move the "meat" into the wiki, this file just contains pointers now
[ghc.git] / mk / target.mk
1 #################################################################################
2 #
3 # target.mk
4 #
5 # Standard targets for GHC
6 #
7 #################################################################################
8
9 #
10 # This file contain three groups of target rules:
11 #
12 # 1. GHC targets
13 # depend*
14 # runtests*
15 #
16 # 2. GNU standard targets
17 # all*
18 # install* uninstall installcheck installdirs
19 # install-docs*
20 # clean* distclean* mostlyclean* maintainer-clean*
21 # tags*
22 # dvi ps (no info) GHC adds: pdf rtf html chm HxS
23 # check
24 #
25 # 3. Some of the above targets have a version that
26 # recursively invokes that target in sub-directories.
27 # This relies on the importing Makefile setting SUBDIRS
28 #
29 # The recursive targets are marked with a * above
30 #
31
32 #
33 #
34 #
35
36 ##################################################################
37 # Pre-compute the list of sources so we don't have to do this
38 # multiple times. See paths.mk.
39
40 PRE_SRCS := $(ALL_SRCS)
41
42 ##################################################################
43 # Include package building machinery
44
45 include $(TOP)/mk/package.mk
46
47 ###################################################################
48 # Suffix rules for Haskell, C and literate
49
50 include $(TOP)/mk/suffix.mk
51
52 ##################################################################
53 # GHC standard targets
54 #
55 # depend:
56 #
57 # The depend target has to cope with a set of files that may have
58 # different ways of computing their dependencies, i.e., a Haskell
59 # module's dependencies are computed differently from C files.
60 #
61 # Note that we don't compute dependencies automatically, i.e., have the
62 # .depend file be a target that is dependent on the Haskell+C sources,
63 # and then have the `depend' target depend on `.depend'. The reason for
64 # this is that when GNU make is processing the `include .depend' statement
65 # it records .depend as being a Makefile. Before doing any other processing,
66 # `make' will try to check to see if the Makefiles are up-to-date. And,
67 # surprisingly enough, .depend has a rule for it, so if any of the source
68 # files change, it will be invoked, *regardless* of what target you're making.
69 #
70 # So, for now, the dependencies has to be re-computed manually via `make depend'
71 # whenever a module changes its set of imports. Doing what was outlined above
72 # is only a small optimisation anyway, it would avoid the recomputation of
73 # dependencies if the .depend file was newer than any of the source modules.
74 #
75 .PHONY: depend
76
77 # Compiler produced files that are targets of the source's imports.
78 MKDEPENDHS_OBJ_SUFFICES=o
79
80 ifneq "$(BootingFromHc)" "YES"
81 PKGCONF_DEP = $(STAMP_PKG_CONF)
82 endif
83
84 depend :: $(MKDEPENDHS_SRCS) $(MKDEPENDC_SRCS) $(PKGCONF_DEP)
85 @$(RM) .depend
86 @touch .depend
87 ifneq "$(DOC_SRCS)" ""
88 $(MKDEPENDLIT) -o .depend $(MKDEPENDLIT_OPTS) $(filter %.lit,$(DOC_SRCS))
89 endif
90 ifneq "$(MKDEPENDC_SRCS)" ""
91 $(MKDEPENDC) -f .depend $(MKDEPENDC_OPTS) $(foreach way,$(WAYS),-s $(way)) -- $(CC_OPTS) -- $(MKDEPENDC_SRCS)
92 endif
93 ifneq "$(MKDEPENDHS_SRCS)" ""
94 $(MKDEPENDHS) -M -optdep-f -optdep.depend $(foreach way,$(WAYS),-optdep-s -optdep$(way)) $(foreach obj,$(MKDEPENDHS_OBJ_SUFFICES),-osuf $(obj)) $(MKDEPENDHS_OPTS) $(filter-out -split-objs, $(HC_OPTS)) $(MKDEPENDHS_SRCS)
95 endif
96
97
98 ##################################################################
99 # boot
100 #
101 # The boot target, at a minimum generates dependency information
102
103 .PHONY: boot
104
105 ifeq "$(NO_BOOT_TARGET)" "YES"
106 boot ::
107 else
108 boot :: depend
109 endif
110
111 ##################################################################
112 # GNU Standard targets
113 #
114 # Every Makefile should define the following targets
115 #
116 # `all'
117 # Compile the entire program. This should be the default target.
118 # This target need not rebuild any documentation files
119 #
120 # `install'
121 # Compile the program and copy the executables, libraries, and so on
122 # to the file names where they should reside for actual use. If
123 # there is a simple test to verify that a program is properly
124 # installed, this target should run that test.
125 #
126 # The commands should create all the directories in which files are
127 # to be installed, if they don't already exist. This includes the
128 # directories specified as the values of the variables prefix and
129 # exec_prefix , as well as all subdirectories that are needed. One
130 # way to do this is by means of an installdirs target as described
131 # below.
132 #
133 # Use `-' before any command for installing a man page, so that make
134 # will ignore any errors. This is in case there are systems that
135 # don't have the Unix man page documentation system installed.
136 #
137 # `uninstall'
138 # Delete all the installed files that the `install' target would
139 # create (but not the noninstalled files such as `make all' would
140 # create).
141 #
142 # `clean'
143 #
144 # Delete all files from the current directory that are normally
145 # created by building the program. Don't delete the files that
146 # record the configuration. Also preserve files that could be made
147 # by building, but normally aren't because the distribution comes
148 # with them.
149 #
150 # Delete `.dvi' files here if they are not part of the
151 # distribution.
152 #
153 # `distclean'
154 # Delete all files from the current directory that are created by
155 # configuring or building the program. If you have unpacked the
156 # source and built the program without creating any other files,
157 # `make distclean' should leave only the files that were in the
158 # distribution.
159 #
160 # `mostlyclean'
161 # Like `clean', but may refrain from deleting a few files that
162 # people normally don't want to recompile. For example, the
163 # `mostlyclean' target for GCC does not delete `libgcc.a', because
164 # recompiling it is rarely necessary and takes a lot of time.
165 #
166 # `maintainer-clean'
167 # Delete everything from the current directory that can be
168 # reconstructed with this Makefile. This typically includes
169 # everything deleted by distclean , plus more: C source files
170 # produced by Bison, tags tables, and so on.
