]>
Commit | Line | Data |
---|---|---|
7f0ff1b0 | 1 | # Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 Free Software Foundation, Inc. |
28f540f4 RM |
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 | |
0c5ecdc4 UD |
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. | |
28f540f4 RM |
18 | |
19 | # | |
20 | # Makefile configuration options for the GNU C library. | |
21 | # | |
22 | ifneq (,) | |
23 | This makefile requires GNU Make. | |
24 | endif | |
25 | ||
3e5f5557 UD |
26 | all: # Make this the default goal |
27 | ||
28f540f4 RM |
28 | ifneq "$(origin +included-Makeconfig)" "file" |
29 | ||
30 | +included-Makeconfig := yes | |
31 | ||
32 | ifdef subdir | |
33 | .. := ../ | |
34 | endif | |
35 | ||
36 | # If config.make exists, the source directory was configured, | |
37 | # so don't try to be clever and find another directory to build in. | |
38 | ifneq (,$(wildcard $(..)config.make)) | |
39 | ARCH = | |
40 | machine = | |
41 | else # Not configured. | |
42 | ifndef ARCH | |
43 | ifdef machine | |
44 | ARCH = $(machine) | |
45 | endif # machine | |
46 | endif # ARCH | |
47 | endif # config.make | |
48 | ||
49 | # Directory for object files and libc.a. If this is not defined, the | |
50 | # object files live in the subdirectories where their sources live, and | |
51 | # libc.a lives in the parent directory (this probably doesn't work any | |
52 | # more). | |
53 | ifdef ARCH | |
54 | ifeq ($(filter /%,$(ARCH)),) | |
55 | objdir := $(..)$(ARCH) | |
56 | else | |
57 | objdir = $(ARCH) | |
58 | endif | |
59 | endif | |
60 | ||
094bacdb | 61 | # $(common-objdir) is the place to put objects and |
28f540f4 RM |
62 | # such that are not specific to a single subdir. |
63 | ifdef objdir | |
6e953631 UD |
64 | objpfx := $(patsubst %//,%/,$(objdir)/$(subdir)/) |
65 | common-objpfx = $(objdir)/ | |
28f540f4 RM |
66 | common-objdir = $(objdir) |
67 | else | |
68 | objpfx := | |
69 | ifdef .. | |
70 | common-objpfx = $(..) | |
71 | common-objdir = .. | |
72 | else | |
73 | # This is a kludge. make wizards might grok. | |
74 | common-objpfx = sysdeps/../ | |
75 | common-objdir = . | |
76 | endif | |
77 | endif | |
78 | ||
f332db02 RM |
79 | # Root of the sysdeps tree. |
80 | sysdep_dir := $(..)sysdeps | |
81 | export sysdep_dir := $(sysdep_dir) | |
82 | ||
28f540f4 RM |
83 | # Get the values defined by options to `configure'. |
84 | include $(common-objpfx)config.make | |
85 | ||
0501d603 UD |
86 | # We have a special subdir for each binary format. |
87 | # For now, only ELF is fully supported. | |
88 | ifeq ($(elf),yes) | |
89 | binfmt-subdir = elf | |
90 | else | |
0a54e401 UD |
91 | # This is probably better than nothing. |
92 | binfmt-subdir = aout | |
0501d603 UD |
93 | endif |
94 | ||
57ba7bb4 UD |
95 | # Complete path to sysdep dirs. |
96 | full-config-sysdirs := $(filter /%, $(config-sysdirs)) \ | |
97 | $(addprefix $(..), $(filter-out /%, $(config-sysdirs))) | |
98 | export full-config-sysdirs := $(full-config-sysdirs) | |
99 | ||
273d56ce RM |
100 | # Run config.status to update config.make and config.h. We don't show the |
101 | # dependence of config.h to Make, because it is only touched when it | |
102 | # changes and so config.status would be run every time; the dependence of | |
103 | # config.make should suffice to force regeneration and re-exec, and the new | |
104 | # image will notice if config.h changed. | |
19361cb7 UD |
105 | $(common-objpfx)config.make: $(common-objpfx)config.status \ |
106 | $(..)config.make.in $(..)config.h.in | |
273d56ce RM |
107 | cd $(<D); $(SHELL) $(<F) |
108 | ||
7da3079b RM |
109 | # Find all the sysdeps configure fragments, to make sure we re-run |
110 | # configure when any of them changes. | |
5290baf0 | 111 | $(common-objpfx)config.status: $(..)version.h $(..)configure \ |
57ba7bb4 | 112 | $(foreach dir,$(full-config-sysdirs),\ |
e50ec9f9 | 113 | $(wildcard \ |
57ba7bb4 | 114 | $(dir)/Implies) \ |
f332db02 RM |
115 | $(patsubst %.in,%,\ |
116 | $(firstword $(wildcard \ | |
57ba7bb4 | 117 | $(addprefix $(dir)/,configure configure.in))))) |
273d56ce RM |
118 | @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \ |
