.
458
459It implements the following additional targets:
460
461	smilint:
462		execute smilint on the MIBs defined by BMIBS.
463
464		The net-mgmt/libsmi package must be installed before
465		executing this target. The net-mgmt/net-snmp package
466		should be installed as well to reduce false positives
467		from smilint.
468
469It sets/uses the following variables:
470
471BMIBS		The MIB definitions to install.
472
473BMIBSDIR	The directory where the MIB definitions are installed.
474		This defaults to `${SHAREDIR}/snmp/mibs`.
475
476DEFS		The MIB description files to install.
477
478DEFSDIR		The directory where MIB description files are installed.
479		This defaults to `${SHAREDIR}/snmp/defs`.
480
481EXTRAMIBDEFS	Extra MIB description files to use as input when
482		generating ${MOD}_oid.h and ${MOD}_tree.[ch].
483
484EXTRAMIBSYMS	Extra MIB definition files used only for extracting
485		symbols.
486
487		EXTRAMIBSYMS are useful when resolving inter-module
488		dependencies and are useful with files containing only
489		enum-definitions.
490
491		See ${MOD}_oid.h for more details.
492
493LOCALBASE	The package root where smilint and the net-snmp
494		definitions can be found
495
496MOD		The bsnmpd module name.
497
498SMILINT		smilint binary to use with the smilint make target.
499
500SMILINT_FLAGS	flags to pass to smilint.
501
502SMIPATH		A colon-separated directory path where MIBs definitions
503		can be found. See "SMIPATH" in smi_config for more
504		details.
505
506XSYM		MIB names to extract symbols for. See ${MOD}_oid.h for
507		more details.
508
509It generates the following files:
510
511${MOD}_tree.c	A source file and header which programmatically describes
512${MOD}_tree.h	the MIB (type, OID name, ACCESS attributes, etc).
513
514		The files are generated via "gensnmptree -p".
515
516		See gensnmptree(1) for more details.
517
518${MOD}_oid.h	A header which programmatically describes the MIB root and
519		MIB tables.
520
521		The files are generated via "gensnmptree -e".
522
523		See gensnmptree(1) for more details.
524
525=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
526
527The include file <bsd.subdir.mk> contains the default targets for building
528subdirectories.  It has the same seven targets as <bsd.prog.mk>: all, clean,
529cleandir, depend, install, and tags.  For all of the directories listed in the
530variable SUBDIRS, the specified directory will be visited and the target made.
531There is also a default target which allows the command "make subdir" where
532subdir is any directory listed in the variable SUBDIRS.
533
534=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
535
536The include file <bsd.lib.mk> has support for building libraries.  It has the
537same seven targets as <bsd.prog.mk>: all, clean, cleandir, depend, install, and
538tags.  It has a limited number of suffixes, consistent with the current needs of
539the BSD tree.
540
541It sets/uses the following variables:
542
543LDADD		Additional loader objects.
544
545LIB		The name of the library to build.  Both a shared and static
546		library will be built.  NO_PIC can be set to only build a
547		static library.
548
549LIBADD		Additional libraries.  This is for base system libraries
550		and is only valid inside of the /usr/src tree.
551		Use LIBADD=name instead of LDADD=-lname.
552
553LIBDIR		Target directory for libraries.
554
555LIBGRP		Library group.
556
557LIBMODE		Library mode.
558
559LIBOWN		Library owner.
560
561LIBRARIES_ONLY	Do not build or install files other than the library.
562
563LIB_CXX		The name of the library to build. It also causes
564		<bsd.lib.mk> to link the library with the
565		standard C++ library.  LIB_CXX overrides the value
566		of LIB if LIB is also set.  Both a shared and static library
567		will be built.  NO_PIC can be set to only build a static
568		library.
569
570LINKS		The list of binary links; should be full pathnames, the
571		linked-to file coming first, followed by the linked
572		file.  The files are hard-linked.  For example, to link
573		/bin/test and /bin/[, use:
574
575			LINKS=	/bin/test /bin/[
576
577LINKOWN		Owner of links created with LINKS [${LIBOWN}].
578
579LINKGRP		Group of links created with LINKS [${LIBGRP}].
580
581LINKMODE	Mode of links created with LINKS [${LIBMODE}].
582
583LINTLIBDIR	Target directory for lint libraries.
584
585MAN		The manual pages to be installed. See bsd.man.mk for more
586		details.
587
588SHLIB		Like LIB but only builds a shared library.
