]>
Commit | Line | Data |
---|---|---|
f4017d20 | 1 | dnl Process this file with autoconf to produce a configure script. |
ff3d7ed3 | 2 | AC_REVISION([$CVSid$]) |
3a12e572 | 3 | AC_PREREQ(2.53)dnl dnl Minimum Autoconf version required. |
5d77b1da RM |
4 | AC_INIT([GNU C Library], [(see version.h)], [glibc]) |
5 | AC_CONFIG_SRCDIR([include/features.h]) | |
6b7f6183 RM |
6 | AC_CONFIG_HEADERS([config.h]) |
7 | AC_CONFIG_AUX_DIR([scripts]) | |
28f540f4 | 8 | |
7967983f RM |
9 | dnl This is here so we can set $subdirs directly based on configure fragments. |
10 | AC_CONFIG_SUBDIRS() | |
11 | ||
c16a054d AS |
12 | AC_CANONICAL_HOST |
13 | ||
c0bac8b0 UD |
14 | AC_PROG_CC |
15 | if test $host != $build; then | |
16 | AC_CHECK_PROGS(BUILD_CC, gcc cc) | |
17 | fi | |
18 | AC_SUBST(cross_compiling) | |
19 | AC_PROG_CPP | |
20 | # We need the C++ compiler only for testing. | |
21 | AC_PROG_CXX | |
22 | ||
c72637d4 RM |
23 | if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then |
24 | AC_MSG_ERROR([you must configure in a separate build directory]) | |
25 | fi | |
26 | ||
28f540f4 RM |
27 | # This will get text that should go into config.make. |
28 | config_vars= | |
29 | ||
c8f3e6db | 30 | # Check for a --with-gd argument and set libgd-LDFLAGS in config.make. |
6b7f6183 RM |
31 | AC_ARG_WITH([gd], |
32 | AC_HELP_STRING([--with-gd=DIR], | |
33 | [find libgd include dir and library with prefix DIR]), | |
c8f3e6db UD |
34 | [dnl |
35 | case "$with_gd" in | |
f5f7239f UD |
36 | yes|''|no) ;; |
37 | *) libgd_include="-I$withval/include" | |
c8f3e6db UD |
38 | libgd_ldflags="-L$withval/lib" ;; |
39 | esac | |
40 | ]) | |
6b7f6183 RM |
41 | AC_ARG_WITH([gd-include], |
42 | AC_HELP_STRING([--with-gd-include=DIR], | |
43 | [find libgd include files in DIR]), | |
f5f7239f UD |
44 | [dnl |
45 | case "$with_gd_include" in | |
46 | ''|no) ;; | |
47 | *) libgd_include="-I$withval" ;; | |
48 | esac | |
49 | ]) | |
6b7f6183 RM |
50 | AC_ARG_WITH([gd-lib], |
51 | AC_HELP_STRING([--with-gd-lib=DIR], | |
52 | [find libgd library files in DIR]), | |
f5f7239f UD |
53 | [dnl |
54 | case "$with_gd_lib" in | |
55 | ''|no) ;; | |
56 | *) libgd_ldflags="-L$withval" ;; | |
57 | esac | |
58 | ]) | |
59 | ||
60 | if test -n "$libgd_include"; then | |
61 | config_vars="$config_vars | |
cf90163d | 62 | CFLAGS-memusagestat.c = $libgd_include" |
f5f7239f UD |
63 | fi |
64 | if test -n "$libgd_ldflags"; then | |
65 | config_vars="$config_vars | |
66 | libgd-LDFLAGS = $libgd_ldflags" | |
67 | fi | |
28f540f4 | 68 | |
ff3d7ed3 | 69 | dnl Arguments to specify presence of other packages/features. |
6b7f6183 RM |
70 | AC_ARG_WITH([fp], |
71 | AC_HELP_STRING([--with-fp], | |
72 | [if using floating-point hardware @<:@default=yes@:>@]), | |
73 | [with_fp=$withval], | |
74 | [with_fp=yes]) | |
675322a5 | 75 | AC_SUBST(with_fp) |
6b7f6183 RM |
76 | AC_ARG_WITH([binutils], |
77 | AC_HELP_STRING([--with-binutils=PATH], | |
78 | [specify location of binutils (as and ld)]), | |
79 | [path_binutils=$withval], | |
80 | [path_binutils='']) | |
81 | AC_ARG_WITH([elf], | |
82 | AC_HELP_STRING([--with-elf], | |
83 | [if using the ELF object format]), | |
84 | [elf=$withval], | |
85 | [elf=no]) | |
2fff3d93 UD |
86 | AC_ARG_WITH([selinux], |
87 | AC_HELP_STRING([--with-selinux], | |
88 | [if building with SELinux support]), | |
89 | [with_selinux=$withval], | |
90 | [with_selinux=auto]) | |
6b7f6183 RM |
91 | AC_ARG_WITH([xcoff], |
92 | AC_HELP_STRING([--with-xcoff], | |
93 | [if using the XCOFF object format]), | |
94 | [xcoff=$withval], | |
95 | [xcoff=no]) | |
96 | AC_ARG_WITH([cvs], | |
97 | AC_HELP_STRING([--without-cvs], | |
98 | [if CVS should not be used]), | |
99 | [with_cvs=$withval], | |
100 | [with_cvs=yes]) | |
6b3f2b3d UD |
101 | if test "$with_cvs" = yes; then |
102 | if test -d $srcdir/CVS && grep :pserver: $srcdir/CVS/Root > /dev/null | |
103 | then | |
104 | with_cvs=no | |
105 | fi | |
4442d7e8 | 106 | fi |
4d06461a | 107 | AC_SUBST(with_cvs) |
28f540f4 | 108 | |
6b7f6183 RM |
109 | AC_ARG_WITH([headers], |
110 | AC_HELP_STRING([--with-headers=PATH], | |
111 | [location of system headers to use | |
112 | (for example /usr/src/linux/include) | |
113 | @<:@default=compiler default@:>@]), | |
114 | [sysheaders=$withval], | |
115 | [sysheaders='']) | |
dbe7a0f5 | 116 | |
6b7f6183 RM |
117 | AC_ARG_ENABLE([sanity-checks], |
118 | AC_HELP_STRING([--disable-sanity-checks], | |
119 | [really do not use threads (should not be used except in special situations) @<:@default=yes@:>@]), | |
120 | [enable_sanity=$enableval], | |
121 | [enable_sanity=yes]) | |
a18f587d | 122 | |
7dbde9db RM |
123 | AC_SUBST(enable_check_abi) |
124 | AC_ARG_ENABLE([check-abi], | |
fd54683c RM |
125 | AC_HELP_STRING([--enable-check-abi], |
126 | [do "make check-abi" in "make check" (no/warn/yes) | |
127 | @<:@default=no@:>@]), | |
7dbde9db | 128 | [enable_check_abi=$enableval], |
fd54683c | 129 | [enable_check_abi=no]) |
7dbde9db | 130 | |
650425ce UD |
131 | dnl Arguments to enable or disable building the static, shared, profiled, |
132 | dnl and -fomit-frame-pointer libraries. | |
b38bb8ca UD |
133 | dnl I've disabled this for now since we cannot build glibc without static |
134 | dnl libraries built in the moment. | |
6b7f6183 RM |
135 | dnl AC_ARG_ENABLE([static], |
136 | dnl AC_HELP_STRING([--enable-static], | |
137 | dnl [build static library @<:@default=yes@:>@]), | |
138 | dnl [static=$enableval], | |
139 | dnl [static=yes]) | |
5c2a0669 | 140 | static=yes |
6b7f6183 RM |
141 | AC_ARG_ENABLE([shared], |
142 | AC_HELP_STRING([--enable-shared], | |
143 | [build shared library @<:@default=yes if GNU ld & ELF@:>@]), | |
144 | [shared=$enableval], | |
145 | [shared=default]) | |
146 | AC_ARG_ENABLE([profile], | |
147 | AC_HELP_STRING([--enable-profile], | |
11bf311e | 148 | [build profiled library @<:@default=no@:>@]), |
6b7f6183 | 149 | [profile=$enableval], |
11bf311e | 150 | [profile=no]) |
6b7f6183 RM |
151 | AC_ARG_ENABLE([omitfp], |
152 | AC_HELP_STRING([--enable-omitfp], | |
153 | [build undebuggable optimized library @<:@default=no@:>@]), | |
154 | [omitfp=$enableval], | |
155 | [omitfp=no]) | |
156 | AC_ARG_ENABLE([bounded], | |
157 | AC_HELP_STRING([--enable-bounded], | |
158 | [build with runtime bounds checking @<:@default=no@:>@]), | |
159 | [bounded=$enableval], | |
160 | [bounded=no]) | |
161 | AC_ARG_ENABLE([versioning], | |
162 | AC_HELP_STRING([--disable-versioning], | |
163 | [do not include versioning information in the library objects @<:@default=yes if supported@:>@]), | |
164 | [enable_versioning=$enableval], | |
165 | [enable_versioning=yes]) | |
166 | ||
167 | AC_ARG_ENABLE([oldest-abi], | |
168 | AC_HELP_STRING([--enable-oldest-abi=ABI], | |
169 | [configure the oldest ABI supported @<:@e.g. 2.2@:>@ @<:@default=glibc default@:>@]), | |
170 | [oldest_abi=$enableval], | |
171 | [oldest_abi=no]) | |
62ab42d6 UD |
172 | if test "$oldest_abi" = yes || test "$oldest_abi" = no; then |
173 | oldest_abi=default | |
174 | else | |
175 | AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi") | |
176 | fi | |
177 | AC_SUBST(oldest_abi) | |
178 | ||
35f1e827 UD |
179 | AC_ARG_ENABLE([stackguard-randomization], |
180 | AC_HELP_STRING([--enable-stackguard-randomization], | |
181 | [initialize __stack_chk_guard canary with a random number at program start]), | |
182 | [enable_stackguard_randomize=$enableval], | |
183 | [enable_stackguard_randomize=no]) | |
184 | if test "$enable_stackguard_randomize" = yes; then | |
185 | AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE) | |
186 | fi | |
187 | ||
6b3a2224 | 188 | dnl Generic infrastructure for drop-in additions to libc. |
6b7f6183 RM |
189 | AC_ARG_ENABLE([add-ons], |
190 | AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], | |
e0a3ed4f RM |
191 | [configure and build add-ons in DIR1,DIR2,... |
192 | search for add-ons if no parameter given]), | |
193 | , [enable_add_ons=yes]) | |
61952351 | 194 | |
8d4b5a8a | 195 | dnl Let the user avoid using TLS. Don't know why but... |
6b7f6183 RM |
196 | AC_ARG_WITH([tls], |
197 | AC_HELP_STRING([--with-tls], | |
198 | [enable support for TLS]), | |
199 | [usetls=$withval], | |
619f9448 | 200 | [usetls=yes]) |
8d4b5a8a | 201 | |
6b7f6183 RM |
202 | AC_ARG_WITH([__thread], |
203 | AC_HELP_STRING([--without-__thread], | |
204 | [do not use TLS features even when supporting them]), | |
205 | [use__thread=$withval], | |
206 | [use__thread=yes]) | |
5b8f26b4 | 207 | |
6b7f6183 RM |
208 | AC_ARG_ENABLE([hidden-plt], |
209 | AC_HELP_STRING([--disable-hidden-plt], | |
210 | [do not hide internal function calls to avoid PLT]), | |
211 | [hidden=$enableval], | |
212 | [hidden=yes]) | |
749a9a4f RM |
213 | if test "x$hidden" = xno; then |
214 | AC_DEFINE(NO_HIDDEN) | |
215 | fi | |
216 | ||
4df8c11d UD |
217 | AC_ARG_ENABLE([bind-now], |
218 | AC_HELP_STRING([--enable-bind-now], | |
219 | [disable lazy relocations in DSOs]), | |
220 | [bindnow=$enableval], | |
221 | [bindnow=no]) | |
222 | AC_SUBST(bindnow) | |
223 | ||
5107cf1d UD |
224 | dnl On some platforms we cannot use dynamic loading. We must provide |
225 | dnl static NSS modules. | |
6b7f6183 RM |
226 | AC_ARG_ENABLE([static-nss], |
227 | AC_HELP_STRING([--enable-static-nss], | |
228 | [build static NSS modules @<:@default=no@:>@]), | |
229 | [static_nss=$enableval], | |
230 | [static_nss=no]) | |
834cef7c UD |
231 | dnl Enable static NSS also if we build no shared objects. |
232 | if test x"$static_nss" = xyes || test x"$shared" = xno; then | |
3172f58f | 233 | static_nss=yes |
5107cf1d UD |
234 | AC_DEFINE(DO_STATIC_NSS) |
235 | fi | |
236 | ||
6b7f6183 RM |
237 | AC_ARG_ENABLE([force-install], |
238 | AC_HELP_STRING([--disable-force-install], | |
239 | [don't force installation of files from this package, even if they are older than the installed files]), | |
240 | [force_install=$enableval], | |
241 | [force_install=yes]) | |
73237de3 UD |
242 | AC_SUBST(force_install) |
243 | ||
958f238f UD |
244 | dnl On some platforms we allow dropping compatibility with all kernel |
245 | dnl versions. | |
6b7f6183 RM |
246 | AC_ARG_ENABLE([kernel], |
247 | AC_HELP_STRING([--enable-kernel=VERSION], | |
248 | [compile for compatibility with kernel not older than VERSION]), | |
249 | [minimum_kernel=$enableval], | |
250 | []) | |
86cfe82d UD |
251 | dnl Prevent unreasonable values. |
252 | if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then | |
253 | # Better nothing than this. | |
254 | minimum_kernel="" | |
269e369f UD |
255 | else |
256 | if test "$minimum_kernel" = current; then | |
257 | minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel= | |
258 | fi | |
86cfe82d | 259 | fi |
958f238f | 260 | |
6cc7d725 UD |
261 | dnl For the development we sometimes want gcc to issue even more warnings. |
262 | dnl This is not the default since many of the extra warnings are not | |
263 | dnl appropriate. | |
6b7f6183 RM |
264 | AC_ARG_ENABLE([all-warnings], |
265 | AC_HELP_STRING([--enable-all-warnings], | |
266 | [enable all useful warnings gcc can issue]), | |
267 | [all_warnings=$enableval], | |
268 | []) | |
6cc7d725 UD |
269 | AC_SUBST(all_warnings) |
270 | ||
425ce2ed UD |
271 | AC_ARG_ENABLE([multi-arch], |
272 | AC_HELP_STRING([--enable-multi-arch], | |
273 | [enable single DSO with optimizations for multiple architectures]), | |
274 | [multi_arch=$enableval], | |
6f89d2f3 L |
275 | [multi_arch=default]) |
276 | if test x"$multi_arch" != xno; then | |
425ce2ed UD |
277 | multi_arch_d=/multiarch |
278 | fi | |
425ce2ed UD |
279 | |
280 | AC_ARG_ENABLE([experimental-malloc], | |
281 | AC_HELP_STRING([--enable-experimental-malloc], | |
282 | [enable experimental malloc features]), | |
283 | [experimental_malloc=$enableval], | |
284 | []) | |
285 | AC_SUBST(experimental_malloc) | |
286 | ||
ff886b82 UD |
287 | AC_ARG_ENABLE([nss-crypt], |
288 | AC_HELP_STRING([--enable-nss-crypt], | |
289 | [enable libcrypt to use nss]), | |
290 | [nss_crypt=$enableval], | |
291 | [nss_crypt=no]) | |
292 | if test x$nss_crypt = xyes; then | |
