]>
Commit | Line | Data |
---|---|---|
f4017d20 | 1 | dnl Process this file with autoconf to produce a configure script. |
3a12e572 | 2 | AC_PREREQ(2.53)dnl dnl Minimum Autoconf version required. |
f318beb8 | 3 | AC_INIT([GNU C Library], [(see version.h)], [http://sourceware.org/bugzilla/], [glibc]) |
5d77b1da | 4 | AC_CONFIG_SRCDIR([include/features.h]) |
6b7f6183 RM |
5 | AC_CONFIG_HEADERS([config.h]) |
6 | AC_CONFIG_AUX_DIR([scripts]) | |
28f540f4 | 7 | |
7967983f RM |
8 | dnl This is here so we can set $subdirs directly based on configure fragments. |
9 | AC_CONFIG_SUBDIRS() | |
10 | ||
c16a054d AS |
11 | AC_CANONICAL_HOST |
12 | ||
c0bac8b0 UD |
13 | AC_PROG_CC |
14 | if test $host != $build; then | |
15 | AC_CHECK_PROGS(BUILD_CC, gcc cc) | |
16 | fi | |
17 | AC_SUBST(cross_compiling) | |
18 | AC_PROG_CPP | |
19 | # We need the C++ compiler only for testing. | |
20 | AC_PROG_CXX | |
21 | ||
c72637d4 RM |
22 | if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then |
23 | AC_MSG_ERROR([you must configure in a separate build directory]) | |
24 | fi | |
25 | ||
28f540f4 RM |
26 | # This will get text that should go into config.make. |
27 | config_vars= | |
28 | ||
c8f3e6db | 29 | # Check for a --with-gd argument and set libgd-LDFLAGS in config.make. |
6b7f6183 | 30 | AC_ARG_WITH([gd], |
77e8bddf AS |
31 | AC_HELP_STRING([--with-gd=DIR], |
32 | [find libgd include dir and library with prefix DIR]), | |
c8f3e6db UD |
33 | [dnl |
34 | case "$with_gd" in | |
f5f7239f UD |
35 | yes|''|no) ;; |
36 | *) libgd_include="-I$withval/include" | |
c8f3e6db UD |
37 | libgd_ldflags="-L$withval/lib" ;; |
38 | esac | |
39 | ]) | |
6b7f6183 | 40 | AC_ARG_WITH([gd-include], |
77e8bddf AS |
41 | AC_HELP_STRING([--with-gd-include=DIR], |
42 | [find libgd include files in DIR]), | |
43 | [dnl | |
f5f7239f UD |
44 | case "$with_gd_include" in |
45 | ''|no) ;; | |
46 | *) libgd_include="-I$withval" ;; | |
47 | esac | |
48 | ]) | |
6b7f6183 | 49 | AC_ARG_WITH([gd-lib], |
77e8bddf AS |
50 | AC_HELP_STRING([--with-gd-lib=DIR], |
51 | [find libgd library files in DIR]), | |
52 | [dnl | |
f5f7239f UD |
53 | case "$with_gd_lib" in |
54 | ''|no) ;; | |
55 | *) libgd_ldflags="-L$withval" ;; | |
56 | esac | |
57 | ]) | |
58 | ||
59 | if test -n "$libgd_include"; then | |
60 | config_vars="$config_vars | |
cf90163d | 61 | CFLAGS-memusagestat.c = $libgd_include" |
f5f7239f UD |
62 | fi |
63 | if test -n "$libgd_ldflags"; then | |
64 | config_vars="$config_vars | |
65 | libgd-LDFLAGS = $libgd_ldflags" | |
66 | fi | |
28f540f4 | 67 | |
ff3d7ed3 | 68 | dnl Arguments to specify presence of other packages/features. |
6b7f6183 | 69 | AC_ARG_WITH([fp], |
77e8bddf AS |
70 | AC_HELP_STRING([--with-fp], |
71 | [if using floating-point hardware @<:@default=yes@:>@]), | |
6b7f6183 RM |
72 | [with_fp=$withval], |
73 | [with_fp=yes]) | |
675322a5 | 74 | AC_SUBST(with_fp) |
6b7f6183 | 75 | AC_ARG_WITH([binutils], |
77e8bddf AS |
76 | AC_HELP_STRING([--with-binutils=PATH], |
77 | [specify location of binutils (as and ld)]), | |
6b7f6183 RM |
78 | [path_binutils=$withval], |
79 | [path_binutils='']) | |
2fff3d93 | 80 | AC_ARG_WITH([selinux], |
77e8bddf AS |
81 | AC_HELP_STRING([--with-selinux], |
82 | [if building with SELinux support]), | |
2fff3d93 UD |
83 | [with_selinux=$withval], |
84 | [with_selinux=auto]) | |
28f540f4 | 85 | |
6b7f6183 | 86 | AC_ARG_WITH([headers], |
77e8bddf AS |
87 | AC_HELP_STRING([--with-headers=PATH], |
88 | [location of system headers to use | |
6b7f6183 RM |
89 | (for example /usr/src/linux/include) |
90 | @<:@default=compiler default@:>@]), | |
91 | [sysheaders=$withval], | |
92 | [sysheaders='']) | |
dbe7a0f5 | 93 | |
f781ef40 RM |
94 | AC_SUBST(use_default_link) |
95 | AC_ARG_WITH([default-link], | |
96 | AC_HELP_STRING([--with-default-link], | |
fd5e21c7 | 97 | [do not use explicit linker scripts]), |
f781ef40 | 98 | [use_default_link=$withval], |
fd5e21c7 | 99 | [use_default_link=default]) |
f781ef40 | 100 | |
6b7f6183 | 101 | AC_ARG_ENABLE([sanity-checks], |
77e8bddf AS |
102 | AC_HELP_STRING([--disable-sanity-checks], |
103 | [really do not use threads (should not be used except in special situations) @<:@default=yes@:>@]), | |
6b7f6183 RM |
104 | [enable_sanity=$enableval], |
105 | [enable_sanity=yes]) | |
a18f587d | 106 | |
7dbde9db RM |
107 | AC_SUBST(enable_check_abi) |
108 | AC_ARG_ENABLE([check-abi], | |
fd54683c RM |
109 | AC_HELP_STRING([--enable-check-abi], |
110 | [do "make check-abi" in "make check" (no/warn/yes) | |
111 | @<:@default=no@:>@]), | |
7dbde9db | 112 | [enable_check_abi=$enableval], |
fd54683c | 113 | [enable_check_abi=no]) |
7dbde9db | 114 | |
650425ce UD |
115 | dnl Arguments to enable or disable building the static, shared, profiled, |
116 | dnl and -fomit-frame-pointer libraries. | |
b38bb8ca UD |
117 | dnl I've disabled this for now since we cannot build glibc without static |
118 | dnl libraries built in the moment. | |
6b7f6183 RM |
119 | dnl AC_ARG_ENABLE([static], |
120 | dnl AC_HELP_STRING([--enable-static], | |
121 | dnl [build static library @<:@default=yes@:>@]), | |
122 | dnl [static=$enableval], | |
123 | dnl [static=yes]) | |
5c2a0669 | 124 | static=yes |
6b7f6183 | 125 | AC_ARG_ENABLE([shared], |
77e8bddf | 126 | AC_HELP_STRING([--enable-shared], |
a0da5fe1 | 127 | [build shared library @<:@default=yes if GNU ld@:>@]), |
6b7f6183 | 128 | [shared=$enableval], |
a0da5fe1 | 129 | [shared=yes]) |
6b7f6183 | 130 | AC_ARG_ENABLE([profile], |
77e8bddf AS |
131 | AC_HELP_STRING([--enable-profile], |
132 | [build profiled library @<:@default=no@:>@]), | |
6b7f6183 | 133 | [profile=$enableval], |
11bf311e | 134 | [profile=no]) |
6b7f6183 | 135 | AC_ARG_ENABLE([versioning], |
77e8bddf AS |
136 | AC_HELP_STRING([--disable-versioning], |
137 | [do not include versioning information in the library objects @<:@default=yes if supported@:>@]), | |
6b7f6183 RM |
138 | [enable_versioning=$enableval], |
139 | [enable_versioning=yes]) | |
140 | ||
141 | AC_ARG_ENABLE([oldest-abi], | |
77e8bddf AS |
142 | AC_HELP_STRING([--enable-oldest-abi=ABI], |
143 | [configure the oldest ABI supported @<:@e.g. 2.2@:>@ @<:@default=glibc default@:>@]), | |
6b7f6183 RM |
144 | [oldest_abi=$enableval], |
145 | [oldest_abi=no]) | |
62ab42d6 UD |
146 | if test "$oldest_abi" = yes || test "$oldest_abi" = no; then |
147 | oldest_abi=default | |
148 | else | |
149 | AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi") | |
150 | fi | |
151 | AC_SUBST(oldest_abi) | |
152 | ||
35f1e827 UD |
153 | AC_ARG_ENABLE([stackguard-randomization], |
154 | AC_HELP_STRING([--enable-stackguard-randomization], | |
155 | [initialize __stack_chk_guard canary with a random number at program start]), | |
156 | [enable_stackguard_randomize=$enableval], | |
157 | [enable_stackguard_randomize=no]) | |
158 | if test "$enable_stackguard_randomize" = yes; then | |
159 | AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE) | |
160 | fi | |
161 | ||
6b3a2224 | 162 | dnl Generic infrastructure for drop-in additions to libc. |
6b7f6183 | 163 | AC_ARG_ENABLE([add-ons], |
77e8bddf AS |
164 | AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], |
165 | [configure and build add-ons in DIR1,DIR2,... | |
166 | search for add-ons if no parameter given]), | |
e0a3ed4f | 167 | , [enable_add_ons=yes]) |
61952351 | 168 | |
6b7f6183 | 169 | AC_ARG_ENABLE([hidden-plt], |
77e8bddf AS |
170 | AC_HELP_STRING([--disable-hidden-plt], |
171 | [do not hide internal function calls to avoid PLT]), | |
6b7f6183 RM |
172 | [hidden=$enableval], |
173 | [hidden=yes]) | |
749a9a4f RM |
174 | if test "x$hidden" = xno; then |
175 | AC_DEFINE(NO_HIDDEN) | |
176 | fi | |
177 | ||
4df8c11d UD |
178 | AC_ARG_ENABLE([bind-now], |
179 | AC_HELP_STRING([--enable-bind-now], | |
180 | [disable lazy relocations in DSOs]), | |
181 | [bindnow=$enableval], | |
182 | [bindnow=no]) | |
183 | AC_SUBST(bindnow) | |
184 | ||
5107cf1d UD |
185 | dnl On some platforms we cannot use dynamic loading. We must provide |
186 | dnl static NSS modules. | |
6b7f6183 | 187 | AC_ARG_ENABLE([static-nss], |
77e8bddf AS |
188 | AC_HELP_STRING([--enable-static-nss], |
189 | [build static NSS modules @<:@default=no@:>@]), | |
6b7f6183 RM |
190 | [static_nss=$enableval], |
191 | [static_nss=no]) | |
834cef7c UD |
192 | dnl Enable static NSS also if we build no shared objects. |
193 | if test x"$static_nss" = xyes || test x"$shared" = xno; then | |
3172f58f | 194 | static_nss=yes |
5107cf1d UD |
195 | AC_DEFINE(DO_STATIC_NSS) |
196 | fi | |
197 | ||
6b7f6183 | 198 | AC_ARG_ENABLE([force-install], |
77e8bddf AS |
199 | AC_HELP_STRING([--disable-force-install], |
200 | [don't force installation of files from this package, even if they are older than the installed files]), | |
6b7f6183 RM |
201 | [force_install=$enableval], |
202 | [force_install=yes]) | |
73237de3 UD |
203 | AC_SUBST(force_install) |
204 | ||
958f238f UD |
205 | dnl On some platforms we allow dropping compatibility with all kernel |
206 | dnl versions. | |
6b7f6183 | 207 | AC_ARG_ENABLE([kernel], |
77e8bddf AS |
208 | AC_HELP_STRING([--enable-kernel=VERSION], |
209 | [compile for compatibility with kernel not older than VERSION]), | |
6b7f6183 RM |
210 | [minimum_kernel=$enableval], |
211 | []) | |
86cfe82d UD |
212 | dnl Prevent unreasonable values. |
213 | if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then | |
214 | # Better nothing than this. | |
215 | minimum_kernel="" | |
269e369f UD |
216 | else |
217 | if test "$minimum_kernel" = current; then | |
218 | minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel= | |
219 | fi | |
86cfe82d | 220 | fi |
958f238f | 221 | |
6cc7d725 UD |
222 | dnl For the development we sometimes want gcc to issue even more warnings. |
223 | dnl This is not the default since many of the extra warnings are not | |
224 | dnl appropriate. | |
6b7f6183 RM |
225 | AC_ARG_ENABLE([all-warnings], |
226 | AC_HELP_STRING([--enable-all-warnings], | |
77e8bddf | 227 | [enable all useful warnings gcc can issue]), |
6b7f6183 RM |
228 | [all_warnings=$enableval], |
229 | []) | |
6cc7d725 UD |
230 | AC_SUBST(all_warnings) |
231 | ||
425ce2ed UD |
232 | AC_ARG_ENABLE([multi-arch], |
233 | AC_HELP_STRING([--enable-multi-arch], | |
234 | [enable single DSO with optimizations for multiple architectures]), | |
235 | [multi_arch=$enableval], | |
6f89d2f3 | 236 | [multi_arch=default]) |
425ce2ed | 237 | |
ff886b82 UD |
238 | AC_ARG_ENABLE([nss-crypt], |
239 | AC_HELP_STRING([--enable-nss-crypt], | |
240 | [enable libcrypt to use nss]), | |
241 | [nss_crypt=$enableval], | |
242 | [nss_crypt=no]) | |
243 | if test x$nss_crypt = xyes; then | |
244 | nss_includes=-I$(nss-config --includedir 2>/dev/null) | |
245 | if test $? -ne 0; then | |
246 | AC_MSG_ERROR([cannot find include directory with nss-config]) | |
247 | fi | |
248 | old_CFLAGS="$CFLAGS" | |
249 | CFLAGS="$CFLAGS $nss_includes" | |
b68e08db | 250 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; |
ff886b82 UD |
251 | #include <hasht.h> |
252 | #include <nsslowhash.h> | |
b68e08db | 253 | void f (void) { NSSLOW_Init (); }])], |
ff886b82 UD |
254 | libc_cv_nss_crypt=yes, |
255 | AC_MSG_ERROR([ | |
256 | cannot find NSS headers with lowlevel hash function interfaces])) | |
257 | old_LIBS="$LIBS" | |
258 | LIBS="$LIBS -lfreebl3" | |
