]>
Commit | Line | Data |
---|---|---|
f4017d20 | 1 | dnl Process this file with autoconf to produce a configure script. |
ff3d7ed3 | 2 | AC_REVISION([$CVSid$]) |
8a523922 | 3 | AC_PREREQ(2.11)dnl dnl Minimum Autoconf version required. |
5107cf1d | 4 | AC_INIT(include/features.h) |
28f540f4 RM |
5 | AC_CONFIG_HEADER(config.h) |
6 | ||
7 | # This will get text that should go into config.make. | |
8 | config_vars= | |
9 | ||
10 | # Check for a --with-gmp argument and set gmp-srcdir in config.make. | |
11 | AC_ARG_WITH(gmp, dnl | |
12 | --with-gmp=DIRECTORY find GMP source code in DIRECTORY (not needed), | |
13 | [dnl | |
14 | case "$with_gmp" in | |
15 | yes) AC_MSG_ERROR(--with-gmp requires an argument; use --with-gmp=DIRECTORY) ;; | |
16 | ''|no) ;; | |
17 | *) config_vars="$config_vars | |
18 | gmp-srcdir = $withval" ;; | |
19 | esac | |
20 | ]) | |
75914335 RM |
21 | # Check for a --with-gettext argument and set gettext-srcdir in config.make. |
22 | AC_ARG_WITH(gettext, dnl | |
23 | --with-gettext=DIR find GNU gettext source code in DIR (not needed), | |
24 | [dnl | |
25 | case "$with_gettext" in | |
26 | yes) | |
27 | AC_MSG_ERROR(--with-gettext requires an argument; use --with-gettext=DIR) ;; | |
28 | ''|no) ;; | |
29 | *) | |
30 | config_vars="$config_vars | |
31 | gettext-srcdir = $withval" ;; | |
32 | esac | |
33 | ]) | |
28f540f4 | 34 | |
ff3d7ed3 | 35 | dnl Arguments to specify presence of other packages/features. |
335aa320 | 36 | AC_ARG_WITH(fp, dnl |
a18f587d | 37 | [ --with-fp if using floating-point hardware [default=yes]], |
335aa320 | 38 | with_fp=$withval, with_fp=yes) |
650425ce | 39 | AC_ARG_WITH(binutils, dnl |
a5a0310d | 40 | --with-binutils=PATH specify location of binutils (as and ld), |
650425ce | 41 | path_binutils=$withval, path_binutils='') |
28f540f4 RM |
42 | AC_ARG_WITH(elf, dnl |
43 | --with-elf if using the ELF object format, | |
335aa320 | 44 | elf=$withval, elf=no) |
4d06461a UD |
45 | AC_ARG_WITH(cvs, dnl |
46 | [ --without-cvs if CVS should not be used], | |
47 | with_cvs=$withval, with_cvs=yes) | |
48 | AC_SUBST(with_cvs) | |
28f540f4 | 49 | |
deab9dea RM |
50 | AC_ARG_ENABLE(libio, dnl |
51 | [ --enable-libio build in GNU libio instead of GNU stdio], | |
f4482045 RM |
52 | [if test $enableval = yes; then |
53 | stdio=libio | |
54 | else | |
55 | stdio=stdio | |
56 | fi], | |
57 | stdio=default) | |
deab9dea | 58 | |
a18f587d UD |
59 | AC_ARG_ENABLE(sanity-checks, dnl |
60 | [ --disable-sanity-checks really do not use threads (should not be used | |
61 | except in special situations) [default=yes]], | |
62 | enable_sanity=$enableval, enable_sanity=yes) | |
63 | ||
650425ce UD |
64 | dnl Arguments to enable or disable building the static, shared, profiled, |
65 | dnl and -fomit-frame-pointer libraries. | |
66 | AC_ARG_ENABLE(static, dnl | |
67 | [ --enable-static build static library [default=yes]], | |
68 | static=$enableval, static=yes) | |
ff3d7ed3 RM |
69 | AC_ARG_ENABLE(shared, dnl |
70 | [ --enable-shared build shared library [default=yes if GNU ld & ELF]], | |
6b3a2224 | 71 | shared=$enableval, shared=default) |
ff3d7ed3 RM |
72 | AC_ARG_ENABLE(profile, dnl |
73 | [ --enable-profile build profiled library [default=yes]], | |
6b3a2224 | 74 | profile=$enableval, profile=yes) |
ff3d7ed3 | 75 | AC_ARG_ENABLE(omitfp, dnl |
6b3a2224 RM |
76 | [ --enable-omitfp build undebuggable optimized library [default=no]], |
77 | omitfp=$enableval, omitfp=no) | |
5a97622d UD |
78 | AC_ARG_ENABLE(bounded, dnl |
79 | [ --enable-bounded build with runtime bounds checking [default=no]], | |
80 | bounded=$enableval, bounded=no) | |
650425ce UD |
81 | AC_ARG_ENABLE(versioning, dnl |
82 | [ --disable-versioning do not include versioning information in the | |
83 | library objects [default=yes if supported]], | |
84 | enable_versioning=$enableval, enable_versioning=yes) | |
6b3a2224 RM |
85 | |
86 | dnl Generic infrastructure for drop-in additions to libc. | |
87 | AC_ARG_ENABLE(add-ons, dnl | |
d71b808a UD |
88 | [ --enable-add-ons[=DIR1,DIR2]... configure and build add-ons in DIR1,DIR2,... |
89 | search for add-ons if no parameter given], | |
61952351 | 90 | [case "$enableval" in |
b9b49b44 UD |
91 | yes) if test "$srcdir" = "."; then |
92 | add_ons=`echo */configure | sed -e 's!/configure!!g'` | |
93 | else | |
94 | add_ons=`echo $srcdir/*/configure | \ | |
566efee2 | 95 | sed -e 's!/configure!!g' -e "s!$srcdir/!!g"` |
b9b49b44 | 96 | fi;; |
61952351 UD |
97 | *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;; |
98 | esac], | |
99 | [add_ons=]) | |
100 | ||
6b3a2224 | 101 | AC_CONFIG_SUBDIRS($add_ons) |
57ba7bb4 | 102 | add_ons_pfx= |
da74e902 | 103 | if test x"$add_ons" != x; then |
57ba7bb4 | 104 | for f in $add_ons; do |
af6f3906 UD |
105 | # Test whether such a subdir really exists. |
106 | if test -d $srcdir/$f; then | |
107 | add_ons_pfx="$add_ons_pfx $f/" | |
108 | else | |
109 | AC_MSG_ERROR(add-on directory \"$f\" does not exist) | |
110 | fi | |
57ba7bb4 UD |
111 | done |
112 | fi | |
ff3d7ed3 | 113 | |
5107cf1d UD |
114 | dnl On some platforms we cannot use dynamic loading. We must provide |
115 | dnl static NSS modules. | |
116 | AC_ARG_ENABLE(static-nss, dnl | |
117 | [ --enable-static-nss build static NSS modules [default=no]], | |
118 | static_nss=$enableval, static_nss=no) | |
119 | if test x"$static_nss" = xyes; then | |
120 | AC_DEFINE(DO_STATIC_NSS) | |
121 | fi | |
122 | ||
28f540f4 | 123 | AC_CANONICAL_HOST |
8a523922 UD |
124 | |
125 | # The way shlib-versions is used to generate soversions.mk uses a | |
126 | # fairly simplistic model for name recognition that can't distinguish | |
127 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
