]>
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=$enableval], |
105 | [enable_sanity=yes]) | |
a18f587d | 106 | |
6b7f6183 | 107 | AC_ARG_ENABLE([shared], |
77e8bddf | 108 | AC_HELP_STRING([--enable-shared], |
a0da5fe1 | 109 | [build shared library @<:@default=yes if GNU ld@:>@]), |
6b7f6183 | 110 | [shared=$enableval], |
a0da5fe1 | 111 | [shared=yes]) |
6b7f6183 | 112 | AC_ARG_ENABLE([profile], |
77e8bddf AS |
113 | AC_HELP_STRING([--enable-profile], |
114 | [build profiled library @<:@default=no@:>@]), | |
6b7f6183 | 115 | [profile=$enableval], |
11bf311e | 116 | [profile=no]) |
6b7f6183 | 117 | AC_ARG_ENABLE([versioning], |
77e8bddf AS |
118 | AC_HELP_STRING([--disable-versioning], |
119 | [do not include versioning information in the library objects @<:@default=yes if supported@:>@]), | |
6b7f6183 RM |
120 | [enable_versioning=$enableval], |
121 | [enable_versioning=yes]) | |
122 | ||
123 | AC_ARG_ENABLE([oldest-abi], | |
77e8bddf AS |
124 | AC_HELP_STRING([--enable-oldest-abi=ABI], |
125 | [configure the oldest ABI supported @<:@e.g. 2.2@:>@ @<:@default=glibc default@:>@]), | |
6b7f6183 RM |
126 | [oldest_abi=$enableval], |
127 | [oldest_abi=no]) | |
62ab42d6 UD |
128 | if test "$oldest_abi" = yes || test "$oldest_abi" = no; then |
129 | oldest_abi=default | |
130 | else | |
131 | AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi") | |
132 | fi | |
133 | AC_SUBST(oldest_abi) | |
134 | ||
35f1e827 UD |
135 | AC_ARG_ENABLE([stackguard-randomization], |
136 | AC_HELP_STRING([--enable-stackguard-randomization], | |
137 | [initialize __stack_chk_guard canary with a random number at program start]), | |
138 | [enable_stackguard_randomize=$enableval], | |
139 | [enable_stackguard_randomize=no]) | |
140 | if test "$enable_stackguard_randomize" = yes; then | |
141 | AC_DEFINE(ENABLE_STACKGUARD_RANDOMIZE) | |
142 | fi | |
143 | ||
6b3a2224 | 144 | dnl Generic infrastructure for drop-in additions to libc. |
6b7f6183 | 145 | AC_ARG_ENABLE([add-ons], |
77e8bddf AS |
146 | AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], |
147 | [configure and build add-ons in DIR1,DIR2,... | |
148 | search for add-ons if no parameter given]), | |
e0a3ed4f | 149 | , [enable_add_ons=yes]) |
61952351 | 150 | |
6b7f6183 | 151 | AC_ARG_ENABLE([hidden-plt], |
77e8bddf AS |
152 | AC_HELP_STRING([--disable-hidden-plt], |
153 | [do not hide internal function calls to avoid PLT]), | |
6b7f6183 RM |
154 | [hidden=$enableval], |
155 | [hidden=yes]) | |
749a9a4f RM |
156 | if test "x$hidden" = xno; then |
157 | AC_DEFINE(NO_HIDDEN) | |
158 | fi | |
159 | ||
4df8c11d UD |
160 | AC_ARG_ENABLE([bind-now], |
161 | AC_HELP_STRING([--enable-bind-now], | |
162 | [disable lazy relocations in DSOs]), | |
163 | [bindnow=$enableval], | |
164 | [bindnow=no]) | |
165 | AC_SUBST(bindnow) | |
166 | ||
5107cf1d UD |
167 | dnl On some platforms we cannot use dynamic loading. We must provide |
168 | dnl static NSS modules. | |
6b7f6183 | 169 | AC_ARG_ENABLE([static-nss], |
77e8bddf AS |
170 | AC_HELP_STRING([--enable-static-nss], |
171 | [build static NSS modules @<:@default=no@:>@]), | |
6b7f6183 RM |
172 | [static_nss=$enableval], |
173 | [static_nss=no]) | |
834cef7c UD |
174 | dnl Enable static NSS also if we build no shared objects. |
175 | if test x"$static_nss" = xyes || test x"$shared" = xno; then | |
3172f58f | 176 | static_nss=yes |
5107cf1d UD |
177 | AC_DEFINE(DO_STATIC_NSS) |
178 | fi | |
179 | ||
6b7f6183 | 180 | AC_ARG_ENABLE([force-install], |
77e8bddf AS |
181 | AC_HELP_STRING([--disable-force-install], |
182 | [don't force installation of files from this package, even if they are older than the installed files]), | |
6b7f6183 RM |
183 | [force_install=$enableval], |
184 | [force_install=yes]) | |
73237de3 UD |
185 | AC_SUBST(force_install) |
186 | ||
958f238f UD |
187 | dnl On some platforms we allow dropping compatibility with all kernel |
188 | dnl versions. | |
6b7f6183 | 189 | AC_ARG_ENABLE([kernel], |
77e8bddf AS |
190 | AC_HELP_STRING([--enable-kernel=VERSION], |
191 | [compile for compatibility with kernel not older than VERSION]), | |
6b7f6183 RM |
192 | [minimum_kernel=$enableval], |
193 | []) | |
86cfe82d UD |
194 | dnl Prevent unreasonable values. |
195 | if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then | |
196 | # Better nothing than this. | |
197 | minimum_kernel="" | |
269e369f UD |
198 | else |
199 | if test "$minimum_kernel" = current; then | |
200 | minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel= | |
201 | fi | |
86cfe82d | 202 | fi |
958f238f | 203 | |
6cc7d725 UD |
204 | dnl For the development we sometimes want gcc to issue even more warnings. |
205 | dnl This is not the default since many of the extra warnings are not | |
206 | dnl appropriate. | |
6b7f6183 RM |
207 | AC_ARG_ENABLE([all-warnings], |
208 | AC_HELP_STRING([--enable-all-warnings], | |
77e8bddf | 209 | [enable all useful warnings gcc can issue]), |
6b7f6183 RM |
210 | [all_warnings=$enableval], |
211 | []) | |
6cc7d725 UD |
212 | AC_SUBST(all_warnings) |
213 | ||
425ce2ed UD |
214 | AC_ARG_ENABLE([multi-arch], |
215 | AC_HELP_STRING([--enable-multi-arch], | |
216 | [enable single DSO with optimizations for multiple architectures]), | |
217 | [multi_arch=$enableval], | |
6f89d2f3 | 218 | [multi_arch=default]) |
425ce2ed | 219 | |
ff886b82 UD |
220 | AC_ARG_ENABLE([nss-crypt], |
221 | AC_HELP_STRING([--enable-nss-crypt], | |
222 | [enable libcrypt to use nss]), | |
223 | [nss_crypt=$enableval], | |
224 | [nss_crypt=no]) | |
225 | if test x$nss_crypt = xyes; then | |
226 | nss_includes=-I$(nss-config --includedir 2>/dev/null) | |
227 | if test $? -ne 0; then | |
228 | AC_MSG_ERROR([cannot find include directory with nss-config]) | |
229 | fi | |
230 | old_CFLAGS="$CFLAGS" | |
231 | CFLAGS="$CFLAGS $nss_includes" | |
b68e08db | 232 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; |
ff886b82 UD |
233 | #include <hasht.h> |
234 | #include <nsslowhash.h> | |
b68e08db | 235 | void f (void) { NSSLOW_Init (); }])], |
ff886b82 UD |
236 | libc_cv_nss_crypt=yes, |
237 | AC_MSG_ERROR([ | |
238 | cannot find NSS headers with lowlevel hash function interfaces])) | |
239 | old_LIBS="$LIBS" | |
240 | LIBS="$LIBS -lfreebl3" | |
241 | AC_LINK_IFELSE([AC_LANG_PROGRAM([typedef int PRBool; | |
242 | #include <hasht.h> | |
243 | #include <nsslowhash.h>], | |
244 | [NSSLOW_Init();])], | |
245 | libc_cv_nss_crypt=yes, | |
246 | AC_MSG_ERROR([ | |
247 | cannot link program using lowlevel NSS hash functions])) | |
248 | CFLAGS="$old_CFLAGS" | |
249 | LIBS="$old_LIBS" | |
250 | else | |
251 | libc_cv_nss_crypt=no | |
252 | fi | |
253 | AC_SUBST(libc_cv_nss_crypt) | |
254 | ||
021db4be AJ |
255 | AC_ARG_ENABLE([obsolete-rpc], |
256 | AC_HELP_STRING([--enable-obsolete-rpc], | |
257 | [build and install the obsolete RPC code for link-time usage]), | |
258 | [link_obsolete_rpc=$enableval], | |
259 | [link_obsolete_rpc=no]) | |
260 | AC_SUBST(link_obsolete_rpc) | |
261 | ||
262 | if test "$link_obsolete_rpc" = yes; then | |
263 | AC_DEFINE(LINK_OBSOLETE_RPC) | |
264 | fi | |
265 | ||
8a523922 UD |
266 | # The way shlib-versions is used to generate soversions.mk uses a |
267 | # fairly simplistic model for name recognition that can't distinguish | |
268 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
269 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
270 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
271 | case "$host_os" in | |
272 | linux*) | |
273 | ;; | |
274 | gnu*) | |
275 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
276 | ;; | |
277 | esac | |
278 | ||
28f540f4 RM |
279 | # We keep the original values in `$config_*' and never modify them, so we |
280 | # can write them unchanged into config.make. Everything else uses | |
281 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
282 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
283 | ||
2f64b655 UD |
284 | # Don't allow vendor == "unknown" |
285 | test "$config_vendor" = unknown && config_vendor= | |
286 | config_os="`echo $config_os | sed 's/^unknown-//'`" | |
287 | ||
a2fe9c76 | 288 | # Some configurations imply other options. |
0269750c | 289 | elf=yes |
a2fe9c76 | 290 | |
8f73811b RM |
291 | # The configure fragment of an add-on port can modify these to supplement |
292 | # or override the table in the case statement below. No fragment should | |
293 | # ever change the config_* variables, however. | |
28f540f4 RM |
294 | machine=$config_machine |
295 | vendor=$config_vendor | |
296 | os=$config_os | |
b22d21b3 | 297 | base_os='' |
28f540f4 | 298 | |
a808d541 UD |
299 | # config.guess on some IBM machines says `rs6000' instead of `powerpc'. |
300 | # Unify this here. | |
301 | if test "$machine" = rs6000; then | |
302 | machine="powerpc" | |
303 | fi | |
304 | ||
f4b07664 RM |
305 | # Braindead PowerPC box with absolutely no FPU. |
306 | case "$machine-$host_os" in | |
307 | powerpc*-*soft) | |
308 | with_fp=no | |
309 | ;; | |
310 | esac | |
311 | ||
2ceaa76a RM |
312 | submachine= |
313 | AC_ARG_WITH([cpu], | |
314 | AS_HELP_STRING([--with-cpu=CPU], [select code for CPU variant]), | |
315 | [dnl | |
316 | case "$withval" in | |
317 | yes|'') AC_MSG_ERROR([--with-cpu requires an argument]) ;; | |
318 | no) ;; | |
319 | *) submachine="$withval" ;; | |
320 | esac | |
321 | ]) | |
322 | ||
10a803e0 RM |
323 | dnl Let sysdeps/*/preconfigure act here, like they can in add-ons. |
324 | LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) | |
325 | ||
e0a3ed4f | 326 | # An add-on can set this when it wants to disable the sanity check below. |
8f73811b RM |
327 | libc_config_ok=no |
328 | ||
329 | dnl Having this here, though empty, makes sure that if add-ons' fragments | |
330 | dnl do AC_CONFIG_SUBDIRS([some-dir]), which just sets $subdirs, then | |
331 | dnl our AC_OUTPUT will actually use it. | |
332 | AC_CONFIG_SUBDIRS() | |
333 | ||
e0a3ed4f RM |
334 | case "$enable_add_ons" in |
335 | ''|no) add_ons= ;; | |
336 | yes|'*') | |
337 | add_ons=`cd $srcdir && ls -d 2> /dev/null */configure */sysdeps | | |
338 | sed 's@/[[^/]]*$@@' | sort | uniq` | |
339 | add_ons_automatic=yes | |
340 | ;; | |
341 | *) add_ons=`echo "$enable_add_ons" | sed 's/,/ /g'` | |
342 | add_ons_automatic=no ;; | |
343 | esac | |
344 | ||
345 | configured_add_ons= | |
8f73811b RM |
346 | add_ons_sfx= |
347 | add_ons_pfx= | |
348 | if test x"$add_ons" != x; then | |
349 | for f in $add_ons; do | |
350 | # Some sanity checks | |
351 | case "$f" in | |
