]>
Commit | Line | Data |
---|---|---|
f4017d20 | 1 | dnl Process this file with autoconf to produce a configure script. |
ff3d7ed3 | 2 | AC_REVISION([$CVSid$]) |
3a12e572 | 3 | AC_PREREQ(2.53)dnl dnl Minimum Autoconf version required. |
5d77b1da RM |
4 | AC_INIT([GNU C Library], [(see version.h)], [glibc]) |
5 | AC_CONFIG_SRCDIR([include/features.h]) | |
6b7f6183 RM |
6 | AC_CONFIG_HEADERS([config.h]) |
7 | AC_CONFIG_AUX_DIR([scripts]) | |
28f540f4 | 8 | |
c72637d4 RM |
9 | if test "`cd $srcdir; /bin/pwd`" = "`/bin/pwd`"; then |
10 | AC_MSG_ERROR([you must configure in a separate build directory]) | |
11 | fi | |
12 | ||
28f540f4 RM |
13 | # This will get text that should go into config.make. |
14 | config_vars= | |
15 | ||
16 | # Check for a --with-gmp argument and set gmp-srcdir in config.make. | |
6b7f6183 RM |
17 | AC_ARG_WITH([gmp], |
18 | AC_HELP_STRING([--with-gmp=DIRECTORY], | |
19 | [find GMP source code in DIRECTORY (not needed)]), | |
20 | [ | |
28f540f4 | 21 | case "$with_gmp" in |
6b7f6183 | 22 | yes) AC_MSG_ERROR([--with-gmp requires an argument; use --with-gmp=DIRECTORY]) ;; |
28f540f4 RM |
23 | ''|no) ;; |
24 | *) config_vars="$config_vars | |
25 | gmp-srcdir = $withval" ;; | |
26 | esac | |
27 | ]) | |
c8f3e6db | 28 | # Check for a --with-gd argument and set libgd-LDFLAGS in config.make. |
6b7f6183 RM |
29 | AC_ARG_WITH([gd], |
30 | AC_HELP_STRING([--with-gd=DIR], | |
31 | [find libgd include dir and library with prefix DIR]), | |
c8f3e6db UD |
32 | [dnl |
33 | case "$with_gd" in | |
f5f7239f UD |
34 | yes|''|no) ;; |
35 | *) libgd_include="-I$withval/include" | |
c8f3e6db UD |
36 | libgd_ldflags="-L$withval/lib" ;; |
37 | esac | |
38 | ]) | |
6b7f6183 RM |
39 | AC_ARG_WITH([gd-include], |
40 | AC_HELP_STRING([--with-gd-include=DIR], | |
41 | [find libgd include files in DIR]), | |
f5f7239f UD |
42 | [dnl |
43 | case "$with_gd_include" in | |
44 | ''|no) ;; | |
45 | *) libgd_include="-I$withval" ;; | |
46 | esac | |
47 | ]) | |
6b7f6183 RM |
48 | AC_ARG_WITH([gd-lib], |
49 | AC_HELP_STRING([--with-gd-lib=DIR], | |
50 | [find libgd library files in DIR]), | |
f5f7239f UD |
51 | [dnl |
52 | case "$with_gd_lib" in | |
53 | ''|no) ;; | |
54 | *) libgd_ldflags="-L$withval" ;; | |
55 | esac | |
56 | ]) | |
57 | ||
58 | if test -n "$libgd_include"; then | |
59 | config_vars="$config_vars | |
cf90163d | 60 | CFLAGS-memusagestat.c = $libgd_include" |
f5f7239f UD |
61 | fi |
62 | if test -n "$libgd_ldflags"; then | |
63 | config_vars="$config_vars | |
64 | libgd-LDFLAGS = $libgd_ldflags" | |
65 | fi | |
28f540f4 | 66 | |
ff3d7ed3 | 67 | dnl Arguments to specify presence of other packages/features. |
6b7f6183 RM |
68 | AC_ARG_WITH([fp], |
69 | AC_HELP_STRING([--with-fp], | |
70 | [if using floating-point hardware @<:@default=yes@:>@]), | |
71 | [with_fp=$withval], | |
72 | [with_fp=yes]) | |
675322a5 | 73 | AC_SUBST(with_fp) |
6b7f6183 RM |
74 | AC_ARG_WITH([binutils], |
75 | AC_HELP_STRING([--with-binutils=PATH], | |
76 | [specify location of binutils (as and ld)]), | |
77 | [path_binutils=$withval], | |
78 | [path_binutils='']) | |
79 | AC_ARG_WITH([elf], | |
80 | AC_HELP_STRING([--with-elf], | |
81 | [if using the ELF object format]), | |
82 | [elf=$withval], | |
83 | [elf=no]) | |
84 | AC_ARG_WITH([xcoff], | |
85 | AC_HELP_STRING([--with-xcoff], | |
86 | [if using the XCOFF object format]), | |
87 | [xcoff=$withval], | |
88 | [xcoff=no]) | |
89 | AC_ARG_WITH([cvs], | |
90 | AC_HELP_STRING([--without-cvs], | |
91 | [if CVS should not be used]), | |
92 | [with_cvs=$withval], | |
93 | [with_cvs=yes]) | |
6b3f2b3d UD |
94 | if test "$with_cvs" = yes; then |
95 | if test -d $srcdir/CVS && grep :pserver: $srcdir/CVS/Root > /dev/null | |
96 | then | |
97 | with_cvs=no | |
98 | fi | |
4442d7e8 | 99 | fi |
4d06461a | 100 | AC_SUBST(with_cvs) |
28f540f4 | 101 | |
6b7f6183 RM |
102 | AC_ARG_WITH([headers], |
103 | AC_HELP_STRING([--with-headers=PATH], | |
104 | [location of system headers to use | |
105 | (for example /usr/src/linux/include) | |
106 | @<:@default=compiler default@:>@]), | |
107 | [sysheaders=$withval], | |
108 | [sysheaders='']) | |
dbe7a0f5 | 109 | |
6b7f6183 RM |
110 | AC_ARG_ENABLE([sanity-checks], |
111 | AC_HELP_STRING([--disable-sanity-checks], | |
112 | [really do not use threads (should not be used except in special situations) @<:@default=yes@:>@]), | |
113 | [enable_sanity=$enableval], | |
114 | [enable_sanity=yes]) | |
a18f587d | 115 | |
650425ce UD |
116 | dnl Arguments to enable or disable building the static, shared, profiled, |
117 | dnl and -fomit-frame-pointer libraries. | |
b38bb8ca UD |
118 | dnl I've disabled this for now since we cannot build glibc without static |
119 | dnl libraries built in the moment. | |
6b7f6183 RM |
120 | dnl AC_ARG_ENABLE([static], |
121 | dnl AC_HELP_STRING([--enable-static], | |
122 | dnl [build static library @<:@default=yes@:>@]), | |
123 | dnl [static=$enableval], | |
124 | dnl [static=yes]) | |
5c2a0669 | 125 | static=yes |
6b7f6183 RM |
126 | AC_ARG_ENABLE([shared], |
127 | AC_HELP_STRING([--enable-shared], | |
128 | [build shared library @<:@default=yes if GNU ld & ELF@:>@]), | |
129 | [shared=$enableval], | |
130 | [shared=default]) | |
131 | AC_ARG_ENABLE([profile], | |
132 | AC_HELP_STRING([--enable-profile], | |
133 | [build profiled library @<:@default=yes@:>@]), | |
134 | [profile=$enableval], | |
135 | [profile=yes]) | |
136 | AC_ARG_ENABLE([omitfp], | |
137 | AC_HELP_STRING([--enable-omitfp], | |
138 | [build undebuggable optimized library @<:@default=no@:>@]), | |
139 | [omitfp=$enableval], | |
140 | [omitfp=no]) | |
141 | AC_ARG_ENABLE([bounded], | |
142 | AC_HELP_STRING([--enable-bounded], | |
143 | [build with runtime bounds checking @<:@default=no@:>@]), | |
144 | [bounded=$enableval], | |
145 | [bounded=no]) | |
146 | AC_ARG_ENABLE([versioning], | |
147 | AC_HELP_STRING([--disable-versioning], | |
148 | [do not include versioning information in the library objects @<:@default=yes if supported@:>@]), | |
149 | [enable_versioning=$enableval], | |
150 | [enable_versioning=yes]) | |
151 | ||
152 | AC_ARG_ENABLE([oldest-abi], | |
153 | AC_HELP_STRING([--enable-oldest-abi=ABI], | |
154 | [configure the oldest ABI supported @<:@e.g. 2.2@:>@ @<:@default=glibc default@:>@]), | |
155 | [oldest_abi=$enableval], | |
156 | [oldest_abi=no]) | |
62ab42d6 UD |
157 | if test "$oldest_abi" = yes || test "$oldest_abi" = no; then |
158 | oldest_abi=default | |
159 | else | |
160 | AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi") | |
161 | fi | |
162 | AC_SUBST(oldest_abi) | |
163 | ||
6b3a2224 | 164 | dnl Generic infrastructure for drop-in additions to libc. |
6b7f6183 RM |
165 | AC_ARG_ENABLE([add-ons], |
166 | AC_HELP_STRING([--enable-add-ons@<:@=DIRS...@:>@], | |
167 | [configure and build add-ons in DIR1,DIR2,... search for add-ons if no parameter given]), | |
61952351 | 168 | [case "$enableval" in |
9c4c0024 UD |
169 | yes) add_ons=`cd $srcdir && echo */configure | sed -e 's!/configure!!g'` |
170 | test "$add_ons" = "*" && add_ons= ;; | |
61952351 UD |
171 | *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;; |
172 | esac], | |
173 | [add_ons=]) | |
174 | ||
8d4b5a8a | 175 | dnl Let the user avoid using TLS. Don't know why but... |
9cce206e | 176 | dnl XXX For now we disable support by default. |
6b7f6183 RM |
177 | AC_ARG_WITH([tls], |
178 | AC_HELP_STRING([--with-tls], | |
179 | [enable support for TLS]), | |
180 | [usetls=$withval], | |
181 | [usetls=no]) | |
8d4b5a8a | 182 | |
6b7f6183 RM |
183 | AC_ARG_WITH([__thread], |
184 | AC_HELP_STRING([--without-__thread], | |
185 | [do not use TLS features even when supporting them]), | |
186 | [use__thread=$withval], | |
187 | [use__thread=yes]) | |
5b8f26b4 | 188 | |
6b7f6183 RM |
189 | AC_ARG_ENABLE([hidden-plt], |
190 | AC_HELP_STRING([--disable-hidden-plt], | |
191 | [do not hide internal function calls to avoid PLT]), | |
192 | [hidden=$enableval], | |
193 | [hidden=yes]) | |
749a9a4f RM |
194 | if test "x$hidden" = xno; then |
195 | AC_DEFINE(NO_HIDDEN) | |
196 | fi | |
197 | ||
a1ceed7a | 198 | AC_CONFIG_SUBDIRS([ ])dnl Bonehead new Autoconf whines if we do it cleanly. |
57ba7bb4 | 199 | add_ons_pfx= |
da74e902 | 200 | if test x"$add_ons" != x; then |
57ba7bb4 | 201 | for f in $add_ons; do |
aa44a9de AJ |
202 | # Some sanity checks |
203 | if test "$f" = "crypt"; then | |
204 | AC_MSG_ERROR([ | |
205 | *** It seems that you're using an old \`crypt' add-on. crypt is now | |
206 | *** part of glibc and using the old add-on will not work with this | |
207 | *** release. Start again with fresh sources and without the old | |
208 | *** \`crypt' add-on.]) | |
209 | fi | |
210 | if test "$f" = "localedata"; then | |
211 | AC_MSG_ERROR([ | |
212 | *** It seems that you're using an old \`localedata' add-on. localedata | |
213 | *** is now part of glibc and using the old add-on will not work with | |
214 | *** this release. Start again with fresh sources and without the old | |
215 | *** \`localedata' add-on.]) | |
216 | fi | |
af6f3906 UD |
217 | # Test whether such a subdir really exists. |
218 | if test -d $srcdir/$f; then | |
219 | add_ons_pfx="$add_ons_pfx $f/" | |
a1ceed7a RM |
220 | dnl This variable is what AC_CONFIG_SUBDIRS is supposed to set, |
221 | dnl but the new Autoconf maintainers don't care about compatibility | |
222 | dnl so we cannot use it normally any more without complaints. | |
223 | subdirs="$subdirs $f" | |
af6f3906 UD |
224 | else |
225 | AC_MSG_ERROR(add-on directory \"$f\" does not exist) | |
226 | fi | |
57ba7bb4 UD |
227 | done |
228 | fi | |
ff3d7ed3 | 229 | |
5107cf1d UD |
230 | dnl On some platforms we cannot use dynamic loading. We must provide |
231 | dnl static NSS modules. | |
6b7f6183 RM |
232 | AC_ARG_ENABLE([static-nss], |
233 | AC_HELP_STRING([--enable-static-nss], | |
