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28f540f4 RM |
1 | # Make the TAGS files. |
2 | ||
3 | # Copyright (C) 1992, 1994 Free Software Foundation, Inc. | |
4 | # This file is part of the GNU C Library. | |
5 | ||
6 | # The GNU C Library is free software; you can redistribute it and/or | |
7 | # modify it under the terms of the GNU Library General Public License | |
8 | # as published by the Free Software Foundation; either version 2 of | |
9 | # the License, or (at your option) any later version. | |
10 | ||
11 | # The GNU C Library is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | # Library General Public License for more details. | |
15 | ||
16 | # You should have received a copy of the GNU Library General Public | |
17 | # License along with the GNU C Library; see the file COPYING.LIB. If | |
18 | # not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
19 | # Cambridge, MA 02139, USA. | |
20 | ||
21 | # Make this the default goal. | |
22 | TAGS: | |
23 | ||
24 | ifdef subdir | |
25 | .. := ../ | |
26 | endif | |
27 | ||
28 | include $(..)Makeconfig | |
29 | ||
30 | ifndef tags_sources | |
31 | ifeq ($(subdir),ctype) | |
32 | # In most cases, we want the C source files to come before | |
33 | # the header files so tags for optimizing #define's in the | |
34 | # headers won't be put in the tags files, but for ctype, | |
35 | # the functions are just backup for the #define's in the header. | |
36 | tags_sources = $(all-headers) $(all-sources) | |
37 | else # Not ctype. | |
38 | tags_sources = $(all-sources) $(all-headers) | |
39 | endif # ctype | |
40 | endif # No tags_sources | |
41 | ||
42 | sysdep-dirs := $(addprefix $(sysdep_dir)/,$(sysdirs)) | |
43 | ||
44 | ifndef sysdep_dirs | |
45 | # Find all sysdep directories. | |
46 | sysdep_dirs := $(shell find $(..)sysdeps -type d ! -name RCS -print) | |
47 | endif | |
48 | ||
49 | # Find all sysdep dirs there are, but putting the ones | |
50 | # we are configured to use first and preserving their order. | |
51 | all-dirs := $(objdir) \ | |
52 | $(sysdep-dirs) \ | |
53 | $(source_dirs) \ | |
54 | $(filter-out $(sysdep-dirs),$(sysdep_dirs)) | |
55 | ||
56 | # Find all the subdirs there are, but putting the ones | |
57 | # we are configured to use first and preserving their order. | |
58 | ifndef subdir | |
59 | subdirs := $(subdirs) \ | |
60 | $(filter-out $(subdirs),\ | |
61 | $(shell sed -e 's/\#.*$$//' \ | |
62 | $(wildcard $(addsuffix /Subdirs,\ | |
63 | $(all-dirs)))\ | |
64 | /dev/null)) | |
65 | all-dist = $(foreach Dist,$(wildcard $(all-dirs:%=%/Dist)),\ | |
66 | $(addprefix $(Dist:%/Dist=%)/,\ | |
67 | $(filter %.c %.h %.S %.s,\ | |
68 | $(shell cat $(Dist))))) | |
69 | tags_sources = $(all-sources) $(all-headers) $(all-dist) | |
70 | endif | |
71 | ||
72 | # All different versions of $(sources), preserving the configured sysdep | |
73 | # directory order. | |
74 | all-sources = $(wildcard $(foreach file,$(sources),\ | |
75 | $(file) \ | |
76 | $(foreach dir,$(all-dirs),\ | |
77 | $(dir)/$(file) \ | |
78 | $(dir)/$(file:.c=.S) \ | |
79 | $(dir)/$(file:.c=.s)))) | |
80 | ||
81 | all-headers = $(wildcard $(foreach file,$(headers),\ | |
82 | $(file) \ | |
83 | $(foreach dir,$(all-dirs),$(dir)/$(file)))) | |
84 | ||
85 | tags_sources := $(strip $(tags_sources)) | |
86 | ||
87 | TAGS: $(tags_sources) | |
88 | ifdef subdir | |
89 | ifdef tags_sources | |
90 | $(ETAGS) -o $@ $^ | |
91 | else | |
92 | # No sources. Create a dummy file. | |
93 | touch $@ | |
94 | endif # tags_sources | |
95 | else # parent | |
96 | TAGS: subdir_TAGS | |
97 | # Note that this uses the -i switch, and thus requires v19 etags. | |
98 | $(ETAGS) -o $@ \ | |
99 | $(subdirs:%=-i %/TAGS) \ | |
100 | $(filter-out subdir_TAGS,$^) | |
101 | ||
102 | .PHONY: subdir_TAGS $(subdirs:%=%/TAGS) | |
103 | subdir_TAGS: $(subdirs:%=%/TAGS) | |
104 | $(subdirs:%=%/TAGS): | |
105 | $(MAKE) -C $(@D) no_deps=t $(@F) | |
106 | ||
107 | endif # subdir |