1 MAKE(1) NetBSD General Commands Manual MAKE(1)
4 b
\bbm
\bma
\bak
\bke
\be -- maintain program dependencies
6 S
\bSY
\bYN
\bNO
\bOP
\bPS
\bSI
\bIS
\bS
7 b
\bbm
\bma
\bak
\bke
\be [-
\b-B
\bBe
\bei
\bik
\bkN
\bNn
\bnq
\bqr
\brs
\bst
\btW
\bWX
\bX] [-
\b-C
\bC _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by] [-
\b-D
\bD _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be] [-
\b-d
\bd _
\bf_
\bl_
\ba_
\bg_
\bs]
8 [-
\b-f
\bf _
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be] [-
\b-I
\bI _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by] [-
\b-J
\bJ _
\bp_
\br_
\bi_
\bv_
\ba_
\bt_
\be] [-
\b-j
\bj _
\bm_
\ba_
\bx_
\b__
\bj_
\bo_
\bb_
\bs]
9 [-
\b-m
\bm _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by] [-
\b-T
\bT _
\bf_
\bi_
\bl_
\be] [-
\b-V
\bV _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be] [_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be_
\b=_
\bv_
\ba_
\bl_
\bu_
\be]
10 [_
\bt_
\ba_
\br_
\bg_
\be_
\bt _
\b._
\b._
\b.]
12 D
\bDE
\bES
\bSC
\bCR
\bRI
\bIP
\bPT
\bTI
\bIO
\bON
\bN
13 b
\bbm
\bma
\bak
\bke
\be is a program designed to simplify the maintenance of other pro-
14 grams. Its input is a list of specifications as to the files upon which
15 programs and other files depend. If no -
\b-f
\bf _
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be makefile option is
16 given, b
\bbm
\bma
\bak
\bke
\be will try to open `_
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be' then `_
\bM_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be' in order to find
17 the specifications. If the file `_
\b._
\bd_
\be_
\bp_
\be_
\bn_
\bd' exists, it is read (see
20 This manual page is intended as a reference document only. For a more
21 thorough description of b
\bbm
\bma
\bak
\bke
\be and makefiles, please refer to _
\bM_
\ba_
\bk_
\be _
\b- _
\bA
22 _
\bT_
\bu_
\bt_
\bo_
\br_
\bi_
\ba_
\bl.
24 b
\bbm
\bma
\bak
\bke
\be will prepend the contents of the _
\bM_
\bA_
\bK_
\bE_
\bF_
\bL_
\bA_
\bG_
\bS environment variable to
25 the command line arguments before parsing them.
27 The options are as follows:
29 -
\b-B
\bB Try to be backwards compatible by executing a single shell per
30 command and by executing the commands to make the sources of a
31 dependency line in sequence.
33 -
\b-C
\bC _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by
34 Change to _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by before reading the makefiles or doing any-
35 thing else. If multiple -
\b-C
\bC options are specified, each is inter-
36 preted relative to the previous one: -
\b-C
\bC _
\b/ -
\b-C
\bC _
\be_
\bt_
\bc is equivalent to
37 -
\b-C
\bC _
\b/_
\be_
\bt_
\bc.
39 -
\b-D
\bD _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be
40 Define _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be to be 1, in the global context.
42 -
\b-d
\bd _
\b[_
\b-_
\b]_
\bf_
\bl_
\ba_
\bg_
\bs
43 Turn on debugging, and specify which portions of b
\bbm
\bma
\bak
\bke
\be are to
44 print debugging information. Unless the flags are preceded by
45 `-' they are added to the _
\bM_
\bA_
\bK_
\bE_
\bF_
\bL_
\bA_
\bG_
\bS environment variable and will
46 be processed by any child make processes. By default, debugging
47 information is printed to standard error, but this can be changed
48 using the _
\bF debugging flag. The debugging output is always
49 unbuffered; in addition, if debugging is enabled but debugging
50 output is not directed to standard output, then the standard out-
51 put is line buffered. _
\bF_
\bl_
\ba_
\bg_
\bs is one or more of the following:
53 _
\bA Print all possible debugging information; equivalent to
54 specifying all of the debugging flags.
56 _
\ba Print debugging information about archive searching and
59 _
\bC Print debugging information about current working direc-
62 _
\bc Print debugging information about conditional evaluation.
64 _
\bd Print debugging information about directory searching and
67 _
\be Print debugging information about failed commands and
70 _
\bF[+
\b+]_
\bf_
\bi_
\bl_
\be_
\bn_
\ba_
\bm_
\be
71 Specify where debugging output is written. This must be
72 the last flag, because it consumes the remainder of the
73 argument. If the character immediately after the `F'
74 flag is `+', then the file will be opened in append mode;
75 otherwise the file will be overwritten. If the file name
76 is `stdout' or `stderr' then debugging output will be
77 written to the standard output or standard error output
78 file descriptors respectively (and the `+' option has no
79 effect). Otherwise, the output will be written to the
80 named file. If the file name ends `.%d' then the `%d' is
83 _
\bf Print debugging information about loop evaluation.
85 _
\bg_
\b1 Print the input graph before making anything.
87 _
\bg_
\b2 Print the input graph after making everything, or before
90 _
\bg_
\b3 Print the input graph before exiting on error.
92 _
\bj Print debugging information about running multiple
95 _
\bl Print commands in Makefiles regardless of whether or not
96 they are prefixed by `@' or other "quiet" flags. Also
97 known as "loud" behavior.
99 _
\bm Print debugging information about making targets, includ-
100 ing modification dates.
102 _
\bn Don't delete the temporary command scripts created when
103 running commands. These temporary scripts are created in
104 the directory referred to by the TMPDIR environment vari-
105 able, or in _
\b/_
\bt_
\bm_
\bp if TMPDIR is unset or set to the empty
106 string. The temporary scripts are created by mkstemp(3),
107 and have names of the form _
\bm_
\ba_
\bk_
\be_
\bX_
\bX_
\bX_
\bX_
\bX_
\bX. _
\bN_
\bO_
\bT_
\bE: This can
108 create many files in TMPDIR or _
\b/_
\bt_
\bm_
\bp, so use with care.
110 _
\bp Print debugging information about makefile parsing.
112 _
\bs Print debugging information about suffix-transformation
115 _
\bt Print debugging information about target list mainte-
118 _
\bv Print debugging information about variable assignment.
120 _
\bx Run shell commands with -
\b-x
\bx so the actual commands are
121 printed as they are executed.
123 -
\b-e
\be Specify that environment variables override macro assignments
126 -
\b-f
\bf _
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be
127 Specify a makefile to read instead of the default `_
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be'. If
128 _
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be is `-
\b-', standard input is read. Multiple makefiles may
129 be specified, and are read in the order specified.
131 -
\b-I
\bI _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by
132 Specify a directory in which to search for makefiles and included
133 makefiles. The system makefile directory (or directories, see
134 the -
\b-m
\bm option) is automatically included as part of this list.
136 -
\b-i
\bi Ignore non-zero exit of shell commands in the makefile. Equiva-
137 lent to specifying `-
\b-' before each command line in the makefile.
139 -
\b-J
\bJ _
\bp_
\br_
\bi_
\bv_
\ba_
\bt_
\be
140 This option should _
\bn_
\bo_
\bt be specified by the user.
142 When the _
\bj option is in use in a recursive build, this option is
143 passed by a make to child makes to allow all the make processes
144 in the build to cooperate to avoid overloading the system.
146 -
\b-j
\bj _
\bm_
\ba_
\bx_
\b__
\bj_
\bo_
\bb_
\bs
147 Specify the maximum number of jobs that b
\bbm
\bma
\bak
\bke
\be may have running at
148 any one time. Turns compatibility mode off, unless the _
\bB flag is
149 also specified. When compatibility mode is off, all commands
150 associated with a target are executed in a single shell invoca-
151 tion as opposed to the traditional one shell invocation per line.
152 This can break traditional scripts which change directories on
153 each command invocation and then expect to start with a fresh
154 environment on the next line. It is more efficient to correct
155 the scripts rather than turn backwards compatibility on.
157 -
\b-k
\bk Continue processing after errors are encountered, but only on
158 those targets that do not depend on the target whose creation
161 -
\b-m
\bm _
\bd_
\bi_
\br_
\be_
\bc_
\bt_
\bo_
\br_
\by
162 Specify a directory in which to search for sys.mk and makefiles
163 included via the <_
\bf_
\bi_
\bl_
\be>-style include statement. The -
\b-m
\bm option
164 can be used multiple times to form a search path. This path will
165 override the default system include path: /usr/share/mk. Fur-
166 thermore the system include path will be appended to the search
167 path used for "_
\bf_
\bi_
\bl_
\be"-style include statements (see the -
\b-I
\bI
170 If a file or directory name in the -
\b-m
\bm argument (or the
171 MAKESYSPATH environment variable) starts with the string ".../"
172 then b
\bbm
\bma
\bak
\bke
\be will search for the specified file or directory named
173 in the remaining part of the argument string. The search starts
174 with the current directory of the Makefile and then works upward
175 towards the root of the filesystem. If the search is successful,
176 then the resulting directory replaces the ".../" specification in
177 the -
\b-m
\bm argument. If used, this feature allows b
\bbm
\bma
\bak
\bke
\be to easily
178 search in the current source tree for customized sys.mk files
179 (e.g., by using ".../mk/sys.mk" as an argument).