259 | AC_LINK_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; | |
260 | #include <hasht.h> | |
261 | #include <nsslowhash.h>], | |
262 | [NSSLOW_Init();])], | |
263 | libc_cv_nss_crypt=yes, | |
264 | AC_MSG_ERROR([ | |
265 | cannot link program using lowlevel NSS hash functions])) | |
266 | CFLAGS="$old_CFLAGS" | |
267 | LIBS="$old_LIBS" | |
268 | else | |
269 | libc_cv_nss_crypt=no | |
270 | fi | |
271 | AC_SUBST(libc_cv_nss_crypt) | |
272 | ||
8a523922 UD |
273 | # The way shlib-versions is used to generate soversions.mk uses a |
274 | # fairly simplistic model for name recognition that can't distinguish | |
275 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
276 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
277 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
278 | case "$host_os" in | |
279 | linux*) | |
280 | ;; | |
281 | gnu*) | |
282 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
283 | ;; | |
284 | esac | |
285 | ||
28f540f4 RM |
286 | # We keep the original values in `$config_*' and never modify them, so we |
287 | # can write them unchanged into config.make. Everything else uses | |
288 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
289 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
290 | ||
2f64b655 UD |
291 | # Don't allow vendor == "unknown" |
292 | test "$config_vendor" = unknown && config_vendor= | |
293 | config_os="`echo $config_os | sed 's/^unknown-//'`" | |
294 | ||
a2fe9c76 | 295 | # Some configurations imply other options. |
0269750c | 296 | elf=yes |
a2fe9c76 | 297 | |
8f73811b RM |
298 | # The configure fragment of an add-on port can modify these to supplement |
299 | # or override the table in the case statement below. No fragment should | |
300 | # ever change the config_* variables, however. | |
28f540f4 RM |
301 | machine=$config_machine |
302 | vendor=$config_vendor | |
303 | os=$config_os | |
b22d21b3 | 304 | base_os='' |
28f540f4 | 305 | |
a808d541 UD |
306 | # config.guess on some IBM machines says `rs6000' instead of `powerpc'. |
307 | # Unify this here. | |
308 | if test "$machine" = rs6000; then | |
309 | machine="powerpc" | |
310 | fi | |
311 | ||
f4b07664 RM |
312 | # Braindead PowerPC box with absolutely no FPU. |
313 | case "$machine-$host_os" in | |
314 | powerpc*-*soft) | |
315 | with_fp=no | |
316 | ;; | |
317 | esac | |
318 | ||
2ceaa76a RM |
319 | submachine= |
320 | AC_ARG_WITH([cpu], | |
321 | AS_HELP_STRING([--with-cpu=CPU], [select code for CPU variant]), | |
322 | [dnl | |
323 | case "$withval" in | |
324 | yes|'') AC_MSG_ERROR([--with-cpu requires an argument]) ;; | |
325 | no) ;; | |
326 | *) submachine="$withval" ;; | |
327 | esac | |
328 | ]) | |
329 | ||
e0a3ed4f | 330 | # An add-on can set this when it wants to disable the sanity check below. |
8f73811b RM |
331 | libc_config_ok=no |
332 | ||
333 | dnl Having this here, though empty, makes sure that if add-ons' fragments | |
334 | dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then | |
335 | dnl our AC_OUTPUT will actually use it. | |
336 | AC_CONFIG_SUBDIRS() | |
337 | ||
e0a3ed4f RM |
338 | case "$enable_add_ons" in |
339 | ''|no) add_ons= ;; | |
340 | yes|'*') | |
341 | add_ons=`cd $srcdir && ls -d 2> /dev/null */configure */sysdeps | | |
342 | sed 's@/[[^/]]*$@@' | sort | uniq` | |
343 | add_ons_automatic=yes | |
344 | ;; | |
345 | *) add_ons=`echo "$enable_add_ons" | sed 's/,/ /g'` | |
346 | add_ons_automatic=no ;; | |
347 | esac | |
348 | ||
349 | configured_add_ons= | |
8f73811b RM |
350 | add_ons_sfx= |
351 | add_ons_pfx= | |
352 | if test x"$add_ons" != x; then | |
353 | for f in $add_ons; do | |
354 | # Some sanity checks | |
355 | case "$f" in | |
356 | crypt) | |
357 | AC_MSG_ERROR([ | |
358 | *** It seems that you're using an old \`crypt' add-on. crypt is now | |
359 | *** part of glibc and using the old add-on will not work with this | |
360 | *** release. Start again with fresh sources and without the old | |
361 | *** \`crypt' add-on.]) | |
362 | ;; | |
363 | localedata) | |
364 | AC_MSG_ERROR([ | |
365 | *** It seems that you're using an old \`localedata' add-on. localedata | |
366 | *** is now part of glibc and using the old add-on will not work with | |
367 | *** this release. Start again with fresh sources and without the old | |
368 | *** \`localedata' add-on.]) | |
369 | ;; | |
370 | esac | |
8f73811b RM |
371 | done |
372 | ||
9382fcee | 373 | # Now source each add-on's configure fragment. |
c80e931a RM |
374 | # The fragments can use $srcdir/$libc_add_on to find themselves, |
375 | # and test $add_ons_automatic to see if they were explicitly requested. | |
376 | # A fragment can clear (or even change) $libc_add_on to affect | |
377 | # whether it goes into the list to be actually used in the build. | |
378 | use_add_ons= | |
9382fcee | 379 | for libc_add_on in $add_ons; do |
e0a3ed4f RM |
380 | # Test whether such a directory really exists. |
381 | # It can be absolute, or relative to $srcdir, or relative to the build dir. | |
382 | case "$libc_add_on" in | |
383 | /*) | |
384 | libc_add_on_srcdir=$libc_add_on | |
385 | ;; | |
386 | *) | |
387 | test -d "$srcdir/$libc_add_on" || { | |
77e8bddf | 388 | if test -d "$libc_add_on"; then |
e0a3ed4f RM |
389 | libc_add_on="`pwd`/$libc_add_on" |
390 | else | |
391 | AC_MSG_ERROR(add-on directory \"$libc_add_on\" does not exist) | |
392 | fi | |
393 | } | |
394 | libc_add_on_srcdir=$srcdir/$libc_add_on | |
395 | ;; | |
396 | esac | |
397 | ||
398 | libc_add_on_frag=$libc_add_on_srcdir/configure | |
399 | libc_add_on_canonical= | |
7967983f | 400 | libc_add_on_config_subdirs= |
e0a3ed4f RM |
401 | if test -r "$libc_add_on_frag"; then |
402 | AC_MSG_NOTICE(running configure fragment for add-on $libc_add_on) | |
403 | libc_add_on_canonical=unknown | |
404 | libc_add_on_subdirs= | |
405 | . "$libc_add_on_frag" | |
406 | test -z "$libc_add_on" || { | |
77e8bddf | 407 | configured_add_ons="$configured_add_ons $libc_add_on" |
e0a3ed4f RM |
408 | if test "x$libc_add_on_canonical" = xunknown; then |
409 | AC_MSG_ERROR(fragment must set \$libc_add_on_canonical) | |
410 | fi | |
411 | for d in $libc_add_on_subdirs; do | |
412 | case "$libc_add_on" in | |
413 | /*) subdir_srcdir="$libc_add_on" ;; | |
414 | *) subdir_srcdir="\$(..)$libc_add_on" ;; | |
415 | esac | |
416 | case "$d" in | |
417 | .) | |
418 | d="${libc_add_on_canonical:-$libc_add_on}" | |
419 | ;; | |
420 | /*) | |
421 | subdir_srcdir="$d" | |
422 | ;; | |
423 | *) | |
424 | subdir_srcdir="$subdir_srcdir/$d" | |
425 | ;; | |
426 | esac | |
427 | d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'` | |
428 | add_on_subdirs="$add_on_subdirs $d" | |
429 | test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars | |
430 | $d-srcdir = $subdir_srcdir" | |
431 | done | |
7967983f RM |
432 | for d in $libc_add_on_config_subdirs; do |
433 | case "$d" in | |
434 | /*) AC_MSG_ERROR(dnl | |
435 | fragment uses absolute path in \$libc_add_on_config_subdirs) ;; | |
436 | esac | |
437 | if test ! -d "$libc_add_on_srcdir/$d"; then | |
438 | AC_MSG_ERROR(fragment wants to configure missing directory $d) | |
439 | fi | |
440 | case "$libc_add_on" in | |
441 | /*) AC_MSG_ERROR(dnl | |
442 | relative path required for add-on using \$libc_add_on_config_subdirs) ;; | |
443 | esac | |
444 | subdirs="$subdirs $libc_add_on/$d" | |
445 | done | |
e0a3ed4f | 446 | } |
8f73811b | 447 | fi |
619f9448 | 448 | if test -n "$libc_add_on"; then |
e0a3ed4f RM |
449 | if frags=`ls -d $libc_add_on_srcdir/sysdeps/*/preconfigure 2> /dev/null` |
450 | then | |
451 | AC_MSG_CHECKING(add-on $libc_add_on for preconfigure fragments) | |
452 | for frag in $frags; do | |
453 | name=`echo "$frag" | sed 's@/[[^/]]*$@@;s@^.*/@@'` | |
454 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD | |
455 | . "$frag" | |
456 | done | |
457 | AC_MSG_RESULT() | |
458 | fi | |
619f9448 RM |
459 | use_add_ons="$use_add_ons $libc_add_on" |
460 | add_ons_pfx="$add_ons_pfx $libc_add_on/" | |
e0a3ed4f RM |
461 | test -z "$libc_add_on_canonical" || |
462 | add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical" | |
619f9448 | 463 | fi |
8f73811b | 464 | done |
c80e931a RM |
465 | # Use echo to strip excess whitespace. |
466 | add_ons="`echo $use_add_ons`" | |
8f73811b RM |
467 | fi |
468 | AC_SUBST(add_ons) | |
e0a3ed4f | 469 | AC_SUBST(add_on_subdirs) |
8f73811b RM |
470 | |
471 | ||
bdc8eb03 UD |
472 | ### |
473 | ### I put this here to prevent those annoying emails from people who cannot | |
474 | ### read and try to compile glibc on unsupported platforms. --drepper | |
475 | ### | |
476 | ### By using the undocumented --enable-hacker-mode option for configure | |
477 | ### one can skip this test to make the configuration not fail for unsupported | |
478 | ### platforms. | |
479 | ### | |
8f73811b | 480 | if test -z "$enable_hacker_mode" && test x"$libc_config_ok" != xyes; then |
bdc8eb03 | 481 | case "$machine-$host_os" in |
0269750c | 482 | *-linux* | *-gnu* | arm*-none*) |
bdc8eb03 UD |
483 | ;; |
484 | *) | |
485 | echo "*** The GNU C library is currently not available for this platform." | |
486 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
487 | echo "*** might never happen. So, if you have interest to see glibc on" | |
488 | echo "*** this platform visit" | |
489 | echo "*** http://www.gnu.org/software/libc/porting.html" | |
490 | echo "*** and join the group of porters" | |
491 | exit 1 | |
492 | ;; | |
493 | esac | |
494 | fi | |
495 | ||
28f540f4 RM |
496 | dnl We need to use [ and ] for other purposes for a while now. |
497 | changequote(,)dnl | |
498 | # Expand the configuration machine name into a subdirectory by architecture | |
8f73811b RM |
499 | # type and particular chip. If an add-on configure fragment already set |
500 | # base_machine, we don't change it. | |
501 | test -n "$base_machine" || case "$machine" in | |
0b755dc4 | 502 | i[34567]86) base_machine=i386 machine=i386/$machine ;; |
92b27c74 UD |
503 | powerpc) base_machine=powerpc machine=powerpc/powerpc32 ;; |
504 | powerpc64) base_machine=powerpc machine=powerpc/powerpc64 ;; | |
136d4332 UD |
505 | s390) base_machine=s390 machine=s390/s390-32 ;; |
506 | s390x) base_machine=s390 machine=s390/s390-64 ;; | |
88615235 UD |
507 | sh3*) base_machine=sh machine=sh/sh3 ;; |
508 | sh4*) base_machine=sh machine=sh/sh4 ;; | |
ca34d7a7 UD |
509 | sparc | sparcv[67]) |
510 | base_machine=sparc machine=sparc/sparc32 ;; | |
511 | sparcv8 | supersparc | hypersparc) | |
512 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
ae6b8730 RH |
513 | sparcv8plus | sparcv8plusa | sparcv9) |
514 | base_machine=sparc machine=sparc/sparc32/sparcv9 ;; | |
bb769ab6 | 515 | sparcv8plusb | sparcv9b) |
10c6e709 | 516 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9b ;; |
2d73656b RM |
517 | sparcv9v) |
518 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v ;; | |
46ae8850 JJ |
519 | sparcv9v2) |
520 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v2 ;; | |
b1ecbed2 | 521 | sparc64) |
ca34d7a7 | 522 | base_machine=sparc machine=sparc/sparc64 ;; |
b1ecbed2 | 523 | sparc64b) |
bb769ab6 | 524 | base_machine=sparc machine=sparc/sparc64/sparcv9b ;; |
2d73656b RM |
525 | sparc64v) |
526 | base_machine=sparc machine=sparc/sparc64/sparcv9v ;; | |
46ae8850 JJ |
527 | sparc64v2) |
528 | base_machine=sparc machine=sparc/sparc64/sparcv9v2 ;; | |