128 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
129 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
130 | case "$host_os" in | |
131 | linux*) | |
132 | ;; | |
133 | gnu*) | |
134 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
135 | ;; | |
136 | esac | |
137 | ||
61eb22d3 UD |
138 | ### |
139 | ### I put this here to prevent those annoying emails from people who cannot | |
140 | ### read and try to compile glibc on unsupported platforms. --drepper | |
141 | ### | |
650425ce UD |
142 | ### By using the undocumented --enable-hacker-mode option for configure |
143 | ### one can skip this test to make the configuration not fail for unsupported | |
144 | ### platforms. | |
145 | ### | |
146 | if test -z "$enable_hacker_mode"; then | |
4d06461a UD |
147 | case "$machine-$host_os" in |
148 | *-linux* | *-gnu* | arm*-none*) | |
650425ce UD |
149 | ;; |
150 | *) | |
151 | echo "*** The GNU C library is currently not available for this platform." | |
152 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
153 | echo "*** might never happen. So, if you have interest to see glibc on" | |
154 | echo "*** this platform visit" | |
b9b49b44 | 155 | echo "*** http://www.gnu.org/software/libc/porting.html" |
650425ce UD |
156 | echo "*** and join the group of porters" |
157 | exit 1 | |
158 | ;; | |
159 | esac | |
160 | fi | |
61eb22d3 | 161 | |
28f540f4 RM |
162 | # We keep the original values in `$config_*' and never modify them, so we |
163 | # can write them unchanged into config.make. Everything else uses | |
164 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
165 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
166 | ||
a2fe9c76 RM |
167 | # Some configurations imply other options. |
168 | case "$host_os" in | |
169 | gnu* | linux* | bsd4.4* | netbsd* | freebsd*) | |
170 | # These systems always use GNU tools. | |
c8cf0b14 | 171 | gnu_ld=yes gnu_as=yes ;; |
a2fe9c76 RM |
172 | esac |
173 | case "$host_os" in | |
7799b7b3 UD |
174 | # i586-linuxaout is mangled into i586-pc-linux-gnuaout |
175 | linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*) | |
3776d592 | 176 | ;; |
ba909880 | 177 | gnu* | linux* | sysv4* | solaris2* | irix6*) |
3776d592 RM |
178 | # These systems (almost) always use the ELF format. |
179 | elf=yes | |
84724245 | 180 | ;; |
a2fe9c76 RM |
181 | esac |
182 | ||
28f540f4 RM |
183 | machine=$config_machine |
184 | vendor=$config_vendor | |
185 | os=$config_os | |
186 | ||
187 | dnl We need to use [ and ] for other purposes for a while now. | |
188 | changequote(,)dnl | |
189 | # Expand the configuration machine name into a subdirectory by architecture | |
190 | # type and particular chip. | |
191 | case "$machine" in | |
f0523145 RM |
192 | a29k | am29000) base_machine=a29k machine=a29k ;; |
193 | alpha*) base_machine=alpha machine=alpha/$machine ;; | |
7799b7b3 | 194 | arm*) base_machine=arm machine=arm/$machine ;; |
60c96635 UD |
195 | c3[012]) base_machine=cx0 machine=cx0/c30 ;; |
196 | c4[04]) base_machine=cx0 machine=cx0/c40 ;; | |
f0523145 | 197 | hppa*) base_machine=hppa machine=hppa/$machine ;; |
a8922de8 | 198 | i[3456]86) base_machine=i386 machine=i386/$machine ;; |
f0523145 RM |
199 | m680?0) base_machine=m68k machine=m68k/$machine ;; |
200 | m68k) base_machine=m68k machine=m68k/m68020 ;; | |
201 | m88???) base_machine=m88k machine=m88k/$machine ;; | |
202 | m88k) base_machine=m88k machine=m88k/m88100 ;; | |
f0523145 | 203 | mips64*) base_machine=mips64 machine=mips/mips64/$machine ;; |
9a97d1f7 UD |
204 | mips*) base_machine=mips |
205 | case "`uname -m`" in | |
206 | IP22) machine=mips/mips3 ;; | |
207 | *) machine=mips/$machine ,, | |
208 | esac ;; | |
ca34d7a7 UD |
209 | sparc | sparcv[67]) |
210 | base_machine=sparc machine=sparc/sparc32 ;; | |
211 | sparcv8 | supersparc | hypersparc) | |
212 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
213 | sparc64 | ultrasparc) | |
214 | base_machine=sparc machine=sparc/sparc64 ;; | |
28f540f4 | 215 | esac |
f0523145 RM |
216 | changequote([,])dnl |
217 | AC_SUBST(base_machine) | |
28f540f4 | 218 | |
dfd2257a UD |
219 | if test "$base_machine" = "i386"; then |
220 | AC_DEFINE(USE_REGPARMS) | |
221 | fi | |
222 | ||
f0523145 | 223 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 224 | # This can take a while to compute. |
f0523145 | 225 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 226 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
227 | dnl We need to use [ and ] for other purposes for a while now. |
228 | changequote(,)dnl | |
28f540f4 RM |
229 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
230 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
231 | ||
232 | case "$os" in | |
233 | gnu*) | |
234 | base_os=mach/hurd ;; | |
883bc19b | 235 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 236 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 237 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 238 | base_os=unix/bsd ;; |
d586354e | 239 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 240 | base_os=unix/sysv ;; |
f802accb UD |
241 | irix6*) |
242 | base_os=unix/sysv/irix6/$os ;; | |
d586354e | 243 | solaris[2-9]*) |
28f540f4 RM |
244 | base_os=unix/sysv/sysv4 ;; |
245 | none) | |
246 | base_os=standalone ;; | |
247 | *) | |
248 | base_os='' ;; | |
249 | esac | |
250 | ||
251 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
252 | tail=$os | |
253 | ostry=$os | |
254 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
255 | ostry="$ostry /$o" | |
256 | tail=$o | |
75914335 | 257 | done |
28f540f4 RM |
258 | o=`echo $tail | sed 's/[0-9]*$//'` |
259 | if test $o != $tail; then | |