171 #
172 # One exception, however: `make maintainer-clean' should not delete
173 # `configure' even if `configure' can be remade using a rule in the
174 # Makefile. More generally, `make maintainer-clean' should not delete
175 # anything that needs to exist in order to run `configure' and then
176 # begin to build the program.
177 #
178 # `TAGS'
179 # Update a tags table for this program.
180 #
181 # `dvi' `ps' `pdf' `html' `chm' `HxS' `rtf'
182 # Generate DVI/PS/PDF files for LaTeX/DocBook docs. Not everything is
183 # supported everywhere, but the intention is to standardise on DocBook
184 # producing all formats.
185 #
186 # `check'
187 # Perform self-tests (if any). The user must build the program
188 # before running the tests, but need not install the program; you
189 # should write the self-tests so that they work when the program is
190 # built but not installed.
191 #
192 # The following targets are suggested as conventional names, for programs
193 # in which they are useful.
194 #
195 # installcheck
196 # Perform installation tests (if any). The user must build and
197 # install the program before running the tests. You should not
198 # assume that `$(bindir)' is in the search path.
199 #
200 # installdirs
201 # It's useful to add a target named `installdirs' to create the
202 # directories where files are installed, and their parent
203 # directories. There is a script called `mkinstalldirs' which is
204 # convenient for this; find it in the Texinfo package.
205 # (GHC: we use a close relative of the suggested script, situated
206 # in glafp-utils/mkdirhier -- SOF)
207
208
209
210
211 ###########################################
212 #
213 # Targets: "all"
214 #
215 ###########################################
216
217 # For each of these variables that is defined
218 # we generate one "all" rule and one rule for the variable itself:
219 #
220 # HS_PROG Haskell program
221 # C_PROG C program
222 # LIBRARY Library
223 # SCRIPT_PROG Script (e.g. Perl script)
224 #
225 # For details of exactly what rule is generated, see the
226 # relevant section below
227
228 .PHONY: all
229
230 #----------------------------------------
231 # Haskell programs
232
233 ifneq "$(HS_PROG)" ""
234 all :: $(HS_PROG)
235
236 ifneq "$(BootingFromHc)" "YES"
237 $(HS_PROG) :: $(OBJS)
238 $(HC) -o $@ $(HC_OPTS) $(LD_OPTS) $(OBJS)
239 else
240 # see bootstrap.mk
241 $(HS_PROG) :: $(OBJS)
242 $(CC) -o $@ $(HC_BOOT_CC_OPTS) $(HC_BOOT_LD_OPTS) $(OBJS) $(HC_BOOT_LIBS)
243 endif
244 endif
245
246 #----------------------------------------
247 # C programs
248
249 ifneq "$(C_PROG)" ""
250 all :: $(C_PROG)
251
252 $(C_PROG) :: $(C_OBJS)
253 $(CC) -o $@ $(CC_OPTS) $(LD_OPTS) $(C_OBJS) $(LIBS)
254 endif
255
256 #----------------------------------------
257 # Libraries/archives
258 #
259 # Build $(LIBRARY) from $(LIBOBJS)+$(STUBOBJS)
260 #
261 # Inputs:
262 # $(LIBOBJS)
263 # $(STUBOBJS)
264 #
265 # Outputs:
266 # Rule to build $(LIBRARY)
267
268 ifneq "$(LIBRARY)" ""
269 all :: $(LIBRARY)
270
271 ifneq "$(way)" "i"
272 define BUILD_LIB
273 $(RM) $@
274 $(AR) $(AR_OPTS) $@ $(STUBOBJS) $(LIBOBJS)
275 $(RANLIB) $@
276 endef
277 else
278 define BUILD_LIB
279 $(RM) $@
280 al -out:$@ $(STUBOBJS) $(LIBOBJS)
281 endef
282 endif
283
284 #
285 # For Haskell object files, we might have chosen to split
286 # up the object files. Test for whether the library being
287 # built is consisting of Haskell files by (hackily) checking
288 # whether HS_SRCS is empty or not.
289 #
290
291 # can't split objs in way 'u', so we disable it here
292 ifeq "$(way)" "u"
293 SplitObjs = NO
294 endif
295
296 ifneq "$(HS_SRCS)" ""
297 ifeq "$(SplitObjs)" "YES"
298
299 SRC_HC_OPTS += -split-objs
300
301 # We generate the archive into a temporary file libfoo.a.tmp, then
302 # rename it at the end. This avoids the problem that ar may sometimes
303 # fail, leaving a partially built archive behind.
304 ifeq "$(ArSupportsInput)" ""
305 define BUILD_LIB
306 $(RM) $@ $@.tmp
307 (echo $(STUBOBJS) $(C_OBJS) $(GC_C_OBJS); $(FIND) $(patsubst %.$(way_)o,%_split,$(HS_OBJS)) -name '*.$(way_)o' -print) | xargs $(AR) $@
308 $(RANLIB) $@
309 endef
310 else
311 define BUILD_LIB
312 $(RM) $@ $@.tmp
313 echo $(STUBOBJS) > $@.list
314 echo $(C_OBJS) >> $@.list
315 echo $(GC_C_OBJS) >> $@.list
316 $(FIND) $(patsubst %.$(way_)o,%_split,$(HS_OBJS)) -name '*.$(way_)o' -print >> $@.list
317 $(AR) $(AR_OPTS) $@ $(ArSupportsInput) $@.list
318 $(RM) $@.list
319 $(RANLIB) $@
320 endef
321 endif
322
323 # Extra stuff for compiling Haskell files with $(SplitObjs):
324
325 #
326 # If (Haskell) object files are split, cleaning up
327 # consist of descending into the directories where
328 # the myriads of object files have been put.
329 #
330
331 extraclean ::
332 $(FIND) $(patsubst %.$(way_)o,%_split,$(HS_OBJS)) -name '*.$(way_)o' -print -o -name ld.script -print | xargs $(RM) __rm_food
333 -rmdir $(patsubst %.$(way_)o,%_split,$(HS_OBJS)) > /dev/null 2>&1
334
335 endif # $(SplitObjs)
336 endif # $(HS_SRCS)
337
338 #
339 # Remove local symbols from library objects if requested.
