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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 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) |
28f540f4 | 45 | |
deab9dea RM |
46 | AC_ARG_ENABLE(libio, dnl |
47 | [ --enable-libio build in GNU libio instead of GNU stdio], | |
f4482045 RM |
48 | [if test $enableval = yes; then |
49 | stdio=libio | |
50 | else | |
51 | stdio=stdio | |
52 | fi], | |
53 | stdio=default) | |
deab9dea | 54 | |
a18f587d UD |
55 | AC_ARG_ENABLE(sanity-checks, dnl |
56 | [ --disable-sanity-checks really do not use threads (should not be used | |
57 | except in special situations) [default=yes]], | |
58 | enable_sanity=$enableval, enable_sanity=yes) | |
59 | ||
650425ce UD |
60 | dnl Arguments to enable or disable building the static, shared, profiled, |
61 | dnl and -fomit-frame-pointer libraries. | |
62 | AC_ARG_ENABLE(static, dnl | |
63 | [ --enable-static build static library [default=yes]], | |
64 | static=$enableval, static=yes) | |
ff3d7ed3 RM |
65 | AC_ARG_ENABLE(shared, dnl |
66 | [ --enable-shared build shared library [default=yes if GNU ld & ELF]], | |
6b3a2224 | 67 | shared=$enableval, shared=default) |
ff3d7ed3 RM |
68 | AC_ARG_ENABLE(profile, dnl |
69 | [ --enable-profile build profiled library [default=yes]], | |
6b3a2224 | 70 | profile=$enableval, profile=yes) |
ff3d7ed3 | 71 | AC_ARG_ENABLE(omitfp, dnl |
6b3a2224 RM |
72 | [ --enable-omitfp build undebuggable optimized library [default=no]], |
73 | omitfp=$enableval, omitfp=no) | |
5a97622d UD |
74 | AC_ARG_ENABLE(bounded, dnl |
75 | [ --enable-bounded build with runtime bounds checking [default=no]], | |
76 | bounded=$enableval, bounded=no) | |
650425ce UD |
77 | AC_ARG_ENABLE(versioning, dnl |
78 | [ --disable-versioning do not include versioning information in the | |
79 | library objects [default=yes if supported]], | |
80 | enable_versioning=$enableval, enable_versioning=yes) | |
6b3a2224 RM |
81 | |
82 | dnl Generic infrastructure for drop-in additions to libc. | |
83 | AC_ARG_ENABLE(add-ons, dnl | |
d71b808a UD |
84 | [ --enable-add-ons[=DIR1,DIR2]... configure and build add-ons in DIR1,DIR2,... |
85 | search for add-ons if no parameter given], | |
61952351 | 86 | [case "$enableval" in |
b9b49b44 UD |
87 | yes) if test "$srcdir" = "."; then |
88 | add_ons=`echo */configure | sed -e 's!/configure!!g'` | |
89 | else | |
90 | add_ons=`echo $srcdir/*/configure | \ | |
91 | sed -e "s!^$srcdir/!!g" -e 's!/configure!!g'` | |
92 | fi;; | |
61952351 UD |
93 | *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;; |
94 | esac], | |
95 | [add_ons=]) | |
96 | ||
6b3a2224 | 97 | AC_CONFIG_SUBDIRS($add_ons) |
57ba7bb4 | 98 | add_ons_pfx= |
da74e902 | 99 | if test x"$add_ons" != x; then |
57ba7bb4 | 100 | for f in $add_ons; do |
af6f3906 UD |
101 | # Test whether such a subdir really exists. |
102 | if test -d $srcdir/$f; then | |
103 | add_ons_pfx="$add_ons_pfx $f/" | |
104 | else | |
105 | AC_MSG_ERROR(add-on directory \"$f\" does not exist) | |
106 | fi | |
57ba7bb4 UD |
107 | done |
108 | fi | |
ff3d7ed3 | 109 | |
5107cf1d UD |
110 | dnl On some platforms we cannot use dynamic loading. We must provide |
111 | dnl static NSS modules. | |
112 | AC_ARG_ENABLE(static-nss, dnl | |
113 | [ --enable-static-nss build static NSS modules [default=no]], | |
114 | static_nss=$enableval, static_nss=no) | |
115 | if test x"$static_nss" = xyes; then | |
116 | AC_DEFINE(DO_STATIC_NSS) | |
117 | fi | |
118 | ||
28f540f4 | 119 | AC_CANONICAL_HOST |
8a523922 UD |
120 | |
121 | # The way shlib-versions is used to generate soversions.mk uses a | |
122 | # fairly simplistic model for name recognition that can't distinguish | |
123 | # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os | |
124 | # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can | |
125 | # tell. This doesn't get used much beyond that, so it's fairly safe. | |
126 | case "$host_os" in | |
127 | linux*) | |
128 | ;; | |
129 | gnu*) | |
130 | host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'` | |
131 | ;; | |
132 | esac | |
133 | ||
61eb22d3 UD |
134 | ### |
135 | ### I put this here to prevent those annoying emails from people who cannot | |
136 | ### read and try to compile glibc on unsupported platforms. --drepper | |
137 | ### | |
650425ce UD |
138 | ### By using the undocumented --enable-hacker-mode option for configure |
139 | ### one can skip this test to make the configuration not fail for unsupported | |
140 | ### platforms. | |
141 | ### | |
142 | if test -z "$enable_hacker_mode"; then | |
143 | case "$host_os" in | |
144 | linux* | gnu*) | |
145 | ;; | |
146 | *) | |
147 | echo "*** The GNU C library is currently not available for this platform." | |
148 | echo "*** So far nobody cared to port it and if there is no volunteer it" | |
149 | echo "*** might never happen. So, if you have interest to see glibc on" | |
150 | echo "*** this platform visit" | |
b9b49b44 | 151 | echo "*** http://www.gnu.org/software/libc/porting.html" |
650425ce UD |
152 | echo "*** and join the group of porters" |
153 | exit 1 | |
154 | ;; | |
155 | esac | |
156 | fi | |
61eb22d3 | 157 | |
28f540f4 RM |