352 | crypt) | |
353 | AC_MSG_ERROR([ | |
354 | *** It seems that you're using an old \`crypt' add-on. crypt is now | |
355 | *** part of glibc and using the old add-on will not work with this | |
356 | *** release. Start again with fresh sources and without the old | |
357 | *** \`crypt' add-on.]) | |
358 | ;; | |
359 | localedata) | |
360 | AC_MSG_ERROR([ | |
361 | *** It seems that you're using an old \`localedata' add-on. localedata | |
362 | *** is now part of glibc and using the old add-on will not work with | |
363 | *** this release. Start again with fresh sources and without the old | |
364 | *** \`localedata' add-on.]) | |
365 | ;; | |
366 | esac | |
8f73811b RM |
367 | done |
368 | ||
9382fcee | 369 | # Now source each add-on's configure fragment. |
c80e931a RM |
370 | # The fragments can use $srcdir/$libc_add_on to find themselves, |
371 | # and test $add_ons_automatic to see if they were explicitly requested. | |
372 | # A fragment can clear (or even change) $libc_add_on to affect | |
373 | # whether it goes into the list to be actually used in the build. | |
374 | use_add_ons= | |
9382fcee | 375 | for libc_add_on in $add_ons; do |
e0a3ed4f RM |
376 | # Test whether such a directory really exists. |
377 | # It can be absolute, or relative to $srcdir, or relative to the build dir. | |
378 | case "$libc_add_on" in | |
379 | /*) | |
380 | libc_add_on_srcdir=$libc_add_on | |
381 | ;; | |
382 | *) | |
383 | test -d "$srcdir/$libc_add_on" || { | |
77e8bddf | 384 | if test -d "$libc_add_on"; then |
e0a3ed4f RM |
385 | libc_add_on="`pwd`/$libc_add_on" |
386 | else | |
387 | AC_MSG_ERROR(add-on directory \"$libc_add_on\" does not exist) | |
388 | fi | |
389 | } | |
390 | libc_add_on_srcdir=$srcdir/$libc_add_on | |
391 | ;; | |
392 | esac | |
393 | ||
394 | libc_add_on_frag=$libc_add_on_srcdir/configure | |
395 | libc_add_on_canonical= | |
7967983f | 396 | libc_add_on_config_subdirs= |
e0a3ed4f RM |
397 | if test -r "$libc_add_on_frag"; then |
398 | AC_MSG_NOTICE(running configure fragment for add-on $libc_add_on) | |
399 | libc_add_on_canonical=unknown | |
400 | libc_add_on_subdirs= | |
401 | . "$libc_add_on_frag" | |
402 | test -z "$libc_add_on" || { | |
77e8bddf | 403 | configured_add_ons="$configured_add_ons $libc_add_on" |
e0a3ed4f RM |
404 | if test "x$libc_add_on_canonical" = xunknown; then |
405 | AC_MSG_ERROR(fragment must set \$libc_add_on_canonical) | |
406 | fi | |
407 | for d in $libc_add_on_subdirs; do | |
408 | case "$libc_add_on" in | |
409 | /*) subdir_srcdir="$libc_add_on" ;; | |
410 | *) subdir_srcdir="\$(..)$libc_add_on" ;; | |
411 | esac | |
412 | case "$d" in | |
413 | .) | |
414 | d="${libc_add_on_canonical:-$libc_add_on}" | |
415 | ;; | |
416 | /*) | |
417 | subdir_srcdir="$d" | |
418 | ;; | |
419 | *) | |
420 | subdir_srcdir="$subdir_srcdir/$d" | |
421 | ;; | |
422 | esac | |
423 | d=`echo "$d" | sed 's@/*$@@;s@^.*/@@'` | |
424 | add_on_subdirs="$add_on_subdirs $d" | |
425 | test "$subdir_srcdir" = "\$(..)$d" || config_vars="$config_vars | |
426 | $d-srcdir = $subdir_srcdir" | |
427 | done | |
7967983f RM |
428 | for d in $libc_add_on_config_subdirs; do |
429 | case "$d" in | |
430 | /*) AC_MSG_ERROR(dnl | |
431 | fragment uses absolute path in \$libc_add_on_config_subdirs) ;; | |
432 | esac | |
433 | if test ! -d "$libc_add_on_srcdir/$d"; then | |
434 | AC_MSG_ERROR(fragment wants to configure missing directory $d) | |
435 | fi | |
436 | case "$libc_add_on" in | |
437 | /*) AC_MSG_ERROR(dnl | |
438 | relative path required for add-on using \$libc_add_on_config_subdirs) ;; | |
439 | esac | |
440 | subdirs="$subdirs $libc_add_on/$d" | |
441 | done | |
e0a3ed4f | 442 | } |
8f73811b | 443 | fi |
619f9448 | 444 | if test -n "$libc_add_on"; then |
10a803e0 | 445 | LIBC_PRECONFIGURE([$libc_add_on_srcdir], [add-on $libc_add_on for]) |
619f9448 RM |
446 | use_add_ons="$use_add_ons $libc_add_on" |
447 | add_ons_pfx="$add_ons_pfx $libc_add_on/" | |
e0a3ed4f RM |
448 | test -z "$libc_add_on_canonical" || |
449 | add_ons_sfx="$add_ons_sfx /$libc_add_on_canonical" | |
619f9448 | 450 | fi |
8f73811b | 451 | done |
c80e931a RM |
452 | # Use echo to strip excess whitespace. |
453 | add_ons="`echo $use_add_ons`" | |
8f73811b RM |
454 | fi |
455 | AC_SUBST(add_ons) | |
e0a3ed4f | 456 | AC_SUBST(add_on_subdirs) |
8f73811b RM |
457 | |
458 | ||
bdc8eb03 UD |
459 | ### |
460 | ### I put this here to prevent those annoying emails from people who cannot | |
461 | ### read and try to compile glibc on unsupported platforms. --drepper | |
462 | ### | |
463 | ### By using the undocumented --enable-hacker-mode option for configure | |
464 | ### one can skip this test to make the configuration not fail for unsupported | |
465 | ### platforms. | |
466 | ### | |
8f73811b | 467 | if test -z "$enable_hacker_mode" && test x"$libc_config_ok" != xyes; then |
bdc8eb03 | 468 | case "$machine-$host_os" in |
2ce4f015 | 469 | *-linux* | *-gnu*) |
bdc8eb03 UD |
470 | ;; |
471 | *) | |
472 | echo "*** The GNU C library is currently not available for this platform." | |
473 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
474 | echo "*** might never happen. So, if you have interest to see glibc on" | |
475 | echo "*** this platform visit" | |
476 | echo "*** http://www.gnu.org/software/libc/porting.html" | |
477 | echo "*** and join the group of porters" | |
478 | exit 1 | |
479 | ;; | |
480 | esac | |
481 | fi | |
482 | ||
28f540f4 RM |
483 | dnl We need to use [ and ] for other purposes for a while now. |
484 | changequote(,)dnl | |
485 | # Expand the configuration machine name into a subdirectory by architecture | |
8f73811b RM |
486 | # type and particular chip. If an add-on configure fragment already set |
487 | # base_machine, we don't change it. | |
488 | test -n "$base_machine" || case "$machine" in | |
0b755dc4 | 489 | i[34567]86) base_machine=i386 machine=i386/$machine ;; |
92b27c74 UD |
490 | powerpc) base_machine=powerpc machine=powerpc/powerpc32 ;; |
491 | powerpc64) base_machine=powerpc machine=powerpc/powerpc64 ;; | |
136d4332 UD |
492 | s390) base_machine=s390 machine=s390/s390-32 ;; |
493 | s390x) base_machine=s390 machine=s390/s390-64 ;; | |
88615235 UD |
494 | sh3*) base_machine=sh machine=sh/sh3 ;; |
495 | sh4*) base_machine=sh machine=sh/sh4 ;; | |
ca34d7a7 UD |
496 | sparc | sparcv[67]) |
497 | base_machine=sparc machine=sparc/sparc32 ;; | |
498 | sparcv8 | supersparc | hypersparc) | |
499 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
ae6b8730 RH |
500 | sparcv8plus | sparcv8plusa | sparcv9) |
501 | base_machine=sparc machine=sparc/sparc32/sparcv9 ;; | |
bb769ab6 | 502 | sparcv8plusb | sparcv9b) |
10c6e709 | 503 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9b ;; |
2d73656b RM |
504 | sparcv9v) |
505 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v ;; | |
46ae8850 JJ |
506 | sparcv9v2) |
507 | base_machine=sparc machine=sparc/sparc32/sparcv9/sparcv9v2 ;; | |
b1ecbed2 | 508 | sparc64) |
ca34d7a7 | 509 | base_machine=sparc machine=sparc/sparc64 ;; |
b1ecbed2 | 510 | sparc64b) |
bb769ab6 | 511 | base_machine=sparc machine=sparc/sparc64/sparcv9b ;; |
2d73656b RM |
512 | sparc64v) |
513 | base_machine=sparc machine=sparc/sparc64/sparcv9v ;; | |
46ae8850 JJ |
514 | sparc64v2) |
515 | base_machine=sparc machine=sparc/sparc64/sparcv9v2 ;; | |
3a2832a0 | 516 | *) base_machine=$machine ;; |
28f540f4 | 517 | esac |
f0523145 RM |
518 | changequote([,])dnl |
519 | AC_SUBST(base_machine) | |
28f540f4 | 520 | |
dfd2257a UD |
521 | if test "$base_machine" = "i386"; then |
522 | AC_DEFINE(USE_REGPARMS) | |
523 | fi | |
524 | ||
84b9230c MF |
525 | # For the multi-arch option we need support in the assembler. |
526 | AC_CACHE_CHECK([for assembler gnu_indirect_function symbol type support], | |
77e8bddf | 527 | libc_cv_asm_gnu_indirect_function, [dnl |
84b9230c MF |
528 | cat > conftest.s <<EOF |
529 | .type foo,%gnu_indirect_function | |
530 | EOF | |
531 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; | |
532 | then | |
533 | libc_cv_asm_gnu_indirect_function=yes | |
534 | else | |
535 | libc_cv_asm_gnu_indirect_function=no | |
536 | fi | |
537 | rm -f conftest*]) | |
538 | ||
539 | AC_MSG_CHECKING(whether .text pseudo-op must be used) | |
540 | AC_CACHE_VAL(libc_cv_dot_text, [dnl | |
541 | cat > conftest.s <<EOF | |
542 | .text | |
543 | EOF | |
544 | libc_cv_dot_text= | |
545 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
546 | libc_cv_dot_text=.text | |
547 | fi | |
548 | rm -f conftest*]) | |
549 | if test -z "$libc_cv_dot_text"; then | |
550 | AC_MSG_RESULT(no) | |
551 | else | |
552 | AC_MSG_RESULT(yes) | |
553 | fi | |
554 | ||
555 | AC_CACHE_CHECK(for assembler global-symbol directive, | |
556 | libc_cv_asm_global_directive, [dnl | |
557 | libc_cv_asm_global_directive=UNKNOWN | |
558 | for ac_globl in .globl .global .EXPORT; do | |
559 | cat > conftest.s <<EOF | |
560 | ${libc_cv_dot_text} | |
561 | ${ac_globl} foo | |
562 | foo: | |
563 | EOF | |
564 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
565 | libc_cv_asm_global_directive=${ac_globl} | |
566 | fi | |
567 | rm -f conftest* | |
568 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
569 | done]) | |
570 | if test $libc_cv_asm_global_directive = UNKNOWN; then | |
571 | AC_MSG_ERROR(cannot determine asm global directive) | |
572 | else | |
573 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
574 | fi | |
575 | ||
576 | AC_CACHE_CHECK(for assembler .type directive prefix, | |
577 | libc_cv_asm_type_prefix, [dnl | |
578 | libc_cv_asm_type_prefix=no | |
579 | for ac_try_prefix in '@' '%' '#'; do | |
580 | cat > conftest.s <<EOF | |
581 | ${libc_cv_dot_text} | |
582 | ${libc_cv_asm_global_directive} foo | |
583 | .type foo, ${ac_try_prefix}object | |
584 | .size foo, 1 | |
585 | foo: | |
586 | .byte 1 | |
587 | EOF | |
588 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
589 | libc_cv_asm_type_prefix=${ac_try_prefix} | |
590 | fi | |
591 | rm -f conftest* | |
592 | test "x$libc_cv_asm_type_prefix" != xno && break | |
593 | done]) | |
594 | if test "x$libc_cv_asm_type_prefix" != xno; then | |
595 | AC_DEFINE_UNQUOTED(ASM_TYPE_DIRECTIVE_PREFIX, ${libc_cv_asm_type_prefix}) | |
596 | fi | |
597 | ||
6b1d1d46 | 598 | if test x"$libc_cv_asm_gnu_indirect_function" != xyes -o x"$libc_cv_asm_type_prefix" = xno; then |
84b9230c MF |
599 | if test x"$multi_arch" = xyes; then |
600 | AC_MSG_ERROR([--enable-multi-arch support requires assembler and linker support]) | |