340 #
341
342 ifeq "$(StripLibraries)" "YES"
343 ifeq "$(SplitObjs)" "YES"
344 SRC_HC_POST_OPTS += \
345 for i in $(basename $@)_split/*.$(way_)o; do \
346 $(LD) -r $(LD_X) -o $$i.tmp $$i; \
347 $(MV) $$i.tmp $$i; \
348 done
349 else
350 SRC_HC_POST_OPTS += \
351 $(LD) -r $(LD_X) -o $@.tmp $@; $(MV) $@.tmp $@
352 endif # SplitObjs
353 endif # StripLibraries
354
355 # Note: $(STUBOBJS) isn't depended on here, but included when building the lib.
356 # (i.e., the assumption is that $(STUBOBJS) are created as a side-effect
357 # of building $(LIBOBJS)).
358 $(LIBRARY) : $(LIBOBJS)
359 $(BUILD_LIB)
360 endif # LIBRARY = ""
361
362 #----------------------------------------
363 # Building Win32 DLLs
364 #
365
366 ifeq "$(DLLized)" "YES"
367 SRC_CC_OPTS += -DDLLized
368
369 ifneq "$(PACKAGE)" ""
370
371 SRC_BLD_DLL_OPTS += --export-all --output-def=HS$(PACKAGE)$(_cbits)$(_way).def DllVersionInfo.$(way_)o
372
373 ifneq "$(PACKAGE) $(IS_CBITS_LIB)" "std YES"
374 ifneq "$(PACKAGE)" "rts"
375 SRC_BLD_DLL_OPTS += -lHSstd_cbits_imp -L$(GHC_LIB_DIR)/std/cbits
376 SRC_BLD_DLL_OPTS += -lHSrts_$(way_)imp -L$(GHC_RTS_DIR)
377 ifneq "$(PACKAGE)" "std"
378 ifeq "$(IS_CBITS_LIB)" ""
379 SRC_BLD_DLL_OPTS += -lHSstd_$(way_)imp -L$(GHC_LIB_DIR)/std
380 endif
381 endif
382 endif
383 endif
384
385 SRC_BLD_DLL_OPTS += -lgmp -L. -L$(GHC_RTS_DIR)/gmp
386 ifeq "$(IS_CBITS_LIB)" ""
387 SRC_BLD_DLL_OPTS += $(patsubst %,-lHS%_$(way_)imp, $(PACKAGE_DEPS))
388 SRC_BLD_DLL_OPTS += $(patsubst %,-L../%, $(PACKAGE_DEPS))
389 endif
390 ifneq "$(HAS_CBITS)" ""
391 SRC_BLD_DLL_OPTS += -lHS$(PACKAGE)_cbits_imp -Lcbits
392 endif
393 SRC_BLD_DLL_OPTS += -lwsock32 -lwinmm
394
395 endif # PACKAGE != ""
396
397 SplitObjs = NO
398
399 ifneq "$(LIBRARY)" ""
400
401 all :: DllVersionInfo.$(way_)o
402
403 ifeq "$(DLL_NAME)" ""
404 DLL_NAME = $(patsubst %.a,%.dll,$(subst lib,,$(LIBRARY)))
405 endif
406
407 ifneq "$(DLL_NAME)" ""
408 DLL_NAME := $(DLL_PEN)/$(DLL_NAME)
409 endif
410
411 all :: $(DLL_NAME)
412
413 ifeq "$(DLL_IMPLIB_NAME)" ""
414 DLL_IMPLIB_NAME = $(patsubst %.a,%_imp.a,$(LIBRARY))
415 endif
416
417 $(DLL_NAME) :: $(LIBRARY)
418 $(BLD_DLL) --output-lib $(DLL_IMPLIB_NAME) -o $(DLL_NAME) $(LIBRARY) $(BLD_DLL_OPTS)
419 endif # LIBRARY != ""
420
421 endif # DLLized
422
423 #
424 # Version information is baked into a DLL by having the DLL include DllVersionInfo.o.
425 # The version info contains two user tweakables: DLL_VERSION and DLL_VERSION_NAME.
426 # (both are given sensible defaults though.)
427 #
428 # Note: this will not work as expected with Cygwin B20.1; you need a more recent
429 # version of binutils (to pick up windres bugfixes.)
430
431 ifndef DLL_VERSION
432 DLL_VERSION=$(ProjectVersion)
433 endif
434
435 ifndef DLL_VERSION_NAME
436 DLL_VERSION_NAME="http://www.haskell.org/ghc"
437 endif
438
439 ifndef DLL_DESCRIPTION
440 DLL_DESCRIPTION="A GHC-compiled DLL"
441 endif
442
443 ifndef EXE_VERSION
444 EXE_VERSION=$(ProjectVersion)
445 endif
446
447 ifndef EXE_VERSION_NAME
448 EXE_VERSION_NAME="http://www.haskell.org/ghc"
449 endif
450
451 ifndef EXE_DESCRIPTION
452 EXE_DESCRIPTION="A GHC-compiled binary"
453 endif
454
455 #
456 # Little bit of lo-fi mangling to get at the right set of settings depending
457 # on whether we're generating the VERSIONINFO for a DLL or EXE
458 #
459 DLL_OR_EXE=$(subst VersionInfo.$(way_)rc,,$@)
460 VERSION_FT=$(subst Dll, 0x2L, $(subst Exe, 0x1L, $(DLL_OR_EXE)))
461 VERSION_RES_NAME=$(subst Exe,$(EXE_VERSION_NAME), $(subst Dll, $(DLL_VERSION_NAME),$(DLL_OR_EXE)))
462 VERSION_RES=$(subst Exe,$(EXE_VERSION), $(subst Dll, $(DLL_VERSION),$(DLL_OR_EXE)))
463 VERSION_DESC=$(subst Exe,$(EXE_DESCRIPTION), $(subst Dll, $(DLL_DESCRIPTION),$(DLL_OR_EXE)))
464
465 DllVersionInfo.$(way_)rc ExeVersionInfo.$(way_)rc:
466 $(RM) DllVersionInfo.$(way_)rc
467 echo "1 VERSIONINFO" > $@
468 echo "FILEVERSION 1,0,0,1" >> $@
469 echo "PRODUCTVERSION 1,0,0,1" >> $@
470 echo "FILEFLAGSMASK 0x3fL" >> $@
471 echo "FILEOS 0x4L" >> $@
472 echo "FILETYPE $(VERSION_FT)" >> $@
473 echo "FILESUBTYPE 0x0L" >> $@
474 echo "BEGIN" >> $@
475 echo " BLOCK \"StringFileInfo\"" >> $@
476 echo " BEGIN" >> $@
477 echo " BLOCK \"040904B0\"" >> $@
478 echo " BEGIN" >> $@
479 echo " VALUE \"CompanyName\", \"$(VERSION_RES_NAME)\\0\"" >> $@
480 echo " VALUE \"FileVersion\", \"$(VERSION_RES)\\0\"" >> $@
481 echo " VALUE \"ProductVersion\", \"$(VERSION_RES)\\0\"" >> $@
482 echo " VALUE \"FileDescription\", \"$(VERSION_DESC)\\0\"" >> $@
483 echo " END" >> $@
484 echo " END" >> $@
485 echo " BLOCK \"VarFileInfo\"" >> $@
486 echo " BEGIN" >> $@
487 echo " VALUE \"Translation\", 0x0409, 1200" >> $@
488 echo " END" >> $@
489 echo "END" >> $@
490
491 #----------------------------------------
492 # Script programs
493
494 ifneq "$(SCRIPT_PROG)" ""
495
496 # To produce a fully functional script, you may
497 # have to add some configuration variables at the top of
498 # the script, i.e., the compiler driver needs to know
499 # the path to various utils in the build tree for instance.