3a2832a0 | 529 | *) base_machine=$machine ;; |
28f540f4 | 530 | esac |
f0523145 RM |
531 | changequote([,])dnl |
532 | AC_SUBST(base_machine) | |
28f540f4 | 533 | |
dfd2257a UD |
534 | if test "$base_machine" = "i386"; then |
535 | AC_DEFINE(USE_REGPARMS) | |
536 | fi | |
537 | ||
84b9230c MF |
538 | # For the multi-arch option we need support in the assembler. |
539 | AC_CACHE_CHECK([for assembler gnu_indirect_function symbol type support], | |
77e8bddf | 540 | libc_cv_asm_gnu_indirect_function, [dnl |
84b9230c MF |
541 | cat > conftest.s <<EOF |
542 | .type foo,%gnu_indirect_function | |
543 | EOF | |
544 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; | |
545 | then | |
546 | libc_cv_asm_gnu_indirect_function=yes | |
547 | else | |
548 | libc_cv_asm_gnu_indirect_function=no | |
549 | fi | |
550 | rm -f conftest*]) | |
551 | ||
552 | AC_MSG_CHECKING(whether .text pseudo-op must be used) | |
553 | AC_CACHE_VAL(libc_cv_dot_text, [dnl | |
554 | cat > conftest.s <<EOF | |
555 | .text | |
556 | EOF | |
557 | libc_cv_dot_text= | |
558 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
559 | libc_cv_dot_text=.text | |
560 | fi | |
561 | rm -f conftest*]) | |
562 | if test -z "$libc_cv_dot_text"; then | |
563 | AC_MSG_RESULT(no) | |
564 | else | |
565 | AC_MSG_RESULT(yes) | |
566 | fi | |
567 | ||
568 | AC_CACHE_CHECK(for assembler global-symbol directive, | |
569 | libc_cv_asm_global_directive, [dnl | |
570 | libc_cv_asm_global_directive=UNKNOWN | |
571 | for ac_globl in .globl .global .EXPORT; do | |
572 | cat > conftest.s <<EOF | |
573 | ${libc_cv_dot_text} | |
574 | ${ac_globl} foo | |
575 | foo: | |
576 | EOF | |
577 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
578 | libc_cv_asm_global_directive=${ac_globl} | |
579 | fi | |
580 | rm -f conftest* | |
581 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
582 | done]) | |
583 | if test $libc_cv_asm_global_directive = UNKNOWN; then | |
584 | AC_MSG_ERROR(cannot determine asm global directive) | |
585 | else | |
586 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
587 | fi | |
588 | ||
589 | AC_CACHE_CHECK(for assembler .type directive prefix, | |
590 | libc_cv_asm_type_prefix, [dnl | |
591 | libc_cv_asm_type_prefix=no | |
592 | for ac_try_prefix in '@' '%' '#'; do | |
593 | cat > conftest.s <<EOF | |
594 | ${libc_cv_dot_text} | |
595 | ${libc_cv_asm_global_directive} foo | |
596 | .type foo, ${ac_try_prefix}object | |
597 | .size foo, 1 | |
598 | foo: | |
599 | .byte 1 | |
600 | EOF | |
601 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
602 | libc_cv_asm_type_prefix=${ac_try_prefix} | |
603 | fi | |
604 | rm -f conftest* | |
605 | test "x$libc_cv_asm_type_prefix" != xno && break | |
606 | done]) | |
607 | if test "x$libc_cv_asm_type_prefix" != xno; then | |
608 | AC_DEFINE_UNQUOTED(ASM_TYPE_DIRECTIVE_PREFIX, ${libc_cv_asm_type_prefix}) | |
609 | fi | |
610 | ||
611 | if test x"$libc_cv_asm_gnu_indirect_function" != xyes -a x"$libc_cv_asm_type_prefix" = xno; then | |
612 | if test x"$multi_arch" = xyes; then | |
613 | AC_MSG_ERROR([--enable-multi-arch support requires assembler and linker support]) | |
614 | else | |
615 | multi_arch=no | |
616 | fi | |
617 | fi | |
618 | if test x"$multi_arch" != xno; then | |
619 | multi_arch_d=/multiarch | |
620 | fi | |
621 | ||
f0523145 | 622 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 623 | # This can take a while to compute. |
f0523145 | 624 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 625 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
626 | dnl We need to use [ and ] for other purposes for a while now. |
627 | changequote(,)dnl | |
28f540f4 RM |
628 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
629 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
630 | ||
b22d21b3 | 631 | test "x$base_os" != x || case "$os" in |
28f540f4 RM |
632 | gnu*) |
633 | base_os=mach/hurd ;; | |
883bc19b | 634 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 635 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 636 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 637 | base_os=unix/bsd ;; |
d586354e | 638 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 639 | base_os=unix/sysv ;; |
f802accb UD |
640 | irix6*) |
641 | base_os=unix/sysv/irix6/$os ;; | |
d586354e | 642 | solaris[2-9]*) |
28f540f4 RM |
643 | base_os=unix/sysv/sysv4 ;; |
644 | none) | |
645 | base_os=standalone ;; | |
28f540f4 RM |
646 | esac |
647 | ||
648 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
649 | tail=$os | |
650 | ostry=$os | |
651 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
652 | ostry="$ostry /$o" | |
653 | tail=$o | |
75914335 | 654 | done |
28f540f4 RM |
655 | o=`echo $tail | sed 's/[0-9]*$//'` |
656 | if test $o != $tail; then | |
657 | ostry="$ostry /$o" | |
658 | fi | |
ec4b0518 UD |
659 | # For linux-gnu, try linux-gnu, then linux. |
660 | o=`echo $tail | sed 's/-.*$//'` | |
661 | if test $o != $tail; then | |
662 | ostry="$ostry /$o" | |
663 | fi | |
28f540f4 RM |
664 | |
665 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
666 | base= | |
667 | tail=$base_os | |
668 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
669 | set $b | |
670 | base="$base /$1" | |
671 | tail="$2" | |
672 | done | |
673 | ||
ae6b8730 | 674 | # For sparc/sparc32, try sparc/sparc32 and then sparc. |
28f540f4 | 675 | mach= |
2ceaa76a | 676 | tail=$machine${submachine:+/$submachine} |
28f540f4 RM |
677 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do |
678 | set $m | |
10ceac89 RM |
679 | # Prepend the machine's FPU directory unless --without-fp. |
680 | if test "$with_fp" = yes; then | |
681 | mach="$mach /$1/fpu" | |
f4b07664 RM |
682 | else |
683 | mach="$mach /$1/nofpu" | |
82d00cab | 684 | fi |
28f540f4 RM |
685 | mach="$mach /$1" |
686 | tail="$2" | |
687 | done | |
688 | ||
689 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
690 | changequote([,])dnl | |
691 | ||
692 | # Find what sysdep directories exist. | |
e0a3ed4f | 693 | sysnames_add_ons= |
28f540f4 | 694 | sysnames= |
4b69abad RM |
695 | for b in $base ''; do |
696 | for m0 in $mach ''; do | |
697 | for v in /$vendor ''; do | |
698 | test "$v" = / && continue | |
699 | for o in /$ostry ''; do | |
700 | test "$o" = / && continue | |
425ce2ed | 701 | for m in $multi_arch_d $mach ''; do |
4b69abad | 702 | for d in $add_ons_pfx ''; do |
8f73811b | 703 | for a in $add_ons_sfx ''; do |
e0a3ed4f | 704 | if test -n "$m0$m0sub$b$v$o$m$msub"; then |
77e8bddf AS |
705 | try_srcdir="${srcdir}/" |
706 | case "$d" in | |
e0a3ed4f RM |
707 | /*) try_srcdir= ;; |
708 | esac | |
4b69abad | 709 | try="${d}sysdeps$m0$m0sub$b$v$o$m$msub$a" |
8f73811b RM |
710 | test -n "$enable_debug_configure" && |
711 | echo "$0 [DEBUG]: try $try" >&2 | |
e0a3ed4f | 712 | if test -d "$try_srcdir$try"; then |
8f73811b RM |
713 | sysnames="$sysnames $try" |
714 | { test -n "$o" || test -n "$b"; } && os_used=t | |
715 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
4b69abad RM |
716 | case x${m0:-$m} in |
717 | x*/$submachine) submachine_used=t ;; | |
718 | esac | |
e0a3ed4f RM |
719 | if test -n "$d"; then |
720 | case "$sysnames_add_ons" in | |
721 | *" $d "*) ;; | |
722 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
723 | esac | |
724 | fi | |
8f73811b | 725 | fi |
57ba7bb4 | 726 | fi |
8f73811b | 727 | done |
57ba7bb4 | 728 | done |
28f540f4 RM |
729 | done |
730 | done | |
731 | done | |
732 | done | |
4b69abad | 733 | done |
28f540f4 | 734 | |
6f89d2f3 L |
735 | # If the assembler supports gnu_indirect_function symbol type and the |
736 | # architecture supports multi-arch, we enable multi-arch by default. | |
84b9230c MF |
737 | case $sysnames_add_ons$sysnames in |
738 | *"$multi_arch_d"*) | |
739 | ;; | |
740 | *) | |
77e8bddf | 741 | test x"$multi_arch" = xdefault && multi_arch=no |
84b9230c MF |
742 | ;; |
743 | esac | |
744 | if test x"$multi_arch" != xno; then | |
6f89d2f3 L |
745 | AC_DEFINE(USE_MULTIARCH) |
746 | fi | |
747 | AC_SUBST(multi_arch) | |
748 | ||
28f540f4 RM |
749 | if test -z "$os_used" && test "$os" != none; then |
750 | AC_MSG_ERROR(Operating system $os is not supported.) | |
751 | fi | |
752 | if test -z "$machine_used" && test "$machine" != none; then | |
753 | AC_MSG_ERROR(The $machine is not supported.) | |
754 | fi | |
2ceaa76a RM |
755 | if test -z "$submachine_used" && test -n "$submachine"; then |
756 | AC_MSG_ERROR(The $submachine subspecies of $host_cpu is not supported.) | |
757 | fi | |
758 | AC_SUBST(submachine) | |
28f540f4 RM |
759 | |
760 | # We have now validated the configuration. | |
761 | ||
335aa320 | 762 | |
a0da5fe1 | 763 | # Look for an `elf' subdirectory of each machine directory. |
10ceac89 RM |
764 | # We prepend these rather than inserting them whereever the machine appears |
765 | # because things specified by the machine's ELF ABI should override | |
766 | # OS-specific things, and should always be the same for any OS on the | |
767 | # machine (otherwise what's the point of an ABI?). | |
a0da5fe1 UD |
768 | elf_dirs= |
769 | for d in $add_ons_pfx ''; do | |
770 | for m in $mach; do | |
771 | if test -d $srcdir/${d}sysdeps$m/elf; then | |
772 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" | |
773 | fi | |
28f540f4 | 774 | done |
a0da5fe1 UD |
775 | done |
776 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" | |
28f540f4 | 777 | |
335aa320 | 778 | |
28f540f4 RM |
779 | # Expand the list of system names into a full list of directories |
780 | # from each element's parent name and Implies file (if present). | |
781 | set $sysnames | |
e50ec9f9 | 782 | names= |
28f540f4 RM |
783 | while test $# -gt 0; do |
784 | name=$1 | |
785 | shift | |
786 | ||
e50ec9f9 | 787 | case " $names " in *" $name "*) |
f332db02 RM |
788 | # Already in the list. |
789 | continue | |
e50ec9f9 | 790 | esac |
f332db02 RM |
791 | |
792 | # Report each name as we discover it, so there is no long pause in output. | |
0b4ee387 | 793 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD |
f332db02 | 794 | |
57ba7bb4 UD |
795 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
796 | ||
797 | case $name in | |
798 | /*) xsrcdir= ;; | |
799 | *) xsrcdir=$srcdir/ ;; | |
800 | esac | |
801 | test -n "$enable_debug_configure" && | |
802 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
803 | ||
804 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 805 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
806 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
807 | implied= | |
808 | for x in $implied_candidate; do | |
636ccfc8 | 809 | found=no |
57ba7bb4 UD |
810 | if test -d $xsrcdir$name_base/$x; then |
811 | implied="$implied $name_base/$x"; | |
636ccfc8 UD |
812 | found=yes |
813 | fi | |
814 | for d in $add_ons_pfx ''; do | |
815 | try="${d}sysdeps/$x" | |
816 | case $d in | |
817 | /*) try_srcdir= ;; | |
818 | *) try_srcdir=$srcdir/ ;; | |
819 | esac | |
820 | test -n "$enable_debug_configure" && | |
821 | echo "[DEBUG]: $name implied $x try($d) {$try_srcdir}$try" >&2 | |
822 | if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; | |
823 | then | |
824 | implied="$implied $try" | |
825 | found=yes | |
e0a3ed4f RM |
826 | case "$sysnames_add_ons" in |
827 | *" $d "*) ;; | |
828 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
829 | esac | |