601 | else | |
602 | multi_arch=no | |
603 | fi | |
604 | fi | |
605 | if test x"$multi_arch" != xno; then | |
606 | multi_arch_d=/multiarch | |
607 | fi | |
608 | ||
f0523145 | 609 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 610 | # This can take a while to compute. |
f0523145 | 611 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 612 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
613 | dnl We need to use [ and ] for other purposes for a while now. |
614 | changequote(,)dnl | |
28f540f4 RM |
615 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
616 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
617 | ||
b22d21b3 | 618 | test "x$base_os" != x || case "$os" in |
28f540f4 RM |
619 | gnu*) |
620 | base_os=mach/hurd ;; | |
2ce4f015 | 621 | linux*) |
28f540f4 | 622 | base_os=unix/sysv ;; |
28f540f4 RM |
623 | esac |
624 | ||
625 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
626 | tail=$os | |
627 | ostry=$os | |
628 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
629 | ostry="$ostry /$o" | |
630 | tail=$o | |
75914335 | 631 | done |
28f540f4 RM |
632 | o=`echo $tail | sed 's/[0-9]*$//'` |
633 | if test $o != $tail; then | |
634 | ostry="$ostry /$o" | |
635 | fi | |
ec4b0518 UD |
636 | # For linux-gnu, try linux-gnu, then linux. |
637 | o=`echo $tail | sed 's/-.*$//'` | |
638 | if test $o != $tail; then | |
639 | ostry="$ostry /$o" | |
640 | fi | |
28f540f4 RM |
641 | |
642 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
643 | base= | |
644 | tail=$base_os | |
645 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
646 | set $b | |
647 | base="$base /$1" | |
648 | tail="$2" | |
649 | done | |
650 | ||
ae6b8730 | 651 | # For sparc/sparc32, try sparc/sparc32 and then sparc. |
28f540f4 | 652 | mach= |
2ceaa76a | 653 | tail=$machine${submachine:+/$submachine} |
28f540f4 RM |
654 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do |
655 | set $m | |
10ceac89 RM |
656 | # Prepend the machine's FPU directory unless --without-fp. |
657 | if test "$with_fp" = yes; then | |
658 | mach="$mach /$1/fpu" | |
f4b07664 RM |
659 | else |
660 | mach="$mach /$1/nofpu" | |
82d00cab | 661 | fi |
28f540f4 RM |
662 | mach="$mach /$1" |
663 | tail="$2" | |
664 | done | |
665 | ||
666 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
667 | changequote([,])dnl | |
668 | ||
669 | # Find what sysdep directories exist. | |
e0a3ed4f | 670 | sysnames_add_ons= |
28f540f4 | 671 | sysnames= |
4b69abad RM |
672 | for b in $base ''; do |
673 | for m0 in $mach ''; do | |
674 | for v in /$vendor ''; do | |
675 | test "$v" = / && continue | |
676 | for o in /$ostry ''; do | |
677 | test "$o" = / && continue | |
425ce2ed | 678 | for m in $multi_arch_d $mach ''; do |
4b69abad | 679 | for d in $add_ons_pfx ''; do |
8f73811b | 680 | for a in $add_ons_sfx ''; do |
e0a3ed4f | 681 | if test -n "$m0$m0sub$b$v$o$m$msub"; then |
77e8bddf AS |
682 | try_srcdir="${srcdir}/" |
683 | case "$d" in | |
e0a3ed4f RM |
684 | /*) try_srcdir= ;; |
685 | esac | |
4b69abad | 686 | try="${d}sysdeps$m0$m0sub$b$v$o$m$msub$a" |
8f73811b RM |
687 | test -n "$enable_debug_configure" && |
688 | echo "$0 [DEBUG]: try $try" >&2 | |
e0a3ed4f | 689 | if test -d "$try_srcdir$try"; then |
8f73811b RM |
690 | sysnames="$sysnames $try" |
691 | { test -n "$o" || test -n "$b"; } && os_used=t | |
692 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
4b69abad RM |
693 | case x${m0:-$m} in |
694 | x*/$submachine) submachine_used=t ;; | |
695 | esac | |
e0a3ed4f RM |
696 | if test -n "$d"; then |
697 | case "$sysnames_add_ons" in | |
698 | *" $d "*) ;; | |
699 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
700 | esac | |
701 | fi | |
8f73811b | 702 | fi |
57ba7bb4 | 703 | fi |
8f73811b | 704 | done |
57ba7bb4 | 705 | done |
28f540f4 RM |
706 | done |
707 | done | |
708 | done | |
709 | done | |
4b69abad | 710 | done |
28f540f4 | 711 | |
6f89d2f3 L |
712 | # If the assembler supports gnu_indirect_function symbol type and the |
713 | # architecture supports multi-arch, we enable multi-arch by default. | |
84b9230c MF |
714 | case $sysnames_add_ons$sysnames in |
715 | *"$multi_arch_d"*) | |
716 | ;; | |
717 | *) | |
77e8bddf | 718 | test x"$multi_arch" = xdefault && multi_arch=no |
84b9230c MF |
719 | ;; |
720 | esac | |
721 | if test x"$multi_arch" != xno; then | |
6f89d2f3 L |
722 | AC_DEFINE(USE_MULTIARCH) |
723 | fi | |
724 | AC_SUBST(multi_arch) | |
725 | ||
28f540f4 RM |
726 | if test -z "$os_used" && test "$os" != none; then |
727 | AC_MSG_ERROR(Operating system $os is not supported.) | |
728 | fi | |
729 | if test -z "$machine_used" && test "$machine" != none; then | |
730 | AC_MSG_ERROR(The $machine is not supported.) | |
731 | fi | |
2ceaa76a RM |
732 | if test -z "$submachine_used" && test -n "$submachine"; then |
733 | AC_MSG_ERROR(The $submachine subspecies of $host_cpu is not supported.) | |
734 | fi | |
735 | AC_SUBST(submachine) | |
28f540f4 RM |
736 | |
737 | # We have now validated the configuration. | |
738 | ||
28f540f4 RM |
739 | # Expand the list of system names into a full list of directories |
740 | # from each element's parent name and Implies file (if present). | |
741 | set $sysnames | |
e50ec9f9 | 742 | names= |
28f540f4 RM |
743 | while test $# -gt 0; do |
744 | name=$1 | |
745 | shift | |
746 | ||
e50ec9f9 | 747 | case " $names " in *" $name "*) |
f332db02 RM |
748 | # Already in the list. |
749 | continue | |
e50ec9f9 | 750 | esac |
f332db02 RM |
751 | |
752 | # Report each name as we discover it, so there is no long pause in output. | |
0b4ee387 | 753 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD |
f332db02 | 754 | |
57ba7bb4 UD |
755 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
756 | ||
757 | case $name in | |
758 | /*) xsrcdir= ;; | |
759 | *) xsrcdir=$srcdir/ ;; | |
760 | esac | |
761 | test -n "$enable_debug_configure" && | |
762 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
763 | ||
ba75122d RM |
764 | for implies_file in Implies Implies-before Implies-after; do |
765 | implies_type=`echo $implies_file | sed s/-/_/` | |
766 | eval ${implies_type}= | |
767 | if test -f $xsrcdir$name/$implies_file; then | |
768 | # Collect more names from the `Implies' file (removing comments). | |
769 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/$implies_file`" | |
770 | for x in $implied_candidate; do | |
771 | found=no | |
772 | if test -d $xsrcdir$name_base/$x; then | |
773 | eval "${implies_type}=\"\$${implies_type} \$name_base/\$x\"" | |
636ccfc8 | 774 | found=yes |
ba75122d RM |
775 | fi |
776 | for d in $add_ons_pfx ''; do | |
777 | try="${d}sysdeps/$x" | |
778 | case $d in | |
779 | /*) try_srcdir= ;; | |
780 | *) try_srcdir=$srcdir/ ;; | |
e0a3ed4f | 781 | esac |
ba75122d RM |
782 | test -n "$enable_debug_configure" && |
783 | echo "[DEBUG]: $name $implies_file $x try($d) {$try_srcdir}$try" >&2 | |
784 | if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; | |
785 | then | |
786 | eval "${implies_type}=\"\$${implies_type} \$try\"" | |
787 | found=yes | |
788 | case "$sysnames_add_ons" in | |
789 | *" $d "*) ;; | |
790 | *|'') sysnames_add_ons="$sysnames_add_ons $d" ;; | |
791 | esac | |
792 | fi | |
793 | done | |
794 | if test $found = no; then | |
795 | AC_MSG_WARN($name/$implies_file specifies nonexistent $x) | |
636ccfc8 UD |
796 | fi |
797 | done | |
ba75122d RM |
798 | fi |
799 | done | |
28f540f4 RM |
800 | |
801 | # Add NAME to the list of names. | |
802 | names="$names $name" | |
803 | ||
804 | # Find the parent of NAME, using the empty string if it has none. | |
805 | changequote(,)dnl | |
57ba7bb4 | 806 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
807 | changequote([,])dnl |
808 | ||
ba75122d RM |
809 | test -n "$enable_debug_configure" && |
810 | echo "[DEBUG]: $name Implies='$Implies' rest='$*' parent='$parent' \ | |
811 | Implies_before='$Implies_after' Implies_after='$Implies_after'" >&2 | |
812 | ||
28f540f4 RM |
813 | # Add the names implied by NAME, and NAME's parent (if it has one), to |
814 | # the list of names to be processed (the argument list). We prepend the | |
815 | # implied names to the list and append the parent. We want implied | |
816 | # directories to come before further directories inferred from the | |
817 | # configuration components; this ensures that for sysv4, unix/common | |
818 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
819 | # after sysv4). | |
ba75122d | 820 | sysnames="`echo $Implies $* $Implies_before $parent $Implies_after`" |
28f540f4 RM |
821 | test -n "$sysnames" && set $sysnames |
822 | done | |
823 | ||
824 | # Add the default directories. | |
83ef87ba | 825 | default_sysnames="sysdeps/generic" |
ecdc196c | 826 | sysnames="$names $default_sysnames" |
f332db02 RM |
827 | AC_SUBST(sysnames) |
828 | # The other names were emitted during the scan. | |
ecdc196c | 829 | AC_MSG_RESULT($default_sysnames) |
28f540f4 | 830 | |
e0a3ed4f RM |
831 | # Collect the list of add-ons that supply partial sysdeps trees. |
832 | sysdeps_add_ons= | |
833 | for add_on in $add_ons; do | |
834 | case "$add_on" in | |
835 | /*) xsrcdir= ;; | |
836 | *) xsrcdir="$srcdir/" ;; | |
837 | esac | |
838 | ||
839 | test -d "$xsrcdir$add_on/sysdeps" || { | |
840 | case "$configured_add_ons " in | |
841 | *" $add_on "*) ;; | |
842 | *|'') | |
843 | AC_MSG_ERROR(add-on $add_on has no configure fragment or sysdeps tree) | |
844 | ;; | |
845 | esac | |
846 | continue | |
847 | } | |
848 | ||
849 | sysdeps_add_ons="$sysdeps_add_ons $add_on" | |
850 | case "$sysnames_add_ons" in | |
851 | *" $add_on/ "*) ;; | |
852 | *|'') | |
853 | AC_MSG_WARN(add-on $add_on contributed no sysdeps directories) | |
854 | continue ;; | |
855 | esac | |
856 | ||
857 | found=no | |
858 | for d in $sysnames; do | |
859 | case "$d" in | |
860 | $add_on/sysdeps/*) ;; | |
861 | *) continue ;; | |
862 | esac | |
863 | (cd "$xsrcdir$d" && for f in *[[!~]]; do | |
864 | case "$f" in | |
865 | sys|bits) | |
866 | for ff in $f/*.h; do | |
867 | test -d "$ff" || { test -e "$ff" && exit 88; } | |
868 | done | |
869 | ;; | |
870 | *) | |
77e8bddf | 871 | test -d "$f" || { test -e "$f" && exit 88; } |
e0a3ed4f RM |
872 | ;; |
873 | esac | |
874 | done) | |
875 | if test $? -eq 88; then | |
876 | found=yes | |
877 | break | |
878 | fi | |
879 | done | |
880 | if test $found = no; then | |
881 | AC_MSG_WARN(add-on $add_on contributed no useful sysdeps directories) | |
882 | fi | |
883 | done | |
884 | AC_SUBST(sysdeps_add_ons) | |
