| blob | d2af5ab277386d2d1273a03a944b8363b685ff1c |
1 dnl Process this file with autoconf to produce a configure script.
2 AC_REVISION([$CVSid$])
3 AC_PREREQ(2.13)dnl dnl Minimum Autoconf version required.
4 AC_INIT(include/features.h)
5 AC_CONFIG_HEADER(config.h)
6 AC_CONFIG_AUX_DIR(scripts)
8 # This will get text that should go into config.make.
9 config_vars=
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 = $withval" ;;
20 esac
21 ])
22 # Check for a --with-gd argument and set libgd-LDFLAGS in config.make.
23 AC_ARG_WITH(gd, dnl
24 --with-gd=DIR find libgd include dir and library with prefix DIR,
25 [dnl
26 case "$with_gd" in
27 yes|''|no) ;;
28 *) libgd_include="-I$withval/include"
29 libgd_ldflags="-L$withval/lib" ;;
30 esac
31 ])
32 AC_ARG_WITH(gd-include, dnl
33 --with-gd-include=DIR find libgd include files in DIR,
34 [dnl
35 case "$with_gd_include" in
36 ''|no) ;;
37 *) libgd_include="-I$withval" ;;
38 esac
39 ])
40 AC_ARG_WITH(gd-lib, dnl
41 --with-gd-lib=DIR find libgd library files in DIR,
42 [dnl
43 case "$with_gd_lib" in
44 ''|no) ;;
45 *) libgd_ldflags="-L$withval" ;;
46 esac
47 ])
49 if test -n "$libgd_include"; then
50 config_vars="$config_vars
51 CFLAGS-memusagestat.c = $libgd_include"
52 fi
53 if test -n "$libgd_ldflags"; then
54 config_vars="$config_vars
55 libgd-LDFLAGS = $libgd_ldflags"
56 fi
58 dnl Arguments to specify presence of other packages/features.
59 AC_ARG_WITH(fp, dnl
60 [ --with-fp if using floating-point hardware [default=yes]],
61 with_fp=$withval, with_fp=yes)
62 AC_SUBST(with_fp)
63 AC_ARG_WITH(binutils, dnl
64 --with-binutils=PATH specify location of binutils (as and ld),
65 path_binutils=$withval, path_binutils='')
66 AC_ARG_WITH(elf, dnl
67 --with-elf if using the ELF object format,
68 elf=$withval, elf=no)
69 AC_ARG_WITH(xcoff, dnl
70 --with-xcoff if using the XCOFF object format,
71 xcoff=$withval, xcoff=no)
72 AC_ARG_WITH(cvs, dnl
73 [ --without-cvs if CVS should not be used],
74 with_cvs=$withval, with_cvs=yes)
75 if test "$with_cvs" = yes; then
76 if test -d $srcdir/CVS && grep :pserver: $srcdir/CVS/Root > /dev/null
77 then
78 with_cvs=no
79 fi
80 fi
81 AC_SUBST(with_cvs)
83 AC_ARG_WITH(headers, dnl
84 [ --with-headers=PATH location of system headers to use
85 [e.g. /usr/src/linux/include]
86 [default=compiler default]],
87 sysheaders=$withval, sysheaders='')
89 AC_ARG_ENABLE(sanity-checks, dnl
90 [ --disable-sanity-checks really do not use threads (should not be used
91 except in special situations) [default=yes]],
92 enable_sanity=$enableval, enable_sanity=yes)
94 dnl Arguments to enable or disable building the static, shared, profiled,
95 dnl and -fomit-frame-pointer libraries.
96 dnl I've disabled this for now since we cannot build glibc without static
97 dnl libraries built in the moment.
98 dnl AC_ARG_ENABLE(static, dnl
99 dnl [ --enable-static build static library [default=yes]],
100 dnl static=$enableval, static=yes)
101 static=yes
102 AC_ARG_ENABLE(shared, dnl
103 [ --enable-shared build shared library [default=yes if GNU ld & ELF]],
104 shared=$enableval, shared=default)
105 AC_ARG_ENABLE(profile, dnl
106 [ --enable-profile build profiled library [default=yes]],
107 profile=$enableval, profile=yes)
108 AC_ARG_ENABLE(omitfp, dnl
109 [ --enable-omitfp build undebuggable optimized library [default=no]],
110 omitfp=$enableval, omitfp=no)
111 AC_ARG_ENABLE(bounded, dnl
112 [ --enable-bounded build with runtime bounds checking [default=no]],
113 bounded=$enableval, bounded=no)
114 AC_ARG_ENABLE(versioning, dnl
115 [ --disable-versioning do not include versioning information in the
116 library objects [default=yes if supported]],
117 enable_versioning=$enableval, enable_versioning=yes)
119 AC_ARG_ENABLE(oldest-abi, dnl
120 [ --enable-oldest-abi=ABI configure the oldest ABI supported [e.g. 2.2]
121 [default=glibc default]],
122 oldest_abi=$enableval, oldest_abi=no)
123 if test "$oldest_abi" = yes || test "$oldest_abi" = no; then
124 oldest_abi=default
125 else
126 AC_DEFINE_UNQUOTED(GLIBC_OLDEST_ABI, "$oldest_abi")
127 fi
128 AC_SUBST(oldest_abi)
130 dnl Generic infrastructure for drop-in additions to libc.