234 | [build static NSS modules @<:@default=no@:>@]), | |
235 | [static_nss=$enableval], | |
236 | [static_nss=no]) | |
834cef7c UD |
237 | dnl Enable static NSS also if we build no shared objects. |
238 | if test x"$static_nss" = xyes || test x"$shared" = xno; then | |
3172f58f | 239 | static_nss=yes |
5107cf1d UD |
240 | AC_DEFINE(DO_STATIC_NSS) |
241 | fi | |
242 | ||
6b7f6183 RM |
243 | AC_ARG_ENABLE([force-install], |
244 | AC_HELP_STRING([--disable-force-install], | |
245 | [don't force installation of files from this package, even if they are older than the installed files]), | |
246 | [force_install=$enableval], | |
247 | [force_install=yes]) | |
73237de3 UD |
248 | AC_SUBST(force_install) |
249 | ||
958f238f UD |
250 | dnl On some platforms we allow dropping compatibility with all kernel |
251 | dnl versions. | |
6b7f6183 RM |
252 | AC_ARG_ENABLE([kernel], |
253 | AC_HELP_STRING([--enable-kernel=VERSION], | |
254 | [compile for compatibility with kernel not older than VERSION]), | |
255 | [minimum_kernel=$enableval], | |
256 | []) | |
86cfe82d UD |
257 | dnl Prevent unreasonable values. |
258 | if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then | |
259 | # Better nothing than this. | |
260 | minimum_kernel="" | |
269e369f UD |
261 | else |
262 | if test "$minimum_kernel" = current; then | |
263 | minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel= | |
264 | fi | |
86cfe82d | 265 | fi |
958f238f | 266 | |
6cc7d725 UD |
267 | dnl For the development we sometimes want gcc to issue even more warnings. |
268 | dnl This is not the default since many of the extra warnings are not | |
269 | dnl appropriate. | |
6b7f6183 RM |
270 | AC_ARG_ENABLE([all-warnings], |
271 | AC_HELP_STRING([--enable-all-warnings], | |
272 | [enable all useful warnings gcc can issue]), | |
273 | [all_warnings=$enableval], | |
274 | []) | |
6cc7d725 UD |
275 | AC_SUBST(all_warnings) |
276 | ||
28f540f4 | 277 | AC_CANONICAL_HOST |
8a523922 UD |
278 | |
279 | # The way shlib-versions is used to generate soversions.mk uses a | |
280 | # fairly simplistic model for name recognition that can't distinguish | |
281 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
282 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
283 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
284 | case "$host_os" in | |
285 | linux*) | |
286 | ;; | |
287 | gnu*) | |
288 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
289 | ;; | |
290 | esac | |
291 | ||
28f540f4 RM |
292 | # We keep the original values in `$config_*' and never modify them, so we |
293 | # can write them unchanged into config.make. Everything else uses | |
294 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
295 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
296 | ||
2f64b655 UD |
297 | # Don't allow vendor == "unknown" |
298 | test "$config_vendor" = unknown && config_vendor= | |
299 | config_os="`echo $config_os | sed 's/^unknown-//'`" | |
300 | ||
a2fe9c76 RM |
301 | # Some configurations imply other options. |
302 | case "$host_os" in | |
303 | gnu* | linux* | bsd4.4* | netbsd* | freebsd*) | |
304 | # These systems always use GNU tools. | |
c8cf0b14 | 305 | gnu_ld=yes gnu_as=yes ;; |
a2fe9c76 RM |
306 | esac |
307 | case "$host_os" in | |
7799b7b3 UD |
308 | # i586-linuxaout is mangled into i586-pc-linux-gnuaout |
309 | linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*) | |
3776d592 | 310 | ;; |
ffa8d2a0 | 311 | gnu* | linux* | freebsd* | netbsd* | sysv4* | solaris2* | irix6*) |
3776d592 RM |
312 | # These systems (almost) always use the ELF format. |
313 | elf=yes | |
84724245 | 314 | ;; |
5af3245a UD |
315 | aix*) |
316 | # These systems are always xcoff | |
317 | xcoff=yes | |
a711b01d | 318 | elf=no |
5af3245a | 319 | ;; |
a2fe9c76 RM |
320 | esac |
321 | ||
28f540f4 RM |
322 | machine=$config_machine |
323 | vendor=$config_vendor | |
324 | os=$config_os | |
325 | ||
a808d541 UD |
326 | # config.guess on some IBM machines says `rs6000' instead of `powerpc'. |
327 | # Unify this here. | |
328 | if test "$machine" = rs6000; then | |
329 | machine="powerpc" | |
330 | fi | |
331 | ||
f4b07664 RM |
332 | # Braindead PowerPC box with absolutely no FPU. |
333 | case "$machine-$host_os" in | |
334 | powerpc*-*soft) | |
335 | with_fp=no | |
336 | ;; | |
337 | esac | |
338 | ||
bdc8eb03 UD |
339 | ### |
340 | ### I put this here to prevent those annoying emails from people who cannot | |
341 | ### read and try to compile glibc on unsupported platforms. --drepper | |
342 | ### | |
343 | ### By using the undocumented --enable-hacker-mode option for configure | |
344 | ### one can skip this test to make the configuration not fail for unsupported | |
345 | ### platforms. | |
346 | ### | |
347 | if test -z "$enable_hacker_mode"; then | |
348 | case "$machine-$host_os" in | |
75d86c1f | 349 | *-linux* | *-gnu* | arm*-none* | powerpc-aix4.3.*) |
bdc8eb03 UD |
350 | ;; |
351 | *) | |
352 | echo "*** The GNU C library is currently not available for this platform." | |
353 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
354 | echo "*** might never happen. So, if you have interest to see glibc on" | |
355 | echo "*** this platform visit" | |
356 | echo "*** http://www.gnu.org/software/libc/porting.html" | |
357 | echo "*** and join the group of porters" | |
358 | exit 1 | |
359 | ;; | |
360 | esac | |
361 | fi | |
362 | ||
28f540f4 RM |
363 | dnl We need to use [ and ] for other purposes for a while now. |
364 | changequote(,)dnl | |
365 | # Expand the configuration machine name into a subdirectory by architecture | |
366 | # type and particular chip. | |
367 | case "$machine" in | |
f0523145 RM |
368 | a29k | am29000) base_machine=a29k machine=a29k ;; |
369 | alpha*) base_machine=alpha machine=alpha/$machine ;; | |
0c8b61e6 | 370 | arm*) base_machine=arm machine=arm/arm32/$machine ;; |
60c96635 UD |
371 | c3[012]) base_machine=cx0 machine=cx0/c30 ;; |
372 | c4[04]) base_machine=cx0 machine=cx0/c40 ;; | |
b15cb495 UD |
373 | hppa*64*) base_machine=hppa machine=hppa/hppa64 ;; |
374 | hppa*) base_machine=hppa machine=hppa/hppa1.1 ;; | |
a8922de8 | 375 | i[3456]86) base_machine=i386 machine=i386/$machine ;; |
d64e704c | 376 | ia64) base_machine=ia64 machine=ia64 ;; |
f0523145 RM |
377 | m680?0) base_machine=m68k machine=m68k/$machine ;; |
378 | m68k) base_machine=m68k machine=m68k/m68020 ;; | |
379 | m88???) base_machine=m88k machine=m88k/$machine ;; | |
380 | m88k) base_machine=m88k machine=m88k/m88100 ;; | |
f0523145 | 381 | mips64*) base_machine=mips64 machine=mips/mips64/$machine ;; |
2b904739 | 382 | mips*) base_machine=mips machine=mips/$machine ;; |
92b27c74 UD |
383 | powerpc) base_machine=powerpc machine=powerpc/powerpc32 ;; |
384 | powerpc64) base_machine=powerpc machine=powerpc/powerpc64 ;; | |
136d4332 UD |
385 | s390) base_machine=s390 machine=s390/s390-32 ;; |
386 | s390x) base_machine=s390 machine=s390/s390-64 ;; | |
88615235 UD |
387 | sh3*) base_machine=sh machine=sh/sh3 ;; |
388 | sh4*) base_machine=sh machine=sh/sh4 ;; | |
ca34d7a7 UD |
389 | sparc | sparcv[67]) |
390 | base_machine=sparc machine=sparc/sparc32 ;; | |
391 | sparcv8 | supersparc | hypersparc) | |
392 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
ae6b8730 RH |
393 | sparcv8plus | sparcv8plusa | sparcv9) |
394 | base_machine=sparc machine=sparc/sparc32/sparcv9 ;; | |
bb769ab6 UD |
395 | sparcv8plusb | sparcv9b) |
396 | base_machine=sparc machine=sparc/sparc32/sparcv9b ;; | |
ca34d7a7 UD |
397 | sparc64 | ultrasparc) |
398 | base_machine=sparc machine=sparc/sparc64 ;; | |
bb769ab6 UD |
399 | sparc64b | ultrasparc3) |
400 | base_machine=sparc machine=sparc/sparc64/sparcv9b ;; | |
0c8b61e6 | 401 | thumb*) base_machine=thumb machine=arm/thumb/$machine ;; |
3a2832a0 | 402 | *) base_machine=$machine ;; |
28f540f4 | 403 | esac |
f0523145 RM |
404 | changequote([,])dnl |
405 | AC_SUBST(base_machine) | |
28f540f4 | 406 | |
dfd2257a UD |
407 | if test "$base_machine" = "i386"; then |
408 | AC_DEFINE(USE_REGPARMS) | |
409 | fi | |
410 | ||
f0523145 | 411 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 412 | # This can take a while to compute. |
f0523145 | 413 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 414 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
415 | dnl We need to use [ and ] for other purposes for a while now. |
416 | changequote(,)dnl | |
28f540f4 RM |
417 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
418 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
419 | ||
420 | case "$os" in | |
421 | gnu*) | |
422 | base_os=mach/hurd ;; | |
883bc19b | 423 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 424 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 425 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 426 | base_os=unix/bsd ;; |
d586354e | 427 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 428 | base_os=unix/sysv ;; |
f802accb UD |
429 | irix6*) |
430 | base_os=unix/sysv/irix6/$os ;; | |
d586354e | 431 | solaris[2-9]*) |
28f540f4 | 432 | base_os=unix/sysv/sysv4 ;; |
908c3d5b UD |
433 | hpux*) |
434 | base_os=unix/sysv/hpux/$os ;; | |
75d86c1f UD |
435 | aix4.3*) |
436 | base_os=unix/sysv/aix/aix4.3 ;; | |
28f540f4 RM |
437 | none) |
438 | base_os=standalone ;; | |
439 | *) | |
440 | base_os='' ;; | |
441 | esac | |
442 | ||
443 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
444 | tail=$os | |
445 | ostry=$os | |
446 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
447 | ostry="$ostry /$o" | |
448 | tail=$o | |
75914335 | 449 | done |
28f540f4 RM |
450 | o=`echo $tail | sed 's/[0-9]*$//'` |
451 | if test $o != $tail; then | |
452 | ostry="$ostry /$o" | |
453 | fi | |
ec4b0518 UD |
454 | # For linux-gnu, try linux-gnu, then linux. |
455 | o=`echo $tail | sed 's/-.*$//'` | |
456 | if test $o != $tail; then | |
457 | ostry="$ostry /$o" | |
458 | fi | |
28f540f4 RM |