181 -
\b-n
\bn Display the commands that would have been executed, but do not
182 actually execute them unless the target depends on the .MAKE spe-
183 cial source (see below).
185 -
\b-N
\bN Display the commands which would have been executed, but do not
186 actually execute any of them; useful for debugging top-level
187 makefiles without descending into subdirectories.
189 -
\b-q
\bq Do not execute any commands, but exit 0 if the specified targets
190 are up-to-date and 1, otherwise.
192 -
\b-r
\br Do not use the built-in rules specified in the system makefile.
194 -
\b-s
\bs Do not echo any commands as they are executed. Equivalent to
195 specifying `@
\b@' before each command line in the makefile.
197 -
\b-T
\bT _
\bt_
\br_
\ba_
\bc_
\be_
\bf_
\bi_
\bl_
\be
198 When used with the -
\b-j
\bj flag, append a trace record to _
\bt_
\br_
\ba_
\bc_
\be_
\bf_
\bi_
\bl_
\be
199 for each job started and completed.
201 -
\b-t
\bt Rather than re-building a target as specified in the makefile,
202 create it or update its modification time to make it appear up-
205 -
\b-V
\bV _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be
206 Print b
\bbm
\bma
\bak
\bke
\be's idea of the value of _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be, in the global con-
207 text. Do not build any targets. Multiple instances of this
208 option may be specified; the variables will be printed one per
209 line, with a blank line for each null or undefined variable. If
210 _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be contains a `$' then the value will be expanded before
213 -
\b-W
\bW Treat any warnings during makefile parsing as errors.
215 -
\b-X
\bX Don't export variables passed on the command line to the environ-
216 ment individually. Variables passed on the command line are
217 still exported via the _
\bM_
\bA_
\bK_
\bE_
\bF_
\bL_
\bA_
\bG_
\bS environment variable. This
218 option may be useful on systems which have a small limit on the
219 size of command arguments.
221 _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be_
\b=_
\bv_
\ba_
\bl_
\bu_
\be
222 Set the value of the variable _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be to _
\bv_
\ba_
\bl_
\bu_
\be. Normally, all
223 values passed on the command line are also exported to sub-makes
224 in the environment. The -
\b-X
\bX flag disables this behavior. Vari-
225 able assignments should follow options for POSIX compatibility
226 but no ordering is enforced.
228 There are seven different types of lines in a makefile: file dependency
229 specifications, shell commands, variable assignments, include statements,
230 conditional directives, for loops, and comments.
232 In general, lines may be continued from one line to the next by ending
233 them with a backslash (`\'). The trailing newline character and initial
234 whitespace on the following line are compressed into a single space.
236 F
\bFI
\bIL
\bLE
\bE D
\bDE
\bEP
\bPE
\bEN
\bND
\bDE
\bEN
\bNC
\bCY
\bY S
\bSP
\bPE
\bEC
\bCI
\bIF
\bFI
\bIC
\bCA
\bAT
\bTI
\bIO
\bON
\bNS
\bS
237 Dependency lines consist of one or more targets, an operator, and zero or
238 more sources. This creates a relationship where the targets ``depend''
239 on the sources and are usually created from them. The exact relationship
240 between the target and the source is determined by the operator that sep-
241 arates them. The three operators are as follows:
243 :
\b: A target is considered out-of-date if its modification time is less
244 than those of any of its sources. Sources for a target accumulate
245 over dependency lines when this operator is used. The target is
246 removed if b
\bbm
\bma
\bak
\bke
\be is interrupted.
248 !
\b! Targets are always re-created, but not until all sources have been
249 examined and re-created as necessary. Sources for a target accumu-
250 late over dependency lines when this operator is used. The target
251 is removed if b
\bbm
\bma
\bak
\bke
\be is interrupted.
253 :
\b::
\b: If no sources are specified, the target is always re-created. Oth-
254 erwise, a target is considered out-of-date if any of its sources
255 has been modified more recently than the target. Sources for a
256 target do not accumulate over dependency lines when this operator
257 is used. The target will not be removed if b
\bbm
\bma
\bak
\bke
\be is interrupted.
259 Targets and sources may contain the shell wildcard values `?', `*', `[]',
260 and `{}'. The values `?', `*', and `[]' may only be used as part of the
261 final component of the target or source, and must be used to describe
262 existing files. The value `{}' need not necessarily be used to describe
263 existing files. Expansion is in directory order, not alphabetically as
266 S
\bSH
\bHE
\bEL
\bLL
\bL C
\bCO
\bOM
\bMM
\bMA
\bAN
\bND
\bDS
\bS
267 Each target may have associated with it a series of shell commands, nor-
268 mally used to create the target. Each of the commands in this script
269 _
\bm_
\bu_
\bs_
\bt be preceded by a tab. While any target may appear on a dependency
270 line, only one of these dependencies may be followed by a creation
271 script, unless the `:
\b::
\b:' operator is used.
273 If the first characters of the command line are any combination of `@
\b@',
274 `+
\b+', or `-
\b-', the command is treated specially. A `@
\b@' causes the command
275 not to be echoed before it is executed. A `+
\b+' causes the command to be
276 executed even when -
\b-n
\bn is given. This is similar to the effect of the
277 .MAKE special source, except that the effect can be limited to a single
278 line of a script. A `-
\b-' causes any non-zero exit status of the command
281 V
\bVA
\bAR
\bRI
\bIA
\bAB
\bBL
\bLE
\bE A
\bAS
\bSS
\bSI
\bIG
\bGN
\bNM
\bME
\bEN
\bNT
\bTS
\bS
282 Variables in make are much like variables in the shell, and, by tradi-
283 tion, consist of all upper-case letters.
285 V
\bVa
\bar
\bri
\bia
\bab
\bbl
\ble
\be a
\bas
\bss
\bsi
\big
\bgn
\bnm
\bme
\ben
\bnt
\bt m
\bmo
\bod
\bdi
\bif
\bfi
\bie
\ber
\brs
\bs
286 The five operators that can be used to assign values to variables are as
289 =
\b= Assign the value to the variable. Any previous value is overrid-
292 +
\b+=
\b= Append the value to the current value of the variable.
294 ?
\b?=
\b= Assign the value to the variable if it is not already defined.
296 :
\b:=
\b= Assign with expansion, i.e. expand the value before assigning it
297 to the variable. Normally, expansion is not done until the vari-
298 able is referenced. _
\bN_
\bO_
\bT_
\bE: References to undefined variables are
299 _
\bn_
\bo_
\bt expanded. This can cause problems when variable modifiers
302 !
\b!=
\b= Expand the value and pass it to the shell for execution and
303 assign the result to the variable. Any newlines in the result
304 are replaced with spaces.
306 Any white-space before the assigned _
\bv_
\ba_
\bl_
\bu_
\be is removed; if the value is
307 being appended, a single space is inserted between the previous contents
308 of the variable and the appended value.
310 Variables are expanded by surrounding the variable name with either curly
311 braces (`{}') or parentheses (`()') and preceding it with a dollar sign
312 (`$'). If the variable name contains only a single letter, the surround-
313 ing braces or parentheses are not required. This shorter form is not
316 If the variable name contains a dollar, then the name itself is expanded
317 first. This allows almost arbitrary variable names, however names con-
318 taining dollar, braces, parenthesis, or whitespace are really best
321 If the result of expanding a variable contains a dollar sign (`$') the
322 string is expanded again.
324 Variable substitution occurs at three distinct times, depending on where
325 the variable is being used.
327 1. Variables in dependency lines are expanded as the line is read.
329 2. Variables in shell commands are expanded when the shell command is
332 3. ``.for'' loop index variables are expanded on each loop iteration.
333 Note that other variables are not expanded inside loops so the fol-
352 Because while ${a} contains ``1 2 3'' after the loop is executed,
353 ${b} contains ``${j} ${j} ${j}'' which expands to ``3 3 3'' since
354 after the loop completes ${j} contains ``3''.
356 V
\bVa
\bar
\bri
\bia
\bab
\bbl
\ble
\be c
\bcl
\bla
\bas
\bss
\bse
\bes
\bs
357 The four different classes of variables (in order of increasing prece-
360 Environment variables
361 Variables defined as part of b
\bbm
\bma
\bak
\bke
\be's environment.