131 AC_ARG_ENABLE(add-ons, dnl
132 [ --enable-add-ons[=DIR1,DIR2]...
133 configure and build add-ons in DIR1,DIR2,...
134 search for add-ons if no parameter given],
135 [case "$enableval" in
136 yes) add_ons=`cd $srcdir && echo */configure | sed -e 's!/configure!!g'`
137 test "$add_ons" = "*" && add_ons= ;;
138 *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;;
139 esac],
140 [add_ons=])
142 dnl Let the user avoid using TLS. Don't know why but...
143 AC_ARG_WITH(tls, dnl
144 [ --without-tls prevent support for TLS],
145 usetls=$withval, usetls=yes)
147 AC_CONFIG_SUBDIRS($add_ons)
148 add_ons_pfx=
149 if test x"$add_ons" != x; then
150 for f in $add_ons; do
151 # Some sanity checks
152 if test "$f" = "crypt"; then
153 AC_MSG_ERROR([
154 *** It seems that you're using an old \`crypt' add-on. crypt is now
155 *** part of glibc and using the old add-on will not work with this
156 *** release. Start again with fresh sources and without the old
157 *** \`crypt' add-on.])
158 fi
159 if test "$f" = "localedata"; then
160 AC_MSG_ERROR([
161 *** It seems that you're using an old \`localedata' add-on. localedata
162 *** is now part of glibc and using the old add-on will not work with
163 *** this release. Start again with fresh sources and without the old
164 *** \`localedata' add-on.])
165 fi
166 # Test whether such a subdir really exists.
167 if test -d $srcdir/$f; then
168 add_ons_pfx="$add_ons_pfx $f/"
169 else
170 AC_MSG_ERROR(add-on directory \"$f\" does not exist)
171 fi
172 done
173 fi
175 dnl On some platforms we cannot use dynamic loading. We must provide
176 dnl static NSS modules.
177 AC_ARG_ENABLE(static-nss, dnl
178 [ --enable-static-nss build static NSS modules [default=no]],
179 static_nss=$enableval, static_nss=no)
180 dnl Enable static NSS also if we build no shared objects.
181 if test x"$static_nss" = xyes || test x"$shared" = xno; then
182 static_nss=yes
183 AC_DEFINE(DO_STATIC_NSS)
184 fi
186 AC_ARG_ENABLE(force-install,
187 [ --disable-force-install don't force installation of files from this package,
188 even if they are older than the installed files],
189 force_install=$enableval, force_install=yes)
190 AC_SUBST(force_install)
192 dnl On some platforms we allow dropping compatibility with all kernel
193 dnl versions.
194 AC_ARG_ENABLE(kernel,
195 [ --enable-kernel=VERSION compile for compatibility with kernel not older
196 than VERSION],
197 minimum_kernel=$enableval)
198 dnl Prevent unreasonable values.
199 if test "$minimum_kernel" = yes || test "$minimum_kernel" = no; then
200 # Better nothing than this.
201 minimum_kernel=""
202 else
203 if test "$minimum_kernel" = current; then
204 minimum_kernel=`uname -r 2>/dev/null` || minimum_kernel=
205 fi
206 fi
208 dnl For the development we sometimes want gcc to issue even more warnings.
209 dnl This is not the default since many of the extra warnings are not
210 dnl appropriate.
211 AC_ARG_ENABLE(all-warnings,
212 [ --enable-all-warnings enable all useful warnings gcc can issue],
213 all_warnings=$enableval)
214 AC_SUBST(all_warnings)
216 AC_CANONICAL_HOST
218 # The way shlib-versions is used to generate soversions.mk uses a
219 # fairly simplistic model for name recognition that can't distinguish
220 # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os
221 # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can
222 # tell. This doesn't get used much beyond that, so it's fairly safe.
