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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 \ |
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 := $(generated) munch-init.c | |
98 | endif | |
99 | ||
100 | ||
101 | include Makerules | |
102 | ||
103 | # Install from subdirectories too. | |
104 | install: subdir_install | |
105 | ||
01a36ad3 RM |
106 | # Build subdirectory lib objects. |
107 | lib-noranlib: subdir_lib | |
28f540f4 | 108 | |
01a36ad3 RM |
109 | ifeq (yes,$(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. | |
174 | -rm -f $(libc.a) $(addprefix $(objpfx),$(install-lib)) | |
175 | parent-clean: parent-mostlyclean common-clean | |
176 | -rm -f $(addprefix $(common-objpfx),$(common-generated)) | |
177 | -rm -f $(addprefix $(+sysdir_pfx),sysd-Makefile sysd-dirs sysd-rules) | |
178 | ||
179 | clean: parent-clean | |
180 | # This is done this way rather than having `subdir_clean' be a | |
181 | # dependency of this target so that libc.a will be removed before the | |
182 | # subdirectories are dealt with and so they won't try to remove object | |
183 | # files from it when it's going to be removed anyway. | |
184 | @$(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 | ||
218 | distribute := README INSTALL NOTES COPYING.LIB COPYING ChangeLog NEWS \ | |
219 | Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \ | |
693e7b96 | 220 | extra-lib.mk o-iterator.mk \ |
28f540f4 RM |
221 | ansidecl.h mkinstalldirs move-if-change install-sh \ |
222 | configure configure.in aclocal.m4 config.sub config.guess\ | |
223 | config.make.in config-name.in Makefile.in \ | |
224 | munch-tmpl.c munch.awk sysdep.h set-hooks.h libc-symbols.h | |
225 | ||
226 | distribute := $(strip $(distribute)) | |
227 | generated := $(generated) stubs.h | |
228 | ||
229 | README: README.template version.c ; # Make-dist should update README. | |
230 | ||
231 | define format-me | |
232 | @rm -f $@ | |
233 | makeinfo --no-validate --no-warn --no-headers $< -o $@ | |
234 | -chmod a-w $@ | |
235 | endef | |
236 | INSTALL: manual/maint.texi; $(format-me) | |
237 | NOTES: manual/creature.texi; $(format-me) |