158 | # We keep the original values in `$config_*' and never modify them, so we |
159 | # can write them unchanged into config.make. Everything else uses | |
160 | # $machine, $vendor, and $os, and changes them whenever convenient. | |
161 | config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os | |
162 | ||
a2fe9c76 RM |
163 | # Some configurations imply other options. |
164 | case "$host_os" in | |
165 | gnu* | linux* | bsd4.4* | netbsd* | freebsd*) | |
166 | # These systems always use GNU tools. | |
c8cf0b14 | 167 | gnu_ld=yes gnu_as=yes ;; |
a2fe9c76 RM |
168 | esac |
169 | case "$host_os" in | |
7799b7b3 UD |
170 | # i586-linuxaout is mangled into i586-pc-linux-gnuaout |
171 | linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*) | |
3776d592 | 172 | ;; |
a2fe9c76 | 173 | gnu* | linux* | sysv4* | solaris2*) |
3776d592 RM |
174 | # These systems (almost) always use the ELF format. |
175 | elf=yes | |
84724245 | 176 | ;; |
a2fe9c76 RM |
177 | esac |
178 | ||
28f540f4 RM |
179 | machine=$config_machine |
180 | vendor=$config_vendor | |
181 | os=$config_os | |
182 | ||
183 | dnl We need to use [ and ] for other purposes for a while now. | |
184 | changequote(,)dnl | |
185 | # Expand the configuration machine name into a subdirectory by architecture | |
186 | # type and particular chip. | |
187 | case "$machine" in | |
f0523145 RM |
188 | a29k | am29000) base_machine=a29k machine=a29k ;; |
189 | alpha*) base_machine=alpha machine=alpha/$machine ;; | |
7799b7b3 | 190 | arm*) base_machine=arm machine=arm/$machine ;; |
60c96635 UD |
191 | c3[012]) base_machine=cx0 machine=cx0/c30 ;; |
192 | c4[04]) base_machine=cx0 machine=cx0/c40 ;; | |
f0523145 | 193 | hppa*) base_machine=hppa machine=hppa/$machine ;; |
a8922de8 | 194 | i[3456]86) base_machine=i386 machine=i386/$machine ;; |
f0523145 RM |
195 | m680?0) base_machine=m68k machine=m68k/$machine ;; |
196 | m68k) base_machine=m68k machine=m68k/m68020 ;; | |
197 | m88???) base_machine=m88k machine=m88k/$machine ;; | |
198 | m88k) base_machine=m88k machine=m88k/m88100 ;; | |
f0523145 | 199 | mips64*) base_machine=mips64 machine=mips/mips64/$machine ;; |
f21acc89 | 200 | mips*) base_machine=mips machine=mips/$machine ;; |
ca34d7a7 UD |
201 | sparc | sparcv[67]) |
202 | base_machine=sparc machine=sparc/sparc32 ;; | |
203 | sparcv8 | supersparc | hypersparc) | |
204 | base_machine=sparc machine=sparc/sparc32/sparcv8 ;; | |
205 | sparc64 | ultrasparc) | |
206 | base_machine=sparc machine=sparc/sparc64 ;; | |
28f540f4 | 207 | esac |
f0523145 RM |
208 | changequote([,])dnl |
209 | AC_SUBST(base_machine) | |
28f540f4 | 210 | |
dfd2257a UD |
211 | if test "$base_machine" = "i386"; then |
212 | AC_DEFINE(USE_REGPARMS) | |
213 | fi | |
214 | ||
f0523145 | 215 | # Compute the list of sysdep directories for this configuration. |
f332db02 | 216 | # This can take a while to compute. |
f0523145 | 217 | sysdep_dir=$srcdir/sysdeps |
f332db02 | 218 | AC_MSG_CHECKING(sysdep dirs) |
f0523145 RM |
219 | dnl We need to use [ and ] for other purposes for a while now. |
220 | changequote(,)dnl | |
28f540f4 RM |
221 | # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1. |
222 | os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`" | |
223 | ||
224 | case "$os" in | |
225 | gnu*) | |
226 | base_os=mach/hurd ;; | |
883bc19b | 227 | netbsd* | 386bsd* | freebsd* | bsdi*) |
28f540f4 | 228 | base_os=unix/bsd/bsd4.4 ;; |
222c4e71 | 229 | osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*) |
28f540f4 | 230 | base_os=unix/bsd ;; |
d586354e | 231 | sysv* | isc* | esix* | sco* | minix* | irix4* | linux*) |
28f540f4 | 232 | base_os=unix/sysv ;; |
d586354e | 233 | solaris[2-9]*) |
28f540f4 RM |
234 | base_os=unix/sysv/sysv4 ;; |
235 | none) | |
236 | base_os=standalone ;; | |
237 | *) | |
238 | base_os='' ;; | |
239 | esac | |
240 | ||
241 | # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos. | |
242 | tail=$os | |
243 | ostry=$os | |
244 | while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do | |
245 | ostry="$ostry /$o" | |
246 | tail=$o | |
75914335 | 247 | done |
28f540f4 RM |
248 | o=`echo $tail | sed 's/[0-9]*$//'` |
249 | if test $o != $tail; then | |
250 | ostry="$ostry /$o" | |
251 | fi | |
ec4b0518 UD |
252 | # For linux-gnu, try linux-gnu, then linux. |
253 | o=`echo $tail | sed 's/-.*$//'` | |
254 | if test $o != $tail; then | |
255 | ostry="$ostry /$o" | |
256 | fi | |
28f540f4 RM |
257 | |
258 | # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix. | |
259 | base= | |
260 | tail=$base_os | |
261 | while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do | |
262 | set $b | |
263 | base="$base /$1" | |
264 | tail="$2" | |
265 | done | |
266 | ||
267 | # For sparc/sparc9, try sparc/sparc9 and then sparc. | |
268 | mach= | |
269 | tail=$machine | |
270 | while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do | |
271 | set $m | |
10ceac89 RM |
272 | # Prepend the machine's FPU directory unless --without-fp. |
273 | if test "$with_fp" = yes; then | |
274 | mach="$mach /$1/fpu" | |
82d00cab | 275 | fi |
28f540f4 RM |
276 | mach="$mach /$1" |
277 | tail="$2" | |
278 | done | |
279 | ||
280 | dnl We are done with glob and regexp uses of [ and ]; return to autoconf. | |