459 | |
460 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
461 | base= | |
462 | tail=$base_os | |
463 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
464 | set $b | |
465 | base="$base /$1" | |
466 | tail="$2" | |
467 | done | |
468 | ||
ae6b8730 | 469 | # For sparc/sparc32, try sparc/sparc32 and then sparc. |
28f540f4 RM |
470 | mach= |
471 | tail=$machine | |
472 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do | |
473 | set $m | |
10ceac89 RM |
474 | # Prepend the machine's FPU directory unless --without-fp. |
475 | if test "$with_fp" = yes; then | |
476 | mach="$mach /$1/fpu" | |
f4b07664 RM |
477 | else |
478 | mach="$mach /$1/nofpu" | |
82d00cab | 479 | fi |
28f540f4 RM |
480 | mach="$mach /$1" |
481 | tail="$2" | |
482 | done | |
483 | ||
484 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
485 | changequote([,])dnl | |
486 | ||
487 | # Find what sysdep directories exist. | |
488 | sysnames= | |
57ba7bb4 UD |
489 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" |
490 | for d in $add_ons_pfx ''; do | |
491 | for b in $base ''; do | |
492 | for m0 in $mach ''; do | |
493 | for v in /$vendor ''; do | |
ae828bc6 | 494 | test "$v" = / && continue |
57ba7bb4 | 495 | for o in /$ostry ''; do |
ae828bc6 | 496 | test "$o" = / && continue |
57ba7bb4 UD |
497 | for m in $mach ''; do |
498 | if test "$m0$b$v$o$m"; then | |
499 | try="${d}sysdeps$m0$b$v$o$m" | |
500 | test -n "$enable_debug_configure" && | |
501 | echo "$0 [DEBUG]: try $try" >&2 | |
9c4c0024 | 502 | if test -d $srcdir/$try; then |
57ba7bb4 UD |
503 | sysnames="$sysnames $try" |
504 | { test -n "$o" || test -n "$b"; } && os_used=t | |
505 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
506 | fi | |
507 | fi | |
508 | done | |
28f540f4 RM |
509 | done |
510 | done | |
511 | done | |
512 | done | |
513 | done | |
57ba7bb4 | 514 | IFS="$ac_save_ifs" |
28f540f4 RM |
515 | |
516 | if test -z "$os_used" && test "$os" != none; then | |
517 | AC_MSG_ERROR(Operating system $os is not supported.) | |
518 | fi | |
519 | if test -z "$machine_used" && test "$machine" != none; then | |
520 | AC_MSG_ERROR(The $machine is not supported.) | |
521 | fi | |
522 | ||
523 | # We have now validated the configuration. | |
524 | ||
335aa320 | 525 | |
10ceac89 RM |
526 | # If using ELF, look for an `elf' subdirectory of each machine directory. |
527 | # We prepend these rather than inserting them whereever the machine appears | |
528 | # because things specified by the machine's ELF ABI should override | |
529 | # OS-specific things, and should always be the same for any OS on the | |
530 | # machine (otherwise what's the point of an ABI?). | |
531 | if test "$elf" = yes; then | |
532 | elf_dirs= | |
57ba7bb4 | 533 | for d in $add_ons_pfx ''; do |
57ba7bb4 | 534 | for m in $mach; do |
9c4c0024 | 535 | if test -d $srcdir/${d}sysdeps$m/elf; then |
c2bb8cab | 536 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" |
57ba7bb4 UD |
537 | fi |
538 | done | |
28f540f4 | 539 | done |
57ba7bb4 | 540 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" |
28f540f4 RM |
541 | fi |
542 | ||
335aa320 | 543 | |
28f540f4 RM |
544 | # Expand the list of system names into a full list of directories |
545 | # from each element's parent name and Implies file (if present). | |
546 | set $sysnames | |
e50ec9f9 | 547 | names= |
28f540f4 RM |
548 | while test $# -gt 0; do |
549 | name=$1 | |
550 | shift | |
551 | ||
e50ec9f9 | 552 | case " $names " in *" $name "*) |
f332db02 RM |
553 | # Already in the list. |
554 | continue | |
e50ec9f9 | 555 | esac |
f332db02 RM |
556 | |
557 | # Report each name as we discover it, so there is no long pause in output. | |
0b4ee387 | 558 | echo $ECHO_N "$name $ECHO_C" >&AS_MESSAGE_FD |
f332db02 | 559 | |
57ba7bb4 UD |
560 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
561 | ||
562 | case $name in | |
563 | /*) xsrcdir= ;; | |
564 | *) xsrcdir=$srcdir/ ;; | |
565 | esac | |
566 | test -n "$enable_debug_configure" && | |
567 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
568 | ||
569 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 570 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
571 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
572 | implied= | |
573 | for x in $implied_candidate; do | |
636ccfc8 | 574 | found=no |
57ba7bb4 UD |
575 | if test -d $xsrcdir$name_base/$x; then |
576 | implied="$implied $name_base/$x"; | |
636ccfc8 UD |
577 | found=yes |
578 | fi | |
579 | for d in $add_ons_pfx ''; do | |
580 | try="${d}sysdeps/$x" | |
581 | case $d in | |
582 | /*) try_srcdir= ;; | |
583 | *) try_srcdir=$srcdir/ ;; | |
584 | esac | |
585 | test -n "$enable_debug_configure" && | |
586 | echo "[DEBUG]: $name implied $x try($d) {$try_srcdir}$try" >&2 | |
587 | if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try; | |
588 | then | |
589 | implied="$implied $try" | |
590 | found=yes | |
591 | fi | |
592 | done | |
593 | if test $found = no; then | |
57ba7bb4 UD |
594 | AC_MSG_WARN($name/Implies specifies nonexistent $x) |
595 | fi | |
28f540f4 RM |
596 | done |
597 | else | |
598 | implied= | |
599 | fi | |
600 | ||
601 | # Add NAME to the list of names. | |
602 | names="$names $name" | |
603 | ||
604 | # Find the parent of NAME, using the empty string if it has none. | |
605 | changequote(,)dnl | |
57ba7bb4 | 606 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
607 | changequote([,])dnl |
608 | ||
609 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
610 | # the list of names to be processed (the argument list). We prepend the | |
611 | # implied names to the list and append the parent. We want implied | |
612 | # directories to come before further directories inferred from the | |
613 | # configuration components; this ensures that for sysv4, unix/common | |
614 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
615 | # after sysv4). | |
616 | sysnames="`echo $implied $* $parent`" | |
617 | test -n "$sysnames" && set $sysnames | |
618 | done | |
619 | ||
620 | # Add the default directories. | |
ecdc196c | 621 | default_sysnames=sysdeps/generic |
2de7874e | 622 | if test "$elf" = yes; then |
ecdc196c | 623 | default_sysnames="sysdeps/generic/elf $default_sysnames" |
2de7874e | 624 | fi |
ecdc196c | 625 | sysnames="$names $default_sysnames" |
f332db02 RM |
626 | AC_SUBST(sysnames) |
627 | # The other names were emitted during the scan. | |
ecdc196c | 628 | AC_MSG_RESULT($default_sysnames) |
28f540f4 | 629 | |
f332db02 RM |
630 | |
631 | ### Locate tools. | |
28f540f4 | 632 | |
28f540f4 | 633 | AC_PROG_INSTALL |
2b80a372 | 634 | if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then |
28f540f4 | 635 | # The makefiles need to use a different form to find it in $srcdir. |
2b80a372 | 636 | INSTALL='\$(..)./scripts/install-sh -c' |
28f540f4 | 637 | fi |
0e3426bb | 638 | AC_PROG_LN_S |
ae828bc6 | 639 | |
4baa087a RM |
640 | AC_PROG_CC |
641 | if test $host != $build; then | |
642 | AC_CHECK_PROGS(BUILD_CC, gcc cc) | |
643 | fi | |
644 | AC_SUBST(cross_compiling) | |
645 | AC_PROG_CPP | |
646 | LIBC_PROG_BINUTILS | |
647 | AC_SUBST(MIG)dnl Needed by sysdeps/mach/configure.in | |
648 | ||
649 | # Accept binutils 2.13 or newer. | |
650 | AC_CHECK_PROG_VER(AS, $AS, --version, | |
651 | [GNU assembler.* \([0-9]*\.[0-9.]*\)], | |
652 | [2.1[3-9]*], AS=: critic_missing=t) | |
653 | AC_CHECK_PROG_VER(LD, $LD, --version, | |
654 | [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)], | |
655 | [2.1[3-9]*], LD=: critic_missing=t) | |
656 | ||
a4301d41 UD |
657 | # We need the physical current working directory. We cannot use the |
658 | # "pwd -P" shell builtin since that's not portable. Instead we try to | |
659 | # find a pwd binary. Note that assigning to the PWD environment | |
660 | # variable might have some interesting side effects, so we don't do | |
661 | # that. | |
662 | AC_PATH_PROG(PWD_P, pwd, no) | |
663 | if test "$PWD_P" = no; then | |
664 | AC_MSG_ERROR(*** A pwd binary could not be found.) | |
665 | fi | |
666 | ||
63bda0c1 | 667 | # These programs are version sensitive. |
3a12e572 | 668 | AC_CHECK_TOOL_PREFIX |
4bca4c17 | 669 | AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, |
90d1d40b RM |
670 | [version \([egcygnustpi-]*[0-9.]*\)], [3.[2-9]*], |
671 | critic_missing="$critic_missing gcc") | |
22e65f8f | 672 | AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version, |
8fc1e2ca | 673 | [GNU Make[^0-9]*\([0-9][0-9.]*\)], |
6b4e880f | 674 | [3.79* | 3.[89]*], critic_missing="$critic_missing make") |
63bda0c1 | 675 | |
22e65f8f | 676 | AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version, |
bdd421cc | 677 | [GNU gettext.* \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
678 | [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*], |
679 | MSGFMT=: aux_missing="$aux_missing msgfmt") | |
63bda0c1 | 680 | AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
8b7fb588 | 681 | [GNU texinfo.* \([0-9][0-9.]*\)], |
aefdff34 RM |
682 | [4.*], |
683 | MAKEINFO=: aux_missing="$aux_missing makeinfo") | |
d6a97a28 | 684 | AC_CHECK_PROG_VER(SED, sed, --version, |
aec103d3 | 685 | [GNU sed version \([0-9]*\.[0-9.]*\)], |
aefdff34 RM |
686 | [3.0[2-9]*|3.[1-9]*|[4-9]*], |
687 | SED=: aux_missing="$aux_missing sed") | |
63bda0c1 | 688 | |
14519931 RM |
689 | if test "x$with_cvs" != xyes; then |
690 | AC_CHECK_PROGS(AUTOCONF, autoconf, no) | |
691 | case "x$AUTOCONF" in | |
692 | xno|x|x:) AUTOCONF=no ;; | |
693 | *) | |
694 | AC_CACHE_CHECK(dnl | |
1400de2e | 695 | whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works, libc_cv_autoconf_works, [dnl |
14519931 RM |
696 | if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then |
697 | libc_cv_autoconf_works=yes | |
698 | else | |
699 | libc_cv_autoconf_works=no | |
700 | fi]) | |
701 | test $libc_cv_autoconf_works = yes || AUTOCONF=no | |
702 | ;; | |