119 | echo The GNU C library has not been configured. >&2; \ | |
120 | echo Run \`configure\' to configure it before building. >&2; \ | |
121 | echo Try \`configure --help\' for more details. >&2; \ | |
122 | exit 1; fi | |
28f540f4 | 123 | |
74015205 UD |
124 | # We don't want CPPFLAGS to be exported to the command running configure. |
125 | unexport CPPFLAGS | |
126 | ||
28f540f4 RM |
127 | # Get the user's configuration parameters. |
128 | ifneq ($(wildcard $(..)configparms),) | |
129 | include $(..)configparms | |
130 | endif | |
131 | ifneq ($(objpfx),) | |
6e953631 UD |
132 | ifneq ($(wildcard $(common-objpfx)configparms),) |
133 | include $(common-objpfx)configparms | |
28f540f4 RM |
134 | endif |
135 | endif | |
28f540f4 RM |
136 | \f |
137 | #### | |
138 | #### These are the configuration variables. You can define values for | |
139 | #### the variables below in the file `configparms'. | |
140 | #### Do NOT edit this file. | |
141 | #### | |
142 | ||
143 | ||
deab9dea RM |
144 | # Set this to either `stdio' or `libio', to compile in either GNU stdio |
145 | # or GNU libio. | |
146 | ifndef stdio | |
147 | stdio = stdio | |
148 | endif | |
149 | ||
28f540f4 | 150 | # Common prefix for machine-independent installation directories. |
487253ea | 151 | ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value. |
28f540f4 RM |
152 | prefix = /usr/local |
153 | endif | |
154 | ||
0413b54c UD |
155 | # Decide whether we shall build the programs or not. We always do this |
156 | # unless the user tells us (in configparms) or we are building for a | |
157 | # standalone target. | |
158 | ifndef build-programs | |
159 | ifneq ($(config-os),none) | |
160 | build-programs=yes | |
161 | else | |
162 | build-programs=no | |
163 | endif | |
164 | endif | |
165 | ||
28f540f4 | 166 | # Common prefix for machine-dependent installation directories. |
487253ea | 167 | ifeq ($(origin exec_prefix),undefined) |
28f540f4 RM |
168 | exec_prefix = $(prefix) |
169 | endif | |
170 | ||
171 | # Where to install the library and object files. | |
172 | ifndef libdir | |
173 | libdir = $(exec_prefix)/lib | |
174 | endif | |
8d57beea | 175 | inst_libdir = $(install_root)$(libdir) |
28f540f4 | 176 | |
094bacdb RM |
177 | # Where to install the shared library and dynamic linker. |
178 | ifndef slibdir | |
179 | slibdir = $(exec_prefix)/lib | |
180 | endif | |
8d57beea | 181 | inst_slibdir = $(install_root)$(slibdir) |
094bacdb | 182 | |
28f540f4 RM |
183 | # Prefix to put on files installed in $(libdir). For libraries `libNAME.a', |
184 | # the prefix is spliced between `lib' and the name, so the linker switch | |
185 | # `-l$(libprefix)NAME' finds the library; for other files the prefix is | |
186 | # just prepended to the whole file name. | |
487253ea | 187 | ifeq ($(origin libprefix),undefined) |
28f540f4 RM |
188 | libprefix = |
189 | endif | |
190 | ||
191 | # Where to install the header files. | |
192 | ifndef includedir | |
193 | includedir = $(exec_prefix)/include | |
194 | endif | |
8d57beea | 195 | inst_includedir = $(install_root)$(includedir) |
28f540f4 | 196 | |
28f540f4 | 197 | # Where to install machine-independent data files. |
a2fe9c76 | 198 | # These are the timezone database, and the locale database. |
28f540f4 RM |
199 | ifndef datadir |
200 | datadir = $(prefix)/share | |
201 | endif | |
8d57beea | 202 | inst_datadir = $(install_root)$(datadir) |
28f540f4 RM |
203 | |
204 | # Where to install the timezone data files (which are machine-independent). | |
205 | ifndef zonedir | |
206 | zonedir = $(datadir)/zoneinfo | |
207 | endif | |
8d57beea | 208 | inst_zonedir = $(install_root)$(zonedir) |
28f540f4 | 209 | |
3ec41e03 RM |
210 | # Where to install the locale and message catalog data files (which are |
211 | # machine-independent). | |
a2fe9c76 RM |
212 | ifndef localedir |
213 | localedir = $(datadir)/locale | |
214 | endif | |
8d57beea | 215 | inst_localedir = $(install_root)$(localedir) |
a2fe9c76 | 216 | |
3ec41e03 | 217 | # Where to install the locale charmap source files. |
19bc17a9 RM |
218 | ifndef i18ndir |
219 | i18ndir = $(datadir)/i18n | |
a2fe9c76 | 220 | endif |
8d57beea | 221 | inst_i18ndir = $(install_root)$(i18ndir) |