364 Variables defined in the makefile or in included makefiles.
366 Command line variables
367 Variables defined as part of the command line.
370 Variables that are defined specific to a certain target. The
371 seven local variables are as follows:
373 _
\b._
\bA_
\bL_
\bL_
\bS_
\bR_
\bC The list of all sources for this target; also known as
376 _
\b._
\bA_
\bR_
\bC_
\bH_
\bI_
\bV_
\bE The name of the archive file.
378 _
\b._
\bI_
\bM_
\bP_
\bS_
\bR_
\bC In suffix-transformation rules, the name/path of the
379 source from which the target is to be transformed (the
380 ``implied'' source); also known as `_
\b<'. It is not
381 defined in explicit rules.
383 _
\b._
\bM_
\bE_
\bM_
\bB_
\bE_
\bR The name of the archive member.
385 _
\b._
\bO_
\bO_
\bD_
\bA_
\bT_
\bE The list of sources for this target that were deemed
386 out-of-date; also known as `_
\b?'.
388 _
\b._
\bP_
\bR_
\bE_
\bF_
\bI_
\bX The file prefix of the target, containing only the file
389 portion, no suffix or preceding directory components;
390 also known as `_
\b*'.
392 _
\b._
\bT_
\bA_
\bR_
\bG_
\bE_
\bT The name of the target; also known as `_
\b@'.
394 The shorter forms `_
\b@', `_
\b?', `_
\b<', `_
\b>', and `_
\b*' are permitted for
395 backward compatibility with historical makefiles and are not rec-
396 ommended. The six variables `_
\b@_
\bF', `_
\b@_
\bD', `_
\b<_
\bF', `_
\b<_
\bD', `_
\b*_
\bF', and
397 `_
\b*_
\bD' are permitted for compatibility with AT&T System V UNIX
398 makefiles and are not recommended.
400 Four of the local variables may be used in sources on dependency
401 lines because they expand to the proper value for each target on
402 the line. These variables are `_
\b._
\bT_
\bA_
\bR_
\bG_
\bE_
\bT', `_
\b._
\bP_
\bR_
\bE_
\bF_
\bI_
\bX', `_
\b._
\bA_
\bR_
\bC_
\bH_
\bI_
\bV_
\bE',
403 and `_
\b._
\bM_
\bE_
\bM_
\bB_
\bE_
\bR'.
405 A
\bAd
\bdd
\bdi
\bit
\bti
\bio
\bon
\bna
\bal
\bl b
\bbu
\bui
\bil
\blt
\bt-
\b-i
\bin
\bn v
\bva
\bar
\bri
\bia
\bab
\bbl
\ble
\bes
\bs
406 In addition, b
\bbm
\bma
\bak
\bke
\be sets or knows about the following variables:
408 _
\b$ A single dollar sign `$', i.e. `$$' expands to a single
411 _
\b._
\bA_
\bL_
\bL_
\bT_
\bA_
\bR_
\bG_
\bE_
\bT_
\bS The list of all targets encountered in the Makefile. If
412 evaluated during Makefile parsing, lists only those tar-
413 gets encountered thus far.
415 _
\b._
\bC_
\bU_
\bR_
\bD_
\bI_
\bR A path to the directory where b
\bbm
\bma
\bak
\bke
\be was executed. Refer
416 to the description of `PWD' for more details.
418 MAKE The name that b
\bbm
\bma
\bak
\bke
\be was executed with (_
\ba_
\br_
\bg_
\bv_
\b[_
\b0_
\b]). For
419 compatibility b
\bbm
\bma
\bak
\bke
\be also sets _
\b._
\bM_
\bA_
\bK_
\bE with the same value.
420 The preferred variable to use is the environment variable
421 MAKE because it is more compatible with other versions of
422 b
\bbm
\bma
\bak
\bke
\be and cannot be confused with the special target with
425 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bD_
\bE_
\bP_
\bE_
\bN_
\bD_
\bF_
\bI_
\bL_
\bE
426 Names the makefile (default `_
\b._
\bd_
\be_
\bp_
\be_
\bn_
\bd') from which gener-
427 ated dependencies are read.
429 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bE_
\bX_
\bP_
\bO_
\bR_
\bT_
\bE_
\bD The list of variables exported by b
\bbm
\bma
\bak
\bke
\be.
431 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bJ_
\bO_
\bB_
\bS The argument to the -
\b-j
\bj option.
433 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bJ_
\bO_
\bB_
\b._
\bP_
\bR_
\bE_
\bF_
\bI_
\bX
434 If b
\bbm
\bma
\bak
\bke
\be is run with _
\bj then output for each target is
435 prefixed with a token `--- target ---' the first part of
436 which can be controlled via _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bJ_
\bO_
\bB_
\b._
\bP_
\bR_
\bE_
\bF_
\bI_
\bX.
438 .MAKE.JOB.PREFIX=${.newline}---${.MAKE:T}[${.MAKE.PID}]
439 would produce tokens like `---make[1234] target ---' mak-
440 ing it easier to track the degree of parallelism being
443 MAKEFLAGS The environment variable `MAKEFLAGS' may contain anything
444 that may be specified on b
\bbm
\bma
\bak
\bke
\be's command line. Anything
445 specified on b
\bbm
\bma
\bak
\bke
\be's command line is appended to the
446 `MAKEFLAGS' variable which is then entered into the envi-
447 ronment for all programs which b
\bbm
\bma
\bak
\bke
\be executes.
449 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bL_
\bE_
\bV_
\bE_
\bL The recursion depth of b
\bbm
\bma
\bak
\bke
\be. The initial instance of
450 b
\bbm
\bma
\bak
\bke
\be will be 0, and an incremented value is put into the
451 environment to be seen by the next generation. This
452 allows tests like: .if ${.MAKE.LEVEL} == 0 to protect
453 things which should only be evaluated in the initial
454 instance of b
\bbm
\bma
\bak
\bke
\be.
456 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bM_
\bA_
\bK_
\bE_
\bF_
\bI_
\bL_
\bE_
\b__
\bP_
\bR_
\bE_
\bF_
\bE_
\bR_
\bE_
\bN_
\bC_
\bE
457 The ordered list of makefile names (default `_
\bm_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be',
458 `_
\bM_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be') that b
\bbm
\bma
\bak
\bke
\be will look for.
460 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bM_
\bA_
\bK_
\bE_
\bF_
\bI_
\bL_
\bE_
\bS
461 The list of makefiles read by b
\bbm
\bma
\bak
\bke
\be, which is useful for
462 tracking dependencies. Each makefile is recorded only
463 once, regardless of the number of times read.
465 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bM_
\bO_
\bD_
\bE Processed after reading all makefiles. Can affect the
466 mode that b
\bbm
\bma
\bak
\bke
\be runs in. Currently just `_
\bc_
\bo_
\bm_
\bp_
\ba_
\bt' mode.
468 _
\b._
\bM_
\bA_
\bK_
\bE_
\bO_
\bV_
\bE_
\bR_
\bR_
\bI_
\bD_
\bE_
\bS This variable is used to record the names of variables
469 assigned to on the command line, so that they may be
470 exported as part of `MAKEFLAGS'. This behaviour can be
471 disabled by assigning an empty value to `_
\b._
\bM_
\bA_
\bK_
\bE_
\bO_
\bV_
\bE_
\bR_
\bR_
\bI_
\bD_
\bE_
\bS'
472 within a makefile. Extra variables can be exported from
473 a makefile by appending their names to `_
\b._
\bM_
\bA_
\bK_
\bE_
\bO_
\bV_
\bE_
\bR_
\bR_
\bI_
\bD_
\bE_
\bS'.
474 `MAKEFLAGS' is re-exported whenever `_
\b._
\bM_
\bA_
\bK_
\bE_
\bO_
\bV_
\bE_
\bR_
\bR_
\bI_
\bD_
\bE_
\bS' is
477 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bP_
\bI_
\bD The process-id of b
\bbm
\bma
\bak
\bke
\be.
479 _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bP_
\bP_
\bI_
\bD The parent process-id of b
\bbm
\bma
\bak
\bke
\be.
481 _
\bM_
\bA_
\bK_
\bE_
\b__
\bP_
\bR_
\bI_
\bN_
\bT_
\b__
\bV_
\bA_
\bR_
\b__
\bO_
\bN_
\b__
\bE_
\bR_
\bR_
\bO_
\bR
482 When b
\bbm
\bma
\bak
\bke
\be stops due to an error, it prints its name and
483 the value of `_
\b._
\bC_
\bU_
\bR_
\bD_
\bI_
\bR' as well as the value of any vari-
484 ables named in `_
\bM_
\bA_
\bK_
\bE_
\b__
\bP_
\bR_
\bI_
\bN_
\bT_
\b__
\bV_
\bA_
\bR_
\b__
\bO_
\bN_
\b__
\bE_
\bR_
\bR_
\bO_
\bR'.