636ccfc8 UD |
830 | fi |
831 | done | |
832 | if test $found = no; then | |
77e8bddf | 833 | AC_MSG_WARN($name/Implies specifies nonexistent $x) |
57ba7bb4 | 834 | fi |
28f540f4 RM |
835 | done |
836 | else | |
837 | implied= | |
838 | fi | |
839 | ||
840 | # Add NAME to the list of names. | |
841 | names="$names $name" | |
842 | ||
843 | # Find the parent of NAME, using the empty string if it has none. | |
844 | changequote(,)dnl | |
57ba7bb4 | 845 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
846 | changequote([,])dnl |
847 | ||
848 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
849 | # the list of names to be processed (the argument list). We prepend the | |
850 | # implied names to the list and append the parent. We want implied | |
851 | # directories to come before further directories inferred from the | |
852 | # configuration components; this ensures that for sysv4, unix/common | |
853 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
854 | # after sysv4). | |
855 | sysnames="`echo $implied $* $parent`" | |
856 | test -n "$sysnames" && set $sysnames | |
857 | done | |
858 | ||
859 | # Add the default directories. | |
a0da5fe1 | 860 | default_sysnames="sysdeps/generic/elf sysdeps/generic" |
ecdc196c | 861 | sysnames="$names $default_sysnames" |
f332db02 RM |
862 | AC_SUBST(sysnames) |
863 | # The other names were emitted during the scan. | |
ecdc196c | 864 | AC_MSG_RESULT($default_sysnames) |
28f540f4 | 865 | |
e0a3ed4f RM |
866 | # Collect the list of add-ons that supply partial sysdeps trees. |
867 | sysdeps_add_ons= | |
868 | for add_on in $add_ons; do | |
869 | case "$add_on" in | |
870 | /*) xsrcdir= ;; | |
871 | *) xsrcdir="$srcdir/" ;; | |
872 | esac | |
873 | ||
874 | test -d "$xsrcdir$add_on/sysdeps" || { | |
875 | case "$configured_add_ons " in | |
876 | *" $add_on "*) ;; | |
877 | *|'') | |
878 | AC_MSG_ERROR(add-on $add_on has no configure fragment or sysdeps tree) | |
879 | ;; | |
880 | esac | |
881 | continue | |
882 | } | |
883 | ||
884 | sysdeps_add_ons="$sysdeps_add_ons $add_on" | |
885 | case "$sysnames_add_ons" in | |
886 | *" $add_on/ "*) ;; | |
887 | *|'') | |
888 | AC_MSG_WARN(add-on $add_on contributed no sysdeps directories) | |
889 | continue ;; | |
890 | esac | |
891 | ||
892 | found=no | |
893 | for d in $sysnames; do | |
894 | case "$d" in | |
895 | $add_on/sysdeps/*) ;; | |
896 | *) continue ;; | |
897 | esac | |
898 | (cd "$xsrcdir$d" && for f in *[[!~]]; do | |
899 | case "$f" in | |
900 | sys|bits) | |
901 | for ff in $f/*.h; do | |
902 | test -d "$ff" || { test -e "$ff" && exit 88; } | |
903 | done | |
904 | ;; | |
905 | *) | |
77e8bddf | 906 | test -d "$f" || { test -e "$f" && exit 88; } |
e0a3ed4f RM |
907 | ;; |
908 | esac | |
909 | done) | |
910 | if test $? -eq 88; then | |
911 | found=yes | |
912 | break | |
913 | fi | |
914 | done | |
915 | if test $found = no; then | |
916 | AC_MSG_WARN(add-on $add_on contributed no useful sysdeps directories) | |
917 | fi | |
918 | done | |
919 | AC_SUBST(sysdeps_add_ons) | |
920 | ||
f332db02 RM |
921 | |
922 | ### Locate tools. | |
28f540f4 | 923 | |
28f540f4 | 924 | AC_PROG_INSTALL |
2b80a372 | 925 | if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then |
28f540f4 | 926 | # The makefiles need to use a different form to find it in $srcdir. |
2b80a372 | 927 | INSTALL='\$(..)./scripts/install-sh -c' |
28f540f4 | 928 | fi |
0e3426bb | 929 | AC_PROG_LN_S |
ae828bc6 | 930 | |
4baa087a RM |
931 | LIBC_PROG_BINUTILS |
932 | AC_SUBST(MIG)dnl Needed by sysdeps/mach/configure.in | |
933 | ||
934 | # Accept binutils 2.13 or newer. | |
935 | AC_CHECK_PROG_VER(AS, $AS, --version, | |
936 | [GNU assembler.* \([0-9]*\.[0-9.]*\)], | |
f450806e | 937 | [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 |
938 | AC_CHECK_PROG_VER(LD, $LD, --version, |
939 | [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], | |
f450806e | 940 | [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 | 941 | |
63bda0c1 | 942 | # These programs are version sensitive. |
3a12e572 | 943 | AC_CHECK_TOOL_PREFIX |
4bca4c17 | 944 | AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, |
93aed667 | 945 | [version \([egcygnustpi-]*[0-9.]*\)], [3.4* | 4.[0-9]* ], |
90d1d40b | 946 | critic_missing="$critic_missing gcc") |
22e65f8f | 947 | AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, |
8fc1e2ca | 948 | [GNU Make[^0-9]*\([0-9][0-9.]*\)], |
6b4e880f | 949 | [3.79* | 3.[89]*], critic_missing="$critic_missing make") |
63bda0c1 | 950 | |
22e65f8f | 951 | AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, |
bdd421cc | 952 | [GNU gettext.* \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
953 | [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*], |
954 | MSGFMT=: aux_missing="$aux_missing msgfmt") | |
63bda0c1 | 955 | AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
8b7fb588 | 956 | [GNU texinfo.* \([0-9][0-9.]*\)], |
aefdff34 RM |
957 | [4.*], |
958 | MAKEINFO=: aux_missing="$aux_missing makeinfo") | |
d6a97a28 | 959 | AC_CHECK_PROG_VER(SED, sed, --version, |
aec103d3 | 960 | [GNU sed version \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
961 | [3.0[2-9]*|3.[1-9]*|[4-9]*], |
962 | SED=: aux_missing="$aux_missing sed") | |
63bda0c1 | 963 | |
d30cf5bb RM |
964 | AC_CHECK_TOOL(READELF, readelf, false) |
965 | ||
476e7d78 RM |
966 | AC_CHECK_PROGS(AUTOCONF, autoconf, no) |
967 | case "x$AUTOCONF" in | |
968 | xno|x|x:) AUTOCONF=no ;; | |
969 | *) | |
970 | AC_CACHE_CHECK(dnl | |
1400de2e | 971 | whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl |
476e7d78 RM |
972 | if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then |
973 | libc_cv_autoconf_works=yes | |
974 | else | |
975 | libc_cv_autoconf_works=no | |
976 | fi]) | |
977 | test $libc_cv_autoconf_works = yes || AUTOCONF=no | |
978 | ;; | |
979 | esac | |
92963737 | 980 | if test "x$AUTOCONF" = xno; then |
476e7d78 | 981 | aux_missing="$aux_missing autoconf" |
14519931 | 982 | fi |
1400de2e | 983 | |
32a448ed RM |
984 | test -n "$critic_missing" && AC_MSG_ERROR([ |
985 | *** These critical programs are missing or too old:$critic_missing | |
986 | *** Check the INSTALL file for required versions.]) | |
987 | ||
4bca4c17 | 988 | test -n "$aux_missing" && AC_MSG_WARN([ |
9c6fffc0 | 989 | *** These auxiliary programs are missing or incompatible versions:$aux_missing |
63bda0c1 UD |
990 | *** some features will be disabled. |
991 | *** Check the INSTALL file for required versions.]) | |
28f540f4 | 992 | |
dbe7a0f5 UD |
993 | # if using special system headers, find out the compiler's sekrit |
994 | # header directory and add that to the list. NOTE: Only does the right | |
995 | # thing on a system that doesn't need fixincludes. (Not presently a problem.) | |
996 | if test -n "$sysheaders"; then | |
67fbfa5c RM |
997 | SYSINCLUDES=-nostdinc |
998 | for d in include include-fixed; do | |
999 | i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" && | |
1000 | SYSINCLUDES="$SYSINCLUDES -isystem $i" | |
1001 | done | |
1002 | SYSINCLUDES="$SYSINCLUDES \ | |
3d6ce23a | 1003 | -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`" |
ef226fec | 1004 | if test -n "$CXX"; then |
7872cfb0 | 1005 | CXX_SYSINCLUDES= |
ef226fec RM |
1006 | cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` && |
1007 | cxxmachine=`$CXX -dumpmachine 2>&AS_MESSAGE_LOG_FD` && | |
7872cfb0 AS |
1008 | for d in include "$cxxmachine/include"; do |
1009 | i=../../../../$d/c++/$cxxversion | |
1010 | cxxheaders=`$CXX -print-file-name="$i"` && | |
1011 | test "x$cxxheaders" != x && test "x$i" != "x$cxxheaders" && | |
1012 | CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders \ | |
ef226fec | 1013 | -isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward" |
7872cfb0 | 1014 | done |
ef226fec | 1015 | fi |
dbe7a0f5 UD |
1016 | fi |
1017 | AC_SUBST(SYSINCLUDES) | |
ef226fec | 1018 | AC_SUBST(CXX_SYSINCLUDES) |
dbe7a0f5 | 1019 | |
3911660e UD |
1020 | # Test if LD_LIBRARY_PATH contains the notation for the current directory |
1021 | # since this would lead to problems installing/building glibc. | |
1022 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
1023 | # is true: | |
1024 | # - one of the terminals (":" and ";") is the first or last sign | |
1025 | # - two terminals occur directly after each other | |
1026 | # - the path contains an element with a dot in it | |
1027 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
1028 | changequote(,)dnl | |
1029 | case ${LD_LIBRARY_PATH} in | |
1030 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
b3a86ae1 | 1031 | ld_library_path_setting="contains current directory" |
3911660e UD |
1032 | ;; |
1033 | *) | |
1034 | ld_library_path_setting="ok" | |
1035 | ;; | |
1036 | esac | |
1037 | changequote([,])dnl | |
1038 | AC_MSG_RESULT($ld_library_path_setting) | |
1039 | if test "$ld_library_path_setting" != "ok"; then | |
63bda0c1 UD |
1040 | AC_MSG_ERROR([ |
1041 | *** LD_LIBRARY_PATH shouldn't contain the current directory when | |
1042 | *** building glibc. Please change the environment variable | |
1043 | *** and run configure again.]) | |
3911660e | 1044 | fi |
8e31cf7e | 1045 | |
74bd2300 UD |
1046 | AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl |
1047 | if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then | |
1048 | libc_cv_gcc_static_libgcc= | |
1049 | else | |
1050 | libc_cv_gcc_static_libgcc=-static-libgcc | |
1051 | fi]) | |
1052 | AC_SUBST(libc_cv_gcc_static_libgcc) | |
1053 | ||
26f56c1c UD |
1054 | AC_PATH_PROG(BASH_SHELL, bash, no) |
1055 | if test "$BASH_SHELL" != no && | |
1056 | $BASH_SHELL -c 'test "$BASH_VERSINFO" \ | |
6973fc01 | 1057 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
1058 | libc_cv_have_bash2=yes |
1059 | else | |
1060 | libc_cv_have_bash2=no | |
1061 | fi | |
1062 | AC_SUBST(libc_cv_have_bash2) | |
1063 | ||
5290baf0 | 1064 | dnl We need a ksh compatible shell for tzselect. |
26f56c1c | 1065 | if test "$BASH_SHELL" = no; then |
5290baf0 UD |
1066 | AC_PATH_PROG(KSH, ksh, no) |
1067 | if test "$KSH" = no; then | |
1068 | libc_cv_have_ksh=no | |
1069 | else | |
1070 | libc_cv_have_ksh=yes | |
1071 | fi | |
1072 | else | |
26f56c1c | 1073 | KSH="$BASH_SHELL" |
5290baf0 UD |
1074 | AC_SUBST(KSH) |
1075 | libc_cv_have_ksh=yes | |
1076 | fi | |
1077 | AC_SUBST(libc_cv_have_ksh) | |
1078 | ||
5aa8ff62 | 1079 | AC_PROG_AWK |
c0016081 | 1080 | AC_PATH_PROG(PERL, perl, no) |
2fd5d029 RM |
1081 | if test "$PERL" != no && |
1082 | (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then | |
1083 | PERL=no | |
ecb06196 | 1084 | fi |
2f512715 AS |
1085 | AC_PATH_PROG(INSTALL_INFO, install-info, no, |
1086 | $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) | |
2de00372 UD |
1087 | AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin) |
1088 | ||
b8dc6a10 | 1089 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
1090 | AC_TRY_COMPILE(dnl |
1091 | [#define __need_size_t | |
1092 | #define __need_wchar_t | |
1093 | #include <stddef.h> | |
1094 | #define __need_NULL | |
1095 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
1096 | #ifdef offsetof | |
1097 | #error stddef.h ignored __need_* | |
1098 | #endif | |
1099 | if (&size == NULL || &wchar == NULL) abort ();], | |
77e8bddf AS |
1100 | libc_cv_friendly_stddef=yes, |
