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5290baf0 | 1 | # Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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) $(@F) --recheck; else \ |
119 | echo The GNU C library has not been configured. >&2; \ | |
120 | echo Run \`configure\' to configure it before building. >&2; \ | |
121 | echo Try \`configure --help\' for more details. >&2; \ | |
122 | exit 1; fi | |
28f540f4 RM |
123 | |
124 | # Get the user's configuration parameters. | |
125 | ifneq ($(wildcard $(..)configparms),) | |
126 | include $(..)configparms | |
127 | endif | |
128 | ifneq ($(objpfx),) | |
6e953631 UD |
129 | ifneq ($(wildcard $(common-objpfx)configparms),) |
130 | include $(common-objpfx)configparms | |
28f540f4 RM |
131 | endif |
132 | endif | |
28f540f4 RM |
133 | \f |
134 | #### | |
135 | #### These are the configuration variables. You can define values for | |
136 | #### the variables below in the file `configparms'. | |
137 | #### Do NOT edit this file. | |
138 | #### | |
139 | ||
140 | ||
deab9dea RM |
141 | # Set this to either `stdio' or `libio', to compile in either GNU stdio |
142 | # or GNU libio. | |
143 | ifndef stdio | |
144 | stdio = stdio | |
145 | endif | |
146 | ||
28f540f4 | 147 | # Common prefix for machine-independent installation directories. |
487253ea | 148 | ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value. |
28f540f4 RM |
149 | prefix = /usr/local |
150 | endif | |
151 | ||
0413b54c UD |
152 | # Decide whether we shall build the programs or not. We always do this |
153 | # unless the user tells us (in configparms) or we are building for a | |
154 | # standalone target. | |
155 | ifndef build-programs | |
156 | ifneq ($(config-os),none) | |
157 | build-programs=yes | |
158 | else | |
159 | build-programs=no | |
160 | endif | |
161 | endif | |
162 | ||
28f540f4 | 163 | # Common prefix for machine-dependent installation directories. |
487253ea | 164 | ifeq ($(origin exec_prefix),undefined) |
28f540f4 RM |
165 | exec_prefix = $(prefix) |
166 | endif | |
167 | ||
168 | # Where to install the library and object files. | |
169 | ifndef libdir | |
170 | libdir = $(exec_prefix)/lib | |
171 | endif | |
8d57beea | 172 | inst_libdir = $(install_root)$(libdir) |
28f540f4 | 173 | |
094bacdb RM |
174 | # Where to install the shared library and dynamic linker. |
175 | ifndef slibdir | |
176 | slibdir = $(exec_prefix)/lib | |
177 | endif | |
8d57beea | 178 | inst_slibdir = $(install_root)$(slibdir) |
094bacdb | 179 | |
28f540f4 RM |
180 | # Prefix to put on files installed in $(libdir). For libraries `libNAME.a', |
181 | # the prefix is spliced between `lib' and the name, so the linker switch | |
182 | # `-l$(libprefix)NAME' finds the library; for other files the prefix is | |
183 | # just prepended to the whole file name. | |
487253ea | 184 | ifeq ($(origin libprefix),undefined) |
28f540f4 RM |
185 | libprefix = |
186 | endif | |
187 | ||
188 | # Where to install the header files. | |
189 | ifndef includedir | |
190 | includedir = $(exec_prefix)/include | |
191 | endif | |
8d57beea | 192 | inst_includedir = $(install_root)$(includedir) |
28f540f4 | 193 | |
28f540f4 | 194 | # Where to install machine-independent data files. |
a2fe9c76 | 195 | # These are the timezone database, and the locale database. |
28f540f4 RM |
196 | ifndef datadir |
197 | datadir = $(prefix)/share | |
198 | endif | |
8d57beea | 199 | inst_datadir = $(install_root)$(datadir) |
28f540f4 RM |
200 | |
201 | # Where to install the timezone data files (which are machine-independent). | |
202 | ifndef zonedir | |
