1 # Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Library General Public License as
6 # published by the Free Software Foundation; either version 2 of the
7 # License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Library General Public License for more details.
14 # You should have received a copy of the GNU Library General Public
15 # License along with the GNU C Library; see the file COPYING.LIB. If not,
16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 # Boston, MA 02111-1307, USA.
20 # Makefile configuration options for the GNU C library.
23 This makefile requires GNU Make.
26 all: # Make this the default goal
28 ifneq "$(origin +included-Makeconfig)" "file"
30 +included-Makeconfig := yes
36 # If config.make exists, the source directory was configured,
37 # so don't try to be clever and find another directory to build in.
38 ifneq (,$(wildcard $(..)config.make))
41 else # Not configured.
49 # Directory for object files and libc.a. If this is not defined, the
50 # object files live in the subdirectories where their sources live, and
51 # libc.a lives in the parent directory (this probably doesn't work any
54 ifeq ($(filter /%,$(ARCH)),)
55 objdir := $(..)$(ARCH)
61 # $(common-objdir) is the place to put objects and
62 # such that are not specific to a single subdir.
64 objpfx := $(patsubst %//,%/,$(objdir)/$(subdir)/)
65 common-objpfx = $(objdir)/
66 common-objdir = $(objdir)
73 # This is a kludge. make wizards might grok.
74 common-objpfx = sysdeps/../
79 # Root of the sysdeps tree.
80 sysdep_dir := $(..)sysdeps
81 export sysdep_dir := $(sysdep_dir)
83 # Get the values defined by options to `configure'.
84 include $(common-objpfx)config.make
86 # We have a special subdir for each binary format.
87 # For now, only ELF is fully supported.
91 # This is probably better than nothing.
95 # Complete path to sysdep dirs.
96 export full-config-sysdirs := $(addprefix $(..),$(config-sysdirs))
98 # Run config.status to update config.make and config.h. We don't show the
99 # dependence of config.h to Make, because it is only touched when it
100 # changes and so config.status would be run every time; the dependence of
101 # config.make should suffice to force regeneration and re-exec, and the new
102 # image will notice if config.h changed.
103 $(common-objpfx)config.make: $(common-objpfx)config.status \
104 $(..)config.make.in $(..)config.h.in
105 cd $(<D); $(SHELL) $(<F)
107 # Find all the sysdeps configure fragments, to make sure we re-run
108 # configure when any of them changes.
109 $(common-objpfx)config.status: $(..)version.h $(..)configure \
110 $(foreach dir,$(full-config-sysdirs),\
114 $(firstword $(wildcard \
115 $(addprefix $(dir)/,configure configure.in)))))
116 @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
117 echo The GNU C library has not been configured. >&2; \
118 echo Run \`configure\' to configure it before building. >&2; \
119 echo Try \`configure --help\' for more details. >&2; \
122 # We don't want CPPFLAGS to be exported to the command running configure.
125 # Get the user's configuration parameters.
126 ifneq ($(wildcard $(..)configparms),)
127 include $(..)configparms
130 ifneq ($(wildcard $(common-objpfx)configparms),)
131 include $(common-objpfx)configparms
136 #### These are the configuration variables. You can define values for
137 #### the variables below in the file `configparms'.
138 #### Do NOT edit this file.
142 # Set this to either `stdio' or `libio', to compile in either GNU stdio
148 # Common prefix for machine-independent installation directories.
149 ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value.
153 # Decide whether we shall build the programs or not. We always do this
154 # unless the user tells us (in configparms) or we are building for a
156 ifndef build-programs
157 ifneq ($(config-os),none)
164 # Common prefix for machine-dependent installation directories.
165 ifeq ($(origin exec_prefix),undefined)
166 exec_prefix = $(prefix)
169 # Where to install the library and object files.
171 libdir = $(exec_prefix)/lib
173 inst_libdir = $(install_root)$(libdir)
175 # Where to install the shared library and dynamic linker.
177 slibdir = $(exec_prefix)/lib
179 inst_slibdir = $(install_root)$(slibdir)
181 # Prefix to put on files installed in $(libdir). For libraries `libNAME.a',
182 # the prefix is spliced between `lib' and the name, so the linker switch
183 # `-l$(libprefix)NAME' finds the library; for other files the prefix is
184 # just prepended to the whole file name.
185 ifeq ($(origin libprefix),undefined)
189 # Where to install the header files.