486 _
\b._
\bn_
\be_
\bw_
\bl_
\bi_
\bn_
\be This variable is simply assigned a newline character as
487 its value. This allows expansions using the :
\b:@
\b@ modifier
488 to put a newline between iterations of the loop rather
489 than a space. For example, the printing of
490 `_
\bM_
\bA_
\bK_
\bE_
\b__
\bP_
\bR_
\bI_
\bN_
\bT_
\b__
\bV_
\bA_
\bR_
\b__
\bO_
\bN_
\b__
\bE_
\bR_
\bR_
\bO_
\bR' could be done as
491 ${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'${.newline}@}.
493 _
\b._
\bO_
\bB_
\bJ_
\bD_
\bI_
\bR A path to the directory where the targets are built. Its
494 value is determined by trying to chdir(2) to the follow-
495 ing directories in order and using the first match:
497 1. ${MAKEOBJDIRPREFIX}${.CURDIR}
499 (Only if `MAKEOBJDIRPREFIX' is set in the environ-
500 ment or on the command line.)
504 (Only if `MAKEOBJDIR' is set in the environment or
505 on the command line.)
507 3. ${.CURDIR}_
\b/_
\bo_
\bb_
\bj_
\b.${MACHINE}
509 4. ${.CURDIR}_
\b/_
\bo_
\bb_
\bj
511 5. _
\b/_
\bu_
\bs_
\br_
\b/_
\bo_
\bb_
\bj_
\b/${.CURDIR}
515 Variable expansion is performed on the value before it's
516 used, so expressions such as
517 ${.CURDIR:S,^/usr/src,/var/obj,}
518 may be used. This is especially useful with
521 `_
\b._
\bO_
\bB_
\bJ_
\bD_
\bI_
\bR' may be modified in the makefile as a global
522 variable. In all cases, b
\bbm
\bma
\bak
\bke
\be will chdir(2) to `_
\b._
\bO_
\bB_
\bJ_
\bD_
\bI_
\bR'
523 and set `PWD' to that directory before executing any tar-
526 _
\b._
\bP_
\bA_
\bR_
\bS_
\bE_
\bD_
\bI_
\bR A path to the directory of the current `_
\bM_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be' being
529 _
\b._
\bP_
\bA_
\bR_
\bS_
\bE_
\bF_
\bI_
\bL_
\bE The basename of the current `_
\bM_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be' being parsed.
530 This variable and `_
\b._
\bP_
\bA_
\bR_
\bS_
\bE_
\bD_
\bI_
\bR' are both set only while the
531 `_
\bM_
\ba_
\bk_
\be_
\bf_
\bi_
\bl_
\be_
\bs' are being parsed.
533 _
\b._
\bP_
\bA_
\bT_
\bH A variable that represents the list of directories that
534 b
\bbm
\bma
\bak
\bke
\be will search for files. The search list should be
535 updated using the target `_
\b._
\bP_
\bA_
\bT_
\bH' rather than the vari-
538 PWD Alternate path to the current directory. b
\bbm
\bma
\bak
\bke
\be normally
539 sets `_
\b._
\bC_
\bU_
\bR_
\bD_
\bI_
\bR' to the canonical path given by getcwd(3).
540 However, if the environment variable `PWD' is set and
541 gives a path to the current directory, then b
\bbm
\bma
\bak
\bke
\be sets
542 `_
\b._
\bC_
\bU_
\bR_
\bD_
\bI_
\bR' to the value of `PWD' instead. This behaviour
543 is disabled if `MAKEOBJDIRPREFIX' is set or `MAKEOBJDIR'
544 contains a variable transform. `PWD' is set to the value
545 of `_
\b._
\bO_
\bB_
\bJ_
\bD_
\bI_
\bR' for all programs which b
\bbm
\bma
\bak
\bke
\be executes.
547 .TARGETS The list of targets explicitly specified on the command
550 VPATH Colon-separated (``:'') lists of directories that b
\bbm
\bma
\bak
\bke
\be
551 will search for files. The variable is supported for
552 compatibility with old make programs only, use `_
\b._
\bP_
\bA_
\bT_
\bH'
555 V
\bVa
\bar
\bri
\bia
\bab
\bbl
\ble
\be m
\bmo
\bod
\bdi
\bif
\bfi
\bie
\ber
\brs
\bs
556 Variable expansion may be modified to select or modify each word of the
557 variable (where a ``word'' is white-space delimited sequence of charac-
558 ters). The general format of a variable expansion is as follows:
560 ${variable[:modifier[:...]]}
562 Each modifier begins with a colon, which may be escaped with a backslash
565 A set of modifiers can be specified via a variable, as follows:
567 modifier_variable=modifier[:...]
568 ${variable:${modifier_variable}[:...]}
570 In this case the first modifier in the modifier_variable does not start
571 with a colon, since that must appear in the referencing variable. If any
572 of the modifiers in the modifier_variable contain a dollar sign (`$'),
573 these must be doubled to avoid early expansion.
575 The supported modifiers are:
577 :
\b:E
\bE Replaces each word in the variable with its suffix.
579 :
\b:H
\bH Replaces each word in the variable with everything but the last com-
582 :
\b:M
\bM_
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn
583 Select only those words that match _
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn. The standard shell
584 wildcard characters (`*', `?', and `[]') may be used. The wildcard
585 characters may be escaped with a backslash (`\').
587 :
\b:N
\bN_
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn
588 This is identical to `:
\b:M
\bM', but selects all words which do not match
589 _
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn.
591 :
\b:O
\bO Order every word in variable alphabetically. To sort words in
592 reverse order use the `:
\b:O
\bO:
\b:[
\b[-
\b-1
\b1.
\b..
\b.1
\b1]
\b]' combination of modifiers.
594 :
\b:O
\bOx
\bx Randomize words in variable. The results will be different each
595 time you are referring to the modified variable; use the assignment
596 with expansion (`:
\b:=
\b=') to prevent such behaviour. For example,
598 LIST= uno due tre quattro
599 RANDOM_LIST= ${LIST:Ox}
600 STATIC_RANDOM_LIST:= ${LIST:Ox}
603 @echo "${RANDOM_LIST}"
604 @echo "${RANDOM_LIST}"
605 @echo "${STATIC_RANDOM_LIST}"
606 @echo "${STATIC_RANDOM_LIST}"
607 may produce output similar to:
614 :
\b:Q
\bQ Quotes every shell meta-character in the variable, so that it can be
615 passed safely through recursive invocations of b
\bbm
\bma
\bak
\bke
\be.
617 :
\b:R
\bR Replaces each word in the variable with everything but its suffix.
619 :
\b:t
\btA
\bA Attempt to convert variable to an absolute path using realpath(3),
620 if that fails, the value is unchanged.
622 :
\b:t
\btl
\bl Converts variable to lower-case letters.
625 Words in the variable are normally separated by a space on expan-
626 sion. This modifier sets the separator to the character _
\bc. If _
\bc is
627 omitted, then no separator is used. The common escapes (including
628 octal numeric codes), work as expected.
630 :
\b:t
\btu
\bu Converts variable to upper-case letters.
632 :
\b:t
\btW
\bW Causes the value to be treated as a single word (possibly containing
633 embedded white space). See also `:
\b:[
\b[*
\b*]
\b]'.
635 :
\b:t
\btw
\bw Causes the value to be treated as a sequence of words delimited by
636 white space. See also `:
\b:[
\b[@
\b@]
\b]'.
638 :
\b:S
\bS/_
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg/_
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg/[1
\b1g
\bgW
\bW]
639 Modify the first occurrence of _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg in the variable's value,
640 replacing it with _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg. If a `g' is appended to the last
641 slash of the pattern, all occurrences in each word are replaced. If
642 a `1' is appended to the last slash of the pattern, only the first
643 word is affected. If a `W' is appended to the last slash of the
644 pattern, then the value is treated as a single word (possibly con-
645 taining embedded white space). If _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg begins with a caret
646 (`^'), _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg is anchored at the beginning of each word. If
647 _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg ends with a dollar sign (`$'), it is anchored at the end
648 of each word. Inside _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg, an ampersand (`&') is replaced by
649 _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg (without any `^' or `$'). Any character may be used as a
650 delimiter for the parts of the modifier string. The anchoring,
651 ampersand and delimiter characters may be escaped with a backslash
654 Variable expansion occurs in the normal fashion inside both
655 _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg and _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg with the single exception that a backslash
656 is used to prevent the expansion of a dollar sign (`$'), not a pre-
657 ceding dollar sign as is usual.