885 | ||
f332db02 RM |
886 | |
887 | ### Locate tools. | |
28f540f4 | 888 | |
28f540f4 | 889 | AC_PROG_INSTALL |
2b80a372 | 890 | if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then |
28f540f4 | 891 | # The makefiles need to use a different form to find it in $srcdir. |
2b80a372 | 892 | INSTALL='\$(..)./scripts/install-sh -c' |
28f540f4 | 893 | fi |
0e3426bb | 894 | AC_PROG_LN_S |
ae828bc6 | 895 | |
4baa087a RM |
896 | LIBC_PROG_BINUTILS |
897 | AC_SUBST(MIG)dnl Needed by sysdeps/mach/configure.in | |
898 | ||
bec039bc | 899 | # Accept binutils 2.20 or newer. |
4baa087a RM |
900 | AC_CHECK_PROG_VER(AS, $AS, --version, |
901 | [GNU assembler.* \([0-9]*\.[0-9.]*\)], | |
bec039bc | 902 | [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 |
903 | AC_CHECK_PROG_VER(LD, $LD, --version, |
904 | [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], | |
bec039bc | 905 | [2.1[0-9][0-9]*|2.[2-9][0-9]*|[3-9].*|[1-9][0-9]*], LD=: critic_missing="$critic_missing ld") |
4baa087a | 906 | |
63bda0c1 | 907 | # These programs are version sensitive. |
3a12e572 | 908 | AC_CHECK_TOOL_PREFIX |
4bca4c17 | 909 | AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, |
0e7727f7 | 910 | [version \([egcygnustpi-]*[0-9.]*\)], [4.[3-9].* | 4.[1-9][0-9].* | [5-9].* ], |
90d1d40b | 911 | critic_missing="$critic_missing gcc") |
22e65f8f | 912 | AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, |
8fc1e2ca | 913 | [GNU Make[^0-9]*\([0-9][0-9.]*\)], |
6b4e880f | 914 | [3.79* | 3.[89]*], critic_missing="$critic_missing make") |
63bda0c1 | 915 | |
22e65f8f | 916 | AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, |
bdd421cc | 917 | [GNU gettext.* \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
918 | [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*], |
919 | MSGFMT=: aux_missing="$aux_missing msgfmt") | |
63bda0c1 | 920 | AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
8b7fb588 | 921 | [GNU texinfo.* \([0-9][0-9.]*\)], |
aefdff34 RM |
922 | [4.*], |
923 | MAKEINFO=: aux_missing="$aux_missing makeinfo") | |
d6a97a28 | 924 | AC_CHECK_PROG_VER(SED, sed, --version, |
aec103d3 | 925 | [GNU sed version \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
926 | [3.0[2-9]*|3.[1-9]*|[4-9]*], |
927 | SED=: aux_missing="$aux_missing sed") | |
63bda0c1 | 928 | |
d30cf5bb RM |
929 | AC_CHECK_TOOL(READELF, readelf, false) |
930 | ||
476e7d78 RM |
931 | AC_CHECK_PROGS(AUTOCONF, autoconf, no) |
932 | case "x$AUTOCONF" in | |
933 | xno|x|x:) AUTOCONF=no ;; | |
934 | *) | |
935 | AC_CACHE_CHECK(dnl | |
1400de2e | 936 | whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl |
476e7d78 RM |
937 | if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then |
938 | libc_cv_autoconf_works=yes | |
939 | else | |
940 | libc_cv_autoconf_works=no | |
941 | fi]) | |
942 | test $libc_cv_autoconf_works = yes || AUTOCONF=no | |
943 | ;; | |
944 | esac | |
92963737 | 945 | if test "x$AUTOCONF" = xno; then |
476e7d78 | 946 | aux_missing="$aux_missing autoconf" |
14519931 | 947 | fi |
1400de2e | 948 | |
32a448ed RM |
949 | test -n "$critic_missing" && AC_MSG_ERROR([ |
950 | *** These critical programs are missing or too old:$critic_missing | |
951 | *** Check the INSTALL file for required versions.]) | |
952 | ||
4bca4c17 | 953 | test -n "$aux_missing" && AC_MSG_WARN([ |
9c6fffc0 | 954 | *** These auxiliary programs are missing or incompatible versions:$aux_missing |
63bda0c1 UD |
955 | *** some features will be disabled. |
956 | *** Check the INSTALL file for required versions.]) | |
28f540f4 | 957 | |
dbe7a0f5 UD |
958 | # if using special system headers, find out the compiler's sekrit |
959 | # header directory and add that to the list. NOTE: Only does the right | |
960 | # thing on a system that doesn't need fixincludes. (Not presently a problem.) | |
961 | if test -n "$sysheaders"; then | |
67fbfa5c RM |
962 | SYSINCLUDES=-nostdinc |
963 | for d in include include-fixed; do | |
964 | i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" && | |
965 | SYSINCLUDES="$SYSINCLUDES -isystem $i" | |
966 | done | |
967 | SYSINCLUDES="$SYSINCLUDES \ | |
3d6ce23a | 968 | -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`" |
ef226fec | 969 | if test -n "$CXX"; then |
7872cfb0 | 970 | CXX_SYSINCLUDES= |
ef226fec RM |
971 | cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` && |
972 | cxxmachine=`$CXX -dumpmachine 2>&AS_MESSAGE_LOG_FD` && | |
7872cfb0 AS |
973 | for d in include "$cxxmachine/include"; do |
974 | i=../../../../$d/c++/$cxxversion | |
975 | cxxheaders=`$CXX -print-file-name="$i"` && | |
976 | test "x$cxxheaders" != x && test "x$i" != "x$cxxheaders" && | |
977 | CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders \ | |
ef226fec | 978 | -isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward" |
7872cfb0 | 979 | done |
ef226fec | 980 | fi |
dbe7a0f5 UD |
981 | fi |
982 | AC_SUBST(SYSINCLUDES) | |
ef226fec | 983 | AC_SUBST(CXX_SYSINCLUDES) |
dbe7a0f5 | 984 | |
3911660e UD |
985 | # Test if LD_LIBRARY_PATH contains the notation for the current directory |
986 | # since this would lead to problems installing/building glibc. | |
987 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
988 | # is true: | |
989 | # - one of the terminals (":" and ";") is the first or last sign | |
990 | # - two terminals occur directly after each other | |
991 | # - the path contains an element with a dot in it | |
992 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
993 | changequote(,)dnl | |
994 | case ${LD_LIBRARY_PATH} in | |
995 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
b3a86ae1 | 996 | ld_library_path_setting="contains current directory" |
3911660e UD |
997 | ;; |
998 | *) | |
999 | ld_library_path_setting="ok" | |
1000 | ;; | |
1001 | esac | |
1002 | changequote([,])dnl | |
1003 | AC_MSG_RESULT($ld_library_path_setting) | |
1004 | if test "$ld_library_path_setting" != "ok"; then | |
63bda0c1 UD |
1005 | AC_MSG_ERROR([ |
1006 | *** LD_LIBRARY_PATH shouldn't contain the current directory when | |
1007 | *** building glibc. Please change the environment variable | |
1008 | *** and run configure again.]) | |
3911660e | 1009 | fi |
8e31cf7e | 1010 | |
74bd2300 UD |
1011 | AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl |
1012 | if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then | |
1013 | libc_cv_gcc_static_libgcc= | |
1014 | else | |
1015 | libc_cv_gcc_static_libgcc=-static-libgcc | |
1016 | fi]) | |
1017 | AC_SUBST(libc_cv_gcc_static_libgcc) | |
1018 | ||
26f56c1c UD |
1019 | AC_PATH_PROG(BASH_SHELL, bash, no) |
1020 | if test "$BASH_SHELL" != no && | |
1021 | $BASH_SHELL -c 'test "$BASH_VERSINFO" \ | |
6973fc01 | 1022 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
1023 | libc_cv_have_bash2=yes |
1024 | else | |
1025 | libc_cv_have_bash2=no | |
1026 | fi | |
1027 | AC_SUBST(libc_cv_have_bash2) | |
1028 | ||
5290baf0 | 1029 | dnl We need a ksh compatible shell for tzselect. |
26f56c1c | 1030 | if test "$BASH_SHELL" = no; then |
5290baf0 UD |
1031 | AC_PATH_PROG(KSH, ksh, no) |
1032 | if test "$KSH" = no; then | |
1033 | libc_cv_have_ksh=no | |
1034 | else | |
1035 | libc_cv_have_ksh=yes | |
1036 | fi | |
1037 | else | |
26f56c1c | 1038 | KSH="$BASH_SHELL" |
5290baf0 UD |
1039 | AC_SUBST(KSH) |
1040 | libc_cv_have_ksh=yes | |
1041 | fi | |
1042 | AC_SUBST(libc_cv_have_ksh) | |
1043 | ||
5aa8ff62 | 1044 | AC_PROG_AWK |
c0016081 | 1045 | AC_PATH_PROG(PERL, perl, no) |
2fd5d029 RM |
1046 | if test "$PERL" != no && |
1047 | (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then | |
1048 | PERL=no | |
ecb06196 | 1049 | fi |
2f512715 AS |
1050 | AC_PATH_PROG(INSTALL_INFO, install-info, no, |
1051 | $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) | |
2de00372 UD |
1052 | AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin) |
1053 | ||
b8dc6a10 | 1054 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
1055 | AC_TRY_COMPILE(dnl |
1056 | [#define __need_size_t | |
1057 | #define __need_wchar_t | |
1058 | #include <stddef.h> | |
1059 | #define __need_NULL | |
1060 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
1061 | #ifdef offsetof | |
1062 | #error stddef.h ignored __need_* | |
1063 | #endif | |
1064 | if (&size == NULL || &wchar == NULL) abort ();], | |
77e8bddf AS |
1065 | libc_cv_friendly_stddef=yes, |
1066 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
1067 | if test $libc_cv_friendly_stddef = yes; then |
1068 | config_vars="$config_vars | |
1069 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
1070 | fi | |
1071 | ||
b8dc6a10 RM |
1072 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
1073 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
1074 | cat > conftest.S <<EOF |
1075 | #include "confdefs.h" | |
1076 | /* Nothing whatsoever. */ | |
1077 | EOF | |
3217788f | 1078 | if AC_TRY_COMMAND(${CC-cc} $CPPFLAGS $ASFLAGS -c conftest.S 1>&AS_MESSAGE_LOG_FD); then |
28f540f4 RM |
1079 | libc_cv_need_minus_P=no |
1080 | else | |
1081 | libc_cv_need_minus_P=yes | |
1082 | fi | |
1083 | rm -f conftest*]) | |
28f540f4 RM |
1084 | if test $libc_cv_need_minus_P = yes; then |
1085 | config_vars="$config_vars | |
1086 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
1087 | fi | |
1088 | ||
b8dc6a10 | 1089 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 1090 | cat > conftest.s <<EOF |
2293395f | 1091 | ${libc_cv_dot_text} |
ae1025be | 1092 | foo: |
df2a0c93 | 1093 | .set glibc_conftest_frobozz,foo |
9a70fcab | 1094 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 1095 | EOF |
df2a0c93 RM |
1096 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
1097 | # (but it doesn't work), so we must do a linking check to be sure. | |
1098 | cat > conftest1.c <<\EOF | |
1099 | extern int glibc_conftest_frobozz; | |
640f0119 | 1100 | void _start() { glibc_conftest_frobozz = 1; } |
df2a0c93 RM |
1101 | EOF |
1102 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
640f0119 | 1103 | -nostartfiles -nostdlib \ |
0b4ee387 | 1104 | -o conftest conftest.s conftest1.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
e215c478 RM |
1105 | libc_cv_asm_set_directive=yes |
1106 | else | |
1107 | libc_cv_asm_set_directive=no | |
1108 | fi | |
65b3cbcb | 1109 | rm -f conftest*]) |
e215c478 RM |
1110 | if test $libc_cv_asm_set_directive = yes; then |
1111 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
1112 | fi | |
1113 | ||
415ac3df UD |
1114 | AC_CACHE_CHECK(for assembler gnu_unique_object symbol type, |