260 | ostry="$ostry /$o" | |
261 | fi | |
ec4b0518 UD |
262 | # For linux-gnu, try linux-gnu, then linux. |
263 | o=`echo $tail | sed 's/-.*$//'` | |
264 | if test $o != $tail; then | |
265 | ostry="$ostry /$o" | |
266 | fi | |
28f540f4 RM |
267 | |
268 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
269 | base= | |
270 | tail=$base_os | |
271 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
272 | set $b | |
273 | base="$base /$1" | |
274 | tail="$2" | |
275 | done | |
276 | ||
277 | # For sparc/sparc9, try sparc/sparc9 and then sparc. | |
278 | mach= | |
279 | tail=$machine | |
280 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do | |
281 | set $m | |
10ceac89 RM |
282 | # Prepend the machine's FPU directory unless --without-fp. |
283 | if test "$with_fp" = yes; then | |
284 | mach="$mach /$1/fpu" | |
82d00cab | 285 | fi |
28f540f4 RM |
286 | mach="$mach /$1" |
287 | tail="$2" | |
288 | done | |
289 | ||
290 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
291 | changequote([,])dnl | |
292 | ||
293 | # Find what sysdep directories exist. | |
294 | sysnames= | |
57ba7bb4 UD |
295 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" |
296 | for d in $add_ons_pfx ''; do | |
297 | for b in $base ''; do | |
298 | for m0 in $mach ''; do | |
299 | for v in /$vendor ''; do | |
ae828bc6 | 300 | test "$v" = / && continue |
57ba7bb4 | 301 | for o in /$ostry ''; do |
ae828bc6 | 302 | test "$o" = / && continue |
57ba7bb4 UD |
303 | for m in $mach ''; do |
304 | if test "$m0$b$v$o$m"; then | |
305 | try="${d}sysdeps$m0$b$v$o$m" | |
306 | test -n "$enable_debug_configure" && | |
307 | echo "$0 [DEBUG]: try $try" >&2 | |
308 | case $try in | |
309 | /*) dest=$try ;; | |
310 | *) dest=$srcdir/$try ;; | |
311 | esac | |
312 | if test -d $dest; then | |
313 | sysnames="$sysnames $try" | |
314 | { test -n "$o" || test -n "$b"; } && os_used=t | |
315 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
316 | fi | |
317 | fi | |
318 | done | |
28f540f4 RM |
319 | done |
320 | done | |
321 | done | |
322 | done | |
323 | done | |
57ba7bb4 | 324 | IFS="$ac_save_ifs" |
28f540f4 RM |
325 | |
326 | if test -z "$os_used" && test "$os" != none; then | |
327 | AC_MSG_ERROR(Operating system $os is not supported.) | |
328 | fi | |
329 | if test -z "$machine_used" && test "$machine" != none; then | |
330 | AC_MSG_ERROR(The $machine is not supported.) | |
331 | fi | |
332 | ||
333 | # We have now validated the configuration. | |
334 | ||
335aa320 | 335 | |
10ceac89 RM |
336 | # If using ELF, look for an `elf' subdirectory of each machine directory. |
337 | # We prepend these rather than inserting them whereever the machine appears | |
338 | # because things specified by the machine's ELF ABI should override | |
339 | # OS-specific things, and should always be the same for any OS on the | |
340 | # machine (otherwise what's the point of an ABI?). | |
341 | if test "$elf" = yes; then | |
342 | elf_dirs= | |
57ba7bb4 UD |
343 | for d in $add_ons_pfx ''; do |
344 | case $d in | |
345 | /*) xsrcdir= ;; | |
346 | *) xsrcdir=$srcdir/ ;; | |
347 | esac | |
348 | for m in $mach; do | |
349 | if test -d $xsrcdir${d}sysdeps$m/elf; then | |
c2bb8cab | 350 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" |
57ba7bb4 UD |
351 | fi |
352 | done | |
28f540f4 | 353 | done |
57ba7bb4 | 354 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" |
28f540f4 RM |
355 | fi |
356 | ||
335aa320 | 357 | |
28f540f4 RM |
358 | # Expand the list of system names into a full list of directories |
359 | # from each element's parent name and Implies file (if present). | |
360 | set $sysnames | |
e50ec9f9 | 361 | names= |
28f540f4 RM |
362 | while test $# -gt 0; do |
363 | name=$1 | |
364 | shift | |
365 | ||
e50ec9f9 | 366 | case " $names " in *" $name "*) |
f332db02 RM |
367 | # Already in the list. |
368 | continue | |
e50ec9f9 | 369 | esac |
f332db02 RM |
370 | |
371 | # Report each name as we discover it, so there is no long pause in output. | |
372 | echo $ac_n "$name $ac_c" >&AC_FD_MSG | |
373 | ||
57ba7bb4 UD |
374 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
375 | ||
376 | case $name in | |
377 | /*) xsrcdir= ;; | |
378 | *) xsrcdir=$srcdir/ ;; | |
379 | esac | |
380 | test -n "$enable_debug_configure" && | |
381 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
382 | ||
383 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 384 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
385 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
386 | implied= | |
387 | for x in $implied_candidate; do | |
388 | if test -d $xsrcdir$name_base/$x; then | |
389 | implied="$implied $name_base/$x"; | |
390 | else | |
391 | AC_MSG_WARN($name/Implies specifies nonexistent $x) | |
392 | fi | |
28f540f4 RM |
393 | done |
394 | else | |
395 | implied= | |
396 | fi | |
397 | ||
398 | # Add NAME to the list of names. | |
399 | names="$names $name" | |
400 | ||
401 | # Find the parent of NAME, using the empty string if it has none. | |
402 | changequote(,)dnl | |
57ba7bb4 | 403 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
404 | changequote([,])dnl |
405 | ||
406 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
407 | # the list of names to be processed (the argument list). We prepend the | |
408 | # implied names to the list and append the parent. We want implied | |
409 | # directories to come before further directories inferred from the | |
410 | # configuration components; this ensures that for sysv4, unix/common | |
411 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
412 | # after sysv4). | |
413 | sysnames="`echo $implied $* $parent`" | |
414 | test -n "$sysnames" && set $sysnames | |