a2fe9c76 | 222 | |
6973fc01 UD |
223 | # Where to install the shared object for charset transformation. |
224 | ifndef gconvdir | |
225 | gconvdir = $(libdir)/gconv | |
226 | endif | |
227 | inst_gconvdir = $(install_root)$(gconvdir) | |
228 | ||
28f540f4 RM |
229 | # Where to install programs. |
230 | ifndef bindir | |
231 | bindir = $(exec_prefix)/bin | |
232 | endif | |
8d57beea | 233 | inst_bindir = $(install_root)$(bindir) |
28f540f4 | 234 | |
7f0ff1b0 UD |
235 | # Where to install internal programs. |
236 | ifndef libexecdir | |
237 | libexecdir = $(exec_prefix)/libexec | |
238 | endif | |
239 | inst_libexecdir = $(install_root)$(libexecdir) | |
240 | ||
28f540f4 | 241 | # Where to install administrative programs. |
1ef32c3d UD |
242 | ifndef rootsbindir |
243 | rootsbindir = $(exec_prefix)/sbin | |
244 | endif | |
8d57beea | 245 | inst_rootsbindir = $(install_root)$(rootsbindir) |
1ef32c3d | 246 | |
28f540f4 RM |
247 | ifndef sbindir |
248 | sbindir = $(exec_prefix)/sbin | |
249 | endif | |
8d57beea | 250 | inst_sbindir = $(install_root)$(sbindir) |
28f540f4 RM |
251 | |
252 | # Where to install the Info files. | |
253 | ifndef infodir | |
254 | infodir = $(prefix)/info | |
255 | endif | |
8d57beea | 256 | inst_infodir = $(install_root)$(infodir) |
28f540f4 RM |
257 | |
258 | # Where to install default configuration files. These include the local | |
259 | # timezone specification and network data base files. | |
260 | ifndef sysconfdir | |
261 | sysconfdir = $(prefix)/etc | |
262 | endif | |
8d57beea | 263 | inst_sysconfdir = $(install_root)$(sysconfdir) |
28f540f4 RM |
264 | |
265 | # What timezone should be the installed default (e.g., US/Eastern). | |
266 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
267 | # The local timezone can be changed with `zic -l TIMEZONE' at any time. | |
268 | ifndef localtime | |
269 | localtime = Factory | |
270 | endif | |
271 | ||
272 | # Where to install the "localtime" timezone file; this is the file whose | |
273 | # contents $(localtime) specifies. If this is a relative pathname, it is | |
274 | # relative to $(zonedir). It is a good idea to put this somewhere | |
275 | # other than there, so the zoneinfo directory contains only universal data, | |
276 | # localizing the configuration data elsewhere. | |
277 | ifndef localtime-file | |
0d8733c4 UD |
278 | localtime-file = $(sysconfdir)/localtime |
279 | inst_localtime-file = $(install_root)$(localtime-file) | |
28f540f4 RM |
280 | endif |
281 | ||
59dd8641 RM |
282 | # What to use for leap second specifications in compiling the default |
283 | # timezone files. Set this to `/dev/null' for no leap second handling as | |
284 | # 1003.1 requires, or to `leapseconds' for proper leap second handling. | |
285 | # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'. | |
286 | # This variable determines the default: if it's `/dev/null', | |
287 | # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE. | |
288 | ifndef leapseconds | |
289 | leapseconds = /dev/null | |
290 | endif | |
291 | ||
28f540f4 RM |
292 | # What timezone's DST rules should be used when a POSIX-style TZ |
293 | # environment variable doesn't specify any rules. For 1003.1 compliance | |
294 | # this timezone must use rules that are as U.S. federal law defines DST. | |
295 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
296 | # This setting can be changed with `zic -p TIMEZONE' at any time. | |
297 | # If you want POSIX.1 compatibility, use `America/New_York'. | |
298 | ifndef posixrules | |
299 | posixrules = America/New_York | |
300 | endif | |
301 | ||
302 | # Where to install the "posixrules" timezone file; this is file | |
303 | # whose contents $(posixrules) specifies. If this is a relative | |
304 | # pathname, it is relative to $(zonedir). | |
305 | ifndef posixrules-file | |
306 | posixrules-file = posixrules | |
307 | endif | |
308 | ||
309 | ||
310 | # Directory where your system's native header files live. | |
311 | # This is used on Unix systems to generate some GNU libc header files. | |
312 | ifndef sysincludedir | |
313 | sysincludedir = /usr/include | |
314 | endif | |
315 | ||
316 | ||
317 | # Commands to install files. | |
