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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 | 5 | AC_CONFIG_HEADER(config.h) |
5bc2f642 | 6 | AC_CONFIG_AUX_DIR(scripts) |
28f540f4 RM |
7 | |
8 | # This will get text that should go into config.make. | |
9 | config_vars= | |
10 | ||
11 | # Check for a --with-gmp argument and set gmp-srcdir in config.make. | |
12 | AC_ARG_WITH(gmp, dnl | |
13 | --with-gmp=DIRECTORY find GMP source code in DIRECTORY (not needed), | |
14 | [dnl | |
15 | case "$with_gmp" in | |
16 | yes) AC_MSG_ERROR(--with-gmp requires an argument; use --with-gmp=DIRECTORY) ;; | |
17 | ''|no) ;; | |
18 | *) config_vars="$config_vars | |
19 | gmp-srcdir = $withval" ;; | |
20 | esac | |
21 | ]) | |
75914335 RM |
22 | # Check for a --with-gettext argument and set gettext-srcdir in config.make. |
23 | AC_ARG_WITH(gettext, dnl | |
24 | --with-gettext=DIR find GNU gettext source code in DIR (not needed), | |
25 | [dnl | |
26 | case "$with_gettext" in | |
27 | yes) | |
28 | AC_MSG_ERROR(--with-gettext requires an argument; use --with-gettext=DIR) ;; | |
29 | ''|no) ;; | |
30 | *) | |
31 | config_vars="$config_vars | |
32 | gettext-srcdir = $withval" ;; | |
33 | esac | |
34 | ]) | |
28f540f4 | 35 | |
ff3d7ed3 | 36 | dnl Arguments to specify presence of other packages/features. |
335aa320 | 37 | AC_ARG_WITH(fp, dnl |
a18f587d | 38 | [ --with-fp if using floating-point hardware [default=yes]], |
335aa320 | 39 | with_fp=$withval, with_fp=yes) |
650425ce | 40 | AC_ARG_WITH(binutils, dnl |
a5a0310d | 41 | --with-binutils=PATH specify location of binutils (as and ld), |
650425ce | 42 | path_binutils=$withval, path_binutils='') |
28f540f4 RM |
43 | AC_ARG_WITH(elf, dnl |
44 | --with-elf if using the ELF object format, | |
335aa320 | 45 | elf=$withval, elf=no) |
4d06461a UD |
46 | AC_ARG_WITH(cvs, dnl |
47 | [ --without-cvs if CVS should not be used], | |
48 | with_cvs=$withval, with_cvs=yes) | |
49 | AC_SUBST(with_cvs) | |
28f540f4 | 50 | |
dbe7a0f5 UD |
51 | AC_ARG_WITH(headers, dnl |
52 | [ --with-headers=PATH location of system headers to use | |
53 | [e.g. /usr/src/linux/include] | |
54 | [default=compiler default]], | |
55 | sysheaders=$withval, sysheaders='') | |
56 | ||
deab9dea RM |
57 | AC_ARG_ENABLE(libio, dnl |
58 | [ --enable-libio build in GNU libio instead of GNU stdio], | |
f4482045 RM |
59 | [if test $enableval = yes; then |
60 | stdio=libio | |
61 | else | |
62 | stdio=stdio | |
63 | fi], | |
64 | stdio=default) | |
deab9dea | 65 | |
a18f587d UD |
66 | AC_ARG_ENABLE(sanity-checks, dnl |
67 | [ --disable-sanity-checks really do not use threads (should not be used | |
68 | except in special situations) [default=yes]], | |
69 | enable_sanity=$enableval, enable_sanity=yes) | |
70 | ||
650425ce UD |
71 | dnl Arguments to enable or disable building the static, shared, profiled, |
72 | dnl and -fomit-frame-pointer libraries. | |
73 | AC_ARG_ENABLE(static, dnl | |
74 | [ --enable-static build static library [default=yes]], | |
75 | static=$enableval, static=yes) | |
ff3d7ed3 RM |
76 | AC_ARG_ENABLE(shared, dnl |
77 | [ --enable-shared build shared library [default=yes if GNU ld & ELF]], | |
6b3a2224 | 78 | shared=$enableval, shared=default) |
ff3d7ed3 RM |
79 | AC_ARG_ENABLE(profile, dnl |
80 | [ --enable-profile build profiled library [default=yes]], | |
6b3a2224 | 81 | profile=$enableval, profile=yes) |
ff3d7ed3 | 82 | AC_ARG_ENABLE(omitfp, dnl |
6b3a2224 RM |
83 | [ --enable-omitfp build undebuggable optimized library [default=no]], |
84 | omitfp=$enableval, omitfp=no) | |
5a97622d UD |
85 | AC_ARG_ENABLE(bounded, dnl |
86 | [ --enable-bounded build with runtime bounds checking [default=no]], | |
87 | bounded=$enableval, bounded=no) | |
650425ce UD |
88 | AC_ARG_ENABLE(versioning, dnl |
89 | [ --disable-versioning do not include versioning information in the | |
90 | library objects [default=yes if supported]], | |
91 | enable_versioning=$enableval, enable_versioning=yes) | |
6b3a2224 RM |
92 | |
93 | dnl Generic infrastructure for drop-in additions to libc. | |
94 | AC_ARG_ENABLE(add-ons, dnl | |
73237de3 UD |
95 | [ --enable-add-ons[=DIR1,DIR2]... |
96 | configure and build add-ons in DIR1,DIR2,... | |
97 | search for add-ons if no parameter given], | |
61952351 | 98 | [case "$enableval" in |
b9b49b44 UD |
99 | yes) if test "$srcdir" = "."; then |
100 | add_ons=`echo */configure | sed -e 's!/configure!!g'` | |
101 | else | |
102 | add_ons=`echo $srcdir/*/configure | \ | |
566efee2 | 103 | sed -e 's!/configure!!g' -e "s!$srcdir/!!g"` |
b9b49b44 | 104 | fi;; |