203 | zonedir = $(datadir)/zoneinfo | |
204 | endif | |
8d57beea | 205 | inst_zonedir = $(install_root)$(zonedir) |
28f540f4 | 206 | |
3ec41e03 RM |
207 | # Where to install the locale and message catalog data files (which are |
208 | # machine-independent). | |
a2fe9c76 RM |
209 | ifndef localedir |
210 | localedir = $(datadir)/locale | |
211 | endif | |
8d57beea | 212 | inst_localedir = $(install_root)$(localedir) |
a2fe9c76 | 213 | |
3ec41e03 | 214 | # Where to install the locale charmap source files. |
19bc17a9 RM |
215 | ifndef i18ndir |
216 | i18ndir = $(datadir)/i18n | |
a2fe9c76 | 217 | endif |
8d57beea | 218 | inst_i18ndir = $(install_root)$(i18ndir) |
a2fe9c76 RM |
219 | |
220 | ||
28f540f4 RM |
221 | # Where to install programs. |
222 | ifndef bindir | |
223 | bindir = $(exec_prefix)/bin | |
224 | endif | |
8d57beea | 225 | inst_bindir = $(install_root)$(bindir) |
28f540f4 RM |
226 | |
227 | # Where to install administrative programs. | |
1ef32c3d UD |
228 | ifndef rootsbindir |
229 | rootsbindir = $(exec_prefix)/sbin | |
230 | endif | |
8d57beea | 231 | inst_rootsbindir = $(install_root)$(rootsbindir) |
1ef32c3d | 232 | |
28f540f4 RM |
233 | ifndef sbindir |
234 | sbindir = $(exec_prefix)/sbin | |
235 | endif | |
8d57beea | 236 | inst_sbindir = $(install_root)$(sbindir) |
28f540f4 RM |
237 | |
238 | # Where to install the Info files. | |
239 | ifndef infodir | |
240 | infodir = $(prefix)/info | |
241 | endif | |
8d57beea | 242 | inst_infodir = $(install_root)$(infodir) |
28f540f4 RM |
243 | |
244 | # Where to install default configuration files. These include the local | |
245 | # timezone specification and network data base files. | |
246 | ifndef sysconfdir | |
247 | sysconfdir = $(prefix)/etc | |
248 | endif | |
8d57beea | 249 | inst_sysconfdir = $(install_root)$(sysconfdir) |
28f540f4 RM |
250 | |
251 | # What timezone should be the installed default (e.g., US/Eastern). | |
252 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
253 | # The local timezone can be changed with `zic -l TIMEZONE' at any time. | |
254 | ifndef localtime | |
255 | localtime = Factory | |
256 | endif | |
257 | ||
258 | # Where to install the "localtime" timezone file; this is the file whose | |
259 | # contents $(localtime) specifies. If this is a relative pathname, it is | |
260 | # relative to $(zonedir). It is a good idea to put this somewhere | |
261 | # other than there, so the zoneinfo directory contains only universal data, | |
262 | # localizing the configuration data elsewhere. | |
263 | ifndef localtime-file | |
0d8733c4 UD |
264 | localtime-file = $(sysconfdir)/localtime |
265 | inst_localtime-file = $(install_root)$(localtime-file) | |
28f540f4 RM |
266 | endif |
267 | ||
59dd8641 RM |
268 | # What to use for leap second specifications in compiling the default |
269 | # timezone files. Set this to `/dev/null' for no leap second handling as | |
270 | # 1003.1 requires, or to `leapseconds' for proper leap second handling. | |
271 | # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'. | |
272 | # This variable determines the default: if it's `/dev/null', | |
273 | # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE. | |
274 | ifndef leapseconds | |
275 | leapseconds = /dev/null | |
276 | endif | |
277 | ||
28f540f4 RM |
278 | # What timezone's DST rules should be used when a POSIX-style TZ |
279 | # environment variable doesn't specify any rules. For 1003.1 compliance | |
280 | # this timezone must use rules that are as U.S. federal law defines DST. | |
281 | # Run `make -C time echo-zonenames' to see a list of available zone names. | |