318 | ifndef INSTALL_DATA | |
319 | INSTALL_DATA = $(INSTALL) -m 644 | |
320 | endif | |
321 | ifndef INSTALL_PROGRAM | |
322 | INSTALL_PROGRAM = $(INSTALL) | |
323 | endif | |
324 | ifndef INSTALL | |
325 | INSTALL = install | |
326 | endif | |
327 | ||
328 | ||
329 | # The name of the C compiler. | |
330 | # If you've got GCC, and it works, use it. | |
331 | ifeq ($(origin CC),default) | |
332 | CC := gcc | |
333 | endif | |
334 | ||
335 | # The name of the C compiler to use for compilations of programs to run on | |
336 | # the host that is building the library. If you set CC to a | |
337 | # cross-compiler, you must set this to the normal compiler. | |
338 | ifndef BUILD_CC | |
339 | BUILD_CC = $(CC) | |
340 | endif | |
341 | ||
342 | # Default flags to pass the C compiler. | |
343 | ifndef default_cflags | |
a8922de8 | 344 | default_cflags := -g -O |
28f540f4 RM |
345 | endif |
346 | ||
347 | # Flags to pass the C compiler when assembling preprocessed assembly code | |
348 | # (`.S' files). On some systems the assembler doesn't understand the `#' line | |
349 | # directives the preprocessor produces. If you have troubling compiling | |
350 | # assembly code, try using -P here to suppress these directives. | |
351 | ifndef asm-CPPFLAGS | |
352 | asm-CPPFLAGS = | |
353 | endif | |
354 | ||
9a0a462c UD |
355 | # ELF always supports init/fini sections |
356 | ifeq ($(elf),yes) | |
357 | have-initfini = yes | |
358 | endif | |
359 | ||
779ae82e | 360 | # Installed name of the startup code. |
9a0a462c UD |
361 | ifneq ($(have-initfini),yes) |
362 | # When not having init/fini, there is just one startfile, called crt0.o. | |
779ae82e UD |
363 | start-installed-name = crt0.o |
364 | else | |
9a0a462c | 365 | # On systems having init/fini, crt0.o is called crt1.o, and there are |
779ae82e UD |
366 | # some additional bizarre files. |
367 | start-installed-name = crt1.o | |
779ae82e UD |
368 | endif |
369 | ||
370 | ||
28f540f4 RM |
371 | # Command for linking programs with the C library. |
372 | ifndef +link | |
8e3cc80f RM |
373 | +link = $(CC) -nostdlib -nostartfiles -o $@ \ |
374 | $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) \ | |
779ae82e UD |
375 | $(addprefix $(csu-objpfx),$(start-installed-name)) \ |
376 | $(+preinit) $(+prector) \ | |
377 | $(filter-out $(addprefix $(csu-objpfx),start.o \ | |
378 | $(start-installed-name))\ | |
379 | $(+preinit) $(link-extra-libs) \ | |
380 | $(common-objpfx)libc% $(+postinit),$^) \ | |
5ae9d168 | 381 | $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit) |
28f540f4 | 382 | endif |
e1586792 UD |
383 | # Command for statically linking programs with the C library. |
384 | ifndef +link-static | |
385 | +link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \ | |
386 | $(sysdep-LDFLAGS) $(LDFLAGS) \ | |
387 | $(addprefix $(csu-objpfx),$(start-installed-name)) \ | |
388 | $(+preinit) $(+prector) \ | |
389 | $(filter-out $(addprefix $(csu-objpfx),start.o \ | |
390 | $(start-installed-name))\ | |
391 | $(+preinit) $(link-extra-libs-static) \ | |
392 | $(common-objpfx)libc% $(+postinit),$^) \ | |
393 | $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit) | |
394 | endif | |
b122c703 RM |
395 | ifndef config-LDFLAGS |
396 | ifeq (yes,$(build-shared)) | |
094bacdb | 397 | config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name) |
b122c703 RM |
398 | endif |
399 | endif | |
3fe9de0d RM |
400 | ifndef link-libc |
401 | ifeq (yes,$(build-shared)) | |
aa1075ea RM |
402 | # We need the versioned name of libc.so in the deps of $(others) et al |
403 | # so that the symlink to libc.so is created before anything tries to | |
404 | # run the linked programs. | |
4d6acc61 | 405 | link-libc = -Wl,-rpath-link=$(rpath-link) \ |
aa1075ea | 406 | $(common-objpfx)libc.so$(libc.so-version) \ |
a44d2393 | 407 | $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib) |
4cb20290 RM |
408 | # Choose the default search path for the dynamic linker based on |
409 | # where we will install libraries. | |
410 | ifneq ($(libdir),$(slibdir)) | |
411 | default-rpath = $(slibdir):$(libdir) | |
412 | else | |
413 | default-rpath = $(libdir) | |