281 | changequote([,])dnl | |
282 | ||
283 | # Find what sysdep directories exist. | |
284 | sysnames= | |
57ba7bb4 UD |
285 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" |
286 | for d in $add_ons_pfx ''; do | |
287 | for b in $base ''; do | |
288 | for m0 in $mach ''; do | |
289 | for v in /$vendor ''; do | |
290 | for o in /$ostry ''; do | |
291 | for m in $mach ''; do | |
292 | if test "$m0$b$v$o$m"; then | |
293 | try="${d}sysdeps$m0$b$v$o$m" | |
294 | test -n "$enable_debug_configure" && | |
295 | echo "$0 [DEBUG]: try $try" >&2 | |
296 | case $try in | |
297 | /*) dest=$try ;; | |
298 | *) dest=$srcdir/$try ;; | |
299 | esac | |
300 | if test -d $dest; then | |
301 | sysnames="$sysnames $try" | |
302 | { test -n "$o" || test -n "$b"; } && os_used=t | |
303 | { test -n "$m" || test -n "$m0"; } && machine_used=t | |
304 | fi | |
305 | fi | |
306 | done | |
28f540f4 RM |
307 | done |
308 | done | |
309 | done | |
310 | done | |
311 | done | |
57ba7bb4 | 312 | IFS="$ac_save_ifs" |
28f540f4 RM |
313 | |
314 | if test -z "$os_used" && test "$os" != none; then | |
315 | AC_MSG_ERROR(Operating system $os is not supported.) | |
316 | fi | |
317 | if test -z "$machine_used" && test "$machine" != none; then | |
318 | AC_MSG_ERROR(The $machine is not supported.) | |
319 | fi | |
320 | ||
321 | # We have now validated the configuration. | |
322 | ||
335aa320 | 323 | |
10ceac89 RM |
324 | # If using ELF, look for an `elf' subdirectory of each machine directory. |
325 | # We prepend these rather than inserting them whereever the machine appears | |
326 | # because things specified by the machine's ELF ABI should override | |
327 | # OS-specific things, and should always be the same for any OS on the | |
328 | # machine (otherwise what's the point of an ABI?). | |
329 | if test "$elf" = yes; then | |
330 | elf_dirs= | |
57ba7bb4 UD |
331 | for d in $add_ons_pfx ''; do |
332 | case $d in | |
333 | /*) xsrcdir= ;; | |
334 | *) xsrcdir=$srcdir/ ;; | |
335 | esac | |
336 | for m in $mach; do | |
337 | if test -d $xsrcdir${d}sysdeps$m/elf; then | |
c2bb8cab | 338 | elf_dirs="$elf_dirs ${d}sysdeps$m/elf" |
57ba7bb4 UD |
339 | fi |
340 | done | |
28f540f4 | 341 | done |
57ba7bb4 | 342 | sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames" |
28f540f4 RM |
343 | fi |
344 | ||
335aa320 | 345 | |
28f540f4 RM |
346 | # Expand the list of system names into a full list of directories |
347 | # from each element's parent name and Implies file (if present). | |
348 | set $sysnames | |
e50ec9f9 | 349 | names= |
28f540f4 RM |
350 | while test $# -gt 0; do |
351 | name=$1 | |
352 | shift | |
353 | ||
e50ec9f9 | 354 | case " $names " in *" $name "*) |
f332db02 RM |
355 | # Already in the list. |
356 | continue | |
e50ec9f9 | 357 | esac |
f332db02 RM |
358 | |
359 | # Report each name as we discover it, so there is no long pause in output. | |
360 | echo $ac_n "$name $ac_c" >&AC_FD_MSG | |
361 | ||
57ba7bb4 UD |
362 | name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'` |
363 | ||
364 | case $name in | |
365 | /*) xsrcdir= ;; | |
366 | *) xsrcdir=$srcdir/ ;; | |
367 | esac | |
368 | test -n "$enable_debug_configure" && | |
369 | echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2 | |
370 | ||
371 | if test -f $xsrcdir$name/Implies; then | |
28f540f4 | 372 | # Collect more names from the `Implies' file (removing comments). |
57ba7bb4 UD |
373 | implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`" |
374 | implied= | |
375 | for x in $implied_candidate; do | |
376 | if test -d $xsrcdir$name_base/$x; then | |
377 | implied="$implied $name_base/$x"; | |
378 | else | |
379 | AC_MSG_WARN($name/Implies specifies nonexistent $x) | |
380 | fi | |
28f540f4 RM |
381 | done |
382 | else | |
383 | implied= | |
384 | fi | |
385 | ||
386 | # Add NAME to the list of names. | |
387 | names="$names $name" | |
388 | ||
389 | # Find the parent of NAME, using the empty string if it has none. | |
390 | changequote(,)dnl | |
57ba7bb4 | 391 | parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`" |
28f540f4 RM |
392 | changequote([,])dnl |
393 | ||
394 | # Add the names implied by NAME, and NAME's parent (if it has one), to | |
395 | # the list of names to be processed (the argument list). We prepend the | |
396 | # implied names to the list and append the parent. We want implied | |
397 | # directories to come before further directories inferred from the | |
398 | # configuration components; this ensures that for sysv4, unix/common | |
399 | # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*) | |
400 | # after sysv4). | |
401 | sysnames="`echo $implied $* $parent`" | |
402 | test -n "$sysnames" && set $sysnames | |
403 | done | |
404 | ||
405 | # Add the default directories. | |
f2ea0f5b | 406 | sysnames="$names sysdeps/generic" |
f332db02 RM |
407 | AC_SUBST(sysnames) |
408 | # The other names were emitted during the scan. | |
f2ea0f5b | 409 | AC_MSG_RESULT(sysdeps/generic) |
28f540f4 | 410 | |
f332db02 RM |
411 | |
412 | ### Locate tools. | |
28f540f4 | 413 | |
28f540f4 | 414 | AC_PROG_INSTALL |
26761c28 | 415 | if test "$INSTALL" = "${srcdir}/install-sh -c"; then |