282 | # This setting can be changed with `zic -p TIMEZONE' at any time. | |
283 | # If you want POSIX.1 compatibility, use `America/New_York'. | |
284 | ifndef posixrules | |
285 | posixrules = America/New_York | |
286 | endif | |
287 | ||
288 | # Where to install the "posixrules" timezone file; this is file | |
289 | # whose contents $(posixrules) specifies. If this is a relative | |
290 | # pathname, it is relative to $(zonedir). | |
291 | ifndef posixrules-file | |
292 | posixrules-file = posixrules | |
293 | endif | |
294 | ||
295 | ||
296 | # Directory where your system's native header files live. | |
297 | # This is used on Unix systems to generate some GNU libc header files. | |
298 | ifndef sysincludedir | |
299 | sysincludedir = /usr/include | |
300 | endif | |
301 | ||
302 | ||
303 | # Commands to install files. | |
304 | ifndef INSTALL_DATA | |
305 | INSTALL_DATA = $(INSTALL) -m 644 | |
306 | endif | |
307 | ifndef INSTALL_PROGRAM | |
308 | INSTALL_PROGRAM = $(INSTALL) | |
309 | endif | |
310 | ifndef INSTALL | |
311 | INSTALL = install | |
312 | endif | |
313 | ||
314 | ||
315 | # The name of the C compiler. | |
316 | # If you've got GCC, and it works, use it. | |
317 | ifeq ($(origin CC),default) | |
318 | CC := gcc | |
319 | endif | |
320 | ||
321 | # The name of the C compiler to use for compilations of programs to run on | |
322 | # the host that is building the library. If you set CC to a | |
323 | # cross-compiler, you must set this to the normal compiler. | |
324 | ifndef BUILD_CC | |
325 | BUILD_CC = $(CC) | |
326 | endif | |
327 | ||
328 | # Default flags to pass the C compiler. | |
329 | ifndef default_cflags | |
a8922de8 | 330 | default_cflags := -g -O |
28f540f4 RM |
331 | endif |
332 | ||
333 | # Flags to pass the C compiler when assembling preprocessed assembly code | |
334 | # (`.S' files). On some systems the assembler doesn't understand the `#' line | |
335 | # directives the preprocessor produces. If you have troubling compiling | |
336 | # assembly code, try using -P here to suppress these directives. | |
337 | ifndef asm-CPPFLAGS | |
338 | asm-CPPFLAGS = | |
339 | endif | |
340 | ||
9a0a462c UD |
341 | # ELF always supports init/fini sections |
342 | ifeq ($(elf),yes) | |
343 | have-initfini = yes | |
344 | endif | |
345 | ||
779ae82e | 346 | # Installed name of the startup code. |
9a0a462c UD |
347 | ifneq ($(have-initfini),yes) |
348 | # When not having init/fini, there is just one startfile, called crt0.o. | |
779ae82e UD |
349 | start-installed-name = crt0.o |
350 | else | |
9a0a462c | 351 | # On systems having init/fini, crt0.o is called crt1.o, and there are |
779ae82e UD |
352 | # some additional bizarre files. |
353 | start-installed-name = crt1.o | |
779ae82e UD |
354 | endif |
355 | ||
356 | ||
28f540f4 RM |
357 | # Command for linking programs with the C library. |
358 | ifndef +link | |
8e3cc80f RM |
359 | +link = $(CC) -nostdlib -nostartfiles -o $@ \ |
360 | $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS) \ | |
779ae82e UD |
361 | $(addprefix $(csu-objpfx),$(start-installed-name)) \ |
362 | $(+preinit) $(+prector) \ | |
363 | $(filter-out $(addprefix $(csu-objpfx),start.o \ | |
364 | $(start-installed-name))\ | |
365 | $(+preinit) $(link-extra-libs) \ | |
366 | $(common-objpfx)libc% $(+postinit),$^) \ | |
5ae9d168 | 367 | $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit) |
28f540f4 | 368 | endif |
b122c703 RM |
369 | ifndef config-LDFLAGS |
370 | ifeq (yes,$(build-shared)) | |
094bacdb | 371 | config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name) |
