[thirdparty/glibc.git] / Makefile

# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
# This file is part of the GNU C Library.

# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.

# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.

# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB.  If
# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
# Cambridge, MA 02139, USA.

#
#	Master Makefile for the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif


# This is the default target; it makes everything except the tests.
.PHONY: all
all: lib others
\f
define autoconf-it
autoconf $(ACFLAGS) $< > $@.new
mv -f $@.new $@
test -d CVS && cvs commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
endef

configure: configure.in; $(autoconf-it)
%/configure: %/configure.in; $(autoconf-it)

include Makeconfig

ifndef avoid-generated
include $(objpfx)sysd-dirs
define \n


endef
sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
endif

# These are the subdirectories containing the library source.
subdirs := csu assert ctype locale math setjmp signal stdio stdlib	\
	   malloc string time dirent grp pwd posix io termios resource	\
	   socket misc gnulib $(wildcard crypt) manual			\
	   $(sysdep-subdirs) elf
export subdirs := $(subdirs)	# Benign, useless in GNU make before 3.63.

# The mach and hurd subdirectories have many generated header files which
# the much of rest of the library depends on, so it is best to build them
# first (and mach before hurd, at that).  The before-compile additions in
# sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
# not to exist when making in other directories, but it will be slower that
# way with more somewhat expensive `make' invocations.
subdirs	:= $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
	   $(filter-out mach hurd,$(subdirs))

# All initialization source files.
+subdir_inits	:= $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
# All subdirectories containing initialization source files.
+init_subdirs	:= $(patsubst %/,%,$(dir $(+subdir_inits)))


# These are the targets that are made by making them in each subdirectory.
+subdir_targets	:= subdir_lib objects objs others subdir_mostlyclean	\
		   subdir_clean subdir_distclean subdir_realclean	\
		   tests subdir_lint.out				\
		   subdir_echo-headers subdir_echo-distinfo		\
		   subdir_install $(addprefix install-,			\
					      no-libc.a bin lib		\
					      data headers others)
\f
headers := features.h errno.h sys/errno.h errnos.h limits.h
aux	 = sysdep $(libc-init) version

echo-headers: subdir_echo-headers

# What to install.
install-others = $(includedir)/stubs.h

ifeq (yes,$(gnu-ld))
libc-init = set-init
else
libc-init = munch-init
$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
	awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
	mv -f $@-t $@
generated := $(generated) munch-init.c
endif


include Makerules

# Install from subdirectories too.
install: subdir_install

# Build subdirectory lib objects.
lib-noranlib: subdir_lib

ifeq (yes,$(build-shared))
# Build the shared object from the PIC object library.
lib: $(common-objpfx)libc.so
endif

$(objpfx)sysd-dirs: $(+sysdir_pfx)config.make
	(echo define sysdep-subdirs;					      \
	 for dir in $(sysdirs); do					      \
	   if [ -r $(sysdep_dir)/$$dir/Subdirs ]; then			      \
	     sed 's/#.*$$//' $(sysdep_dir)/$$dir/Subdirs;		      \
	   else true;							      \
	   fi;								      \
	 done;								      \
	 echo endef) > $@-tmp
	 mv -f $@-tmp $@
\f
# Makerules creates a file `stub-$(subdir)' for each subdirectory, which
# contains `#define __stub_FUNCTION' for each function which is a stub.
# Here we paste all of these together into <stubs.h>.

subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))

# Since stubs.h is never needed when building the library, we simplify the
# hairy installation process by producing it in place only as the last part
# of the top-level `make install'.  It depends on subdir_install, which
# iterates over all the subdirs; subdir_install in each subdir depends on
# the subdir's stubs file.  Having more direct dependencies would result in
# extra iterations over the list for subdirs and many recursive makes.
$(includedir)/stubs.h: subdir_install
	@rm -f $(objpfx)stubs.h
	(echo '/* This file is automatically generated.';\
	 echo '   It defines a symbol `__stub_FUNCTION'\'' for each function';\
	 echo '   in the C library which is a stub, meaning it will fail';\
	 echo '   every time called, usually setting errno to ENOSYS.  */';\
	 sort $(subdir-stubs)) > $(objpfx)stubs.h
	$(INSTALL_DATA) $(objpfx)stubs.h $@
	rm -f $(objpfx)stubs.h
\f
# This makes the Info or DVI file of the documentation from the Texinfo source.
.PHONY: info dvi
info dvi:
	$(MAKE) -C manual $@
\f
# This makes all the subdirectory targets.