500 #
501 # To have the build rule for the script automatically do this
502 # for you, set the variable SCRIPT_SUBST_VARS to the list of
503 # variables you need to put in.
504
505 #
506 # SCRIPT_SUBST creates a string of echo commands that
507 # will when evaluated append the (perl)variable name and its value
508 # to the target it is used for, i.e.,
509 #
510 # A=foo
511 # B=bar
512 # SCRIPT_SUBST_VARS = A B
513 # SCRIPT_SUBST=echo "$""A=\"foo\";" >> $@; echo "$""B=\"bar\";" >> $@
514 #
515 # so if you have a rule like the following
516 #
517 # foo:
518 # @(RM) $@
519 # @(TOUCH) $@
520 # @eval $(SCRIPT_SUBST)
521 #
522 # `make foo' would create a file `foo' containing the following
523 #
524 # % cat foo
525 # $A=foo;
526 # $B=bar;
527 # %
528 #
529 # ToDo: make this work for shell scripts (drop the initial $).
530 #
531 ifeq "$(INTERP)" "$(SHELL)"
532 SCRIPT_SUBST=$(foreach val,$(SCRIPT_SUBST_VARS),"echo \"$(val)=\\\"$($(val))\\\";\" >> $@;")
533 else
534 SCRIPT_SUBST=$(foreach val,$(SCRIPT_SUBST_VARS),"echo \"$$\"\"$(val)=\\\"$($(val))\\\";\" >> $@;")
535 endif
536
537 all :: $(SCRIPT_PROG)
538
539 $(SCRIPT_PROG) : $(SCRIPT_OBJS)
540 $(RM) $@
541 @echo Creating $@...
542 ifeq "$(INTERP)" "perl"
543 echo "#! "$(PERL) > $@
544 else
545 ifneq "$(INTERP)" ""
546 @echo "#!"$(INTERP) > $@
547 else
548 @touch $@
549 endif
550 endif
551 ifneq "$(SCRIPT_PREFIX_FILES)" ""
552 @cat $(SCRIPT_PREFIX_FILES) >> $@
553 endif
554 ifneq "$(SCRIPT_SUBST)" ""
555 @eval $(SCRIPT_SUBST)
556 endif
557 @cat $(SCRIPT_OBJS) >> $@
558 @chmod a+x $@
559 @echo Done.
560 endif
561
562 # ---------------------------------------------------------------------------
563 # Symbolic links
564
565 # links to programs: we sometimes install a program as
566 # <name>-<version> with a link from <name> to the real program.
567
568 ifneq "$(LINK)" ""
569
570 all :: $(LINK)
571
572 CLEAN_FILES += $(LINK)
573
574 ifeq "$(LINK_TARGET)" ""
575 ifneq "$(SCRIPT_PROG)" ""
576 LINK_TARGET = $(SCRIPT_PROG)
577 else
578 ifneq "$(HS_PROG)" ""
579 LINK_TARGET = $(HS_PROG)
580 else
581 ifneq "$(C_PROG)" ""
582 LINK_TARGET = $(C_PROG)
583 else
584 LINK_TARGET = dunno
585 endif
586 endif
587 endif
588 endif
589
590 #
591 # Don't want to overwrite $(LINK)s that aren't symbolic
592 # links. Testing for symbolic links is problematic to do in
593 # a portable fashion using a /bin/sh test, so we simply rely
594 # on perl.
595 #
596 $(LINK) : $(LINK_TARGET)
597 @if ( $(PERL) -e '$$fn="$(LINK)"; exit ((! -f $$fn || -l $$fn) ? 0 : 1);' ); then \
598 echo "Creating a symbolic link from $(LINK_TARGET) to $(LINK)"; \
599 $(RM) $(LINK); \
600 $(LN_S) $(LINK_TARGET) $(LINK); \
601 else \
602 echo "Creating a symbolic link from $(LINK_TARGET) to $(LINK) failed: \`$(LINK)' already exists"; \
603 echo "Perhaps remove \`$(LINK)' manually?"; \
604 exit 1; \
605 fi;
606
607
608 #
609 # install links to script drivers.
610 #
611 install ::
612 @$(INSTALL_DIR) $(bindir)
613 @if ( $(PERL) -e '$$fn="$(bindir)/$(LINK)"; exit ((! -f $$fn || -l $$fn) ? 0 : 1);' ); then \
614 echo "Creating a symbolic link from $(LINK_TARGET) to $(LINK) in $(bindir)"; \
615 $(RM) $(bindir)/$(LINK); \
616 $(LN_S) $(LINK_TARGET) $(bindir)/$(LINK); \
617 else \
618 echo "Creating a symbolic link from $(LINK_TARGET) to $(LINK) in $(bindir) failed: \`$(bindir)/$(LINK)' already exists"; \
619 echo "Perhaps remove \`$(bindir)/$(LINK)' manually?"; \
620 exit 1; \
621 fi;
622
623 endif # LINK
624
625
626 ###########################################
627 #
628 # Targets: install install-strip uninstall
629 #
630 ###########################################
631
632 # For each of these variables that is defined, you
633 # get one install rule
634 #
635 # INSTALL_PROGS executable programs in $(bindir)
636 # INSTALL_SCRIPTS executable scripts in $(bindir)
637 # INSTALL_LIBS platform-dependent libraries in $(libdir) (ranlib'ed)
638 # INSTALL_LIB_SCRIPTS platform-dependent scripts in $(libdir)
639 # INSTALL_LIBEXECS platform-dependent execs in $(libdir)
640 # INSTALL_DATAS platform-independent files in $(datadir)
641 # INSTALL_IFACES platform-dependent interface files in $(ifacedir)
642 #
643 # If the installation directory variable is undefined, the install rule simply
644 # emits a suitable error message.