223 case "$host_os" in
224 linux*)
225 ;;
226 gnu*)
227 host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'`
228 ;;
229 esac
231 # We keep the original values in `$config_*' and never modify them, so we
232 # can write them unchanged into config.make. Everything else uses
233 # $machine, $vendor, and $os, and changes them whenever convenient.
234 config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os
236 # Don't allow vendor == "unknown"
237 test "$config_vendor" = unknown && config_vendor=
238 config_os="`echo $config_os | sed 's/^unknown-//'`"
240 # Some configurations imply other options.
241 case "$host_os" in
242 gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
243 # These systems always use GNU tools.
244 gnu_ld=yes gnu_as=yes ;;
245 esac
246 case "$host_os" in
247 # i586-linuxaout is mangled into i586-pc-linux-gnuaout
248 linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*)
249 ;;
250 gnu* | linux* | sysv4* | solaris2* | irix6*)
251 # These systems (almost) always use the ELF format.
252 elf=yes
253 ;;
254 aix*)
255 # These systems are always xcoff
256 xcoff=yes
257 elf=no
258 ;;
259 esac
261 machine=$config_machine
262 vendor=$config_vendor
263 os=$config_os
265 # config.guess on some IBM machines says `rs6000' instead of `powerpc'.
266 # Unify this here.
267 if test "$machine" = rs6000; then
268 machine="powerpc"
269 fi
271 ###
272 ### I put this here to prevent those annoying emails from people who cannot
273 ### read and try to compile glibc on unsupported platforms. --drepper
274 ###
275 ### By using the undocumented --enable-hacker-mode option for configure
276 ### one can skip this test to make the configuration not fail for unsupported
277 ### platforms.
278 ###
279 if test -z "$enable_hacker_mode"; then
280 case "$machine-$host_os" in
281 *-linux* | *-gnu* | arm*-none* | powerpc-aix4.3.*)
282 ;;
283 *)
284 echo "*** The GNU C library is currently not available for this platform."
285 echo "*** So far nobody cared to port it and if there is no volunteer it"
286 echo "*** might never happen. So, if you have interest to see glibc on"
287 echo "*** this platform visit"
288 echo "*** http://www.gnu.org/software/libc/porting.html"
289 echo "*** and join the group of porters"
290 exit 1
291 ;;
292 esac
293 fi
295 dnl We need to use [ and ] for other purposes for a while now.
296 changequote(,)dnl
297 # Expand the configuration machine name into a subdirectory by architecture
298 # type and particular chip.
299 case "$machine" in
300 a29k | am29000) base_machine=a29k machine=a29k ;;
301 alpha*) base_machine=alpha machine=alpha/$machine ;;
302 arm*) base_machine=arm machine=arm/arm32/$machine ;;
303 c3[012]) base_machine=cx0 machine=cx0/c30 ;;
304 c4[04]) base_machine=cx0 machine=cx0/c40 ;;
305 hppa*64*) base_machine=hppa machine=hppa/hppa64 ;;
306 hppa*) base_machine=hppa machine=hppa/hppa1.1 ;;
307 i[3456]86) base_machine=i386 machine=i386/$machine ;;
308 ia64) base_machine=ia64 machine=ia64 ;;
309 m680?0) base_machine=m68k machine=m68k/$machine ;;
310 m68k) base_machine=m68k machine=m68k/m68020 ;;
311 m88???) base_machine=m88k machine=m88k/$machine ;;
312 m88k) base_machine=m88k machine=m88k/m88100 ;;
313 mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
314 mips*) base_machine=mips machine=mips/$machine ;;
315 s390) base_machine=s390 machine=s390/s390-32 ;;
316 s390x) base_machine=s390 machine=s390/s390-64 ;;
317 sh3*) base_machine=sh machine=sh/sh3 ;;
318 sh4*) base_machine=sh machine=sh/sh4 ;;
319 sparc | sparcv[67])
320 base_machine=sparc machine=sparc/sparc32 ;;
321 sparcv8 | supersparc | hypersparc)
322 base_machine=sparc machine=sparc/sparc32/sparcv8 ;;
323 sparcv8plus | sparcv8plusa | sparcv9)
324 base_machine=sparc machine=sparc/sparc32/sparcv9 ;;
325 sparcv8plusb | sparcv9b)
326 base_machine=sparc machine=sparc/sparc32/sparcv9b ;;
327 sparc64 | ultrasparc)
328 base_machine=sparc machine=sparc/sparc64 ;;
329 sparc64b | ultrasparc3)
330 base_machine=sparc machine=sparc/sparc64/sparcv9b ;;
331 thumb*) base_machine=thumb machine=arm/thumb/$machine ;;
332 *) base_machine=$machine ;;
333 esac
334 changequote([,])dnl
335 AC_SUBST(base_machine)
337 if test "$base_machine" = "i386"; then
338 AC_DEFINE(USE_REGPARMS)
339 fi
341 # Compute the list of sysdep directories for this configuration.