589
590SHLIB_CXX	Like LIB_CXX but only builds a shared library.
591
592SHLIB_LDSCRIPT	Template file to generate shared library linker script.
593		If not defined, a simple symlink is created to the real
594		shared object.
595
596SRCS		List of source files to build the library.  Suffix types
597		.s, .c, and .f are supported.  Note, .s files are preferred
598		to .c files of the same name.  (This is not the default for
599		versions of make.)
600
601The include file <bsd.lib.mk> includes the file named "../Makefile.inc"
602if it exists, as well as the include file <bsd.man.mk>.
603
604It has rules for building profiled objects; profiled libraries are
605built by default.
606
607Libraries are ranlib'd before installation.
608
609=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
610
611The include file <bsd.test.mk> handles building one or more test programs
612intended to be used in the FreeBSD Test Suite under /usr/tests/.
613
614It has seven targets:
615
616	all:
617		build the test programs.
618	check:
619		runs the test programs with kyua test.
620
621		The beforecheck and aftercheck targets will be invoked, if
622		defined, to execute commands before and after the realcheck
623		target has been executed, respectively.
624
625		The devel/kyua package must be installed before invoking this
626		target.
627	clean:
628		remove the test programs and any object files.
629	cleandir:
630		remove all of the files removed by the target clean, as
631		well as .depend and tags.
632	depend:
633		make the dependencies for the source files, and store
634		them in the file .depend.
635	install:
636                install the test programs and their data files; if the
637                Makefile does not itself define the target install, the
638                targets beforeinstall and afterinstall may also be used
639                to cause actions immediately before and after the
640                install target is executed.
641	tags:
642		create a tags file for the source files.
643
644It sets/uses the following variables, among many others:
645
646ATF_TESTS_C	The names of the ATF C test programs to build.
647
648ATF_TESTS_CXX	The names of the ATF C++ test programs to build.
649
650ATF_TESTS_SH	The names of the ATF sh test programs to build.
651
652KYUAFILE	If 'auto' (the default), generate a Kyuafile out of the
653		test programs defined in the Makefile.  If 'yes', then a
654		manually-crafted Kyuafile must be supplied with the
655		sources.  If 'no', no Kyuafile is installed (useful for
656		subdirectories providing helper programs or data files
657		only).
658
659LOCALBASE	The --prefix for the kyua package.
660
661		The value of LOCALBASE defaults to /usr/local .
662
663NOT_FOR_TEST_SUITE
664		If defined, none of the built test programs get
665		installed under /usr/tests/ and no Kyuafile is
666		automatically generated.  Should not be used within the
667		FreeBSD source tree but is provided for the benefit of
668		third-parties.
669
670PLAIN_TESTS_C	The names of the plain (legacy) programs to build.
671
672PLAIN_TESTS_CXX	The names of the plain (legacy) test programs to build.
673
674PLAIN_TESTS_SH	The names of the plain (legacy) test programs to build.
675
676TAP_PERL_INTERPRETER
677		Path to the Perl interpreter to be used for
678		TAP-compliant test programs that are written in Perl.
679		Refer to TAP_TESTS_PERL for details.
680
681TAP_TESTS_C	The names of the TAP-compliant C test programs to build.
682
683TAP_TESTS_CXX	The names of the TAP-compliant C++ test programs to
684		build.
685
686TAP_TESTS_PERL	The names of the TAP-compliant Perl test programs to
687		build.  The corresponding source files should end with
688		the .pl extension; the test program is marked as
689		requiring Perl; and TAP_PERL_INTERPRETER is used in the
690		built scripts as the interpreter of choice.
691
692TAP_TESTS_SH	The names of the TAP-compliant sh test programs to
693		build.
694
695TESTSBASE	Installation prefix for tests. Defaults to /usr/tests
696
697TESTSDIR	Path to the installed tests.  Must be a subdirectory of
698		TESTSBASE and the subpath should match the relative
699		location of the tests within the src tree.
700
701		The value of TESTSDIR defaults to
702		${TESTSBASE}/${RELDIR:H} , e.g. /usr/tests/bin/ls when
703		included from bin/ls/tests .
704
705TESTS_SUBDIRS	List of subdirectories containing tests into which to
706		recurse.  Differs from SUBDIR in that these directories
707		get registered into the automatically-generated
708		Kyuafile (if any).
709
710The actual building of the test programs is performed by <bsd.prog.mk>.
711Please see the documentation above for this other file for additional
712details on the behavior of <bsd.test.mk>.
713