293 | nss_includes=-I$(nss-config --includedir 2>/dev/null) | |
294 | if test $? -ne 0; then | |
295 | AC_MSG_ERROR([cannot find include directory with nss-config]) | |
296 | fi | |
297 | old_CFLAGS="$CFLAGS" | |
298 | CFLAGS="$CFLAGS $nss_includes" | |
299 | AC_COMPILE_IFELSE([typedef int PRBool; | |
300 | #include <hasht.h> | |
301 | #include <nsslowhash.h> | |
302 | void f (void) { NSSLOW_Init (); }], | |
303 | libc_cv_nss_crypt=yes, | |
304 | AC_MSG_ERROR([ | |
305 | cannot find NSS headers with lowlevel hash function interfaces])) | |
306 | old_LIBS="$LIBS" | |
307 | LIBS="$LIBS -lfreebl3" | |
308 | AC_LINK_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; | |
309 | #include <hasht.h> | |
310 | #include <nsslowhash.h>], | |
311 | [NSSLOW_Init();])], | |
312 | libc_cv_nss_crypt=yes, | |
313 | AC_MSG_ERROR([ | |
314 | cannot link program using lowlevel NSS hash functions])) | |
315 | CFLAGS="$old_CFLAGS" | |
316 | LIBS="$old_LIBS" | |
317 | else | |
318 | libc_cv_nss_crypt=no | |
319 | fi | |
320 | AC_SUBST(libc_cv_nss_crypt) | |
321 | ||
8a523922 UD |
322 | # The way shlib-versions is used to generate soversions.mk uses a |
323 | # fairly simplistic model for name recognition that can't distinguish | |
324 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
325 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
326 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
327 | case "$host_os" in | |
328 | linux*) | |
329 | ;; | |
330 | gnu*) | |
331 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
332 | ;; | |
333 | esac | |
334 | ||
28f540f4 RM |
335 | # We keep the original values in `$config_*' and never modify them, so we |
336 | # can write them unchanged into config.make. Everything else uses | |
337 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
338 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
339 | ||
2f64b655 UD |
340 | # Don't allow vendor == "unknown" |
341 | test "$config_vendor" = unknown && config_vendor= | |
342 | config_os="`echo $config_os | sed 's/^unknown-//'`" | |
343 | ||
a2fe9c76 RM |
344 | # Some configurations imply other options. |
345 | case "$host_os" in | |
7799b7b3 UD |
346 | # i586-linuxaout is mangled into i586-pc-linux-gnuaout |
347 | linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*) | |
3776d592 | 348 | ;; |
ffa8d2a0 | 349 | gnu* | linux* | freebsd* | netbsd* | sysv4* | solaris2* | irix6*) |
3776d592 RM |
350 | # These systems (almost) always use the ELF format. |
351 | elf=yes | |
84724245 | 352 | ;; |
5af3245a UD |
353 | aix*) |
354 | # These systems are always xcoff | |
355 | xcoff=yes | |
a711b01d | 356 | elf=no |
5af3245a | 357 | ;; |
a2fe9c76 RM |
358 | esac |
359 | ||
8f73811b RM |
360 | # The configure fragment of an add-on port can modify these to supplement |
361 | # or override the table in the case statement below. No fragment should | |
362 | # ever change the config_* variables, however. | |
28f540f4 RM |
363 | machine=$config_machine |
364 | vendor=$config_vendor | |
365 | os=$config_os | |
b22d21b3 | 366 | base_os='' |
28f540f4 | 367 | |
a808d541 UD |
368 | # config.guess on some IBM machines says `rs6000' instead of `powerpc'. |
369 | # Unify this here. | |
370 | if test "$machine" = rs6000; then | |
371 | machine="powerpc" | |
372 | fi | |
373 | ||
f4b07664 RM |
374 | # Braindead PowerPC box with absolutely no FPU. |
375 | case "$machine-$host_os" in | |
376 | powerpc*-*soft) | |
377 | with_fp=no | |
378 | ;; | |
379 | esac | |
380 | ||
2ceaa76a RM |
381 | submachine= |
382 | AC_ARG_WITH([cpu], | |
383 | AS_HELP_STRING([--with-cpu=CPU], [select code for CPU variant]), | |
384 | [dnl | |
385 | case "$withval" in | |
386 | yes|'') AC_MSG_ERROR([--with-cpu requires an argument]) ;; | |
387 | no) ;; | |
388 | *) submachine="$withval" ;; | |
389 | esac | |
390 | ]) | |
391 | ||
e0a3ed4f | 392 | # An add-on can set this when it wants to disable the sanity check below. |
8f73811b RM |
393 | libc_config_ok=no |
394 | ||
395 | dnl Having this here, though empty, makes sure that if add-ons' fragments | |
396 | dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then | |
397 | dnl our AC_OUTPUT will actually use it. | |
398 | AC_CONFIG_SUBDIRS() | |
399 | ||
e0a3ed4f RM |
400 | case "$enable_add_ons" in |
401 | ''|no) add_ons= ;; | |
402 | yes|'*') | |
403 | add_ons=`cd $srcdir && ls -d 2> /dev/null */configure */sysdeps | | |
404 | sed 's@/[[^/]]*$@@' | sort | uniq` | |
405 | add_ons_automatic=yes | |
406 | ;; | |
407 | *) add_ons=`echo "$enable_add_ons" | sed 's/,/ /g'` | |
408 | add_ons_automatic=no ;; | |
409 | esac | |
410 | ||
411 | configured_add_ons= | |
8f73811b RM |
412 | add_ons_sfx= |
413 | add_ons_pfx= | |
414 | if test x"$add_ons" != x; then | |
415 | for f in $add_ons; do | |
416 | # Some sanity checks | |
417 | case "$f" in | |
418 | crypt) | |
419 | AC_MSG_ERROR([ | |
420 | *** It seems that you're using an old \`crypt' add-on. crypt is now | |
421 | *** part of glibc and using the old add-on will not work with this | |
422 | *** release. Start again with fresh sources and without the old | |
423 | *** \`crypt' add-on.]) | |
424 | ;; | |
425 | localedata) | |
426 | AC_MSG_ERROR([ | |
427 | *** It seems that you're using an old \`localedata' add-on. localedata | |
428 | *** is now part of glibc and using the old add-on will not work with | |
429 | *** this release. Start again with fresh sources and without the old | |
430 | *** \`localedata' add-on.]) | |
431 | ;; | |
432 | esac | |
8f73811b RM |
433 | done |
434 | ||
9382fcee | 435 | # Now source each add-on's configure fragment. |
c80e931a RM |
436 | # The fragments can use $srcdir/$libc_add_on to find themselves, |
437 | # and test $add_ons_automatic to see if they were explicitly requested. | |
438 | # A fragment can clear (or even change) $libc_add_on to affect | |
439 | # whether it goes into the list to be actually used in the build. | |
440 | use_add_ons= | |
9382fcee | 441 | for libc_add_on in $add_ons; do |
e0a3ed4f RM |
442 | # Test whether such a directory really exists. |
443 | # It can be absolute, or relative to $srcdir, or relative to the build dir. | |
444 | case "$libc_add_on" in | |
445 | /*) | |
446 | libc_add_on_srcdir=$libc_add_on | |
447 | ;; | |
448 | *) | |
449 | test -d "$srcdir/$libc_add_on" || { | |
450 | if test -d "$libc_add_on"; then | |
451 | libc_add_on="`pwd`/$libc_add_on" | |
452 | else | |
453 | AC_MSG_ERROR(add-on directory \"$libc_add_on\" does not exist) | |
454 | fi | |
455 | } | |
456 | libc_add_on_srcdir=$srcdir/$libc_add_on | |
457 | ;; | |
458 | esac | |
459 | ||
460 | libc_add_on_frag=$libc_add_on_srcdir/configure | |
461 | libc_add_on_canonical= | |
7967983f | 462 | libc_add_on_config_subdirs= |
e0a3ed4f RM |
463 | if test -r "$libc_add_on_frag"; then |
464 | AC_MSG_NOTICE(running configure fragment for add-on $libc_add_on) | |
465 | libc_add_on_canonical=unknown | |
466 | libc_add_on_subdirs= | |
467 | . "$libc_add_on_frag" | |
468 | test -z "$libc_add_on" || { | |
469 | configured_add_ons="$configured_add_ons $libc_add_on" | |
470 | if test "x$libc_add_on_canonical" = xunknown; then | |
471 | AC_MSG_ERROR(fragment must set \$libc_add_on_canonical) | |
472 | fi | |
473 | for d in $libc_add_on_subdirs; do | |
474 | case "$libc_add_on" in | |
475 | /*) subdir_srcdir="$libc_add_on" ;; | |
476 | *) subdir_srcdir="\$(..)$libc_add_on" ;; | |
477 | esac | |
478 | case "$d" in | |
479 | .) | |
480 | d="${libc_add_on_canonical:-$libc_add_on}" | |
481 | ;; | |
482 | /*) | |
483 | subdir_srcdir="$d" | |
484 | ;; | |
485 | *) | |
486 | subdir_srcdir="$subdir_srcdir/$d" | |
487 | ;; | |
488 | esac | |
489 | d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'` | |
490 | add_on_subdirs="$add_on_subdirs $d" | |
491 | test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars | |
492 | $d-srcdir = $subdir_srcdir" | |
493 | done | |
7967983f RM |
494 | for d in $libc_add_on_config_subdirs; do |
495 | case "$d" in | |
496 | /*) AC_MSG_ERROR(dnl | |
497 | fragment uses absolute path in \$libc_add_on_config_subdirs) ;; | |
498 | esac | |
499 | if test ! -d "$libc_add_on_srcdir/$d"; then | |
500 | AC_MSG_ERROR(fragment wants to configure missing directory $d) | |
501 | fi | |
502 | case "$libc_add_on" in | |
503 | /*) AC_MSG_ERROR(dnl | |
504 | relative path required for add-on using \$libc_add_on_config_subdirs) ;; | |
505 | esac | |
506 | subdirs="$subdirs $libc_add_on/$d" | |
507 | done | |
e0a3ed4f | 508 | } |
8f73811b | 509 | fi |
619f9448 | 510 | if test -n "$libc_add_on"; then |
e0a3ed4f RM |
511 | if frags=`ls -d $libc_add_on_srcdir/sysdeps/*/preconfigure 2> /dev/null` |
512 | then | |
513 | AC_MSG_CHECKING(add-on $libc_add_on for preconfigure fragments) | |
514 | for frag in $frags; do | |
515 | name=`echo "$frag" | sed 's@/[[^/]]*$@@;s@^.*/@@'` | |
516 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD | |
517 | . "$frag" | |
518 | done | |
519 | AC_MSG_RESULT() | |
520 | fi | |
619f9448 RM |
521 | use_add_ons="$use_add_ons $libc_add_on" |
522 | add_ons_pfx="$add_ons_pfx $libc_add_on/" | |
e0a3ed4f RM |
523 | test -z "$libc_add_on_canonical" || |
524 | add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical" | |
619f9448 | 525 | fi |
8f73811b | 526 | done |
c80e931a RM |
527 | # Use echo to strip excess whitespace. |
528 | add_ons="`echo $use_add_ons`" | |
8f73811b RM |
529 | fi |
530 | AC_SUBST(add_ons) | |
e0a3ed4f | 531 | AC_SUBST(add_on_subdirs) |
8f73811b RM |
532 | |
533 | ||
bdc8eb03 UD |
534 | ### |
535 | ### I put this here to prevent those annoying emails from people who cannot | |
536 | ### read and try to compile glibc on unsupported platforms. --drepper | |
537 | ### | |
538 | ### By using the undocumented --enable-hacker-mode option for configure | |
539 | ### one can skip this test to make the configuration not fail for unsupported | |
540 | ### platforms. | |
541 | ### | |
8f73811b | 542 | if test -z "$enable_hacker_mode" && test x"$libc_config_ok" != xyes; then |
bdc8eb03 | 543 | case "$machine-$host_os" in |
75d86c1f | 544 | *-linux* | *-gnu* | arm*-none* | powerpc-aix4.3.*) |
bdc8eb03 UD |
545 | ;; |
546 | *) | |
547 | echo "*** The GNU C library is currently not available for this platform." | |
548 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
549 | echo "*** might never happen. So, if you have interest to see glibc on" | |
550 | echo "*** this platform visit" | |
551 | echo "*** http://www.gnu.org/software/libc/porting.html" | |
552 | echo "*** and join the group of porters" | |
553 | exit 1 | |
554 | ;; | |
555 | esac | |
556 | fi | |
557 | ||
28f540f4 RM |
558 | dnl We need to use [ and ] for other purposes for a while now. |
559 | changequote(,)dnl | |
560 | # Expand the configuration machine name into a subdirectory by architecture | |
8f73811b RM |
561 | # type and particular chip. If an add-on configure fragment already set |
562 | # base_machine, we don't change it. | |
563 | test -n "$base_machine" || case "$machine" in | |
f0523145 | 564 | a29k | am29000) base_machine=a29k machine=a29k ;; |
60c96635 UD |
565 | c3[012]) base_machine=cx0 machine=cx0/c30 ;; |
566 | c4[04]) base_machine=cx0 machine=cx0/c40 ;; | |
0b755dc4 | 567 | i[34567]86) base_machine=i386 machine=i386/$machine ;; |
d64e704c | 568 | ia64) base_machine=ia64 machine=ia64 ;; |
f0523145 RM |
569 | m88???) base_machine=m88k machine=m88k/$machine ;; |
570 | m88k) base_machine=m88k machine=m88k/m88100 ;; | |
92b27c74 UD |
571 | powerpc) base_machine=powerpc machine=powerpc/powerpc32 ;; |
572 | powerpc64) base_machine=powerpc machine=powerpc/powerpc64 ;; | |
136d4332 UD |
573 | s390) base_machine=s390 machine=s390/s390-32 ;; |
574 | s390x) base_machine=s390 machine=s390/s390-64 ;; | |
88615235 UD |
575 | sh3*) base_machine=sh machine=sh/sh3 ;; |
576 | sh4*) base_machine=sh machine=sh/sh4 ;; | |
ca34d7a7 UD |
577 | sparc | sparcv[67]) |
578 | base_machine=sparc machine=sparc/sparc32 ;; | |
579 | sparcv8 | supersparc | hypersparc) | |
580 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
ae6b8730 RH |
581 | sparcv8plus | sparcv8plusa | sparcv9) |