342 # This can take a while to compute.
343 sysdep_dir=$srcdir/sysdeps
344 AC_MSG_CHECKING(sysdep dirs)
345 dnl We need to use [ and ] for other purposes for a while now.
346 changequote(,)dnl
347 # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
348 os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
350 case "$os" in
351 gnu*)
352 base_os=mach/hurd ;;
353 netbsd* | 386bsd* | freebsd* | bsdi*)
354 base_os=unix/bsd/bsd4.4 ;;
355 osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
356 base_os=unix/bsd ;;
357 sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
358 base_os=unix/sysv ;;
359 irix6*)
360 base_os=unix/sysv/irix6/$os ;;
361 solaris[2-9]*)
362 base_os=unix/sysv/sysv4 ;;
363 hpux*)
364 base_os=unix/sysv/hpux/$os ;;
365 aix4.3*)
366 base_os=unix/sysv/aix/aix4.3 ;;
367 none)
368 base_os=standalone ;;
369 *)
370 base_os='' ;;
371 esac
373 # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
374 tail=$os
375 ostry=$os
376 while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
377 ostry="$ostry /$o"
378 tail=$o
379 done
380 o=`echo $tail | sed 's/[0-9]*$//'`
381 if test $o != $tail; then
382 ostry="$ostry /$o"
383 fi
384 # For linux-gnu, try linux-gnu, then linux.
385 o=`echo $tail | sed 's/-.*$//'`
386 if test $o != $tail; then
387 ostry="$ostry /$o"
388 fi
390 # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
391 base=
392 tail=$base_os
393 while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
394 set $b
395 base="$base /$1"
396 tail="$2"
397 done
399 # For sparc/sparc32, try sparc/sparc32 and then sparc.
400 mach=
401 tail=$machine
402 while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
403 set $m
404 # Prepend the machine's FPU directory unless --without-fp.
405 if test "$with_fp" = yes; then
406 mach="$mach /$1/fpu"
407 fi
408 mach="$mach /$1"
409 tail="$2"
410 done
412 dnl We are done with glob and regexp uses of [ and ]; return to autoconf.
413 changequote([,])dnl
415 # Find what sysdep directories exist.
416 sysnames=
417 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
418 for d in $add_ons_pfx ''; do
419 for b in $base ''; do
420 for m0 in $mach ''; do
421 for v in /$vendor ''; do
422 test "$v" = / && continue
423 for o in /$ostry ''; do
424 test "$o" = / && continue
425 for m in $mach ''; do
426 if test "$m0$b$v$o$m"; then
427 try="${d}sysdeps$m0$b$v$o$m"
428 test -n "$enable_debug_configure" &&
429 echo "$0 [DEBUG]: try $try" >&2
430 if test -d $srcdir/$try; then
431 sysnames="$sysnames $try"
432 { test -n "$o" || test -n "$b"; } && os_used=t
433 { test -n "$m" || test -n "$m0"; } && machine_used=t
434 fi
435 fi
436 done
437 done
438 done
439 done
440 done
441 done
442 IFS="$ac_save_ifs"
444 if test -z "$os_used" && test "$os" != none; then
445 AC_MSG_ERROR(Operating system $os is not supported.)
446 fi
447 if test -z "$machine_used" && test "$machine" != none; then
448 AC_MSG_ERROR(The $machine is not supported.)
449 fi
451 # We have now validated the configuration.
454 # If using ELF, look for an `elf' subdirectory of each machine directory.
455 # We prepend these rather than inserting them whereever the machine appears
456 # because things specified by the machine's ELF ABI should override
457 # OS-specific things, and should always be the same for any OS on the
458 # machine (otherwise what's the point of an ABI?).
459 if test "$elf" = yes; then
460 elf_dirs=
461 for d in $add_ons_pfx ''; do
462 for m in $mach; do
463 if test -d $srcdir/${d}sysdeps$m/elf; then
464 elf_dirs="$elf_dirs ${d}sysdeps$m/elf"
465 fi
466 done
467 done
468 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
469 fi
472 # Expand the list of system names into a full list of directories
473 # from each element's parent name and Implies file (if present).