645 #
646 # Remember, too, that the installation directory variables ($(bindir) and
647 # friends can be overridden from their original settings in mk/config.mk.in
648 # || mk/build.mk
649 #
650 .PHONY: install install-docs installdirs install-strip install-dirs uninstall install-docs show-install
651
652 show-install :
653 @echo "bindir = $(bindir)"
654 @echo "libdir = $(libdir)"
655 @echo "libexecdir = $(libexecdir) # by default, same as libdir"
656 @echo "datadir = $(datadir) # unused for ghc project"
657
658 #
659 # Sometimes useful to separate out the creation of install directories
660 # from the installation itself.
661 #
662 install-dirs ::
663 @$(INSTALL_DIR) $(bindir)
664 @$(INSTALL_DIR) $(libdir)
665 @$(INSTALL_DIR) $(libexecdir)
666 @$(INSTALL_DIR) $(datadir)
667
668 # Better do this first...
669 # but we won't for the moment, do it on-demand from
670 # within the various install targets instead.
671 #install:: install-dirs
672
673 #
674 # Setting user/group ownership for the installed entities
675 #
676 ifneq "$(INSTALL_OWNER)" ""
677 SRC_INSTALL_OPTS += -o $(INSTALL_OWNER)
678 endif
679 ifneq "$(INSTALL_GROUP)" ""
680 SRC_INSTALL_OPTS += -g $(INSTALL_GROUP)
681 endif
682
683
684 ifneq "$(strip $(INSTALL_PROGS))" ""
685
686 #
687 # Here's an interesting one - when using the win32 version
688 # of install (provided via the cygwin toolkit), we have to
689 # supply the .exe suffix, *if* there's no other suffix.
690 #
691 # The rule below does this by ferreting out the suffix of each
692 # entry in the INSTALL_PROGS list. If there's no suffix, use
693 # $(exeext).
694 #
695 INSTALL_PROGS := $(foreach p, $(INSTALL_PROGS), $(addsuffix $(if $(suffix $(p)),,$(exeext)), $(basename $(p))))
696
697 install:: $(INSTALL_PROGS)
698 @$(INSTALL_DIR) $(bindir)
699 @for i in $(INSTALL_PROGS); do \
700 echo $(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i $(bindir); \
701 $(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i $(bindir) ; \
702 if test "$(darwin_TARGET_OS)" = "1"; then \
703 sh $(FPTOOLS_TOP)/mk/fix_install_names.sh $(libdir) $(bindir)/$$i ; \
704 fi ; \
705 done
706 endif
707
708 #
709 # Just like INSTALL_PROGS, but prefix with install sites bin/lib/data and
710 # install without stripping.
711 #
712 ifneq "$(strip $(INSTALL_SCRIPTS))" ""
713 install:: $(INSTALL_SCRIPTS)
714 @$(INSTALL_DIR) $(bindir)
715 for i in $(INSTALL_SCRIPTS); do \
716 $(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i $(bindir); \
717 done
718 endif
719
720 ifneq "$(strip $(INSTALL_LIB_SCRIPTS))" ""
721 install:: $(INSTALL_LIB_SCRIPTS)
722 @$(INSTALL_DIR) $(libdir)
723 for i in $(INSTALL_LIB_SCRIPTS); do \
724 $(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i $(libdir); \
725 done
726 endif
727
728 ifneq "$(strip $(INSTALL_LIBEXEC_SCRIPTS))" ""
729 install:: $(INSTALL_LIBEXEC_SCRIPTS)
730 @$(INSTALL_DIR) $(libexecdir)
731 for i in $(INSTALL_LIBEXEC_SCRIPTS); do \
732 $(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i $(libexecdir); \
733 done
734 endif
735
736 ifneq "$(strip $(INSTALL_LIBS))" ""
737 install:: $(INSTALL_LIBS)
738 @$(INSTALL_DIR) $(libdir)
739 for i in $(INSTALL_LIBS); do \
740 case $$i in \
741 *.a) \
742 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(libdir); \
743 $(RANLIB) $(libdir)/`basename $$i` ;; \
744 *.dll) \
745 $(INSTALL_DATA) -s $(INSTALL_OPTS) $$i $(libdir) ;; \
746 *.so) \
747 $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $(libdir) ;; \
748 *.dylib) \
749 $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $(libdir); \
750 install_name_tool -id $(libdir)/`basename $$i` $(libdir)/`basename $$i` ;; \
751 *) \
752 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(libdir); \
753 esac; \
754 done
755 endif
756
757 ifneq "$(strip $(INSTALL_LIBEXECS))" ""
758 #
759 # See above comment next to defn of INSTALL_PROGS for what
760 # the purpose of this one-liner is.