415 | done | |
416 | ||
417 | # Add the default directories. | |
f2ea0f5b | 418 | sysnames="$names sysdeps/generic" |
f332db02 RM |
419 | AC_SUBST(sysnames) |
420 | # The other names were emitted during the scan. | |
f2ea0f5b | 421 | AC_MSG_RESULT(sysdeps/generic) |
28f540f4 | 422 | |
f332db02 RM |
423 | |
424 | ### Locate tools. | |
28f540f4 | 425 | |
28f540f4 | 426 | AC_PROG_INSTALL |
26761c28 | 427 | if test "$INSTALL" = "${srcdir}/install-sh -c"; then |
28f540f4 | 428 | # The makefiles need to use a different form to find it in $srcdir. |
f41c8091 | 429 | INSTALL='\$(..)./install-sh -c' |
28f540f4 | 430 | fi |
0e3426bb | 431 | AC_PROG_LN_S |
c17097f1 | 432 | AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :) |
ae828bc6 UD |
433 | if test "$MSGFMT" != ":"; then |
434 | changequote(,)dnl Need [] for regexps. | |
435 | if $MSGFMT --version 2>&1 | grep 'GNU gettext.*0\.[1-9][0-9]' >/dev/null 2>&1 | |
436 | changequote([,])dnl | |
437 | then : # msgfmt from gettext 0.10 or greater, works. | |
438 | else | |
439 | AC_MSG_WARN([ | |
440 | *** (g)msgfmt is too old or wrong version (need gettext 0.10 or better).]) | |
441 | MSGFMT=":" | |
442 | fi | |
443 | fi | |
444 | ||
04be94a8 UD |
445 | AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo) |
446 | if test "$MAKEINFO"; then | |
447 | changequote(,)dnl Need [] for regexps. | |
448 | if $MAKEINFO --version | grep 'texinfo 3\.[1-9][1-9]' >/dev/null 2>&1 | |
449 | changequote([,])dnl | |
450 | then : # Makeinfo 3.11 or greater, works. | |
451 | else | |
452 | AC_MSG_WARN([ | |
453 | *** makeinfo is too old (need version 3.11 or better). | |
454 | *** You should install the needed version and re-configure since otherwise | |
455 | *** you won't get the info pages installed.]) | |
456 | MAKEINFO= | |
457 | fi | |
458 | fi | |
28f540f4 | 459 | |
ebbad4cc | 460 | AC_PROG_CC_LOCAL |
22d57dd3 | 461 | AC_CANONICAL_BUILD |
072ebcef | 462 | if test $host != $build; then |
22d57dd3 | 463 | AC_CHECK_PROGS(BUILD_CC, gcc cc) |
072ebcef | 464 | fi |
779ae82e | 465 | AC_SUBST(cross_compiling) |
7c713e28 | 466 | AC_PROG_CPP |
650425ce | 467 | LIBC_PROG_BINUTILS |
ff3d7ed3 RM |
468 | AC_CHECK_TOOL(AR, ar) |
469 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
28f540f4 | 470 | |
8e31cf7e UD |
471 | # check for recent compiler |
472 | AC_MSG_CHECKING(compiler version) | |
473 | case `${CC-cc} -v 2>&1` in | |
474 | *egcs-2.91.* | *egcs-1.0.[2-9]* | *egcs-1.1* | *2.8.[1-9]* | *2.9.[0-9] ) | |
475 | cc_is_recent="ok" | |
476 | ;; | |
477 | *) | |
478 | cc_is_recent="too old" | |
479 | ;; | |
480 | esac | |
481 | AC_MSG_RESULT($cc_is_recent) | |
3911660e | 482 | if test "$cc_is_recent" != "ok"; then |
8e31cf7e UD |
483 | AC_MSG_WARN([ |
484 | *** Your compiler is too old. | |
485 | *** You need at least egcs 1.0.2 or GNU CC 2.8.1 to compile glibc. | |
486 | ]) | |
487 | fi | |
3911660e UD |
488 | + |
489 | # Test if LD_LIBRARY_PATH contains the notation for the current directory | |
490 | # since this would lead to problems installing/building glibc. | |
491 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
492 | # is true: | |
493 | # - one of the terminals (":" and ";") is the first or last sign | |
494 | # - two terminals occur directly after each other | |
495 | # - the path contains an element with a dot in it | |
496 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
497 | changequote(,)dnl | |
498 | case ${LD_LIBRARY_PATH} in | |
499 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
500 | ld_library_path_setting="contains current path" | |
501 | ;; | |
502 | *) | |
503 | ld_library_path_setting="ok" | |
504 | ;; | |
505 | esac | |
506 | changequote([,])dnl | |
507 | AC_MSG_RESULT($ld_library_path_setting) | |
508 | if test "$ld_library_path_setting" != "ok"; then | |
509 | AC_MSG_ERROR( | |
510 | *** LD_LIBRARY_PATH shouldn't contain the current path when building glibc. | |
511 | *** Please change the environment variable and run configure again.) | |
512 | fi | |
8e31cf7e | 513 | |
84384f5b | 514 | AC_PATH_PROG(BASH, bash, no) |
a18f587d | 515 | if test "$BASH" != no && |
f43ce637 | 516 | $BASH -c 'test "$BASH_VERSINFO" \ |
6973fc01 | 517 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
518 | libc_cv_have_bash2=yes |
519 | else | |
520 | libc_cv_have_bash2=no | |
521 | fi | |
522 | AC_SUBST(libc_cv_have_bash2) | |
523 | ||
5290baf0 UD |
524 | dnl We need a ksh compatible shell for tzselect. |
525 | if test "$BASH" = no; then | |
526 | AC_PATH_PROG(KSH, ksh, no) | |
527 | if test "$KSH" = no; then | |
528 | libc_cv_have_ksh=no | |
529 | else | |
530 | libc_cv_have_ksh=yes | |
531 | fi | |
532 | else | |
533 | KSH="$BASH" | |
534 | AC_SUBST(KSH) | |
535 | libc_cv_have_ksh=yes | |
536 | fi | |
537 | AC_SUBST(libc_cv_have_ksh) | |
538 | ||
a2b08ee5 UD |
539 | AC_PATH_PROGS(PERL, perl, no) |
540 | AC_SUBST(PERL) | |
541 | ||
b8dc6a10 | 542 | AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl |
28f540f4 RM |
543 | echo '#include <stddef.h> |
544 | FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c | |
545 | if eval "$ac_cpp conftest.c 2>/dev/null" \ | |
546 | | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then | |
547 | libc_cv_signed_size_t=no | |
548 | else | |
549 | libc_cv_signed_size_t=yes | |
550 | fi | |
551 | rm -f conftest*]) | |
28f540f4 RM |
552 | if test $libc_cv_signed_size_t = yes; then |
553 | dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings. | |
554 | cat >> confdefs.h <<\EOF | |
555 | #undef __SIZE_TYPE__ | |
556 | #define __SIZE_TYPE__ unsigned | |
557 | EOF | |
558 | fi | |
559 | ||
b8dc6a10 | 560 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