474 set $sysnames
475 names=
476 while test $# -gt 0; do
477 name=$1
478 shift
480 case " $names " in *" $name "*)
481 # Already in the list.
482 continue
483 esac
485 # Report each name as we discover it, so there is no long pause in output.
486 echo $ac_n "$name $ac_c" >&AC_FD_MSG
488 name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
490 case $name in
491 /*) xsrcdir= ;;
492 *) xsrcdir=$srcdir/ ;;
493 esac
494 test -n "$enable_debug_configure" &&
495 echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2
497 if test -f $xsrcdir$name/Implies; then
498 # Collect more names from the `Implies' file (removing comments).
499 implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`"
500 implied=
501 for x in $implied_candidate; do
502 found=no
503 if test -d $xsrcdir$name_base/$x; then
504 implied="$implied $name_base/$x";
505 found=yes
506 fi
507 for d in $add_ons_pfx ''; do
508 try="${d}sysdeps/$x"
509 case $d in
510 /*) try_srcdir= ;;
511 *) try_srcdir=$srcdir/ ;;
512 esac
513 test -n "$enable_debug_configure" &&
514 echo "[DEBUG]: $name implied $x try($d) {$try_srcdir}$try" >&2
515 if test $try != $xsrcdir$name_base/$x && test -d $try_srcdir$try;
516 then
517 implied="$implied $try"
518 found=yes
519 fi
520 done
521 if test $found = no; then
522 AC_MSG_WARN($name/Implies specifies nonexistent $x)
523 fi
524 done
525 else
526 implied=
527 fi
529 # Add NAME to the list of names.
530 names="$names $name"
532 # Find the parent of NAME, using the empty string if it has none.
533 changequote(,)dnl
534 parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
535 changequote([,])dnl
537 # Add the names implied by NAME, and NAME's parent (if it has one), to
538 # the list of names to be processed (the argument list). We prepend the
539 # implied names to the list and append the parent. We want implied
540 # directories to come before further directories inferred from the
541 # configuration components; this ensures that for sysv4, unix/common
542 # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
543 # after sysv4).
544 sysnames="`echo $implied $* $parent`"
545 test -n "$sysnames" && set $sysnames
546 done
548 # Add the default directories.
549 default_sysnames=sysdeps/generic
550 if test "$elf" = yes; then
551 default_sysnames="sysdeps/generic/elf $default_sysnames"
552 fi
553 sysnames="$names $default_sysnames"
554 AC_SUBST(sysnames)
555 # The other names were emitted during the scan.
556 AC_MSG_RESULT($default_sysnames)
559 ### Locate tools.
561 AC_PROG_INSTALL
562 if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then
563 # The makefiles need to use a different form to find it in $srcdir.
564 INSTALL='\$(..)./scripts/install-sh -c'
565 fi
566 AC_PROG_LN_S
568 # We need the physical current working directory. We cannot use the
569 # "pwd -P" shell builtin since that's not portable. Instead we try to
570 # find a pwd binary. Note that assigning to the PWD environment
571 # variable might have some interesting side effects, so we don't do
572 # that.
573 AC_PATH_PROG(PWD_P, pwd, no)
574 if test "$PWD_P" = no; then
575 AC_MSG_ERROR(*** A pwd binary could not be found.)
576 fi
578 # These programs are version sensitive.
579 AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl
580 AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v,
581 [version \([egcygnustpi-]*[0-9.]*\)],
582 [*gcc-2.9[5-9].*|*2.8.[1-9]*|*2.9|*2.9.[0-9]*|2.9[5-9]*|3.[0-9]*|cygnus-2.9[1-9]*|gcc-2.9[5-9]|gcc-2.1[0-9][0-9]|sgicc-*],
583 critic_missing=gcc)
584 AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version,
585 [GNU Make[^0-9]*\([0-9][0-9.]*\)],
586 [3.79* | 3.[89]*], critic_missing="$critic_missing make")
589 if test -n "$critic_missing"; then
590 AC_MSG_ERROR([
591 *** These critical programs are missing or too old:$critic_missing
592 *** Check the INSTALL file for required versions.])