191 includedir = $(exec_prefix)/include
193 inst_includedir = $(install_root)$(includedir)
195 # Where to install machine-independent data files.
196 # These are the timezone database, and the locale database.
198 datadir = $(prefix)/share
200 inst_datadir = $(install_root)$(datadir)
202 # Where to install the timezone data files (which are machine-independent).
204 zonedir = $(datadir)/zoneinfo
206 inst_zonedir = $(install_root)$(zonedir)
208 # Where to install the locale and message catalog data files (which are
209 # machine-independent).
211 localedir = $(datadir)/locale
213 inst_localedir = $(install_root)$(localedir)
215 # Where to install the locale charmap source files.
217 i18ndir = $(datadir)/i18n
219 inst_i18ndir = $(install_root)$(i18ndir)
221 # Where to install the shared object for charset transformation.
223 gconvdir = $(libdir)/gconv
225 inst_gconvdir = $(install_root)$(gconvdir)
227 # Where to install programs.
229 bindir = $(exec_prefix)/bin
231 inst_bindir = $(install_root)$(bindir)
233 # Where to install internal programs.
235 libexecdir = $(exec_prefix)/libexec
237 inst_libexecdir = $(install_root)$(libexecdir)
239 # Where to install administrative programs.
241 rootsbindir = $(exec_prefix)/sbin
243 inst_rootsbindir = $(install_root)$(rootsbindir)
246 sbindir = $(exec_prefix)/sbin
248 inst_sbindir = $(install_root)$(sbindir)
250 # Where to install the Info files.
252 infodir = $(prefix)/info
254 inst_infodir = $(install_root)$(infodir)
256 # Where to install default configuration files. These include the local
257 # timezone specification and network data base files.
259 sysconfdir = $(prefix)/etc
261 inst_sysconfdir = $(install_root)$(sysconfdir)
263 # What timezone should be the installed default (e.g., US/Eastern).
264 # Run `make -C time echo-zonenames' to see a list of available zone names.
265 # The local timezone can be changed with `zic -l TIMEZONE' at any time.
270 # Where to install the "localtime" timezone file; this is the file whose
271 # contents $(localtime) specifies. If this is a relative pathname, it is
272 # relative to $(zonedir). It is a good idea to put this somewhere
273 # other than there, so the zoneinfo directory contains only universal data,
274 # localizing the configuration data elsewhere.
275 ifndef localtime-file
276 localtime-file = $(sysconfdir)/localtime
277 inst_localtime-file = $(install_root)$(localtime-file)
280 # What to use for leap second specifications in compiling the default
281 # timezone files. Set this to `/dev/null' for no leap second handling as
282 # 1003.1 requires, or to `leapseconds' for proper leap second handling.
283 # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'.
284 # This variable determines the default: if it's `/dev/null',
285 # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE.
287 leapseconds = /dev/null
290 # What timezone's DST rules should be used when a POSIX-style TZ
291 # environment variable doesn't specify any rules. For 1003.1 compliance
292 # this timezone must use rules that are as U.S. federal law defines DST.
293 # Run `make -C time echo-zonenames' to see a list of available zone names.
294 # This setting can be changed with `zic -p TIMEZONE' at any time.
295 # If you want POSIX.1 compatibility, use `America/New_York'.
297 posixrules = America/New_York
300 # Where to install the "posixrules" timezone file; this is file
301 # whose contents $(posixrules) specifies. If this is a relative
302 # pathname, it is relative to $(zonedir).
303 ifndef posixrules-file
304 posixrules-file = posixrules
308 # Directory where your system's native header files live.
309 # This is used on Unix systems to generate some GNU libc header files.
311 sysincludedir = /usr/include
315 # Commands to install files.
317 INSTALL_DATA = $(INSTALL) -m 644
319 ifndef INSTALL_PROGRAM
320 INSTALL_PROGRAM = $(INSTALL)
327 # The name of the C compiler.
328 # If you've got GCC, and it works, use it.
329 ifeq ($(origin CC),default)
333 # The name of the C compiler to use for compilations of programs to run on
334 # the host that is building the library. If you set CC to a
335 # cross-compiler, you must set this to the normal compiler.
340 # Default flags to pass the C compiler.
341 ifndef default_cflags
342 default_cflags := -g -O
345 # Flags to pass the C compiler when assembling preprocessed assembly code
346 # (`.S' files). On some systems the assembler doesn't understand the `#' line
347 # directives the preprocessor produces. If you have troubling compiling
348 # assembly code, try using -P here to suppress these directives.