659 :
\b:C
\bC/_
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn/_
\br_
\be_
\bp_
\bl_
\ba_
\bc_
\be_
\bm_
\be_
\bn_
\bt/[1
\b1g
\bgW
\bW]
660 The :
\b:C
\bC modifier is just like the :
\b:S
\bS modifier except that the old and
661 new strings, instead of being simple strings, are a regular expres-
662 sion (see regex(3)) string _
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn and an ed(1)-style string
663 _
\br_
\be_
\bp_
\bl_
\ba_
\bc_
\be_
\bm_
\be_
\bn_
\bt. Normally, the first occurrence of the pattern _
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn
664 in each word of the value is substituted with _
\br_
\be_
\bp_
\bl_
\ba_
\bc_
\be_
\bm_
\be_
\bn_
\bt. The `1'
665 modifier causes the substitution to apply to at most one word; the
666 `g' modifier causes the substitution to apply to as many instances
667 of the search pattern _
\bp_
\ba_
\bt_
\bt_
\be_
\br_
\bn as occur in the word or words it is
668 found in; the `W' modifier causes the value to be treated as a sin-
669 gle word (possibly containing embedded white space). Note that `1'
670 and `g' are orthogonal; the former specifies whether multiple words
671 are potentially affected, the latter whether multiple substitutions
672 can potentially occur within each affected word.
674 :
\b:T
\bT Replaces each word in the variable with its last component.
676 :
\b:u
\bu Remove adjacent duplicate words (like uniq(1)).
678 :
\b:?
\b?_
\bt_
\br_
\bu_
\be_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg:
\b:_
\bf_
\ba_
\bl_
\bs_
\be_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg
679 If the variable name (not its value), when parsed as a .if condi-
680 tional expression, evaluates to true, return as its value the
681 _
\bt_
\br_
\bu_
\be_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg, otherwise return the _
\bf_
\ba_
\bl_
\bs_
\be_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg. Since the variable
682 name is used as the expression, :? must be the first modifier after
683 the variable name itself - which will, of course, usually contain
684 variable expansions. A common error is trying to use expressions
686 ${NUMBERS:M42:?match:no}
687 which actually tests defined(NUMBERS), to determine is any words
688 match "42" you need to use something like:
689 ${${NUMBERS:M42} != :?match:no}.
691 _
\b:_
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg_
\b=_
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg
692 This is the AT&T System V UNIX style variable substitution. It must
693 be the last modifier specified. If _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg or _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg do not
694 contain the pattern matching character _
\b% then it is assumed that
695 they are anchored at the end of each word, so only suffixes or
696 entire words may be replaced. Otherwise _
\b% is the substring of
697 _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg to be replaced in _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg.
699 Variable expansion occurs in the normal fashion inside both
700 _
\bo_
\bl_
\bd_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg and _
\bn_
\be_
\bw_
\b__
\bs_
\bt_
\br_
\bi_
\bn_
\bg with the single exception that a backslash
701 is used to prevent the expansion of a dollar sign (`$'), not a pre-
702 ceding dollar sign as is usual.
704 :
\b:@
\b@_
\bt_
\be_
\bm_
\bp@
\b@_
\bs_
\bt_
\br_
\bi_
\bn_
\bg@
\b@
705 This is the loop expansion mechanism from the OSF Development Envi-
706 ronment (ODE) make. Unlike .
\b.f
\bfo
\bor
\br loops expansion occurs at the time
707 of reference. Assign _
\bt_
\be_
\bm_
\bp to each word in the variable and evaluate
708 _
\bs_
\bt_
\br_
\bi_
\bn_
\bg. The ODE convention is that _
\bt_
\be_
\bm_
\bp should start and end with a
710 ${LINKS:@.LINK.@${LN} ${TARGET} ${.LINK.}@}
712 :
\b:U
\bU_
\bn_
\be_
\bw_
\bv_
\ba_
\bl
713 If the variable is undefined _
\bn_
\be_
\bw_
\bv_
\ba_
\bl is the value. If the variable
714 is defined, the existing value is returned. This is another ODE
715 make feature. It is handy for setting per-target CFLAGS for
717 ${_${.TARGET:T}_CFLAGS:U${DEF_CFLAGS}}
718 If a value is only required if the variable is undefined, use:
721 :
\b:D
\bD_
\bn_
\be_
\bw_
\bv_
\ba_
\bl
722 If the variable is defined _
\bn_
\be_
\bw_
\bv_
\ba_
\bl is the value.
724 :
\b:L
\bL The name of the variable is the value.
726 :
\b:P
\bP The path of the node which has the same name as the variable is the
727 value. If no such node exists or its path is null, then the name of
728 the variable is used.
730 :
\b:!
\b!_
\bc_
\bm_
\bd!
\b!
731 The output of running _
\bc_
\bm_
\bd is the value.
733 :
\b:s
\bsh
\bh If the variable is non-empty it is run as a command and the output
734 becomes the new value.
736 :
\b::
\b:=
\b=_
\bs_
\bt_
\br
737 The variable is assigned the value _
\bs_
\bt_
\br after substitution. This
738 modifier and its variations are useful in obscure situations such as
739 wanting to set a variable when shell commands are being parsed.
740 These assignment modifiers always expand to nothing, so if appearing
741 in a rule line by themselves should be preceded with something to
742 keep b
\bbm
\bma
\bak
\bke
\be happy.
744 The `:
\b::
\b:' helps avoid false matches with the AT&T System V UNIX style
745 :
\b:=
\b= modifier and since substitution always occurs the :
\b::
\b:=
\b= form is
748 :
\b::
\b:?
\b?=
\b=_
\bs_
\bt_
\br
749 As for :
\b::
\b:=
\b= but only if the variable does not already have a value.
751 :
\b::
\b:+
\b+=
\b=_
\bs_
\bt_
\br
752 Append _
\bs_
\bt_
\br to the variable.
754 :
\b::
\b:!
\b!=
\b=_
\bc_
\bm_
\bd
755 Assign the output of _
\bc_
\bm_
\bd to the variable.
757 :
\b:[
\b[_
\br_
\ba_
\bn_
\bg_
\be]
\b]
758 Selects one or more words from the value, or performs other opera-
759 tions related to the way in which the value is divided into words.
761 Ordinarily, a value is treated as a sequence of words delimited by
762 white space. Some modifiers suppress this behaviour, causing a
763 value to be treated as a single word (possibly containing embedded
764 white space). An empty value, or a value that consists entirely of
765 white-space, is treated as a single word. For the purposes of the
766 `:
\b:[
\b[]
\b]' modifier, the words are indexed both forwards using positive
767 integers (where index 1 represents the first word), and backwards
768 using negative integers (where index -1 represents the last word).
770 The _
\br_
\ba_
\bn_
\bg_
\be is subjected to variable expansion, and the expanded
771 result is then interpreted as follows:
773 _
\bi_
\bn_
\bd_
\be_
\bx Selects a single word from the value.
775 _
\bs_
\bt_
\ba_
\br_
\bt.
\b..
\b._
\be_
\bn_
\bd
776 Selects all words from _
\bs_
\bt_
\ba_
\br_
\bt to _
\be_
\bn_
\bd, inclusive. For example,
777 `:
\b:[
\b[2
\b2.
\b..
\b.-
\b-1
\b1]
\b]' selects all words from the second word to the last
778 word. If _
\bs_
\bt_
\ba_
\br_
\bt is greater than _
\be_
\bn_
\bd, then the words are out-
779 put in reverse order. For example, `:
\b:[
\b[-
\b-1
\b1.
\b..
\b.1
\b1]
\b]' selects all
780 the words from last to first.
782 *
\b* Causes subsequent modifiers to treat the value as a single
783 word (possibly containing embedded white space). Analogous
784 to the effect of "$*" in Bourne shell.
786 0 Means the same as `:
\b:[
\b[*
\b*]
\b]'.
788 @
\b@ Causes subsequent modifiers to treat the value as a sequence
789 of words delimited by white space. Analogous to the effect
790 of "$@" in Bourne shell.
792 #
\b# Returns the number of words in the value.
794 I
\bIN
\bNC
\bCL
\bLU
\bUD
\bDE
\bE S
\bST
\bTA
\bAT
\bTE
\bEM
\bME
\bEN
\bNT
\bTS
\bS,
\b, C
\bCO
\bON
\bND
\bDI
\bIT
\bTI
\bIO
\bON
\bNA
\bAL
\bLS
\bS A
\bAN
\bND
\bD F
\bFO
\bOR
\bR L
\bLO
\bOO
\bOP
\bPS
\bS
795 Makefile inclusion, conditional structures and for loops reminiscent of
796 the C programming language are provided in b
\bbm
\bma
\bak
\bke
\be. All such structures
797 are identified by a line beginning with a single dot (`.') character.