28f540f4 | 416 | # The makefiles need to use a different form to find it in $srcdir. |
f41c8091 | 417 | INSTALL='\$(..)./install-sh -c' |
28f540f4 | 418 | fi |
0e3426bb | 419 | AC_PROG_LN_S |
c17097f1 | 420 | AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :) |
04be94a8 UD |
421 | AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo) |
422 | if test "$MAKEINFO"; then | |
423 | changequote(,)dnl Need [] for regexps. | |
424 | if $MAKEINFO --version | grep 'texinfo 3\.[1-9][1-9]' >/dev/null 2>&1 | |
425 | changequote([,])dnl | |
426 | then : # Makeinfo 3.11 or greater, works. | |
427 | else | |
428 | AC_MSG_WARN([ | |
429 | *** makeinfo is too old (need version 3.11 or better). | |
430 | *** You should install the needed version and re-configure since otherwise | |
431 | *** you won't get the info pages installed.]) | |
432 | MAKEINFO= | |
433 | fi | |
434 | fi | |
28f540f4 | 435 | |
ebbad4cc | 436 | AC_PROG_CC_LOCAL |
22d57dd3 | 437 | AC_CANONICAL_BUILD |
072ebcef | 438 | if test $host != $build; then |
22d57dd3 | 439 | AC_CHECK_PROGS(BUILD_CC, gcc cc) |
072ebcef | 440 | fi |
779ae82e | 441 | AC_SUBST(cross_compiling) |
7c713e28 | 442 | AC_PROG_CPP |
650425ce | 443 | LIBC_PROG_BINUTILS |
ff3d7ed3 RM |
444 | AC_CHECK_TOOL(AR, ar) |
445 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
28f540f4 | 446 | |
84384f5b | 447 | AC_PATH_PROG(BASH, bash, no) |
a18f587d | 448 | if test "$BASH" != no && |
f43ce637 | 449 | $BASH -c 'test "$BASH_VERSINFO" \ |
6973fc01 | 450 | && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then |
84384f5b UD |
451 | libc_cv_have_bash2=yes |
452 | else | |
453 | libc_cv_have_bash2=no | |
454 | fi | |
455 | AC_SUBST(libc_cv_have_bash2) | |
456 | ||
5290baf0 UD |
457 | dnl We need a ksh compatible shell for tzselect. |
458 | if test "$BASH" = no; then | |
459 | AC_PATH_PROG(KSH, ksh, no) | |
460 | if test "$KSH" = no; then | |
461 | libc_cv_have_ksh=no | |
462 | else | |
463 | libc_cv_have_ksh=yes | |
464 | fi | |
465 | else | |
466 | KSH="$BASH" | |
467 | AC_SUBST(KSH) | |
468 | libc_cv_have_ksh=yes | |
469 | fi | |
470 | AC_SUBST(libc_cv_have_ksh) | |
471 | ||
a2b08ee5 UD |
472 | AC_PATH_PROGS(PERL, perl, no) |
473 | AC_SUBST(PERL) | |
474 | ||
b8dc6a10 | 475 | AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl |
28f540f4 RM |
476 | echo '#include <stddef.h> |
477 | FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c | |
478 | if eval "$ac_cpp conftest.c 2>/dev/null" \ | |
479 | | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then | |
480 | libc_cv_signed_size_t=no | |
481 | else | |
482 | libc_cv_signed_size_t=yes | |
483 | fi | |
484 | rm -f conftest*]) | |
28f540f4 RM |
485 | if test $libc_cv_signed_size_t = yes; then |
486 | dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings. | |
487 | cat >> confdefs.h <<\EOF | |
488 | #undef __SIZE_TYPE__ | |
489 | #define __SIZE_TYPE__ unsigned | |
490 | EOF | |
491 | fi | |
492 | ||
b8dc6a10 | 493 | AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl |
28f540f4 RM |
494 | AC_TRY_COMPILE(dnl |
495 | [#define __need_size_t | |
496 | #define __need_wchar_t | |
497 | #include <stddef.h> | |
498 | #define __need_NULL | |
499 | #include <stddef.h>], [size_t size; wchar_t wchar; | |
500 | #ifdef offsetof | |
501 | #error stddef.h ignored __need_* | |
502 | #endif | |
503 | if (&size == NULL || &wchar == NULL) abort ();], | |
504 | libc_cv_friendly_stddef=yes, | |
505 | libc_cv_friendly_stddef=no)]) | |
28f540f4 RM |
506 | if test $libc_cv_friendly_stddef = yes; then |
507 | config_vars="$config_vars | |
508 | override stddef.h = # The installed <stddef.h> seems to be libc-friendly." | |
509 | fi | |
510 | ||
b8dc6a10 RM |
511 | AC_CACHE_CHECK(whether we need to use -P to assemble .S files, |
512 | libc_cv_need_minus_P, [dnl | |
28f540f4 RM |
513 | cat > conftest.S <<EOF |
514 | #include "confdefs.h" | |
515 | /* Nothing whatsoever. */ | |
516 | EOF | |
517 | if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then | |
518 | libc_cv_need_minus_P=no | |
519 | else | |
520 | libc_cv_need_minus_P=yes | |
521 | fi | |
522 | rm -f conftest*]) | |
28f540f4 RM |
523 | if test $libc_cv_need_minus_P = yes; then |
524 | config_vars="$config_vars | |
525 | asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." | |
526 | fi | |
527 | ||
1618c590 UD |
528 | # gcc 2.7.x has a bug where if -pipe is set, the assembler will always |
529 | # be told to read stdin. This causes the compiler to hang when fed an | |
530 | # .s file. | |
531 | if test $ac_cv_prog_gcc = yes; then | |
532 | case `${CC-cc} -v 2>&1` in | |
533 | *2.7*) | |
534 | # We must check this even if -pipe is not given here, because the user | |
535 | # might do `make CFLAGS=-pipe'. | |
536 | AC_CACHE_CHECK(for gcc 2.7.x -pipe bug, libc_cv_gcc_pipe_bug, [dnl | |
86187531 UD |
537 | cp /dev/null conftest.s |
538 | cat >conftest1.s <<EOF | |
539 | .nosuchdirective | |
1618c590 | 540 | EOF |
86187531 | 541 | if ${CC-cc} -pipe -c conftest.s <conftest1.s 2>/dev/null; then |
1618c590 UD |
542 | libc_cv_gcc_pipe_bug=no |
543 | else | |
544 | libc_cv_gcc_pipe_bug=yes | |
545 | fi | |
546 | rm -f conftest*]) | |