761 #
762 INSTALL_LIBEXECS := $(foreach p, $(INSTALL_LIBEXECS), $(addsuffix $(subst _,,$(subst __,$(exeext),_$(suffix $(p))_)), $(basename $(p))))
763
764 install:: $(INSTALL_LIBEXECS)
765 @$(INSTALL_DIR) $(libexecdir)
766 -for i in $(INSTALL_LIBEXECS); do \
767 $(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i $(libexecdir); \
768 if test "$(darwin_TARGET_OS)" = "1"; then \
769 sh $(FPTOOLS_TOP)/mk/fix_install_names.sh $(libdir) $(libexecdir)/`basename $$i` ; \
770 fi ; \
771 done
772 endif
773
774 ifneq "$(strip $(INSTALL_DATAS))" ""
775 install:: $(INSTALL_DATAS)
776 @$(INSTALL_DIR) $(datadir)
777 for i in $(INSTALL_DATAS); do \
778 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(datadir); \
779 done
780 endif
781
782 ifneq "$(strip $(INSTALL_IFACES))" ""
783 install:: $(INSTALL_IFACES)
784 @$(INSTALL_DIR) $(ifacedir)
785 for i in $(INSTALL_IFACES); do \
786 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(ifacedir); \
787 done
788 endif
789
790 ifneq "$(strip $(INSTALL_IFACES_WITH_DIRS))" ""
791 install:: $(INSTALL_IFACES_WITH_DIRS)
792 @$(INSTALL_DIR) $(ifacedir)
793 for i in $(INSTALL_IFACES_WITH_DIRS); do \
794 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(ifacedir)/`dirname $$i`; \
795 done
796 endif
797
798 ifneq "$(strip $(INSTALL_INCLUDES))" ""
799 install:: $(INSTALL_INCLUDES)
800 @$(INSTALL_DIR) $(includedir)
801 for i in $(INSTALL_INCLUDES); do \
802 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(includedir); \
803 done
804 endif
805
806 ifneq "$(strip $(INSTALL_DOCS))" ""
807 ifneq "$(XMLDocWays)" ""
808 install-docs:: $(INSTALL_DOCS)
809 @$(INSTALL_DIR) $(datadir)
810 for i in $(INSTALL_DOCS); do \
811 $(INSTALL_DATA) $(INSTALL_OPTS) $$i $(datadir); \
812 done
813 endif
814 endif
815
816 # TODO: The following could be an entry for an Obfuscated Makefile Contest...
817 ifneq "$(strip $(INSTALL_XML_DOC))" ""
818 ifneq "$(XMLDocWays)" ""
819 install-docs:: $(foreach i,$(XMLDocWays),$(INSTALL_XML_DOC)$(patsubst %.html-no-chunks,%.html,$(patsubst %.html,%/index.html,.$(i))))
820 @$(INSTALL_DIR) $(datadir)
821 @for i in $(XMLDocWays); do \
822 if [ $$i = "html" ]; then \
823 $(INSTALL_DIR) $(datadir)/html; \
824 $(INSTALL_DIR) $(datadir)/html/$(INSTALL_XML_DOC); \
825 echo "( cd $(INSTALL_XML_DOC) && $(CP) * $(datadir)/html/$(INSTALL_XML_DOC) )" ; \
826 ( cd $(INSTALL_XML_DOC) && $(CP) * $(datadir)/html/$(INSTALL_XML_DOC) ) ; \
827 else \
828 $(INSTALL_DIR) $(datadir)/doc; \
829 echo $(INSTALL_DATA) $(INSTALL_OPTS) $(INSTALL_XML_DOC)`echo .$$i | sed s/\.html-no-chunks/.html/` $(datadir)/doc; \
830 $(INSTALL_DATA) $(INSTALL_OPTS) $(INSTALL_XML_DOC)`echo .$$i | sed s/\.html-no-chunks/.html/` $(datadir)/doc; \
831 fi; \
832 if [ $$i = "html-no-chunks" ]; then \
833 echo $(CP) $(FPTOOLS_CSS_ABS) $(datadir)/doc; \
834 $(CP) $(FPTOOLS_CSS_ABS) $(datadir)/doc; \
835 fi \
836 done
837 endif
838 endif
839
840 #
841 # Use with care..
842 #
843 uninstall::
844 @for i in $(INSTALL_PROGS) "" ; do \
845 if test "$$i"; then \
846 echo rm -f $(bindir)/`basename $$i`; \
847 rm -f $(bindir)/`basename $$i`; \
848 fi; \
849 done
850 @for i in $(INSTALL_LIBS) ""; do \
851 if test "$$i"; then \
852 echo rm -f $(libdir)/`basename $$i`; \
853 rm -f $(libdir)/`basename $$i`; \
854 fi; \
855 done
856 @for i in $(INSTALL_LIBEXECS) ""; do \
857 if test "$$i"; then \
858 echo rm -f $(libexecdir)/`basename $$i`; \
859 rm -f $(libexecdir)/`basename $$i`; \
860 fi; \
861 done
862 @for i in $(INSTALL_DATAS) ""; do \
863 if test "$$i"; then \
864 echo rm -f $(datadir)/`basename $$i`; \
865 rm -f $(datadir)/`basename $$i`; \
866 fi; \
867 done
868
869 #
870 # install-strip is from the GNU Makefile standard.
871 #
872 ifneq "$(way)" ""
873 install-strip::
874 @$(MAKE) EXTRA_INSTALL_OPTS='-s' install
875 endif
876
877 ##############################################################################
878 #
879 # Targets: check tags show
880 #
881 ##############################################################################
882
883 #------------------------------------------------------------
884 # Check
885
886 .PHONY: check
887
888 check:: $(TESTS)
889 @for i in $(filter-out %.lhs .hs, $(TESTS)) ''; do \
890 if (test -f "$$i"); then \
891 echo Running: `basename $$i` ; \
892 cd test; `basename $$i` ; \
893 fi; \
894 done;
895
896 #------------------------------------------------------------
897 # Tags
898
899 .PHONY: TAGS tags
900
901 tags TAGS:: $(TAGS_HS_SRCS) $(TAGS_C_SRCS)
902 @$(RM) TAGS
903 @touch TAGS
904 ifneq "$(TAGS_HS_SRCS)" ""
905 $(HSTAGS) $(HSTAGS_OPTS) $(TAGS_HS_SRCS)
906 endif
907 ifneq "$(TAGS_C_SRCS)" ""
908 etags -a $(TAGS_C_SRCS)
909 endif
910 @( DEREFFED=`ls -l Makefile | sed -e 's/.*-> \(.*\)/\1/g'` && $(RM) `dirname $$DEREFFED`/TAGS && $(CP) TAGS `dirname $$DEREFFED` ) 2>/dev/null || echo TAGS file generated, perhaps copy over to source tree?
911
912 #------------------------------------------------------------
913 # Makefile debugging
914 # to see the effective value used for a Makefile variable, do
915 # make show VALUE=MY_VALUE
916 #
917
918 show:
919 @echo '$(VALUE)="$($(VALUE))"'
920
921 ################################################################################
922 #
923 # DocBook XML Documentation
924 #
925 ################################################################################
926
927 .PHONY: html html-no-chunks chm HxS fo dvi ps pdf
928
929 ifneq "$(XML_DOC)" ""
930
931 all :: $(XMLDocWays)
932
933 # multi-file XML document: main document name is specified in $(XML_DOC),
934 # sub-documents (.xml files) listed in $(XML_SRCS).