561 | AC_TRY_COMPILE(dnl |
562 | [#define __need_size_t | |
563 | #define __need_wchar_t | |
564 | #include <stddef.h> | |
565 | #define __need_NULL | |
566 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
567 | #ifdef offsetof | |
568 | #error stddef.h ignored __need_* | |
569 | #endif | |
570 | if (&size == NULL || &wchar == NULL) abort ();], | |
571 | libc_cv_friendly_stddef=yes, | |
572 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
573 | if test $libc_cv_friendly_stddef = yes; then |
574 | config_vars="$config_vars | |
575 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
576 | fi | |
577 | ||
b8dc6a10 RM |
578 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
579 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
580 | cat > conftest.S <<EOF |
581 | #include "confdefs.h" | |
582 | /* Nothing whatsoever. */ | |
583 | EOF | |
584 | if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then | |
585 | libc_cv_need_minus_P=no | |
586 | else | |
587 | libc_cv_need_minus_P=yes | |
588 | fi | |
589 | rm -f conftest*]) | |
28f540f4 RM |
590 | if test $libc_cv_need_minus_P = yes; then |
591 | config_vars="$config_vars | |
592 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
593 | fi | |
594 | ||
1618c590 UD |
595 | # gcc 2.7.x has a bug where if -pipe is set, the assembler will always |
596 | # be told to read stdin. This causes the compiler to hang when fed an | |
597 | # .s file. | |
598 | if test $ac_cv_prog_gcc = yes; then | |
599 | case `${CC-cc} -v 2>&1` in | |
600 | *2.7*) | |
601 | # We must check this even if -pipe is not given here, because the user | |
602 | # might do `make CFLAGS=-pipe'. | |
603 | AC_CACHE_CHECK(for gcc 2.7.x -pipe bug, libc_cv_gcc_pipe_bug, [dnl | |
86187531 UD |
604 | cp /dev/null conftest.s |
605 | cat >conftest1.s <<EOF | |
606 | .nosuchdirective | |
1618c590 | 607 | EOF |
86187531 | 608 | if ${CC-cc} -pipe -c conftest.s <conftest1.s 2>/dev/null; then |
1618c590 UD |
609 | libc_cv_gcc_pipe_bug=no |
610 | else | |
611 | libc_cv_gcc_pipe_bug=yes | |
612 | fi | |
613 | rm -f conftest*]) | |
614 | if test $libc_cv_gcc_pipe_bug = yes; then | |
615 | makeCC="${CC-cc} -B\$(common-objpfx)" | |
616 | makeCFLAGS=$CFLAGS | |
617 | CFLAGS=`echo $CFLAGS |sed 's/-pipe//'` | |
618 | fi;; | |
619 | *) libc_cv_gcc_pipe_bug=no;; | |
620 | esac | |
621 | else | |
622 | libc_cv_gcc_pipe_bug=no | |
623 | fi | |
624 | ||
b8dc6a10 RM |
625 | AC_CACHE_CHECK(for assembler global-symbol directive, |
626 | libc_cv_asm_global_directive, [dnl | |
9a70fcab UD |
627 | libc_cv_asm_global_directive=UNKNOWN |
628 | for ac_globl in .globl .global; do | |
629 | cat > conftest.s <<EOF | |
630 | .text | |
631 | ${ac_globl} foo | |
ae1025be | 632 | foo: |
9a70fcab UD |
633 | EOF |
634 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then | |
635 | libc_cv_asm_global_directive=${ac_globl} | |
636 | fi | |
637 | rm -f conftest* | |
638 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
639 | done]) | |
9a70fcab UD |
640 | if test $libc_cv_asm_global_directive = UNKNOWN; then |
641 | AC_MSG_ERROR(cannot determine asm global directive) | |
642 | else | |
643 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
644 | fi | |
645 | ||
b8dc6a10 | 646 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 647 | cat > conftest.s <<EOF |
e215c478 | 648 | .text |
ae1025be | 649 | foo: |
df2a0c93 | 650 | .set glibc_conftest_frobozz,foo |
9a70fcab | 651 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 652 | EOF |
df2a0c93 RM |
653 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
654 | # (but it doesn't work), so we must do a linking check to be sure. | |
655 | cat > conftest1.c <<\EOF | |
656 | extern int glibc_conftest_frobozz; | |
657 | main () { printf ("%d\n", glibc_conftest_frobozz); } | |
658 | EOF | |
659 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
cb2f05ed | 660 | -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then |
e215c478 RM |
661 | libc_cv_asm_set_directive=yes |
662 | else | |
663 | libc_cv_asm_set_directive=no | |
664 | fi | |
65b3cbcb | 665 | rm -f conftest*]) |
e215c478 RM |
666 | if test $libc_cv_asm_set_directive = yes; then |
667 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
668 | fi | |
669 | ||
377a515b UD |
670 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
671 | [cat > conftest.s <<EOF | |
672 | .text | |
4cca6b86 | 673 | _sym: |
377a515b UD |
674 | .symver _sym,sym@VERS |
675 | EOF | |
676 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then | |
677 | libc_cv_asm_symver_directive=yes | |
678 | else | |
679 | libc_cv_asm_symver_directive=no | |
680 | fi | |
681 | rm -f conftest*]) | |
682 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
683 | if test $libc_cv_asm_symver_directive = yes; then | |
684 | cat > conftest.s <<EOF | |
685 | .text | |
4cca6b86 | 686 | _sym: |
377a515b UD |
687 | .symver _sym,sym@VERS |
688 | EOF | |
689 | cat > conftest.map <<EOF | |
f43ce637 | 690 | VERS_1 { |
377a515b UD |
691 | global: sym; |
692 | }; | |
f43ce637 UD |
693 | |
694 | VERS_2 { | |
695 | global: sym; | |
696 | } VERS_1; | |
377a515b UD |
697 | EOF |
698 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then | |
5ae3e846 UD |
699 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o |
700 | -nostartfiles -nostdlib | |
ae1025be UD |
701 | -Wl,--version-script,conftest.map |
702 | 1>&AC_FD_CC]); | |
377a515b UD |
703 | then |
704 | libc_cv_ld_version_script_option=yes | |
705 | else | |
706 | libc_cv_ld_version_script_option=no | |
707 | fi | |
708 | else | |
709 | libc_cv_ld_version_script_option=no | |
710 | fi | |
711 | else | |
712 | libc_cv_ld_version_script_option=no | |