# For each target, make it depend on DIR/target for each subdirectory DIR.
$(+subdir_targets): %: $(addsuffix /%,$(subdirs))

# Compute a list of all those targets.
all-subdirs-targets := $(foreach dir,$(subdirs),\
				 $(addprefix $(dir)/,$(+subdir_targets)))

# The action for each of those is to cd into the directory and make the
# target there.
$(all-subdirs-targets):
	$(MAKE) -C $(@D) $(@F)

.PHONY: $(+subdir_targets) $(all-subdirs-targets)
\f
# Targets to clean things up to various degrees.

.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean

# Subroutines of all cleaning targets.
parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
	-rm -f $(common-objpfx)libc.a $(addprefix $(objpfx),$(install-lib))
parent-clean: parent-mostlyclean common-clean
	-rm -f $(addprefix $(common-objpfx),$(common-generated))
	-rm -f $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules)

clean: parent-clean
# This is done this way rather than having `subdir_clean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
	@$(MAKE) subdir_clean no_deps=t
mostlyclean: parent-mostlyclean
	@$(MAKE) subdir_mostlyclean no_deps=t

# The realclean target is just like distclean for the parent, but we want
# the subdirs to know the difference in case they care.
realclean distclean: parent-clean
# This is done this way rather than having `subdir_distclean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
	@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes

# Subroutine of distclean and realclean.
distclean-1: subdir_$(distclean-1)
	-rm -f $(config-generated)
	-rm -f $(addprefix $(objpfx),config.status cache.cache)
	-rm -f $(addprefix $(objpfx),config.make config-name.h)
ifdef objdir
	-rm -f $(objpfx)Makefile
endif
	-rm -f $(sysdep-$(distclean-1))
\f
.PHONY: echo_subdirs
echo_subdirs:;@echo '$(subdirs)'

.PHONY: echo-distinfo parent_echo-distinfo
echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
parent_echo-distinfo:
	@echo $(addprefix +header+,$(headers)) \
	      $(addprefix +nodist+,$(generated))
\f
# Make the distribution tarfile.

distribute  := README INSTALL NOTES COPYING.LIB COPYING NEWS		\
	       ChangeLog ChangeLog.[0-9]				\
	       Makefile Makeconfig Makerules Rules Make-dist MakeTAGS	\
	       extra-lib.mk o-iterator.mk				\
	       ansidecl.h mkinstalldirs move-if-change install-sh	\
	       configure configure.in aclocal.m4 config.sub config.guess\
	       config.make.in config-name.in Makefile.in		\
	       munch-tmpl.c munch.awk sysdep.h set-hooks.h libc-symbols.h

distribute := $(strip $(distribute))
generated := $(generated) stubs.h

README: README.template version.c ; # Make-dist should update README.