582 | base_machine=sparc machine=sparc/sparc32/sparcv9 ;; | |
bb769ab6 | 583 | sparcv8plusb | sparcv9b) |
10c6e709 | 584 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9b ;; |
2d73656b RM |
585 | sparcv9v) |
586 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v ;; | |
46ae8850 JJ |
587 | sparcv9v2) |
588 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v2 ;; | |
b1ecbed2 | 589 | sparc64) |
ca34d7a7 | 590 | base_machine=sparc machine=sparc/sparc64 ;; |
b1ecbed2 | 591 | sparc64b) |
bb769ab6 | 592 | base_machine=sparc machine=sparc/sparc64/sparcv9b ;; |
2d73656b RM |
593 | sparc64v) |
594 | base_machine=sparc machine=sparc/sparc64/sparcv9v ;; | |
46ae8850 JJ |
595 | sparc64v2) |
596 | base_machine=sparc machine=sparc/sparc64/sparcv9v2 ;; | |
3a2832a0 | 597 | *) base_machine=$machine ;; |
28f540f4 | 598 | esac |
f0523145 RM |
599 | changequote([,])dnl |
600 | AC_SUBST(base_machine) | |
28f540f4 | 601 | |
dfd2257a UD |
602 | if test "$base_machine" = "i386"; then |
603 | AC_DEFINE(USE_REGPARMS) | |
604 | fi | |
605 | ||
f0523145 | 606 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 607 | # This can take a while to compute. |
f0523145 | 608 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 609 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
610 | dnl We need to use [ and ] for other purposes for a while now. |
611 | changequote(,)dnl | |
28f540f4 RM |
612 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
613 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
614 | ||
b22d21b3 | 615 | test "x$base_os" != x || case "$os" in |
28f540f4 RM |
616 | gnu*) |
617 | base_os=mach/hurd ;; | |
883bc19b | 618 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 619 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 620 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 621 | base_os=unix/bsd ;; |
d586354e | 622 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 623 | base_os=unix/sysv ;; |
f802accb UD |
624 | irix6*) |
625 | base_os=unix/sysv/irix6/$os ;; | |
d586354e | 626 | solaris[2-9]*) |
28f540f4 | 627 | base_os=unix/sysv/sysv4 ;; |
908c3d5b UD |
628 | hpux*) |
629 | base_os=unix/sysv/hpux/$os ;; | |
75d86c1f UD |
630 | aix4.3*) |
631 | base_os=unix/sysv/aix/aix4.3 ;; | |
28f540f4 RM |
632 | none) |
633 | base_os=standalone ;; | |
28f540f4 RM |
634 | esac |
635 | ||
636 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
637 | tail=$os | |
638 | ostry=$os | |
639 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
640 | ostry="$ostry /$o" | |
641 | tail=$o | |
75914335 | 642 | done |
28f540f4 RM |
643 | o=`echo $tail | sed 's/[0-9]*$//'` |
644 | if test $o != $tail; then | |
645 | ostry="$ostry /$o" | |
646 | fi | |
ec4b0518 UD |
647 | # For linux-gnu, try linux-gnu, then linux. |
648 | o=`echo $tail | sed 's/-.*$//'` | |
649 | if test $o != $tail; then | |
650 | ostry="$ostry /$o" | |
651 | fi | |
28f540f4 RM |
652 | |
653 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
654 | base= | |
655 | tail=$base_os | |
656 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
657 | set $b | |
658 | base="$base /$1" | |
659 | tail="$2" | |
660 | done | |
661 | ||
ae6b8730 | 662 | # For sparc/sparc32, try sparc/sparc32 and then sparc. |
28f540f4 | 663 | mach= |
2ceaa76a | 664 | tail=$machine${submachine:+/$submachine} |
28f540f4 RM |
665 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do |
666 | set $m | |
10ceac89 RM |
667 | # Prepend the machine's FPU directory unless --without-fp. |
668 | if test "$with_fp" = yes; then | |
669 | mach="$mach /$1/fpu" | |
f4b07664 RM |
670 | else |
671 | mach="$mach /$1/nofpu" | |
82d00cab | 672 | fi |
28f540f4 RM |
673 | mach="$mach /$1" |
674 | tail="$2" | |
675 | done | |
676 | ||
677 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
678 | changequote([,])dnl | |
679 | ||
680 | # Find what sysdep directories exist. | |
e0a3ed4f | 681 | sysnames_add_ons= |
28f540f4 | 682 | sysnames= |
4b69abad RM |
683 | for b in $base ''; do |
684 | for m0 in $mach ''; do | |
685 | for v in /$vendor ''; do | |
686 | test "$v" = / && continue | |
687 | for o in /$ostry ''; do | |
688 | test "$o" = / && continue | |
425ce2ed | 689 | for m in $multi_arch_d $mach ''; do |
4b69abad | 690 | for d in $add_ons_pfx ''; do |
8f73811b | 691 | for a in $add_ons_sfx ''; do |
e0a3ed4f RM |
692 | if test -n "$m0$m0sub$b$v$o$m$msub"; then |
693 | try_srcdir="${srcdir}/" | |
694 | case "$d" in | |
695 | /*) try_srcdir= ;; | |
696 | esac | |
4b69abad | 697 | try="${d}sysdeps$m0$m0sub$b$v$o$m$msub$a" |
8f73811b RM |
698 | test -n "$enable_debug_configure" && |
699 | echo "$0 [DEBUG]: try $try" >&2 | |
e0a3ed4f | 700 | if test -d "$try_srcdir$try"; then |
8f73811b RM |
701 | sysnames="$sysnames $try" |
702 | { test -n "$o" || test -n "$b"; } && os_used=t | |
703 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
4b69abad RM |
704 | case x${m0:-$m} in |
705 | x*/$submachine) submachine_used=t ;; | |
706 | esac | |
e0a3ed4f RM |
707 | if test -n "$d"; then |
708 | case "$sysnames_add_ons" in | |
709 | *" $d "*) ;; | |
710 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
711 | esac | |
712 | fi | |
8f73811b | 713 | fi |
57ba7bb4 | 714 | fi |
8f73811b | 715 | done |
57ba7bb4 | 716 | done |
28f540f4 RM |
717 | done |
718 | done | |
719 | done | |
720 | done | |
4b69abad | 721 | done |
28f540f4 | 722 | |
6f89d2f3 L |
723 | # If the assembler supports gnu_indirect_function symbol type and the |
724 | # architecture supports multi-arch, we enable multi-arch by default. | |
725 | if test "$multi_arch" = default; then | |
726 | AC_CACHE_CHECK([for assembler gnu_indirect_function symbol type support], | |
727 | libc_cv_asm_gnu_indirect_function, [dnl | |
728 | cat > conftest.s <<EOF | |
729 | .type foo,%gnu_indirect_function | |
730 | EOF | |
731 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; | |
732 | then | |
733 | libc_cv_asm_gnu_indirect_function=yes | |
734 | else | |
735 | libc_cv_asm_gnu_indirect_function=no | |
736 | fi | |
737 | rm -f conftest*]) | |
738 | multi_arch=no | |
739 | if test "$libc_cv_asm_gnu_indirect_function" = yes; then | |
740 | case $sysnames_add_ons$sysnames in | |
741 | *"$multi_arch_d"*) | |
742 | multi_arch=yes | |
743 | ;; | |
744 | esac | |
745 | fi | |
746 | fi | |
747 | if test x"$multi_arch" = xyes; then | |
748 | AC_DEFINE(USE_MULTIARCH) | |
749 | fi | |
750 | AC_SUBST(multi_arch) | |
751 | ||
28f540f4 RM |
752 | if test -z "$os_used" && test "$os" != none; then |
753 | AC_MSG_ERROR(Operating system $os is not supported.) | |
754 | fi | |
755 | if test -z "$machine_used" && test "$machine" != none; then | |
756 | AC_MSG_ERROR(The $machine is not supported.) | |
757 | fi | |
2ceaa76a RM |
758 | if test -z "$submachine_used" && test -n "$submachine"; then |
759 | AC_MSG_ERROR(The $submachine subspecies of $host_cpu is not supported.) | |
760 | fi | |
761 | AC_SUBST(submachine) | |
28f540f4 RM |
762 | |
763 | # We have now validated the configuration. | |
764 | ||
335aa320 | 765 | |
10ceac89 RM |
766 | # If using ELF, look for an `elf' subdirectory of each machine directory. |
767 | # We prepend these rather than inserting them whereever the machine appears | |
768 | # because things specified by the machine's ELF ABI should override | |
769 | # OS-specific things, and should always be the same for any OS on the | |
770 | # machine (otherwise what's the point of an ABI?). | |
771 | if test "$elf" = yes; then | |
772 | elf_dirs= | |
57ba7bb4 | 773 | for d in $add_ons_pfx ''; do |
57ba7bb4 | 774 | for m in $mach; do |
9c4c0024 | 775 | if test -d $srcdir/${d}sysdeps$m/elf; then |
c2bb8cab | 776 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" |
57ba7bb4 UD |
777 | fi |
778 | done | |
28f540f4 | 779 | done |
57ba7bb4 | 780 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" |
28f540f4 RM |
781 | fi |
782 | ||
335aa320 | 783 | |
28f540f4 RM |
784 | # Expand the list of system names into a full list of directories |
785 | # from each element's parent name and Implies file (if present). | |
786 | set $sysnames | |
e50ec9f9 | 787 | names= |
28f540f4 RM |
788 | while test $# -gt 0; do |
789 | name=$1 | |
790 | shift | |
791 | ||
e50ec9f9 | 792 | case " $names " in *" $name "*) |
f332db02 RM |
793 | # Already in the list. |
794 | continue | |
e50ec9f9 | 795 | esac |
f332db02 RM |
796 | |
797 | # Report each name as we discover it, so there is no long pause in output. | |
0b4ee387 | 798 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD |
f332db02 | 799 | |
57ba7bb4 UD |
800 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
801 | ||
802 | case $name in | |
803 | /*) xsrcdir= ;; | |
804 | *) xsrcdir=$srcdir/ ;; | |
805 | esac | |
806 | test -n "$enable_debug_configure" && | |
807 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
808 | ||
809 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 810 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
811 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
812 | implied= | |
813 | for x in $implied_candidate; do | |
636ccfc8 | 814 | found=no |
57ba7bb4 UD |
815 | if test -d $xsrcdir$name_base/$x; then |
816 | implied="$implied $name_base/$x"; | |
636ccfc8 UD |
817 | found=yes |
818 | fi | |
819 | for d in $add_ons_pfx ''; do | |
820 | try="${d}sysdeps/$x" | |
821 | case $d in | |
822 | /*) try_srcdir= ;; | |
823 | *) try_srcdir=$srcdir/ ;; | |
824 | esac | |
825 | test -n "$enable_debug_configure" && | |
826 | echo "[DEBUG]: $name implied $x try($d) {$try_srcdir}$try" >&2 | |
827 | if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; | |
828 | then | |
829 | implied="$implied $try" | |
830 | found=yes | |
e0a3ed4f RM |
831 | case "$sysnames_add_ons" in |
832 | *" $d "*) ;; | |
833 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
834 | esac | |
636ccfc8 UD |
835 | fi |
836 | done | |
837 | if test $found = no; then | |
57ba7bb4 UD |
838 | AC_MSG_WARN($name/Implies specifies nonexistent $x) |
839 | fi | |
28f540f4 RM |
840 | done |
841 | else | |
842 | implied= | |
843 | fi | |
844 | ||
845 | # Add NAME to the list of names. | |
846 | names="$names $name" | |
847 | ||
848 | # Find the parent of NAME, using the empty string if it has none. | |
849 | changequote(,)dnl | |
57ba7bb4 | 850 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
851 | changequote([,])dnl |
852 | ||
853 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
854 | # the list of names to be processed (the argument list). We prepend the | |
855 | # implied names to the list and append the parent. We want implied | |
856 | # directories to come before further directories inferred from the | |
857 | # configuration components; this ensures that for sysv4, unix/common | |
858 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
859 | # after sysv4). | |
860 | sysnames="`echo $implied $* $parent`" | |
861 | test -n "$sysnames" && set $sysnames | |
862 | done | |
863 | ||
864 | # Add the default directories. | |
ecdc196c | 865 | default_sysnames=sysdeps/generic |
2de7874e | 866 | if test "$elf" = yes; then |
ecdc196c | 867 | default_sysnames="sysdeps/generic/elf $default_sysnames" |
2de7874e | 868 | fi |
ecdc196c | 869 | sysnames="$names $default_sysnames" |
f332db02 RM |
870 | AC_SUBST(sysnames) |
871 | # The other names were emitted during the scan. | |
ecdc196c | 872 | AC_MSG_RESULT($default_sysnames) |
28f540f4 | 873 | |
e0a3ed4f RM |
874 | # Collect the list of add-ons that supply partial sysdeps trees. |
875 | sysdeps_add_ons= | |
876 | for add_on in $add_ons; do | |
877 | case "$add_on" in | |
878 | /*) xsrcdir= ;; | |
879 | *) xsrcdir="$srcdir/" ;; | |
880 | esac | |
881 | ||
882 | test -d "$xsrcdir$add_on/sysdeps" || { | |
883 | case "$configured_add_ons " in | |
884 | *" $add_on "*) ;; | |
885 | *|'') | |
886 | AC_MSG_ERROR(add-on $add_on has no configure fragment or sysdeps tree) | |
887 | ;; | |
888 | esac | |
889 | continue | |
890 | } | |
891 | ||
892 | sysdeps_add_ons="$sysdeps_add_ons $add_on" | |
893 | case "$sysnames_add_ons" in | |
894 | *" $add_on/ "*) ;; | |
895 | *|'') | |