414 | endif | |
4d6acc61 | 415 | # This is how to find at build-time things that will be installed there. |
e72bfd87 UD |
416 | rpath-dirs = math elf nss nis db2 rt resolv |
417 | rpath-link = \ | |
418 | $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%))) | |
47707456 | 419 | elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf) |
26b4d766 | 420 | dbobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)db2) |
3fe9de0d RM |
421 | else |
422 | link-libc = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a | |
423 | endif | |
424 | endif | |
900bec85 | 425 | |
57ba7bb4 UD |
426 | ifndef link-extra-libs |
427 | ifeq (yes,$(build-shared)) | |
c57abfa7 UD |
428 | ifneq ($(common-objpfx),$(objpfx)) |
429 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\ | |
430 | $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \ | |
431 | $(objpfx)$(lib).so$($(notdir $(lib)).so-version))) | |
432 | else | |
57ba7bb4 | 433 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version)) |
c57abfa7 | 434 | endif |
57ba7bb4 UD |
435 | else |
436 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a) | |
437 | endif | |
438 | endif | |
e1586792 UD |
439 | |
440 | # The static libraries. | |
66000494 | 441 | ifeq (yes,$(build-static)) |
e1586792 UD |
442 | link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a |
443 | link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a) | |
66000494 UD |
444 | else |
445 | ifeq (yes,$(build-shared)) | |
446 | # We can try to link the programs with lib*_pic.a... | |
447 | link-libc-static = $(link-libc) $(common-objpfx)libc_pic.a | |
448 | link-extra-libs-static = $(link-extra-libs) | |
449 | endif | |
450 | endif | |
e1586792 | 451 | |
28f540f4 RM |
452 | ifndef gnulib |
453 | gnulib := -lgcc | |
454 | endif | |
96f873b9 | 455 | ifeq ($(elf),yes) |
e75154a6 RM |
456 | +preinit = $(addprefix $(csu-objpfx),crti.o) |
457 | +postinit = $(addprefix $(csu-objpfx),crtn.o) | |
5ae9d168 UD |
458 | +prector = `$(CC) --print-file-name=crtbegin.o` |
459 | +postctor = `$(CC) --print-file-name=crtend.o` | |
96f873b9 | 460 | endif |
6e953631 UD |
461 | csu-objpfx = $(common-objpfx)csu/ |
462 | elf-objpfx = $(common-objpfx)elf/ | |
28f540f4 | 463 | |
03a75825 RM |
464 | # How to run a program we just linked with our library. |
465 | # The program binary is assumed to be $(word 2,$^). | |
466 | built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^)) | |
467 | ifneq (yes,$(build-shared)) | |
468 | built-program-cmd = $(built-program-file) | |
469 | else | |
196980f5 | 470 | comma = , |
11336c16 UD |
471 | sysdep-library-path = \ |
472 | $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\ | |
473 | $(filter -Wl$(comma)-rpath-link=%,\ | |
474 | $(sysdep-LDFLAGS))))) | |
03a75825 | 475 | define built-program-cmd |
880f421f UD |
476 | $(elf-objpfx)$(rtld-installed-name) \ |
477 | --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \ | |
478 | $(built-program-file) | |
03a75825 RM |
479 | endef |
480 | endif | |
481 | ||
28f540f4 RM |
482 | ifndef LD |
483 | LD := ld -X | |
484 | endif | |
485 | ||
486 | ifndef RANLIB | |
487 | RANLIB = ranlib | |
488 | endif | |
489 | ||
490 | # Extra flags to pass to GCC. | |
522548fb | 491 | +gccwarn := -Wall -Wwrite-strings -Wno-parentheses -Winline -Wstrict-prototypes |
28f540f4 RM |
492 | |
493 | # This is the program that generates makefile | |
494 | # dependencies from C source files. | |
495 | ifndef +mkdep | |
496 | +mkdep = $(CC) -M | |
497 | endif | |
498 | ||
499 | # The program that makes Emacs-style TAGS files. | |
500 | ETAGS := etags -T | |
501 | ||
502 | # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and | |
503 | # perhaps others) to preprocess assembly code in some cases. | |
504 | M4 = m4 | |
505 | ||
73237de3 UD |
506 | # To force installation of files even if they are older than the |
507 | # installed files. This variable is included in the dependency list | |
508 | # of all installation targets. | |
509 | ifeq ($(force-install),yes) | |
510 | +force = force-install | |
511 | else | |
512 | +force = | |
513 | endif | |
514 | ||
28f540f4 RM |
515 | #### |
516 | #### End of configuration variables. | |