1101 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
1102 | if test $libc_cv_friendly_stddef = yes; then |
1103 | config_vars="$config_vars | |
1104 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
1105 | fi | |
1106 | ||
b8dc6a10 RM |
1107 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
1108 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
1109 | cat > conftest.S <<EOF |
1110 | #include "confdefs.h" | |
1111 | /* Nothing whatsoever. */ | |
1112 | EOF | |
3217788f | 1113 | if AC_TRY_COMMAND(${CC-cc} $CPPFLAGS $ASFLAGS -c conftest.S 1>&AS_MESSAGE_LOG_FD); then |
28f540f4 RM |
1114 | libc_cv_need_minus_P=no |
1115 | else | |
1116 | libc_cv_need_minus_P=yes | |
1117 | fi | |
1118 | rm -f conftest*]) | |
28f540f4 RM |
1119 | if test $libc_cv_need_minus_P = yes; then |
1120 | config_vars="$config_vars | |
1121 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
1122 | fi | |
1123 | ||
b8dc6a10 | 1124 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 1125 | cat > conftest.s <<EOF |
2293395f | 1126 | ${libc_cv_dot_text} |
ae1025be | 1127 | foo: |
df2a0c93 | 1128 | .set glibc_conftest_frobozz,foo |
9a70fcab | 1129 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 1130 | EOF |
df2a0c93 RM |
1131 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
1132 | # (but it doesn't work), so we must do a linking check to be sure. | |
1133 | cat > conftest1.c <<\EOF | |
1134 | extern int glibc_conftest_frobozz; | |
640f0119 | 1135 | void _start() { glibc_conftest_frobozz = 1; } |
df2a0c93 RM |
1136 | EOF |
1137 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
640f0119 | 1138 | -nostartfiles -nostdlib \ |
0b4ee387 | 1139 | -o conftest conftest.s conftest1.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
e215c478 RM |
1140 | libc_cv_asm_set_directive=yes |
1141 | else | |
1142 | libc_cv_asm_set_directive=no | |
1143 | fi | |
65b3cbcb | 1144 | rm -f conftest*]) |
e215c478 RM |
1145 | if test $libc_cv_asm_set_directive = yes; then |
1146 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
1147 | fi | |
1148 | ||
415ac3df UD |
1149 | AC_CACHE_CHECK(for assembler gnu_unique_object symbol type, |
1150 | libc_cv_asm_unique_object, [dnl | |
1151 | cat > conftest.s <<EOF | |
1152 | ${libc_cv_dot_text} | |
1153 | _sym: | |
1154 | .type _sym, ${libc_cv_asm_type_prefix}gnu_unique_object | |
1155 | EOF | |
1156 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then | |
1157 | libc_cv_asm_unique_object=yes | |
1158 | else | |
1159 | libc_cv_asm_unique_object=no | |
1160 | fi | |
1161 | rm -f conftest*]) | |
1162 | if test $libc_cv_asm_unique_object = yes; then | |
1163 | AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT) | |
1164 | fi | |
1165 | ||
377a515b UD |
1166 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
1167 | [cat > conftest.s <<EOF | |
2293395f | 1168 | ${libc_cv_dot_text} |
4cca6b86 | 1169 | _sym: |
377a515b UD |
1170 | .symver _sym,sym@VERS |
1171 | EOF | |
3217788f | 1172 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
377a515b UD |
1173 | libc_cv_asm_symver_directive=yes |
1174 | else | |
1175 | libc_cv_asm_symver_directive=no | |
1176 | fi | |
1177 | rm -f conftest*]) | |
1178 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
1179 | if test $libc_cv_asm_symver_directive = yes; then | |
1180 | cat > conftest.s <<EOF | |
2293395f | 1181 | ${libc_cv_dot_text} |
4cca6b86 | 1182 | _sym: |
377a515b UD |
1183 | .symver _sym,sym@VERS |
1184 | EOF | |
1185 | cat > conftest.map <<EOF | |
f43ce637 | 1186 | VERS_1 { |
377a515b UD |
1187 | global: sym; |
1188 | }; | |
f43ce637 UD |
1189 | |
1190 | VERS_2 { | |
77e8bddf | 1191 | global: sym; |
f43ce637 | 1192 | } VERS_1; |
377a515b | 1193 | EOF |
3217788f RM |
1194 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
1195 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $LDFLAGS -shared | |
1196 | -o conftest.so conftest.o | |
1197 | -nostartfiles -nostdlib | |
1198 | -Wl,--version-script,conftest.map | |
c2f55635 | 1199 | 1>&AS_MESSAGE_LOG_FD]); |
377a515b UD |
1200 | then |
1201 | libc_cv_ld_version_script_option=yes | |
1202 | else | |
1203 | libc_cv_ld_version_script_option=no | |
1204 | fi | |
1205 | else | |
1206 | libc_cv_ld_version_script_option=no | |
1207 | fi | |
1208 | else | |
1209 | libc_cv_ld_version_script_option=no | |
1210 | fi | |
1211 | rm -f conftest*]) | |
7499a22a RM |
1212 | if test $shared != no && |
1213 | test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
1214 | test $libc_cv_ld_version_script_option = yes && |
1215 | test $enable_versioning = yes; then | |
377a515b UD |
1216 | VERSIONING=yes |
1217 | AC_DEFINE(DO_VERSIONING) | |
1218 | else | |
1219 | VERSIONING=no | |
1220 | fi | |
1221 | AC_SUBST(VERSIONING) | |
1222 | ||
a0da5fe1 | 1223 | if test $shared != no && test $VERSIONING = no; then |
f43ce637 | 1224 | echo "\ |
f4017d20 | 1225 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
1226 | *** versioning will introduce incompatibilities so that old binaries |
1227 | *** will not run anymore. | |
50304ef0 | 1228 | *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)." |
f43ce637 | 1229 | fi |
a0da5fe1 UD |
1230 | AC_CACHE_CHECK(for .previous assembler directive, |
1231 | libc_cv_asm_previous_directive, [dnl | |
1232 | cat > conftest.s <<EOF | |
fd26970f UD |
1233 | .section foo_section |
1234 | .previous | |
a0da5fe1 UD |
1235 | EOF |
1236 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1237 | libc_cv_asm_previous_directive=yes | |
1238 | else | |
1239 | libc_cv_asm_previous_directive=no | |
1240 | fi | |
1241 | rm -f conftest*]) | |
1242 | if test $libc_cv_asm_previous_directive = yes; then | |
1243 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
1244 | else | |
1245 | AC_CACHE_CHECK(for .popsection assembler directive, | |
1246 | libc_cv_asm_popsection_directive, [dnl | |
1247 | cat > conftest.s <<EOF | |
1248 | .pushsection foo_section | |
1249 | .popsection | |
fd26970f | 1250 | EOF |
3217788f | 1251 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
a0da5fe1 | 1252 | libc_cv_asm_popsection_directive=yes |
fd26970f | 1253 | else |
a0da5fe1 | 1254 | libc_cv_asm_popsection_directive=no |
fd26970f UD |
1255 | fi |
1256 | rm -f conftest*]) | |
a0da5fe1 UD |
1257 | if test $libc_cv_asm_popsection_directive = yes; then |
1258 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
fd26970f | 1259 | fi |
a0da5fe1 UD |
1260 | fi |
1261 | AC_CACHE_CHECK(for .protected and .hidden assembler directive, | |
1262 | libc_cv_asm_protected_directive, [dnl | |
1263 | cat > conftest.s <<EOF | |
2d499f55 UD |
1264 | .protected foo |
1265 | foo: | |
1266 | .hidden bar | |
1267 | bar: | |
1268 | EOF | |
a0da5fe1 UD |
1269 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
1270 | libc_cv_asm_protected_directive=yes | |
1271 | else | |
1272 | AC_MSG_ERROR(assembler support for symbol visibility is required) | |
1273 | fi | |
1274 | rm -f conftest*]) | |
0fb7851f | 1275 | |
a0da5fe1 UD |
1276 | if test $libc_cv_asm_protected_directive = yes; then |
1277 | AC_CACHE_CHECK(whether __attribute__((visibility())) is supported, | |
0d01dace UD |
1278 | libc_cv_visibility_attribute, |
1279 | [cat > conftest.c <<EOF | |
1280 | int foo __attribute__ ((visibility ("hidden"))) = 1; | |
1281 | int bar __attribute__ ((visibility ("protected"))) = 1; | |
1282 | EOF | |
1283 | libc_cv_visibility_attribute=no | |
61cea1c3 | 1284 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
0d01dace UD |
1285 | if grep '\.hidden.*foo' conftest.s >/dev/null; then |
1286 | if grep '\.protected.*bar' conftest.s >/dev/null; then | |
1287 | libc_cv_visibility_attribute=yes | |
1288 | fi | |
1289 | fi | |
1290 | fi | |
f7d82dc9 | 1291 | rm -f conftest.{c,s} |
0d01dace | 1292 | ]) |
a0da5fe1 UD |
1293 | if test $libc_cv_visibility_attribute != yes; then |
1294 | AC_MSG_ERROR(compiler support for visibility attribute is required) | |
0d01dace | 1295 | fi |
a0da5fe1 | 1296 | fi |
0d01dace | 1297 | |
a0da5fe1 UD |
1298 | if test $libc_cv_visibility_attribute = yes; then |
1299 | AC_CACHE_CHECK(for broken __attribute__((visibility())), | |
37ba7d66 UD |
1300 | libc_cv_broken_visibility_attribute, |
1301 | [cat > conftest.c <<EOF | |
1302 | int foo (int x); | |
1303 | int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden"))); | |
1304 | int bar (int x) { return x; } | |
1305 | EOF | |
1306 | libc_cv_broken_visibility_attribute=yes | |
f7d82dc9 | 1307 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
37ba7d66 UD |
1308 | changequote(,)dnl |
1309 | if grep '\.hidden[ _]foo' conftest.s >/dev/null; then | |
1310 | changequote([,])dnl | |
1311 | libc_cv_broken_visibility_attribute=no | |
1312 | fi | |
1313 | fi | |
1314 | rm -f conftest.c conftest.s | |
1315 | ]) | |
a0da5fe1 UD |
1316 | if test $libc_cv_broken_visibility_attribute = yes; then |
1317 | AC_MSG_ERROR(working compiler support for visibility attribute is required) | |
37ba7d66 | 1318 | fi |
a0da5fe1 | 1319 | fi |
37ba7d66 | 1320 | |
a0da5fe1 UD |
1321 | AC_CACHE_CHECK(for broken __attribute__((alias())), |
1322 | libc_cv_broken_alias_attribute, | |
1323 | [cat > conftest.c <<EOF | |
1324 | extern int foo (int x) __asm ("xyzzy"); | |
1325 | int bar (int x) { return x; } | |
1326 | extern __typeof (bar) foo __attribute ((weak, alias ("bar"))); | |
1327 | extern int dfoo; | |
1328 | extern __typeof (dfoo) dfoo __asm ("abccb"); | |
1329 | int dfoo = 1; | |
37ba7d66 | 1330 | EOF |
a0da5fe1 UD |
1331 | libc_cv_broken_alias_attribute=yes |
1332 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1333 | if grep 'xyzzy' conftest.s >/dev/null && | |
1334 | grep 'abccb' conftest.s >/dev/null; then | |
1335 | libc_cv_broken_alias_attribute=no | |
1336 | fi | |
1337 | fi | |
1338 | rm -f conftest.c conftest.s | |
1339 | ]) | |
1340 | if test $libc_cv_broken_alias_attribute = yes; then | |
1341 | AC_MSG_ERROR(working alias attribute support required) | |
1342 | fi | |
1343 | ||
1344 | if test $libc_cv_visibility_attribute = yes; then | |
1345 | AC_CACHE_CHECK(whether to put _rtld_local into .sdata section, | |
0d01dace UD |
1346 | libc_cv_have_sdata_section, |
1347 | [echo "int i;" > conftest.c | |
1348 | libc_cv_have_sdata_section=no | |
dbc92dc6 | 1349 | if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \ |
0d01dace UD |
1350 | | grep '\.sdata' >/dev/null; then |
1351 | libc_cv_have_sdata_section=yes | |
1352 | fi | |
1353 | rm -f conftest.c conftest.so | |
1354 | ]) | |
a0da5fe1 UD |
1355 | if test $libc_cv_have_sdata_section = yes; then |
1356 | AC_DEFINE(HAVE_SDATA_SECTION) | |
0d01dace | 1357 | fi |
a0da5fe1 | 1358 | fi |
0d01dace | 1359 | |
a0da5fe1 UD |
1360 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, |
1361 | libc_cv_initfini_array, [dnl | |
1362 | cat > conftest.c <<EOF | |
5241882c UD |
1363 | int _start (void) { return 0; } |
1364 | int __start (void) { return 0; } | |
1365 | int foo (void) { return 1; } | |
2c617417 | 1366 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; |
5241882c | 1367 | EOF |
a0da5fe1 UD |
1368 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c |
1369 | -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1370 | then | |
1371 | if $READELF -S conftest | fgrep INIT_ARRAY > /dev/null; then | |
1372 | libc_cv_initfini_array=yes | |
5241882c | 1373 | else |
ce33ee7c | 1374 | libc_cv_initfini_array=no |
5241882c | 1375 | fi |