61952351 UD |
105 | *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;; |
106 | esac], | |
107 | [add_ons=]) | |
108 | ||
6b3a2224 | 109 | AC_CONFIG_SUBDIRS($add_ons) |
57ba7bb4 | 110 | add_ons_pfx= |
da74e902 | 111 | if test x"$add_ons" != x; then |
57ba7bb4 | 112 | for f in $add_ons; do |
af6f3906 UD |
113 | # Test whether such a subdir really exists. |
114 | if test -d $srcdir/$f; then | |
115 | add_ons_pfx="$add_ons_pfx $f/" | |
116 | else | |
117 | AC_MSG_ERROR(add-on directory \"$f\" does not exist) | |
118 | fi | |
57ba7bb4 UD |
119 | done |
120 | fi | |
ff3d7ed3 | 121 | |
5107cf1d UD |
122 | dnl On some platforms we cannot use dynamic loading. We must provide |
123 | dnl static NSS modules. | |
124 | AC_ARG_ENABLE(static-nss, dnl | |
125 | [ --enable-static-nss build static NSS modules [default=no]], | |
126 | static_nss=$enableval, static_nss=no) | |
127 | if test x"$static_nss" = xyes; then | |
128 | AC_DEFINE(DO_STATIC_NSS) | |
129 | fi | |
130 | ||
73237de3 | 131 | AC_ARG_ENABLE(force-install, |
310b3460 | 132 | [ --disable-force-install don't force installation of files from this package, |
73237de3 UD |
133 | even if they are older than the installed files], |
134 | force_install=$enableval, force_install=yes) | |
135 | AC_SUBST(force_install) | |
136 | ||
28f540f4 | 137 | AC_CANONICAL_HOST |
8a523922 UD |
138 | |
139 | # The way shlib-versions is used to generate soversions.mk uses a | |
140 | # fairly simplistic model for name recognition that can't distinguish | |
141 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
142 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
143 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
144 | case "$host_os" in | |
145 | linux*) | |
146 | ;; | |
147 | gnu*) | |
148 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
149 | ;; | |
150 | esac | |
151 | ||
61eb22d3 UD |
152 | ### |
153 | ### I put this here to prevent those annoying emails from people who cannot | |
154 | ### read and try to compile glibc on unsupported platforms. --drepper | |
155 | ### | |
650425ce UD |
156 | ### By using the undocumented --enable-hacker-mode option for configure |
157 | ### one can skip this test to make the configuration not fail for unsupported | |
158 | ### platforms. | |
159 | ### | |
160 | if test -z "$enable_hacker_mode"; then | |
4d06461a UD |
161 | case "$machine-$host_os" in |
162 | *-linux* | *-gnu* | arm*-none*) | |
650425ce UD |
163 | ;; |
164 | *) | |
165 | echo "*** The GNU C library is currently not available for this platform." | |
166 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
167 | echo "*** might never happen. So, if you have interest to see glibc on" | |
168 | echo "*** this platform visit" | |
b9b49b44 | 169 | echo "*** http://www.gnu.org/software/libc/porting.html" |
650425ce UD |
170 | echo "*** and join the group of porters" |
171 | exit 1 | |
172 | ;; | |
173 | esac | |
174 | fi | |
61eb22d3 | 175 | |
28f540f4 RM |
176 | # We keep the original values in `$config_*' and never modify them, so we |
177 | # can write them unchanged into config.make. Everything else uses | |
178 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
179 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
180 | ||
a2fe9c76 RM |
181 | # Some configurations imply other options. |
182 | case "$host_os" in | |
183 | gnu* | linux* | bsd4.4* | netbsd* | freebsd*) | |
184 | # These systems always use GNU tools. | |
c8cf0b14 | 185 | gnu_ld=yes gnu_as=yes ;; |
a2fe9c76 RM |
186 | esac |
187 | case "$host_os" in | |
7799b7b3 UD |
188 | # i586-linuxaout is mangled into i586-pc-linux-gnuaout |
189 | linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*) | |
3776d592 | 190 | ;; |
ba909880 | 191 | gnu* | linux* | sysv4* | solaris2* | irix6*) |
3776d592 RM |
192 | # These systems (almost) always use the ELF format. |
193 | elf=yes | |
84724245 | 194 | ;; |
a2fe9c76 RM |
195 | esac |
196 | ||
28f540f4 RM |
197 | machine=$config_machine |
198 | vendor=$config_vendor | |
199 | os=$config_os | |
200 | ||
201 | dnl We need to use [ and ] for other purposes for a while now. | |
202 | changequote(,)dnl | |
203 | # Expand the configuration machine name into a subdirectory by architecture | |
204 | # type and particular chip. | |
205 | case "$machine" in | |
f0523145 RM |
206 | a29k | am29000) base_machine=a29k machine=a29k ;; |
207 | alpha*) base_machine=alpha machine=alpha/$machine ;; | |
7799b7b3 | 208 | arm*) base_machine=arm machine=arm/$machine ;; |
60c96635 UD |
209 | c3[012]) base_machine=cx0 machine=cx0/c30 ;; |