935
936 ifeq "$(XML_SRCS)" ""
937 XML_SRCS = $(wildcard *.xml)
938 endif
939
940 XML_HTML = $(addsuffix /index.html,$(basename $(XML_DOC)))
941 XML_HTML_NO_CHUNKS = $(addsuffix .html,$(XML_DOC))
942 XML_CHM = $(addsuffix .chm,$(XML_DOC))
943 XML_HxS = $(addsuffix .HxS,$(XML_DOC))
944 XML_FO = $(addsuffix .fo,$(XML_DOC))
945 XML_DVI = $(addsuffix .dvi,$(XML_DOC))
946 XML_PS = $(addsuffix .ps,$(XML_DOC))
947 XML_PDF = $(addsuffix .pdf,$(XML_DOC))
948
949 $(XML_HTML) $(XML_NO_CHUNKS_HTML) $(XML_FO) $(XML_DVI) $(XML_PS) $(XML_PDF) :: $(XML_SRCS)
950
951 html :: $(XML_HTML)
952 html-no-chunks :: $(XML_HTML_NO_CHUNKS)
953 chm :: $(XML_CHM)
954 HxS :: $(XML_HxS)
955 fo :: $(XML_FO)
956 dvi :: $(XML_DVI)
957 ps :: $(XML_PS)
958 pdf :: $(XML_PDF)
959
960 CLEAN_FILES += $(XML_HTML_NO_CHUNKS) $(XML_FO) $(XML_DVI) $(XML_PS) $(XML_PDF)
961
962 extraclean ::
963 $(RM) -rf $(XML_DOC).out $(FPTOOLS_CSS) $(basename $(XML_DOC)) $(basename $(XML_DOC))-htmlhelp
964
965 validate ::
966 $(XMLLINT) --valid --noout $(XMLLINT_OPTS) $(XML_DOC).xml
967 endif
968
969 ##############################################################################
970 #
971 # Targets: clean
972 #
973 ##############################################################################
974
975 # we have to be careful about recursion here; since all the clean
976 # targets are recursive, we don't want to make eg. distclean depend on
977 # clean because that would result in far too many recursive calls.
978
979 .PHONY: mostlyclean clean distclean maintainer-clean
980
981 mostlyclean::
982 rm -f $(MOSTLY_CLEAN_FILES)
983
984 # extraclean is used for adding actions to the clean target.
985 extraclean::
986
987 clean:: extraclean
988 rm -f $(MOSTLY_CLEAN_FILES) $(CLEAN_FILES)
989
990 distclean:: extraclean
991 rm -f $(MOSTLY_CLEAN_FILES) $(CLEAN_FILES) $(DIST_CLEAN_FILES)
992
993 maintainer-clean:: extraclean
994 @echo 'This command is intended for maintainers to use; it'
995 @echo 'deletes files that may need special tools to rebuild.'
996 rm -f $(MOSTLY_CLEAN_FILES) $(CLEAN_FILES) $(DIST_CLEAN_FILES) $(MAINTAINER_CLEAN_FILES)
997
998 ################################################################################
999 #
1000 # Way management
1001 #
1002 ################################################################################
1003
1004 # Here is the ingenious jiggery pokery that allows you to build multiple versions
1005 # of a program in a single build tree.
1006 #
1007 # The ways setup requires the following variables to be set:
1008 #
1009 # Expects: $(WAYS) the possible "way" strings to one of
1010 # which $(way) will be set
1011
1012 ifneq "$(way)" ""
1013 ifeq "$(findstring $(way), $(WAYS))" ""
1014 $(error Unknown way $(way))
1015 endif
1016 endif
1017
1018 # So how does $(way) ever get set to anything? Answer, we recursively
1019 # invoke make, setting $(way) on the command line.
1020 # When do we do this recursion? Answer: whenever the programmer
1021 # asks make to make a target that involves a way suffix.
1022 # We must remember *not* to recurse again; but that's easy: we
1023 # just see if $(way) is set:
1024
1025 ifeq "$(way)" ""
1026
1027 # If $(WAYS) = p mc, then WAY_TARGETS expands to
1028 # %.p_lhs %.p_hs %.p_o ... %.mc_lhs %.p_hs ...
1029 # and OTHER_WAY_TARGETS to
1030 # %_p.a %_p %_mc.a %_mc
1031 # where the suffixes are from $(SUFFIXES)
1032 #
1033 # We have to treat libraries and "other" targets differently,
1034 # because their names are of the form
1035 # libHS_p.a and Foo_p
1036 # whereas everything else has names of the form
1037 # Foo.p_o
1038
1039 FPTOOLS_SUFFIXES := o hi hc
1040
1041 WAY_TARGETS = $(foreach way,$(WAYS),$(foreach suffix, $(FPTOOLS_SUFFIXES), %.$(way)_$(suffix)))
1042 LIB_WAY_TARGETS = $(foreach way,$(WAYS),%_$(way).a %_$(way))
1043
1044 # $@ will be something like Foo.p_o
1045 # $(suffix $@) returns .p_o
1046 # $(subst .,.p_o) returns p_o
1047 # $(subst _,.,p_o) returns p.o (clever)
1048 # $(basename p.o) returns p
1049 #
1050 $(WAY_TARGETS) :
1051 $(MAKE) way=$(basename $(subst _,.,$(subst .,,$(suffix $@)))) $@
1052
1053 # $(@F) will be something like libHS_p.a, or Foo_p
1054 # $(basename $(@F)) will be libHS_p, or Foo_p
1055 # The sed script extracts the "p" part.
1056
1057 $(LIB_WAY_TARGETS) :
1058 $(MAKE) $(MFLAGS) $@ way=$(subst .,,$(suffix $(subst _,.,$(basename $@))))
1059
1060 endif # if way
1061
1062 # -------------------------------------------------------------------------
1063 # Object and interface files have suffixes tagged with their ways
1064
1065 ifneq "$(way)" ""
1066 SRC_HC_OPTS += -hisuf $(way_)hi -hcsuf $(way_)hc -osuf $(way_)o
1067 endif
1068
1069 # -------------------------------------------------------------------------
1070 # Rules to invoke the current target recursively for each way
1071
1072 ifneq "$(strip $(WAYS))" ""
1073 ifeq "$(way)" ""
1074
1075 # NB: the targets exclude
1076 # boot runtests
1077 # since these are way-independent
1078 all docs TAGS clean distclean mostlyclean maintainer-clean install ::
1079 @echo "------------------------------------------------------------------------"
1080 @echo "== Recursively making \`$@' for ways: $(WAYS) ..."