b122c703 RM |
372 | endif |
373 | endif | |
3fe9de0d RM |
374 | ifndef link-libc |
375 | ifeq (yes,$(build-shared)) | |
aa1075ea RM |
376 | # We need the versioned name of libc.so in the deps of $(others) et al |
377 | # so that the symlink to libc.so is created before anything tries to | |
378 | # run the linked programs. | |
4d6acc61 | 379 | link-libc = -Wl,-rpath-link=$(rpath-link) \ |
aa1075ea | 380 | $(common-objpfx)libc.so$(libc.so-version) \ |
852fc4b9 | 381 | $(elfobjdir)/$(rtld-installed-name) \ |
aa1075ea | 382 | $(common-objpfx)libc.a $(gnulib) |
4cb20290 RM |
383 | # Choose the default search path for the dynamic linker based on |
384 | # where we will install libraries. | |
385 | ifneq ($(libdir),$(slibdir)) | |
386 | default-rpath = $(slibdir):$(libdir) | |
387 | else | |
388 | default-rpath = $(libdir) | |
389 | endif | |
4d6acc61 | 390 | # This is how to find at build-time things that will be installed there. |
2d7da676 | 391 | rpath-link = $(common-objdir):$(mathobjdir):$(elfobjdir):$(nssobjdir):$(dbobjdir) |
c57abfa7 | 392 | mathobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)math) |
47707456 | 393 | elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf) |
6e953631 | 394 | nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss) |
26b4d766 | 395 | dbobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)db2) |
3fe9de0d RM |
396 | else |
397 | link-libc = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a | |
398 | endif | |
399 | endif | |
900bec85 | 400 | |
57ba7bb4 UD |
401 | ifndef link-extra-libs |
402 | ifeq (yes,$(build-shared)) | |
c57abfa7 UD |
403 | ifneq ($(common-objpfx),$(objpfx)) |
404 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\ | |
405 | $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \ | |
406 | $(objpfx)$(lib).so$($(notdir $(lib)).so-version))) | |
407 | else | |
57ba7bb4 | 408 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version)) |
c57abfa7 | 409 | endif |
57ba7bb4 UD |
410 | else |
411 | link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a) | |
412 | endif | |
413 | endif | |
28f540f4 RM |
414 | ifndef gnulib |
415 | gnulib := -lgcc | |
416 | endif | |
96f873b9 | 417 | ifeq ($(elf),yes) |
e75154a6 RM |
418 | +preinit = $(addprefix $(csu-objpfx),crti.o) |
419 | +postinit = $(addprefix $(csu-objpfx),crtn.o) | |
5ae9d168 UD |
420 | +prector = `$(CC) --print-file-name=crtbegin.o` |
421 | +postctor = `$(CC) --print-file-name=crtend.o` | |
96f873b9 | 422 | endif |
6e953631 UD |
423 | csu-objpfx = $(common-objpfx)csu/ |
424 | elf-objpfx = $(common-objpfx)elf/ | |
57ba7bb4 | 425 | db-objpfx = $(common-objpfx)db/ |
28f540f4 | 426 | |
03a75825 RM |
427 | # How to run a program we just linked with our library. |
428 | # The program binary is assumed to be $(word 2,$^). | |
429 | built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^)) | |
430 | ifneq (yes,$(build-shared)) | |
431 | built-program-cmd = $(built-program-file) | |
432 | else | |
196980f5 | 433 | comma = , |
11336c16 UD |
434 | sysdep-library-path = \ |
435 | $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\ | |
436 | $(filter -Wl$(comma)-rpath-link=%,\ | |
437 | $(sysdep-LDFLAGS))))) | |
03a75825 | 438 | define built-program-cmd |
11336c16 | 439 | LD_LIBRARY_PATH=$(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \ |
96bda0ea | 440 | $(elf-objpfx)$(rtld-installed-name) $(built-program-file) |
03a75825 RM |
441 | endef |
442 | endif | |
443 | ||
28f540f4 RM |
444 | ifndef LD |
445 | LD := ld -X | |
446 | endif | |
447 | ||
448 | ifndef RANLIB | |