547 | if test $libc_cv_gcc_pipe_bug = yes; then | |
548 | makeCC="${CC-cc} -B\$(common-objpfx)" | |
549 | makeCFLAGS=$CFLAGS | |
550 | CFLAGS=`echo $CFLAGS |sed 's/-pipe//'` | |
551 | fi;; | |
552 | *) libc_cv_gcc_pipe_bug=no;; | |
553 | esac | |
554 | else | |
555 | libc_cv_gcc_pipe_bug=no | |
556 | fi | |
557 | ||
b8dc6a10 RM |
558 | AC_CACHE_CHECK(for assembler global-symbol directive, |
559 | libc_cv_asm_global_directive, [dnl | |
9a70fcab UD |
560 | libc_cv_asm_global_directive=UNKNOWN |
561 | for ac_globl in .globl .global; do | |
562 | cat > conftest.s <<EOF | |
563 | .text | |
564 | ${ac_globl} foo | |
ae1025be | 565 | foo: |
9a70fcab UD |
566 | EOF |
567 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then | |
568 | libc_cv_asm_global_directive=${ac_globl} | |
569 | fi | |
570 | rm -f conftest* | |
571 | test $libc_cv_asm_global_directive != UNKNOWN && break | |
572 | done]) | |
9a70fcab UD |
573 | if test $libc_cv_asm_global_directive = UNKNOWN; then |
574 | AC_MSG_ERROR(cannot determine asm global directive) | |
575 | else | |
576 | AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive}) | |
577 | fi | |
578 | ||
b8dc6a10 | 579 | AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl |
9a70fcab | 580 | cat > conftest.s <<EOF |
e215c478 | 581 | .text |
ae1025be | 582 | foo: |
df2a0c93 | 583 | .set glibc_conftest_frobozz,foo |
9a70fcab | 584 | $libc_cv_asm_global_directive glibc_conftest_frobozz |
e215c478 | 585 | EOF |
df2a0c93 RM |
586 | # The alpha-dec-osf1 assembler gives only a warning for `.set' |
587 | # (but it doesn't work), so we must do a linking check to be sure. | |
588 | cat > conftest1.c <<\EOF | |
589 | extern int glibc_conftest_frobozz; | |
590 | main () { printf ("%d\n", glibc_conftest_frobozz); } | |
591 | EOF | |
592 | if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
cb2f05ed | 593 | -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then |
e215c478 RM |
594 | libc_cv_asm_set_directive=yes |
595 | else | |
596 | libc_cv_asm_set_directive=no | |
597 | fi | |
65b3cbcb | 598 | rm -f conftest*]) |
e215c478 RM |
599 | if test $libc_cv_asm_set_directive = yes; then |
600 | AC_DEFINE(HAVE_ASM_SET_DIRECTIVE) | |
601 | fi | |
602 | ||
377a515b UD |
603 | AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive, |
604 | [cat > conftest.s <<EOF | |
605 | .text | |
4cca6b86 | 606 | _sym: |
377a515b UD |
607 | .symver _sym,sym@VERS |
608 | EOF | |
609 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then | |
610 | libc_cv_asm_symver_directive=yes | |
611 | else | |
612 | libc_cv_asm_symver_directive=no | |
613 | fi | |
614 | rm -f conftest*]) | |
615 | AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl | |
616 | if test $libc_cv_asm_symver_directive = yes; then | |
617 | cat > conftest.s <<EOF | |
618 | .text | |
4cca6b86 | 619 | _sym: |
377a515b UD |
620 | .symver _sym,sym@VERS |
621 | EOF | |
622 | cat > conftest.map <<EOF | |
f43ce637 | 623 | VERS_1 { |
377a515b UD |
624 | global: sym; |
625 | }; | |
f43ce637 UD |
626 | |
627 | VERS_2 { | |
628 | global: sym; | |
629 | } VERS_1; | |
377a515b UD |
630 | EOF |
631 | if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then | |
5ae3e846 UD |
632 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o |
633 | -nostartfiles -nostdlib | |
ae1025be UD |
634 | -Wl,--version-script,conftest.map |
635 | 1>&AC_FD_CC]); | |
377a515b UD |
636 | then |
637 | libc_cv_ld_version_script_option=yes | |
638 | else | |
639 | libc_cv_ld_version_script_option=no | |
640 | fi | |
641 | else | |
642 | libc_cv_ld_version_script_option=no | |
643 | fi | |
644 | else | |
645 | libc_cv_ld_version_script_option=no | |
646 | fi | |
647 | rm -f conftest*]) | |
648 | if test $libc_cv_asm_symver_directive = yes && | |
650425ce UD |
649 | test $libc_cv_ld_version_script_option = yes && |
650 | test $enable_versioning = yes; then | |
377a515b UD |
651 | VERSIONING=yes |
652 | AC_DEFINE(DO_VERSIONING) | |
653 | else | |
654 | VERSIONING=no | |
655 | fi | |
656 | AC_SUBST(VERSIONING) | |
657 | ||
f43ce637 UD |
658 | if test $VERSIONING = no; then |
659 | echo "\ | |
f4017d20 | 660 | *** WARNING: You should not compile GNU libc without versioning. Not using |
f43ce637 UD |
661 | *** versioning will introduce incompatibilities so that old binaries |
662 | *** will not run anymore. | |
663 | *** For versioning you need recent binutils (binutils-2.8.1.0.17 or newer)." | |
664 | fi | |
fd26970f UD |
665 | if test $elf = yes; then |
666 | AC_CACHE_CHECK(for .previous assembler directive, | |
667 | libc_cv_asm_previous_directive, [dnl | |
668 | cat > conftest.s <<EOF | |
669 | .section foo_section | |
670 | .previous | |
671 | EOF | |
672 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then | |
673 | libc_cv_asm_previous_directive=yes | |
674 | else | |
675 | libc_cv_asm_previous_directive=no | |
676 | fi | |
677 | rm -f conftest*]) | |
678 | if test $libc_cv_asm_previous_directive = yes; then | |
679 | AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE) | |
680 | else | |
681 | AC_CACHE_CHECK(for .popsection assembler directive, | |
682 | libc_cv_asm_popsection_directive, [dnl | |
683 | cat > conftest.s <<EOF | |
684 | .pushsection foo_section | |
