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