1081 @echo "PWD = $(shell pwd)"
1082 @echo "------------------------------------------------------------------------"
1083 # Don't rely on -e working, instead we check exit return codes from sub-makes.
1084 case '${MFLAGS}' in *-[ik]*) x_on_err=0;; *-r*[ik]*) x_on_err=0;; *) x_on_err=1;; esac; \
1085 for i in $(WAYS) ; do \
1086 echo "------------------------------------------------------------------------"; \
1087 echo "== $(MAKE) way=$$i $@;"; \
1088 echo "PWD = $(shell pwd)"; \
1089 echo "------------------------------------------------------------------------"; \
1090 $(MAKE) way=$$i --no-print-directory $(MFLAGS) $@ ; \
1091 if [ $$? -eq 0 ] ; then true; else exit $$x_on_err; fi; \
1092 done
1093 @echo "------------------------------------------------------------------------"
1094 @echo "== Finished recursively making \`$@' for ways: $(WAYS) ..."
1095 @echo "PWD = $(shell pwd)"
1096 @echo "------------------------------------------------------------------------"
1097
1098 endif
1099 endif
1100
1101
1102 ##################################################################
1103 #
1104 # Recursive stuff
1105 #
1106 # This was once at the top of the file, allegedly because it was
1107 # needed for some targets, e.g. when building DLLs in libraries. But
1108 # since this reason is a little short on information, and I'm having
1109 # trouble with subdirectory builds happening before the current
1110 # directory when building hslibs (bad interaction with including
1111 # _hsc.o files in the cbits lib) so I'm moving the recursive makes to
1112 # the end --SDM 12/12/2001
1113 #
1114 ##################################################################
1115
1116 # Here are the diabolically clever rules that
1117 #
1118 # (a) for each "recursive target" <t>
1119 # propagates "make <t>" to directories in SUBDIRS
1120 #
1121 # (b) when SUBDIRS is empty,
1122 # for each "multi-way-target" <t>
1123 # calls "make way=w <t>" for each w in $(WAYS)
1124 #
1125 # This has the effect of making the standard target
1126 # in each of the specified ways (as well as in the normal way
1127
1128 # Controlling variables
1129 # WAYS = extra (beyond the normal way) ways to build things in
1130 # SUBDIRS = subdirectories to recurse into
1131
1132 # No ways, so iterate over the SUBDIRS
1133
1134 # note about recursively invoking make: we'd like make to drop all the
1135 # way back to the top level if it fails in any of the
1136 # sub(sub-...)directories. This is done by setting the -e flag to the
1137 # shell during the loop, which causes an immediate failure if any of
1138 # the shell commands fail.
1139
1140 # One exception: if the user gave the -i or -k flag to make in the
1141 # first place, we'd like to reverse this behaviour. So we check for
1142 # these flags, and set the -e flag appropriately. NOTE: watch out for
1143 # the --no-print-directory flag which is passed to recursive
1144 # invocations of make.
1145 #
1146 ifeq "$(way)" ""
1147 ifneq "$(SUBDIRS)" ""
1148
1149 # we override the 'boot', 'all' and 'install' targets in the top
1150 # level Makefile. Some of the sub-projects also set 'boot' to empty.
1151
1152 ifeq "$(NO_ALL_TARGET)" "YES"
1153 ALL_TARGET =
1154 else
1155 ALL_TARGET = all
1156 endif
1157
1158 ifeq "$(NO_BOOT_TARGET)" "YES"
1159 BOOT_TARGET =
1160 else
1161 BOOT_TARGET = boot
1162 endif
1163
1164 ifeq "$(NO_INSTALL_TARGET)" "YES"
1165 INSTALL_TARGET =
1166 INSTALL_DOCS_TARGET =
1167 else
1168 INSTALL_TARGET = install
1169 INSTALL_DOCS_TARGET = install-docs
1170 endif
1171
1172 $(ALL_TARGET) docs runtests $(BOOT_TARGET) TAGS clean distclean mostlyclean maintainer-clean $(INSTALL_TARGET) $(INSTALL_DOCS_TARGET) html chm HxS ps dvi txt::
1173 @echo "------------------------------------------------------------------------"
1174 @echo "== Recursively making \`$@' in $(SUBDIRS) ..."
1175 @echo "PWD = $(shell pwd)"
1176 @echo "------------------------------------------------------------------------"
1177 # Don't rely on -e working, instead we check exit return codes from sub-makes.
1178 @case '${MFLAGS}' in *-[ik]*) x_on_err=0;; *-r*[ik]*) x_on_err=0;; *) x_on_err=1;; esac; \
1179 for i in $(SUBDIRS); do \
1180 echo "------------------------------------------------------------------------"; \
1181 echo "== $(MAKE) $@ $(MFLAGS);"; \
1182 echo " in $(shell pwd)/$$i"; \
1183 echo "------------------------------------------------------------------------"; \
1184 $(MAKE) --no-print-directory -C $$i $(MFLAGS) $@; \
1185 if [ $$? -eq 0 -o $$x_on_err -eq 0 ] ; then true; else exit 1; fi; \
1186 done
1187 @echo "------------------------------------------------------------------------"
1188 @echo "== Finished making \`$@' in $(SUBDIRS) ..."
1189 @echo "PWD = $(shell pwd)"
1190 @echo "------------------------------------------------------------------------"
1191
1192 endif
1193 endif
1194
1195 #
1196 # Selectively building subdirectories.
1197 #
1198 #
1199 ifneq "$(SUBDIRS)" ""
1200 $(SUBDIRS) ::
1201 $(MAKE) -C $@ $(MFLAGS)
1202 endif
1203
1204 # -----------------------------------------------------------------------------
1205 # Further cleaning
1206
1207 # Sometimes we want to clean things only after the recursve cleaning
1208 # has heppened (eg. if the files we're about to remove would affect
1209 # the recursive traversal).
1210
1211 distclean::
1212 rm -f $(LATE_DIST_CLEAN_FILES)
1213
1214 maintainer-clean::
1215 rm -f $(LATE_DIST_CLEAN_FILES)
1216