210 | c4[04]) base_machine=cx0 machine=cx0/c40 ;; | |
f0523145 | 211 | hppa*) base_machine=hppa machine=hppa/$machine ;; |
a8922de8 | 212 | i[3456]86) base_machine=i386 machine=i386/$machine ;; |
f0523145 RM |
213 | m680?0) base_machine=m68k machine=m68k/$machine ;; |
214 | m68k) base_machine=m68k machine=m68k/m68020 ;; | |
215 | m88???) base_machine=m88k machine=m88k/$machine ;; | |
216 | m88k) base_machine=m88k machine=m88k/m88100 ;; | |
f0523145 | 217 | mips64*) base_machine=mips64 machine=mips/mips64/$machine ;; |
9a97d1f7 UD |
218 | mips*) base_machine=mips |
219 | case "`uname -m`" in | |
220 | IP22) machine=mips/mips3 ;; | |
221 | *) machine=mips/$machine ,, | |
222 | esac ;; | |
ca34d7a7 UD |
223 | sparc | sparcv[67]) |
224 | base_machine=sparc machine=sparc/sparc32 ;; | |
225 | sparcv8 | supersparc | hypersparc) | |
226 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
227 | sparc64 | ultrasparc) | |
228 | base_machine=sparc machine=sparc/sparc64 ;; | |
28f540f4 | 229 | esac |
f0523145 RM |
230 | changequote([,])dnl |
231 | AC_SUBST(base_machine) | |
28f540f4 | 232 | |
dfd2257a UD |
233 | if test "$base_machine" = "i386"; then |
234 | AC_DEFINE(USE_REGPARMS) | |
235 | fi | |
236 | ||
f0523145 | 237 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 238 | # This can take a while to compute. |
f0523145 | 239 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 240 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
241 | dnl We need to use [ and ] for other purposes for a while now. |
242 | changequote(,)dnl | |
28f540f4 RM |
243 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
244 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
245 | ||
246 | case "$os" in | |
247 | gnu*) | |
248 | base_os=mach/hurd ;; | |
883bc19b | 249 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 250 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 251 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 252 | base_os=unix/bsd ;; |
d586354e | 253 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 254 | base_os=unix/sysv ;; |
f802accb UD |
255 | irix6*) |
256 | base_os=unix/sysv/irix6/$os ;; | |
d586354e | 257 | solaris[2-9]*) |
28f540f4 RM |
258 | base_os=unix/sysv/sysv4 ;; |
259 | none) | |
260 | base_os=standalone ;; | |
261 | *) | |
262 | base_os='' ;; | |
263 | esac | |
264 | ||
265 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
266 | tail=$os | |
267 | ostry=$os | |
268 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
269 | ostry="$ostry /$o" | |
270 | tail=$o | |
75914335 | 271 | done |
28f540f4 RM |
272 | o=`echo $tail | sed 's/[0-9]*$//'` |
273 | if test $o != $tail; then | |
274 | ostry="$ostry /$o" | |
275 | fi | |
ec4b0518 UD |
276 | # For linux-gnu, try linux-gnu, then linux. |
277 | o=`echo $tail | sed 's/-.*$//'` | |
278 | if test $o != $tail; then | |
279 | ostry="$ostry /$o" | |
280 | fi | |
28f540f4 RM |
281 | |
282 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
283 | base= | |
284 | tail=$base_os | |
285 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
286 | set $b | |
287 | base="$base /$1" | |
288 | tail="$2" | |
289 | done | |
290 | ||
291 | # For sparc/sparc9, try sparc/sparc9 and then sparc. | |
292 | mach= | |
293 | tail=$machine | |
294 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do | |
295 | set $m | |
10ceac89 RM |
296 | # Prepend the machine's FPU directory unless --without-fp. |
297 | if test "$with_fp" = yes; then | |
298 | mach="$mach /$1/fpu" | |
82d00cab | 299 | fi |
28f540f4 RM |
300 | mach="$mach /$1" |
301 | tail="$2" | |
302 | done | |
303 | ||
304 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
305 | changequote([,])dnl | |
306 | ||
307 | # Find what sysdep directories exist. | |
308 | sysnames= | |
57ba7bb4 UD |
309 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" |
310 | for d in $add_ons_pfx ''; do | |
311 | for b in $base ''; do | |
312 | for m0 in $mach ''; do | |
313 | for v in /$vendor ''; do | |
ae828bc6 | 314 | test "$v" = / && continue |
57ba7bb4 | 315 | for o in /$ostry ''; do |
ae828bc6 | 316 | test "$o" = / && continue |
57ba7bb4 UD |
317 | for m in $mach ''; do |
318 | if test "$m0$b$v$o$m"; then | |
319 | try="${d}sysdeps$m0$b$v$o$m" | |
320 | test -n "$enable_debug_configure" && | |
321 | echo "$0 [DEBUG]: try $try" >&2 | |
322 | case $try in | |
323 | /*) dest=$try ;; | |
324 | *) dest=$srcdir/$try ;; | |
325 | esac | |
326 | if test -d $dest; then | |
327 | sysnames="$sysnames $try" | |
328 | { test -n "$o" || test -n "$b"; } && os_used=t | |