1115 | libc_cv_asm_unique_object, [dnl | |
1116 | cat > conftest.s <<EOF | |
1117 | ${libc_cv_dot_text} | |
1118 | _sym: | |
1119 | .type _sym, ${libc_cv_asm_type_prefix}gnu_unique_object | |
1120 | EOF | |
1121 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then | |
1122 | libc_cv_asm_unique_object=yes | |
1123 | else | |
1124 | libc_cv_asm_unique_object=no | |
1125 | fi | |
1126 | rm -f conftest*]) | |
1127 | if test $libc_cv_asm_unique_object = yes; then | |
1128 | AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT) | |
1129 | fi | |
1130 | ||
377a515b UD |
1131 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
1132 | [cat > conftest.s <<EOF | |
2293395f | 1133 | ${libc_cv_dot_text} |
4cca6b86 | 1134 | _sym: |
377a515b UD |
1135 | .symver _sym,sym@VERS |
1136 | EOF | |
3217788f | 1137 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
377a515b UD |
1138 | libc_cv_asm_symver_directive=yes |
1139 | else | |
1140 | libc_cv_asm_symver_directive=no | |
1141 | fi | |
1142 | rm -f conftest*]) | |
1143 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
1144 | if test $libc_cv_asm_symver_directive = yes; then | |
1145 | cat > conftest.s <<EOF | |
2293395f | 1146 | ${libc_cv_dot_text} |
4cca6b86 | 1147 | _sym: |
377a515b UD |
1148 | .symver _sym,sym@VERS |
1149 | EOF | |
1150 | cat > conftest.map <<EOF | |
f43ce637 | 1151 | VERS_1 { |
377a515b UD |
1152 | global: sym; |
1153 | }; | |
f43ce637 UD |
1154 | |
1155 | VERS_2 { | |
77e8bddf | 1156 | global: sym; |
f43ce637 | 1157 | } VERS_1; |
377a515b | 1158 | EOF |
3217788f RM |
1159 | if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
1160 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $LDFLAGS -shared | |
1161 | -o conftest.so conftest.o | |
1162 | -nostartfiles -nostdlib | |
1163 | -Wl,--version-script,conftest.map | |
c2f55635 | 1164 | 1>&AS_MESSAGE_LOG_FD]); |
377a515b UD |
1165 | then |
1166 | libc_cv_ld_version_script_option=yes | |
1167 | else | |
1168 | libc_cv_ld_version_script_option=no | |
1169 | fi | |
1170 | else | |
1171 | libc_cv_ld_version_script_option=no | |
1172 | fi | |
1173 | else | |
1174 | libc_cv_ld_version_script_option=no | |
1175 | fi | |
1176 | rm -f conftest*]) | |
7499a22a RM |
1177 | if test $shared != no && |
1178 | test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
1179 | test $libc_cv_ld_version_script_option = yes && |
1180 | test $enable_versioning = yes; then | |
377a515b UD |
1181 | VERSIONING=yes |
1182 | AC_DEFINE(DO_VERSIONING) | |
1183 | else | |
1184 | VERSIONING=no | |
1185 | fi | |
1186 | AC_SUBST(VERSIONING) | |
1187 | ||
a0da5fe1 | 1188 | if test $shared != no && test $VERSIONING = no; then |
f43ce637 | 1189 | echo "\ |
f4017d20 | 1190 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
1191 | *** versioning will introduce incompatibilities so that old binaries |
1192 | *** will not run anymore. | |
50304ef0 | 1193 | *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)." |
f43ce637 | 1194 | fi |
a0da5fe1 UD |
1195 | AC_CACHE_CHECK(for .previous assembler directive, |
1196 | libc_cv_asm_previous_directive, [dnl | |
1197 | cat > conftest.s <<EOF | |
fd26970f UD |
1198 | .section foo_section |
1199 | .previous | |
a0da5fe1 UD |
1200 | EOF |
1201 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1202 | libc_cv_asm_previous_directive=yes | |
1203 | else | |
1204 | libc_cv_asm_previous_directive=no | |
1205 | fi | |
1206 | rm -f conftest*]) | |
1207 | if test $libc_cv_asm_previous_directive = yes; then | |
1208 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
1209 | else | |
1210 | AC_CACHE_CHECK(for .popsection assembler directive, | |
1211 | libc_cv_asm_popsection_directive, [dnl | |
1212 | cat > conftest.s <<EOF | |
1213 | .pushsection foo_section | |
1214 | .popsection | |
fd26970f | 1215 | EOF |
3217788f | 1216 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
a0da5fe1 | 1217 | libc_cv_asm_popsection_directive=yes |
fd26970f | 1218 | else |
a0da5fe1 | 1219 | libc_cv_asm_popsection_directive=no |
fd26970f UD |
1220 | fi |
1221 | rm -f conftest*]) | |
a0da5fe1 UD |
1222 | if test $libc_cv_asm_popsection_directive = yes; then |
1223 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
fd26970f | 1224 | fi |
a0da5fe1 UD |
1225 | fi |
1226 | AC_CACHE_CHECK(for .protected and .hidden assembler directive, | |
1227 | libc_cv_asm_protected_directive, [dnl | |
1228 | cat > conftest.s <<EOF | |
2d499f55 UD |
1229 | .protected foo |
1230 | foo: | |
1231 | .hidden bar | |
1232 | bar: | |
1233 | EOF | |
a0da5fe1 UD |
1234 | if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
1235 | libc_cv_asm_protected_directive=yes | |
1236 | else | |
1237 | AC_MSG_ERROR(assembler support for symbol visibility is required) | |
1238 | fi | |
1239 | rm -f conftest*]) | |
0fb7851f | 1240 | |
a0da5fe1 UD |
1241 | if test $libc_cv_asm_protected_directive = yes; then |
1242 | AC_CACHE_CHECK(whether __attribute__((visibility())) is supported, | |
0d01dace UD |
1243 | libc_cv_visibility_attribute, |
1244 | [cat > conftest.c <<EOF | |
1245 | int foo __attribute__ ((visibility ("hidden"))) = 1; | |
1246 | int bar __attribute__ ((visibility ("protected"))) = 1; | |
1247 | EOF | |
1248 | libc_cv_visibility_attribute=no | |
61cea1c3 | 1249 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
0d01dace UD |
1250 | if grep '\.hidden.*foo' conftest.s >/dev/null; then |
1251 | if grep '\.protected.*bar' conftest.s >/dev/null; then | |
1252 | libc_cv_visibility_attribute=yes | |
1253 | fi | |
1254 | fi | |
1255 | fi | |
f7d82dc9 | 1256 | rm -f conftest.{c,s} |
0d01dace | 1257 | ]) |
a0da5fe1 UD |
1258 | if test $libc_cv_visibility_attribute != yes; then |
1259 | AC_MSG_ERROR(compiler support for visibility attribute is required) | |
0d01dace | 1260 | fi |
a0da5fe1 | 1261 | fi |
0d01dace | 1262 | |
a0da5fe1 UD |
1263 | if test $libc_cv_visibility_attribute = yes; then |
1264 | AC_CACHE_CHECK(for broken __attribute__((visibility())), | |
37ba7d66 UD |
1265 | libc_cv_broken_visibility_attribute, |
1266 | [cat > conftest.c <<EOF | |
1267 | int foo (int x); | |
1268 | int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden"))); | |
1269 | int bar (int x) { return x; } | |
1270 | EOF | |
1271 | libc_cv_broken_visibility_attribute=yes | |
f7d82dc9 | 1272 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
37ba7d66 UD |
1273 | changequote(,)dnl |
1274 | if grep '\.hidden[ _]foo' conftest.s >/dev/null; then | |
1275 | changequote([,])dnl | |
1276 | libc_cv_broken_visibility_attribute=no | |
1277 | fi | |
1278 | fi | |
1279 | rm -f conftest.c conftest.s | |
1280 | ]) | |
a0da5fe1 UD |
1281 | if test $libc_cv_broken_visibility_attribute = yes; then |
1282 | AC_MSG_ERROR(working compiler support for visibility attribute is required) | |
37ba7d66 | 1283 | fi |
a0da5fe1 | 1284 | fi |
37ba7d66 | 1285 | |
a0da5fe1 UD |
1286 | AC_CACHE_CHECK(for broken __attribute__((alias())), |
1287 | libc_cv_broken_alias_attribute, | |
1288 | [cat > conftest.c <<EOF | |
1289 | extern int foo (int x) __asm ("xyzzy"); | |
1290 | int bar (int x) { return x; } | |
1291 | extern __typeof (bar) foo __attribute ((weak, alias ("bar"))); | |
1292 | extern int dfoo; | |
1293 | extern __typeof (dfoo) dfoo __asm ("abccb"); | |
1294 | int dfoo = 1; | |
37ba7d66 | 1295 | EOF |
a0da5fe1 UD |
1296 | libc_cv_broken_alias_attribute=yes |
1297 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1298 | if grep 'xyzzy' conftest.s >/dev/null && | |
1299 | grep 'abccb' conftest.s >/dev/null; then | |
1300 | libc_cv_broken_alias_attribute=no | |
1301 | fi | |
1302 | fi | |
1303 | rm -f conftest.c conftest.s | |
1304 | ]) | |
1305 | if test $libc_cv_broken_alias_attribute = yes; then | |
1306 | AC_MSG_ERROR(working alias attribute support required) | |
1307 | fi | |
1308 | ||
1309 | if test $libc_cv_visibility_attribute = yes; then | |
1310 | AC_CACHE_CHECK(whether to put _rtld_local into .sdata section, | |
0d01dace UD |
1311 | libc_cv_have_sdata_section, |
1312 | [echo "int i;" > conftest.c | |
1313 | libc_cv_have_sdata_section=no | |
dbc92dc6 | 1314 | if ${CC-cc} $LDFLAGS -fPIC -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \ |
0d01dace UD |
1315 | | grep '\.sdata' >/dev/null; then |
1316 | libc_cv_have_sdata_section=yes | |
1317 | fi | |
1318 | rm -f conftest.c conftest.so | |
1319 | ]) | |
a0da5fe1 UD |
1320 | if test $libc_cv_have_sdata_section = yes; then |
1321 | AC_DEFINE(HAVE_SDATA_SECTION) | |
0d01dace | 1322 | fi |
a0da5fe1 | 1323 | fi |
0d01dace | 1324 | |
a0da5fe1 UD |
1325 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, |
1326 | libc_cv_initfini_array, [dnl | |
07037eeb | 1327 | LIBC_TRY_LINK_STATIC([ |
5241882c | 1328 | int foo (void) { return 1; } |
2c617417 | 1329 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; |
07037eeb JM |
1330 | ], |
1331 | [if $READELF -S conftest | fgrep INIT_ARRAY > /dev/null; then | |
a0da5fe1 | 1332 | libc_cv_initfini_array=yes |
5241882c | 1333 | else |
ce33ee7c | 1334 | libc_cv_initfini_array=no |
07037eeb JM |
1335 | fi], |
1336 | [libc_cv_initfini_array=no]) | |
1337 | ]) | |
a0da5fe1 UD |
1338 | if test $libc_cv_initfini_array != yes; then |
1339 | AC_MSG_ERROR([Need linker with .init_array/.fini_array support.]) | |
1340 | fi | |
62bede13 | 1341 | |
a0da5fe1 UD |
1342 | AC_CACHE_CHECK(whether to use .ctors/.dtors header and trailer, |
1343 | libc_cv_ctors_header, [dnl | |
1344 | libc_cv_ctors_header=yes | |
07037eeb JM |
1345 | LIBC_TRY_LINK_STATIC([ |
1346 | __attribute__ ((constructor)) void ctor (void) { asm (""); } | |
1347 | __attribute__ ((destructor)) void dtor (void) { asm (""); } | |
113ddea4 | 1348 | ], |
a0da5fe1 | 1349 | [dnl |
113ddea4 | 1350 | AS_IF([$READELF -WS conftest$ac_exeext | $AWK ' |
92963737 | 1351 | { gsub(/\@<:@ */, "@<:@") } |
113ddea4 RM |
1352 | $2 == ".ctors" || $2 == ".dtors" { |
1353 | size = strtonum("0x" $6) | |
1354 | align = strtonum("0x" $NF) | |
1355 | seen@<:@$2@:>@ = 1 | |
1356 | stub@<:@$2@:>@ = size == align * 2 | |
92963737 | 1357 | } |
113ddea4 RM |
1358 | END { |
1359 | ctors_ok = !seen@<:@".ctors"@:>@ || stub@<:@".ctors"@:>@ | |
1360 | dtors_ok = !seen@<:@".dtors"@:>@ || stub@<:@".dtors"@:>@ | |
1361 | exit ((ctors_ok && dtors_ok) ? 0 : 1) | |
1362 | } | |
1363 | '], [libc_cv_ctors_header=no]) | |
1364 | ], [dnl | |
1365 | AC_MSG_ERROR([missing __attribute__ ((constructor)) support??]) | |
1366 | ]) | |
a0da5fe1 UD |
1367 | ]) |
1368 | if test $libc_cv_ctors_header = no; then | |
1369 | AC_DEFINE(NO_CTORS_DTORS_SECTIONS) | |