798 Files are included with either .
\b.i
\bin
\bnc
\bcl
\blu
\bud
\bde
\be <_
\bf_
\bi_
\bl_
\be> or .
\b.i
\bin
\bnc
\bcl
\blu
\bud
\bde
\be "_
\bf_
\bi_
\bl_
\be". Vari-
799 ables between the angle brackets or double quotes are expanded to form
800 the file name. If angle brackets are used, the included makefile is
801 expected to be in the system makefile directory. If double quotes are
802 used, the including makefile's directory and any directories specified
803 using the -
\b-I
\bI option are searched before the system makefile directory.
804 For compatibility with other versions of b
\bbm
\bma
\bak
\bke
\be `include file ...' is also
805 accepted. If the include statement is written as .
\b.-
\b-i
\bin
\bnc
\bcl
\blu
\bud
\bde
\be or as
806 .
\b.s
\bsi
\bin
\bnc
\bcl
\blu
\bud
\bde
\be then errors locating and/or opening include files are ignored.
808 Conditional expressions are also preceded by a single dot as the first
809 character of a line. The possible conditionals are as follows:
811 .
\b.e
\ber
\brr
\bro
\bor
\br _
\bm_
\be_
\bs_
\bs_
\ba_
\bg_
\be
812 The message is printed along with the name of the makefile and
813 line number, then b
\bbm
\bma
\bak
\bke
\be will exit.
815 .
\b.e
\bex
\bxp
\bpo
\bor
\brt
\bt _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.
816 Export the specified global variable. If no variable list is
817 provided, all globals are exported except for internal variables
818 (those that start with `.'). This is not affected by the -
\b-X
\bX
819 flag, so should be used with caution.
821 Appending a variable name to _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bE_
\bX_
\bP_
\bO_
\bR_
\bT_
\bE_
\bD is equivalent to
822 exporting a variable.
824 .
\b.e
\bex
\bxp
\bpo
\bor
\brt
\bt-
\b-e
\ben
\bnv
\bv _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.
825 The same as `.export', except that the variable is not appended
826 to _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bE_
\bX_
\bP_
\bO_
\bR_
\bT_
\bE_
\bD. This allows exporting a value to the environ-
827 ment which is different from that used by b
\bbm
\bma
\bak
\bke
\be internally.
829 .
\b.i
\bin
\bnf
\bfo
\bo _
\bm_
\be_
\bs_
\bs_
\ba_
\bg_
\be
830 The message is printed along with the name of the makefile and
833 .
\b.u
\bun
\bnd
\bde
\bef
\bf _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be
834 Un-define the specified global variable. Only global variables
837 .
\b.u
\bun
\bne
\bex
\bxp
\bpo
\bor
\brt
\bt _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.
838 The opposite of `.export'. The specified global _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be will be
839 removed from _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bE_
\bX_
\bP_
\bO_
\bR_
\bT_
\bE_
\bD. If no variable list is provided,
840 all globals are unexported, and _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bE_
\bX_
\bP_
\bO_
\bR_
\bT_
\bE_
\bD deleted.
842 .
\b.u
\bun
\bne
\bex
\bxp
\bpo
\bor
\brt
\bt-
\b-e
\ben
\bnv
\bv
843 Unexport all globals previously exported and clear the environ-
844 ment inherited from the parent. This operation will cause a mem-
845 ory leak of the original environment, so should be used spar-
846 ingly. Testing for _
\b._
\bM_
\bA_
\bK_
\bE_
\b._
\bL_
\bE_
\bV_
\bE_
\bL being 0, would make sense. Also
847 note that any variables which originated in the parent environ-
848 ment should be explicitly preserved if desired. For example:
850 .if ${.MAKE.LEVEL} == 0
856 Would result in an environment containing only `PATH', which is
857 the minimal useful environment. Actually `.MAKE.LEVEL' will also
858 be pushed into the new environment.
860 .
\b.w
\bwa
\bar
\brn
\bni
\bin
\bng
\bg _
\bm_
\be_
\bs_
\bs_
\ba_
\bg_
\be
861 The message prefixed by `_
\bw_
\ba_
\br_
\bn_
\bi_
\bn_
\bg_
\b:' is printed along with the name
862 of the makefile and line number.
864 .
\b.i
\bif
\bf [!]_
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn _
\b._
\b._
\b.]
865 Test the value of an expression.
867 .
\b.i
\bif
\bfd
\bde
\bef
\bf [!]_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.]
868 Test the value of a variable.
870 .
\b.i
\bif
\bfn
\bnd
\bde
\bef
\bf [!]_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.]
871 Test the value of a variable.
873 .
\b.i
\bif
\bfm
\bma
\bak
\bke
\be [!]_
\bt_
\ba_
\br_
\bg_
\be_
\bt [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bt_
\ba_
\br_
\bg_
\be_
\bt _
\b._
\b._
\b.]
874 Test the target being built.
876 .
\b.i
\bif
\bfn
\bnm
\bma
\bak
\bke
\be [!] _
\bt_
\ba_
\br_
\bg_
\be_
\bt [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bt_
\ba_
\br_
\bg_
\be_
\bt _
\b._
\b._
\b.]
877 Test the target being built.
879 .
\b.e
\bel
\bls
\bse
\be Reverse the sense of the last conditional.
881 .
\b.e
\bel
\bli
\bif
\bf [!] _
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn _
\b._
\b._
\b.]
882 A combination of `.
\b.e
\bel
\bls
\bse
\be' followed by `.
\b.i
\bif
\bf'.
884 .
\b.e
\bel
\bli
\bif
\bfd
\bde
\bef
\bf [!]_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.]
885 A combination of `.
\b.e
\bel
\bls
\bse
\be' followed by `.
\b.i
\bif
\bfd
\bde
\bef
\bf'.
887 .
\b.e
\bel
\bli
\bif
\bfn
\bnd
\bde
\bef
\bf [!]_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.]
888 A combination of `.
\b.e
\bel
\bls
\bse
\be' followed by `.
\b.i
\bif
\bfn
\bnd
\bde
\bef
\bf'.
890 .
\b.e
\bel
\bli
\bif
\bfm
\bma
\bak
\bke
\be [!]_
\bt_
\ba_
\br_
\bg_
\be_
\bt [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bt_
\ba_
\br_
\bg_
\be_
\bt _
\b._
\b._
\b.]
891 A combination of `.
\b.e
\bel
\bls
\bse
\be' followed by `.
\b.i
\bif
\bfm
\bma
\bak
\bke
\be'.
893 .
\b.e
\bel
\bli
\bif
\bfn
\bnm
\bma
\bak
\bke
\be [!]_
\bt_
\ba_
\br_
\bg_
\be_
\bt [_
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br _
\bt_
\ba_
\br_
\bg_
\be_
\bt _
\b._
\b._
\b.]
894 A combination of `.
\b.e
\bel
\bls
\bse
\be' followed by `.
\b.i
\bif
\bfn
\bnm
\bma
\bak
\bke
\be'.
896 .
\b.e
\ben
\bnd
\bdi
\bif
\bf End the body of the conditional.
898 The _
\bo_
\bp_
\be_
\br_
\ba_
\bt_
\bo_
\br may be any one of the following:
902 &
\b&&
\b& Logical AND; of higher precedence than ``||''.
904 As in C, b
\bbm
\bma
\bak
\bke
\be will only evaluate a conditional as far as is necessary to
905 determine its value. Parentheses may be used to change the order of
906 evaluation. The boolean operator `!
\b!' may be used to logically negate an
907 entire conditional. It is of higher precedence than `&
\b&&
\b&'.
909 The value of _
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn may be any of the following:
911 d
\bde
\bef
\bfi
\bin
\bne
\bed
\bd Takes a variable name as an argument and evaluates to true if
912 the variable has been defined.
914 m
\bma
\bak
\bke
\be Takes a target name as an argument and evaluates to true if the
915 target was specified as part of b
\bbm
\bma
\bak
\bke
\be's command line or was
916 declared the default target (either implicitly or explicitly,
917 see _
\b._
\bM_
\bA_
\bI_
\bN) before the line containing the conditional.
919 e
\bem
\bmp
\bpt
\bty
\by Takes a variable, with possible modifiers, and evaluates to true
920 if the expansion of the variable would result in an empty
923 e
\bex
\bxi
\bis
\bst
\bts
\bs Takes a file name as an argument and evaluates to true if the
924 file exists. The file is searched for on the system search path
925 (see _
\b._
\bP_
\bA_
\bT_
\bH).
927 t
\bta
\bar
\brg
\bge
\bet
\bt Takes a target name as an argument and evaluates to true if the
928 target has been defined.