329 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
330 | fi | |
331 | fi | |
332 | done | |
28f540f4 RM |
333 | done |
334 | done | |
335 | done | |
336 | done | |
337 | done | |
57ba7bb4 | 338 | IFS="$ac_save_ifs" |
28f540f4 RM |
339 | |
340 | if test -z "$os_used" && test "$os" != none; then | |
341 | AC_MSG_ERROR(Operating system $os is not supported.) | |
342 | fi | |
343 | if test -z "$machine_used" && test "$machine" != none; then | |
344 | AC_MSG_ERROR(The $machine is not supported.) | |
345 | fi | |
346 | ||
347 | # We have now validated the configuration. | |
348 | ||
335aa320 | 349 | |
10ceac89 RM |
350 | # If using ELF, look for an `elf' subdirectory of each machine directory. |
351 | # We prepend these rather than inserting them whereever the machine appears | |
352 | # because things specified by the machine's ELF ABI should override | |
353 | # OS-specific things, and should always be the same for any OS on the | |
354 | # machine (otherwise what's the point of an ABI?). | |
355 | if test "$elf" = yes; then | |
356 | elf_dirs= | |
57ba7bb4 UD |
357 | for d in $add_ons_pfx ''; do |
358 | case $d in | |
359 | /*) xsrcdir= ;; | |
360 | *) xsrcdir=$srcdir/ ;; | |
361 | esac | |
362 | for m in $mach; do | |
363 | if test -d $xsrcdir${d}sysdeps$m/elf; then | |
c2bb8cab | 364 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" |
57ba7bb4 UD |
365 | fi |
366 | done | |
28f540f4 | 367 | done |
57ba7bb4 | 368 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" |
28f540f4 RM |
369 | fi |
370 | ||
335aa320 | 371 | |
28f540f4 RM |
372 | # Expand the list of system names into a full list of directories |
373 | # from each element's parent name and Implies file (if present). | |
374 | set $sysnames | |
e50ec9f9 | 375 | names= |
28f540f4 RM |
376 | while test $# -gt 0; do |
377 | name=$1 | |
378 | shift | |
379 | ||
e50ec9f9 | 380 | case " $names " in *" $name "*) |
f332db02 RM |
381 | # Already in the list. |
382 | continue | |
e50ec9f9 | 383 | esac |
f332db02 RM |
384 | |
385 | # Report each name as we discover it, so there is no long pause in output. | |
386 | echo $ac_n "$name $ac_c" >&AC_FD_MSG | |
387 | ||
57ba7bb4 UD |
388 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
389 | ||
390 | case $name in | |
391 | /*) xsrcdir= ;; | |
392 | *) xsrcdir=$srcdir/ ;; | |
393 | esac | |
394 | test -n "$enable_debug_configure" && | |
395 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
396 | ||
397 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 398 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
399 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
400 | implied= | |
401 | for x in $implied_candidate; do | |
402 | if test -d $xsrcdir$name_base/$x; then | |
403 | implied="$implied $name_base/$x"; | |
404 | else | |
405 | AC_MSG_WARN($name/Implies specifies nonexistent $x) | |
406 | fi | |
28f540f4 RM |
407 | done |
408 | else | |
409 | implied= | |
410 | fi | |
411 | ||
412 | # Add NAME to the list of names. | |
413 | names="$names $name" | |
414 | ||
415 | # Find the parent of NAME, using the empty string if it has none. | |
416 | changequote(,)dnl | |
57ba7bb4 | 417 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
418 | changequote([,])dnl |
419 | ||
420 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
421 | # the list of names to be processed (the argument list). We prepend the | |
422 | # implied names to the list and append the parent. We want implied | |
423 | # directories to come before further directories inferred from the | |
424 | # configuration components; this ensures that for sysv4, unix/common | |
425 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
426 | # after sysv4). | |
427 | sysnames="`echo $implied $* $parent`" | |
428 | test -n "$sysnames" && set $sysnames | |
429 | done | |
430 | ||
431 | # Add the default directories. | |
f2ea0f5b | 432 | sysnames="$names sysdeps/generic" |
f332db02 RM |
433 | AC_SUBST(sysnames) |
434 | # The other names were emitted during the scan. | |
f2ea0f5b | 435 | AC_MSG_RESULT(sysdeps/generic) |
28f540f4 | 436 | |
f332db02 RM |
437 | |
438 | ### Locate tools. | |
28f540f4 | 439 | |
28f540f4 | 440 | AC_PROG_INSTALL |
26761c28 | 441 | if test "$INSTALL" = "${srcdir}/install-sh -c"; then |
28f540f4 | 442 | # The makefiles need to use a different form to find it in $srcdir. |
f41c8091 | 443 | INSTALL='\$(..)./install-sh -c' |
28f540f4 | 444 | fi |
0e3426bb | 445 | AC_PROG_LN_S |
ae828bc6 | 446 | |
63bda0c1 | 447 | # These programs are version sensitive. |
4bca4c17 UD |