703 | esac | |
704 | test "x$AUTOCONF" != xno || aux_missing="$aux_missing autoconf" | |
705 | fi | |
1400de2e | 706 | |
32a448ed RM |
707 | test -n "$critic_missing" && AC_MSG_ERROR([ |
708 | *** These critical programs are missing or too old:$critic_missing | |
709 | *** Check the INSTALL file for required versions.]) | |
710 | ||
4bca4c17 | 711 | test -n "$aux_missing" && AC_MSG_WARN([ |
9c6fffc0 | 712 | *** These auxiliary programs are missing or incompatible versions:$aux_missing |
63bda0c1 UD |
713 | *** some features will be disabled. |
714 | *** Check the INSTALL file for required versions.]) | |
28f540f4 | 715 | |
d01d6319 UD |
716 | # glibcbug.in wants to know the compiler version. |
717 | CCVERSION=`$CC -v 2>&1 | sed -n 's/gcc version //p'` | |
718 | AC_SUBST(CCVERSION) | |
719 | ||
dbe7a0f5 UD |
720 | # if using special system headers, find out the compiler's sekrit |
721 | # header directory and add that to the list. NOTE: Only does the right | |
722 | # thing on a system that doesn't need fixincludes. (Not presently a problem.) | |
723 | if test -n "$sysheaders"; then | |
724 | ccheaders=`$CC -print-file-name=include` | |
725 | SYSINCLUDES="-nostdinc -isystem $ccheaders -isystem $sysheaders" | |
726 | fi | |
727 | AC_SUBST(SYSINCLUDES) | |
728 | ||
97a47867 UD |
729 | # check if ranlib is necessary |
730 | AC_CACHE_CHECK(whether ranlib is necessary, libc_cv_ranlib_necessary, [dnl | |
731 | cat > conftest.c <<EOF | |
732 | int a; | |
733 | char b; | |
734 | void c(void) {} | |
735 | EOF | |
736 | $CC $CFLAGS -c conftest.c | |
72d4c33d | 737 | $AR cr conftest.a conftest.o |
97a47867 UD |
738 | cp conftest.a conftest2.a |
739 | $RANLIB conftest.a | |
740 | if cmp -s conftest.a conftest2.a; then | |
741 | libc_cv_ranlib_necessary=no | |
f38931a9 | 742 | else |
97a47867 UD |
743 | libc_cv_ranlib_necessary=yes |
744 | fi | |
745 | rm -rf conftest*]) | |
746 | if test "$libc_cv_ranlib_necessary" = no; then | |
747 | RANLIB=: | |
f38931a9 | 748 | fi |
f38931a9 | 749 | |
3911660e UD |
750 | # Test if LD_LIBRARY_PATH contains the notation for the current directory |
751 | # since this would lead to problems installing/building glibc. | |
752 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
753 | # is true: | |
754 | # - one of the terminals (":" and ";") is the first or last sign | |
755 | # - two terminals occur directly after each other | |
756 | # - the path contains an element with a dot in it | |
757 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
758 | changequote(,)dnl | |
759 | case ${LD_LIBRARY_PATH} in | |
760 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
b3a86ae1 | 761 | ld_library_path_setting="contains current directory" |
3911660e UD |
762 | ;; |
763 | *) | |
764 | ld_library_path_setting="ok" | |
765 | ;; | |
766 | esac | |
767 | changequote([,])dnl | |
768 | AC_MSG_RESULT($ld_library_path_setting) | |
769 | if test "$ld_library_path_setting" != "ok"; then | |
63bda0c1 UD |
770 | AC_MSG_ERROR([ |
771 | *** LD_LIBRARY_PATH shouldn't contain the current directory when | |
772 | *** building glibc. Please change the environment variable | |
773 | *** and run configure again.]) | |
3911660e | 774 | fi |
8e31cf7e | 775 | |
74bd2300 UD |
776 | AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl |
777 | if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then | |
778 | libc_cv_gcc_static_libgcc= | |
779 | else | |
780 | libc_cv_gcc_static_libgcc=-static-libgcc | |
781 | fi]) | |
782 | AC_SUBST(libc_cv_gcc_static_libgcc) | |
783 | ||
84384f5b | 784 | AC_PATH_PROG(BASH, bash, no) |
a18f587d | 785 | if test "$BASH" != no && |
f43ce637 | 786 | $BASH -c 'test "$BASH_VERSINFO" \ |
6973fc01 | 787 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
788 | libc_cv_have_bash2=yes |
789 | else | |
790 | libc_cv_have_bash2=no | |
791 | fi | |
792 | AC_SUBST(libc_cv_have_bash2) | |
793 | ||
5290baf0 UD |
794 | dnl We need a ksh compatible shell for tzselect. |
795 | if test "$BASH" = no; then | |
796 | AC_PATH_PROG(KSH, ksh, no) | |
797 | if test "$KSH" = no; then | |
798 | libc_cv_have_ksh=no | |
799 | else | |
800 | libc_cv_have_ksh=yes | |
801 | fi | |
802 | else | |
803 | KSH="$BASH" | |
804 | AC_SUBST(KSH) | |
805 | libc_cv_have_ksh=yes | |
806 | fi | |
807 | AC_SUBST(libc_cv_have_ksh) | |
808 | ||
5aa8ff62 | 809 | AC_PROG_AWK |
c0016081 | 810 | AC_PATH_PROG(PERL, perl, no) |
2fd5d029 RM |
811 | if test "$PERL" != no && |
812 | (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then | |
813 | PERL=no | |
ecb06196 | 814 | fi |
2f512715 AS |
815 | AC_PATH_PROG(INSTALL_INFO, install-info, no, |
816 | $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin) | |
c0016081 UD |
817 | if test "$INSTALL_INFO" != "no"; then |
818 | AC_CACHE_CHECK(for old Debian install-info, libc_cv_old_debian_install_info, | |
819 | [mkdir conftest.d | |
820 | # There is a hard ^_ on the next line. I am open to better ideas. | |
821 | (echo '\1f' | |
822 | echo 'File: dir Node: Top This is the top of the INFO tree' | |
823 | echo '* Menu:') >conftest.d/dir | |
824 | (echo 'INFO-DIR-SECTION i-d-s works' | |
825 | echo 'START-INFO-DIR-ENTRY' | |
826 | echo '* Prog: (prog). Program.' | |
827 | echo 'END-INFO-DIR-ENTRY') >conftest.d/prog.info | |
c2f55635 | 828 | if $INSTALL_INFO --info-dir=conftest.d conftest.d/prog.info >&AS_MESSAGE_LOG_FD 2>&1 |
d8cceb4f | 829 | then |
c0016081 UD |
830 | if grep -s 'i-d-s works' conftest.d/dir >/dev/null |
831 | then libc_cv_old_debian_install_info=no | |
832 | else libc_cv_old_debian_install_info=yes | |
833 | fi | |
834 | else libc_cv_old_debian_install_info=no testfailed=t | |
835 | fi | |
836 | rm -fr conftest.d]) | |
837 | if test -n "$testfailed" | |
838 | then AC_MSG_WARN([install-info errored out, check config.log]) | |
839 | fi | |
840 | OLD_DEBIAN_INSTALL_INFO=$libc_cv_old_debian_install_info | |
841 | fi | |
842 | AC_SUBST(OLD_DEBIAN_INSTALL_INFO) | |
a2b08ee5 | 843 | |
2de00372 UD |
844 | AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin) |
845 | ||
b8dc6a10 | 846 | AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl |
28f540f4 RM |
847 | echo '#include <stddef.h> |
848 | FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c | |
849 | if eval "$ac_cpp conftest.c 2>/dev/null" \ | |
850 | | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then | |
851 | libc_cv_signed_size_t=no | |
852 | else | |
853 | libc_cv_signed_size_t=yes | |
854 | fi | |
855 | rm -f conftest*]) | |
28f540f4 RM |
856 | if test $libc_cv_signed_size_t = yes; then |
857 | dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings. | |
858 | cat >> confdefs.h <<\EOF | |
859 | #undef __SIZE_TYPE__ | |
860 | #define __SIZE_TYPE__ unsigned | |
861 | EOF | |
862 | fi | |
863 | ||
b8dc6a10 | 864 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
865 | AC_TRY_COMPILE(dnl |
866 | [#define __need_size_t | |
867 | #define __need_wchar_t | |
868 | #include <stddef.h> | |
869 | #define __need_NULL | |
870 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
871 | #ifdef offsetof | |
872 | #error stddef.h ignored __need_* | |
873 | #endif | |
874 | if (&size == NULL || &wchar == NULL) abort ();], | |
875 | libc_cv_friendly_stddef=yes, | |
876 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
877 | if test $libc_cv_friendly_stddef = yes; then |
878 | config_vars="$config_vars | |
879 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
880 | fi | |
881 | ||
b8dc6a10 RM |
882 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
883 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
884 | cat > conftest.S <<EOF |
885 | #include "confdefs.h" | |
886 | /* Nothing whatsoever. */ | |
887 | EOF | |
61cea1c3 | 888 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.S 1>&AS_MESSAGE_LOG_FD); then |
28f540f4 RM |
889 | libc_cv_need_minus_P=no |
890 | else | |
891 | libc_cv_need_minus_P=yes | |
892 | fi | |
893 | rm -f conftest*]) | |
28f540f4 RM |
894 | if test $libc_cv_need_minus_P = yes; then |
895 | config_vars="$config_vars | |
896 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
897 | fi | |
898 | ||
2293395f UD |
899 | AC_MSG_CHECKING(whether .text pseudo-op must be used) |
900 | AC_CACHE_VAL(libc_cv_dot_text, [dnl | |
901 | cat > conftest.s <<EOF | |
902 | .text | |
903 | EOF | |
904 | libc_cv_dot_text= | |
61cea1c3 | 905 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
2293395f UD |
906 | libc_cv_dot_text=.text |
907 | fi | |
908 | rm -f conftest*]) | |
909 | if test -z "$libc_cv_dot_text"; then | |
910 | AC_MSG_RESULT(no) | |
911 | else | |
912 | AC_MSG_RESULT(yes) | |
913 | fi | |
914 | ||
b8dc6a10 RM |
915 | AC_CACHE_CHECK(for assembler global-symbol directive, |
916 | libc_cv_asm_global_directive, [dnl | |
9a70fcab | 917 | libc_cv_asm_global_directive=UNKNOWN |
908c3d5b | 918 | for ac_globl in .globl .global .EXPORT; do |
9a70fcab | 919 | cat > conftest.s <<EOF |
2293395f | 920 | ${libc_cv_dot_text} |
908c3d5b | 921 | ${ac_globl} foo |
ae1025be | 922 | foo: |
9a70fcab | 923 | EOF |
61cea1c3 | 924 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a70fcab UD |
925 | libc_cv_asm_global_directive=${ac_globl} |
926 | fi | |
927 | rm -f conftest* | |
928 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
929 | done]) | |
9a70fcab UD |
930 | if test $libc_cv_asm_global_directive = UNKNOWN; then |
931 | AC_MSG_ERROR(cannot determine asm global directive) | |
932 | else | |
933 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
934 | fi | |
935 | ||
b8dc6a10 | 936 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 937 | cat > conftest.s <<EOF |
2293395f | 938 | ${libc_cv_dot_text} |
ae1025be | 939 | foo: |
df2a0c93 | 940 | .set glibc_conftest_frobozz,foo |
9a70fcab | 941 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 942 | EOF |
df2a0c93 RM |
943 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