896 | AC_MSG_WARN(add-on $add_on contributed no sysdeps directories) | |
897 | continue ;; | |
898 | esac | |
899 | ||
900 | found=no | |
901 | for d in $sysnames; do | |
902 | case "$d" in | |
903 | $add_on/sysdeps/*) ;; | |
904 | *) continue ;; | |
905 | esac | |
906 | (cd "$xsrcdir$d" && for f in *[[!~]]; do | |
907 | case "$f" in | |
908 | sys|bits) | |
909 | for ff in $f/*.h; do | |
910 | test -d "$ff" || { test -e "$ff" && exit 88; } | |
911 | done | |
912 | ;; | |
913 | *) | |
914 | test -d "$f" || { test -e "$f" && exit 88; } | |
915 | ;; | |
916 | esac | |
917 | done) | |
918 | if test $? -eq 88; then | |
919 | found=yes | |
920 | break | |
921 | fi | |
922 | done | |
923 | if test $found = no; then | |
924 | AC_MSG_WARN(add-on $add_on contributed no useful sysdeps directories) | |
925 | fi | |
926 | done | |
927 | AC_SUBST(sysdeps_add_ons) | |
928 | ||
f332db02 RM |
929 | |
930 | ### Locate tools. | |
28f540f4 | 931 | |
28f540f4 | 932 | AC_PROG_INSTALL |
2b80a372 | 933 | if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then |
28f540f4 | 934 | # The makefiles need to use a different form to find it in $srcdir. |
2b80a372 | 935 | INSTALL='\$(..)./scripts/install-sh -c' |
28f540f4 | 936 | fi |
0e3426bb | 937 | AC_PROG_LN_S |
ae828bc6 | 938 | |
4baa087a RM |
939 | LIBC_PROG_BINUTILS |
940 | AC_SUBST(MIG)dnl Needed by sysdeps/mach/configure.in | |
941 | ||
942 | # Accept binutils 2.13 or newer. | |
943 | AC_CHECK_PROG_VER(AS, $AS, --version, | |
944 | [GNU assembler.* \([0-9]*\.[0-9.]*\)], | |
f450806e | 945 | [2.1[3-9]*|2.1[0-9][0-9]*|2.[2-9][0-9]*|[3-9].*|[1-9][0-9]*], AS=: critic_missing="$critic_missing as") |
4baa087a RM |
946 | AC_CHECK_PROG_VER(LD, $LD, --version, |
947 | [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], | |
f450806e | 948 | [2.1[3-9]*|2.1[0-9][0-9]*|2.[2-9][0-9]*|[3-9].*|[1-9][0-9]*], LD=: critic_missing="$critic_missing ld") |
4baa087a | 949 | |
a4301d41 UD |
950 | # We need the physical current working directory. We cannot use the |
951 | # "pwd -P" shell builtin since that's not portable. Instead we try to | |
952 | # find a pwd binary. Note that assigning to the PWD environment | |
953 | # variable might have some interesting side effects, so we don't do | |
954 | # that. | |
955 | AC_PATH_PROG(PWD_P, pwd, no) | |
956 | if test "$PWD_P" = no; then | |
957 | AC_MSG_ERROR(*** A pwd binary could not be found.) | |
958 | fi | |
959 | ||
63bda0c1 | 960 | # These programs are version sensitive. |
3a12e572 | 961 | AC_CHECK_TOOL_PREFIX |
4bca4c17 | 962 | AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, |
93aed667 | 963 | [version \([egcygnustpi-]*[0-9.]*\)], [3.4* | 4.[0-9]* ], |
90d1d40b | 964 | critic_missing="$critic_missing gcc") |
22e65f8f | 965 | AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, |
8fc1e2ca | 966 | [GNU Make[^0-9]*\([0-9][0-9.]*\)], |
6b4e880f | 967 | [3.79* | 3.[89]*], critic_missing="$critic_missing make") |
63bda0c1 | 968 | |
22e65f8f | 969 | AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, |
bdd421cc | 970 | [GNU gettext.* \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
971 | [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*], |
972 | MSGFMT=: aux_missing="$aux_missing msgfmt") | |
63bda0c1 | 973 | AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
8b7fb588 | 974 | [GNU texinfo.* \([0-9][0-9.]*\)], |
aefdff34 RM |
975 | [4.*], |
976 | MAKEINFO=: aux_missing="$aux_missing makeinfo") | |
d6a97a28 | 977 | AC_CHECK_PROG_VER(SED, sed, --version, |
aec103d3 | 978 | [GNU sed version \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
979 | [3.0[2-9]*|3.[1-9]*|[4-9]*], |
980 | SED=: aux_missing="$aux_missing sed") | |
63bda0c1 | 981 | |
476e7d78 RM |
982 | AC_CHECK_PROGS(AUTOCONF, autoconf, no) |
983 | case "x$AUTOCONF" in | |
984 | xno|x|x:) AUTOCONF=no ;; | |
985 | *) | |
986 | AC_CACHE_CHECK(dnl | |
1400de2e | 987 | whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl |
476e7d78 RM |
988 | if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then |
989 | libc_cv_autoconf_works=yes | |
990 | else | |
991 | libc_cv_autoconf_works=no | |
992 | fi]) | |
993 | test $libc_cv_autoconf_works = yes || AUTOCONF=no | |
994 | ;; | |
995 | esac | |
996 | if test "x$with_cvs" = xyes && test "x$AUTOCONF" = xno; then | |
997 | # If --without-cvs they probably won't change configure.in, so no complaints. | |
998 | aux_missing="$aux_missing autoconf" | |
14519931 | 999 | fi |
1400de2e | 1000 | |
32a448ed RM |
1001 | test -n "$critic_missing" && AC_MSG_ERROR([ |
1002 | *** These critical programs are missing or too old:$critic_missing | |
1003 | *** Check the INSTALL file for required versions.]) | |
1004 | ||
4bca4c17 | 1005 | test -n "$aux_missing" && AC_MSG_WARN([ |
9c6fffc0 | 1006 | *** These auxiliary programs are missing or incompatible versions:$aux_missing |
63bda0c1 UD |
1007 | *** some features will be disabled. |
1008 | *** Check the INSTALL file for required versions.]) | |
28f540f4 | 1009 | |
dbe7a0f5 UD |
1010 | # if using special system headers, find out the compiler's sekrit |
1011 | # header directory and add that to the list. NOTE: Only does the right | |
1012 | # thing on a system that doesn't need fixincludes. (Not presently a problem.) | |
1013 | if test -n "$sysheaders"; then | |
67fbfa5c RM |
1014 | SYSINCLUDES=-nostdinc |
1015 | for d in include include-fixed; do | |
1016 | i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" && | |
1017 | SYSINCLUDES="$SYSINCLUDES -isystem $i" | |
1018 | done | |
1019 | SYSINCLUDES="$SYSINCLUDES \ | |
3d6ce23a | 1020 | -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`" |
ef226fec RM |
1021 | if test -n "$CXX"; then |
1022 | cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` && | |
1023 | cxxmachine=`$CXX -dumpmachine 2>&AS_MESSAGE_LOG_FD` && | |
1024 | cxxheaders=`$CXX -print-file-name=../../../../include/c++/`"$cxxversion" && | |
1025 | CXX_SYSINCLUDES="-isystem $cxxheaders \ | |
1026 | -isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward" | |
1027 | fi | |
dbe7a0f5 UD |
1028 | fi |
1029 | AC_SUBST(SYSINCLUDES) | |
ef226fec | 1030 | AC_SUBST(CXX_SYSINCLUDES) |
dbe7a0f5 | 1031 | |
97a47867 UD |
1032 | # check if ranlib is necessary |
1033 | AC_CACHE_CHECK(whether ranlib is necessary, libc_cv_ranlib_necessary, [dnl | |
1034 | cat > conftest.c <<EOF | |
1035 | int a; | |
1036 | char b; | |
1037 | void c(void) {} | |
1038 | EOF | |
3217788f | 1039 | $CC $CFLAGS $CPPFLAGS -c conftest.c |
72d4c33d | 1040 | $AR cr conftest.a conftest.o |
97a47867 UD |
1041 | cp conftest.a conftest2.a |
1042 | $RANLIB conftest.a | |
1043 | if cmp -s conftest.a conftest2.a; then | |
1044 | libc_cv_ranlib_necessary=no | |
f38931a9 | 1045 | else |
97a47867 UD |
1046 | libc_cv_ranlib_necessary=yes |
1047 | fi | |
1048 | rm -rf conftest*]) | |
1049 | if test "$libc_cv_ranlib_necessary" = no; then | |
1050 | RANLIB=: | |
f38931a9 | 1051 | fi |
f38931a9 | 1052 | |
3911660e UD |
1053 | # Test if LD_LIBRARY_PATH contains the notation for the current directory |
1054 | # since this would lead to problems installing/building glibc. | |
1055 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
1056 | # is true: | |
1057 | # - one of the terminals (":" and ";") is the first or last sign | |
1058 | # - two terminals occur directly after each other | |
1059 | # - the path contains an element with a dot in it | |
1060 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
1061 | changequote(,)dnl | |
1062 | case ${LD_LIBRARY_PATH} in | |
1063 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
b3a86ae1 | 1064 | ld_library_path_setting="contains current directory" |
3911660e UD |
1065 | ;; |
1066 | *) | |
1067 | ld_library_path_setting="ok" | |
1068 | ;; | |
1069 | esac | |
1070 | changequote([,])dnl | |
1071 | AC_MSG_RESULT($ld_library_path_setting) | |
1072 | if test "$ld_library_path_setting" != "ok"; then | |
63bda0c1 UD |
1073 | AC_MSG_ERROR([ |
1074 | *** LD_LIBRARY_PATH shouldn't contain the current directory when | |
1075 | *** building glibc. Please change the environment variable | |
1076 | *** and run configure again.]) | |
3911660e | 1077 | fi |
8e31cf7e | 1078 | |
74bd2300 UD |
1079 | AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl |
1080 | if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then | |
1081 | libc_cv_gcc_static_libgcc= | |
1082 | else | |
1083 | libc_cv_gcc_static_libgcc=-static-libgcc | |
1084 | fi]) | |
1085 | AC_SUBST(libc_cv_gcc_static_libgcc) | |
1086 | ||
26f56c1c UD |
1087 | AC_PATH_PROG(BASH_SHELL, bash, no) |
1088 | if test "$BASH_SHELL" != no && | |
1089 | $BASH_SHELL -c 'test "$BASH_VERSINFO" \ | |
6973fc01 | 1090 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
1091 | libc_cv_have_bash2=yes |
1092 | else | |
1093 | libc_cv_have_bash2=no | |
1094 | fi | |
1095 | AC_SUBST(libc_cv_have_bash2) | |
1096 | ||
5290baf0 | 1097 | dnl We need a ksh compatible shell for tzselect. |
26f56c1c | 1098 | if test "$BASH_SHELL" = no; then |
5290baf0 UD |
1099 | AC_PATH_PROG(KSH, ksh, no) |
1100 | if test "$KSH" = no; then | |
1101 | libc_cv_have_ksh=no | |
1102 | else | |
1103 | libc_cv_have_ksh=yes | |
1104 | fi | |
1105 | else | |
26f56c1c | 1106 | KSH="$BASH_SHELL" |
5290baf0 UD |
1107 | AC_SUBST(KSH) |
1108 | libc_cv_have_ksh=yes | |
1109 | fi | |
1110 | AC_SUBST(libc_cv_have_ksh) | |
1111 | ||
5aa8ff62 | 1112 | AC_PROG_AWK |
c0016081 | 1113 | AC_PATH_PROG(PERL, perl, no) |
2fd5d029 RM |
1114 | if test "$PERL" != no && |
1115 | (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then | |
1116 | PERL=no | |
ecb06196 | 1117 | fi |
2f512715 AS |
1118 | AC_PATH_PROG(INSTALL_INFO, install-info, no, |
1119 | $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) | |
2de00372 UD |
1120 | AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin) |
1121 | ||
b8dc6a10 | 1122 | AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl |
28f540f4 RM |
1123 | echo '#include <stddef.h> |
1124 | FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c | |
1125 | if eval "$ac_cpp conftest.c 2>/dev/null" \ | |
1126 | | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then | |
1127 | libc_cv_signed_size_t=no | |
1128 | else | |
1129 | libc_cv_signed_size_t=yes | |
1130 | fi | |
1131 | rm -f conftest*]) | |
28f540f4 RM |
1132 | if test $libc_cv_signed_size_t = yes; then |
1133 | dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings. | |
1134 | cat >> confdefs.h <<\EOF | |
1135 | #undef __SIZE_TYPE__ | |
1136 | #define __SIZE_TYPE__ unsigned | |
1137 | EOF | |
1138 | fi | |
1139 | ||
b8dc6a10 | 1140 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
1141 | AC_TRY_COMPILE(dnl |
1142 | [#define __need_size_t | |
1143 | #define __need_wchar_t | |
1144 | #include <stddef.h> | |
1145 | #define __need_NULL | |
1146 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
1147 | #ifdef offsetof | |
1148 | #error stddef.h ignored __need_* | |
1149 | #endif | |
1150 | if (&size == NULL || &wchar == NULL) abort ();], | |
1151 | libc_cv_friendly_stddef=yes, | |
1152 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
1153 | if test $libc_cv_friendly_stddef = yes; then |
1154 | config_vars="$config_vars | |
1155 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
1156 | fi | |
1157 | ||
b8dc6a10 RM |
1158 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
1159 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
1160 | cat > conftest.S <<EOF |
1161 | #include "confdefs.h" | |
1162 | /* Nothing whatsoever. */ | |
1163 | EOF | |
3217788f | 1164 | if AC_TRY_COMMAND(${CC-cc} $CPPFLAGS $ASFLAGS -c conftest.S 1>&AS_MESSAGE_LOG_FD); then |
28f540f4 RM |
1165 | libc_cv_need_minus_P=no |
1166 | else | |
1167 | libc_cv_need_minus_P=yes | |
1168 | fi | |
1169 | rm -f conftest*]) | |
28f540f4 RM |
1170 | if test $libc_cv_need_minus_P = yes; then |
1171 | config_vars="$config_vars | |
1172 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
1173 | fi | |
1174 | ||
2293395f UD |
1175 | AC_MSG_CHECKING(whether .text pseudo-op must be used) |
1176 | AC_CACHE_VAL(libc_cv_dot_text, [dnl | |