define format-me
@rm -f $@
makeinfo --no-validate --no-warn --no-headers $< -o $@
-chmod a-w $@
endef
INSTALL: manual/maint.texi; $(format-me)
NOTES: manual/creature.texi; $(format-me)
Commit	Line	Data
28f540f4 RM	1	# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
	2	# This file is part of the GNU C Library.
	3
	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.
	8
	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.
	13
	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
	16	# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
	17	# Cambridge, MA 02139, USA.
	18
	19	#
	20	# Master Makefile for the GNU C library
	21	#
	22	ifneq (,)
	23	This makefile requires GNU Make.
	24	endif
	25
	26
	27	# This is the default target; it makes everything except the tests.
	28	.PHONY: all
	29	all: lib others
	30	\f
	31	define autoconf-it
	32	autoconf $(ACFLAGS) $< > $@.new
	33	mv -f $@.new $@
	34	test -d CVS && cvs commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
	35	endef
	36
	37	configure: configure.in; $(autoconf-it)
	38	%/configure: %/configure.in; $(autoconf-it)
	39
	40	include Makeconfig
	41
	42	ifndef avoid-generated
	43	include $(objpfx)sysd-dirs
	44	define \n
	45
	46
	47	endef
	48	sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
	49	endif
	50
	51	# These are the subdirectories containing the library source.
a38f13ba	52	subdirs := csu assert ctype locale math setjmp signal stdio stdlib \
41d43dbc RM	53	malloc string time dirent grp pwd posix io termios resource \
41d43dbc RM	54	socket misc gnulib $(wildcard crypt) manual \
a38f13ba	55	$(sysdep-subdirs) elf
28f540f4 RM	56	export subdirs := $(subdirs) # Benign, useless in GNU make before 3.63.
	57
	58	# The mach and hurd subdirectories have many generated header files which
	59	# the much of rest of the library depends on, so it is best to build them
	60	# first (and mach before hurd, at that). The before-compile additions in
	61	# sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
	62	# not to exist when making in other directories, but it will be slower that
	63	# way with more somewhat expensive `make' invocations.
	64	subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
	65	$(filter-out mach hurd,$(subdirs))
	66
	67	# All initialization source files.
	68	+subdir_inits := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
	69	# All subdirectories containing initialization source files.
	70	+init_subdirs := $(patsubst %/,%,$(dir $(+subdir_inits)))
	71
	72
	73	# These are the targets that are made by making them in each subdirectory.
	74	+subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
	75	subdir_clean subdir_distclean subdir_realclean \
	76	tests subdir_lint.out \
	77	subdir_echo-headers subdir_echo-distinfo \
	78	subdir_install $(addprefix install-, \
	79	no-libc.a bin lib \
	80	data headers others)
	81	\f
37f91d33	82	headers := features.h errno.h sys/errno.h errnos.h limits.h
28f540f4 RM	83	aux = sysdep $(libc-init) version
	84
	85	echo-headers: subdir_echo-headers
	86
	87	# What to install.
	88	install-others = $(includedir)/stubs.h
	89
	90	ifeq (yes,$(gnu-ld))
	91	libc-init = set-init
	92	else
	93	libc-init = munch-init
	94	$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
	95	awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
	96	mv -f $@-t $@
	97	generated := $(generated) munch-init.c
	98	endif
	99
	100
	101	include Makerules
	102
	103	# Install from subdirectories too.
	104	install: subdir_install
	105
01a36ad3 RM	106	# Build subdirectory lib objects.
01a36ad3 RM	107	lib-noranlib: subdir_lib
28f540f4	108
01a36ad3 RM	109	ifeq (yes,$(build-shared))
	110	# Build the shared object from the PIC object library.
	111	lib: $(common-objpfx)libc.so
	112	endif
28f540f4 RM	113
	114	$(objpfx)sysd-dirs: $(+sysdir_pfx)config.make
	115	(echo define sysdep-subdirs; \
	116	for dir in $(sysdirs); do \
	117	if [ -r $(sysdep_dir)/$$dir/Subdirs ]; then \
	118	sed 's/#.*$$//' $(sysdep_dir)/$$dir/Subdirs; \
	119	else true; \
	120	fi; \
	121	done; \
	122	echo endef) > $@-tmp
	123	mv -f $@-tmp $@
	124	\f
	125	# Makerules creates a file `stub-$(subdir)' for each subdirectory, which
	126	# contains `#define __stub_FUNCTION' for each function which is a stub.
	127	# Here we paste all of these together into <stubs.h>.
	128
	129	subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))
	130
	131	# Since stubs.h is never needed when building the library, we simplify the
	132	# hairy installation process by producing it in place only as the last part