944 | # (but it doesn't work), so we must do a linking check to be sure. | |
945 | cat > conftest1.c <<\EOF | |
946 | extern int glibc_conftest_frobozz; | |
947 | main () { printf ("%d\n", glibc_conftest_frobozz); } | |
948 | EOF | |
949 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
0b4ee387 | 950 | -o conftest conftest.s conftest1.c 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
e215c478 RM |
951 | libc_cv_asm_set_directive=yes |
952 | else | |
953 | libc_cv_asm_set_directive=no | |
954 | fi | |
65b3cbcb | 955 | rm -f conftest*]) |
e215c478 RM |
956 | if test $libc_cv_asm_set_directive = yes; then |
957 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
958 | fi | |
959 | ||
b88ac073 RM |
960 | AC_CACHE_CHECK(for assembler .type directive prefix, |
961 | libc_cv_asm_type_prefix, [dnl | |
962 | libc_cv_asm_type_prefix=no | |
963 | for ac_try_prefix in '@' '%' '#'; do | |
964 | cat > conftest.s <<EOF | |
965 | ${libc_cv_dot_text} | |
966 | ${libc_cv_asm_global_directive} foo | |
967 | .type foo, ${ac_try_prefix}object | |
968 | .size foo, 1 | |
969 | foo: | |
970 | .byte 1 | |
971 | EOF | |
61cea1c3 | 972 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
b88ac073 RM |
973 | libc_cv_asm_type_prefix=${ac_try_prefix} |
974 | fi | |
975 | rm -f conftest* | |
976 | test "x$libc_cv_asm_type_prefix" != xno && break | |
977 | done]) | |
978 | if test "x$libc_cv_asm_type_prefix" != xno; then | |
979 | AC_DEFINE_UNQUOTED(ASM_TYPE_DIRECTIVE_PREFIX, ${libc_cv_asm_type_prefix}) | |
980 | fi | |
981 | ||
2aa15430 | 982 | # The Aix ld uses global .symbol_names instead of symbol_names. |
92b27c74 UD |
983 | # Unfortunately also used in the PPC64 ELF ABI. |
984 | case "${os}${machine}" in | |
985 | aix4.3* | linux*powerpc/powerpc64*) | |
2aa15430 UD |
986 | AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME) |
987 | esac | |
988 | ||
377a515b UD |
989 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
990 | [cat > conftest.s <<EOF | |
2293395f | 991 | ${libc_cv_dot_text} |
4cca6b86 | 992 | _sym: |
377a515b UD |
993 | .symver _sym,sym@VERS |
994 | EOF | |
0b4ee387 | 995 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
377a515b UD |
996 | libc_cv_asm_symver_directive=yes |
997 | else | |
998 | libc_cv_asm_symver_directive=no | |
999 | fi | |
1000 | rm -f conftest*]) | |
1001 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
1002 | if test $libc_cv_asm_symver_directive = yes; then | |
1003 | cat > conftest.s <<EOF | |
2293395f | 1004 | ${libc_cv_dot_text} |
4cca6b86 | 1005 | _sym: |
377a515b UD |
1006 | .symver _sym,sym@VERS |
1007 | EOF | |
1008 | cat > conftest.map <<EOF | |
f43ce637 | 1009 | VERS_1 { |
377a515b UD |
1010 | global: sym; |
1011 | }; | |
f43ce637 UD |
1012 | |
1013 | VERS_2 { | |
1014 | global: sym; | |
1015 | } VERS_1; | |
377a515b | 1016 | EOF |
0b4ee387 | 1017 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then |
5ae3e846 UD |
1018 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o |
1019 | -nostartfiles -nostdlib | |
ae1025be | 1020 | -Wl,--version-script,conftest.map |
c2f55635 | 1021 | 1>&AS_MESSAGE_LOG_FD]); |
377a515b UD |
1022 | then |
1023 | libc_cv_ld_version_script_option=yes | |
1024 | else | |
1025 | libc_cv_ld_version_script_option=no | |
1026 | fi | |
1027 | else | |
1028 | libc_cv_ld_version_script_option=no | |
1029 | fi | |
1030 | else | |
1031 | libc_cv_ld_version_script_option=no | |
1032 | fi | |
1033 | rm -f conftest*]) | |
7499a22a RM |
1034 | if test $shared != no && |
1035 | test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
1036 | test $libc_cv_ld_version_script_option = yes && |
1037 | test $enable_versioning = yes; then | |
377a515b UD |
1038 | VERSIONING=yes |
1039 | AC_DEFINE(DO_VERSIONING) | |
1040 | else | |
1041 | VERSIONING=no | |
1042 | fi | |
1043 | AC_SUBST(VERSIONING) | |
1044 | ||
102a3e8f | 1045 | if test $elf = yes && test $shared != no && test $VERSIONING = no; then |
f43ce637 | 1046 | echo "\ |
f4017d20 | 1047 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
1048 | *** versioning will introduce incompatibilities so that old binaries |
1049 | *** will not run anymore. | |
50304ef0 | 1050 | *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)." |
f43ce637 | 1051 | fi |
fd26970f UD |
1052 | if test $elf = yes; then |
1053 | AC_CACHE_CHECK(for .previous assembler directive, | |
1054 | libc_cv_asm_previous_directive, [dnl | |
1055 | cat > conftest.s <<EOF | |
1056 | .section foo_section | |
1057 | .previous | |
1058 | EOF | |
c2f55635 | 1059 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
fd26970f UD |
1060 | libc_cv_asm_previous_directive=yes |
1061 | else | |
1062 | libc_cv_asm_previous_directive=no | |
1063 | fi | |
1064 | rm -f conftest*]) | |
1065 | if test $libc_cv_asm_previous_directive = yes; then | |
1066 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
1067 | else | |
1068 | AC_CACHE_CHECK(for .popsection assembler directive, | |
1069 | libc_cv_asm_popsection_directive, [dnl | |
1070 | cat > conftest.s <<EOF | |
1071 | .pushsection foo_section | |
1072 | .popsection | |
1073 | EOF | |
c2f55635 | 1074 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
fd26970f UD |
1075 | libc_cv_asm_popsection_directive=yes |
1076 | else | |
1077 | libc_cv_asm_popsection_directive=no | |
1078 | fi | |
1079 | rm -f conftest*]) | |
1080 | if test $libc_cv_asm_popsection_directive = yes; then | |
1081 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
1082 | fi | |
1083 | fi | |
2d499f55 UD |
1084 | AC_CACHE_CHECK(for .protected and .hidden assembler directive, |
1085 | libc_cv_asm_protected_directive, [dnl | |
1086 | cat > conftest.s <<EOF | |
1087 | .protected foo | |
1088 | foo: | |
1089 | .hidden bar | |
1090 | bar: | |
1091 | EOF | |
c2f55635 | 1092 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
2d499f55 UD |
1093 | libc_cv_asm_protected_directive=yes |
1094 | else | |
1095 | libc_cv_asm_protected_directive=no | |
1096 | fi | |
1097 | rm -f conftest*]) | |
1098 | AC_SUBST(libc_cv_asm_protected_directive) | |
5688da55 | 1099 | AC_DEFINE(HAVE_PROTECTED) |
9bd64602 | 1100 | AC_DEFINE(HAVE_HIDDEN) |
0fb7851f | 1101 | |
0d01dace UD |
1102 | if test $libc_cv_asm_protected_directive = yes; then |
1103 | AC_CACHE_CHECK(whether __attribute__((visibility())) is supported, | |
1104 | libc_cv_visibility_attribute, | |
1105 | [cat > conftest.c <<EOF | |
1106 | int foo __attribute__ ((visibility ("hidden"))) = 1; | |
1107 | int bar __attribute__ ((visibility ("protected"))) = 1; | |
1108 | EOF | |
1109 | libc_cv_visibility_attribute=no | |
61cea1c3 | 1110 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
0d01dace UD |
1111 | if grep '\.hidden.*foo' conftest.s >/dev/null; then |
1112 | if grep '\.protected.*bar' conftest.s >/dev/null; then | |
1113 | libc_cv_visibility_attribute=yes | |
1114 | fi | |
1115 | fi | |
1116 | fi | |
1117 | rm -f conftest.[cs] | |
1118 | ]) | |
1119 | if test $libc_cv_visibility_attribute = yes; then | |
1120 | AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE) | |
1121 | fi | |
1122 | fi | |
1123 | ||
37ba7d66 UD |
1124 | if test $libc_cv_visibility_attribute = yes; then |
1125 | AC_CACHE_CHECK(for broken __attribute__((visibility())), | |
1126 | libc_cv_broken_visibility_attribute, | |
1127 | [cat > conftest.c <<EOF | |
1128 | int foo (int x); | |
1129 | int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden"))); | |
1130 | int bar (int x) { return x; } | |
1131 | EOF | |
1132 | libc_cv_broken_visibility_attribute=yes | |
61cea1c3 | 1133 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s1>&AS_MESSAGE_LOG_FD); then |
37ba7d66 UD |
1134 | changequote(,)dnl |
1135 | if grep '\.hidden[ _]foo' conftest.s >/dev/null; then | |
1136 | changequote([,])dnl | |
1137 | libc_cv_broken_visibility_attribute=no | |
1138 | fi | |
1139 | fi | |
1140 | rm -f conftest.c conftest.s | |
1141 | ]) | |
1142 | if test $libc_cv_broken_visibility_attribute = yes; then | |
1143 | AC_DEFINE(HAVE_BROKEN_VISIBILITY_ATTRIBUTE) | |
1144 | fi | |
1145 | fi | |
1146 | ||
1147 | AC_CACHE_CHECK(for broken __attribute__((alias())), | |
1148 | libc_cv_broken_alias_attribute, | |
1149 | [cat > conftest.c <<EOF | |
1150 | extern int foo (int x) __asm ("xyzzy"); | |
1151 | int bar (int x) { return x; } | |
48b8e846 UD |
1152 | extern __typeof (bar) foo __attribute ((weak, alias ("bar"))); |
1153 | extern int dfoo; | |
1154 | extern __typeof (dfoo) dfoo __asm ("abccb"); | |
1155 | int dfoo = 1; | |
37ba7d66 UD |
1156 | EOF |
1157 | libc_cv_broken_alias_attribute=yes | |
61cea1c3 | 1158 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
48b8e846 UD |
1159 | if grep 'xyzzy' conftest.s >/dev/null && |
1160 | grep 'abccb' conftest.s >/dev/null; then | |
37ba7d66 UD |
1161 | libc_cv_broken_alias_attribute=no |
1162 | fi | |
1163 | fi | |
1164 | rm -f conftest.c conftest.s | |
1165 | ]) | |
1166 | if test $libc_cv_broken_alias_attribute = yes; then | |
1167 | AC_DEFINE(HAVE_BROKEN_ALIAS_ATTRIBUTE) | |
1168 | fi | |
1169 | ||
0d01dace UD |
1170 | if test $libc_cv_visibility_attribute = yes -a $gnu_ld = yes; then |
1171 | AC_CACHE_CHECK(whether to put _rtld_local into .sdata section, | |
1172 | libc_cv_have_sdata_section, | |
1173 | [echo "int i;" > conftest.c | |
1174 | libc_cv_have_sdata_section=no | |
1175 | if ${CC-cc} -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \ | |
1176 | | grep '\.sdata' >/dev/null; then | |
1177 | libc_cv_have_sdata_section=yes | |
1178 | fi | |
1179 | rm -f conftest.c conftest.so | |
1180 | ]) | |
1181 | if test $libc_cv_have_sdata_section = yes; then | |
1182 | AC_DEFINE(HAVE_SDATA_SECTION) | |
1183 | fi | |
1184 | fi | |
1185 | ||
5241882c UD |
1186 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, |
1187 | libc_cv_initfinit_array, [dnl | |
1188 | cat > conftest.c <<EOF | |
1189 | int _start (void) { return 0; } | |