713 | fi | |
714 | rm -f conftest*]) | |
715 | if test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
716 | test $libc_cv_ld_version_script_option = yes && |
717 | test $enable_versioning = yes; then | |
377a515b UD |
718 | VERSIONING=yes |
719 | AC_DEFINE(DO_VERSIONING) | |
720 | else | |
721 | VERSIONING=no | |
722 | fi | |
723 | AC_SUBST(VERSIONING) | |
724 | ||
f43ce637 UD |
725 | if test $VERSIONING = no; then |
726 | echo "\ | |
f4017d20 | 727 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
728 | *** versioning will introduce incompatibilities so that old binaries |
729 | *** will not run anymore. | |
730 | *** For versioning you need recent binutils (binutils-2.8.1.0.17 or newer)." | |
731 | fi | |
fd26970f UD |
732 | if test $elf = yes; then |
733 | AC_CACHE_CHECK(for .previous assembler directive, | |
734 | libc_cv_asm_previous_directive, [dnl | |
735 | cat > conftest.s <<EOF | |
736 | .section foo_section | |
737 | .previous | |
738 | EOF | |
739 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then | |
740 | libc_cv_asm_previous_directive=yes | |
741 | else | |
742 | libc_cv_asm_previous_directive=no | |
743 | fi | |
744 | rm -f conftest*]) | |
745 | if test $libc_cv_asm_previous_directive = yes; then | |
746 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
747 | else | |
748 | AC_CACHE_CHECK(for .popsection assembler directive, | |
749 | libc_cv_asm_popsection_directive, [dnl | |
750 | cat > conftest.s <<EOF | |
751 | .pushsection foo_section | |
752 | .popsection | |
753 | EOF | |
754 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then | |
755 | libc_cv_asm_popsection_directive=yes | |
756 | else | |
757 | libc_cv_asm_popsection_directive=no | |
758 | fi | |
759 | rm -f conftest*]) | |
760 | if test $libc_cv_asm_popsection_directive = yes; then | |
761 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
762 | fi | |
763 | fi | |
764 | fi | |
765 | ||
b8dc6a10 RM |
766 | if test $elf != yes; then |
767 | AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini, | |
768 | [AC_TRY_COMPILE(, [asm (".section .init"); | |
84724245 RM |
769 | asm (".section .fini"); |
770 | asm (".text");], | |
b8dc6a10 RM |
771 | libc_cv_have_initfini=yes, |
772 | libc_cv_have_initfini=no)]) | |
773 | AC_SUBST(libc_cv_have_initfini)dnl | |
774 | if test $libc_cv_have_initfini = yes; then | |
775 | AC_DEFINE(HAVE_INITFINI) | |
776 | fi | |
777 | fi | |
e215c478 | 778 | |
9a0a462c UD |
779 | dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) |
780 | AC_DEFUN(AC_CHECK_ASM_UNDERSCORE, | |
781 | [cat > conftest.$ac_ext <<EOF | |
782 | dnl This sometimes fails to find confdefs.h, for some reason. | |
783 | dnl [#]line __oline__ "[$]0" | |
784 | [#]line __oline__ "configure" | |
785 | #include "confdefs.h" | |
786 | void underscore_test(void) { | |
787 | return; } | |
788 | EOF | |
789 | if AC_TRY_EVAL(ac_compile); then | |
790 | if grep _underscore_test conftest* >/dev/null; then | |
791 | ifelse([$1], , :, [rm -f conftest* | |
792 | $1]) | |
793 | else | |
794 | ifelse([$2], , , [rm -f conftest* | |
795 | $2]) | |
796 | fi | |
797 | else | |
798 | echo "configure: failed program was:" >&AC_FD_CC | |
799 | cat conftest.$ac_ext >&AC_FD_CC | |
800 | ifelse([$2], , , [rm -f conftest* | |
801 | $2]) | |
802 | fi | |
803 | rm -f conftest*]) | |
804 | ||
c224a18a RM |
805 | if test $elf = yes; then |
806 | libc_cv_asm_underscores=no | |
807 | else | |
9a0a462c UD |
808 | if test $ac_cv_prog_cc_works = yes; then |
809 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
810 | [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();], | |
811 | libc_cv_asm_underscores=yes, | |
812 | libc_cv_asm_underscores=no)]) | |
813 | else | |
814 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
815 | [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes, | |
816 | libc_cv_asm_underscores=no)]) | |
817 | fi | |
c224a18a RM |
818 | fi |
819 | if test $libc_cv_asm_underscores = no; then | |
820 | AC_DEFINE(NO_UNDERSCORES) | |
821 | fi | |
822 | ||
823 | if test $elf = yes; then | |
824 | libc_cv_weak_symbols=yes | |
9a97d1f7 UD |
825 | fi |
826 | ||
827 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
c224a18a RM |
828 | [dnl |
829 | cat > conftest.s <<EOF | |
830 | .text | |
831 | ${libc_cv_asm_global_directive} foo | |
ae1025be | 832 | foo: |
c224a18a RM |
833 | .weak foo |
834 | .weak bar; bar = foo | |
835 | EOF | |
9a97d1f7 UD |
836 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then |
837 | libc_cv_asm_weak_directive=yes | |
838 | else | |
839 | libc_cv_asm_weak_directive=no | |
840 | fi | |
841 | rm -f conftest*]) | |
c224a18a | 842 | |
c8cf0b14 | 843 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
844 | AC_CACHE_CHECK(for assembler .weakext directive, |
845 | libc_cv_asm_weakext_directive, | |
846 | [dnl | |
847 | cat > conftest.s <<EOF | |
848 | .text | |
849 | ${libc_cv_asm_global_directive} foo | |
ae1025be | 850 | foo: |
f802accb UD |
851 | .weakext bar foo |
852 | .weakext baz | |
853 | ${libc_cv_asm_global_directive} baz | |
9a97d1f7 | 854 | baz: |
c224a18a RM |
855 | EOF |
856 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then | |
857 | libc_cv_asm_weakext_directive=yes | |
858 | else | |
859 | libc_cv_asm_weakext_directive=no | |
860 | fi | |
861 | rm -f conftest*]) | |
862 | ||
9a97d1f7 | 863 | fi # no .weak |
c224a18a | 864 | |
ffcf9634 | 865 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 866 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 867 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
868 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
869 | fi | |
870 | ||
a641835a RM |