517 | #### | |
518 | \f | |
519 | # This tells some versions of GNU make before 3.63 not to export all variables. | |
520 | .NOEXPORT: | |
521 | ||
522 | # We want to echo the commands we're running without | |
6d52618b | 523 | # umpteen zillion filenames along with it (we use `...' instead) |
28f540f4 RM |
524 | # but we don't want this echoing done when the user has said |
525 | # he doesn't want to see commands echoed by using -s. | |
526 | ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s | |
527 | +cmdecho := echo >/dev/null | |
528 | else # not -s | |
529 | +cmdecho := echo | |
530 | endif # -s | |
531 | ||
532 | # These are the flags given to the compiler to tell | |
533 | # it what sort of optimization and/or debugging output to do. | |
534 | ifndef +cflags | |
535 | # If `CFLAGS' was defined, use that. | |
536 | ifdef CFLAGS | |
537 | +cflags := $(filter-out -I%,$(CFLAGS)) | |
538 | endif # CFLAGS | |
539 | endif # +cflags | |
540 | ||
fd26970f | 541 | # If none of the above worked, default to "-g -O". |
28f540f4 RM |
542 | ifeq "$(strip $(+cflags))" "" |
543 | +cflags := $(default_cflags) | |
544 | endif # $(+cflags) == "" | |
545 | ||
28f540f4 RM |
546 | +cflags := $(+cflags) $(+gccwarn) |
547 | +gcc-nowarn := -w | |
28f540f4 RM |
548 | |
549 | # Don't duplicate options if we inherited variables from the parent. | |
550 | +cflags := $(sort $(+cflags)) | |
551 | ||
552 | ||
553 | # These are flags given to the C compiler to tell it to look for include | |
762a2918 UD |
554 | # files (including ones given in angle brackets) in the current directory, |
555 | # in the parent library source directory and in the include directory. | |
28f540f4 | 556 | # `+sysdep-includes' will be defined by Makerules. |
dfd2257a UD |
557 | +includes = -I. $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \ |
558 | -I$(..)include $($(stdio)-include) $(includes) \ | |
dbe7a0f5 | 559 | $(+sysdep-includes) $(last-includes) $(sysincludes) |
28f540f4 | 560 | |
96aa2d94 | 561 | # Since libio has several internal header files, we use a -I instead |
762a2918 | 562 | # of many little headers in the include directory. |
96aa2d94 | 563 | libio-include = -I$(..)libio |
28f540f4 RM |
564 | |
565 | # These are the variables that the implicit compilation rules use. | |
5107cf1d | 566 | CPPFLAGS = $(+includes) $(defines) -include $(..)include/libc-symbols.h \ |
8a4b65b4 UD |
567 | $(sysdep-CPPFLAGS) $(CPPFLAGS-$(suffix $@)) $(CPPFLAGS-$(<F)) \ |
568 | $(CPPFLAGS-$(@F)) | |
14e9dd67 UD |
569 | override CFLAGS = $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \ |
570 | $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F)) | |
28f540f4 RM |
571 | |
572 | ||
573 | # This is the macro that the implicit linking rules use. | |
574 | ifneq "$(filter -g,$(+cflags))" "" # -g is in $(+cflags) | |
575 | LDFLAGS := -g | |
576 | endif | |
577 | ||
f0bf9cb9 | 578 | |
cc3fa755 UD |
579 | # If everything is compiled with -fPIC (implicitly) we must tell this by |
580 | # defining the PIC symbol. | |
581 | ifeq (yes,$(build-pic-default)) | |
582 | pic-default = -DPIC | |
583 | endif | |
584 | ||
f0bf9cb9 RM |
585 | # Enable object files for different versions of the library. |
586 | # Various things use $(object-suffixes) to know what all to make. | |
587 | # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX}) | |
588 | # to pass different flags for each flavor. | |
91641c65 | 589 | libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o)) |
a35cb74d | 590 | all-object-suffixes := .o .os .op .og .ob .oS |
650425ce | 591 | object-suffixes := |
cc3fa755 | 592 | CPPFLAGS-.o = $(pic-default) |
14e9dd67 | 593 | CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) |
66000494 | 594 | ifeq (yes,$(build-static)) |
f0bf9cb9 | 595 | libtype.o := lib%.a |
650425ce UD |
596 | object-suffixes += .o |
597 | endif | |
f0bf9cb9 RM |
598 | ifeq (yes,$(build-shared)) |
599 | # Under --enable-shared, we will build a shared library of PIC objects. | |
40a55d20 UD |
600 | # The PIC object files are named foo.os. |
601 | object-suffixes += .os | |
602 | CPPFLAGS-.os = -DPIC | |
14e9dd67 | 603 | CFLAGS-.os = $(filter %frame-pointer,$(+cflags)) $(pic-ccflag) |