a0da5fe1 UD |
1376 | else |
1377 | libc_cv_initfini_array=no | |
1378 | fi | |
1379 | rm -f conftest*]) | |
1380 | if test $libc_cv_initfini_array != yes; then | |
1381 | AC_MSG_ERROR([Need linker with .init_array/.fini_array support.]) | |
1382 | fi | |
62bede13 | 1383 | |
a0da5fe1 UD |
1384 | AC_CACHE_CHECK(whether to use .ctors/.dtors header and trailer, |
1385 | libc_cv_ctors_header, [dnl | |
1386 | libc_cv_ctors_header=yes | |
1387 | AC_TRY_LINK([], [ | |
113ddea4 RM |
1388 | __attribute__ ((constructor)) void ctor (void) { puts("ctor"); } |
1389 | __attribute__ ((destructor)) void dtor (void) { puts("dtor"); } | |
1390 | ], | |
a0da5fe1 | 1391 | [dnl |
113ddea4 | 1392 | AS_IF([$READELF -WS conftest$ac_exeext | $AWK ' |
92963737 | 1393 | { gsub(/\@<:@ */, "@<:@") } |
113ddea4 RM |
1394 | $2 == ".ctors" || $2 == ".dtors" { |
1395 | size = strtonum("0x" $6) | |
1396 | align = strtonum("0x" $NF) | |
1397 | seen@<:@$2@:>@ = 1 | |
1398 | stub@<:@$2@:>@ = size == align * 2 | |
92963737 | 1399 | } |
113ddea4 RM |
1400 | END { |
1401 | ctors_ok = !seen@<:@".ctors"@:>@ || stub@<:@".ctors"@:>@ | |
1402 | dtors_ok = !seen@<:@".dtors"@:>@ || stub@<:@".dtors"@:>@ | |
1403 | exit ((ctors_ok && dtors_ok) ? 0 : 1) | |
1404 | } | |
1405 | '], [libc_cv_ctors_header=no]) | |
1406 | ], [dnl | |
1407 | AC_MSG_ERROR([missing __attribute__ ((constructor)) support??]) | |
1408 | ]) | |
a0da5fe1 UD |
1409 | ]) |
1410 | if test $libc_cv_ctors_header = no; then | |
1411 | AC_DEFINE(NO_CTORS_DTORS_SECTIONS) | |
1412 | fi | |
5241882c | 1413 | |
a0da5fe1 UD |
1414 | AC_CACHE_CHECK(for libunwind-support in compiler, |
1415 | libc_cv_cc_with_libunwind, [ | |
1416 | cat > conftest.c <<EOF | |
cbdb12de UD |
1417 | int main (void) { return 0; } |
1418 | EOF | |
a0da5fe1 UD |
1419 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ |
1420 | conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then | |
1421 | libc_cv_cc_with_libunwind=yes | |
1422 | else | |
1423 | libc_cv_cc_with_libunwind=no | |
c776b3d7 | 1424 | fi |
a0da5fe1 UD |
1425 | rm -f conftest*]) |
1426 | AC_SUBST(libc_cv_cc_with_libunwind) | |
1427 | if test $libc_cv_cc_with_libunwind = yes; then | |
1428 | AC_DEFINE(HAVE_CC_WITH_LIBUNWIND) | |
1429 | fi | |
c776b3d7 | 1430 | |
a0da5fe1 UD |
1431 | AC_CACHE_CHECK(for -z nodelete option, |
1432 | libc_cv_z_nodelete, [dnl | |
1433 | cat > conftest.c <<EOF | |
0fb7851f UD |
1434 | int _start (void) { return 42; } |
1435 | EOF | |
a0da5fe1 UD |
1436 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1437 | -fPIC -shared -o conftest.so conftest.c | |
1438 | -nostartfiles -nostdlib | |
1439 | -Wl,--enable-new-dtags,-z,nodelete 1>&AS_MESSAGE_LOG_FD]) | |
1440 | then | |
1441 | libc_cv_z_nodelete=yes | |
1442 | else | |
1443 | AC_MSG_ERROR(linker with -z nodelete support required) | |
1444 | fi | |
1445 | rm -f conftest*]) | |
2f54c82d | 1446 | |
a0da5fe1 UD |
1447 | AC_CACHE_CHECK(for -z nodlopen option, |
1448 | libc_cv_z_nodlopen, [dnl | |
1449 | cat > conftest.c <<EOF | |
2f54c82d UD |
1450 | int _start (void) { return 42; } |
1451 | EOF | |
a0da5fe1 | 1452 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1453 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1454 | -nostartfiles -nostdlib |
c2f55635 | 1455 | -Wl,--enable-new-dtags,-z,nodlopen 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 UD |
1456 | then |
1457 | libc_cv_z_nodlopen=yes | |
1458 | else | |
1459 | AC_MSG_ERROR(linker with -z nodlopen support required) | |
1460 | fi | |
1461 | rm -f conftest*]) | |
5d916713 | 1462 | |
a0da5fe1 UD |
1463 | AC_CACHE_CHECK(for -z initfirst option, |
1464 | libc_cv_z_initfirst, [dnl | |
1465 | cat > conftest.c <<EOF | |
5d916713 UD |
1466 | int _start (void) { return 42; } |
1467 | EOF | |
a0da5fe1 | 1468 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1469 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1470 | -nostartfiles -nostdlib |
c2f55635 | 1471 | -Wl,--enable-new-dtags,-z,initfirst 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 UD |
1472 | then |
1473 | libc_cv_z_initfirst=yes | |
1474 | else | |
1475 | AC_MSG_ERROR(linker with -z initfirst support required) | |
1476 | fi | |
1477 | rm -f conftest*]) | |
639c3248 | 1478 | |
a0da5fe1 UD |
1479 | # Add-on fragments can set these for other machines. |
1480 | libc_commonpagesize=${libc_commonpagesize:-no} | |
1481 | libc_relro_required=${libc_relro_required:-no} | |
1482 | case "$base_machine" in | |
1483 | i[[34567]]86 | x86_64 | powerpc* | s390*) | |
1484 | libc_commonpagesize=0x1000 | |
1485 | libc_relro_required=yes | |
1486 | ;; | |
1487 | sparc*) | |
1488 | libc_commonpagesize=0x2000 | |
1489 | libc_relro_required=yes | |
1490 | ;; | |
a0da5fe1 | 1491 | esac |
574920b4 | 1492 | |
a0da5fe1 UD |
1493 | if test $libc_commonpagesize != no; then |
1494 | AC_CACHE_CHECK(for -z relro option, | |
1495 | libc_cv_z_relro, [dnl | |
1496 | libc_cv_z_relro=no | |
1497 | AC_LANG_CONFTEST([AC_LANG_SOURCE([[ | |
574920b4 RM |
1498 | int _start (void) { return 42; } |
1499 | extern void _exit (int); | |
9fa2c032 RM |
1500 | /* Since these pointers are const, they should go in rodata. |
1501 | Since they refer to functions that have to be resolved by | |
1502 | dynamic linking, they should instead go in RELRO data. */ | |
defe9061 | 1503 | const void *const relro[] = { &_start, &_exit, 0 }; |
9fa2c032 RM |
1504 | /* GNU ld fails to produce RELRO data when it's very small and there is no |
1505 | normal writable data following it, or if only uninitialized (.bss) data | |
1506 | follows it, or only very small writable data. */ | |
1507 | int data[0x10000] = { 1, }; | |
574920b4 | 1508 | ]])]) |
a0da5fe1 | 1509 | cat > conftest.awk <<\EOF |
574920b4 RM |
1510 | BEGIN { |
1511 | result = "no" | |
1512 | commonpagesize = strtonum(commonpagesize) | |
1513 | } | |
1514 | { print "LINE:", $0 > "/dev/stderr" } | |
1515 | $1 == "GNU_RELRO" { | |
1516 | vaddr = strtonum($3) | |
1517 | memsz = strtonum($6) | |
1518 | end = vaddr + memsz | |
1519 | printf "vaddr %#x memsz %#x end %#x commonpagesize %#x\n", \ | |
1520 | vaddr, memsz, end, commonpagesize > "/dev/stderr" | |
1521 | result = (end % commonpagesize == 0) ? "yes" : "broken" | |
1522 | } | |
1523 | END { print result } | |
1524 | EOF | |
a0da5fe1 | 1525 | AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
574920b4 RM |
1526 | -fPIC -shared -o conftest.so conftest.c |
1527 | -nostartfiles -nostdlib | |
1528 | -Wl,-z,relro 1>&AS_MESSAGE_LOG_FD]) && | |
a0da5fe1 UD |
1529 | AC_TRY_COMMAND([$READELF -Wl conftest.so > conftest.ph]) && |
1530 | AC_TRY_COMMAND([ | |
574920b4 RM |
1531 | $AWK -v commonpagesize=$libc_commonpagesize -f conftest.awk |
1532 | conftest.ph > conftest.cps | |
1533 | ]) && | |
a0da5fe1 UD |
1534 | libc_cv_z_relro=`cat conftest.cps 2>&AS_MESSAGE_LOG_FD` |
1535 | rm -f conftest*]) | |
1536 | if { test "x$libc_relro_required" = xyes && | |
1537 | test "x$libc_cv_z_relro" != xyes | |
1538 | } | |
1539 | then | |
1540 | AC_MSG_ERROR(linker with -z relro support required) | |
574920b4 | 1541 | fi |
a0da5fe1 UD |
1542 | else |
1543 | AC_MSG_WARN([missing architecture parameter to check for working -z relro]) | |
1544 | fi | |
ed20b3d9 | 1545 | |
a0da5fe1 UD |
1546 | AC_CACHE_CHECK(for -Bgroup option, |
1547 | libc_cv_Bgroup, [dnl | |
1548 | cat > conftest.c <<EOF | |
639c3248 UD |
1549 | int _start (void) { return 42; } |
1550 | EOF | |
a0da5fe1 UD |
1551 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1552 | -fPIC -shared -o conftest.so conftest.c | |
1553 | -Wl,-Bgroup -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1554 | then | |
1555 | libc_cv_Bgroup=yes | |
1556 | else | |
1557 | libc_cv_Bgroup=no | |
1558 | fi | |
1559 | rm -f conftest*]) | |
1560 | AC_SUBST(libc_cv_Bgroup) | |
a711b01d | 1561 | |
a0da5fe1 UD |
1562 | AC_CACHE_CHECK(for libgcc_s suffix, |
1563 | libc_cv_libgcc_s_suffix, [dnl | |
1564 | cat > conftest.c <<EOF | |
cdbf48be UD |
1565 | int main (void) { return 0; } |
1566 | EOF | |
1567 | changequote(,)dnl | |
a0da5fe1 | 1568 | libc_cv_libgcc_s_suffix=`${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ |
dbc92dc6 | 1569 | -fPIC -shared -shared-libgcc -o conftest.so \ |
cdbf48be UD |
1570 | conftest.c -v 2>&1 >/dev/null \ |
1571 | | sed -n 's/^.* -lgcc_s\([^ ]*\) .*$/\1/p'` | |
1572 | changequote([,])dnl | |
a0da5fe1 UD |
1573 | rm -f conftest*]) |
1574 | AC_SUBST(libc_cv_libgcc_s_suffix) | |
cdbf48be | 1575 | |
a0da5fe1 UD |
1576 | AC_CACHE_CHECK(for --as-needed option, |
1577 | libc_cv_as_needed, [dnl | |
1578 | cat > conftest.c <<EOF | |
feca5e0b UD |
1579 | int main (void) { return 0; } |
1580 | EOF | |
a0da5fe1 | 1581 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1582 | -fPIC -shared -o conftest.so conftest.c |
cdbf48be UD |
1583 | -lgcc_s$libc_cv_libgcc_s_suffix -Wl,--as-needed |
1584 | -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
a0da5fe1 UD |
1585 | then |
1586 | libc_cv_as_needed=yes | |
1587 | else | |
1588 | libc_cv_as_needed=no | |
1589 | fi | |
1590 | rm -f conftest*]) | |
1591 | AC_SUBST(libc_cv_as_needed) | |
feca5e0b | 1592 | |
a0da5fe1 UD |
1593 | ASFLAGS_config= |
1594 | AC_CACHE_CHECK(whether --noexecstack is desirable for .S files, | |
1595 | libc_cv_as_noexecstack, [dnl | |
1596 | cat > conftest.c <<EOF | |
35915ec8 UD |
1597 | void foo (void) { } |
1598 | EOF | |
a0da5fe1 UD |
1599 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS |
1600 | -S -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) \ | |
1601 | && grep -q .note.GNU-stack conftest.s \ | |
1602 | && AC_TRY_COMMAND([${CC-cc} $ASFLAGS -Wa,--noexecstack | |
1603 | -c -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD]) | |
1604 | then | |
1605 | libc_cv_as_noexecstack=yes | |
1606 | else | |
1607 | libc_cv_as_noexecstack=no | |
1608 | fi | |
1609 | rm -f conftest*]) | |
1610 | if test $libc_cv_as_noexecstack = yes; then | |
1611 | ASFLAGS_config="$ASFLAGS_config -Wa,--noexecstack" | |
1612 | fi | |
1613 | AC_SUBST(ASFLAGS_config) | |
2abf9ff1 | 1614 | |
a0da5fe1 UD |
1615 | AC_CACHE_CHECK(for -z combreloc, |
1616 | libc_cv_z_combreloc, [dnl | |
1617 | cat > conftest.c <<EOF | |
d555194c UD |
1618 | extern int bar (int); |
1619 | extern int mumble; | |
1620 | int foo (void) { return bar (mumble); } | |
a711b01d | 1621 | EOF |
a0da5fe1 | 1622 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1623 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1624 | -nostdlib -nostartfiles |
c2f55635 | 1625 | -Wl,-z,combreloc 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 | 1626 | then |
a711b01d UD |
1627 | dnl The following test is a bit weak. We must use a tool which can test |
1628 | dnl cross-platform since the gcc used can be a cross compiler. Without | |
1629 | dnl introducing new options this is not easily doable. Instead use a tool | |
1630 | dnl which always is cross-platform: readelf. To detect whether -z combreloc | |
1631 | dnl look for a section named .rel.dyn. | |
a0da5fe1 UD |
1632 | if $READELF -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then |
1633 | libc_cv_z_combreloc=yes | |
fdde8349 UD |
1634 | else |
1635 | libc_cv_z_combreloc=no | |
a711b01d | 1636 | fi |
a0da5fe1 UD |
1637 | else |
1638 | libc_cv_z_combreloc=no | |
1639 | fi | |
1640 | rm -f conftest*]) | |
1641 | if test "$libc_cv_z_combreloc" = yes; then | |