871 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
872 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 873 | _start () {} |
dcf0671d UD |
874 | int __eh_pc; |
875 | __throw () {} | |
a641835a | 876 | EOF |
dcea62dd RM |
877 | dnl No \ in command here because it ends up inside ''. |
878 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
879 | -nostdlib -nostartfiles -Wl,--no-whole-archive | |
ae1025be | 880 | -o conftest conftest.c 1>&AC_FD_CC]); then |
a641835a RM |
881 | libc_cv_ld_no_whole_archive=yes |
882 | else | |
883 | libc_cv_ld_no_whole_archive=no | |
884 | fi | |
885 | rm -f conftest*]) | |
886 | AC_SUBST(libc_cv_ld_no_whole_archive)dnl | |
887 | ||
b236e99d UD |
888 | AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl |
889 | cat > conftest.c <<\EOF | |
890 | _start () {} | |
891 | int __eh_pc; | |
892 | __throw () {} | |
893 | EOF | |
894 | dnl No \ in command here because it ends up inside ''. | |
895 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
896 | -nostdlib -nostartfiles -fno-exceptions | |
ae1025be | 897 | -o conftest conftest.c 1>&AC_FD_CC]); then |
b236e99d UD |
898 | libc_cv_gcc_no_exceptions=yes |
899 | else | |
900 | libc_cv_gcc_no_exceptions=no | |
901 | fi | |
902 | rm -f conftest*]) | |
903 | AC_SUBST(libc_cv_gcc_no_exceptions)dnl | |
904 | ||
d71b808a UD |
905 | if test "$base_machine" = alpha ; then |
906 | AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl | |
907 | cat > conftest.c <<\EOF | |
908 | foo () { } | |
909 | EOF | |
910 | dnl | |
9756dfe1 | 911 | if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]); |
d71b808a UD |
912 | then |
913 | libc_cv_gcc_alpha_ng_prefix=yes | |
914 | else | |
915 | libc_cv_gcc_alpha_ng_prefix=no | |
916 | fi | |
917 | rm -f conftest* ]) | |
918 | if test $libc_cv_gcc_alpha_ng_prefix = yes ; then | |
919 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$") | |
920 | else | |
921 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "") | |
922 | fi | |
923 | fi | |
924 | ||
650425ce UD |
925 | AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info, |
926 | [cat > conftest.c <<EOF | |
927 | #line __oline__ "configure" | |
928 | static char __EH_FRAME_BEGIN__[]; | |
929 | _start () | |
930 | { | |
9756dfe1 | 931 | #ifdef CHECK__register_frame |
650425ce UD |
932 | __register_frame (__EH_FRAME_BEGIN__); |
933 | __deregister_frame (__EH_FRAME_BEGIN__); | |
9756dfe1 UD |
934 | #endif |
935 | #ifdef CHECK__register_frame_info | |
936 | __register_frame_info (__EH_FRAME_BEGIN__); | |
937 | __deregister_frame_info (__EH_FRAME_BEGIN__); | |
938 | #endif | |
650425ce UD |
939 | } |
940 | int __eh_pc; | |
941 | __throw () {} | |
942 | /* FIXME: this is fragile. */ | |
943 | malloc () {} | |
944 | strcmp () {} | |
945 | strlen () {} | |
946 | memcpy () {} | |
947 | memset () {} | |
948 | free () {} | |
949 | abort () {} | |
dfd2257a | 950 | __bzero () {} |
650425ce UD |
951 | EOF |
952 | dnl No \ in command here because it ends up inside ''. | |
9756dfe1 | 953 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info |
650425ce UD |
954 | -nostdlib -nostartfiles |
955 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
9756dfe1 | 956 | libc_cv_gcc_dwarf2_unwind_info=static |
650425ce UD |
957 | else |
958 | libc_cv_gcc_dwarf2_unwind_info=no | |
959 | fi | |
9756dfe1 UD |
960 | if test $libc_cv_gcc_dwarf2_unwind_info = no; then |
961 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame | |
962 | -nostdlib -nostartfiles | |
963 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
964 | libc_cv_gcc_dwarf2_unwind_info=yes | |
965 | else | |
966 | libc_cv_gcc_dwarf2_unwind_info=no | |
967 | fi | |
968 | fi | |
650425ce | 969 | rm -f conftest*]) |
9756dfe1 UD |
970 | case $libc_cv_gcc_dwarf2_unwind_info in |
971 | yes) | |
650425ce | 972 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) |
9756dfe1 UD |
973 | ;; |
974 | static) | |
975 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) | |
976 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC) | |
977 | ;; | |
978 | esac | |
650425ce | 979 | |
c224a18a RM |
980 | ### End of automated tests. |
981 | ### Now run sysdeps configure fragments. | |
982 | ||
28f540f4 RM |
983 | # sysdeps configure fragments may set these with files to be linked below. |
984 | libc_link_dests= | |
985 | libc_link_sources= | |
986 | ||
987 | # Iterate over all the sysdep directories we will use, running their | |
988 | # configure fragments, and looking for a uname implementation. | |
989 | uname= | |
990 | for dir in $sysnames; do | |
57ba7bb4 UD |
991 | case $dir in |
992 | /*) dest=$dir ;; | |
993 | *) dest=$srcdir/$dir ;; | |
994 | esac | |
995 | if test -r $dest/configure; then | |
996 | AC_MSG_RESULT(running configure fragment for $dest) | |
997 | . $dest/configure | |
28f540f4 | 998 | fi |
4ca84cff | 999 | [ |
28f540f4 | 1000 | if test -z "$uname"; then |
e7f1f046 UD |
1001 | if test -r $dest/uname.c || |
1002 | test -r $dest/uname.S || | |
1003 | { test -r $dest/syscalls.list && | |
1004 | grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then | |
b86199fb | 1005 | uname=$dir |
4ca84cff | 1006 | fi |
28f540f4 | 1007 | fi |
4ca84cff | 1008 | ]dnl |
28f540f4 RM |
1009 | done |
1010 | ||
1011 | AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`) | |
1012 | ||
1013 | # If we will use the generic uname implementation, we must figure out what | |
1014 | # it will say by examining the system, and write the results in config-name.h. | |
e7f1f046 | 1015 | if test "$uname" = "sysdeps/generic"; then |
28f540f4 RM |
1016 | |
1017 | changequote(,)dnl | |
1018 | uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'` | |