685 | .popsection | |
686 | EOF | |
687 | if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then | |
688 | libc_cv_asm_popsection_directive=yes | |
689 | else | |
690 | libc_cv_asm_popsection_directive=no | |
691 | fi | |
692 | rm -f conftest*]) | |
693 | if test $libc_cv_asm_popsection_directive = yes; then | |
694 | AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE) | |
695 | fi | |
696 | fi | |
697 | fi | |
698 | ||
b8dc6a10 RM |
699 | if test $elf != yes; then |
700 | AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini, | |
701 | [AC_TRY_COMPILE(, [asm (".section .init"); | |
84724245 RM |
702 | asm (".section .fini"); |
703 | asm (".text");], | |
b8dc6a10 RM |
704 | libc_cv_have_initfini=yes, |
705 | libc_cv_have_initfini=no)]) | |
706 | AC_SUBST(libc_cv_have_initfini)dnl | |
707 | if test $libc_cv_have_initfini = yes; then | |
708 | AC_DEFINE(HAVE_INITFINI) | |
709 | fi | |
710 | fi | |
e215c478 | 711 | |
9a0a462c UD |
712 | dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) |
713 | AC_DEFUN(AC_CHECK_ASM_UNDERSCORE, | |
714 | [cat > conftest.$ac_ext <<EOF | |
715 | dnl This sometimes fails to find confdefs.h, for some reason. | |
716 | dnl [#]line __oline__ "[$]0" | |
717 | [#]line __oline__ "configure" | |
718 | #include "confdefs.h" | |
719 | void underscore_test(void) { | |
720 | return; } | |
721 | EOF | |
722 | if AC_TRY_EVAL(ac_compile); then | |
723 | if grep _underscore_test conftest* >/dev/null; then | |
724 | ifelse([$1], , :, [rm -f conftest* | |
725 | $1]) | |
726 | else | |
727 | ifelse([$2], , , [rm -f conftest* | |
728 | $2]) | |
729 | fi | |
730 | else | |
731 | echo "configure: failed program was:" >&AC_FD_CC | |
732 | cat conftest.$ac_ext >&AC_FD_CC | |
733 | ifelse([$2], , , [rm -f conftest* | |
734 | $2]) | |
735 | fi | |
736 | rm -f conftest*]) | |
737 | ||
c224a18a RM |
738 | if test $elf = yes; then |
739 | libc_cv_asm_underscores=no | |
740 | else | |
9a0a462c UD |
741 | if test $ac_cv_prog_cc_works = yes; then |
742 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
743 | [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();], | |
744 | libc_cv_asm_underscores=yes, | |
745 | libc_cv_asm_underscores=no)]) | |
746 | else | |
747 | AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores, | |
748 | [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes, | |
749 | libc_cv_asm_underscores=no)]) | |
750 | fi | |
c224a18a RM |
751 | fi |
752 | if test $libc_cv_asm_underscores = no; then | |
753 | AC_DEFINE(NO_UNDERSCORES) | |
754 | fi | |
755 | ||
756 | if test $elf = yes; then | |
757 | libc_cv_weak_symbols=yes | |
758 | libc_cv_asm_weak_directive=yes | |
759 | libc_cv_asm_weakext_directive=no | |
760 | else | |
761 | AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive, | |
762 | [dnl | |
763 | cat > conftest.s <<EOF | |
764 | .text | |
765 | ${libc_cv_asm_global_directive} foo | |
ae1025be | 766 | foo: |
c224a18a RM |
767 | .weak foo |
768 | .weak bar; bar = foo | |
769 | EOF | |
770 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then | |
771 | libc_cv_asm_weak_directive=yes | |
772 | else | |
773 | libc_cv_asm_weak_directive=no | |
774 | fi | |
775 | rm -f conftest*]) | |
776 | ||
c8cf0b14 | 777 | if test $libc_cv_asm_weak_directive = no; then |
c224a18a RM |
778 | AC_CACHE_CHECK(for assembler .weakext directive, |
779 | libc_cv_asm_weakext_directive, | |
780 | [dnl | |
781 | cat > conftest.s <<EOF | |
782 | .text | |
783 | ${libc_cv_asm_global_directive} foo | |
ae1025be | 784 | foo: |
c224a18a | 785 | .weakext foo |
a1470b6f | 786 | .weakext foo, bar |
c224a18a RM |
787 | EOF |
788 | if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then | |
789 | libc_cv_asm_weakext_directive=yes | |
790 | else | |
791 | libc_cv_asm_weakext_directive=no | |
792 | fi | |
793 | rm -f conftest*]) | |
794 | ||
795 | fi # no .weak | |
796 | fi # not ELF | |
797 | ||
ffcf9634 | 798 | if test $libc_cv_asm_weak_directive = yes; then |
c224a18a | 799 | AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE) |
ffcf9634 | 800 | elif test $libc_cv_asm_weakext_directive = yes; then |
c224a18a RM |
801 | AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) |
802 | fi | |
803 | ||
a641835a RM |
804 | AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl |
805 | cat > conftest.c <<\EOF | |
5f0e6fc7 | 806 | _start () {} |
dcf0671d UD |
807 | int __eh_pc; |
808 | __throw () {} | |
a641835a | 809 | EOF |
dcea62dd RM |
810 | dnl No \ in command here because it ends up inside ''. |
811 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
812 | -nostdlib -nostartfiles -Wl,--no-whole-archive | |
ae1025be | 813 | -o conftest conftest.c 1>&AC_FD_CC]); then |
a641835a RM |
814 | libc_cv_ld_no_whole_archive=yes |
815 | else | |
816 | libc_cv_ld_no_whole_archive=no | |
817 | fi | |
818 | rm -f conftest*]) | |
819 | AC_SUBST(libc_cv_ld_no_whole_archive)dnl | |
820 | ||
b236e99d UD |
821 | AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl |
822 | cat > conftest.c <<\EOF | |
823 | _start () {} | |
824 | int __eh_pc; | |
825 | __throw () {} | |
826 | EOF | |
827 | dnl No \ in command here because it ends up inside ''. | |