448 | AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl |
449 | AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, | |
450 | [version \([egcst0-9.-]*\)], | |
451 | [egcs-2.91.*|egcs-2.90.2[789]|egcs-2.90.[3-9][0-9]|*2.8.[1-9]*|*2.9.[0-9]*], | |
452 | critic_missing=t) | |
63bda0c1 UD |
453 | AC_CHECK_PROG_VER(MAKE, make gmake, --version, |
454 | [version \([0-9][0-9.]*\), by], | |
6598ac30 | 455 | [3.75 | 3.76.[1-9]* | 3.7[789]* | 3.[89]*], critic_missing=t) |
63bda0c1 UD |
456 | |
457 | AC_CHECK_PROG_VER(MSGFMT, msgfmt gmsgfmt, --version, | |
458 | [GNU gettext.*\([0-9][0-9]*\.[0-9]*\)], | |
4bca4c17 | 459 | [0.[1-9][0-9] | [1-9].*], MSGFMT=: aux_missing=t) |
63bda0c1 UD |
460 | AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, |
461 | [GNU texinfo \([0-9][0-9.]*\)], | |
4bca4c17 | 462 | [3.1[1-9] | 3.[2-9][0-9]], MAKEINFO=: aux_missing=t) |
63bda0c1 | 463 | |
4bca4c17 UD |
464 | if test -n "$critic_missing"; then |
465 | AC_MSG_ERROR([ | |
63bda0c1 UD |
466 | *** Some critical program is missing or too old. |
467 | *** Check the INSTALL file for required versions.]) | |
4bca4c17 | 468 | fi |
63bda0c1 | 469 | |
4bca4c17 | 470 | test -n "$aux_missing" && AC_MSG_WARN([ |
63bda0c1 UD |
471 | *** An auxiliary program is missing or too old; |
472 | *** some features will be disabled. | |
473 | *** Check the INSTALL file for required versions.]) | |
28f540f4 | 474 | |
ebbad4cc | 475 | AC_PROG_CC_LOCAL |
22d57dd3 | 476 | AC_CANONICAL_BUILD |
072ebcef | 477 | if test $host != $build; then |
22d57dd3 | 478 | AC_CHECK_PROGS(BUILD_CC, gcc cc) |
072ebcef | 479 | fi |
779ae82e | 480 | AC_SUBST(cross_compiling) |
7c713e28 | 481 | AC_PROG_CPP |
650425ce | 482 | LIBC_PROG_BINUTILS |
ff3d7ed3 RM |
483 | AC_CHECK_TOOL(AR, ar) |
484 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
4bca4c17 | 485 | AC_CHECK_TOOL(MIG, mig) |
28f540f4 | 486 | |
dbe7a0f5 UD |
487 | # if using special system headers, find out the compiler's sekrit |
488 | # header directory and add that to the list. NOTE: Only does the right | |
489 | # thing on a system that doesn't need fixincludes. (Not presently a problem.) | |
490 | if test -n "$sysheaders"; then | |
491 | ccheaders=`$CC -print-file-name=include` | |
492 | SYSINCLUDES="-nostdinc -isystem $ccheaders -isystem $sysheaders" | |
493 | fi | |
494 | AC_SUBST(SYSINCLUDES) | |
495 | ||
97a47867 UD |
496 | # check if ranlib is necessary |
497 | AC_CACHE_CHECK(whether ranlib is necessary, libc_cv_ranlib_necessary, [dnl | |
498 | cat > conftest.c <<EOF | |
499 | int a; | |
500 | char b; | |
501 | void c(void) {} | |
502 | EOF | |
503 | $CC $CFLAGS -c conftest.c | |
504 | $AR cr conftest.a conftest.c | |
505 | cp conftest.a conftest2.a | |
506 | $RANLIB conftest.a | |
507 | if cmp -s conftest.a conftest2.a; then | |
508 | libc_cv_ranlib_necessary=no | |
f38931a9 | 509 | else |
97a47867 UD |
510 | libc_cv_ranlib_necessary=yes |
511 | fi | |
512 | rm -rf conftest*]) | |
513 | if test "$libc_cv_ranlib_necessary" = no; then | |
514 | RANLIB=: | |
f38931a9 | 515 | fi |
f38931a9 | 516 | |
3911660e UD |
517 | # Test if LD_LIBRARY_PATH contains the notation for the current directory |
518 | # since this would lead to problems installing/building glibc. | |
519 | # LD_LIBRARY_PATH contains the current directory if one of the following | |
520 | # is true: | |
521 | # - one of the terminals (":" and ";") is the first or last sign | |
522 | # - two terminals occur directly after each other | |
523 | # - the path contains an element with a dot in it | |
524 | AC_MSG_CHECKING(LD_LIBRARY_PATH variable) | |
525 | changequote(,)dnl | |
526 | case ${LD_LIBRARY_PATH} in | |
527 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
b3a86ae1 | 528 | ld_library_path_setting="contains current directory" |
3911660e UD |
529 | ;; |
530 | *) | |
531 | ld_library_path_setting="ok" | |
532 | ;; | |
533 | esac | |
534 | changequote([,])dnl | |
535 | AC_MSG_RESULT($ld_library_path_setting) | |
536 | if test "$ld_library_path_setting" != "ok"; then | |
63bda0c1 UD |
537 | AC_MSG_ERROR([ |
538 | *** LD_LIBRARY_PATH shouldn't contain the current directory when | |
539 | *** building glibc. Please change the environment variable | |
540 | *** and run configure again.]) | |
3911660e | 541 | fi |
8e31cf7e | 542 | |
84384f5b | 543 | AC_PATH_PROG(BASH, bash, no) |
a18f587d | 544 | if test "$BASH" != no && |
f43ce637 | 545 | $BASH -c 'test "$BASH_VERSINFO" \ |
6973fc01 | 546 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
547 | libc_cv_have_bash2=yes |
548 | else | |
549 | libc_cv_have_bash2=no | |
550 | fi | |