353 # ELF always supports init/fini sections
358 # Installed name of the startup code.
359 ifneq ($(have-initfini),yes)
360 # When not having init/fini, there is just one startfile, called crt0.o.
361 start-installed-name = crt0.o
363 # On systems having init/fini, crt0.o is called crt1.o, and there are
364 # some additional bizarre files.
365 start-installed-name = crt1.o
369 # Command for linking programs with the C library.
371 +link = $(CC) -nostdlib -nostartfiles -o $@ \
372 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) \
373 $(addprefix $(csu-objpfx),$(start-installed-name)) \
374 $(+preinit) $(+prector) \
375 $(filter-out $(addprefix $(csu-objpfx),start.o \
376 $(start-installed-name))\
377 $(+preinit) $(link-extra-libs) \
378 $(common-objpfx)libc% $(+postinit),$^) \
379 $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit)
381 # Command for statically linking programs with the C library.
383 +link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
384 $(sysdep-LDFLAGS) $(LDFLAGS) \
385 $(addprefix $(csu-objpfx),$(start-installed-name)) \
386 $(+preinit) $(+prector) \
387 $(filter-out $(addprefix $(csu-objpfx),start.o \
388 $(start-installed-name))\
389 $(+preinit) $(link-extra-libs-static) \
390 $(common-objpfx)libc% $(+postinit),$^) \
391 $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit)
393 ifndef config-LDFLAGS
394 ifeq (yes,$(build-shared))
395 config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name)
399 ifeq (yes,$(build-shared))
400 # We need the versioned name of libc.so in the deps of $(others) et al
401 # so that the symlink to libc.so is created before anything tries to
402 # run the linked programs.
403 link-libc = -Wl,-rpath-link=$(rpath-link) \
404 $(common-objpfx)libc.so$(libc.so-version) \
405 $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
406 # Choose the default search path for the dynamic linker based on
407 # where we will install libraries.
408 ifneq ($(libdir),$(slibdir))
409 default-rpath = $(slibdir):$(libdir)
411 default-rpath = $(libdir)
413 # This is how to find at build-time things that will be installed there.
414 rpath-dirs = math elf nss nis db2 rt resolv
416 $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%)))
417 elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf)
418 dbobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)db2)
420 link-libc = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
424 ifndef link-extra-libs
425 ifeq (yes,$(build-shared))
426 ifneq ($(common-objpfx),$(objpfx))
427 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\
428 $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \
429 $(objpfx)$(lib).so$($(notdir $(lib)).so-version)))
431 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version))
434 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
438 # The static libraries.
439 ifeq (yes,$(build-static))
440 link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
441 link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
443 ifeq (yes,$(build-shared))
444 # We can try to link the programs with lib*_pic.a...
445 link-libc-static = $(link-libc) $(common-objpfx)libc_pic.a
446 link-extra-libs-static = $(link-extra-libs)
454 +preinit = $(addprefix $(csu-objpfx),crti.o)
455 +postinit = $(addprefix $(csu-objpfx),crtn.o)
456 +prector = `$(CC) --print-file-name=crtbegin.o`
457 +postctor = `$(CC) --print-file-name=crtend.o`
458 +interp = $(addprefix $(elf-objpfx),interp.os)
460 csu-objpfx = $(common-objpfx)csu/
461 elf-objpfx = $(common-objpfx)elf/
463 # How to run a program we just linked with our library.
464 # The program binary is assumed to be $(word 2,$^).
465 built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^))
466 ifneq (yes,$(build-shared))
467 built-program-cmd = $(built-program-file)
470 sysdep-library-path = \
471 $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
472 $(filter -Wl$(comma)-rpath-link=%,\
473 $(sysdep-LDFLAGS)))))
474 define built-program-cmd
475 $(elf-objpfx)$(rtld-installed-name) \
476 --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
477 $(built-program-file)
489 # Extra flags to pass to GCC.
490 +gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes
492 # This is the program that generates makefile
493 # dependencies from C source files.
498 # The program that makes Emacs-style TAGS files.
501 # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
502 # perhaps others) to preprocess assembly code in some cases.
505 # To force installation of files even if they are older than the
506 # installed files. This variable is included in the dependency list
507 # of all installation targets.
508 ifeq ($(force-install),yes)
509 +force = force-install
515 #### End of configuration variables.
518 # This tells some versions of GNU make before 3.63 not to export all variables.