449 | RANLIB = ranlib | |
450 | endif | |
451 | ||
452 | # Extra flags to pass to GCC. | |
522548fb | 453 | +gccwarn := -Wall -Wwrite-strings -Wno-parentheses -Winline -Wstrict-prototypes |
28f540f4 RM |
454 | |
455 | # This is the program that generates makefile | |
456 | # dependencies from C source files. | |
457 | ifndef +mkdep | |
458 | +mkdep = $(CC) -M | |
459 | endif | |
460 | ||
461 | # The program that makes Emacs-style TAGS files. | |
462 | ETAGS := etags -T | |
463 | ||
464 | # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and | |
465 | # perhaps others) to preprocess assembly code in some cases. | |
466 | M4 = m4 | |
467 | ||
468 | #### | |
469 | #### End of configuration variables. | |
470 | #### | |
471 | \f | |
472 | # This tells some versions of GNU make before 3.63 not to export all variables. | |
473 | .NOEXPORT: | |
474 | ||
475 | # We want to echo the commands we're running without | |
6d52618b | 476 | # umpteen zillion filenames along with it (we use `...' instead) |
28f540f4 RM |
477 | # but we don't want this echoing done when the user has said |
478 | # he doesn't want to see commands echoed by using -s. | |
479 | ifneq "$(findstring s,$(MAKEFLAGS))" "" # if -s | |
480 | +cmdecho := echo >/dev/null | |
481 | else # not -s | |
482 | +cmdecho := echo | |
483 | endif # -s | |
484 | ||
485 | # These are the flags given to the compiler to tell | |
486 | # it what sort of optimization and/or debugging output to do. | |
487 | ifndef +cflags | |
488 | # If `CFLAGS' was defined, use that. | |
489 | ifdef CFLAGS | |
490 | +cflags := $(filter-out -I%,$(CFLAGS)) | |
491 | endif # CFLAGS | |
492 | endif # +cflags | |
493 | ||
fd26970f | 494 | # If none of the above worked, default to "-g -O". |
28f540f4 RM |
495 | ifeq "$(strip $(+cflags))" "" |
496 | +cflags := $(default_cflags) | |
497 | endif # $(+cflags) == "" | |
498 | ||
28f540f4 RM |
499 | +cflags := $(+cflags) $(+gccwarn) |
500 | +gcc-nowarn := -w | |
28f540f4 RM |
501 | |
502 | # Don't duplicate options if we inherited variables from the parent. | |
503 | +cflags := $(sort $(+cflags)) | |
504 | ||
505 | ||
506 | # These are flags given to the C compiler to tell it to look for include | |
762a2918 UD |
507 | # files (including ones given in angle brackets) in the current directory, |
508 | # in the parent library source directory and in the include directory. | |
28f540f4 | 509 | # `+sysdep-includes' will be defined by Makerules. |
dfd2257a UD |
510 | +includes = -I. $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \ |
511 | -I$(..)include $($(stdio)-include) $(includes) \ | |
512 | $(+sysdep-includes) $(last-includes) | |
28f540f4 | 513 | |
96aa2d94 | 514 | # Since libio has several internal header files, we use a -I instead |
762a2918 | 515 | # of many little headers in the include directory. |
96aa2d94 | 516 | libio-include = -I$(..)libio |
28f540f4 RM |
517 | |
518 | # These are the variables that the implicit compilation rules use. | |
5107cf1d | 519 | CPPFLAGS = $(+includes) $(defines) -include $(..)include/libc-symbols.h \ |
8a4b65b4 UD |
520 | $(sysdep-CPPFLAGS) $(CPPFLAGS-$(suffix $@)) $(CPPFLAGS-$(<F)) \ |
521 | $(CPPFLAGS-$(@F)) | |
d99d7e26 | 522 | override CFLAGS = $(+cflags) $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@)) \ |
8a4b65b4 | 523 | $(CFLAGS-$(<F)) $(CFLAGS-$(@F)) |
28f540f4 RM |
524 | |
525 | ||
526 | # This is the macro that the implicit linking rules use. | |
527 | ifneq "$(filter -g,$(+cflags))" "" # -g is in $(+cflags) | |
528 | LDFLAGS := -g | |
529 | endif | |
530 | ||
f0bf9cb9 | 531 | |
cc3fa755 UD |