	133	# of the top-level `make install'. It depends on subdir_install, which
	134	# iterates over all the subdirs; subdir_install in each subdir depends on
	135	# the subdir's stubs file. Having more direct dependencies would result in
	136	# extra iterations over the list for subdirs and many recursive makes.
	137	$(includedir)/stubs.h: subdir_install
	138	@rm -f $(objpfx)stubs.h
	139	(echo '/* This file is automatically generated.';\
	140	echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
	141	echo ' in the C library which is a stub, meaning it will fail';\
	142	echo ' every time called, usually setting errno to ENOSYS. */';\
	143	sort $(subdir-stubs)) > $(objpfx)stubs.h
	144	$(INSTALL_DATA) $(objpfx)stubs.h $@
	145	rm -f $(objpfx)stubs.h
	146	\f
	147	# This makes the Info or DVI file of the documentation from the Texinfo source.
	148	.PHONY: info dvi
	149	info dvi:
	150	$(MAKE) -C manual $@
	151	\f
	152	# This makes all the subdirectory targets.
	153
	154	# For each target, make it depend on DIR/target for each subdirectory DIR.
	155	$(+subdir_targets): %: $(addsuffix /%,$(subdirs))
	156
	157	# Compute a list of all those targets.
	158	all-subdirs-targets := $(foreach dir,$(subdirs),\
	159	$(addprefix $(dir)/,$(+subdir_targets)))
	160
	161	# The action for each of those is to cd into the directory and make the
	162	# target there.
	163	$(all-subdirs-targets):
	164	$(MAKE) -C $(@D) $(@F)
	165
	166	.PHONY: $(+subdir_targets) $(all-subdirs-targets)
	167	\f
	168	# Targets to clean things up to various degrees.
	169
	170	.PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
	171
	172	# Subroutines of all cleaning targets.
	173	parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
6bf02878	174	-rm -f $(common-objpfx)libc.a $(addprefix $(objpfx),$(install-lib))
28f540f4 RM	175	parent-clean: parent-mostlyclean common-clean
28f540f4 RM	176	-rm -f $(addprefix $(common-objpfx),$(common-generated))
6bf02878	177	-rm -f $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules)
28f540f4 RM	178
	179	clean: parent-clean
	180	# This is done this way rather than having `subdir_clean' be a
	181	# dependency of this target so that libc.a will be removed before the
	182	# subdirectories are dealt with and so they won't try to remove object
	183	# files from it when it's going to be removed anyway.
	184	@$(MAKE) subdir_clean no_deps=t
	185	mostlyclean: parent-mostlyclean
	186	@$(MAKE) subdir_mostlyclean no_deps=t
	187
	188	# The realclean target is just like distclean for the parent, but we want
	189	# the subdirs to know the difference in case they care.
	190	realclean distclean: parent-clean
	191	# This is done this way rather than having `subdir_distclean' be a
	192	# dependency of this target so that libc.a will be removed before the
	193	# subdirectories are dealt with and so they won't try to remove object
	194	# files from it when it's going to be removed anyway.
	195	@$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes
	196
	197	# Subroutine of distclean and realclean.
	198	distclean-1: subdir_$(distclean-1)
	199	-rm -f $(config-generated)
	200	-rm -f $(addprefix $(objpfx),config.status cache.cache)
	201	-rm -f $(addprefix $(objpfx),config.make config-name.h)
	202	ifdef objdir
	203	-rm -f $(objpfx)Makefile
	204	endif
	205	-rm -f $(sysdep-$(distclean-1))
	206	\f
	207	.PHONY: echo_subdirs
	208	echo_subdirs:;@echo '$(subdirs)'
	209
	210	.PHONY: echo-distinfo parent_echo-distinfo
	211	echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
	212	parent_echo-distinfo:
	213	@echo $(addprefix +header+,$(headers)) \
	214	$(addprefix +nodist+,$(generated))
	215	\f
	216	# Make the distribution tarfile.
	217
e215c478 RM	218	distribute := README INSTALL NOTES COPYING.LIB COPYING NEWS \
e215c478 RM	219	ChangeLog ChangeLog.[0-9] \
28f540f4	220	Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
693e7b96	221	extra-lib.mk o-iterator.mk \
28f540f4 RM	222	ansidecl.h mkinstalldirs move-if-change install-sh \
28f540f4 RM	223	configure configure.in aclocal.m4 config.sub config.guess\
e215c478	224	config.make.in config-name.in Makefile.in \
28f540f4 RM	225	munch-tmpl.c munch.awk sysdep.h set-hooks.h libc-symbols.h
	226
	227	distribute := $(strip $(distribute))
	228	generated := $(generated) stubs.h
	229
	230	README: README.template version.c ; # Make-dist should update README.
	231
	232	define format-me
	233	@rm -f $@
	234	makeinfo --no-validate --no-warn --no-headers $< -o $@
	235	-chmod a-w $@
	236	endef
	237	INSTALL: manual/maint.texi; $(format-me)
	238	NOTES: manual/creature.texi; $(format-me)