521 # We want to echo the commands we're running without
522 # umpteen zillion filenames along with it (we use `...' instead)
523 # but we don't want this echoing done when the user has said
524 # he doesn't want to see commands echoed by using -s.
525 ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s
526 +cmdecho := echo >/dev/null
531 # These are the flags given to the compiler to tell
532 # it what sort of optimization and/or debugging output to do.
534 # If `CFLAGS' was defined, use that.
536 +cflags := $(filter-out -I%,$(CFLAGS))
540 # If none of the above worked, default to "-g -O".
541 ifeq "$(strip $(+cflags))" ""
542 +cflags := $(default_cflags)
543 endif # $(+cflags) == ""
545 +cflags := $(+cflags) $(+gccwarn)
548 # Don't duplicate options if we inherited variables from the parent.
549 +cflags := $(sort $(+cflags))
552 # These are flags given to the C compiler to tell it to look for include
553 # files (including ones given in angle brackets) in the current directory,
554 # in the parent library source directory and in the include directory.
555 # `+sysdep-includes' will be defined by Makerules.
556 +includes = -I$(..)include -I. \
557 $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \
558 $($(stdio)-include) $(includes) \
559 $(+sysdep-includes) $(last-includes) $(sysincludes)
561 # Since libio has several internal header files, we use a -I instead
562 # of many little headers in the include directory.
563 libio-include = -I$(..)libio
565 # These are the variables that the implicit compilation rules use.
566 CPPFLAGS = $($(subdir)-CPPFLAGS) $(+includes) $(defines) \
567 -include $(..)include/libc-symbols.h $(sysdep-CPPFLAGS) \
568 $(CPPFLAGS-$(suffix $@)) $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F))
569 override CFLAGS = $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \
570 $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F))
572 # If everything is compiled with -fPIC (implicitly) we must tell this by
573 # defining the PIC symbol.
574 ifeq (yes,$(build-pic-default))
578 # Enable object files for different versions of the library.
579 # Various things use $(object-suffixes) to know what all to make.
580 # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
581 # to pass different flags for each flavor.
582 libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
583 all-object-suffixes := .o .os .op .og .ob .oS
585 CPPFLAGS-.o = $(pic-default)
586 CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
587 ifeq (yes,$(build-static))
589 object-suffixes += .o
591 ifeq (yes,$(build-shared))
592 # Under --enable-shared, we will build a shared library of PIC objects.
593 # The PIC object files are named foo.os.
594 object-suffixes += .os
596 CFLAGS-.os = $(filter %frame-pointer,$(+cflags)) $(pic-ccflag)
597 libtype.os := lib%_pic.a
598 # This can be changed by a sysdep makefile
601 ifeq (yes,$(build-profile))
602 # Under --enable-profile, we will build a static library of profiled objects.
603 # The profiled object files are named foo.op.
604 object-suffixes += .op
605 CPPFLAGS-.op = -DPROF $(pic-default)
607 libtype.op = lib%_p.a
609 ifeq (yes,$(build-omitfp))
610 # Under --enable-omitfp, we build an the library optimized without
611 # debugging information using -fomit-frame-pointer, and build an extra
612 # library with debugging information. The debuggable objects are named foo.og.
613 object-suffixes += .og
614 CPPFLAGS-.og = $(pic-default)
616 CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
617 CFLAGS-.os += -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
618 libtype.og = lib%_g.a
620 ifeq (yes,$(build-bounded))
621 # Under --enable-bounded, we build the library with `-fbounded-pointers -g'
622 # to runtime bounds checking. The bounded-pointer objects are named foo.ob.
623 object-suffixes += .ob
624 CPPFLAGS-.ob = -DBOUNDED_POINTERS $(pic-default)
625 CFLAGS-.ob = -g -fbounded-pointers
626 libtype.ob = lib%_b.a
629 object-suffixes-for-libc := $(object-suffixes)
631 ifeq (yes,$(build-shared))
632 # Build special library that contains the static-only routines for libc.
633 object-suffixes-for-libc += .oS
635 # Must build the routines as PIC, though, because they can end up in (users')
636 # shared objects. We don't want to use CFLAGS-os because users may, for
637 # example, make that processor-specific.
638 CFLAGS-.oS = $(CFLAGS-.o) $(pic-ccflag)
639 CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC
640 libtype.oS = lib%_nonshared.a
644 +gnu-stabs = $(shell echo>&2 '*** BARF ON ME')
650 move-if-change = $(SHELL) $(..)scripts/move-if-change
653 ifeq (yes, $(build-shared))
655 # Process the shlib-versions file, which tells us what shared library
656 # version numbers to use when we install shared objects on this system.