1177 | cat > conftest.s <<EOF | |
1178 | .text | |
1179 | EOF | |
1180 | libc_cv_dot_text= | |
3217788f | 1181 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
2293395f UD |
1182 | libc_cv_dot_text=.text |
1183 | fi | |
1184 | rm -f conftest*]) | |
1185 | if test -z "$libc_cv_dot_text"; then | |
1186 | AC_MSG_RESULT(no) | |
1187 | else | |
1188 | AC_MSG_RESULT(yes) | |
1189 | fi | |
1190 | ||
b8dc6a10 RM |
1191 | AC_CACHE_CHECK(for assembler global-symbol directive, |
1192 | libc_cv_asm_global_directive, [dnl | |
9a70fcab | 1193 | libc_cv_asm_global_directive=UNKNOWN |
908c3d5b | 1194 | for ac_globl in .globl .global .EXPORT; do |
9a70fcab | 1195 | cat > conftest.s <<EOF |
2293395f | 1196 | ${libc_cv_dot_text} |
908c3d5b | 1197 | ${ac_globl} foo |
ae1025be | 1198 | foo: |
9a70fcab | 1199 | EOF |
3217788f | 1200 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a70fcab UD |
1201 | libc_cv_asm_global_directive=${ac_globl} |
1202 | fi | |
1203 | rm -f conftest* | |
1204 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
1205 | done]) | |
9a70fcab UD |
1206 | if test $libc_cv_asm_global_directive = UNKNOWN; then |
1207 | AC_MSG_ERROR(cannot determine asm global directive) | |
1208 | else | |
1209 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
1210 | fi | |
1211 | ||
b8dc6a10 | 1212 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 1213 | cat > conftest.s <<EOF |
2293395f | 1214 | ${libc_cv_dot_text} |
ae1025be | 1215 | foo: |
df2a0c93 | 1216 | .set glibc_conftest_frobozz,foo |
9a70fcab | 1217 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 1218 | EOF |
df2a0c93 RM |
1219 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
1220 | # (but it doesn't work), so we must do a linking check to be sure. | |
1221 | cat > conftest1.c <<\EOF | |
1222 | extern int glibc_conftest_frobozz; | |
640f0119 | 1223 | void _start() { glibc_conftest_frobozz = 1; } |
df2a0c93 RM |
1224 | EOF |
1225 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
640f0119 | 1226 | -nostartfiles -nostdlib \ |
0b4ee387 | 1227 | -o conftest conftest.s conftest1.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
e215c478 RM |
1228 | libc_cv_asm_set_directive=yes |
1229 | else | |
1230 | libc_cv_asm_set_directive=no | |
1231 | fi | |
65b3cbcb | 1232 | rm -f conftest*]) |
e215c478 RM |
1233 | if test $libc_cv_asm_set_directive = yes; then |
1234 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
1235 | fi | |
1236 | ||
b88ac073 RM |
1237 | AC_CACHE_CHECK(for assembler .type directive prefix, |
1238 | libc_cv_asm_type_prefix, [dnl | |
1239 | libc_cv_asm_type_prefix=no | |
1240 | for ac_try_prefix in '@' '%' '#'; do | |
1241 | cat > conftest.s <<EOF | |
1242 | ${libc_cv_dot_text} | |
1243 | ${libc_cv_asm_global_directive} foo | |
1244 | .type foo, ${ac_try_prefix}object | |
1245 | .size foo, 1 | |
1246 | foo: | |
1247 | .byte 1 | |
1248 | EOF | |
3217788f | 1249 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
b88ac073 RM |
1250 | libc_cv_asm_type_prefix=${ac_try_prefix} |
1251 | fi | |
1252 | rm -f conftest* | |
1253 | test "x$libc_cv_asm_type_prefix" != xno && break | |
1254 | done]) | |
1255 | if test "x$libc_cv_asm_type_prefix" != xno; then | |
1256 | AC_DEFINE_UNQUOTED(ASM_TYPE_DIRECTIVE_PREFIX, ${libc_cv_asm_type_prefix}) | |
1257 | fi | |
425ce2ed | 1258 | |
415ac3df UD |
1259 | AC_CACHE_CHECK(for assembler gnu_unique_object symbol type, |
1260 | libc_cv_asm_unique_object, [dnl | |
1261 | cat > conftest.s <<EOF | |
1262 | ${libc_cv_dot_text} | |
1263 | _sym: | |
1264 | .type _sym, ${libc_cv_asm_type_prefix}gnu_unique_object | |
1265 | EOF | |
1266 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then | |
1267 | libc_cv_asm_unique_object=yes | |
1268 | else | |
1269 | libc_cv_asm_unique_object=no | |
1270 | fi | |
1271 | rm -f conftest*]) | |
1272 | if test $libc_cv_asm_unique_object = yes; then | |
1273 | AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT) | |
1274 | fi | |
1275 | ||
425ce2ed UD |
1276 | # For the multi-arch option we need support in the assembler. |
1277 | if test "$multi_arch" = yes; then | |
1278 | if test "x$libc_cv_asm_type_prefix" != xno; then | |
1279 | AC_CACHE_CHECK([for assembler gnu_indirect_function symbol type support], | |
1280 | libc_cv_asm_gnu_indirect_function, [dnl | |
1281 | cat > conftest.s <<EOF | |
1282 | .type foo,%gnu_indirect_function | |
1283 | EOF | |
1284 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; | |
1285 | then | |
1286 | libc_cv_asm_gnu_indirect_function=yes | |
1287 | else | |
1288 | libc_cv_asm_gnu_indirect_function=no | |
1289 | fi | |
1290 | rm -f conftest*]) | |
1291 | else | |
1292 | libc_cv_asm_gnu_indirect_function=no | |
1293 | fi | |
1294 | if test x"$libc_cv_asm_gnu_indirect_function" != xyes; then | |
1295 | AC_MSG_ERROR([--enable-multi-arch support requires assembler and linker support]) | |
1296 | fi | |
1297 | fi | |
b88ac073 | 1298 | |
377a515b UD |
1299 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
1300 | [cat > conftest.s <<EOF | |
2293395f | 1301 | ${libc_cv_dot_text} |
4cca6b86 | 1302 | _sym: |
377a515b UD |
1303 | .symver _sym,sym@VERS |
1304 | EOF | |
3217788f | 1305 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
377a515b UD |
1306 | libc_cv_asm_symver_directive=yes |
1307 | else | |
1308 | libc_cv_asm_symver_directive=no | |
1309 | fi | |
1310 | rm -f conftest*]) | |
1311 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
1312 | if test $libc_cv_asm_symver_directive = yes; then | |
1313 | cat > conftest.s <<EOF | |
2293395f | 1314 | ${libc_cv_dot_text} |
4cca6b86 | 1315 | _sym: |
377a515b UD |
1316 | .symver _sym,sym@VERS |
1317 | EOF | |
1318 | cat > conftest.map <<EOF | |
f43ce637 | 1319 | VERS_1 { |
377a515b UD |
1320 | global: sym; |
1321 | }; | |
f43ce637 UD |
1322 | |
1323 | VERS_2 { | |
1324 | global: sym; | |
1325 | } VERS_1; | |
377a515b | 1326 | EOF |
3217788f RM |
1327 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
1328 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $LDFLAGS -shared | |
1329 | -o conftest.so conftest.o | |
1330 | -nostartfiles -nostdlib | |
1331 | -Wl,--version-script,conftest.map | |
c2f55635 | 1332 | 1>&AS_MESSAGE_LOG_FD]); |
377a515b UD |
1333 | then |
1334 | libc_cv_ld_version_script_option=yes | |
1335 | else | |
1336 | libc_cv_ld_version_script_option=no | |
1337 | fi | |
1338 | else | |
1339 | libc_cv_ld_version_script_option=no | |
1340 | fi | |
1341 | else | |
1342 | libc_cv_ld_version_script_option=no | |
1343 | fi | |
1344 | rm -f conftest*]) | |
7499a22a RM |
1345 | if test $shared != no && |
1346 | test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
1347 | test $libc_cv_ld_version_script_option = yes && |
1348 | test $enable_versioning = yes; then | |
377a515b UD |
1349 | VERSIONING=yes |
1350 | AC_DEFINE(DO_VERSIONING) | |
1351 | else | |
1352 | VERSIONING=no | |
1353 | fi | |
1354 | AC_SUBST(VERSIONING) | |
1355 | ||
102a3e8f | 1356 | if test $elf = yes && test $shared != no && test $VERSIONING = no; then |
f43ce637 | 1357 | echo "\ |
f4017d20 | 1358 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
1359 | *** versioning will introduce incompatibilities so that old binaries |
1360 | *** will not run anymore. | |
50304ef0 | 1361 | *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)." |
f43ce637 | 1362 | fi |
fd26970f UD |
1363 | if test $elf = yes; then |
1364 | AC_CACHE_CHECK(for .previous assembler directive, | |
1365 | libc_cv_asm_previous_directive, [dnl | |
1366 | cat > conftest.s <<EOF | |
1367 | .section foo_section | |
1368 | .previous | |
1369 | EOF | |
3217788f | 1370 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
fd26970f UD |
1371 | libc_cv_asm_previous_directive=yes |
1372 | else | |
1373 | libc_cv_asm_previous_directive=no | |
1374 | fi | |
1375 | rm -f conftest*]) | |
1376 | if test $libc_cv_asm_previous_directive = yes; then | |
1377 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
1378 | else | |
1379 | AC_CACHE_CHECK(for .popsection assembler directive, | |
1380 | libc_cv_asm_popsection_directive, [dnl | |
1381 | cat > conftest.s <<EOF | |
1382 | .pushsection foo_section | |
1383 | .popsection | |
1384 | EOF | |
3217788f | 1385 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
fd26970f UD |
1386 | libc_cv_asm_popsection_directive=yes |
1387 | else | |
1388 | libc_cv_asm_popsection_directive=no | |
1389 | fi | |
1390 | rm -f conftest*]) | |
1391 | if test $libc_cv_asm_popsection_directive = yes; then | |
1392 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
1393 | fi | |
1394 | fi | |
2d499f55 UD |
1395 | AC_CACHE_CHECK(for .protected and .hidden assembler directive, |
1396 | libc_cv_asm_protected_directive, [dnl | |
1397 | cat > conftest.s <<EOF | |
1398 | .protected foo | |
1399 | foo: | |
1400 | .hidden bar | |
1401 | bar: | |
1402 | EOF | |
3217788f | 1403 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
2d499f55 UD |
1404 | libc_cv_asm_protected_directive=yes |
1405 | else | |
11bf311e | 1406 | AC_MSG_ERROR(assembler support for symbol visibility is required) |
2d499f55 UD |
1407 | fi |
1408 | rm -f conftest*]) | |
0fb7851f | 1409 | |
0d01dace UD |
1410 | if test $libc_cv_asm_protected_directive = yes; then |
1411 | AC_CACHE_CHECK(whether __attribute__((visibility())) is supported, | |
1412 | libc_cv_visibility_attribute, | |
1413 | [cat > conftest.c <<EOF | |
1414 | int foo __attribute__ ((visibility ("hidden"))) = 1; | |
1415 | int bar __attribute__ ((visibility ("protected"))) = 1; | |
1416 | EOF | |
1417 | libc_cv_visibility_attribute=no | |
61cea1c3 | 1418 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
0d01dace UD |
1419 | if grep '\.hidden.*foo' conftest.s >/dev/null; then |
1420 | if grep '\.protected.*bar' conftest.s >/dev/null; then | |
1421 | libc_cv_visibility_attribute=yes | |
1422 | fi | |
1423 | fi | |
1424 | fi | |
1425 | rm -f conftest.[cs] | |
1426 | ]) | |
11bf311e UD |
1427 | if test $libc_cv_visibility_attribute != yes; then |
1428 | AC_MSG_ERROR(compiler support for visibility attribute is required) | |
0d01dace UD |
1429 | fi |
1430 | fi | |
1431 | ||
37ba7d66 UD |
1432 | if test $libc_cv_visibility_attribute = yes; then |
1433 | AC_CACHE_CHECK(for broken __attribute__((visibility())), | |
1434 | libc_cv_broken_visibility_attribute, | |
1435 | [cat > conftest.c <<EOF | |
1436 | int foo (int x); | |
1437 | int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden"))); | |
1438 | int bar (int x) { return x; } | |
1439 | EOF | |
1440 | libc_cv_broken_visibility_attribute=yes | |
61cea1c3 | 1441 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s1>&AS_MESSAGE_LOG_FD); then |
37ba7d66 UD |
1442 | changequote(,)dnl |
1443 | if grep '\.hidden[ _]foo' conftest.s >/dev/null; then | |
1444 | changequote([,])dnl | |
1445 | libc_cv_broken_visibility_attribute=no | |
1446 | fi | |
1447 | fi | |
1448 | rm -f conftest.c conftest.s | |
1449 | ]) | |
1450 | if test $libc_cv_broken_visibility_attribute = yes; then | |
11bf311e | 1451 | AC_MSG_ERROR(working compiler support for visibility attribute is required) |
37ba7d66 UD |
1452 | fi |
1453 | fi | |
1454 | ||
1455 | AC_CACHE_CHECK(for broken __attribute__((alias())), | |
1456 | libc_cv_broken_alias_attribute, | |
1457 | [cat > conftest.c <<EOF | |
1458 | extern int foo (int x) __asm ("xyzzy"); | |
1459 | int bar (int x) { return x; } | |
48b8e846 UD |
1460 | extern __typeof (bar) foo __attribute ((weak, alias ("bar"))); |
1461 | extern int dfoo; | |
1462 | extern __typeof (dfoo) dfoo __asm ("abccb"); | |
1463 | int dfoo = 1; | |
37ba7d66 UD |
1464 | EOF |
1465 | libc_cv_broken_alias_attribute=yes | |
61cea1c3 | 1466 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
48b8e846 UD |
1467 | if grep 'xyzzy' conftest.s >/dev/null && |
1468 | grep 'abccb' conftest.s >/dev/null; then | |
37ba7d66 UD |
1469 | libc_cv_broken_alias_attribute=no |
1470 | fi | |
1471 | fi | |
1472 | rm -f conftest.c conftest.s | |
1473 | ]) | |
1474 | if test $libc_cv_broken_alias_attribute = yes; then | |
11bf311e | 1475 | AC_MSG_ERROR(working alias attribute support required) |