532 | # If everything is compiled with -fPIC (implicitly) we must tell this by |
533 | # defining the PIC symbol. | |
534 | ifeq (yes,$(build-pic-default)) | |
535 | pic-default = -DPIC | |
536 | endif | |
537 | ||
f0bf9cb9 RM |
538 | # Enable object files for different versions of the library. |
539 | # Various things use $(object-suffixes) to know what all to make. | |
540 | # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX}) | |
541 | # to pass different flags for each flavor. | |
542 | libtypes = $(foreach o,$(object-suffixes),$(libtype$o)) | |
40a55d20 | 543 | all-object-suffixes := .o .os .op .og .ob |
650425ce UD |
544 | object-suffixes := |
545 | ifeq (yes,$(build-static)) | |
cc3fa755 | 546 | CPPFLAGS-.o = $(pic-default) |
f0bf9cb9 | 547 | libtype.o := lib%.a |
650425ce UD |
548 | object-suffixes += .o |
549 | endif | |
f0bf9cb9 RM |
550 | ifeq (yes,$(build-shared)) |
551 | # Under --enable-shared, we will build a shared library of PIC objects. | |
40a55d20 UD |
552 | # The PIC object files are named foo.os. |
553 | object-suffixes += .os | |
554 | CPPFLAGS-.os = -DPIC | |
26b4d766 | 555 | CFLAGS-.os = $(pic-ccflag) -fno-common |
40a55d20 | 556 | libtype.os := lib%_pic.a |
26b4d766 UD |
557 | # This can be changed by a sysdep makefile |
558 | pic-ccflag = -fPIC | |
f0bf9cb9 RM |
559 | endif |
560 | ifeq (yes,$(build-profile)) | |
561 | # Under --enable-profile, we will build a static library of profiled objects. | |
40a55d20 UD |
562 | # The profiled object files are named foo.op. |
563 | object-suffixes += .op | |
cc3fa755 | 564 | CPPFLAGS-.op = -DPROF $(pic-default) |
40a55d20 UD |
565 | CFLAGS-.op = -pg |
566 | libtype.op = lib%_p.a | |
f0bf9cb9 RM |
567 | endif |
568 | ifeq (yes,$(build-omitfp)) | |
569 | # Under --enable-omitfp, we build an the library optimized without | |
570 | # debugging information using -fomit-frame-pointer, and build an extra | |
40a55d20 UD |
571 | # library with debugging information. The debuggable objects are named foo.og. |
572 | object-suffixes += .og | |
cc3fa755 | 573 | CPPFLAGS-.og = $(pic-default) |
40a55d20 | 574 | CFLAGS-.og = -g |
92f1da4d | 575 | CFLAGS-.o = -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES |
40a55d20 UD |
576 | CFLAGS-.os += $(CFLAGS-.o) |
577 | libtype.og = lib%_g.a | |
f0bf9cb9 | 578 | endif |
5a97622d UD |
579 | ifeq (yes,$(build-bounded)) |
580 | # Under --enable-bounded, we build the library with `-fbounded-pointers -g' | |
40a55d20 UD |
581 | # to runtime bounds checking. The bounded-pointer objects are named foo.ob. |
582 | object-suffixes += .ob | |
cc3fa755 | 583 | CPPFLAGS-.ob = -DBOUNDED_POINTERS $(pic-default) |
40a55d20 UD |
584 | CFLAGS-.ob = -g -fbounded-pointers |
585 | libtype.ob = lib%_b.a | |
5a97622d | 586 | endif |
f0bf9cb9 RM |
587 | |
588 | ||
28f540f4 RM |
589 | +gnu-stabs = $(shell echo>&2 '*** BARF ON ME') |
590 | ||
96bda0ea RM |
591 | ifndef BUILD_CC |
592 | BUILD_CC = $(CC) | |
593 | endif | |
a641835a RM |
594 | \f |
595 | # Figure out the version numbers from version.h. | |
28f540f4 | 596 | |
0e3426bb RM |
597 | $(common-objpfx)version.mk: $(..)version.h $(..)Makeconfig |
598 | sed -n -e 's/^.*RELEASE.*"\([^"]*\)".*$$/release=\1/p' \ | |
599 | -e 's/^.*VERSION.*"\([^"]*\)".*$$/version=\1/p' \ | |
a641835a RM |
600 | < $< > $@-new |
601 | mv -f $@-new $@ | |
28f540f4 | 602 | |
9a0a462c UD |
603 | common-generated += version.mk |
604 | ||
4de1d597 RM |
605 | ifeq (yes, $(build-shared)) |
606 | ||
607 | # Process the shlib-versions file, which tells us what shared library | |
608 | # version numbers to use when we install shared objects on this system. | |