1642 | AC_DEFINE(HAVE_Z_COMBRELOC) | |
1643 | fi | |
1644 | AC_SUBST(libc_cv_z_combreloc) | |
2abf9ff1 | 1645 | |
a0da5fe1 UD |
1646 | AC_CACHE_CHECK(for -z execstack, |
1647 | libc_cv_z_execstack, [dnl | |
1648 | cat > conftest.c <<EOF | |
2abf9ff1 RM |
1649 | int _start (void) { return 42; } |
1650 | EOF | |
a0da5fe1 UD |
1651 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1652 | -fPIC -shared -o conftest.so conftest.c | |
1653 | -Wl,-z,execstack -nostdlib | |
1654 | 1>&AS_MESSAGE_LOG_FD]) | |
1655 | then | |
1656 | libc_cv_z_execstack=yes | |
1657 | else | |
1658 | libc_cv_z_execstack=no | |
1659 | fi | |
1660 | rm -f conftest*]) | |
1661 | AC_SUBST(libc_cv_z_execstack) | |
c9c60884 | 1662 | |
a0da5fe1 UD |
1663 | AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl |
1664 | cat > conftest.c <<EOF | |
c9c60884 | 1665 | int foo; |
49803108 | 1666 | main () { return 0;} |
c9c60884 | 1667 | EOF |
a0da5fe1 UD |
1668 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie |
1669 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
1670 | then | |
1671 | libc_cv_fpie=yes | |
1672 | else | |
1673 | libc_cv_fpie=no | |
1674 | fi | |
1675 | rm -f conftest*]) | |
c9c60884 | 1676 | |
a0da5fe1 | 1677 | AC_SUBST(libc_cv_fpie) |
871b9158 | 1678 | |
a0da5fe1 UD |
1679 | AC_CACHE_CHECK(for --hash-style option, |
1680 | libc_cv_hashstyle, [dnl | |
1681 | cat > conftest.c <<EOF | |
871b9158 UD |
1682 | int _start (void) { return 42; } |
1683 | EOF | |
a0da5fe1 UD |
1684 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1685 | -fPIC -shared -o conftest.so conftest.c | |
1686 | -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1687 | then | |
1688 | libc_cv_hashstyle=yes | |
1689 | else | |
1690 | libc_cv_hashstyle=no | |
1691 | fi | |
1692 | rm -f conftest*]) | |
1693 | AC_SUBST(libc_cv_hashstyle) | |
1694 | ||
1695 | # The linker's default -shared behavior is good enough if it | |
1696 | # does these things that our custom linker scripts ensure that | |
1697 | # all allocated NOTE sections come first. | |
1698 | if test "$use_default_link" = default; then | |
1699 | AC_CACHE_CHECK([for sufficient default -shared layout], | |
1700 | libc_cv_use_default_link, [dnl | |
1701 | libc_cv_use_default_link=no | |
1702 | cat > conftest.s <<\EOF | |
fd5e21c7 RM |
1703 | .section .note.a,"a",%note |
1704 | .balign 4 | |
1705 | .long 4,4,9 | |
1706 | .string "GNU" | |
1707 | .string "foo" | |
1708 | .section .note.b,"a",%note | |
1709 | .balign 4 | |
1710 | .long 4,4,9 | |
1711 | .string "GNU" | |
1712 | .string "bar" | |
1713 | EOF | |
a0da5fe1 | 1714 | if AC_TRY_COMMAND([dnl |
fd5e21c7 RM |
1715 | ${CC-cc} $ASFLAGS -shared -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD]) && |
1716 | ac_try=`$READELF -S conftest.so | sed -n \ | |
1717 | ['${x;p;} | |
1718 | s/^ *\[ *[1-9][0-9]*\] *\([^ ][^ ]*\) *\([^ ][^ ]*\) .*$/\2 \1/ | |
1719 | t a | |
1720 | b | |
1721 | : a | |
1722 | H']` | |
a0da5fe1 UD |
1723 | then |
1724 | libc_seen_a=no libc_seen_b=no | |
1725 | set -- $ac_try | |
1726 | while test $# -ge 2 -a "$1" = NOTE; do | |
1727 | case "$2" in | |
1728 | .note.a) libc_seen_a=yes ;; | |
1729 | .note.b) libc_seen_b=yes ;; | |
1730 | esac | |
1731 | shift 2 | |
1732 | done | |
1733 | case "$libc_seen_a$libc_seen_b" in | |
1734 | yesyes) | |
1735 | libc_cv_use_default_link=yes | |
1736 | ;; | |
1737 | *) | |
1738 | echo >&AS_MESSAGE_LOG_FD "\ | |
fd5e21c7 RM |
1739 | $libc_seen_a$libc_seen_b from: |
1740 | $ac_try" | |
a0da5fe1 UD |
1741 | ;; |
1742 | esac | |
fd5e21c7 | 1743 | fi |
a0da5fe1 UD |
1744 | rm -f conftest*]) |
1745 | use_default_link=$libc_cv_use_default_link | |
fd26970f | 1746 | fi |
49803108 | 1747 | |
5c550700 RM |
1748 | AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl |
1749 | if libc_cv_output_format=` | |
1750 | ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD` | |
1751 | then | |
1752 | : | |
1753 | else | |
1754 | libc_cv_output_format= | |
1755 | fi | |
1756 | test -n "$libc_cv_output_format" || libc_cv_output_format=unknown]) | |
1757 | AC_SUBST(libc_cv_output_format) | |
1758 | ||
22dca1ea | 1759 | AC_CACHE_CHECK(for -fno-toplevel-reorder -fno-section-anchors, libc_cv_fno_toplevel_reorder, [dnl |
49803108 AJ |
1760 | cat > conftest.c <<EOF |
1761 | int foo; | |
1762 | EOF | |
22dca1ea | 1763 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors |
49803108 AJ |
1764 | conftest.c 1>&AS_MESSAGE_LOG_FD]) |
1765 | then | |
18e2ac6d | 1766 | libc_cv_fno_toplevel_reorder=yes |
49803108 | 1767 | else |
18e2ac6d | 1768 | libc_cv_fno_toplevel_reorder=no |
49803108 AJ |
1769 | fi |
1770 | rm -f conftest*]) | |
18e2ac6d | 1771 | if test $libc_cv_fno_toplevel_reorder = yes; then |
22dca1ea | 1772 | fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors" |
18e2ac6d | 1773 | else |
49803108 AJ |
1774 | fno_unit_at_a_time=-fno-unit-at-a-time |
1775 | fi | |
1776 | AC_SUBST(fno_unit_at_a_time) | |
fd26970f | 1777 | |
401a9ec9 UD |
1778 | AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl |
1779 | cat > conftest.c <<EOF | |
1780 | int foo; | |
1781 | main () { return 0;} | |
1782 | EOF | |
a40fbc8d | 1783 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -Werror -fstack-protector |
401a9ec9 UD |
1784 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) |
1785 | then | |
1786 | libc_cv_ssp=yes | |
1787 | else | |
1788 | libc_cv_ssp=no | |
1789 | fi | |
1790 | rm -f conftest*]) | |
1791 | AC_SUBST(libc_cv_ssp) | |
1792 | ||
b037a293 UD |
1793 | AC_CACHE_CHECK(for -fgnu89-inline, libc_cv_gnu89_inline, [dnl |
1794 | cat > conftest.c <<EOF | |
1795 | int foo; | |
1796 | #ifdef __GNUC_GNU_INLINE__ | |
1797 | main () { return 0;} | |
1798 | #else | |
1799 | #error | |
1800 | #endif | |
1801 | EOF | |
371f84a4 JJ |
1802 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -std=gnu99 -fgnu89-inline |
1803 | -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
b037a293 UD |
1804 | then |
1805 | libc_cv_gnu89_inline=yes | |
1806 | else | |
1807 | libc_cv_gnu89_inline=no | |
1808 | fi | |
1809 | rm -f conftest*]) | |
1810 | if test $libc_cv_gnu89_inline = yes; then | |
1c7570ff | 1811 | gnu89_inline=-fgnu89-inline |
b037a293 | 1812 | else |
1c7570ff | 1813 | gnu89_inline= |
b037a293 | 1814 | fi |
1c7570ff | 1815 | AC_SUBST(gnu89_inline) |
b037a293 | 1816 | |
a0da5fe1 UD |
1817 | AC_CACHE_CHECK(whether cc puts quotes around section names, |
1818 | libc_cv_have_section_quotes, | |
1819 | [cat > conftest.c <<EOF | |
1820 | static const int foo | |
1821 | __attribute__ ((section ("bar"))) = 1; | |
e26dd47f | 1822 | EOF |
a0da5fe1 UD |
1823 | if ${CC-cc} -S conftest.c -o conftest.s; then |
1824 | if grep '\.section.*"bar"' conftest.s >/dev/null; then | |
1825 | libc_cv_have_section_quotes=yes | |
e26dd47f | 1826 | else |
a0da5fe1 | 1827 | libc_cv_have_section_quotes=no |
e26dd47f | 1828 | fi |
a0da5fe1 UD |
1829 | else |
1830 | libc_cv_have_section_quotes=unknown | |
1831 | fi | |
1832 | rm -f conftest.{c,s} | |
1833 | ]) | |
1834 | if test $libc_cv_have_section_quotes = yes; then | |
1835 | AC_DEFINE(HAVE_SECTION_QUOTES) | |
9a97d1f7 UD |
1836 | fi |
1837 | ||
1838 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
75d86c1f | 1839 | [dnl |
c224a18a | 1840 | cat > conftest.s <<EOF |
2293395f | 1841 | ${libc_cv_dot_text} |
c224a18a | 1842 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1843 | foo: |
c224a18a RM |
1844 | .weak foo |
1845 | .weak bar; bar = foo | |
1846 | EOF | |
3217788f | 1847 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a97d1f7 UD |
1848 | libc_cv_asm_weak_directive=yes |
1849 | else | |
1850 | libc_cv_asm_weak_directive=no | |
1851 | fi | |
1852 | rm -f conftest*]) | |
c224a18a | 1853 | |
c8cf0b14 | 1854 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
1855 | AC_CACHE_CHECK(for assembler .weakext directive, |
1856 | libc_cv_asm_weakext_directive, | |
1857 | [dnl | |
1858 | cat > conftest.s <<EOF | |
2293395f | 1859 | ${libc_cv_dot_text} |
c224a18a | 1860 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1861 | foo: |
f802accb UD |
1862 | .weakext bar foo |
1863 | .weakext baz | |
1864 | ${libc_cv_asm_global_directive} baz | |
9a97d1f7 | 1865 | baz: |
c224a18a | 1866 | EOF |
3217788f | 1867 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
c224a18a RM |
1868 | libc_cv_asm_weakext_directive=yes |
1869 | else | |
1870 | libc_cv_asm_weakext_directive=no | |
1871 | fi | |
1872 | rm -f conftest*]) | |
1873 | ||
9a97d1f7 | 1874 | fi # no .weak |
c224a18a | 1875 | |
ffcf9634 | 1876 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 1877 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 1878 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
1879 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
1880 | fi | |
1881 | ||
50189569 | 1882 | AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl |
ced368f7 UD |
1883 | case $machine in |
1884 | sparc/sparc64*) cfi_offset=2047;; | |
1885 | *) cfi_offset=0;; | |
1886 | esac | |
50189569 | 1887 | cat > conftest.s <<EOF |
77e8bddf AS |
1888 | .text |
1889 | .type func,%function | |
50189569 | 1890 | func: |
77e8bddf | 1891 | .cfi_startproc |
f212e8dc | 1892 | .cfi_remember_state |
ced368f7 | 1893 | .cfi_rel_offset 1, $cfi_offset |
77e8bddf | 1894 | .cfi_endproc |
50189569 AJ |
1895 | EOF |
1896 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1897 | libc_cv_asm_cfi_directives=yes | |
1898 | else | |
1899 | libc_cv_asm_cfi_directives=no | |
1900 | fi | |
1901 | rm -f conftest*]) | |
1902 | if test $libc_cv_asm_cfi_directives = yes; then | |
1903 | AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) | |
bcd5f356 | 1904 | fi |
50189569 | 1905 | |
a641835a RM |
1906 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
1907 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 1908 | _start () {} |
dcf0671d UD |
1909 | int __eh_pc; |
1910 | __throw () {} | |
a641835a | 1911 | EOF |
dcea62dd | 1912 | dnl No \ in command here because it ends up inside ''. |
3217788f | 1913 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dcea62dd | 1914 | -nostdlib -nostartfiles -Wl,--no-whole-archive |
c2f55635 | 1915 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
a641835a RM |
1916 | libc_cv_ld_no_whole_archive=yes |
1917 | else | |
1918 | libc_cv_ld_no_whole_archive=no | |
1919 | fi | |
1920 | rm -f conftest*]) | |
3ce1f295 UD |
1921 | if test $libc_cv_ld_no_whole_archive = no; then |
1922 | AC_MSG_ERROR([support for --no-whole-archive is needed]) | |
b17277cf | 1923 | fi |
a641835a | 1924 | |
dff14448 | 1925 | AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl |
b236e99d UD |
1926 | cat > conftest.c <<\EOF |
1927 | _start () {} | |
1928 | int __eh_pc; | |
1929 | __throw () {} | |
1930 | EOF | |
1931 | dnl No \ in command here because it ends up inside ''. | |
3217788f | 1932 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dff14448 | 1933 | -nostdlib -nostartfiles -fexceptions |
c2f55635 | 1934 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
dff14448 | 1935 | libc_cv_gcc_exceptions=yes |
b236e99d | 1936 | else |
dff14448 | 1937 | libc_cv_gcc_exceptions=no |
b236e99d UD |
1938 | fi |
1939 | rm -f conftest*]) | |
dff14448 UD |
1940 | if test $libc_cv_gcc_exceptions = yes; then |
1941 | exceptions=-fexceptions | |
b17277cf | 1942 | fi |
dff14448 | 1943 | AC_SUBST(exceptions)dnl |