551 | AC_SUBST(libc_cv_have_bash2) | |
552 | ||
5290baf0 UD |
553 | dnl We need a ksh compatible shell for tzselect. |
554 | if test "$BASH" = no; then | |
555 | AC_PATH_PROG(KSH, ksh, no) | |
556 | if test "$KSH" = no; then | |
557 | libc_cv_have_ksh=no | |
558 | else | |
559 | libc_cv_have_ksh=yes | |
560 | fi | |
561 | else | |
562 | KSH="$BASH" | |
563 | AC_SUBST(KSH) | |
564 | libc_cv_have_ksh=yes | |
565 | fi | |
566 | AC_SUBST(libc_cv_have_ksh) | |
567 | ||
5aa8ff62 | 568 | AC_PROG_AWK |
a2b08ee5 UD |
569 | AC_PATH_PROGS(PERL, perl, no) |
570 | AC_SUBST(PERL) | |
571 | ||
b8dc6a10 | 572 | AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl |
28f540f4 RM |
573 | echo '#include <stddef.h> |
574 | FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c | |
575 | if eval "$ac_cpp conftest.c 2>/dev/null" \ | |
576 | | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then | |
577 | libc_cv_signed_size_t=no | |
578 | else | |
579 | libc_cv_signed_size_t=yes | |
580 | fi | |
581 | rm -f conftest*]) | |
28f540f4 RM |
582 | if test $libc_cv_signed_size_t = yes; then |
583 | dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings. | |
584 | cat >> confdefs.h <<\EOF | |
585 | #undef __SIZE_TYPE__ | |
586 | #define __SIZE_TYPE__ unsigned | |
587 | EOF | |
588 | fi | |
589 | ||
b8dc6a10 | 590 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
591 | AC_TRY_COMPILE(dnl |
592 | [#define __need_size_t | |
593 | #define __need_wchar_t | |
594 | #include <stddef.h> | |
595 | #define __need_NULL | |
596 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
597 | #ifdef offsetof | |
598 | #error stddef.h ignored __need_* | |
599 | #endif | |
600 | if (&size == NULL || &wchar == NULL) abort ();], | |
601 | libc_cv_friendly_stddef=yes, | |
602 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
603 | if test $libc_cv_friendly_stddef = yes; then |
604 | config_vars="$config_vars | |
605 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
606 | fi | |
607 | ||
b8dc6a10 RM |
608 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
609 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
610 | cat > conftest.S <<EOF |
611 | #include "confdefs.h" | |
612 | /* Nothing whatsoever. */ | |
613 | EOF | |
614 | if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then | |
615 | libc_cv_need_minus_P=no | |
616 | else | |
617 | libc_cv_need_minus_P=yes | |
618 | fi | |
619 | rm -f conftest*]) | |
28f540f4 RM |
620 | if test $libc_cv_need_minus_P = yes; then |
621 | config_vars="$config_vars | |
622 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
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*]) | |
b17277cf UD |
886 | if test $libc_cv_ld_no_whole_archive = yes; then |
887 | no_whole_archive=-Wl,--no-whole-archive | |
888 | fi | |
889 | AC_SUBST(no_whole_archive)dnl | |
a641835a | 890 | |
b236e99d UD |
891 | AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl |
892 | cat > conftest.c <<\EOF | |
893 | _start () {} | |
894 | int __eh_pc; | |
895 | __throw () {} | |
896 | EOF | |
897 | dnl No \ in command here because it ends up inside ''. | |
898 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
899 | -nostdlib -nostartfiles -fno-exceptions | |
ae1025be | 900 | -o conftest conftest.c 1>&AC_FD_CC]); then |
b236e99d UD |
901 | libc_cv_gcc_no_exceptions=yes |
902 | else | |
903 | libc_cv_gcc_no_exceptions=no | |
904 | fi | |
905 | rm -f conftest*]) | |
b17277cf UD |
906 | if test $libc_cv_ld_no_whole_archive = yes; then |
907 | no_exceptions=-fno-exceptions | |
908 | fi | |
909 | AC_SUBST(no_exceptions)dnl | |
b236e99d | 910 | |
d71b808a UD |
911 | if test "$base_machine" = alpha ; then |
912 | AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl | |
913 | cat > conftest.c <<\EOF | |
914 | foo () { } | |
915 | EOF | |
916 | dnl | |
9756dfe1 | 917 | if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]); |
d71b808a UD |
918 | then |
919 | libc_cv_gcc_alpha_ng_prefix=yes | |
920 | else | |
921 | libc_cv_gcc_alpha_ng_prefix=no | |
922 | fi | |
923 | rm -f conftest* ]) | |
924 | if test $libc_cv_gcc_alpha_ng_prefix = yes ; then | |
925 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$") | |
926 | else | |
927 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "") | |
928 | fi | |
929 | fi | |
930 | ||
66000494 UD |
931 | if test "$host_cpu" = powerpc ; then |
932 | # Check for a bug present in at least versions 2.8.x of GCC | |
933 | # and versions 1.0.x of EGCS. | |
934 | AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl | |
935 | AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],, | |
936 | libc_cv_c_asmcr0_bug='no', | |
937 | libc_cv_c_asmcr0_bug='yes')]) | |
938 | if test "$libc_cv_c_asmcr0_bug" != 'no'; then | |
939 | AC_DEFINE(BROKEN_PPC_ASM_CR0) | |
940 | fi | |
941 | fi | |
942 | ||
650425ce UD |
943 | AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info, |
944 | [cat > conftest.c <<EOF | |
945 | #line __oline__ "configure" | |
946 | static char __EH_FRAME_BEGIN__[]; | |
947 | _start () | |
948 | { | |
9756dfe1 | 949 | #ifdef CHECK__register_frame |
650425ce UD |
950 | __register_frame (__EH_FRAME_BEGIN__); |
951 | __deregister_frame (__EH_FRAME_BEGIN__); | |
9756dfe1 UD |
952 | #endif |
953 | #ifdef CHECK__register_frame_info | |
954 | __register_frame_info (__EH_FRAME_BEGIN__); | |
955 | __deregister_frame_info (__EH_FRAME_BEGIN__); | |
956 | #endif | |
650425ce UD |
957 | } |
958 | int __eh_pc; | |
959 | __throw () {} | |
960 | /* FIXME: this is fragile. */ | |
961 | malloc () {} | |
962 | strcmp () {} | |
963 | strlen () {} | |
964 | memcpy () {} | |
965 | memset () {} | |
966 | free () {} | |
967 | abort () {} | |
dfd2257a | 968 | __bzero () {} |
650425ce UD |
969 | EOF |
970 | dnl No \ in command here because it ends up inside ''. | |
9756dfe1 | 971 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info |
650425ce UD |
972 | -nostdlib -nostartfiles |
973 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
9756dfe1 | 974 | libc_cv_gcc_dwarf2_unwind_info=static |
650425ce UD |
975 | else |
976 | libc_cv_gcc_dwarf2_unwind_info=no | |
977 | fi | |
9756dfe1 UD |
978 | if test $libc_cv_gcc_dwarf2_unwind_info = no; then |
979 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame | |
980 | -nostdlib -nostartfiles | |
981 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
982 | libc_cv_gcc_dwarf2_unwind_info=yes | |
983 | else | |
984 | libc_cv_gcc_dwarf2_unwind_info=no | |
985 | fi | |
986 | fi | |
650425ce | 987 | rm -f conftest*]) |
9756dfe1 UD |
988 | case $libc_cv_gcc_dwarf2_unwind_info in |
989 | yes) | |
650425ce | 990 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) |
9756dfe1 UD |
991 | ;; |
992 | static) | |
993 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) | |
994 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC) | |
995 | ;; | |
996 | esac | |
650425ce | 997 | |
c224a18a RM |
998 | ### End of automated tests. |
999 | ### Now run sysdeps configure fragments. | |
1000 | ||
28f540f4 RM |
1001 | # sysdeps configure fragments may set these with files to be linked below. |
1002 | libc_link_dests= | |
1003 | libc_link_sources= | |
1004 | ||
cb343854 UD |
1005 | # They also can set these variables. |
1006 | ldd_rewrite_script=no | |
1007 | ||
28f540f4 RM |
1008 | # Iterate over all the sysdep directories we will use, running their |
1009 | # configure fragments, and looking for a uname implementation. | |
1010 | uname= | |
1011 | for dir in $sysnames; do | |
57ba7bb4 UD |
1012 | case $dir in |
1013 | /*) dest=$dir ;; | |
1014 | *) dest=$srcdir/$dir ;; | |
1015 | esac | |
1016 | if test -r $dest/configure; then | |
1017 | AC_MSG_RESULT(running configure fragment for $dest) | |
1018 | . $dest/configure | |
28f540f4 | 1019 | fi |
4ca84cff | 1020 | [ |
28f540f4 | 1021 | if test -z "$uname"; then |
e7f1f046 UD |
1022 | if test -r $dest/uname.c || |
1023 | test -r $dest/uname.S || | |
1024 | { test -r $dest/syscalls.list && | |
1025 | grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then | |
b86199fb | 1026 | uname=$dir |
4ca84cff | 1027 | fi |
28f540f4 | 1028 | fi |
4ca84cff | 1029 | ]dnl |
28f540f4 RM |
1030 | done |
1031 | ||
1032 | AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`) | |
1033 | ||
1034 | # If we will use the generic uname implementation, we must figure out what | |
1035 | # it will say by examining the system, and write the results in config-name.h. | |
e7f1f046 | 1036 | if test "$uname" = "sysdeps/generic"; then |
28f540f4 RM |
1037 | |
1038 | changequote(,)dnl | |
1039 | uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'` | |
1040 | changequote([,])dnl | |
1041 | if test $uname_sysname != $config_os; then | |
1042 | config_release=`echo $config_os | sed s/$uname_sysname//` | |
1043 | fi | |
1044 | dnl | |
1045 | AC_DEFUN(LIBC_KERNEL_ID, [dnl | |
1046 | if test -r /vmunix; then | |
1047 | kernel_id=`strings /vmunix | grep UNIX` | |
1048 | elif test -r /dynix; then | |
1049 | kernel_id=`strings /dynix | grep DYNIX` | |
1050 | else | |
1051 | kernel_id= | |
1052 | fi | |
1053 | ])dnl | |
1054 | ||
b8dc6a10 | 1055 | AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl |
28f540f4 RM |
1056 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
1057 | changequote(,)dnl | |
1058 | kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'` | |
1059 | changequote([,])dnl | |
1060 | if test x`echo "$config_release" | sed "s/^$kernel_release//"` \ | |
1061 | != x$config_release; then | |
1062 | # The configuration release is a substring of the kernel release. | |
1063 | libc_cv_uname_release=$kernel_release | |
1064 | elif test x$config_release != x; then | |
1065 | libc_cv_uname_release=$config_release | |
1066 | elif test x$kernel_release != x; then | |
1067 | libc_cv_uname_release=$kernel_release | |
1068 | else | |
1069 | libc_cv_uname_release=unknown | |
1070 | fi]) | |
28f540f4 RM |
1071 | uname_release="$libc_cv_uname_release" |
1072 | ||
b8dc6a10 | 1073 | AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl |
28f540f4 RM |
1074 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
1075 | changequote(,)dnl | |
1076 | kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'` | |
1077 | changequote([,])dnl | |
1078 | if test -n "$kernel_version"; then | |
1079 | libc_cv_uname_version="$kernel_version" | |
1080 | else | |
1081 | libc_cv_uname_version=unknown | |
1082 | fi]) | |
28f540f4 RM |
1083 | uname_version="$libc_cv_uname_version" |
1084 | ||
1085 | AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl | |
1086 | config_uname=config-name.h:config-name.in | |
1087 | else | |
1088 | # For non-generic uname, we don't need to create config-name.h at all. | |
1089 | config_uname= | |
1090 | fi | |
1091 | ||
96aa2d94 RM |
1092 | AC_MSG_CHECKING(stdio selection) |
1093 | AC_SUBST(stdio) | |
1094 | case $stdio in | |
1095 | libio) AC_DEFINE(USE_IN_LIBIO) ;; | |
1096 | default) stdio=stdio ;; | |
1097 | esac | |
1098 | AC_MSG_RESULT($stdio) | |
1099 | ||
26b4d766 UD |
1100 | AC_MSG_CHECKING(ldap selection) |
1101 | AC_SUBST(LDAP) | |
1102 | case $add_ons in | |
1103 | *ldap*) | |
1104 | ldap=yes | |
1105 | LDAP=ldap ;; | |
1106 | *) ldap=no | |
1107 | LDAP= ;; | |
1108 | esac | |
1109 | AC_MSG_RESULT($ldap) | |
1110 | ||
84384f5b UD |
1111 | AC_SUBST(libc_cv_slibdir) |
1112 | AC_SUBST(libc_cv_sysconfdir) | |
1ef32c3d UD |
1113 | AC_SUBST(libc_cv_rootsbindir) |
1114 | ||
1115 | AC_SUBST(has_ldconfig) | |
cb343854 | 1116 | AC_SUBST(ldd_rewrite_script) |
84384f5b | 1117 | |
c224a18a | 1118 | AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) |
28f540f4 RM |
1119 | if test $gnu_ld = yes; then |
1120 | AC_DEFINE(HAVE_GNU_LD) | |
1121 | fi | |
1122 | if test $gnu_as = yes; then | |
1123 | AC_DEFINE(HAVE_GNU_AS) | |
1124 | fi | |
1125 | if test $elf = yes; then | |
1126 | AC_DEFINE(HAVE_ELF) | |
1127 | fi | |
28f540f4 | 1128 | |
650425ce | 1129 | AC_SUBST(static) |
ff3d7ed3 RM |
1130 | AC_SUBST(shared) |
1131 | if test $shared = default; then | |
1132 | if test $gnu_ld = yes; then | |
1133 | shared=$elf | |
f65fd747 UD |
1134 | else |
1135 | # For now we do not assume shared libs are available. In future more | |
1136 | # tests might become available. | |
1137 | shared=no | |
ff3d7ed3 RM |
1138 | fi |
1139 | fi | |
cc3fa755 UD |
1140 | |
1141 | AC_CACHE_CHECK([whether -fPIC is default], pic_default, | |
1142 | [pic_default=yes | |
1143 | cat > conftest.c <<EOF | |
9756dfe1 | 1144 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
1145 | # error PIC is default. |
1146 | #endif | |
1147 | EOF | |
1148 | if eval "${CC-cc} -S conftest.c 2>&AC_FD_CC 1>&AC_FD_CC"; then | |
1149 | pic_default=no | |
1150 | fi | |
1151 | rm -f conftest.*]) | |
1152 | AC_SUBST(pic_default) | |
1153 | ||
ff3d7ed3 RM |
1154 | AC_SUBST(profile) |
1155 | AC_SUBST(omitfp) | |
5a97622d | 1156 | AC_SUBST(bounded) |
5107cf1d | 1157 | AC_SUBST(static_nss) |
5ae3e846 | 1158 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 1159 | |
edf5b2d7 UD |
1160 | AC_SUBST(DEFINES) |
1161 | ||
28f540f4 RM |
1162 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
1163 | config_makefile= | |
1164 | else | |
1165 | config_makefile=Makefile | |
1166 | fi | |
1167 | ||
ee74a442 UD |
1168 | VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h` |
1169 | RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h` | |
df4ef2ab | 1170 | AC_SUBST(VERSION) |
ee74a442 | 1171 | AC_SUBST(RELEASE) |
df4ef2ab | 1172 | |
737547be UD |
1173 | AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, [ |
1174 | case $CONFIG_FILES in *config.make*) | |
1175 | echo "$config_vars" >> config.make;; | |
1176 | esac | |
1177 | test -d bits || mkdir bits], [config_vars='$config_vars']) |