37ba7d66 UD |
1476 | fi |
1477 | ||
57d44131 | 1478 | if test $libc_cv_visibility_attribute = yes; then |
0d01dace UD |
1479 | AC_CACHE_CHECK(whether to put _rtld_local into .sdata section, |
1480 | libc_cv_have_sdata_section, | |
1481 | [echo "int i;" > conftest.c | |
1482 | libc_cv_have_sdata_section=no | |
dbc92dc6 | 1483 | if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \ |
0d01dace UD |
1484 | | grep '\.sdata' >/dev/null; then |
1485 | libc_cv_have_sdata_section=yes | |
1486 | fi | |
1487 | rm -f conftest.c conftest.so | |
1488 | ]) | |
1489 | if test $libc_cv_have_sdata_section = yes; then | |
1490 | AC_DEFINE(HAVE_SDATA_SECTION) | |
1491 | fi | |
1492 | fi | |
1493 | ||
5241882c | 1494 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, |
ce33ee7c | 1495 | libc_cv_initfini_array, [dnl |
5241882c UD |
1496 | cat > conftest.c <<EOF |
1497 | int _start (void) { return 0; } | |
1498 | int __start (void) { return 0; } | |
1499 | int foo (void) { return 1; } | |
2c617417 | 1500 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; |
5241882c | 1501 | EOF |
3217788f | 1502 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c |
c2f55635 | 1503 | -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD]) |
5241882c UD |
1504 | then |
1505 | if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then | |
ce33ee7c | 1506 | libc_cv_initfini_array=yes |
5241882c | 1507 | else |
ce33ee7c | 1508 | libc_cv_initfini_array=no |
5241882c UD |
1509 | fi |
1510 | else | |
ce33ee7c | 1511 | libc_cv_initfini_array=no |
5241882c UD |
1512 | fi |
1513 | rm -f conftest*]) | |
ce33ee7c UD |
1514 | if test $libc_cv_initfini_array != yes; then |
1515 | AC_MSG_ERROR([Need linker with .init_array/.fini_array support.]) | |
5241882c UD |
1516 | fi |
1517 | ||
c776b3d7 | 1518 | AC_CACHE_CHECK(for libunwind-support in compiler, |
cbdb12de UD |
1519 | libc_cv_cc_with_libunwind, [ |
1520 | cat > conftest.c <<EOF | |
1521 | int main (void) { return 0; } | |
1522 | EOF | |
1523 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ | |
1524 | conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then | |
1525 | libc_cv_cc_with_libunwind=yes | |
1526 | else | |
1527 | libc_cv_cc_with_libunwind=no | |
1528 | fi | |
1529 | rm -f conftest*]) | |
c776b3d7 UD |
1530 | AC_SUBST(libc_cv_cc_with_libunwind) |
1531 | if test $libc_cv_cc_with_libunwind = yes; then | |
1532 | AC_DEFINE(HAVE_CC_WITH_LIBUNWIND) | |
1533 | fi | |
1534 | ||
0fb7851f UD |
1535 | AC_CACHE_CHECK(for -z nodelete option, |
1536 | libc_cv_z_nodelete, [dnl | |
1537 | cat > conftest.c <<EOF | |
1538 | int _start (void) { return 42; } | |
1539 | EOF | |
3217788f | 1540 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1541 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1542 | -nostartfiles -nostdlib |
c2f55635 | 1543 | -Wl,--enable-new-dtags,-z,nodelete 1>&AS_MESSAGE_LOG_FD]) |
0fb7851f UD |
1544 | then |
1545 | libc_cv_z_nodelete=yes | |
1546 | else | |
11bf311e | 1547 | AC_MSG_ERROR(linker with -z nodelete support required) |
0fb7851f UD |
1548 | fi |
1549 | rm -f conftest*]) | |
2f54c82d UD |
1550 | |
1551 | AC_CACHE_CHECK(for -z nodlopen option, | |
1552 | libc_cv_z_nodlopen, [dnl | |
1553 | cat > conftest.c <<EOF | |
1554 | int _start (void) { return 42; } | |
1555 | EOF | |
3217788f | 1556 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1557 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1558 | -nostartfiles -nostdlib |
c2f55635 | 1559 | -Wl,--enable-new-dtags,-z,nodlopen 1>&AS_MESSAGE_LOG_FD]) |
2f54c82d UD |
1560 | then |
1561 | libc_cv_z_nodlopen=yes | |
1562 | else | |
11bf311e | 1563 | AC_MSG_ERROR(linker with -z nodlopen support required) |
2f54c82d UD |
1564 | fi |
1565 | rm -f conftest*]) | |
5d916713 UD |
1566 | |
1567 | AC_CACHE_CHECK(for -z initfirst option, | |
1568 | libc_cv_z_initfirst, [dnl | |
1569 | cat > conftest.c <<EOF | |
1570 | int _start (void) { return 42; } | |
1571 | EOF | |
3217788f | 1572 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1573 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1574 | -nostartfiles -nostdlib |
c2f55635 | 1575 | -Wl,--enable-new-dtags,-z,initfirst 1>&AS_MESSAGE_LOG_FD]) |
5d916713 UD |
1576 | then |
1577 | libc_cv_z_initfirst=yes | |
1578 | else | |
11bf311e | 1579 | AC_MSG_ERROR(linker with -z initfirst support required) |
5d916713 UD |
1580 | fi |
1581 | rm -f conftest*]) | |
639c3248 | 1582 | |
11bf311e UD |
1583 | case "$base_machine" in |
1584 | changequote(,)dnl | |
1585 | i[34567]86 | x86_64 | powerpc* | s390* | sparc* | alpha*) | |
1586 | changequote([,])dnl | |
1587 | AC_CACHE_CHECK(for -z relro option, | |
1588 | libc_cv_z_relro, [dnl | |
54beacab | 1589 | libc_cv_z_relro=no |
ed20b3d9 UD |
1590 | if AC_TRY_COMMAND([${CC-cc} -v --help 2>&1|grep "z relro" 1>&AS_MESSAGE_LOG_FD]) |
1591 | then | |
54beacab UD |
1592 | if AC_TRY_COMMAND([${CC-cc} -Wl,--verbose 2>&1|grep DATA_SEGMENT_RELRO_END 1>&AS_MESSAGE_LOG_FD]) |
1593 | then | |
1594 | libc_cv_z_relro=yes | |
1595 | fi | |
ed20b3d9 | 1596 | fi]) |
11bf311e UD |
1597 | if test "$libc_cv_z_relro" = no; then |
1598 | AC_MSG_ERROR(linker with -z relro support required) | |
1599 | fi | |
1600 | ;; | |
1601 | *) ;; | |
1602 | esac | |
ed20b3d9 | 1603 | |
639c3248 UD |
1604 | AC_CACHE_CHECK(for -Bgroup option, |
1605 | libc_cv_Bgroup, [dnl | |
1606 | cat > conftest.c <<EOF | |
1607 | int _start (void) { return 42; } | |
1608 | EOF | |
3217788f | 1609 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1610 | -fPIC -shared -o conftest.so conftest.c |
3217788f | 1611 | -Wl,-Bgroup -nostdlib 1>&AS_MESSAGE_LOG_FD]) |
639c3248 UD |
1612 | then |
1613 | libc_cv_Bgroup=yes | |
1614 | else | |
1615 | libc_cv_Bgroup=no | |
1616 | fi | |
1617 | rm -f conftest*]) | |
1618 | AC_SUBST(libc_cv_Bgroup) | |
a711b01d | 1619 | |
cdbf48be UD |
1620 | AC_CACHE_CHECK(for libgcc_s suffix, |
1621 | libc_cv_libgcc_s_suffix, [dnl | |
1622 | cat > conftest.c <<EOF | |
1623 | int main (void) { return 0; } | |
1624 | EOF | |
1625 | changequote(,)dnl | |
1626 | libc_cv_libgcc_s_suffix=`${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
dbc92dc6 | 1627 | -fPIC -shared -shared-libgcc -o conftest.so \ |
cdbf48be UD |
1628 | conftest.c -v 2>&1 >/dev/null \ |
1629 | | sed -n 's/^.* -lgcc_s\([^ ]*\) .*$/\1/p'` | |
1630 | changequote([,])dnl | |
1631 | rm -f conftest*]) | |
1632 | AC_SUBST(libc_cv_libgcc_s_suffix) | |
1633 | ||
feca5e0b UD |
1634 | AC_CACHE_CHECK(for --as-needed option, |
1635 | libc_cv_as_needed, [dnl | |
1636 | cat > conftest.c <<EOF | |
1637 | int main (void) { return 0; } | |
1638 | EOF | |
1639 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS | |
dbc92dc6 | 1640 | -fPIC -shared -o conftest.so conftest.c |
cdbf48be UD |
1641 | -lgcc_s$libc_cv_libgcc_s_suffix -Wl,--as-needed |
1642 | -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
feca5e0b UD |
1643 | then |
1644 | libc_cv_as_needed=yes | |
1645 | else | |
1646 | libc_cv_as_needed=no | |
1647 | fi | |
1648 | rm -f conftest*]) | |
1649 | AC_SUBST(libc_cv_as_needed) | |
1650 | ||
35915ec8 UD |
1651 | ASFLAGS_config= |
1652 | AC_CACHE_CHECK(whether --noexecstack is desirable for .S files, | |
1653 | libc_cv_as_noexecstack, [dnl | |
1654 | cat > conftest.c <<EOF | |
1655 | void foo (void) { } | |
1656 | EOF | |
1657 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS | |
1658 | -S -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) \ | |
1659 | && grep -q .note.GNU-stack conftest.s \ | |
215a8745 | 1660 | && AC_TRY_COMMAND([${CC-cc} $ASFLAGS -Wa,--noexecstack |
35915ec8 UD |
1661 | -c -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD]) |
1662 | then | |
1663 | libc_cv_as_noexecstack=yes | |
1664 | else | |
1665 | libc_cv_as_noexecstack=no | |
1666 | fi | |
1667 | rm -f conftest*]) | |
1668 | if test $libc_cv_as_noexecstack = yes; then | |
1669 | ASFLAGS_config="$ASFLAGS_config -Wa,--noexecstack" | |
1670 | fi | |
1671 | AC_SUBST(ASFLAGS_config) | |
2abf9ff1 | 1672 | |
a711b01d UD |
1673 | AC_CACHE_CHECK(for -z combreloc, |
1674 | libc_cv_z_combreloc, [dnl | |
1675 | cat > conftest.c <<EOF | |
d555194c UD |
1676 | extern int bar (int); |
1677 | extern int mumble; | |
1678 | int foo (void) { return bar (mumble); } | |
a711b01d | 1679 | EOF |
3217788f | 1680 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1681 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1682 | -nostdlib -nostartfiles |
c2f55635 | 1683 | -Wl,-z,combreloc 1>&AS_MESSAGE_LOG_FD]) |
a711b01d UD |
1684 | then |
1685 | dnl The following test is a bit weak. We must use a tool which can test | |
1686 | dnl cross-platform since the gcc used can be a cross compiler. Without | |
1687 | dnl introducing new options this is not easily doable. Instead use a tool | |
1688 | dnl which always is cross-platform: readelf. To detect whether -z combreloc | |
1689 | dnl look for a section named .rel.dyn. | |
fdde8349 UD |
1690 | if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then |
1691 | libc_cv_z_combreloc=yes | |
1692 | else | |
1693 | libc_cv_z_combreloc=no | |
a711b01d | 1694 | fi |
fdde8349 UD |
1695 | else |
1696 | libc_cv_z_combreloc=no | |
a711b01d UD |
1697 | fi |
1698 | rm -f conftest*]) | |
fdde8349 UD |
1699 | if test "$libc_cv_z_combreloc" = yes; then |
1700 | AC_DEFINE(HAVE_Z_COMBRELOC) | |
1701 | fi | |
2abf9ff1 RM |
1702 | AC_SUBST(libc_cv_z_combreloc) |
1703 | ||
1704 | AC_CACHE_CHECK(for -z execstack, | |
1705 | libc_cv_z_execstack, [dnl | |
1706 | cat > conftest.c <<EOF | |
1707 | int _start (void) { return 42; } | |
1708 | EOF | |
1709 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS | |
dbc92dc6 | 1710 | -fPIC -shared -o conftest.so conftest.c |
2abf9ff1 RM |
1711 | -Wl,-z,execstack -nostdlib |
1712 | 1>&AS_MESSAGE_LOG_FD]) | |
1713 | then | |
1714 | libc_cv_z_execstack=yes | |
1715 | else | |
1716 | libc_cv_z_execstack=no | |
1717 | fi | |
1718 | rm -f conftest*]) | |
1719 | AC_SUBST(libc_cv_z_execstack) | |
c9c60884 UD |
1720 | |
1721 | AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl | |
1722 | cat > conftest.c <<EOF | |
1723 | int foo; | |
49803108 | 1724 | main () { return 0;} |
c9c60884 UD |
1725 | EOF |
1726 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie | |
1727 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
1728 | then | |
1729 | libc_cv_fpie=yes | |
1730 | else | |
1731 | libc_cv_fpie=no | |
1732 | fi | |
1733 | rm -f conftest*]) | |
1734 | ||
1735 | AC_SUBST(libc_cv_fpie) | |
871b9158 UD |
1736 | |
1737 | AC_CACHE_CHECK(for --hash-style option, | |
1738 | libc_cv_hashstyle, [dnl | |
1739 | cat > conftest.c <<EOF | |
1740 | int _start (void) { return 42; } | |
1741 | EOF | |
1742 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS | |
1743 | -fPIC -shared -o conftest.so conftest.c | |
1744 | -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1745 | then | |
1746 | libc_cv_hashstyle=yes | |
1747 | else | |
1748 | libc_cv_hashstyle=no | |
1749 | fi | |
1750 | rm -f conftest*]) | |
1751 | AC_SUBST(libc_cv_hashstyle) | |
fd26970f | 1752 | fi |
49803108 | 1753 | |
22dca1ea | 1754 | AC_CACHE_CHECK(for -fno-toplevel-reorder -fno-section-anchors, libc_cv_fno_toplevel_reorder, [dnl |
49803108 AJ |
1755 | cat > conftest.c <<EOF |
1756 | int foo; | |
1757 | EOF | |
22dca1ea | 1758 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors |
49803108 AJ |
1759 | conftest.c 1>&AS_MESSAGE_LOG_FD]) |
1760 | then | |
18e2ac6d | 1761 | libc_cv_fno_toplevel_reorder=yes |
49803108 | 1762 | else |
18e2ac6d | 1763 | libc_cv_fno_toplevel_reorder=no |
49803108 AJ |
1764 | fi |
1765 | rm -f conftest*]) | |
18e2ac6d | 1766 | if test $libc_cv_fno_toplevel_reorder = yes; then |
22dca1ea | 1767 | fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors" |
18e2ac6d | 1768 | else |
49803108 AJ |
1769 | fno_unit_at_a_time=-fno-unit-at-a-time |
1770 | fi | |
1771 | AC_SUBST(fno_unit_at_a_time) | |
fd26970f | 1772 | |
401a9ec9 UD |
1773 | AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl |
1774 | cat > conftest.c <<EOF | |
1775 | int foo; | |
1776 | main () { return 0;} | |