40a55d20 | 604 | libtype.os := lib%_pic.a |
26b4d766 UD |
605 | # This can be changed by a sysdep makefile |
606 | pic-ccflag = -fPIC | |
f0bf9cb9 RM |
607 | endif |
608 | ifeq (yes,$(build-profile)) | |
609 | # Under --enable-profile, we will build a static library of profiled objects. | |
40a55d20 UD |
610 | # The profiled object files are named foo.op. |
611 | object-suffixes += .op | |
cc3fa755 | 612 | CPPFLAGS-.op = -DPROF $(pic-default) |
40a55d20 UD |
613 | CFLAGS-.op = -pg |
614 | libtype.op = lib%_p.a | |
f0bf9cb9 RM |
615 | endif |
616 | ifeq (yes,$(build-omitfp)) | |
617 | # Under --enable-omitfp, we build an the library optimized without | |
618 | # debugging information using -fomit-frame-pointer, and build an extra | |
40a55d20 UD |
619 | # library with debugging information. The debuggable objects are named foo.og. |
620 | object-suffixes += .og | |
cc3fa755 | 621 | CPPFLAGS-.og = $(pic-default) |
40a55d20 | 622 | CFLAGS-.og = -g |
14e9dd67 UD |
623 | CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES |
624 | CFLAGS-.os += -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES | |
40a55d20 | 625 | libtype.og = lib%_g.a |
f0bf9cb9 | 626 | endif |
5a97622d UD |
627 | ifeq (yes,$(build-bounded)) |
628 | # Under --enable-bounded, we build the library with `-fbounded-pointers -g' | |
40a55d20 UD |
629 | # to runtime bounds checking. The bounded-pointer objects are named foo.ob. |
630 | object-suffixes += .ob | |
cc3fa755 | 631 | CPPFLAGS-.ob = -DBOUNDED_POINTERS $(pic-default) |
40a55d20 UD |
632 | CFLAGS-.ob = -g -fbounded-pointers |
633 | libtype.ob = lib%_b.a | |
5a97622d | 634 | endif |
f0bf9cb9 | 635 | |
9afc8a59 UD |
636 | object-suffixes-for-libc := $(object-suffixes) |
637 | ||
638 | ifeq (yes,$(build-shared)) | |
639 | # Build special library that contains the static-only routines for libc. | |
640 | object-suffixes-for-libc += .oS | |
641 | ||
642 | # Must build the routines as PIC, though, because they can end up in (users') | |
643 | # shared objects. We don't want to use CFLAGS-os because users may, for | |
644 | # example, make that processor-specific. | |
645 | CFLAGS-.oS = $(CFLAGS-.o) $(pic-ccflag) | |
6ca96fe2 | 646 | CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC |
9afc8a59 UD |
647 | libtype.oS = lib%_nonshared.a |
648 | endif | |
649 | ||
650 | ||
28f540f4 RM |
651 | +gnu-stabs = $(shell echo>&2 '*** BARF ON ME') |
652 | ||
96bda0ea RM |
653 | ifndef BUILD_CC |
654 | BUILD_CC = $(CC) | |
655 | endif | |
e72bfd87 UD |
656 | |
657 | move-if-change = $(SHELL) $(..)scripts/move-if-change | |
a641835a | 658 | \f |
9a0a462c | 659 | |
4de1d597 RM |
660 | ifeq (yes, $(build-shared)) |
661 | ||
662 | # Process the shlib-versions file, which tells us what shared library | |
663 | # version numbers to use when we install shared objects on this system. | |
664 | -include $(common-objpfx)soversions.mk | |
eca3eb3b | 665 | ifndef avoid-generated |
4de1d597 | 666 | $(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makeconfig \ |
edf5b2d7 UD |
667 | $(wildcard $(patsubst %, $(..)%/shlib-versions,\ |
668 | $(add-ons))) \ | |
4de1d597 | 669 | $(common-objpfx)config.make |
ec4b0518 UD |
670 | (file="$(wildcard $(patsubst %,$(..)%/shlib-versions,$(add-ons))) \ |
671 | $(..)shlib-versions"; \ | |
edf5b2d7 | 672 | for f in $$file; do \ |
8a523922 UD |
673 | sed 's/#.*$$//' $$f | while read conf versions; do \ |
674 | test -n "$$versions" && \ | |
675 | test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \ | |
676 | : "$$conf"` != 0 || continue; \ | |
edf5b2d7 UD |
677 | for v in $$versions; do \ |
678 | lib=`echo $$v | sed 's/=.*$$//'`; \ | |
679 | if eval "test -z \"\$$vers_lib$$lib\""; then \ | |
680 | eval vers_lib$${lib}=yes; \ | |
d41c6f61 UD |
681 | number=`echo $$v | sed "s/^.*=//"`; \ |
682 | case $$number in \ | |
ba1ffaa1 UD |
683 | [0-9]*) echo "$$lib.so-version=.$$number"; \ |
684 | echo "all-sonames+=$$lib.so\$$($$lib.so-version)";;\ | |
685 | *) echo "$$lib.so-version=$$number"; \ | |
686 | echo "all-sonames+=\$$($$lib.so-version)";; \ | |
8a523922 | 687 | esac; \ |
edf5b2d7 | 688 | fi; \ |
8a523922 UD |
689 | done; \ |
690 | done; \ | |