1370 | fi | |
5241882c | 1371 | |
a0da5fe1 UD |
1372 | AC_CACHE_CHECK(for libunwind-support in compiler, |
1373 | libc_cv_cc_with_libunwind, [ | |
1374 | cat > conftest.c <<EOF | |
cbdb12de UD |
1375 | int main (void) { return 0; } |
1376 | EOF | |
a0da5fe1 UD |
1377 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ |
1378 | conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then | |
1379 | libc_cv_cc_with_libunwind=yes | |
1380 | else | |
1381 | libc_cv_cc_with_libunwind=no | |
c776b3d7 | 1382 | fi |
a0da5fe1 UD |
1383 | rm -f conftest*]) |
1384 | AC_SUBST(libc_cv_cc_with_libunwind) | |
1385 | if test $libc_cv_cc_with_libunwind = yes; then | |
1386 | AC_DEFINE(HAVE_CC_WITH_LIBUNWIND) | |
1387 | fi | |
c776b3d7 | 1388 | |
a0da5fe1 UD |
1389 | AC_CACHE_CHECK(for -z nodelete option, |
1390 | libc_cv_z_nodelete, [dnl | |
1391 | cat > conftest.c <<EOF | |
0fb7851f UD |
1392 | int _start (void) { return 42; } |
1393 | EOF | |
a0da5fe1 UD |
1394 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1395 | -fPIC -shared -o conftest.so conftest.c | |
1396 | -nostartfiles -nostdlib | |
1397 | -Wl,--enable-new-dtags,-z,nodelete 1>&AS_MESSAGE_LOG_FD]) | |
1398 | then | |
1399 | libc_cv_z_nodelete=yes | |
1400 | else | |
1401 | AC_MSG_ERROR(linker with -z nodelete support required) | |
1402 | fi | |
1403 | rm -f conftest*]) | |
2f54c82d | 1404 | |
a0da5fe1 UD |
1405 | AC_CACHE_CHECK(for -z nodlopen option, |
1406 | libc_cv_z_nodlopen, [dnl | |
1407 | cat > conftest.c <<EOF | |
2f54c82d UD |
1408 | int _start (void) { return 42; } |
1409 | EOF | |
a0da5fe1 | 1410 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1411 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1412 | -nostartfiles -nostdlib |
c2f55635 | 1413 | -Wl,--enable-new-dtags,-z,nodlopen 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 UD |
1414 | then |
1415 | libc_cv_z_nodlopen=yes | |
1416 | else | |
1417 | AC_MSG_ERROR(linker with -z nodlopen support required) | |
1418 | fi | |
1419 | rm -f conftest*]) | |
5d916713 | 1420 | |
a0da5fe1 UD |
1421 | AC_CACHE_CHECK(for -z initfirst option, |
1422 | libc_cv_z_initfirst, [dnl | |
1423 | cat > conftest.c <<EOF | |
5d916713 UD |
1424 | int _start (void) { return 42; } |
1425 | EOF | |
a0da5fe1 | 1426 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1427 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1428 | -nostartfiles -nostdlib |
c2f55635 | 1429 | -Wl,--enable-new-dtags,-z,initfirst 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 UD |
1430 | then |
1431 | libc_cv_z_initfirst=yes | |
1432 | else | |
1433 | AC_MSG_ERROR(linker with -z initfirst support required) | |
1434 | fi | |
1435 | rm -f conftest*]) | |
639c3248 | 1436 | |
a0da5fe1 UD |
1437 | # Add-on fragments can set these for other machines. |
1438 | libc_commonpagesize=${libc_commonpagesize:-no} | |
1439 | libc_relro_required=${libc_relro_required:-no} | |
1440 | case "$base_machine" in | |
1441 | i[[34567]]86 | x86_64 | powerpc* | s390*) | |
1442 | libc_commonpagesize=0x1000 | |
1443 | libc_relro_required=yes | |
1444 | ;; | |
1445 | sparc*) | |
1446 | libc_commonpagesize=0x2000 | |
1447 | libc_relro_required=yes | |
1448 | ;; | |
a0da5fe1 | 1449 | esac |
574920b4 | 1450 | |
a0da5fe1 UD |
1451 | if test $libc_commonpagesize != no; then |
1452 | AC_CACHE_CHECK(for -z relro option, | |
1453 | libc_cv_z_relro, [dnl | |
1454 | libc_cv_z_relro=no | |
1455 | AC_LANG_CONFTEST([AC_LANG_SOURCE([[ | |
574920b4 RM |
1456 | int _start (void) { return 42; } |
1457 | extern void _exit (int); | |
9fa2c032 RM |
1458 | /* Since these pointers are const, they should go in rodata. |
1459 | Since they refer to functions that have to be resolved by | |
1460 | dynamic linking, they should instead go in RELRO data. */ | |
defe9061 | 1461 | const void *const relro[] = { &_start, &_exit, 0 }; |
9fa2c032 RM |
1462 | /* GNU ld fails to produce RELRO data when it's very small and there is no |
1463 | normal writable data following it, or if only uninitialized (.bss) data | |
1464 | follows it, or only very small writable data. */ | |
1465 | int data[0x10000] = { 1, }; | |
574920b4 | 1466 | ]])]) |
a0da5fe1 | 1467 | cat > conftest.awk <<\EOF |
574920b4 RM |
1468 | BEGIN { |
1469 | result = "no" | |
1470 | commonpagesize = strtonum(commonpagesize) | |
1471 | } | |
1472 | { print "LINE:", $0 > "/dev/stderr" } | |
1473 | $1 == "GNU_RELRO" { | |
1474 | vaddr = strtonum($3) | |
1475 | memsz = strtonum($6) | |
1476 | end = vaddr + memsz | |
1477 | printf "vaddr %#x memsz %#x end %#x commonpagesize %#x\n", \ | |
1478 | vaddr, memsz, end, commonpagesize > "/dev/stderr" | |
1479 | result = (end % commonpagesize == 0) ? "yes" : "broken" | |
1480 | } | |
1481 | END { print result } | |
1482 | EOF | |
a0da5fe1 | 1483 | AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
574920b4 RM |
1484 | -fPIC -shared -o conftest.so conftest.c |
1485 | -nostartfiles -nostdlib | |
1486 | -Wl,-z,relro 1>&AS_MESSAGE_LOG_FD]) && | |
a0da5fe1 UD |
1487 | AC_TRY_COMMAND([$READELF -Wl conftest.so > conftest.ph]) && |
1488 | AC_TRY_COMMAND([ | |
574920b4 RM |
1489 | $AWK -v commonpagesize=$libc_commonpagesize -f conftest.awk |
1490 | conftest.ph > conftest.cps | |
1491 | ]) && | |
a0da5fe1 UD |
1492 | libc_cv_z_relro=`cat conftest.cps 2>&AS_MESSAGE_LOG_FD` |
1493 | rm -f conftest*]) | |
1494 | if { test "x$libc_relro_required" = xyes && | |
1495 | test "x$libc_cv_z_relro" != xyes | |
1496 | } | |
1497 | then | |
1498 | AC_MSG_ERROR(linker with -z relro support required) | |
574920b4 | 1499 | fi |
a0da5fe1 UD |
1500 | else |
1501 | AC_MSG_WARN([missing architecture parameter to check for working -z relro]) | |
1502 | fi | |
ed20b3d9 | 1503 | |
a0da5fe1 UD |
1504 | AC_CACHE_CHECK(for -Bgroup option, |
1505 | libc_cv_Bgroup, [dnl | |
1506 | cat > conftest.c <<EOF | |
639c3248 UD |
1507 | int _start (void) { return 42; } |
1508 | EOF | |
a0da5fe1 UD |
1509 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1510 | -fPIC -shared -o conftest.so conftest.c | |
1511 | -Wl,-Bgroup -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1512 | then | |
1513 | libc_cv_Bgroup=yes | |
1514 | else | |
1515 | libc_cv_Bgroup=no | |
1516 | fi | |
1517 | rm -f conftest*]) | |
1518 | AC_SUBST(libc_cv_Bgroup) | |
a711b01d | 1519 | |
a0da5fe1 UD |
1520 | ASFLAGS_config= |
1521 | AC_CACHE_CHECK(whether --noexecstack is desirable for .S files, | |
1522 | libc_cv_as_noexecstack, [dnl | |
1523 | cat > conftest.c <<EOF | |
35915ec8 UD |
1524 | void foo (void) { } |
1525 | EOF | |
a0da5fe1 UD |
1526 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS |
1527 | -S -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) \ | |
1528 | && grep -q .note.GNU-stack conftest.s \ | |
1529 | && AC_TRY_COMMAND([${CC-cc} $ASFLAGS -Wa,--noexecstack | |
1530 | -c -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD]) | |
1531 | then | |
1532 | libc_cv_as_noexecstack=yes | |
1533 | else | |
1534 | libc_cv_as_noexecstack=no | |
1535 | fi | |
1536 | rm -f conftest*]) | |
1537 | if test $libc_cv_as_noexecstack = yes; then | |
1538 | ASFLAGS_config="$ASFLAGS_config -Wa,--noexecstack" | |
1539 | fi | |
1540 | AC_SUBST(ASFLAGS_config) | |
2abf9ff1 | 1541 | |
a0da5fe1 UD |
1542 | AC_CACHE_CHECK(for -z combreloc, |
1543 | libc_cv_z_combreloc, [dnl | |
1544 | cat > conftest.c <<EOF | |
d555194c UD |
1545 | extern int bar (int); |
1546 | extern int mumble; | |
1547 | int foo (void) { return bar (mumble); } | |
a711b01d | 1548 | EOF |
a0da5fe1 | 1549 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dbc92dc6 | 1550 | -fPIC -shared -o conftest.so conftest.c |
35cd3c97 | 1551 | -nostdlib -nostartfiles |
c2f55635 | 1552 | -Wl,-z,combreloc 1>&AS_MESSAGE_LOG_FD]) |
a0da5fe1 | 1553 | then |
a711b01d UD |
1554 | dnl The following test is a bit weak. We must use a tool which can test |
1555 | dnl cross-platform since the gcc used can be a cross compiler. Without | |
1556 | dnl introducing new options this is not easily doable. Instead use a tool | |
1557 | dnl which always is cross-platform: readelf. To detect whether -z combreloc | |
1558 | dnl look for a section named .rel.dyn. | |
a0da5fe1 UD |
1559 | if $READELF -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then |
1560 | libc_cv_z_combreloc=yes | |
fdde8349 UD |
1561 | else |
1562 | libc_cv_z_combreloc=no | |
a711b01d | 1563 | fi |
a0da5fe1 UD |
1564 | else |
1565 | libc_cv_z_combreloc=no | |
1566 | fi | |
1567 | rm -f conftest*]) | |
1568 | if test "$libc_cv_z_combreloc" = yes; then | |
1569 | AC_DEFINE(HAVE_Z_COMBRELOC) | |
1570 | fi | |
1571 | AC_SUBST(libc_cv_z_combreloc) | |
2abf9ff1 | 1572 | |
a0da5fe1 UD |
1573 | AC_CACHE_CHECK(for -z execstack, |
1574 | libc_cv_z_execstack, [dnl | |
1575 | cat > conftest.c <<EOF | |
2abf9ff1 RM |
1576 | int _start (void) { return 42; } |
1577 | EOF | |
a0da5fe1 UD |
1578 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1579 | -fPIC -shared -o conftest.so conftest.c | |
1580 | -Wl,-z,execstack -nostdlib | |
1581 | 1>&AS_MESSAGE_LOG_FD]) | |
1582 | then | |
1583 | libc_cv_z_execstack=yes | |
1584 | else | |
1585 | libc_cv_z_execstack=no | |
1586 | fi | |
1587 | rm -f conftest*]) | |
1588 | AC_SUBST(libc_cv_z_execstack) | |
c9c60884 | 1589 | |
a0da5fe1 UD |
1590 | AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl |
1591 | cat > conftest.c <<EOF | |
c9c60884 | 1592 | int foo; |
49803108 | 1593 | main () { return 0;} |
c9c60884 | 1594 | EOF |
a0da5fe1 UD |
1595 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie |
1596 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
1597 | then | |
1598 | libc_cv_fpie=yes | |
1599 | else | |
1600 | libc_cv_fpie=no | |
1601 | fi | |
1602 | rm -f conftest*]) | |
c9c60884 | 1603 | |
a0da5fe1 | 1604 | AC_SUBST(libc_cv_fpie) |
871b9158 | 1605 | |
a0da5fe1 UD |
1606 | AC_CACHE_CHECK(for --hash-style option, |
1607 | libc_cv_hashstyle, [dnl | |
1608 | cat > conftest.c <<EOF | |
871b9158 UD |
1609 | int _start (void) { return 42; } |
1610 | EOF | |
a0da5fe1 UD |
1611 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
1612 | -fPIC -shared -o conftest.so conftest.c | |
1613 | -Wl,--hash-style=both -nostdlib 1>&AS_MESSAGE_LOG_FD]) | |
1614 | then | |
1615 | libc_cv_hashstyle=yes | |
1616 | else | |
1617 | libc_cv_hashstyle=no | |
1618 | fi | |
1619 | rm -f conftest*]) | |
1620 | AC_SUBST(libc_cv_hashstyle) | |
1621 | ||
1622 | # The linker's default -shared behavior is good enough if it | |
1623 | # does these things that our custom linker scripts ensure that | |