1019 | changequote([,])dnl | |
1020 | if test $uname_sysname != $config_os; then | |
1021 | config_release=`echo $config_os | sed s/$uname_sysname//` | |
1022 | fi | |
1023 | dnl | |
1024 | AC_DEFUN(LIBC_KERNEL_ID, [dnl | |
1025 | if test -r /vmunix; then | |
1026 | kernel_id=`strings /vmunix | grep UNIX` | |
1027 | elif test -r /dynix; then | |
1028 | kernel_id=`strings /dynix | grep DYNIX` | |
1029 | else | |
1030 | kernel_id= | |
1031 | fi | |
1032 | ])dnl | |
1033 | ||
b8dc6a10 | 1034 | AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl |
28f540f4 RM |
1035 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
1036 | changequote(,)dnl | |
1037 | kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'` | |
1038 | changequote([,])dnl | |
1039 | if test x`echo "$config_release" | sed "s/^$kernel_release//"` \ | |
1040 | != x$config_release; then | |
1041 | # The configuration release is a substring of the kernel release. | |
1042 | libc_cv_uname_release=$kernel_release | |
1043 | elif test x$config_release != x; then | |
1044 | libc_cv_uname_release=$config_release | |
1045 | elif test x$kernel_release != x; then | |
1046 | libc_cv_uname_release=$kernel_release | |
1047 | else | |
1048 | libc_cv_uname_release=unknown | |
1049 | fi]) | |
28f540f4 RM |
1050 | uname_release="$libc_cv_uname_release" |
1051 | ||
b8dc6a10 | 1052 | AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl |
28f540f4 RM |
1053 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
1054 | changequote(,)dnl | |
1055 | kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'` | |
1056 | changequote([,])dnl | |
1057 | if test -n "$kernel_version"; then | |
1058 | libc_cv_uname_version="$kernel_version" | |
1059 | else | |
1060 | libc_cv_uname_version=unknown | |
1061 | fi]) | |
28f540f4 RM |
1062 | uname_version="$libc_cv_uname_version" |
1063 | ||
1064 | AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl | |
1065 | config_uname=config-name.h:config-name.in | |
1066 | else | |
1067 | # For non-generic uname, we don't need to create config-name.h at all. | |
1068 | config_uname= | |
1069 | fi | |
1070 | ||
96aa2d94 RM |
1071 | AC_MSG_CHECKING(stdio selection) |
1072 | AC_SUBST(stdio) | |
1073 | case $stdio in | |
1074 | libio) AC_DEFINE(USE_IN_LIBIO) ;; | |
1075 | default) stdio=stdio ;; | |
1076 | esac | |
1077 | AC_MSG_RESULT($stdio) | |
1078 | ||
26b4d766 UD |
1079 | AC_MSG_CHECKING(ldap selection) |
1080 | AC_SUBST(LDAP) | |
1081 | case $add_ons in | |
1082 | *ldap*) | |
1083 | ldap=yes | |
1084 | LDAP=ldap ;; | |
1085 | *) ldap=no | |
1086 | LDAP= ;; | |
1087 | esac | |
1088 | AC_MSG_RESULT($ldap) | |
1089 | ||
84384f5b UD |
1090 | AC_SUBST(libc_cv_slibdir) |
1091 | AC_SUBST(libc_cv_sysconfdir) | |
1ef32c3d UD |
1092 | AC_SUBST(libc_cv_rootsbindir) |
1093 | ||
1094 | AC_SUBST(has_ldconfig) | |
84384f5b | 1095 | |
c224a18a | 1096 | AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) |
28f540f4 RM |
1097 | if test $gnu_ld = yes; then |
1098 | AC_DEFINE(HAVE_GNU_LD) | |
1099 | fi | |
1100 | if test $gnu_as = yes; then | |
1101 | AC_DEFINE(HAVE_GNU_AS) | |
1102 | fi | |
1103 | if test $elf = yes; then | |
1104 | AC_DEFINE(HAVE_ELF) | |
1105 | fi | |
28f540f4 | 1106 | |
650425ce | 1107 | AC_SUBST(static) |
ff3d7ed3 RM |
1108 | AC_SUBST(shared) |
1109 | if test $shared = default; then | |
1110 | if test $gnu_ld = yes; then | |
1111 | shared=$elf | |
f65fd747 UD |
1112 | else |
1113 | # For now we do not assume shared libs are available. In future more | |
1114 | # tests might become available. | |
1115 | shared=no | |
ff3d7ed3 RM |
1116 | fi |
1117 | fi | |
cc3fa755 | 1118 | |
9756dfe1 UD |
1119 | dnl We must not allow compilation without static library on some platforms. |
1120 | if test $static = no && test $shared = yes; then | |
1121 | case "$host_os" in | |
1122 | linux* | gnu*) | |
1123 | AC_MSG_ERROR([ | |
1124 | *** You must compile with support for the static library since the shared | |
1125 | *** library uses it. Restart configure without \`--disable-static'.]) | |
1126 | ;; | |
1127 | *) | |
1128 | ;; | |
1129 | esac | |
1130 | fi | |
1131 | ||
cc3fa755 UD |
1132 | AC_CACHE_CHECK([whether -fPIC is default], pic_default, |
1133 | [pic_default=yes | |
1134 | cat > conftest.c <<EOF | |
9756dfe1 | 1135 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
1136 | # error PIC is default. |
1137 | #endif | |
1138 | EOF | |
1139 | if eval "${CC-cc} -S conftest.c 2>&AC_FD_CC 1>&AC_FD_CC"; then | |
1140 | pic_default=no | |
1141 | fi | |
1142 | rm -f conftest.*]) | |
1143 | AC_SUBST(pic_default) | |
1144 | ||
ff3d7ed3 RM |
1145 | AC_SUBST(profile) |
1146 | AC_SUBST(omitfp) | |
5a97622d | 1147 | AC_SUBST(bounded) |
5107cf1d | 1148 | AC_SUBST(static_nss) |
5ae3e846 | 1149 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 1150 | |
edf5b2d7 UD |
1151 | AC_SUBST(DEFINES) |
1152 | ||
28f540f4 RM |
1153 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
1154 | config_makefile= | |
1155 | else | |
1156 | config_makefile=Makefile | |
1157 | fi | |
1158 | ||
df4ef2ab UD |
1159 | VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h` |
1160 | AC_SUBST(VERSION) | |
1161 | ||
1618c590 UD |
1162 | if test $libc_cv_gcc_pipe_bug = yes; then |
1163 | realCC=$CC | |
1164 | CC=$makeCC | |
1165 | CFLAGS=$makeCFLAGS | |
1166 | fi | |
1167 | AC_OUTPUT_COMMANDS([ | |
1168 | if test "$realCC"; then | |
1169 | sed -e 's/%{pipe:-}/%|/g' `$realCC -print-file-name=specs` >specsT | |
1170 | mv specsT specs | |
1171 | fi], [realCC=$realCC]) | |
1172 | ||
ae1025be | 1173 | AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, , |
5107cf1d | 1174 | [echo '$config_vars' >> config.make; test -d bits || mkdir bits]) |