edf5b2d7 | 691 | done;) > $@T; exit 0 |
4de1d597 | 692 | mv -f $@T $@ |
eca3eb3b UD |
693 | endif |
694 | ||
695 | postclean-generated += soversions.mk | |
4de1d597 | 696 | |
c0e45674 UD |
697 | # Generate the header containing the names of all shared libraries. |
698 | # We use a stamp file to avoid uncessary recompilations. | |
699 | before-compile += $(common-objpfx)gnu/lib-names.h | |
60c34a30 | 700 | $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @: |
c0e45674 UD |
701 | $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk |
702 | $(make-target-directory) | |
703 | @rm -f ${@:stmp=T} $@ | |
704 | (echo '/* This file is automatically generated.';\ | |
705 | echo ' It defines macros to allow user program to find the shared';\ | |
706 | echo ' library files which come as part of GNU libc. */';\ | |
707 | echo '#ifndef __GNU_LIB_NAMES_H'; \ | |
708 | echo '#define __GNU_LIB_NAMES_H 1'; \ | |
709 | echo; \ | |
710 | (libs='$(all-sonames)';\ | |
711 | for l in $$libs; do \ | |
712 | upname=`echo $$l | sed 's/[.]so.*//' | \ | |
7cc27f44 UD |
713 | tr 'abcdefghijklmnopqrstuvwxyz-' \ |
714 | 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \ | |
c0e45674 UD |
715 | echo "#define $${upname}_SO \"$$l\""; \ |
716 | done;) | sort; \ | |
717 | echo; \ | |
718 | echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T} | |
7e7a548e | 719 | $(move-if-change) ${@:stmp=T} ${@:stmp=h} |
c0e45674 UD |
720 | touch $@ |
721 | ||
722 | common-generated += gnu/lib-names.h gnu/lib-names.stmp | |
d41c6f61 UD |
723 | |
724 | # The name under which the run-time dynamic linker is installed. | |
725 | # We are currently going for the convention that `/lib/ld.so.1' | |
726 | # names the SVR4/ELF ABI-compliant dynamic linker. | |
727 | ifndef rtld-installed-name | |
728 | ifdef ld.so-version | |
729 | rtld-installed-name = $(ld.so-version) | |
730 | else | |
731 | rtld-installed-name = ld.so.1 | |
732 | endif | |
733 | endif | |
734 | ||
1ef32c3d UD |
735 | ifndef rtld-version-installed-name |
736 | rtld-version-installed-name = ld-$(version).so | |
737 | endif | |
738 | ||
f649c201 UD |
739 | endif # build-shared |
740 | ||
cbdee279 UD |
741 | ifneq (,$(findstring linuxthreads,$(add-ons))) |
742 | shared-thread-library = $(common-objpfx)linuxthreads/libpthread.so | |
f649c201 UD |
743 | static-thread-library = $(common-objpfx)linuxthreads/libpthread.a |
744 | have-thread-library = yes | |
e72bfd87 | 745 | rpath-dirs += linuxthreads |
cbdee279 UD |
746 | endif |
747 | ||
b22fc5f5 UD |
748 | ifndef avoid-generated |
749 | -include $(common-objpfx)sysd-dirs | |
750 | define \n | |
751 | ||
752 | ||
753 | endef | |
754 | sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs)) | |
755 | endif | |
756 | ||
757 | # These are the subdirectories containing the library source. | |
758 | subdirs = csu assert ctype db2 locale intl catgets math setjmp signal stdlib \ | |
759 | stdio-common $(stdio) malloc string wcsmbs time dirent grp pwd \ | |
760 | posix io termios resource misc socket sysvipc gmon gnulib iconv \ | |
761 | iconvdata wctype manual shadow md5-crypt po argp $(add-ons) nss \ | |
762 | localedata timezone rt $(sysdep-subdirs) $(binfmt-subdir) | |
763 | ||
764 | # The mach and hurd subdirectories have many generated header files which | |
765 | # much of the rest of the library depends on, so it is best to build them | |
766 | # first (and mach before hurd, at that). The before-compile additions in | |
767 | # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files | |
768 | # not to exist when making in other directories, but it will be slower that | |
769 | # way with more somewhat expensive `make' invocations. | |
770 | subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \ | |
771 | $(filter-out mach hurd,$(subdirs)) | |
772 | ||
773 | all-Subdirs-files = $(wildcard $(addsuffix /Subdirs, $(config-sysdirs))) | |
774 | $(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files) | |
775 | (echo define sysdep-subdirs; \ | |
776 | sed 's/#.*$$//' $(all-Subdirs-files) /dev/null; \ | |
777 | echo endef) > $@-tmp | |
778 | mv -f $@-tmp $@ | |
779 | ||
28f540f4 | 780 | endif # Makeconfig not yet included |