b236e99d | 1944 | |
66000494 UD |
1945 | if test "$host_cpu" = powerpc ; then |
1946 | # Check for a bug present in at least versions 2.8.x of GCC | |
1947 | # and versions 1.0.x of EGCS. | |
1948 | AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl | |
1949 | AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, | |
1950 | libc_cv_c_asmcr0_bug='no', | |
1951 | libc_cv_c_asmcr0_bug='yes')]) | |
1952 | if test "$libc_cv_c_asmcr0_bug" != 'no'; then | |
1953 | AC_DEFINE(BROKEN_PPC_ASM_CR0) | |
1954 | fi | |
1955 | fi | |
1956 | ||
d555194c UD |
1957 | AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl |
1958 | cat > conftest.c <<\EOF | |
1959 | void zero (void *x) | |
1960 | { | |
a52d1562 | 1961 | __builtin_memset (x, 0, 1000); |
d555194c UD |
1962 | } |
1963 | EOF | |
1964 | dnl | |
1965 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]); | |
1966 | then | |
1967 | libc_cv_gcc_builtin_memset=no | |
1968 | else | |
1969 | libc_cv_gcc_builtin_memset=yes | |
1970 | fi | |
1971 | rm -f conftest* ]) | |
1972 | if test "$libc_cv_gcc_builtin_memset" = yes ; then | |
1973 | AC_DEFINE(HAVE_BUILTIN_MEMSET) | |
1974 | fi | |
1975 | ||
85dd1003 UD |
1976 | AC_CACHE_CHECK(for redirection of built-in functions, libc_cv_gcc_builtin_redirection, [dnl |
1977 | cat > conftest.c <<\EOF | |
1978 | extern char *strstr (const char *, const char *) __asm ("my_strstr"); | |
1979 | char *foo (const char *a, const char *b) | |
1980 | { | |
1981 | return __builtin_strstr (a, b); | |
1982 | } | |
1983 | EOF | |
1984 | dnl | |
1985 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "my_strstr" > /dev/null]); | |
1986 | then | |
1987 | libc_cv_gcc_builtin_redirection=yes | |
1988 | else | |
1989 | libc_cv_gcc_builtin_redirection=no | |
1990 | fi | |
1991 | rm -f conftest* ]) | |
3ce1f295 UD |
1992 | if test "$libc_cv_gcc_builtin_redirection" = no; then |
1993 | AC_MSG_ERROR([support for the symbol redirection needed]) | |
85dd1003 UD |
1994 | fi |
1995 | ||
739d440d | 1996 | dnl Check whether the compiler supports the __thread keyword. |
3ce1f295 UD |
1997 | AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread, |
1998 | [cat > conftest.c <<\EOF | |
fbb18522 RM |
1999 | __thread int a = 42; |
2000 | EOF | |
3ce1f295 UD |
2001 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD]); then |
2002 | libc_cv_gcc___thread=yes | |
739d440d UD |
2003 | else |
2004 | libc_cv_gcc___thread=no | |
2005 | fi | |
3ce1f295 UD |
2006 | rm -f conftest*]) |
2007 | if test "$libc_cv_gcc___thread" = no; then | |
2008 | AC_MSG_ERROR([support for the __thread keyword is required]) | |
2009 | fi | |
739d440d | 2010 | |
3ce1f295 UD |
2011 | dnl Check whether the compiler supports the tls_model attribute. |
2012 | AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl | |
2013 | cat > conftest.c <<\EOF | |
9b21e6bc RM |
2014 | extern __thread int a __attribute__((tls_model ("initial-exec"))); |
2015 | EOF | |
3ce1f295 UD |
2016 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -Werror conftest.c >&AS_MESSAGE_LOG_FD]); then |
2017 | libc_cv_gcc_tls_model_attr=yes | |
2018 | else | |
2019 | libc_cv_gcc_tls_model_attr=no | |
2020 | fi | |
2021 | rm -f conftest*]) | |
2022 | if test "$libc_cv_gcc_tls_model_attr" = no; then | |
2023 | AC_MSG_ERROR([support for the tls_model attribute is required]) | |
9b21e6bc | 2024 | fi |
739d440d | 2025 | |
2cf9ad57 RM |
2026 | if test -n "$submachine"; then |
2027 | AC_CACHE_CHECK([for compiler option for CPU variant], | |
f7d82dc9 | 2028 | libc_cv_cc_submachine, [dnl |
2cf9ad57 RM |
2029 | libc_cv_cc_submachine=no |
2030 | for opt in "-march=$submachine" "-mcpu=$submachine"; do | |
2031 | if AC_TRY_COMMAND([${CC-cc} $opt -xc /dev/null -S -o /dev/null]); then | |
2032 | libc_cv_cc_submachine="$opt" | |
2033 | break | |
2034 | fi | |
2035 | done]) | |
2036 | if test "x$libc_cv_cc_submachine" = xno; then | |
2037 | AC_MSG_ERROR([${CC-cc} does not support $submachine]) | |
2038 | fi | |
2039 | fi | |
2040 | AC_SUBST(libc_cv_cc_submachine) | |
2041 | ||
c8f3e6db UD |
2042 | dnl Check whether we have the gd library available. |
2043 | AC_MSG_CHECKING(for libgd) | |
6dab8688 UD |
2044 | if test "$with_gd" != "no"; then |
2045 | old_CFLAGS="$CFLAGS" | |
2046 | CFLAGS="$CFLAGS $libgd_include" | |
2047 | old_LDFLAGS="$LDFLAGS" | |
2048 | LDFLAGS="$LDFLAGS $libgd_ldflags" | |
2049 | old_LIBS="$LIBS" | |
2050 | LIBS="$LIBS -lgd -lpng -lz -lm" | |
2051 | AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no) | |
2052 | CFLAGS="$old_CFLAGS" | |
2053 | LDFLAGS="$old_LDFLAGS" | |
2054 | LIBS="$old_LIBS" | |
2055 | else | |
2056 | LIBGD=no | |
2057 | fi | |
c8f3e6db UD |
2058 | AC_MSG_RESULT($LIBGD) |
2059 | AC_SUBST(LIBGD) | |
3d558f4e | 2060 | |
2fff3d93 UD |
2061 | # SELinux detection |
2062 | if test x$with_selinux = xno ; then | |
2063 | have_selinux=no; | |
2064 | else | |
2065 | # See if we have the SELinux library | |
2066 | AC_CHECK_LIB(selinux, is_selinux_enabled, | |
2067 | have_selinux=yes, have_selinux=no) | |
2068 | # See if we have the SELinux header with the NSCD permissions in it. | |
2069 | if test x$have_selinux = xyes ; then | |
2070 | AC_MSG_CHECKING([for NSCD Flask permissions in selinux/av_permissions.h]) | |
2071 | AC_TRY_COMPILE([#include <selinux/av_permissions.h>], | |
2072 | [#ifdef NSCD__SHMEMHOST | |
2073 | return 0; | |
2074 | #else | |
2075 | #error NSCD__SHMEMHOST not defined | |
2076 | #endif], | |
2077 | have_selinux=yes, have_selinux=no) | |
2078 | AC_MSG_RESULT($have_selinux) | |
2079 | fi | |
2080 | ||
49155d51 | 2081 | if test x$with_selinux = xyes ; then |
2fff3d93 | 2082 | if test x$have_selinux = xno ; then |
49155d51 | 2083 | AC_MSG_ERROR([SELinux explicitly required, but sufficiently recent SELinux library not found]) |
2fff3d93 UD |
2084 | fi |
2085 | fi | |
2086 | fi | |
2087 | # Check if we're building with SELinux support. | |
2088 | if test "x$have_selinux" = xyes; then | |
943db9eb | 2089 | AC_DEFINE(HAVE_SELINUX, 1, [SELinux support]) |
ec23b9be UD |
2090 | |
2091 | # See if we have the libaudit library | |
943db9eb | 2092 | AC_CHECK_LIB(audit, audit_log_user_avc_message, |
77e8bddf | 2093 | have_libaudit=yes, have_libaudit=no) |
ec23b9be | 2094 | if test "x$have_libaudit" = xyes; then |
943db9eb | 2095 | AC_DEFINE(HAVE_LIBAUDIT, 1, [SELinux libaudit support]) |
ec23b9be UD |
2096 | fi |
2097 | AC_SUBST(have_libaudit) | |
1f063dca UD |
2098 | |
2099 | # See if we have the libcap library | |
2100 | AC_CHECK_LIB(cap, cap_init, have_libcap=yes, have_libcap=no) | |
2101 | if test "x$have_libcap" = xyes; then | |
2102 | AC_DEFINE(HAVE_LIBCAP, 1, [SELinux libcap support]) | |
2103 | fi | |
2104 | AC_SUBST(have_libcap) | |
2fff3d93 UD |
2105 | fi |
2106 | AC_SUBST(have_selinux) | |
2107 | ||
8ed1e7d5 GK |
2108 | dnl check for the size of 'long double'. |
2109 | AC_CHECK_SIZEOF(long double, 0) | |
2110 | sizeof_long_double=$ac_cv_sizeof_long_double | |
2111 | AC_SUBST(sizeof_long_double) | |
2112 | ||
c224a18a RM |
2113 | ### End of automated tests. |
2114 | ### Now run sysdeps configure fragments. | |
2115 | ||
cb343854 | 2116 | # They also can set these variables. |
591e1ffb | 2117 | use_ldconfig=no |
cb343854 | 2118 | ldd_rewrite_script=no |
77259608 | 2119 | libc_cv_sysconfdir=$sysconfdir |
74bd2300 | 2120 | libc_cv_gcc_unwind_find_fde=no |
e2fd3cbe | 2121 | libc_cv_idn=no |
cb343854 | 2122 | |
28f540f4 | 2123 | # Iterate over all the sysdep directories we will use, running their |
09055553 | 2124 | # configure fragments. |
28f540f4 | 2125 | for dir in $sysnames; do |
57ba7bb4 UD |
2126 | case $dir in |
2127 | /*) dest=$dir ;; | |
2128 | *) dest=$srcdir/$dir ;; | |
2129 | esac | |
2130 | if test -r $dest/configure; then | |
d1149385 | 2131 | AC_MSG_RESULT(running configure fragment for $dir) |
57ba7bb4 | 2132 | . $dest/configure |
28f540f4 | 2133 | fi |
28f540f4 RM |
2134 | done |
2135 | ||
74bd2300 UD |
2136 | if test x$libc_cv_gcc_unwind_find_fde = xyes; then |
2137 | AC_DEFINE(EXPORT_UNWIND_FIND_FDE) | |
2138 | fi | |
2139 | AC_SUBST(libc_cv_gcc_unwind_find_fde) | |
2140 | ||
a53bad16 UD |
2141 | # Test for old glibc 2.0.x headers so that they can be removed properly |
2142 | # Search only in includedir. | |
2143 | AC_MSG_CHECKING(for old glibc 2.0.x headers) | |
350eb336 | 2144 | if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h" |
a53bad16 UD |
2145 | then |
2146 | old_glibc_headers=yes | |
2147 | else | |
2148 | old_glibc_headers=no | |
2149 | fi | |
2150 | AC_MSG_RESULT($old_glibc_headers) | |
2151 | if test ${old_glibc_headers} = yes; then | |
2152 | AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will) | |
2153 | AC_MSG_WARN(*** be removed.) | |
2154 | fi | |
b195f6bc | 2155 | AC_SUBST(old_glibc_headers) |
26b4d766 | 2156 | |
84384f5b | 2157 | AC_SUBST(libc_cv_slibdir) |
a1d84548 | 2158 | AC_SUBST(libc_cv_localedir) |
77259608 | 2159 | AC_SUBST(libc_cv_sysconfdir) |
1ef32c3d | 2160 | AC_SUBST(libc_cv_rootsbindir) |
bcd5f356 | 2161 | AC_SUBST(libc_cv_forced_unwind) |
1ef32c3d | 2162 | |
58a4b51a RM |
2163 | dnl sysdeps/CPU/configure.in checks set this via arch-specific asm tests |
2164 | AC_SUBST(libc_cv_cpp_asm_debuginfo) | |
06e51c8f | 2165 | AC_SUBST(libc_cv_cc_sse4) |
b0ecde3a | 2166 | AC_SUBST(libc_cv_cc_avx) |
091023f5 | 2167 | AC_SUBST(libc_cv_cc_novzeroupper) |
af968f62 | 2168 | AC_SUBST(libc_cv_cc_fma4) |
01f1f5ee | 2169 | AC_SUBST(libc_cv_as_i686) |
58a4b51a | 2170 | |
591e1ffb | 2171 | AC_SUBST(use_ldconfig) |
cb343854 | 2172 | AC_SUBST(ldd_rewrite_script) |
84384f5b | 2173 | |
650425ce | 2174 | AC_SUBST(static) |
ff3d7ed3 | 2175 | AC_SUBST(shared) |
a334319f | 2176 | |
ff886b82 UD |
2177 | AC_CACHE_CHECK([whether -fPIC is default], libc_cv_pic_default, |
2178 | [libc_cv_pic_default=yes | |
cc3fa755 | 2179 | cat > conftest.c <<EOF |
9756dfe1 | 2180 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
2181 | # error PIC is default. |
2182 | #endif | |
2183 | EOF | |
0b4ee387 | 2184 | if eval "${CC-cc} -S conftest.c 2>&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then |
ff886b82 | 2185 | libc_cv_pic_default=no |
cc3fa755 UD |
2186 | fi |
2187 | rm -f conftest.*]) | |
ff886b82 | 2188 | AC_SUBST(libc_cv_pic_default) |
cc3fa755 | 2189 | |
ff3d7ed3 | 2190 | AC_SUBST(profile) |
5107cf1d | 2191 | AC_SUBST(static_nss) |
5ae3e846 | 2192 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 2193 | |
edf5b2d7 UD |
2194 | AC_SUBST(DEFINES) |
2195 | ||
61c83c3f RM |
2196 | dnl See sysdeps/mach/configure.in for this variable. |
2197 | AC_SUBST(mach_interface_list) | |
2198 | ||
28f540f4 RM |
2199 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
2200 | config_makefile= | |
2201 | else | |
2202 | config_makefile=Makefile | |
2203 | fi | |
2204 | ||
ee74a442 UD |
2205 | VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h` |
2206 | RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h` | |
df4ef2ab | 2207 | AC_SUBST(VERSION) |
ee74a442 | 2208 | AC_SUBST(RELEASE) |
df4ef2ab | 2209 | |
09055553 | 2210 | AC_CONFIG_FILES([config.make ${config_makefile}]) |
c118d634 | 2211 | AC_CONFIG_COMMANDS([default],[[ |
737547be UD |
2212 | case $CONFIG_FILES in *config.make*) |
2213 | echo "$config_vars" >> config.make;; | |
2214 | esac | |
c118d634 RM |
2215 | test -d bits || mkdir bits]],[[config_vars='$config_vars']]) |
2216 | AC_OUTPUT |