1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
# Copyright (C) 1991, 92, 93, 94, 95, 96 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.
#
# Rules for making a subdirectory in the GNU C library.
# Each subdirectory Makefile defines some variables and includes this.
#
ifneq (,)
This makefile requires GNU Make.
endif
all: # Don't let the default goal come from Makeconfig.
include ../Makeconfig
ifndef subdir
Each subdirectory makefile must define the `subdir' variable.
endif
# This is benign and useless in GNU make before 3.63.
export subdir := $(subdir)
# This is the default target; it makes the library and auxiliary programs.
.PHONY: all
all: objs lib others
others: $(addprefix $(objpfx),$(extra-objs) \
$(install-lib) $(install-bin) $(install-sbin))
ifneq "$(findstring env,$(origin headers))" ""
headers :=
endif
ifneq "$(findstring env,$(origin generated))" ""
generated :=
endif
ifeq "$(strip $(headers))" ""
ifneq "$(wildcard $(subdir).h)" ""
override headers := $(subdir).h
endif
endif
include ../Makerules
.PHONY: subdir_lib
subdir_lib: lib-noranlib
# Some subdirs need to install a dummy library.
# They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
dep-dummy-lib = $(objpfx)dummy.o
define make-dummy-lib
$(AR) cr$(verbose) $@ $<
endef
$(objpfx)dummy.o:
@rm -f $(@:.o=.c)
echo 'void __dummy__ () { }' > $(@:.o=.c)
$(CC) -c $(@:.o=.c) -o $@
generated := $(generated) dummy.o dummy.c
# This makes all the auxilliary and test programs.
.PHONY: others tests
others: $(addprefix $(objpfx),$(others) $(extra-objs))
ifeq ($(cross-compiling),yes)
tests: $(addprefix $(objpfx),$(tests))
else
tests: $(tests:%=$(objpfx)%.out)
endif
ifneq "$(strip $(others) $(tests))" ""
$(addprefix $(objpfx),$(others) $(tests)): %: %.o \
$(sort $(filter $(common-objpfx)libc%,$(link-libc)))
$(+link)
endif
ifneq "$(strip $(tests))" ""
# These are the implicit rules for making test outputs
# from the test programs and whatever input files are present.
$(objpfx)%.out: %.args $(objpfx)% %.input
$(built-program-cmd) `cat $(word 1,$^)` < $(word 3,$^) > $@
$(objpfx)%.out: %.args $(objpfx)%
$(built-program-cmd) `cat $(word 1,$^)` > $@
$(objpfx)%.out: %.input $(objpfx)%
$(built-program-cmd) < $(word 1,$^) > $@
$(objpfx)%.out: /dev/null $(objpfx)% # Make it 2nd arg for canned sequence.
$(built-program-cmd) > $@
endif # tests
.PHONY: distclean realclean subdir_distclean subdir_realclean \
subdir_clean subdir_mostlyclean
subdir_mostlyclean: mostlyclean
subdir_clean: clean
subdir_distclean: distclean
subdir_realclean: realclean
realclean: distclean
distclean: clean
.PHONY: subdir_echo-headers
subdir_echo-headers: echo-headers
.PHONY: subdir_echo-distinfo
subdir_echo-distinfo:
@echo $(addprefix +header+,$(headers)) \
$(addprefix +nodist+,$(generated) $(dont_distribute))
# We want to install everything except the library itself, but update all
# our portions of the library because the parent make will install it later
# (likewise the stubs file).
.PHONY: subdir_install
subdir_install: install-no-libc.a lib-noranlib stubs
.PHONY: subdir_TAGS subdir_dist
subdir_TAGS: TAGS
subdir_dist: dist
# Convenient target to update all the generated source files.
.PHONY: generated
generated: $(addprefix $(objpfx),$(generated))
|