593 fi
596 AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version,
597 [GNU gettext.* \([0-9]*\.[0-9.]*\)],
598 [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*],
599 MSGFMT=: aux_missing="$aux_missing msgfmt")
600 AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
601 [GNU texinfo.* \([0-9][0-9.]*\)],
602 [4.*],
603 MAKEINFO=: aux_missing="$aux_missing makeinfo")
604 AC_CHECK_PROG_VER(SED, sed, --version,
605 [GNU sed version \([0-9]*\.[0-9.]*\)],
606 [3.0[2-9]*|3.[1-9]*|[4-9]*],
607 SED=: aux_missing="$aux_missing sed")
609 AC_PROG_CC_LOCAL
610 AC_CANONICAL_BUILD
611 if test $host != $build; then
612 AC_CHECK_PROGS(BUILD_CC, gcc cc)
613 fi
614 AC_SUBST(cross_compiling)
615 AC_PROG_CPP
616 LIBC_PROG_BINUTILS
617 AC_CHECK_TOOL(MIG, mig)
619 # Accept binutils 2.10.1 or newer (and also any ia64 2.9 version)
620 # XXX Commented out because it filters out too many good versions.
621 # XXX --drepper
622 # AC_CHECK_PROG_VER(AS, $AS, --version,
623 # [GNU assembler.* \([0-9]*\.[0-9.]*\(-ia64-[0-9]*\)*\)],
624 # [2.10.[1-9]* | 2.1[1-9]* | 2.9-ia64-*], AS=: critic_missing=t)
626 test -n "$aux_missing" && AC_MSG_WARN([
627 *** These auxiliary programs are missing or too old:$aux_missing
628 *** some features will be disabled.
629 *** Check the INSTALL file for required versions.])
631 # glibcbug.in wants to know the compiler version.
632 CCVERSION=`$CC -v 2>&1 | sed -n 's/gcc version //p'`
633 AC_SUBST(CCVERSION)
635 # if using special system headers, find out the compiler's sekrit
636 # header directory and add that to the list. NOTE: Only does the right
637 # thing on a system that doesn't need fixincludes. (Not presently a problem.)
638 if test -n "$sysheaders"; then
639 ccheaders=`$CC -print-file-name=include`
640 SYSINCLUDES="-nostdinc -isystem $ccheaders -isystem $sysheaders"
641 fi
642 AC_SUBST(SYSINCLUDES)
644 # check if ranlib is necessary
645 AC_CACHE_CHECK(whether ranlib is necessary, libc_cv_ranlib_necessary, [dnl
646 cat > conftest.c <<EOF
647 int a;
648 char b;
649 void c(void) {}
650 EOF
651 $CC $CFLAGS -c conftest.c
652 $AR cr conftest.a conftest.c
653 cp conftest.a conftest2.a
654 $RANLIB conftest.a
655 if cmp -s conftest.a conftest2.a; then
656 libc_cv_ranlib_necessary=no
657 else
658 libc_cv_ranlib_necessary=yes
659 fi
660 rm -rf conftest*])
661 if test "$libc_cv_ranlib_necessary" = no; then
662 RANLIB=:
663 fi
665 # Test if LD_LIBRARY_PATH contains the notation for the current directory
666 # since this would lead to problems installing/building glibc.
667 # LD_LIBRARY_PATH contains the current directory if one of the following
668 # is true:
669 # - one of the terminals (":" and ";") is the first or last sign
670 # - two terminals occur directly after each other
671 # - the path contains an element with a dot in it
672 AC_MSG_CHECKING(LD_LIBRARY_PATH variable)
673 changequote(,)dnl
674 case ${LD_LIBRARY_PATH} in
675 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
676 ld_library_path_setting="contains current directory"
677 ;;
678 *)
679 ld_library_path_setting="ok"
680 ;;
681 esac
682 changequote([,])dnl
683 AC_MSG_RESULT($ld_library_path_setting)
684 if test "$ld_library_path_setting" != "ok"; then
685 AC_MSG_ERROR([
686 *** LD_LIBRARY_PATH shouldn't contain the current directory when
687 *** building glibc. Please change the environment variable
688 *** and run configure again.])
689 fi
691 AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl
692 if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then
693 libc_cv_gcc_static_libgcc=
694 else
695 libc_cv_gcc_static_libgcc=-static-libgcc
696 fi])
697 AC_SUBST(libc_cv_gcc_static_libgcc)
699 AC_PATH_PROG(BASH, bash, no)
700 if test "$BASH" != no &&
701 $BASH -c 'test "$BASH_VERSINFO" \
702 && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
703 libc_cv_have_bash2=yes
704 else
705 libc_cv_have_bash2=no
706 fi
707 AC_SUBST(libc_cv_have_bash2)
709 dnl We need a ksh compatible shell for tzselect.