1190 | int __start (void) { return 0; } | |
1191 | int foo (void) { return 1; } | |
2c617417 | 1192 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo; |
5241882c UD |
1193 | EOF |
1194 | if AC_TRY_COMMAND([${CC-cc} -o conftest conftest.c | |
c2f55635 | 1195 | -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD]) |
5241882c UD |
1196 | then |
1197 | if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then | |
1198 | libc_cv_initfinit_array=yes | |
1199 | else | |
1200 | libc_cv_initfinit_array=no | |
1201 | fi | |
1202 | else | |
1203 | libc_cv_initfinit_array=no | |
1204 | fi | |
1205 | rm -f conftest*]) | |
1206 | AC_SUBST(libc_cv_initfinit_array) | |
1207 | if test $libc_cv_initfinit_array = yes; then | |
1208 | AC_DEFINE(HAVE_INITFINI_ARRAY) | |
1209 | fi | |
1210 | ||
0fb7851f UD |
1211 | AC_CACHE_CHECK(for -z nodelete option, |
1212 | libc_cv_z_nodelete, [dnl | |
1213 | cat > conftest.c <<EOF | |
1214 | int _start (void) { return 42; } | |
1215 | EOF | |
35cd3c97 AJ |
1216 | if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c |
1217 | -nostartfiles -nostdlib | |
c2f55635 | 1218 | -Wl,--enable-new-dtags,-z,nodelete 1>&AS_MESSAGE_LOG_FD]) |
0fb7851f UD |
1219 | then |
1220 | libc_cv_z_nodelete=yes | |
1221 | else | |
1222 | libc_cv_z_nodelete=no | |
1223 | fi | |
1224 | rm -f conftest*]) | |
1225 | AC_SUBST(libc_cv_z_nodelete) | |
2f54c82d UD |
1226 | |
1227 | AC_CACHE_CHECK(for -z nodlopen option, | |
1228 | libc_cv_z_nodlopen, [dnl | |
1229 | cat > conftest.c <<EOF | |
1230 | int _start (void) { return 42; } | |
1231 | EOF | |
35cd3c97 AJ |
1232 | if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c |
1233 | -nostartfiles -nostdlib | |
c2f55635 | 1234 | -Wl,--enable-new-dtags,-z,nodlopen 1>&AS_MESSAGE_LOG_FD]) |
2f54c82d UD |
1235 | then |
1236 | libc_cv_z_nodlopen=yes | |
1237 | else | |
1238 | libc_cv_z_nodlopen=no | |
1239 | fi | |
1240 | rm -f conftest*]) | |
1241 | AC_SUBST(libc_cv_z_nodlopen) | |
5d916713 UD |
1242 | |
1243 | AC_CACHE_CHECK(for -z initfirst option, | |
1244 | libc_cv_z_initfirst, [dnl | |
1245 | cat > conftest.c <<EOF | |
1246 | int _start (void) { return 42; } | |
1247 | EOF | |
35cd3c97 AJ |
1248 | if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c |
1249 | -nostartfiles -nostdlib | |
c2f55635 | 1250 | -Wl,--enable-new-dtags,-z,initfirst 1>&AS_MESSAGE_LOG_FD]) |
5d916713 UD |
1251 | then |
1252 | libc_cv_z_initfirst=yes | |
1253 | else | |
1254 | libc_cv_z_initfirst=no | |
1255 | fi | |
1256 | rm -f conftest*]) | |
1257 | AC_SUBST(libc_cv_z_initfirst) | |
639c3248 UD |
1258 | |
1259 | AC_CACHE_CHECK(for -Bgroup option, | |
1260 | libc_cv_Bgroup, [dnl | |
1261 | cat > conftest.c <<EOF | |
1262 | int _start (void) { return 42; } | |
1263 | EOF | |
c2f55635 | 1264 | if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&AS_MESSAGE_LOG_FD]) |
639c3248 UD |
1265 | then |
1266 | libc_cv_Bgroup=yes | |
1267 | else | |
1268 | libc_cv_Bgroup=no | |
1269 | fi | |
1270 | rm -f conftest*]) | |
1271 | AC_SUBST(libc_cv_Bgroup) | |
a711b01d UD |
1272 | |
1273 | AC_CACHE_CHECK(for -z combreloc, | |
1274 | libc_cv_z_combreloc, [dnl | |
1275 | cat > conftest.c <<EOF | |
d555194c UD |
1276 | extern int bar (int); |
1277 | extern int mumble; | |
1278 | int foo (void) { return bar (mumble); } | |
a711b01d | 1279 | EOF |
35cd3c97 AJ |
1280 | if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c |
1281 | -nostdlib -nostartfiles | |
c2f55635 | 1282 | -Wl,-z,combreloc 1>&AS_MESSAGE_LOG_FD]) |
a711b01d UD |
1283 | then |
1284 | dnl The following test is a bit weak. We must use a tool which can test | |
1285 | dnl cross-platform since the gcc used can be a cross compiler. Without | |
1286 | dnl introducing new options this is not easily doable. Instead use a tool | |
1287 | dnl which always is cross-platform: readelf. To detect whether -z combreloc | |
1288 | dnl look for a section named .rel.dyn. | |
fdde8349 UD |
1289 | if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then |
1290 | libc_cv_z_combreloc=yes | |
1291 | else | |
1292 | libc_cv_z_combreloc=no | |
a711b01d | 1293 | fi |
fdde8349 UD |
1294 | else |
1295 | libc_cv_z_combreloc=no | |
a711b01d UD |
1296 | fi |
1297 | rm -f conftest*]) | |
fdde8349 UD |
1298 | if test "$libc_cv_z_combreloc" = yes; then |
1299 | AC_DEFINE(HAVE_Z_COMBRELOC) | |
1300 | fi | |
fd26970f | 1301 | fi |
f13df7c7 | 1302 | AC_SUBST(libc_cv_z_combreloc) |
fd26970f | 1303 | |
b8dc6a10 RM |
1304 | if test $elf != yes; then |
1305 | AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini, | |
1306 | [AC_TRY_COMPILE(, [asm (".section .init"); | |
84724245 | 1307 | asm (".section .fini"); |
2293395f | 1308 | asm ("${libc_cv_dot_text}");], |
b8dc6a10 RM |
1309 | libc_cv_have_initfini=yes, |
1310 | libc_cv_have_initfini=no)]) | |
1311 | AC_SUBST(libc_cv_have_initfini)dnl | |
1312 | if test $libc_cv_have_initfini = yes; then | |
1313 | AC_DEFINE(HAVE_INITFINI) | |
1314 | fi | |
1315 | fi | |
e215c478 | 1316 | |
e26dd47f UD |
1317 | if test $elf = yes -a $gnu_ld = yes; then |
1318 | AC_CACHE_CHECK(whether cc puts quotes around section names, | |
1319 | libc_cv_have_section_quotes, | |
1320 | [cat > conftest.c <<EOF | |
1321 | static const int foo | |
1322 | __attribute__ ((section ("bar"))) = 1; | |
1323 | EOF | |
1324 | if ${CC-cc} -S conftest.c -o conftest.s; then | |
1325 | if grep '\.section.*"bar"' conftest.s >/dev/null; then | |
1326 | libc_cv_have_section_quotes=yes | |
1327 | else | |
1328 | libc_cv_have_section_quotes=no | |
1329 | fi | |
1330 | else | |
1331 | libc_cv_have_section_quotes=unknown | |
1332 | fi | |
1333 | rm -f conftest.[cs] | |
1334 | ]) | |
1335 | if test $libc_cv_have_section_quotes = yes; then | |
1336 | AC_DEFINE(HAVE_SECTION_QUOTES) | |
1337 | fi | |
1338 | fi | |
1339 | ||
9a0a462c UD |
1340 | dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) |
1341 | AC_DEFUN(AC_CHECK_ASM_UNDERSCORE, | |
1342 | [cat > conftest.$ac_ext <<EOF | |
1343 | dnl This sometimes fails to find confdefs.h, for some reason. | |
1344 | dnl [#]line __oline__ "[$]0" | |
1345 | [#]line __oline__ "configure" | |
1346 | #include "confdefs.h" | |
1347 | void underscore_test(void) { | |
1348 | return; } | |
1349 | EOF | |
1350 | if AC_TRY_EVAL(ac_compile); then | |
1351 | if grep _underscore_test conftest* >/dev/null; then | |
1352 | ifelse([$1], , :, [rm -f conftest* | |
1353 | $1]) | |
1354 | else | |
1355 | ifelse([$2], , , [rm -f conftest* | |
1356 | $2]) | |
1357 | fi | |
1358 | else | |
c2f55635 RM |
1359 | echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD |
1360 | cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD | |
9a0a462c UD |
1361 | ifelse([$2], , , [rm -f conftest* |
1362 | $2]) | |
1363 | fi | |
1364 | rm -f conftest*]) | |
1365 | ||
c224a18a RM |
1366 | if test $elf = yes; then |
1367 | libc_cv_asm_underscores=no | |
1368 | else | |
9a0a462c UD |
1369 | if test $ac_cv_prog_cc_works = yes; then |
1370 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
1371 | [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();], | |
1372 | libc_cv_asm_underscores=yes, | |
1373 | libc_cv_asm_underscores=no)]) | |
1374 | else | |
1375 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
1376 | [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes, | |
1377 | libc_cv_asm_underscores=no)]) | |
1378 | fi | |
c224a18a RM |
1379 | fi |
1380 | if test $libc_cv_asm_underscores = no; then | |
1381 | AC_DEFINE(NO_UNDERSCORES) | |
1382 | fi | |
1383 | ||
1384 | if test $elf = yes; then | |
1385 | libc_cv_weak_symbols=yes | |
9a97d1f7 UD |
1386 | fi |
1387 | ||
1388 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
75d86c1f | 1389 | [dnl |
c224a18a | 1390 | cat > conftest.s <<EOF |
2293395f | 1391 | ${libc_cv_dot_text} |
c224a18a | 1392 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1393 | foo: |
c224a18a RM |
1394 | .weak foo |
1395 | .weak bar; bar = foo | |
1396 | EOF | |
61cea1c3 | 1397 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
9a97d1f7 UD |
1398 | libc_cv_asm_weak_directive=yes |
1399 | else | |
1400 | libc_cv_asm_weak_directive=no | |
1401 | fi | |
1402 | rm -f conftest*]) | |
c224a18a | 1403 | |
c8cf0b14 | 1404 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
1405 | AC_CACHE_CHECK(for assembler .weakext directive, |
1406 | libc_cv_asm_weakext_directive, | |
1407 | [dnl | |
1408 | cat > conftest.s <<EOF | |
2293395f | 1409 | ${libc_cv_dot_text} |
c224a18a | 1410 | ${libc_cv_asm_global_directive} foo |
ae1025be | 1411 | foo: |
f802accb UD |
1412 | .weakext bar foo |
1413 | .weakext baz | |
1414 | ${libc_cv_asm_global_directive} baz | |
9a97d1f7 | 1415 | baz: |
c224a18a | 1416 | EOF |
61cea1c3 | 1417 | if AC_TRY_COMMAND(${CC-cc} $CFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then |
c224a18a RM |
1418 | libc_cv_asm_weakext_directive=yes |
1419 | else | |
1420 | libc_cv_asm_weakext_directive=no | |
1421 | fi | |
1422 | rm -f conftest*]) | |
1423 | ||
9a97d1f7 | 1424 | fi # no .weak |
c224a18a | 1425 | |
ffcf9634 | 1426 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 1427 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 1428 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
1429 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
1430 | fi | |
1431 | ||
b15cb495 | 1432 | dnl The standard hppa assembler uses `;' to start comments and `!' |
eacde9d0 UD |
1433 | dnl as a line separator. CRIS uses `;' to start comments and `@' for |
1434 | dnl line separator. | |
b15cb495 | 1435 | case "${host_cpu}-${host_os}" in |
eacde9d0 UD |
1436 | cris*) |
1437 | libc_cv_asm_line_sep='@' | |
1438 | AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep) | |
1439 | ;; | |
b15cb495 UD |
1440 | hppa*linux*) |
1441 | AC_CACHE_CHECK(for assembler line separator, | |
1442 | libc_cv_asm_line_sep, [dnl | |
1443 | cat > conftest.s <<EOF | |