609 | -include $(common-objpfx)soversions.mk | |
610 | $(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makeconfig \ | |
edf5b2d7 UD |
611 | $(wildcard $(patsubst %, $(..)%/shlib-versions,\ |
612 | $(add-ons))) \ | |
4de1d597 | 613 | $(common-objpfx)config.make |
ec4b0518 UD |
614 | (file="$(wildcard $(patsubst %,$(..)%/shlib-versions,$(add-ons))) \ |
615 | $(..)shlib-versions"; \ | |
edf5b2d7 | 616 | for f in $$file; do \ |
8a523922 UD |
617 | sed 's/#.*$$//' $$f | while read conf versions; do \ |
618 | test -n "$$versions" && \ | |
619 | test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \ | |
620 | : "$$conf"` != 0 || continue; \ | |
edf5b2d7 UD |
621 | for v in $$versions; do \ |
622 | lib=`echo $$v | sed 's/=.*$$//'`; \ | |
623 | if eval "test -z \"\$$vers_lib$$lib\""; then \ | |
624 | eval vers_lib$${lib}=yes; \ | |
d41c6f61 UD |
625 | number=`echo $$v | sed "s/^.*=//"`; \ |
626 | case $$number in \ | |
ba1ffaa1 UD |
627 | [0-9]*) echo "$$lib.so-version=.$$number"; \ |
628 | echo "all-sonames+=$$lib.so\$$($$lib.so-version)";;\ | |
629 | *) echo "$$lib.so-version=$$number"; \ | |
630 | echo "all-sonames+=\$$($$lib.so-version)";; \ | |
8a523922 | 631 | esac; \ |
edf5b2d7 | 632 | fi; \ |
8a523922 UD |
633 | done; \ |
634 | done; \ | |
edf5b2d7 | 635 | done;) > $@T; exit 0 |
4de1d597 RM |
636 | mv -f $@T $@ |
637 | ||
638 | # Get $(version) defined with the release version number. | |
639 | -include $(common-objpfx)version.mk | |
640 | ||
c0e45674 UD |
641 | # Generate the header containing the names of all shared libraries. |
642 | # We use a stamp file to avoid uncessary recompilations. | |
643 | before-compile += $(common-objpfx)gnu/lib-names.h | |
644 | $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp | |
645 | $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk | |
646 | $(make-target-directory) | |
647 | @rm -f ${@:stmp=T} $@ | |
648 | (echo '/* This file is automatically generated.';\ | |
649 | echo ' It defines macros to allow user program to find the shared';\ | |
650 | echo ' library files which come as part of GNU libc. */';\ | |
651 | echo '#ifndef __GNU_LIB_NAMES_H'; \ | |
652 | echo '#define __GNU_LIB_NAMES_H 1'; \ | |
653 | echo; \ | |
654 | (libs='$(all-sonames)';\ | |
655 | for l in $$libs; do \ | |
656 | upname=`echo $$l | sed 's/[.]so.*//' | \ | |
7cc27f44 UD |
657 | tr 'abcdefghijklmnopqrstuvwxyz-' \ |
658 | 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \ | |
c0e45674 UD |
659 | echo "#define $${upname}_SO \"$$l\""; \ |
660 | done;) | sort; \ | |
661 | echo; \ | |
662 | echo '#endif /* gnu/lib-names.h */';) > ${@:stmp=T} | |
663 | if test -r ${@:stmp=h} && cmp -s ${@:stmp=h} ${@:stmp=T}; \ | |
664 | then rm -f ${@:stmp=T}; \ | |
665 | else mv -f ${@:stmp=T} ${@:stmp=h}; fi | |
666 | touch $@ | |
667 | ||
668 | common-generated += gnu/lib-names.h gnu/lib-names.stmp | |
d41c6f61 UD |
669 | |
670 | # The name under which the run-time dynamic linker is installed. | |
671 | # We are currently going for the convention that `/lib/ld.so.1' | |
672 | # names the SVR4/ELF ABI-compliant dynamic linker. | |
673 | ifndef rtld-installed-name | |
674 | ifdef ld.so-version | |
675 | rtld-installed-name = $(ld.so-version) | |
676 | else | |
677 | rtld-installed-name = ld.so.1 | |
678 | endif | |
679 | endif | |
680 | ||
1ef32c3d UD |
681 | ifndef rtld-version-installed-name |
682 | rtld-version-installed-name = ld-$(version).so | |
683 | endif | |
684 | ||
4de1d597 RM |
685 | endif # build-shared |
686 | ||
28f540f4 | 687 | endif # Makeconfig not yet included |