828 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS | |
829 | -nostdlib -nostartfiles -fno-exceptions | |
ae1025be | 830 | -o conftest conftest.c 1>&AC_FD_CC]); then |
b236e99d UD |
831 | libc_cv_gcc_no_exceptions=yes |
832 | else | |
833 | libc_cv_gcc_no_exceptions=no | |
834 | fi | |
835 | rm -f conftest*]) | |
836 | AC_SUBST(libc_cv_gcc_no_exceptions)dnl | |
837 | ||
d71b808a UD |
838 | if test "$base_machine" = alpha ; then |
839 | AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl | |
840 | cat > conftest.c <<\EOF | |
841 | foo () { } | |
842 | EOF | |
843 | dnl | |
9756dfe1 | 844 | if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]); |
d71b808a UD |
845 | then |
846 | libc_cv_gcc_alpha_ng_prefix=yes | |
847 | else | |
848 | libc_cv_gcc_alpha_ng_prefix=no | |
849 | fi | |
850 | rm -f conftest* ]) | |
851 | if test $libc_cv_gcc_alpha_ng_prefix = yes ; then | |
852 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$") | |
853 | else | |
854 | AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "") | |
855 | fi | |
856 | fi | |
857 | ||
650425ce UD |
858 | AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info, |
859 | [cat > conftest.c <<EOF | |
860 | #line __oline__ "configure" | |
861 | static char __EH_FRAME_BEGIN__[]; | |
862 | _start () | |
863 | { | |
9756dfe1 | 864 | #ifdef CHECK__register_frame |
650425ce UD |
865 | __register_frame (__EH_FRAME_BEGIN__); |
866 | __deregister_frame (__EH_FRAME_BEGIN__); | |
9756dfe1 UD |
867 | #endif |
868 | #ifdef CHECK__register_frame_info | |
869 | __register_frame_info (__EH_FRAME_BEGIN__); | |
870 | __deregister_frame_info (__EH_FRAME_BEGIN__); | |
871 | #endif | |
650425ce UD |
872 | } |
873 | int __eh_pc; | |
874 | __throw () {} | |
875 | /* FIXME: this is fragile. */ | |
876 | malloc () {} | |
877 | strcmp () {} | |
878 | strlen () {} | |
879 | memcpy () {} | |
880 | memset () {} | |
881 | free () {} | |
882 | abort () {} | |
dfd2257a | 883 | __bzero () {} |
650425ce UD |
884 | EOF |
885 | dnl No \ in command here because it ends up inside ''. | |
9756dfe1 | 886 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info |
650425ce UD |
887 | -nostdlib -nostartfiles |
888 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
9756dfe1 | 889 | libc_cv_gcc_dwarf2_unwind_info=static |
650425ce UD |
890 | else |
891 | libc_cv_gcc_dwarf2_unwind_info=no | |
892 | fi | |
9756dfe1 UD |
893 | if test $libc_cv_gcc_dwarf2_unwind_info = no; then |
894 | if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame | |
895 | -nostdlib -nostartfiles | |
896 | -o conftest conftest.c -lgcc >&AC_FD_CC]); then | |
897 | libc_cv_gcc_dwarf2_unwind_info=yes | |
898 | else | |
899 | libc_cv_gcc_dwarf2_unwind_info=no | |
900 | fi | |
901 | fi | |
650425ce | 902 | rm -f conftest*]) |
9756dfe1 UD |
903 | case $libc_cv_gcc_dwarf2_unwind_info in |
904 | yes) | |
650425ce | 905 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) |
9756dfe1 UD |
906 | ;; |
907 | static) | |
908 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO) | |
909 | AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC) | |
910 | ;; | |
911 | esac | |
650425ce | 912 | |
c224a18a RM |
913 | ### End of automated tests. |
914 | ### Now run sysdeps configure fragments. | |
915 | ||
28f540f4 RM |
916 | # sysdeps configure fragments may set these with files to be linked below. |
917 | libc_link_dests= | |
918 | libc_link_sources= | |
919 | ||
920 | # Iterate over all the sysdep directories we will use, running their | |
921 | # configure fragments, and looking for a uname implementation. | |
922 | uname= | |
923 | for dir in $sysnames; do | |
57ba7bb4 UD |
924 | case $dir in |
925 | /*) dest=$dir ;; | |
926 | *) dest=$srcdir/$dir ;; | |
927 | esac | |
928 | if test -r $dest/configure; then | |
929 | AC_MSG_RESULT(running configure fragment for $dest) | |
930 | . $dest/configure | |
28f540f4 | 931 | fi |
4ca84cff | 932 | [ |
28f540f4 | 933 | if test -z "$uname"; then |
e7f1f046 UD |
934 | if test -r $dest/uname.c || |
935 | test -r $dest/uname.S || | |
936 | { test -r $dest/syscalls.list && | |
937 | grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then | |
b86199fb | 938 | uname=$dir |
4ca84cff | 939 | fi |
28f540f4 | 940 | fi |
4ca84cff | 941 | ]dnl |
28f540f4 RM |
942 | done |
943 | ||
944 | AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`) | |
945 | ||
946 | # If we will use the generic uname implementation, we must figure out what | |
947 | # it will say by examining the system, and write the results in config-name.h. | |
e7f1f046 | 948 | if test "$uname" = "sysdeps/generic"; then |
28f540f4 RM |
949 | |
950 | changequote(,)dnl | |
951 | uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'` | |
952 | changequote([,])dnl | |
953 | if test $uname_sysname != $config_os; then | |
954 | config_release=`echo $config_os | sed s/$uname_sysname//` | |
955 | fi | |
956 | dnl | |
957 | AC_DEFUN(LIBC_KERNEL_ID, [dnl | |
958 | if test -r /vmunix; then | |
959 | kernel_id=`strings /vmunix | grep UNIX` | |
960 | elif test -r /dynix; then | |
961 | kernel_id=`strings /dynix | grep DYNIX` | |
962 | else | |
963 | kernel_id= | |
964 | fi | |
965 | ])dnl | |