1444 | nop ; is_old_puffin | |
1445 | EOF | |
c2f55635 | 1446 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then |
b15cb495 UD |
1447 | libc_cv_asm_line_sep='!' |
1448 | else | |
1449 | if test -z "$enable_hacker_mode"; then | |
1450 | echo "*** You need a newer assembler to compile glibc" | |
1451 | rm -f conftest* | |
1452 | exit 1 | |
1453 | fi | |
1454 | libc_cv_asm_line_sep=';' | |
1455 | fi | |
1456 | rm -f conftest*]) | |
1457 | AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep) | |
1458 | ;; | |
1459 | esac | |
1460 | ||
073e82bf RM |
1461 | AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp, |
1462 | libc_cv_cpp_asm_debuginfo, [dnl | |
1463 | cat > conftest.S <<EOF | |
1464 | #include "confdefs.h" | |
1465 | ||
1466 | /* comment on | |
1467 | two lines */ | |
1468 | ${libc_cv_dot_text} | |
1469 | ${libc_cv_asm_global_directive} foo | |
1470 | foo: | |
1471 | /* Unfortunately this test only works for a real instruction, | |
1472 | not for any of the machine-independent pseudo-ops. | |
1473 | So we just have to assume everybody has a "nop". */ | |
1474 | nop | |
1475 | /* comment */ | |
1476 | nop | |
1477 | /* comment */ | |
1478 | nop | |
1479 | EOF | |
1480 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && | |
1481 | ac_pattern='conftest\.S' | |
1482 | AC_TRY_COMMAND([readelf --debug-dump=line conftest.o | | |
1483 | grep $ac_pattern 1>&AS_MESSAGE_LOG_FD]); then | |
1484 | libc_cv_cpp_asm_debuginfo=yes | |
1485 | else | |
1486 | libc_cv_cpp_asm_debuginfo=no | |
1487 | fi | |
1488 | rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo) | |
1489 | if test $libc_cv_cpp_asm_debuginfo = yes; then | |
1490 | AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO) | |
1491 | fi | |
1492 | ||
a641835a RM |
1493 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
1494 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 1495 | _start () {} |
dcf0671d UD |
1496 | int __eh_pc; |
1497 | __throw () {} | |
a641835a | 1498 | EOF |
dcea62dd RM |
1499 | dnl No \ in command here because it ends up inside ''. |
1500 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
1501 | -nostdlib -nostartfiles -Wl,--no-whole-archive | |
c2f55635 | 1502 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
a641835a RM |
1503 | libc_cv_ld_no_whole_archive=yes |
1504 | else | |
1505 | libc_cv_ld_no_whole_archive=no | |
1506 | fi | |
1507 | rm -f conftest*]) | |
b17277cf UD |
1508 | if test $libc_cv_ld_no_whole_archive = yes; then |
1509 | no_whole_archive=-Wl,--no-whole-archive | |
1510 | fi | |
1511 | AC_SUBST(no_whole_archive)dnl | |
a641835a | 1512 | |
dff14448 | 1513 | AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl |
b236e99d UD |
1514 | cat > conftest.c <<\EOF |
1515 | _start () {} | |
1516 | int __eh_pc; | |
1517 | __throw () {} | |
1518 | EOF | |
1519 | dnl No \ in command here because it ends up inside ''. | |
1520 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
dff14448 | 1521 | -nostdlib -nostartfiles -fexceptions |
c2f55635 | 1522 | -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]); then |
dff14448 | 1523 | libc_cv_gcc_exceptions=yes |
b236e99d | 1524 | else |
dff14448 | 1525 | libc_cv_gcc_exceptions=no |
b236e99d UD |
1526 | fi |
1527 | rm -f conftest*]) | |
dff14448 UD |
1528 | if test $libc_cv_gcc_exceptions = yes; then |
1529 | exceptions=-fexceptions | |
b17277cf | 1530 | fi |
dff14448 | 1531 | AC_SUBST(exceptions)dnl |
b236e99d | 1532 | |
66000494 UD |
1533 | if test "$host_cpu" = powerpc ; then |
1534 | # Check for a bug present in at least versions 2.8.x of GCC | |
1535 | # and versions 1.0.x of EGCS. | |
1536 | AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl | |
1537 | AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, | |
1538 | libc_cv_c_asmcr0_bug='no', | |
1539 | libc_cv_c_asmcr0_bug='yes')]) | |
1540 | if test "$libc_cv_c_asmcr0_bug" != 'no'; then | |
1541 | AC_DEFINE(BROKEN_PPC_ASM_CR0) | |
1542 | fi | |
1543 | fi | |
1544 | ||
650425ce UD |
1545 | AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info, |
1546 | [cat > conftest.c <<EOF | |
1547 | #line __oline__ "configure" | |
2b904739 | 1548 | static char *__EH_FRAME_BEGIN__; |
650425ce UD |
1549 | _start () |
1550 | { | |
9756dfe1 | 1551 | #ifdef CHECK__register_frame |
650425ce UD |
1552 | __register_frame (__EH_FRAME_BEGIN__); |
1553 | __deregister_frame (__EH_FRAME_BEGIN__); | |
9756dfe1 UD |
1554 | #endif |
1555 | #ifdef CHECK__register_frame_info | |
1556 | __register_frame_info (__EH_FRAME_BEGIN__); | |
1557 | __deregister_frame_info (__EH_FRAME_BEGIN__); | |
1558 | #endif | |
650425ce UD |
1559 | } |
1560 | int __eh_pc; | |
1561 | __throw () {} | |
1562 | /* FIXME: this is fragile. */ | |
1563 | malloc () {} | |
1564 | strcmp () {} | |
1565 | strlen () {} | |
1566 | memcpy () {} | |
1567 | memset () {} | |
1568 | free () {} | |
1569 | abort () {} | |
dfd2257a | 1570 | __bzero () {} |
df17727a | 1571 | dl_iterate_phdr () {} |
650425ce UD |
1572 | EOF |
1573 | dnl No \ in command here because it ends up inside ''. | |
9756dfe1 | 1574 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info |
650425ce | 1575 | -nostdlib -nostartfiles |
c2f55635 | 1576 | -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then |
9756dfe1 | 1577 | libc_cv_gcc_dwarf2_unwind_info=static |
650425ce UD |
1578 | else |
1579 | libc_cv_gcc_dwarf2_unwind_info=no | |
1580 | fi | |
cd925327 RM |
1581 | # Some platforms' specs put -lgcc first. The second one doesn't hurt. |
1582 | libc_unwind_check="${CC-cc} $CFLAGS -DCHECK__register_frame_info \ | |
1583 | -nostdlib -nostartfiles -o conftest conftest.c \ | |
1584 | -lgcc -lgcc_eh -lgcc" | |
1585 | if AC_TRY_COMMAND([$libc_unwind_check >&AS_MESSAGE_LOG_FD]); then | |
1586 | if $libc_unwind_check -v 2>&1 >/dev/null \ | |
2b904739 AJ |
1587 | | grep -q -- --eh-frame-hdr; then |
1588 | libc_cv_gcc_dwarf2_unwind_info=no_registry_needed | |
1589 | else | |
1590 | libc_cv_gcc_dwarf2_unwind_info=static | |
1591 | fi | |
1592 | else | |
1593 | libc_cv_gcc_dwarf2_unwind_info=no | |
1594 | fi | |
9756dfe1 UD |
1595 | if test $libc_cv_gcc_dwarf2_unwind_info = no; then |
1596 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame | |
1597 | -nostdlib -nostartfiles | |
c2f55635 | 1598 | -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then |
9756dfe1 UD |
1599 | libc_cv_gcc_dwarf2_unwind_info=yes |
1600 | else | |
1601 | libc_cv_gcc_dwarf2_unwind_info=no | |
1602 | fi | |
1603 | fi | |
650425ce | 1604 | rm -f conftest*]) |
9756dfe1 UD |
1605 | case $libc_cv_gcc_dwarf2_unwind_info in |
1606 | yes) | |
650425ce | 1607 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) |
9756dfe1 UD |
1608 | ;; |
1609 | static) | |
1610 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) | |
1611 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC) | |
1612 | ;; | |
1613 | esac | |
650425ce | 1614 | |
a8eab8b1 UD |
1615 | dnl Check whether compiler understands __builtin_expect. |
1616 | AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect, | |
1617 | [cat > conftest.c <<EOF | |
1618 | #line __oline__ "configure" | |
1619 | int foo (int a) | |
1620 | { | |
1621 | a = __builtin_expect (a, 10); | |
1622 | return a == 10 ? 0 : 1; | |
1623 | } | |
1624 | EOF | |
1625 | dnl No \ in command here because it ends up inside ''. | |
1626 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles | |
c2f55635 | 1627 | -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then |
a8eab8b1 UD |
1628 | libc_cv_gcc_builtin_expect=yes |
1629 | else | |
1630 | libc_cv_gcc_builtin_expect=no | |
1631 | fi | |
1632 | rm -f conftest*]) | |
1633 | if test "$libc_cv_gcc_builtin_expect" = yes; then | |
1634 | AC_DEFINE(HAVE_BUILTIN_EXPECT) | |
1635 | fi | |
1636 | ||
d555194c UD |
1637 | AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl |
1638 | cat > conftest.c <<\EOF | |
1639 | void zero (void *x) | |
1640 | { | |
a52d1562 | 1641 | __builtin_memset (x, 0, 1000); |
d555194c UD |
1642 | } |
1643 | EOF | |
1644 | dnl | |
1645 | if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]); | |
1646 | then | |
1647 | libc_cv_gcc_builtin_memset=no | |
1648 | else | |
1649 | libc_cv_gcc_builtin_memset=yes | |
1650 | fi | |
1651 | rm -f conftest* ]) | |
1652 | if test "$libc_cv_gcc_builtin_memset" = yes ; then | |
1653 | AC_DEFINE(HAVE_BUILTIN_MEMSET) | |
1654 | fi | |
1655 | ||
3d558f4e UD |
1656 | dnl Check whether the compiler supports subtraction of local labels. |
1657 | AC_CACHE_CHECK(for local label subtraction, libc_cv_gcc_subtract_local_labels, | |
1658 | [cat > conftest.c <<EOF | |
1659 | changequote(,)dnl | |
1660 | #line __oline__ "configure" | |
1661 | int foo (int a) | |
1662 | { | |
1663 | static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 }; | |
1664 | void *p = &&l1 + ar[a]; | |
1665 | goto *p; | |
1666 | l1: | |
1667 | return 1; | |
1668 | l2: | |
1669 | return 2; | |
1670 | } | |
1671 | changequote([,])dnl | |
1672 | EOF | |
1673 | dnl No \ in command here because it ends up inside ''. | |
1674 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles | |
c2f55635 | 1675 | -o conftest conftest.c -lgcc >&AS_MESSAGE_LOG_FD]); then |
3d558f4e UD |
1676 | libc_cv_gcc_subtract_local_labels=yes |
1677 | else | |
1678 | libc_cv_gcc_subtract_local_labels=no | |
1679 | fi | |
1680 | rm -f conftest*]) | |
1681 | if test "$libc_cv_gcc_subtract_local_labels" = yes; then | |
1682 | AC_DEFINE(HAVE_SUBTRACT_LOCAL_LABELS) | |
1683 | fi | |
1684 | ||
739d440d | 1685 | dnl Check whether the compiler supports the __thread keyword. |
5b8f26b4 RM |
1686 | if test "x$use__thread" != xno; then |
1687 | AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread, | |
1688 | [cat > conftest.c <<\EOF | |
fbb18522 RM |
1689 | __thread int a = 42; |
1690 | EOF | |
c2f55635 | 1691 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD]); then |