1624 | # all allocated NOTE sections come first. | |
1625 | if test "$use_default_link" = default; then | |
1626 | AC_CACHE_CHECK([for sufficient default -shared layout], | |
1627 | libc_cv_use_default_link, [dnl | |
1628 | libc_cv_use_default_link=no | |
1629 | cat > conftest.s <<\EOF | |
fd5e21c7 RM |
1630 | .section .note.a,"a",%note |
1631 | .balign 4 | |
1632 | .long 4,4,9 | |
1633 | .string "GNU" | |
1634 | .string "foo" | |
1635 | .section .note.b,"a",%note | |
1636 | .balign 4 | |
1637 | .long 4,4,9 | |
1638 | .string "GNU" | |
1639 | .string "bar" | |
1640 | EOF | |
a0da5fe1 | 1641 | if AC_TRY_COMMAND([dnl |
fd5e21c7 RM |
1642 | ${CC-cc} $ASFLAGS -shared -o conftest.so conftest.s 1>&AS_MESSAGE_LOG_FD]) && |
1643 | ac_try=`$READELF -S conftest.so | sed -n \ | |
1644 | ['${x;p;} | |
1645 | s/^ *\[ *[1-9][0-9]*\] *\([^ ][^ ]*\) *\([^ ][^ ]*\) .*$/\2 \1/ | |
1646 | t a | |
1647 | b | |
1648 | : a | |
1649 | H']` | |
a0da5fe1 UD |
1650 | then |
1651 | libc_seen_a=no libc_seen_b=no | |
1652 | set -- $ac_try | |
1653 | while test $# -ge 2 -a "$1" = NOTE; do | |
1654 | case "$2" in | |
1655 | .note.a) libc_seen_a=yes ;; | |
1656 | .note.b) libc_seen_b=yes ;; | |
1657 | esac | |
1658 | shift 2 | |
1659 | done | |
1660 | case "$libc_seen_a$libc_seen_b" in | |
1661 | yesyes) | |
1662 | libc_cv_use_default_link=yes | |
1663 | ;; | |
1664 | *) | |
1665 | echo >&AS_MESSAGE_LOG_FD "\ | |
fd5e21c7 RM |
1666 | $libc_seen_a$libc_seen_b from: |
1667 | $ac_try" | |
a0da5fe1 UD |
1668 | ;; |
1669 | esac | |
fd5e21c7 | 1670 | fi |
a0da5fe1 UD |
1671 | rm -f conftest*]) |
1672 | use_default_link=$libc_cv_use_default_link | |
fd26970f | 1673 | fi |
49803108 | 1674 | |
5c550700 RM |
1675 | AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl |
1676 | if libc_cv_output_format=` | |
1677 | ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD` | |
1678 | then | |
1679 | : | |
1680 | else | |
1681 | libc_cv_output_format= | |
1682 | fi | |
1683 | test -n "$libc_cv_output_format" || libc_cv_output_format=unknown]) | |
1684 | AC_SUBST(libc_cv_output_format) | |
1685 | ||
22dca1ea | 1686 | AC_CACHE_CHECK(for -fno-toplevel-reorder -fno-section-anchors, libc_cv_fno_toplevel_reorder, [dnl |
49803108 AJ |
1687 | cat > conftest.c <<EOF |
1688 | int foo; | |
1689 | EOF | |
22dca1ea | 1690 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -fno-toplevel-reorder -fno-section-anchors |
49803108 AJ |
1691 | conftest.c 1>&AS_MESSAGE_LOG_FD]) |
1692 | then | |
18e2ac6d | 1693 | libc_cv_fno_toplevel_reorder=yes |
49803108 | 1694 | else |
18e2ac6d | 1695 | libc_cv_fno_toplevel_reorder=no |
49803108 AJ |
1696 | fi |
1697 | rm -f conftest*]) | |
18e2ac6d | 1698 | if test $libc_cv_fno_toplevel_reorder = yes; then |
22dca1ea | 1699 | fno_unit_at_a_time="-fno-toplevel-reorder -fno-section-anchors" |
18e2ac6d | 1700 | else |
49803108 AJ |
1701 | fno_unit_at_a_time=-fno-unit-at-a-time |
1702 | fi | |
1703 | AC_SUBST(fno_unit_at_a_time) | |
fd26970f | 1704 | |
401a9ec9 | 1705 | AC_CACHE_CHECK(for -fstack-protector, libc_cv_ssp, [dnl |
17228132 TS |
1706 | LIBC_TRY_CC_OPTION([$CFLAGS $CPPFLAGS -Werror -fstack-protector], |
1707 | [libc_cv_ssp=yes], | |
1708 | [libc_cv_ssp=no]) | |
1709 | ]) | |
401a9ec9 UD |
1710 | AC_SUBST(libc_cv_ssp) |
1711 | ||
b037a293 UD |
1712 | AC_CACHE_CHECK(for -fgnu89-inline, libc_cv_gnu89_inline, [dnl |
1713 | cat > conftest.c <<EOF | |
1714 | int foo; | |
1715 | #ifdef __GNUC_GNU_INLINE__ | |
1716 | main () { return 0;} | |
1717 | #else | |
1718 | #error | |
1719 | #endif | |
1720 | EOF | |
371f84a4 JJ |
1721 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -std=gnu99 -fgnu89-inline |
1722 | -o conftest.s conftest.c 1>&AS_MESSAGE_LOG_FD]) | |
b037a293 UD |
1723 | then |
1724 | libc_cv_gnu89_inline=yes | |
1725 | else | |
1726 | libc_cv_gnu89_inline=no | |
1727 | fi | |
1728 | rm -f conftest*]) | |
1729 | if test $libc_cv_gnu89_inline = yes; then | |
1c7570ff | 1730 | gnu89_inline=-fgnu89-inline |
b037a293 | 1731 | else |
1c7570ff | 1732 | gnu89_inline= |
b037a293 | 1733 | fi |
1c7570ff | 1734 | AC_SUBST(gnu89_inline) |
b037a293 | 1735 | |
a0da5fe1 UD |
1736 | AC_CACHE_CHECK(whether cc puts quotes around section names, |
1737 | libc_cv_have_section_quotes, | |
1738 | [cat > conftest.c <<EOF | |
1739 | static const int foo | |
1740 | __attribute__ ((section ("bar"))) = 1; | |
e26dd47f | 1741 | EOF |
a0da5fe1 UD |
1742 | if ${CC-cc} -S conftest.c -o conftest.s; then |
1743 | if grep '\.section.*"bar"' conftest.s >/dev/null; then | |
1744 | libc_cv_have_section_quotes=yes | |
e26dd47f | 1745 | else |
a0da5fe1 | 1746 | libc_cv_have_section_quotes=no |
e26dd47f | 1747 | fi |
a0da5fe1 UD |
1748 | else |
1749 | libc_cv_have_section_quotes=unknown | |
1750 | fi | |
1751 | rm -f conftest.{c,s} | |
1752 | ]) | |
1753 | if test $libc_cv_have_section_quotes = yes; then | |
1754 | AC_DEFINE(HAVE_SECTION_QUOTES) | |
9a97d1f7 UD |
1755 | fi |
1756 | ||
1757 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
75d86c1f | 1758 | [dnl |
c224a18a | 1759 | cat > conftest.s <<EOF |
2293395f | 1760 | ${libc_cv_dot_text} |
c224a18a | 1761 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1762 | foo: |
c224a18a RM |
1763 | .weak foo |
1764 | .weak bar; bar = foo | |
1765 | EOF | |
3217788f | 1766 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a97d1f7 UD |
1767 | libc_cv_asm_weak_directive=yes |
1768 | else | |
1769 | libc_cv_asm_weak_directive=no | |
1770 | fi | |
1771 | rm -f conftest*]) | |
c224a18a | 1772 | |
c8cf0b14 | 1773 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
1774 | AC_CACHE_CHECK(for assembler .weakext directive, |
1775 | libc_cv_asm_weakext_directive, | |
1776 | [dnl | |
1777 | cat > conftest.s <<EOF | |
2293395f | 1778 | ${libc_cv_dot_text} |
c224a18a | 1779 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1780 | foo: |
f802accb UD |
1781 | .weakext bar foo |
1782 | .weakext baz | |
1783 | ${libc_cv_asm_global_directive} baz | |
9a97d1f7 | 1784 | baz: |
c224a18a | 1785 | EOF |
3217788f | 1786 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
c224a18a RM |
1787 | libc_cv_asm_weakext_directive=yes |
1788 | else | |
1789 | libc_cv_asm_weakext_directive=no | |
1790 | fi | |
1791 | rm -f conftest*]) | |
1792 | ||
9a97d1f7 | 1793 | fi # no .weak |
c224a18a | 1794 | |
ffcf9634 | 1795 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 1796 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 1797 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
1798 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
1799 | fi | |
1800 | ||
50189569 | 1801 | AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl |
ced368f7 UD |
1802 | case $machine in |
1803 | sparc/sparc64*) cfi_offset=2047;; | |
1804 | *) cfi_offset=0;; | |
1805 | esac | |
50189569 | 1806 | cat > conftest.s <<EOF |
77e8bddf AS |
1807 | .text |
1808 | .type func,%function | |
50189569 | 1809 | func: |
77e8bddf | 1810 | .cfi_startproc |
f212e8dc | 1811 | .cfi_remember_state |
ced368f7 | 1812 | .cfi_rel_offset 1, $cfi_offset |
77e8bddf | 1813 | .cfi_endproc |
50189569 AJ |
1814 | EOF |
1815 | if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then | |
1816 | libc_cv_asm_cfi_directives=yes | |
1817 | else | |
1818 | libc_cv_asm_cfi_directives=no | |
1819 | fi | |
1820 | rm -f conftest*]) | |
1821 | if test $libc_cv_asm_cfi_directives = yes; then | |
1822 | AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) | |
bcd5f356 | 1823 | fi |
50189569 | 1824 | |
a641835a RM |
1825 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
1826 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 1827 | _start () {} |
dcf0671d UD |
1828 | int __eh_pc; |
1829 | __throw () {} | |
a641835a | 1830 | EOF |
dcea62dd | 1831 | dnl No \ in command here because it ends up inside ''. |
3217788f | 1832 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dcea62dd | 1833 | -nostdlib -nostartfiles -Wl,--no-whole-archive |
c2f55635 | 1834 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
a641835a RM |
1835 | libc_cv_ld_no_whole_archive=yes |
1836 | else | |
1837 | libc_cv_ld_no_whole_archive=no | |
1838 | fi | |
1839 | rm -f conftest*]) | |
3ce1f295 UD |
1840 | if test $libc_cv_ld_no_whole_archive = no; then |
1841 | AC_MSG_ERROR([support for --no-whole-archive is needed]) | |
b17277cf | 1842 | fi |
a641835a | 1843 | |
dff14448 | 1844 | AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl |
b236e99d UD |
1845 | cat > conftest.c <<\EOF |
1846 | _start () {} | |
1847 | int __eh_pc; | |
1848 | __throw () {} | |
1849 | EOF | |
1850 | dnl No \ in command here because it ends up inside ''. | |
3217788f | 1851 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS |
dff14448 | 1852 | -nostdlib -nostartfiles -fexceptions |
c2f55635 | 1853 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
dff14448 | 1854 | libc_cv_gcc_exceptions=yes |
b236e99d | 1855 | else |
dff14448 | 1856 | libc_cv_gcc_exceptions=no |
b236e99d UD |
1857 | fi |
1858 | rm -f conftest*]) | |
dff14448 UD |
1859 | if test $libc_cv_gcc_exceptions = yes; then |
1860 | exceptions=-fexceptions | |
b17277cf | 1861 | fi |
dff14448 | 1862 | AC_SUBST(exceptions)dnl |
b236e99d | 1863 | |
66000494 UD |
1864 | if test "$host_cpu" = powerpc ; then |
1865 | # Check for a bug present in at least versions 2.8.x of GCC | |
1866 | # and versions 1.0.x of EGCS. | |
1867 | AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl | |
1868 | AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, | |
1869 | libc_cv_c_asmcr0_bug='no', | |
1870 | libc_cv_c_asmcr0_bug='yes')]) | |
1871 | if test "$libc_cv_c_asmcr0_bug" != 'no'; then | |
1872 | AC_DEFINE(BROKEN_PPC_ASM_CR0) | |
1873 | fi | |
1874 | fi | |
1875 | ||
d555194c UD |
1876 | AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl |
1877 | cat > conftest.c <<\EOF | |
1878 | void zero (void *x) | |
1879 | { | |
a52d1562 | 1880 | __builtin_memset (x, 0, 1000); |
d555194c UD |
1881 | } |
1882 | EOF | |
1883 | dnl | |
1884 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]); | |
1885 | then | |
1886 | libc_cv_gcc_builtin_memset=no | |
1887 | else | |
1888 | libc_cv_gcc_builtin_memset=yes | |
1889 | fi | |
1890 | rm -f conftest* ]) | |
1891 | if test "$libc_cv_gcc_builtin_memset" = yes ; then | |
1892 | AC_DEFINE(HAVE_BUILTIN_MEMSET) | |
1893 | fi | |
1894 | ||
85dd1003 UD |
1895 | AC_CACHE_CHECK(for redirection of built-in functions, libc_cv_gcc_builtin_redirection, [dnl |
1896 | cat > conftest.c <<\EOF | |