930 c
\bco
\bom
\bmm
\bma
\ban
\bnd
\bds
\bs
931 Takes a target name as an argument and evaluates to true if the
932 target has been defined and has commands associated with it.
934 _
\bE_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn may also be an arithmetic or string comparison. Variable
935 expansion is performed on both sides of the comparison, after which the
936 integral values are compared. A value is interpreted as hexadecimal if
937 it is preceded by 0x, otherwise it is decimal; octal numbers are not sup-
938 ported. The standard C relational operators are all supported. If after
939 variable expansion, either the left or right hand side of a `=
\b==
\b=' or `!
\b!=
\b='
940 operator is not an integral value, then string comparison is performed
941 between the expanded variables. If no relational operator is given, it
942 is assumed that the expanded variable is being compared against 0 or an
943 empty string in the case of a string comparison.
945 When b
\bbm
\bma
\bak
\bke
\be is evaluating one of these conditional expressions, and it
946 encounters a (white-space separated) word it doesn't recognize, either
947 the ``make'' or ``defined'' expression is applied to it, depending on the
948 form of the conditional. If the form is `.
\b.i
\bif
\bfd
\bde
\bef
\bf', `.
\b.i
\bif
\bfn
\bnd
\bde
\bef
\bf', or `.
\b.i
\bif
\bf'
949 the ``defined'' expression is applied. Similarly, if the form is
950 `.
\b.i
\bif
\bfm
\bma
\bak
\bke
\be' or `.
\b.i
\bif
\bfn
\bnm
\bma
\bak
\bke
\be, t
\bth
\bhe
\be' ``make'' expression is applied.
952 If the conditional evaluates to true the parsing of the makefile contin-
953 ues as before. If it evaluates to false, the following lines are
954 skipped. In both cases this continues until a `.
\b.e
\bel
\bls
\bse
\be' or `.
\b.e
\ben
\bnd
\bdi
\bif
\bf' is
957 For loops are typically used to apply a set of rules to a list of files.
958 The syntax of a for loop is:
960 .
\b.f
\bfo
\bor
\br _
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be [_
\bv_
\ba_
\br_
\bi_
\ba_
\bb_
\bl_
\be _
\b._
\b._
\b.] i
\bin
\bn _
\be_
\bx_
\bp_
\br_
\be_
\bs_
\bs_
\bi_
\bo_
\bn
962 .
\b.e
\ben
\bnd
\bdf
\bfo
\bor
\br
964 After the for e
\bex
\bxp
\bpr
\bre
\bes
\bss
\bsi
\bio
\bon
\bn is evaluated, it is split into words. On each
965 iteration of the loop, one word is taken and assigned to each v
\bva
\bar
\bri
\bia
\bab
\bbl
\ble
\be,
966 in order, and these v
\bva
\bar
\bri
\bia
\bab
\bbl
\ble
\bes
\bs are substituted into the m
\bma
\bak
\bke
\be-
\b-r
\bru
\bul
\ble
\bes
\bs inside
967 the body of the for loop. The number of words must come out even; that
968 is, if there are three iteration variables, the number of words provided
969 must be a multiple of three.
971 C
\bCO
\bOM
\bMM
\bME
\bEN
\bNT
\bTS
\bS
972 Comments begin with a hash (`#') character, anywhere but in a shell com-
973 mand line, and continue to the end of an unescaped new line.
975 S
\bSP
\bPE
\bEC
\bCI
\bIA
\bAL
\bL S
\bSO
\bOU
\bUR
\bRC
\bCE
\bES
\bS (
\b(A
\bAT
\bTT
\bTR
\bRI
\bIB
\bBU
\bUT
\bTE
\bES
\bS)
\b)
976 .
\b.E
\bEX
\bXE
\bEC
\bC Target is never out of date, but always execute commands any-
979 .
\b.I
\bIG
\bGN
\bNO
\bOR
\bRE
\bE Ignore any errors from the commands associated with this tar-
980 get, exactly as if they all were preceded by a dash (`-').
982 .
\b.M
\bMA
\bAD
\bDE
\bE Mark all sources of this target as being up-to-date.
984 .
\b.M
\bMA
\bAK
\bKE
\bE Execute the commands associated with this target even if the -
\b-n
\bn
985 or -
\b-t
\bt options were specified. Normally used to mark recursive
986 b
\bbm
\bma
\bak
\bke
\be's.
988 .
\b.N
\bNO
\bOP
\bPA
\bAT
\bTH
\bH Do not search for the target in the directories specified by
989 .
\b.P
\bPA
\bAT
\bTH
\bH.
991 .
\b.N
\bNO
\bOT
\bTM
\bMA
\bAI
\bIN
\bN Normally b
\bbm
\bma
\bak
\bke
\be selects the first target it encounters as the
992 default target to be built if no target was specified. This
993 source prevents this target from being selected.
995 .
\b.O
\bOP
\bPT
\bTI
\bIO
\bON
\bNA
\bAL
\bL
996 If a target is marked with this attribute and b
\bbm
\bma
\bak
\bke
\be can't fig-
997 ure out how to create it, it will ignore this fact and assume
998 the file isn't needed or already exists.
1000 .
\b.P
\bPH
\bHO
\bON
\bNY
\bY The target does not correspond to an actual file; it is always
1001 considered to be out of date, and will not be created with the
1002 -
\b-t
\bt option. Suffix-transformation rules are not applied to
1003 .
\b.P
\bPH
\bHO
\bON
\bNY
\bY targets.
1005 .
\b.P
\bPR
\bRE
\bEC
\bCI
\bIO
\bOU
\bUS
\bS
1006 When b
\bbm
\bma
\bak
\bke
\be is interrupted, it normally removes any partially
1007 made targets. This source prevents the target from being
1010 .
\b.R
\bRE
\bEC
\bCU
\bUR
\bRS
\bSI
\bIV
\bVE
\bE
1011 Synonym for .
\b.M
\bMA
\bAK
\bKE
\bE.
1013 .
\b.S
\bSI
\bIL
\bLE
\bEN
\bNT
\bT Do not echo any of the commands associated with this target,
1014 exactly as if they all were preceded by an at sign (`@').
1016 .
\b.U
\bUS
\bSE
\bE Turn the target into b
\bbm
\bma
\bak
\bke
\be's version of a macro. When the tar-
1017 get is used as a source for another target, the other target
1018 acquires the commands, sources, and attributes (except for
1019 .
\b.U
\bUS
\bSE
\bE) of the source. If the target already has commands, the
1020 .
\b.U
\bUS
\bSE
\bE target's commands are appended to them.
1022 .
\b.U
\bUS
\bSE
\bEB
\bBE
\bEF
\bFO
\bOR
\bRE
\bE
1023 Exactly like .
\b.U
\bUS
\bSE
\bE, but prepend the .
\b.U
\bUS
\bSE
\bEB
\bBE
\bEF
\bFO
\bOR
\bRE
\bE target commands
1026 .
\b.W
\bWA
\bAI
\bIT
\bT If .
\b.W
\bWA
\bAI
\bIT
\bT appears in a dependency line, the sources that precede
1027 it are made before the sources that succeed it in the line.
1028 Since the dependents of files are not made until the file
1029 itself could be made, this also stops the dependents being
1030 built unless they are needed for another branch of the depen-
1031 dency tree. So given:
1042 the output is always `a', `b1', `b', `x'.
1043 The ordering imposed by .
\b.W
\bWA
\bAI
\bIT
\bT is only relevant for parallel
1046 S
\bSP
\bPE
\bEC
\bCI
\bIA
\bAL
\bL T
\bTA
\bAR
\bRG
\bGE
\bET
\bTS
\bS
1047 Special targets may not be included with other targets, i.e. they must be
1048 the only target specified.
1050 .
\b.B
\bBE
\bEG
\bGI
\bIN
\bN Any command lines attached to this target are executed before
1051 anything else is done.
1053 .
\b.D
\bDE
\bEF
\bFA
\bAU
\bUL
\bLT
\bT
1054 This is sort of a .
\b.U
\bUS
\bSE
\bE rule for any target (that was used only
1055 as a source) that b
\bbm
\bma
\bak
\bke
\be can't figure out any other way to cre-
1056 ate. Only the shell script is used. The .
\b.I
\bIM
\bMP
\bPS
\bSR
\bRC
\bC variable of a
1057 target that inherits .
\b.D
\bDE
\bEF
\bFA
\bAU
\bUL
\bLT
\bT's commands is set to the target's
1060 .
\b.E
\bEN
\bND
\bD Any command lines attached to this target are executed after
1061 everything else is done.
1063 .
\b.E
\bER
\bRR
\bRO
\bOR
\bR Any command lines attached to this target are executed when
1064 another target fails. The .