657 -include $(common-objpfx)soversions.mk
658 ifndef avoid-generated
659 $(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makeconfig \
660 $(wildcard $(patsubst %, $(..)%/shlib-versions,\
662 $(common-objpfx)config.make
663 (file="$(wildcard $(patsubst %,$(..)%/shlib-versions,$(add-ons))) \
664 $(..)shlib-versions"; \
665 for f in $$file; do \
666 sed 's/#.*$$//' $$f | while read conf versions; do \
667 test -n "$$versions" && \
668 test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
669 : "$$conf"` != 0 || continue; \
670 for v in $$versions; do \
671 lib=`echo $$v | sed 's/=.*$$//'`; \
672 if eval "test -z \"\$$vers_lib$$lib\""; then \
673 eval vers_lib$${lib}=yes; \
674 number=`echo $$v | sed "s/^.*=//"`; \
676 [0-9]*) echo "$$lib.so-version=.$$number"; \
677 echo "all-sonames+=$$lib.so\$$($$lib.so-version)";;\
678 *) echo "$$lib.so-version=$$number"; \
679 echo "all-sonames+=\$$($$lib.so-version)";; \
688 postclean-generated += soversions.mk
690 # Generate the header containing the names of all shared libraries.
691 # We use a stamp file to avoid uncessary recompilations.
692 before-compile += $(common-objpfx)gnu/lib-names.h
693 $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @:
694 $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
695 $(make-target-directory)
696 @rm -f ${@:stmp=T} $@
697 (echo '/* This file is automatically generated.';\
698 echo ' It defines macros to allow user program to find the shared';\
699 echo ' library files which come as part of GNU libc. */';\
700 echo '#ifndef __GNU_LIB_NAMES_H'; \
701 echo '#define __GNU_LIB_NAMES_H 1'; \
703 (libs='$(all-sonames)';\
704 for l in $$libs; do \
705 upname=`echo $$l | sed 's/[.]so.*//' | \
706 tr 'abcdefghijklmnopqrstuvwxyz-' \
707 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
708 echo "#define $${upname}_SO \"$$l\""; \
711 echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T}
712 $(move-if-change) ${@:stmp=T} ${@:stmp=h}
715 common-generated += gnu/lib-names.h gnu/lib-names.stmp
717 # The name under which the run-time dynamic linker is installed.
718 # We are currently going for the convention that `/lib/ld.so.1'
719 # names the SVR4/ELF ABI-compliant dynamic linker.
720 ifndef rtld-installed-name
722 rtld-installed-name = $(ld.so-version)
724 rtld-installed-name = ld.so.1
728 ifndef rtld-version-installed-name
729 rtld-version-installed-name = ld-$(version).so
734 ifneq (,$(findstring linuxthreads,$(add-ons)))
735 shared-thread-library = $(common-objpfx)linuxthreads/libpthread.so
736 static-thread-library = $(common-objpfx)linuxthreads/libpthread.a
737 have-thread-library = yes
738 rpath-dirs += linuxthreads
741 ifndef avoid-generated
742 -include $(common-objpfx)sysd-dirs
747 sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
750 # These are the subdirectories containing the library source.
751 all-subdirs = csu assert ctype db2 locale intl catgets math setjmp signal \
752 stdlib stdio-common $(stdio) malloc string wcsmbs time dirent \
753 grp pwd posix io termios resource misc socket sysvipc gmon \
754 gnulib iconv iconvdata wctype manual shadow md5-crypt po argp \
755 $(add-ons) nss localedata timezone rt debug $(sysdep-subdirs) \
757 subdirs = $(all-subdirs)
759 # The mach and hurd subdirectories have many generated header files which
760 # much of the rest of the library depends on, so it is best to build them
761 # first (and mach before hurd, at that). The before-compile additions in
762 # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
763 # not to exist when making in other directories, but it will be slower that
764 # way with more somewhat expensive `make' invocations.
765 subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
766 $(filter-out mach hurd,$(subdirs))
768 all-Subdirs-files = $(wildcard $(config-sysdirs:%=$(..)%/Subdirs))
769 $(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files)
770 (echo define sysdep-subdirs; \
771 sed 's/#.*$$//' $(all-Subdirs-files) /dev/null; \
773 echo 'sysd-dirs-done = t'; \
777 endif # Makeconfig not yet included