1777 | EOF | |
a40fbc8d | 1778 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -Werror -fstack-protector |
401a9ec9 UD |
1779 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) |
1780 | then | |
1781 | libc_cv_ssp=yes | |
1782 | else | |
1783 | libc_cv_ssp=no | |
1784 | fi | |
1785 | rm -f conftest*]) | |
1786 | AC_SUBST(libc_cv_ssp) | |
1787 | ||
b037a293 UD |
1788 | AC_CACHE_CHECK(for -fgnu89-inline, libc_cv_gnu89_inline, [dnl |
1789 | cat > conftest.c <<EOF | |
1790 | int foo; | |
1791 | #ifdef __GNUC_GNU_INLINE__ | |
1792 | main () { return 0;} | |
1793 | #else | |
1794 | #error | |
1795 | #endif | |
1796 | EOF | |
371f84a4 JJ |
1797 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -std=gnu99 -fgnu89-inline |
1798 | -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
b037a293 UD |
1799 | then |
1800 | libc_cv_gnu89_inline=yes | |
1801 | else | |
1802 | libc_cv_gnu89_inline=no | |
1803 | fi | |
1804 | rm -f conftest*]) | |
1805 | if test $libc_cv_gnu89_inline = yes; then | |
1806 | libc_cv_gnu89_inline=-fgnu89-inline | |
1807 | else | |
1808 | libc_cv_gnu89_inline= | |
1809 | fi | |
1810 | AC_SUBST(libc_cv_gnu89_inline) | |
1811 | ||
b8dc6a10 RM |
1812 | if test $elf != yes; then |
1813 | AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini, | |
1814 | [AC_TRY_COMPILE(, [asm (".section .init"); | |
84724245 | 1815 | asm (".section .fini"); |
2293395f | 1816 | asm ("${libc_cv_dot_text}");], |
b8dc6a10 RM |
1817 | libc_cv_have_initfini=yes, |
1818 | libc_cv_have_initfini=no)]) | |
1819 | AC_SUBST(libc_cv_have_initfini)dnl | |
1820 | if test $libc_cv_have_initfini = yes; then | |
1821 | AC_DEFINE(HAVE_INITFINI) | |
1822 | fi | |
1823 | fi | |
e215c478 | 1824 | |
57d44131 | 1825 | if test $elf = yes; then |
e26dd47f UD |
1826 | AC_CACHE_CHECK(whether cc puts quotes around section names, |
1827 | libc_cv_have_section_quotes, | |
1828 | [cat > conftest.c <<EOF | |
1829 | static const int foo | |
1830 | __attribute__ ((section ("bar"))) = 1; | |
1831 | EOF | |
1832 | if ${CC-cc} -S conftest.c -o conftest.s; then | |
1833 | if grep '\.section.*"bar"' conftest.s >/dev/null; then | |
1834 | libc_cv_have_section_quotes=yes | |
1835 | else | |
1836 | libc_cv_have_section_quotes=no | |
1837 | fi | |
1838 | else | |
1839 | libc_cv_have_section_quotes=unknown | |
1840 | fi | |
1841 | rm -f conftest.[cs] | |
1842 | ]) | |
1843 | if test $libc_cv_have_section_quotes = yes; then | |
1844 | AC_DEFINE(HAVE_SECTION_QUOTES) | |
1845 | fi | |
1846 | fi | |
1847 | ||
9a0a462c UD |
1848 | dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) |
1849 | AC_DEFUN(AC_CHECK_ASM_UNDERSCORE, | |
1850 | [cat > conftest.$ac_ext <<EOF | |
1851 | dnl This sometimes fails to find confdefs.h, for some reason. | |
85dd1003 UD |
1852 | dnl [#]line $LINENO "[$]0" |
1853 | [#]line $LINENO "configure" | |
9a0a462c UD |
1854 | #include "confdefs.h" |
1855 | void underscore_test(void) { | |
1856 | return; } | |
1857 | EOF | |
1858 | if AC_TRY_EVAL(ac_compile); then | |
1859 | if grep _underscore_test conftest* >/dev/null; then | |
1860 | ifelse([$1], , :, [rm -f conftest* | |
1861 | $1]) | |
1862 | else | |
1863 | ifelse([$2], , , [rm -f conftest* | |
1864 | $2]) | |
1865 | fi | |
1866 | else | |
c2f55635 RM |
1867 | echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD |
1868 | cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD | |
9a0a462c UD |
1869 | ifelse([$2], , , [rm -f conftest* |
1870 | $2]) | |
1871 | fi | |
1872 | rm -f conftest*]) | |
1873 | ||
c224a18a RM |
1874 | if test $elf = yes; then |
1875 | libc_cv_asm_underscores=no | |
1876 | else | |
9a0a462c UD |
1877 | if test $ac_cv_prog_cc_works = yes; then |
1878 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
1879 | [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();], | |
1880 | libc_cv_asm_underscores=yes, | |
1881 | libc_cv_asm_underscores=no)]) | |
1882 | else | |
1883 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
1884 | [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes, | |
1885 | libc_cv_asm_underscores=no)]) | |
1886 | fi | |
c224a18a RM |
1887 | fi |
1888 | if test $libc_cv_asm_underscores = no; then | |
1889 | AC_DEFINE(NO_UNDERSCORES) | |
1890 | fi | |
1891 | ||
1892 | if test $elf = yes; then | |
1893 | libc_cv_weak_symbols=yes | |
9a97d1f7 UD |
1894 | fi |
1895 | ||
1896 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
75d86c1f | 1897 | [dnl |
c224a18a | 1898 | cat > conftest.s <<EOF |
2293395f | 1899 | ${libc_cv_dot_text} |
c224a18a | 1900 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1901 | foo: |
c224a18a RM |
1902 | .weak foo |
1903 | .weak bar; bar = foo | |
1904 | EOF | |
3217788f | 1905 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a97d1f7 UD |
1906 | libc_cv_asm_weak_directive=yes |
1907 | else | |
1908 | libc_cv_asm_weak_directive=no | |
1909 | fi | |
1910 | rm -f conftest*]) | |
c224a18a | 1911 | |
c8cf0b14 | 1912 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
1913 | AC_CACHE_CHECK(for assembler .weakext directive, |
1914 | libc_cv_asm_weakext_directive, | |
1915 | [dnl | |
1916 | cat > conftest.s <<EOF | |
2293395f | 1917 | ${libc_cv_dot_text} |
c224a18a | 1918 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1919 | foo: |
f802accb UD |
1920 | .weakext bar foo |
1921 | .weakext baz | |
1922 | ${libc_cv_asm_global_directive} baz | |
9a97d1f7 | 1923 | baz: |
c224a18a | 1924 | EOF |
3217788f | 1925 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
c224a18a RM |
1926 | libc_cv_asm_weakext_directive=yes |
1927 | else | |
1928 | libc_cv_asm_weakext_directive=no | |
1929 | fi | |
1930 | rm -f conftest*]) | |
1931 | ||
9a97d1f7 | 1932 | fi # no .weak |
c224a18a | 1933 | |
ffcf9634 | 1934 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 1935 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 1936 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
1937 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
1938 | fi | |
1939 | ||
50189569 | 1940 | AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl |
ced368f7 UD |
1941 | case $machine in |
1942 | sparc/sparc64*) cfi_offset=2047;; | |
1943 | *) cfi_offset=0;; | |
1944 | esac | |
50189569 AJ |
1945 | cat > conftest.s <<EOF |
1946 | .text | |
d0868826 | 1947 | .type func,%function |
50189569 AJ |
1948 | func: |
1949 | .cfi_startproc | |
f212e8dc | 1950 | .cfi_remember_state |
ced368f7 | 1951 | .cfi_rel_offset 1, $cfi_offset |
50189569 AJ |
1952 | .cfi_endproc |
1953 | EOF | |
1954 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1955 | libc_cv_asm_cfi_directives=yes | |
1956 | else | |
1957 | libc_cv_asm_cfi_directives=no | |
1958 | fi | |
1959 | rm -f conftest*]) | |
1960 | if test $libc_cv_asm_cfi_directives = yes; then | |
1961 | AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) | |
bcd5f356 | 1962 | fi |
50189569 | 1963 | |
a641835a RM |
1964 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
1965 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 1966 | _start () {} |
dcf0671d UD |
1967 | int __eh_pc; |
1968 | __throw () {} | |
a641835a | 1969 | EOF |
dcea62dd | 1970 | dnl No \ in command here because it ends up inside ''. |
3217788f | 1971 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dcea62dd | 1972 | -nostdlib -nostartfiles -Wl,--no-whole-archive |
c2f55635 | 1973 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
a641835a RM |
1974 | libc_cv_ld_no_whole_archive=yes |
1975 | else | |
1976 | libc_cv_ld_no_whole_archive=no | |
1977 | fi | |
1978 | rm -f conftest*]) | |
b17277cf UD |
1979 | if test $libc_cv_ld_no_whole_archive = yes; then |
1980 | no_whole_archive=-Wl,--no-whole-archive | |
1981 | fi | |
1982 | AC_SUBST(no_whole_archive)dnl | |
a641835a | 1983 | |
dff14448 | 1984 | AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl |
b236e99d UD |
1985 | cat > conftest.c <<\EOF |
1986 | _start () {} | |
1987 | int __eh_pc; | |
1988 | __throw () {} | |
1989 | EOF | |
1990 | dnl No \ in command here because it ends up inside ''. | |
3217788f | 1991 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dff14448 | 1992 | -nostdlib -nostartfiles -fexceptions |
c2f55635 | 1993 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
dff14448 | 1994 | libc_cv_gcc_exceptions=yes |
b236e99d | 1995 | else |
dff14448 | 1996 | libc_cv_gcc_exceptions=no |
b236e99d UD |
1997 | fi |
1998 | rm -f conftest*]) | |
dff14448 UD |
1999 | if test $libc_cv_gcc_exceptions = yes; then |
2000 | exceptions=-fexceptions | |
b17277cf | 2001 | fi |
dff14448 | 2002 | AC_SUBST(exceptions)dnl |
b236e99d | 2003 | |
66000494 UD |
2004 | if test "$host_cpu" = powerpc ; then |
2005 | # Check for a bug present in at least versions 2.8.x of GCC | |
2006 | # and versions 1.0.x of EGCS. | |
2007 | AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl | |
2008 | AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, | |
2009 | libc_cv_c_asmcr0_bug='no', | |
2010 | libc_cv_c_asmcr0_bug='yes')]) | |
2011 | if test "$libc_cv_c_asmcr0_bug" != 'no'; then | |
2012 | AC_DEFINE(BROKEN_PPC_ASM_CR0) | |
2013 | fi | |
2014 | fi | |
2015 | ||
a8eab8b1 UD |
2016 | dnl Check whether compiler understands __builtin_expect. |
2017 | AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect, | |
2018 | [cat > conftest.c <<EOF | |
85dd1003 | 2019 | #line $LINENO "configure" |
a8eab8b1 UD |
2020 | int foo (int a) |
2021 | { | |
2022 | a = __builtin_expect (a, 10); | |
2023 | return a == 10 ? 0 : 1; | |
2024 | } | |
2025 | EOF | |
2026 | dnl No \ in command here because it ends up inside ''. | |
3217788f | 2027 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles |
c2f55635 | 2028 | -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then |
a8eab8b1 UD |
2029 | libc_cv_gcc_builtin_expect=yes |
2030 | else | |
2031 | libc_cv_gcc_builtin_expect=no | |
2032 | fi | |
2033 | rm -f conftest*]) | |
2034 | if test "$libc_cv_gcc_builtin_expect" = yes; then | |
2035 | AC_DEFINE(HAVE_BUILTIN_EXPECT) | |
2036 | fi | |
2037 | ||
d555194c UD |
2038 | AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl |
2039 | cat > conftest.c <<\EOF | |
2040 | void zero (void *x) | |
2041 | { | |
a52d1562 | 2042 | __builtin_memset (x, 0, 1000); |
d555194c UD |
2043 | } |
2044 | EOF | |
2045 | dnl | |
2046 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]); | |
2047 | then | |
2048 | libc_cv_gcc_builtin_memset=no | |
2049 | else | |
2050 | libc_cv_gcc_builtin_memset=yes | |
2051 | fi | |
2052 | rm -f conftest* ]) | |
2053 | if test "$libc_cv_gcc_builtin_memset" = yes ; then | |
2054 | AC_DEFINE(HAVE_BUILTIN_MEMSET) | |
2055 | fi | |
2056 | ||
85dd1003 UD |
2057 | AC_CACHE_CHECK(for redirection of built-in functions, libc_cv_gcc_builtin_redirection, [dnl |
2058 | cat > conftest.c <<\EOF | |
2059 | extern char *strstr (const char *, const char *) __asm ("my_strstr"); | |
2060 | char *foo (const char *a, const char *b) | |
2061 | { | |
2062 | return __builtin_strstr (a, b); | |
2063 | } | |
2064 | EOF | |
2065 | dnl | |
2066 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "my_strstr" > /dev/null]); | |
2067 | then | |
2068 | libc_cv_gcc_builtin_redirection=yes | |
2069 | else | |
2070 | libc_cv_gcc_builtin_redirection=no | |
2071 | fi | |
2072 | rm -f conftest* ]) | |
2073 | if test "$libc_cv_gcc_builtin_redirection" = yes ; then | |
2074 | AC_DEFINE(HAVE_BUILTIN_REDIRECTION) | |
2075 | fi | |
2076 | ||
739d440d | 2077 | dnl Check whether the compiler supports the __thread keyword. |
5b8f26b4 RM |
2078 | if test "x$use__thread" != xno; then |
2079 | AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread, | |
2080 | [cat > conftest.c <<\EOF | |
fbb18522 RM |
2081 | __thread int a = 42; |
2082 | EOF | |
3217788f | 2083 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD]); then |
5b8f26b4 RM |
2084 | libc_cv_gcc___thread=yes |
2085 | else | |
2086 | libc_cv_gcc___thread=no | |
2087 | fi | |
2088 | rm -f conftest*]) | |
2089 | if test "$libc_cv_gcc___thread" = yes; then | |
2090 | AC_DEFINE(HAVE___THREAD) | |
2091 | fi | |
739d440d UD |
2092 | else |
2093 | libc_cv_gcc___thread=no | |