966 | ||
b8dc6a10 | 967 | AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl |
28f540f4 RM |
968 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
969 | changequote(,)dnl | |
970 | kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'` | |
971 | changequote([,])dnl | |
972 | if test x`echo "$config_release" | sed "s/^$kernel_release//"` \ | |
973 | != x$config_release; then | |
974 | # The configuration release is a substring of the kernel release. | |
975 | libc_cv_uname_release=$kernel_release | |
976 | elif test x$config_release != x; then | |
977 | libc_cv_uname_release=$config_release | |
978 | elif test x$kernel_release != x; then | |
979 | libc_cv_uname_release=$kernel_release | |
980 | else | |
981 | libc_cv_uname_release=unknown | |
982 | fi]) | |
28f540f4 RM |
983 | uname_release="$libc_cv_uname_release" |
984 | ||
b8dc6a10 | 985 | AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl |
28f540f4 RM |
986 | AC_REQUIRE([LIBC_KERNEL_ID])dnl |
987 | changequote(,)dnl | |
988 | kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'` | |
989 | changequote([,])dnl | |
990 | if test -n "$kernel_version"; then | |
991 | libc_cv_uname_version="$kernel_version" | |
992 | else | |
993 | libc_cv_uname_version=unknown | |
994 | fi]) | |
28f540f4 RM |
995 | uname_version="$libc_cv_uname_version" |
996 | ||
997 | AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl | |
998 | config_uname=config-name.h:config-name.in | |
999 | else | |
1000 | # For non-generic uname, we don't need to create config-name.h at all. | |
1001 | config_uname= | |
1002 | fi | |
1003 | ||
96aa2d94 RM |
1004 | AC_MSG_CHECKING(stdio selection) |
1005 | AC_SUBST(stdio) | |
1006 | case $stdio in | |
1007 | libio) AC_DEFINE(USE_IN_LIBIO) ;; | |
1008 | default) stdio=stdio ;; | |
1009 | esac | |
1010 | AC_MSG_RESULT($stdio) | |
1011 | ||
26b4d766 UD |
1012 | AC_MSG_CHECKING(ldap selection) |
1013 | AC_SUBST(LDAP) | |
1014 | case $add_ons in | |
1015 | *ldap*) | |
1016 | ldap=yes | |
1017 | LDAP=ldap ;; | |
1018 | *) ldap=no | |
1019 | LDAP= ;; | |
1020 | esac | |
1021 | AC_MSG_RESULT($ldap) | |
1022 | ||
84384f5b UD |
1023 | AC_SUBST(libc_cv_slibdir) |
1024 | AC_SUBST(libc_cv_sysconfdir) | |
1ef32c3d UD |
1025 | AC_SUBST(libc_cv_rootsbindir) |
1026 | ||
1027 | AC_SUBST(has_ldconfig) | |
84384f5b | 1028 | |
c224a18a | 1029 | AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) |
28f540f4 RM |
1030 | if test $gnu_ld = yes; then |
1031 | AC_DEFINE(HAVE_GNU_LD) | |
1032 | fi | |
1033 | if test $gnu_as = yes; then | |
1034 | AC_DEFINE(HAVE_GNU_AS) | |
1035 | fi | |
1036 | if test $elf = yes; then | |
1037 | AC_DEFINE(HAVE_ELF) | |
1038 | fi | |
28f540f4 | 1039 | |
650425ce | 1040 | AC_SUBST(static) |
ff3d7ed3 RM |
1041 | AC_SUBST(shared) |
1042 | if test $shared = default; then | |
1043 | if test $gnu_ld = yes; then | |
1044 | shared=$elf | |
f65fd747 UD |
1045 | else |
1046 | # For now we do not assume shared libs are available. In future more | |
1047 | # tests might become available. | |
1048 | shared=no | |
ff3d7ed3 RM |
1049 | fi |
1050 | fi | |
cc3fa755 | 1051 | |
9756dfe1 UD |
1052 | dnl We must not allow compilation without static library on some platforms. |
1053 | if test $static = no && test $shared = yes; then | |
1054 | case "$host_os" in | |
1055 | linux* | gnu*) | |
1056 | AC_MSG_ERROR([ | |
1057 | *** You must compile with support for the static library since the shared | |
1058 | *** library uses it. Restart configure without \`--disable-static'.]) | |
1059 | ;; | |
1060 | *) | |
1061 | ;; | |
1062 | esac | |
1063 | fi | |
1064 | ||
cc3fa755 UD |
1065 | AC_CACHE_CHECK([whether -fPIC is default], pic_default, |
1066 | [pic_default=yes | |
1067 | cat > conftest.c <<EOF | |
9756dfe1 | 1068 | #if defined __PIC__ || defined __pic__ || defined PIC || defined pic |
cc3fa755 UD |
1069 | # error PIC is default. |
1070 | #endif | |
1071 | EOF | |
1072 | if eval "${CC-cc} -S conftest.c 2>&AC_FD_CC 1>&AC_FD_CC"; then | |
1073 | pic_default=no | |
1074 | fi | |
1075 | rm -f conftest.*]) | |
1076 | AC_SUBST(pic_default) | |
1077 | ||
ff3d7ed3 RM |
1078 | AC_SUBST(profile) |
1079 | AC_SUBST(omitfp) | |
5a97622d | 1080 | AC_SUBST(bounded) |
5107cf1d | 1081 | AC_SUBST(static_nss) |
5ae3e846 | 1082 | AC_SUBST(nopic_initfini) |
ff3d7ed3 | 1083 | |
edf5b2d7 UD |
1084 | AC_SUBST(DEFINES) |
1085 | ||
28f540f4 RM |
1086 | if test "`(cd $srcdir; pwd)`" = "`pwd`"; then |
1087 | config_makefile= | |
1088 | else | |
1089 | config_makefile=Makefile | |
1090 | fi | |
1091 | ||
df4ef2ab UD |
1092 | VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h` |
1093 | AC_SUBST(VERSION) | |
1094 | ||
1618c590 UD |
1095 | if test $libc_cv_gcc_pipe_bug = yes; then |
1096 | realCC=$CC | |
1097 | CC=$makeCC | |
1098 | CFLAGS=$makeCFLAGS | |
1099 | fi | |
1100 | AC_OUTPUT_COMMANDS([ | |
1101 | if test "$realCC"; then | |
1102 | sed -e 's/%{pipe:-}/%|/g' `$realCC -print-file-name=specs` >specsT | |
1103 | mv specsT specs | |
1104 | fi], [realCC=$realCC]) | |
1105 | ||
ae1025be | 1106 | AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, , |
5107cf1d | 1107 | [echo '$config_vars' >> config.make; test -d bits || mkdir bits]) |