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