2094 | fi | |
739d440d | 2095 | |
9b21e6bc RM |
2096 | if test "$libc_cv_gcc___thread" = yes; then |
2097 | dnl Check whether the compiler supports the tls_model attribute. | |
2098 | AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl | |
2099 | cat > conftest.c <<\EOF | |
2100 | extern __thread int a __attribute__((tls_model ("initial-exec"))); | |
2101 | EOF | |
3217788f | 2102 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -Werror conftest.c >&AS_MESSAGE_LOG_FD]); then |
9b21e6bc RM |
2103 | libc_cv_gcc_tls_model_attr=yes |
2104 | else | |
2105 | libc_cv_gcc_tls_model_attr=no | |
2106 | fi | |
2107 | rm -f conftest*]) | |
2108 | if test "$libc_cv_gcc_tls_model_attr" = yes; then | |
2109 | AC_DEFINE(HAVE_TLS_MODEL_ATTRIBUTE) | |
2110 | fi | |
2111 | fi | |
739d440d | 2112 | |
2cf9ad57 RM |
2113 | if test -n "$submachine"; then |
2114 | AC_CACHE_CHECK([for compiler option for CPU variant], | |
2115 | libc_cv_cc_submachine, [dnl | |
2116 | libc_cv_cc_submachine=no | |
2117 | for opt in "-march=$submachine" "-mcpu=$submachine"; do | |
2118 | if AC_TRY_COMMAND([${CC-cc} $opt -xc /dev/null -S -o /dev/null]); then | |
2119 | libc_cv_cc_submachine="$opt" | |
2120 | break | |
2121 | fi | |
2122 | done]) | |
2123 | if test "x$libc_cv_cc_submachine" = xno; then | |
2124 | AC_MSG_ERROR([${CC-cc} does not support $submachine]) | |
2125 | fi | |
2126 | fi | |
2127 | AC_SUBST(libc_cv_cc_submachine) | |
2128 | ||
c8f3e6db UD |
2129 | dnl Check whether we have the gd library available. |
2130 | AC_MSG_CHECKING(for libgd) | |
6dab8688 UD |
2131 | if test "$with_gd" != "no"; then |
2132 | old_CFLAGS="$CFLAGS" | |
2133 | CFLAGS="$CFLAGS $libgd_include" | |
2134 | old_LDFLAGS="$LDFLAGS" | |
2135 | LDFLAGS="$LDFLAGS $libgd_ldflags" | |
2136 | old_LIBS="$LIBS" | |
2137 | LIBS="$LIBS -lgd -lpng -lz -lm" | |
2138 | AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no) | |
2139 | CFLAGS="$old_CFLAGS" | |
2140 | LDFLAGS="$old_LDFLAGS" | |
2141 | LIBS="$old_LIBS" | |
2142 | else | |
2143 | LIBGD=no | |
2144 | fi | |
c8f3e6db UD |
2145 | AC_MSG_RESULT($LIBGD) |
2146 | AC_SUBST(LIBGD) | |
3d558f4e | 2147 | |
2fff3d93 UD |
2148 | # SELinux detection |
2149 | if test x$with_selinux = xno ; then | |
2150 | have_selinux=no; | |
2151 | else | |
2152 | # See if we have the SELinux library | |
2153 | AC_CHECK_LIB(selinux, is_selinux_enabled, | |
2154 | have_selinux=yes, have_selinux=no) | |
2155 | # See if we have the SELinux header with the NSCD permissions in it. | |
2156 | if test x$have_selinux = xyes ; then | |
2157 | AC_MSG_CHECKING([for NSCD Flask permissions in selinux/av_permissions.h]) | |
2158 | AC_TRY_COMPILE([#include <selinux/av_permissions.h>], | |
2159 | [#ifdef NSCD__SHMEMHOST | |
2160 | return 0; | |
2161 | #else | |
2162 | #error NSCD__SHMEMHOST not defined | |
2163 | #endif], | |
2164 | have_selinux=yes, have_selinux=no) | |
2165 | AC_MSG_RESULT($have_selinux) | |
2166 | fi | |
2167 | ||
49155d51 | 2168 | if test x$with_selinux = xyes ; then |
2fff3d93 | 2169 | if test x$have_selinux = xno ; then |
49155d51 | 2170 | AC_MSG_ERROR([SELinux explicitly required, but sufficiently recent SELinux library not found]) |
2fff3d93 UD |
2171 | fi |
2172 | fi | |
2173 | fi | |
2174 | # Check if we're building with SELinux support. | |
2175 | if test "x$have_selinux" = xyes; then | |
943db9eb | 2176 | AC_DEFINE(HAVE_SELINUX, 1, [SELinux support]) |
ec23b9be UD |
2177 | |
2178 | # See if we have the libaudit library | |
943db9eb UD |
2179 | AC_CHECK_LIB(audit, audit_log_user_avc_message, |
2180 | have_libaudit=yes, have_libaudit=no) | |
ec23b9be | 2181 | if test "x$have_libaudit" = xyes; then |
943db9eb | 2182 | AC_DEFINE(HAVE_LIBAUDIT, 1, [SELinux libaudit support]) |
ec23b9be UD |
2183 | fi |
2184 | AC_SUBST(have_libaudit) | |
1f063dca UD |
2185 | |
2186 | # See if we have the libcap library | |
2187 | AC_CHECK_LIB(cap, cap_init, have_libcap=yes, have_libcap=no) | |
2188 | if test "x$have_libcap" = xyes; then | |
2189 | AC_DEFINE(HAVE_LIBCAP, 1, [SELinux libcap support]) | |
2190 | fi | |
2191 | AC_SUBST(have_libcap) | |
2fff3d93 UD |
2192 | fi |
2193 | AC_SUBST(have_selinux) | |
2194 | ||
8ed1e7d5 GK |
2195 | dnl check for the size of 'long double'. |
2196 | AC_CHECK_SIZEOF(long double, 0) | |
2197 | sizeof_long_double=$ac_cv_sizeof_long_double | |
2198 | AC_SUBST(sizeof_long_double) | |
2199 | ||
c224a18a RM |
2200 | ### End of automated tests. |
2201 | ### Now run sysdeps configure fragments. | |
2202 | ||
cb343854 | 2203 | # They also can set these variables. |
591e1ffb | 2204 | use_ldconfig=no |
cb343854 | 2205 | ldd_rewrite_script=no |
77259608 | 2206 | libc_cv_sysconfdir=$sysconfdir |
74bd2300 | 2207 | libc_cv_gcc_unwind_find_fde=no |
e2fd3cbe | 2208 | libc_cv_idn=no |
cb343854 | 2209 | |
28f540f4 RM |
2210 | # Iterate over all the sysdep directories we will use, running their |
2211 | # configure fragments, and looking for a uname implementation. | |
2212 | uname= | |
2213 | for dir in $sysnames; do | |
57ba7bb4 UD |
2214 | case $dir in |
2215 | /*) dest=$dir ;; | |
2216 | *) dest=$srcdir/$dir ;; | |
2217 | esac | |
2218 | if test -r $dest/configure; then | |
d1149385 | 2219 | AC_MSG_RESULT(running configure fragment for $dir) |
57ba7bb4 | 2220 | . $dest/configure |
28f540f4 | 2221 | fi |
4ca84cff | 2222 | [ |
28f540f4 | 2223 | if test -z "$uname"; then |
e7f1f046 UD |
2224 | if test -r $dest/uname.c || |
2225 | test -r $dest/uname.S || | |
2226 | { test -r $dest/syscalls.list && | |
2227 | grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then | |
b86199fb | 2228 | uname=$dir |
4ca84cff | 2229 | fi |
28f540f4 | 2230 | fi |
4ca84cff | 2231 | ]dnl |
28f540f4 RM |
2232 | done |
2233 | ||
74bd2300 UD |
2234 | if test x$libc_cv_gcc_unwind_find_fde = xyes; then |
2235 | AC_DEFINE(EXPORT_UNWIND_FIND_FDE) | |
2236 | fi | |
2237 | AC_SUBST(libc_cv_gcc_unwind_find_fde) | |
2238 | ||
28f540f4 RM |
2239 | # If we will use the generic uname implementation, we must figure out what |
2240 | # it will say by examining the system, and write the results in config-name.h. | |
e7f1f046 | 2241 | if test "$uname" = "sysdeps/generic"; then |
28f540f4 RM |
2242 | |
2243 | changequote(,)dnl | |
2244 | uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'` | |
2245 | changequote([,])dnl | |
2246 | if test $uname_sysname != $config_os; then | |
2247 | config_release=`echo $config_os | sed s/$uname_sysname//` | |
2248 | fi | |
2249 | dnl | |
2250 | AC_DEFUN(LIBC_KERNEL_ID, [dnl | |
2251 | if test -r /vmunix; then | |
2252 | kernel_id=`strings /vmunix | grep UNIX` | |
2253 | elif test -r /dynix; then | |
2254 | kernel_id=`strings /dynix | grep DYNIX` | |
2255 | else | |
2256 | kernel_id= | |
2257 | fi | |
2258 | ])dnl | |
2259 | ||
b8dc6a10 | 2260 | AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl |
3a12e572 | 2261 | LIBC_KERNEL_ID |
28f540f4 RM |
2262 | changequote(,)dnl |
2263 | kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'` | |
2264 | changequote([,])dnl | |
2265 | if test x`echo "$config_release" | sed "s/^$kernel_release//"` \ | |
2266 | != x$config_release; then | |
2267 | # The configuration release is a substring of the kernel release. | |
2268 | libc_cv_uname_release=$kernel_release | |
2269 | elif test x$config_release != x; then | |
2270 | libc_cv_uname_release=$config_release | |
2271 | elif test x$kernel_release != x; then | |
2272 | libc_cv_uname_release=$kernel_release | |
2273 | else | |
2274 | libc_cv_uname_release=unknown | |
2275 | fi]) | |
28f540f4 RM |
2276 | uname_release="$libc_cv_uname_release" |
2277 | ||
b8dc6a10 | 2278 | AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl |
3a12e572 | 2279 | LIBC_KERNEL_ID |
28f540f4 RM |
2280 | changequote(,)dnl |
2281 | kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'` | |
2282 | changequote([,])dnl | |
2283 | if test -n "$kernel_version"; then | |
2284 | libc_cv_uname_version="$kernel_version" | |
2285 | else | |
2286 | libc_cv_uname_version=unknown | |
2287 | fi]) | |
28f540f4 RM |
2288 | uname_version="$libc_cv_uname_version" |
2289 | ||
2290 | AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl | |
2291 | config_uname=config-name.h:config-name.in | |
2292 | else | |
2293 | # For non-generic uname, we don't need to create config-name.h at all. | |
2294 | config_uname= | |
2295 | fi | |
2296 | ||
a8c01776 RM |
2297 | dnl This is tested by existing code and it's simpler to avoid changing it. |
2298 | AC_DEFINE(USE_IN_LIBIO) | |
96aa2d94 | 2299 | |
a53bad16 UD |
2300 | # Test for old glibc 2.0.x headers so that they can be removed properly |
2301 | # Search only in includedir. | |
2302 | AC_MSG_CHECKING(for old glibc 2.0.x headers) | |
350eb336 | 2303 | if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h" |
a53bad16 UD |
2304 | then |
2305 | old_glibc_headers=yes | |
2306 | else | |
2307 | old_glibc_headers=no | |
2308 | fi | |
2309 | AC_MSG_RESULT($old_glibc_headers) | |
2310 | if test ${old_glibc_headers} = yes; then | |
2311 | AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will) | |
2312 | AC_MSG_WARN(*** be removed.) | |
2313 | fi | |
b195f6bc | 2314 | AC_SUBST(old_glibc_headers) |
26b4d766 | 2315 | |
84384f5b | 2316 | AC_SUBST(libc_cv_slibdir) |
a1d84548 | 2317 | AC_SUBST(libc_cv_localedir) |
77259608 | 2318 | AC_SUBST(libc_cv_sysconfdir) |
1ef32c3d | 2319 | AC_SUBST(libc_cv_rootsbindir) |
bcd5f356 | 2320 | AC_SUBST(libc_cv_forced_unwind) |
1ef32c3d | 2321 | |
58a4b51a RM |
2322 | dnl sysdeps/CPU/configure.in checks set this via arch-specific asm tests |
2323 | AC_SUBST(libc_cv_cpp_asm_debuginfo) | |
06e51c8f | 2324 | AC_SUBST(libc_cv_cc_sse4) |
b0ecde3a | 2325 | AC_SUBST(libc_cv_cc_avx) |
01f1f5ee | 2326 | AC_SUBST(libc_cv_as_i686) |
58a4b51a | 2327 | |
591e1ffb | 2328 | AC_SUBST(use_ldconfig) |
cb343854 | 2329 | AC_SUBST(ldd_rewrite_script) |
84384f5b | 2330 | |
d0b2cbf8 | 2331 | AC_SUBST(elf) AC_SUBST(xcoff) |
28f540f4 RM |
2332 | if test $elf = yes; then |
2333 | AC_DEFINE(HAVE_ELF) | |
2334 | fi | |
5af3245a UD |
2335 | if test $xcoff = yes; then |
2336 | AC_DEFINE(HAVE_XCOFF) | |
2337 | fi | |
28f540f4 | 2338 | |
650425ce | 2339 | AC_SUBST(static) |
ff3d7ed3 RM |
2340 | AC_SUBST(shared) |
2341 | if test $shared = default; then | |
57d44131 | 2342 | shared=$elf |
a334319f UD |
2343 | fi |
2344 | ||
ff886b82 UD |
2345 | AC_CACHE_CHECK([whether -fPIC is default], libc_cv_pic_default, |
2346 | [libc_cv_pic_default=yes | |
cc3fa755 | 2347 | cat > conftest.c <<EOF |
9756dfe1 | 2348 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
2349 | # error PIC is default. |
2350 | #endif | |
2351 | EOF | |
0b4ee387 | 2352 | if eval "${CC-cc} -S conftest.c 2>&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then |
ff886b82 | 2353 | libc_cv_pic_default=no |
cc3fa755 UD |
2354 | fi |
2355 | rm -f conftest.*]) | |
ff886b82 | 2356 | AC_SUBST(libc_cv_pic_default) |
cc3fa755 | 2357 | |
ff3d7ed3 RM |
2358 | AC_SUBST(profile) |
2359 | AC_SUBST(omitfp) | |
5a97622d | 2360 | AC_SUBST(bounded) |
5107cf1d | 2361 | AC_SUBST(static_nss) |
5ae3e846 | 2362 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 2363 | |
edf5b2d7 UD |
2364 | AC_SUBST(DEFINES) |
2365 | ||
61c83c3f RM |
2366 | dnl See sysdeps/mach/configure.in for this variable. |
2367 | AC_SUBST(mach_interface_list) | |
2368 | ||
28f540f4 RM |
2369 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
2370 | config_makefile= | |
2371 | else | |
2372 | config_makefile=Makefile | |
2373 | fi | |
2374 | ||
ee74a442 UD |
2375 | VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h` |
2376 | RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h` | |
df4ef2ab | 2377 | AC_SUBST(VERSION) |
ee74a442 | 2378 | AC_SUBST(RELEASE) |
df4ef2ab | 2379 | |
31075c2f | 2380 | AC_CONFIG_FILES([config.make ${config_makefile} ${config_uname}]) |
c118d634 | 2381 | AC_CONFIG_COMMANDS([default],[[ |
737547be UD |
2382 | case $CONFIG_FILES in *config.make*) |
2383 | echo "$config_vars" >> config.make;; | |
2384 | esac | |
c118d634 RM |
2385 | test -d bits || mkdir bits]],[[config_vars='$config_vars']]) |
2386 | AC_OUTPUT |