710 if test "$BASH" = no; then
711 AC_PATH_PROG(KSH, ksh, no)
712 if test "$KSH" = no; then
713 libc_cv_have_ksh=no
714 else
715 libc_cv_have_ksh=yes
716 fi
717 else
718 KSH="$BASH"
719 AC_SUBST(KSH)
720 libc_cv_have_ksh=yes
721 fi
722 AC_SUBST(libc_cv_have_ksh)
724 AC_PROG_AWK
725 AC_PATH_PROG(PERL, perl, no)
726 if test "$PERL" != no &&
727 (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then
728 PERL=no
729 fi
730 AC_PATH_PROG(INSTALL_INFO, install-info, no,
731 $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin)
732 if test "$INSTALL_INFO" != "no"; then
733 AC_CACHE_CHECK(for old Debian install-info, libc_cv_old_debian_install_info,
734 [mkdir conftest.d
735 # There is a hard ^_ on the next line. I am open to better ideas.
736 (echo '\x1f'
737 echo 'File: dir Node: Top This is the top of the INFO tree'
738 echo '* Menu:') >conftest.d/dir
739 (echo 'INFO-DIR-SECTION i-d-s works'
740 echo 'START-INFO-DIR-ENTRY'
741 echo '* Prog: (prog). Program.'
742 echo 'END-INFO-DIR-ENTRY') >conftest.d/prog.info
743 if $INSTALL_INFO --info-dir=conftest.d conftest.d/prog.info >&AC_FD_CC 2>&1
744 then
745 if grep -s 'i-d-s works' conftest.d/dir >/dev/null
746 then libc_cv_old_debian_install_info=no
747 else libc_cv_old_debian_install_info=yes
748 fi
749 else libc_cv_old_debian_install_info=no testfailed=t
750 fi
751 rm -fr conftest.d])
752 if test -n "$testfailed"
753 then AC_MSG_WARN([install-info errored out, check config.log])
754 fi
755 OLD_DEBIAN_INSTALL_INFO=$libc_cv_old_debian_install_info
756 fi
757 AC_SUBST(OLD_DEBIAN_INSTALL_INFO)
759 AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin)
761 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
762 echo '#include <stddef.h>
763 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
764 if eval "$ac_cpp conftest.c 2>/dev/null" \
765 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
766 libc_cv_signed_size_t=no
767 else
768 libc_cv_signed_size_t=yes
769 fi
770 rm -f conftest*])
771 if test $libc_cv_signed_size_t = yes; then
772 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
773 cat >> confdefs.h <<\EOF
774 #undef __SIZE_TYPE__
775 #define __SIZE_TYPE__ unsigned
776 EOF
777 fi
779 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
780 AC_TRY_COMPILE(dnl
781 [#define __need_size_t
782 #define __need_wchar_t
783 #include <stddef.h>
784 #define __need_NULL
785 #include <stddef.h>], [size_t size; wchar_t wchar;
786 #ifdef offsetof
787 #error stddef.h ignored __need_*
788 #endif
789 if (&size == NULL || &wchar == NULL) abort ();],
790 libc_cv_friendly_stddef=yes,
791 libc_cv_friendly_stddef=no)])
792 if test $libc_cv_friendly_stddef = yes; then
793 config_vars="$config_vars
794 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
795 fi
797 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
798 libc_cv_need_minus_P, [dnl
799 cat > conftest.S <<EOF
800 #include "confdefs.h"
801 /* Nothing whatsoever. */
802 EOF
803 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
804 libc_cv_need_minus_P=no
805 else
806 libc_cv_need_minus_P=yes
807 fi
808 rm -f conftest*])
809 if test $libc_cv_need_minus_P = yes; then
810 config_vars="$config_vars
811 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
812 fi
814 AC_MSG_CHECKING(whether .text pseudo-op must be used)
815 AC_CACHE_VAL(libc_cv_dot_text, [dnl
816 cat > conftest.s <<EOF
817 .text
818 EOF
819 libc_cv_dot_text=
820 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
821 libc_cv_dot_text=.text
822 fi
823 rm -f conftest*])
824 if test -z "$libc_cv_dot_text"; then
825 AC_MSG_RESULT(no)
826 else
827 AC_MSG_RESULT(yes)
828 fi
830 AC_CACHE_CHECK(for assembler global-symbol directive,
831 libc_cv_asm_global_directive, [dnl
832 libc_cv_asm_global_directive=UNKNOWN
833 for ac_globl in .globl .global .EXPORT; do
834 cat > conftest.s <<EOF
835 ${libc_cv_dot_text}
836 ${ac_globl} foo
837 foo:
838 EOF
839 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
840 libc_cv_asm_global_directive=${ac_globl}
841 fi
842 rm -f conftest*
843 test $libc_cv_asm_global_directive != UNKNOWN && break
844 done])
845 if test $libc_cv_asm_global_directive = UNKNOWN; then
846 AC_MSG_ERROR(cannot determine asm global directive)
847 else
848 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
849 fi
851 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
852 cat > conftest.s <<EOF
853 ${libc_cv_dot_text}
854 foo:
855 .set glibc_conftest_frobozz,foo
856 $libc_cv_asm_global_directive glibc_conftest_frobozz
857 EOF
858 # The alpha-dec-osf1 assembler gives only a warning for `.set'
859 # (but it doesn't work), so we must do a linking check to be sure.