\b.E
\bER
\bRR
\bRO
\bOR
\bR_
\b_T
\bTA
\bAR
\bRG
\bGE
\bET
\bT variable is set to the
1065 target that failed. See also M
\bMA
\bAK
\bKE
\bE_
\b_P
\bPR
\bRI
\bIN
\bNT
\bT_
\b_V
\bVA
\bAR
\bR_
\b_O
\bON
\bN_
\b_E
\bER
\bRR
\bRO
\bOR
\bR.
1067 .
\b.I
\bIG
\bGN
\bNO
\bOR
\bRE
\bE Mark each of the sources with the .
\b.I
\bIG
\bGN
\bNO
\bOR
\bRE
\bE attribute. If no
1068 sources are specified, this is the equivalent of specifying the
1071 .
\b.I
\bIN
\bNT
\bTE
\bER
\bRR
\bRU
\bUP
\bPT
\bT
1072 If b
\bbm
\bma
\bak
\bke
\be is interrupted, the commands for this target will be
1075 .
\b.M
\bMA
\bAI
\bIN
\bN If no target is specified when b
\bbm
\bma
\bak
\bke
\be is invoked, this target
1078 .
\b.M
\bMA
\bAK
\bKE
\bEF
\bFL
\bLA
\bAG
\bGS
\bS
1079 This target provides a way to specify flags for b
\bbm
\bma
\bak
\bke
\be when the
1080 makefile is used. The flags are as if typed to the shell,
1081 though the -
\b-f
\bf option will have no effect.
1083 .
\b.N
\bNO
\bOP
\bPA
\bAT
\bTH
\bH Apply the .
\b.N
\bNO
\bOP
\bPA
\bAT
\bTH
\bH attribute to any specified sources.
1085 .
\b.N
\bNO
\bOT
\bTP
\bPA
\bAR
\bRA
\bAL
\bLL
\bLE
\bEL
\bL
1086 Disable parallel mode.
1088 .
\b.N
\bNO
\bO_
\b_P
\bPA
\bAR
\bRA
\bAL
\bLL
\bLE
\bEL
\bL
1089 Synonym for .
\b.N
\bNO
\bOT
\bTP
\bPA
\bAR
\bRA
\bAL
\bLL
\bLE
\bEL
\bL, for compatibility with other pmake
1092 .
\b.O
\bOR
\bRD
\bDE
\bER
\bR The named targets are made in sequence. This ordering does not
1093 add targets to the list of targets to be made. Since the depen-
1094 dents of a target do not get built until the target itself could
1095 be built, unless `a' is built by another part of the dependency
1096 graph, the following is a dependency loop:
1101 The ordering imposed by .
\b.O
\bOR
\bRD
\bDE
\bER
\bR is only relevant for parallel
1104 .
\b.P
\bPA
\bAT
\bTH
\bH The sources are directories which are to be searched for files
1105 not found in the current directory. If no sources are speci-
1106 fied, any previously specified directories are deleted. If the
1107 source is the special .
\b.D
\bDO
\bOT
\bTL
\bLA
\bAS
\bST
\bT target, then the current working
1108 directory is searched last.
1110 .
\b.P
\bPH
\bHO
\bON
\bNY
\bY Apply the .
\b.P
\bPH
\bHO
\bON
\bNY
\bY attribute to any specified sources.
1112 .
\b.P
\bPR
\bRE
\bEC
\bCI
\bIO
\bOU
\bUS
\bS
1113 Apply the .
\b.P
\bPR
\bRE
\bEC
\bCI
\bIO
\bOU
\bUS
\bS attribute to any specified sources. If no
1114 sources are specified, the .
\b.P
\bPR
\bRE
\bEC
\bCI
\bIO
\bOU
\bUS
\bS attribute is applied to
1115 every target in the file.
1117 .
\b.S
\bSH
\bHE
\bEL
\bLL
\bL Sets the shell that b
\bbm
\bma
\bak
\bke
\be will use to execute commands. The
1118 sources are a set of _
\bf_
\bi_
\be_
\bl_
\bd_
\b=_
\bv_
\ba_
\bl_
\bu_
\be pairs.
1120 _
\bn_
\ba_
\bm_
\be This is the minimal specification, used to select
1121 one of the builtin shell specs; _
\bs_
\bh, _
\bk_
\bs_
\bh, and _
\bc_
\bs_
\bh.
1123 _
\bp_
\ba_
\bt_
\bh Specifies the path to the shell.
1125 _
\bh_
\ba_
\bs_
\bE_
\br_
\br_
\bC_
\bt_
\bl Indicates whether the shell supports exit on error.
1127 _
\bc_
\bh_
\be_
\bc_
\bk The command to turn on error checking.
1129 _
\bi_
\bg_
\bn_
\bo_
\br_
\be The command to disable error checking.
1131 _
\be_
\bc_
\bh_
\bo The command to turn on echoing of commands executed.
1133 _
\bq_
\bu_
\bi_
\be_
\bt The command to turn off echoing of commands exe-
1136 _
\bf_
\bi_
\bl_
\bt_
\be_
\br The output to filter after issuing the _
\bq_
\bu_
\bi_
\be_
\bt com-
1137 mand. It is typically identical to _
\bq_
\bu_
\bi_
\be_
\bt.
1139 _
\be_
\br_
\br_
\bF_
\bl_
\ba_
\bg The flag to pass the shell to enable error checking.
1141 _
\be_
\bc_
\bh_
\bo_
\bF_
\bl_
\ba_
\bg The flag to pass the shell to enable command echo-
1144 _
\bn_
\be_
\bw_
\bl_
\bi_
\bn_
\be The string literal to pass the shell that results in
1145 a single newline character when used outside of any
1149 .SHELL: name=ksh path=/bin/ksh hasErrCtl=true \
1150 check="set -e" ignore="set +e" \
1151 echo="set -v" quiet="set +v" filter="set +v" \
1152 echoFlag=v errFlag=e newline="'\n'"
1154 .
\b.S
\bSI
\bIL
\bLE
\bEN
\bNT
\bT Apply the .
\b.S
\bSI
\bIL
\bLE
\bEN
\bNT
\bT attribute to any specified sources. If no
1155 sources are specified, the .
\b.S
\bSI
\bIL
\bLE
\bEN
\bNT
\bT attribute is applied to every
1156 command in the file.
1158 .
\b.S
\bSU
\bUF
\bFF
\bFI
\bIX
\bXE
\bES
\bS
1159 Each source specifies a suffix to b
\bbm
\bma
\bak
\bke
\be. If no sources are
1160 specified, any previously specified suffixes are deleted. It
1161 allows the creation of suffix-transformation rules.
1167 cc -o ${.TARGET} -c ${.IMPSRC}
1169 E
\bEN
\bNV
\bVI
\bIR
\bRO
\bON
\bNM
\bME
\bEN
\bNT
\bT
1170 b
\bbm
\bma
\bak
\bke
\be uses the following environment variables, if they exist: MACHINE,
1171 MACHINE_ARCH, MAKE, MAKEFLAGS, MAKEOBJDIR, MAKEOBJDIRPREFIX, MAKESYSPATH,
1174 MAKEOBJDIRPREFIX and MAKEOBJDIR may only be set in the environment or on
1175 the command line to b
\bbm
\bma
\bak
\bke
\be and not as makefile variables; see the descrip-
1176 tion of `_
\b._
\bO_
\bB_
\bJ_
\bD_
\bI_
\bR' for more details.
1178 F
\bFI
\bIL
\bLE
\bES
\bS
1179 .depend list of dependencies
1180 Makefile list of dependencies
1181 makefile list of dependencies
1182 sys.mk system makefile
1183 /usr/share/mk system makefile directory
1185 C
\bCO
\bOM
\bMP
\bPA
\bAT
\bTI
\bIB
\bBI
\bIL
\bLI
\bIT
\bTY
\bY
1186 The basic make syntax is compatible between different versions of make,
1187 however the special variables, variable modifiers and conditionals are
1190 The way that parallel makes are scheduled changed in NetBSD 4.0 so that
1191 .ORDER and .WAIT apply recursively to the dependant nodes. The algo-
1192 rithms used may change again in the future.
1194 The way that .for loop variables are substituted changed after NetBSD 5.0
1195 so that they still appear to be variable expansions. In particular this
1196 stops them being treated as syntax, and removes some obscure problems
1197 using them in .if statements.
1199 S
\bSE
\bEE
\bE A
\bAL
\bLS
\bSO
\bO
1202 H
\bHI
\bIS
\bST
\bTO
\bOR
\bRY
\bY
1203 b
\bbm
\bma
\bak
\bke
\be is derived from NetBSD's make(1). It uses autoconf to facilitate
1204 portability to other platforms.
1206 NetBSD 5.0_STABLE June 30, 2010 NetBSD 5.0_STABLE