5b8f26b4 RM |
1692 | libc_cv_gcc___thread=yes |
1693 | else | |
1694 | libc_cv_gcc___thread=no | |
1695 | fi | |
1696 | rm -f conftest*]) | |
1697 | if test "$libc_cv_gcc___thread" = yes; then | |
1698 | AC_DEFINE(HAVE___THREAD) | |
1699 | fi | |
739d440d UD |
1700 | else |
1701 | libc_cv_gcc___thread=no | |
1702 | fi | |
739d440d | 1703 | |
9b21e6bc RM |
1704 | if test "$libc_cv_gcc___thread" = yes; then |
1705 | dnl Check whether the compiler supports the tls_model attribute. | |
1706 | AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl | |
1707 | cat > conftest.c <<\EOF | |
1708 | extern __thread int a __attribute__((tls_model ("initial-exec"))); | |
1709 | EOF | |
c2f55635 | 1710 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -S -Werror conftest.c >&AS_MESSAGE_LOG_FD]); then |
9b21e6bc RM |
1711 | libc_cv_gcc_tls_model_attr=yes |
1712 | else | |
1713 | libc_cv_gcc_tls_model_attr=no | |
1714 | fi | |
1715 | rm -f conftest*]) | |
1716 | if test "$libc_cv_gcc_tls_model_attr" = yes; then | |
1717 | AC_DEFINE(HAVE_TLS_MODEL_ATTRIBUTE) | |
1718 | fi | |
1719 | fi | |
739d440d | 1720 | |
c8f3e6db UD |
1721 | dnl Check whether we have the gd library available. |
1722 | AC_MSG_CHECKING(for libgd) | |
6dab8688 UD |
1723 | if test "$with_gd" != "no"; then |
1724 | old_CFLAGS="$CFLAGS" | |
1725 | CFLAGS="$CFLAGS $libgd_include" | |
1726 | old_LDFLAGS="$LDFLAGS" | |
1727 | LDFLAGS="$LDFLAGS $libgd_ldflags" | |
1728 | old_LIBS="$LIBS" | |
1729 | LIBS="$LIBS -lgd -lpng -lz -lm" | |
1730 | AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no) | |
1731 | CFLAGS="$old_CFLAGS" | |
1732 | LDFLAGS="$old_LDFLAGS" | |
1733 | LIBS="$old_LIBS" | |
1734 | else | |
1735 | LIBGD=no | |
1736 | fi | |
c8f3e6db UD |
1737 | AC_MSG_RESULT($LIBGD) |
1738 | AC_SUBST(LIBGD) | |
3d558f4e | 1739 | |
8ed1e7d5 GK |
1740 | dnl check for the size of 'long double'. |
1741 | AC_CHECK_SIZEOF(long double, 0) | |
1742 | sizeof_long_double=$ac_cv_sizeof_long_double | |
1743 | AC_SUBST(sizeof_long_double) | |
1744 | ||
c224a18a RM |
1745 | ### End of automated tests. |
1746 | ### Now run sysdeps configure fragments. | |
1747 | ||
cb343854 | 1748 | # They also can set these variables. |
591e1ffb | 1749 | use_ldconfig=no |
cb343854 | 1750 | ldd_rewrite_script=no |
77259608 | 1751 | libc_cv_sysconfdir=$sysconfdir |
74bd2300 | 1752 | libc_cv_gcc_unwind_find_fde=no |
cb343854 | 1753 | |
28f540f4 RM |
1754 | # Iterate over all the sysdep directories we will use, running their |
1755 | # configure fragments, and looking for a uname implementation. | |
1756 | uname= | |
1757 | for dir in $sysnames; do | |
57ba7bb4 UD |
1758 | case $dir in |
1759 | /*) dest=$dir ;; | |
1760 | *) dest=$srcdir/$dir ;; | |
1761 | esac | |
1762 | if test -r $dest/configure; then | |
d1149385 | 1763 | AC_MSG_RESULT(running configure fragment for $dir) |
57ba7bb4 | 1764 | . $dest/configure |
28f540f4 | 1765 | fi |
4ca84cff | 1766 | [ |
28f540f4 | 1767 | if test -z "$uname"; then |
e7f1f046 UD |
1768 | if test -r $dest/uname.c || |
1769 | test -r $dest/uname.S || | |
1770 | { test -r $dest/syscalls.list && | |
1771 | grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then | |
b86199fb | 1772 | uname=$dir |
4ca84cff | 1773 | fi |
28f540f4 | 1774 | fi |
4ca84cff | 1775 | ]dnl |
28f540f4 RM |
1776 | done |
1777 | ||
74bd2300 UD |
1778 | if test x$libc_cv_gcc_unwind_find_fde = xyes; then |
1779 | AC_DEFINE(EXPORT_UNWIND_FIND_FDE) | |
1780 | fi | |
1781 | AC_SUBST(libc_cv_gcc_unwind_find_fde) | |
1782 | ||
28f540f4 RM |
1783 | # If we will use the generic uname implementation, we must figure out what |
1784 | # it will say by examining the system, and write the results in config-name.h. | |
e7f1f046 | 1785 | if test "$uname" = "sysdeps/generic"; then |
28f540f4 RM |
1786 | |
1787 | changequote(,)dnl | |
1788 | uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'` | |
1789 | changequote([,])dnl | |
1790 | if test $uname_sysname != $config_os; then | |
1791 | config_release=`echo $config_os | sed s/$uname_sysname//` | |
1792 | fi | |
1793 | dnl | |
1794 | AC_DEFUN(LIBC_KERNEL_ID, [dnl | |
1795 | if test -r /vmunix; then | |
1796 | kernel_id=`strings /vmunix | grep UNIX` | |
1797 | elif test -r /dynix; then | |
1798 | kernel_id=`strings /dynix | grep DYNIX` | |
1799 | else | |
1800 | kernel_id= | |
1801 | fi | |
1802 | ])dnl | |
1803 | ||
b8dc6a10 | 1804 | AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl |
3a12e572 | 1805 | LIBC_KERNEL_ID |
28f540f4 RM |
1806 | changequote(,)dnl |
1807 | kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'` | |
1808 | changequote([,])dnl | |
1809 | if test x`echo "$config_release" | sed "s/^$kernel_release//"` \ | |
1810 | != x$config_release; then | |
1811 | # The configuration release is a substring of the kernel release. | |
1812 | libc_cv_uname_release=$kernel_release | |
1813 | elif test x$config_release != x; then | |
1814 | libc_cv_uname_release=$config_release | |
1815 | elif test x$kernel_release != x; then | |
1816 | libc_cv_uname_release=$kernel_release | |
1817 | else | |
1818 | libc_cv_uname_release=unknown | |
1819 | fi]) | |
28f540f4 RM |
1820 | uname_release="$libc_cv_uname_release" |
1821 | ||
b8dc6a10 | 1822 | AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl |
3a12e572 | 1823 | LIBC_KERNEL_ID |
28f540f4 RM |
1824 | changequote(,)dnl |
1825 | kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'` | |
1826 | changequote([,])dnl | |
1827 | if test -n "$kernel_version"; then | |
1828 | libc_cv_uname_version="$kernel_version" | |
1829 | else | |
1830 | libc_cv_uname_version=unknown | |
1831 | fi]) | |
28f540f4 RM |
1832 | uname_version="$libc_cv_uname_version" |
1833 | ||
1834 | AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl | |
1835 | config_uname=config-name.h:config-name.in | |
1836 | else | |
1837 | # For non-generic uname, we don't need to create config-name.h at all. | |
1838 | config_uname= | |
1839 | fi | |
1840 | ||
a8c01776 RM |
1841 | dnl This is tested by existing code and it's simpler to avoid changing it. |
1842 | AC_DEFINE(USE_IN_LIBIO) | |
96aa2d94 | 1843 | |
a53bad16 UD |
1844 | # Test for old glibc 2.0.x headers so that they can be removed properly |
1845 | # Search only in includedir. | |
1846 | AC_MSG_CHECKING(for old glibc 2.0.x headers) | |
350eb336 | 1847 | if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h" |
a53bad16 UD |
1848 | then |
1849 | old_glibc_headers=yes | |
1850 | else | |
1851 | old_glibc_headers=no | |
1852 | fi | |
1853 | AC_MSG_RESULT($old_glibc_headers) | |
1854 | if test ${old_glibc_headers} = yes; then | |
1855 | AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will) | |
1856 | AC_MSG_WARN(*** be removed.) | |
1857 | fi | |
b195f6bc | 1858 | AC_SUBST(old_glibc_headers) |
26b4d766 | 1859 | |
84384f5b | 1860 | AC_SUBST(libc_cv_slibdir) |
a1d84548 | 1861 | AC_SUBST(libc_cv_localedir) |
77259608 | 1862 | AC_SUBST(libc_cv_sysconfdir) |
1ef32c3d UD |
1863 | AC_SUBST(libc_cv_rootsbindir) |
1864 | ||
591e1ffb | 1865 | AC_SUBST(use_ldconfig) |
cb343854 | 1866 | AC_SUBST(ldd_rewrite_script) |
84384f5b | 1867 | |
5af3245a | 1868 | AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) AC_SUBST(xcoff) |
28f540f4 RM |
1869 | if test $gnu_ld = yes; then |
1870 | AC_DEFINE(HAVE_GNU_LD) | |
1871 | fi | |
1872 | if test $gnu_as = yes; then | |
1873 | AC_DEFINE(HAVE_GNU_AS) | |
1874 | fi | |
1875 | if test $elf = yes; then | |
1876 | AC_DEFINE(HAVE_ELF) | |
1877 | fi | |
5af3245a UD |
1878 | if test $xcoff = yes; then |
1879 | AC_DEFINE(HAVE_XCOFF) | |
1880 | fi | |
28f540f4 | 1881 | |
650425ce | 1882 | AC_SUBST(static) |
ff3d7ed3 RM |
1883 | AC_SUBST(shared) |
1884 | if test $shared = default; then | |
1885 | if test $gnu_ld = yes; then | |
1886 | shared=$elf | |
f65fd747 UD |
1887 | else |
1888 | # For now we do not assume shared libs are available. In future more | |
1889 | # tests might become available. | |
1890 | shared=no | |
ff3d7ed3 RM |
1891 | fi |
1892 | fi | |
cc3fa755 UD |
1893 | |
1894 | AC_CACHE_CHECK([whether -fPIC is default], pic_default, | |
1895 | [pic_default=yes | |
1896 | cat > conftest.c <<EOF | |
9756dfe1 | 1897 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
1898 | # error PIC is default. |
1899 | #endif | |
1900 | EOF | |
0b4ee387 | 1901 | if eval "${CC-cc} -S conftest.c 2>&AS_MESSAGE_LOG_FD 1>&AS_MESSAGE_LOG_FD"; then |
cc3fa755 UD |
1902 | pic_default=no |
1903 | fi | |
1904 | rm -f conftest.*]) | |
1905 | AC_SUBST(pic_default) | |
1906 | ||
ff3d7ed3 RM |
1907 | AC_SUBST(profile) |
1908 | AC_SUBST(omitfp) | |
5a97622d | 1909 | AC_SUBST(bounded) |
5107cf1d | 1910 | AC_SUBST(static_nss) |
5ae3e846 | 1911 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 1912 | |
edf5b2d7 UD |
1913 | AC_SUBST(DEFINES) |
1914 | ||
7cabd57c UD |
1915 | case "$add_ons" in |
1916 | *door*) linux_doors=yes ;; | |
1917 | *) linux_doors=no ;; | |
1918 | esac | |
1919 | AC_SUBST(linux_doors) | |
1920 | ||
61c83c3f RM |
1921 | dnl See sysdeps/mach/configure.in for this variable. |
1922 | AC_SUBST(mach_interface_list) | |
1923 | ||
28f540f4 RM |
1924 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
1925 | config_makefile= | |
1926 | else | |
1927 | config_makefile=Makefile | |
1928 | fi | |
1929 | ||
ee74a442 UD |
1930 | VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h` |
1931 | RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h` | |
df4ef2ab | 1932 | AC_SUBST(VERSION) |
ee74a442 | 1933 | AC_SUBST(RELEASE) |
df4ef2ab | 1934 | |
c118d634 RM |
1935 | AC_CONFIG_FILES([config.make glibcbug ${config_makefile} ${config_uname}]) |
1936 | AC_CONFIG_COMMANDS([default],[[ | |
737547be UD |
1937 | case $CONFIG_FILES in *config.make*) |
1938 | echo "$config_vars" >> config.make;; | |
1939 | esac | |
c118d634 RM |
1940 | test -d bits || mkdir bits]],[[config_vars='$config_vars']]) |
1941 | AC_OUTPUT |