1897 | extern char *strstr (const char *, const char *) __asm ("my_strstr"); | |
1898 | char *foo (const char *a, const char *b) | |
1899 | { | |
1900 | return __builtin_strstr (a, b); | |
1901 | } | |
1902 | EOF | |
1903 | dnl | |
1904 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "my_strstr" > /dev/null]); | |
1905 | then | |
1906 | libc_cv_gcc_builtin_redirection=yes | |
1907 | else | |
1908 | libc_cv_gcc_builtin_redirection=no | |
1909 | fi | |
1910 | rm -f conftest* ]) | |
3ce1f295 UD |
1911 | if test "$libc_cv_gcc_builtin_redirection" = no; then |
1912 | AC_MSG_ERROR([support for the symbol redirection needed]) | |
85dd1003 UD |
1913 | fi |
1914 | ||
739d440d | 1915 | dnl Check whether the compiler supports the __thread keyword. |
3ce1f295 UD |
1916 | AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread, |
1917 | [cat > conftest.c <<\EOF | |
fbb18522 RM |
1918 | __thread int a = 42; |
1919 | EOF | |
3ce1f295 UD |
1920 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD]); then |
1921 | libc_cv_gcc___thread=yes | |
739d440d UD |
1922 | else |
1923 | libc_cv_gcc___thread=no | |
1924 | fi | |
3ce1f295 UD |
1925 | rm -f conftest*]) |
1926 | if test "$libc_cv_gcc___thread" = no; then | |
1927 | AC_MSG_ERROR([support for the __thread keyword is required]) | |
1928 | fi | |
739d440d | 1929 | |
3ce1f295 UD |
1930 | dnl Check whether the compiler supports the tls_model attribute. |
1931 | AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl | |
1932 | cat > conftest.c <<\EOF | |
9b21e6bc RM |
1933 | extern __thread int a __attribute__((tls_model ("initial-exec"))); |
1934 | EOF | |
3ce1f295 UD |
1935 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -S -Werror conftest.c >&AS_MESSAGE_LOG_FD]); then |
1936 | libc_cv_gcc_tls_model_attr=yes | |
1937 | else | |
1938 | libc_cv_gcc_tls_model_attr=no | |
1939 | fi | |
1940 | rm -f conftest*]) | |
1941 | if test "$libc_cv_gcc_tls_model_attr" = no; then | |
1942 | AC_MSG_ERROR([support for the tls_model attribute is required]) | |
9b21e6bc | 1943 | fi |
739d440d | 1944 | |
7998fa78 AS |
1945 | dnl Determine how to disable generation of FMA instructions. |
1946 | AC_CACHE_CHECK([for compiler option to disable generation of FMA instructions], | |
1947 | libc_cv_cc_nofma, [dnl | |
1948 | libc_cv_cc_nofma= | |
1949 | for opt in -ffp-contract=off -mno-fused-madd; do | |
1950 | LIBC_TRY_CC_OPTION([$opt], [libc_cv_cc_nofma=$opt; break]) | |
1951 | done]) | |
1952 | ||
2cf9ad57 RM |
1953 | if test -n "$submachine"; then |
1954 | AC_CACHE_CHECK([for compiler option for CPU variant], | |
f7d82dc9 | 1955 | libc_cv_cc_submachine, [dnl |
2cf9ad57 RM |
1956 | libc_cv_cc_submachine=no |
1957 | for opt in "-march=$submachine" "-mcpu=$submachine"; do | |
40b601fb | 1958 | LIBC_TRY_CC_OPTION([$opt], [ |
2cf9ad57 | 1959 | libc_cv_cc_submachine="$opt" |
40b601fb | 1960 | break], []) |
2cf9ad57 RM |
1961 | done]) |
1962 | if test "x$libc_cv_cc_submachine" = xno; then | |
1963 | AC_MSG_ERROR([${CC-cc} does not support $submachine]) | |
1964 | fi | |
1965 | fi | |
1966 | AC_SUBST(libc_cv_cc_submachine) | |
1967 | ||
c8f3e6db UD |
1968 | dnl Check whether we have the gd library available. |
1969 | AC_MSG_CHECKING(for libgd) | |
6dab8688 UD |
1970 | if test "$with_gd" != "no"; then |
1971 | old_CFLAGS="$CFLAGS" | |
1972 | CFLAGS="$CFLAGS $libgd_include" | |
1973 | old_LDFLAGS="$LDFLAGS" | |
1974 | LDFLAGS="$LDFLAGS $libgd_ldflags" | |
1975 | old_LIBS="$LIBS" | |
1976 | LIBS="$LIBS -lgd -lpng -lz -lm" | |
1977 | AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no) | |
1978 | CFLAGS="$old_CFLAGS" | |
1979 | LDFLAGS="$old_LDFLAGS" | |
1980 | LIBS="$old_LIBS" | |
1981 | else | |
1982 | LIBGD=no | |
1983 | fi | |
c8f3e6db UD |
1984 | AC_MSG_RESULT($LIBGD) |
1985 | AC_SUBST(LIBGD) | |
3d558f4e | 1986 | |
2fff3d93 UD |
1987 | # SELinux detection |
1988 | if test x$with_selinux = xno ; then | |
1989 | have_selinux=no; | |
1990 | else | |
1991 | # See if we have the SELinux library | |
1992 | AC_CHECK_LIB(selinux, is_selinux_enabled, | |
1993 | have_selinux=yes, have_selinux=no) | |
1994 | # See if we have the SELinux header with the NSCD permissions in it. | |
1995 | if test x$have_selinux = xyes ; then | |
1996 | AC_MSG_CHECKING([for NSCD Flask permissions in selinux/av_permissions.h]) | |
1997 | AC_TRY_COMPILE([#include <selinux/av_permissions.h>], | |
1998 | [#ifdef NSCD__SHMEMHOST | |
1999 | return 0; | |
2000 | #else | |
2001 | #error NSCD__SHMEMHOST not defined | |
2002 | #endif], | |
2003 | have_selinux=yes, have_selinux=no) | |
2004 | AC_MSG_RESULT($have_selinux) | |
2005 | fi | |
2006 | ||
49155d51 | 2007 | if test x$with_selinux = xyes ; then |
2fff3d93 | 2008 | if test x$have_selinux = xno ; then |
49155d51 | 2009 | AC_MSG_ERROR([SELinux explicitly required, but sufficiently recent SELinux library not found]) |
2fff3d93 UD |
2010 | fi |
2011 | fi | |
2012 | fi | |
2013 | # Check if we're building with SELinux support. | |
2014 | if test "x$have_selinux" = xyes; then | |
943db9eb | 2015 | AC_DEFINE(HAVE_SELINUX, 1, [SELinux support]) |
ec23b9be UD |
2016 | |
2017 | # See if we have the libaudit library | |
943db9eb | 2018 | AC_CHECK_LIB(audit, audit_log_user_avc_message, |
77e8bddf | 2019 | have_libaudit=yes, have_libaudit=no) |
ec23b9be | 2020 | if test "x$have_libaudit" = xyes; then |
943db9eb | 2021 | AC_DEFINE(HAVE_LIBAUDIT, 1, [SELinux libaudit support]) |
ec23b9be UD |
2022 | fi |
2023 | AC_SUBST(have_libaudit) | |
1f063dca UD |
2024 | |
2025 | # See if we have the libcap library | |
2026 | AC_CHECK_LIB(cap, cap_init, have_libcap=yes, have_libcap=no) | |
2027 | if test "x$have_libcap" = xyes; then | |
2028 | AC_DEFINE(HAVE_LIBCAP, 1, [SELinux libcap support]) | |
2029 | fi | |
2030 | AC_SUBST(have_libcap) | |
2fff3d93 UD |
2031 | fi |
2032 | AC_SUBST(have_selinux) | |
2033 | ||
8ed1e7d5 GK |
2034 | dnl check for the size of 'long double'. |
2035 | AC_CHECK_SIZEOF(long double, 0) | |
2036 | sizeof_long_double=$ac_cv_sizeof_long_double | |
2037 | AC_SUBST(sizeof_long_double) | |
2038 | ||
c224a18a RM |
2039 | ### End of automated tests. |
2040 | ### Now run sysdeps configure fragments. | |
2041 | ||
cb343854 | 2042 | # They also can set these variables. |
591e1ffb | 2043 | use_ldconfig=no |
cb343854 | 2044 | ldd_rewrite_script=no |
77259608 | 2045 | libc_cv_sysconfdir=$sysconfdir |
74bd2300 | 2046 | libc_cv_gcc_unwind_find_fde=no |
e2fd3cbe | 2047 | libc_cv_idn=no |
cb343854 | 2048 | |
28f540f4 | 2049 | # Iterate over all the sysdep directories we will use, running their |
09055553 | 2050 | # configure fragments. |
28f540f4 | 2051 | for dir in $sysnames; do |
57ba7bb4 UD |
2052 | case $dir in |
2053 | /*) dest=$dir ;; | |
2054 | *) dest=$srcdir/$dir ;; | |
2055 | esac | |
2056 | if test -r $dest/configure; then | |
d1149385 | 2057 | AC_MSG_RESULT(running configure fragment for $dir) |
57ba7bb4 | 2058 | . $dest/configure |
28f540f4 | 2059 | fi |
28f540f4 RM |
2060 | done |
2061 | ||
74bd2300 UD |
2062 | if test x$libc_cv_gcc_unwind_find_fde = xyes; then |
2063 | AC_DEFINE(EXPORT_UNWIND_FIND_FDE) | |
2064 | fi | |
2065 | AC_SUBST(libc_cv_gcc_unwind_find_fde) | |
2066 | ||
a53bad16 UD |
2067 | # Test for old glibc 2.0.x headers so that they can be removed properly |
2068 | # Search only in includedir. | |
2069 | AC_MSG_CHECKING(for old glibc 2.0.x headers) | |
350eb336 | 2070 | if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h" |
a53bad16 UD |
2071 | then |
2072 | old_glibc_headers=yes | |
2073 | else | |
2074 | old_glibc_headers=no | |
2075 | fi | |
2076 | AC_MSG_RESULT($old_glibc_headers) | |
2077 | if test ${old_glibc_headers} = yes; then | |
2078 | AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will) | |
2079 | AC_MSG_WARN(*** be removed.) | |
2080 | fi | |
b195f6bc | 2081 | AC_SUBST(old_glibc_headers) |
26b4d766 | 2082 | |
84384f5b | 2083 | AC_SUBST(libc_cv_slibdir) |
a1d84548 | 2084 | AC_SUBST(libc_cv_localedir) |
77259608 | 2085 | AC_SUBST(libc_cv_sysconfdir) |
1ef32c3d | 2086 | AC_SUBST(libc_cv_rootsbindir) |
bcd5f356 | 2087 | AC_SUBST(libc_cv_forced_unwind) |
1ef32c3d | 2088 | |
58a4b51a RM |
2089 | dnl sysdeps/CPU/configure.in checks set this via arch-specific asm tests |
2090 | AC_SUBST(libc_cv_cpp_asm_debuginfo) | |
06e51c8f | 2091 | AC_SUBST(libc_cv_cc_sse4) |
b0ecde3a | 2092 | AC_SUBST(libc_cv_cc_avx) |
3b100462 | 2093 | AC_SUBST(libc_cv_cc_sse2avx) |
091023f5 | 2094 | AC_SUBST(libc_cv_cc_novzeroupper) |
af968f62 | 2095 | AC_SUBST(libc_cv_cc_fma4) |
7998fa78 | 2096 | AC_SUBST(libc_cv_cc_nofma) |
01f1f5ee | 2097 | AC_SUBST(libc_cv_as_i686) |
eae47a36 | 2098 | AC_SUBST(libc_cv_sparc_as_vis3) |
58a4b51a | 2099 | |
591e1ffb | 2100 | AC_SUBST(use_ldconfig) |
cb343854 | 2101 | AC_SUBST(ldd_rewrite_script) |
84384f5b | 2102 | |
650425ce | 2103 | AC_SUBST(static) |
ff3d7ed3 | 2104 | AC_SUBST(shared) |
a334319f | 2105 | |
ff886b82 UD |
2106 | AC_CACHE_CHECK([whether -fPIC is default], libc_cv_pic_default, |
2107 | [libc_cv_pic_default=yes | |
cc3fa755 | 2108 | cat > conftest.c <<EOF |
9756dfe1 | 2109 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
2110 | # error PIC is default. |
2111 | #endif | |
2112 | EOF | |
0b4ee387 | 2113 | if eval "${CC-cc} -S conftest.c 2>&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then |
ff886b82 | 2114 | libc_cv_pic_default=no |
cc3fa755 UD |
2115 | fi |
2116 | rm -f conftest.*]) | |
ff886b82 | 2117 | AC_SUBST(libc_cv_pic_default) |
cc3fa755 | 2118 | |
ff3d7ed3 | 2119 | AC_SUBST(profile) |
5107cf1d | 2120 | AC_SUBST(static_nss) |
ff3d7ed3 | 2121 | |
edf5b2d7 UD |
2122 | AC_SUBST(DEFINES) |
2123 | ||
61c83c3f RM |
2124 | dnl See sysdeps/mach/configure.in for this variable. |
2125 | AC_SUBST(mach_interface_list) | |
2126 | ||
28f540f4 RM |
2127 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
2128 | config_makefile= | |
2129 | else | |
2130 | config_makefile=Makefile | |
2131 | fi | |
2132 | ||
ee74a442 UD |
2133 | VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h` |
2134 | RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h` | |
df4ef2ab | 2135 | AC_SUBST(VERSION) |
ee74a442 | 2136 | AC_SUBST(RELEASE) |
df4ef2ab | 2137 | |
09055553 | 2138 | AC_CONFIG_FILES([config.make ${config_makefile}]) |
c118d634 | 2139 | AC_CONFIG_COMMANDS([default],[[ |
737547be UD |
2140 | case $CONFIG_FILES in *config.make*) |
2141 | echo "$config_vars" >> config.make;; | |
2142 | esac | |
c118d634 RM |
2143 | test -d bits || mkdir bits]],[[config_vars='$config_vars']]) |
2144 | AC_OUTPUT |