860 cat > conftest1.c <<\EOF
861 extern int glibc_conftest_frobozz;
862 main () { printf ("%d\n", glibc_conftest_frobozz); }
863 EOF
864 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
865 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
866 libc_cv_asm_set_directive=yes
867 else
868 libc_cv_asm_set_directive=no
869 fi
870 rm -f conftest*])
871 if test $libc_cv_asm_set_directive = yes; then
872 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
873 fi
875 # The Aix ld uses global .symbol_names instead of symbol_names.
876 case "$os" in
877 aix4.3*)
878 AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME)
879 esac
881 AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive,
882 [cat > conftest.s <<EOF
883 ${libc_cv_dot_text}
884 _sym:
885 .symver _sym,sym@VERS
886 EOF
887 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
888 libc_cv_asm_symver_directive=yes
889 else
890 libc_cv_asm_symver_directive=no
891 fi
892 rm -f conftest*])
893 AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl
894 if test $libc_cv_asm_symver_directive = yes; then
895 cat > conftest.s <<EOF
896 ${libc_cv_dot_text}
897 _sym:
898 .symver _sym,sym@VERS
899 EOF
900 cat > conftest.map <<EOF
901 VERS_1 {
902 global: sym;
903 };
905 VERS_2 {
906 global: sym;
907 } VERS_1;
908 EOF
909 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
910 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o
911 -nostartfiles -nostdlib
912 -Wl,--version-script,conftest.map
913 1>&AC_FD_CC]);
914 then
915 libc_cv_ld_version_script_option=yes
916 else
917 libc_cv_ld_version_script_option=no
918 fi
919 else
920 libc_cv_ld_version_script_option=no
921 fi
922 else
923 libc_cv_ld_version_script_option=no
924 fi
925 rm -f conftest*])
926 if test $shared != no &&
927 test $libc_cv_asm_symver_directive = yes &&
928 test $libc_cv_ld_version_script_option = yes &&
929 test $enable_versioning = yes; then
930 VERSIONING=yes
931 AC_DEFINE(DO_VERSIONING)
932 else
933 VERSIONING=no
934 fi
935 AC_SUBST(VERSIONING)
937 if test $elf = yes && test $shared != no && test $VERSIONING = no; then
938 echo "\
939 *** WARNING: You should not compile GNU libc without versioning. Not using
940 *** versioning will introduce incompatibilities so that old binaries
941 *** will not run anymore.
942 *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)."
943 fi
944 if test $elf = yes; then
945 AC_CACHE_CHECK(for .previous assembler directive,
946 libc_cv_asm_previous_directive, [dnl
947 cat > conftest.s <<EOF
948 .section foo_section
949 .previous
950 EOF
951 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
952 libc_cv_asm_previous_directive=yes
953 else
954 libc_cv_asm_previous_directive=no
955 fi
956 rm -f conftest*])
957 if test $libc_cv_asm_previous_directive = yes; then
958 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
959 else
960 AC_CACHE_CHECK(for .popsection assembler directive,
961 libc_cv_asm_popsection_directive, [dnl
962 cat > conftest.s <<EOF
963 .pushsection foo_section
964 .popsection
965 EOF
966 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
967 libc_cv_asm_popsection_directive=yes
968 else
969 libc_cv_asm_popsection_directive=no
970 fi
971 rm -f conftest*])
972 if test $libc_cv_asm_popsection_directive = yes; then
973 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
974 fi
975 fi
976 AC_CACHE_CHECK(for .protected and .hidden assembler directive,
977 libc_cv_asm_protected_directive, [dnl
978 cat > conftest.s <<EOF
979 .protected foo
980 foo:
981 .hidden bar
982 bar:
983 EOF
984 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
985 libc_cv_asm_protected_directive=yes
986 else
987 libc_cv_asm_protected_directive=no
988 fi
989 rm -f conftest*])
990 AC_SUBST(libc_cv_asm_protected_directive)
991 AC_DEFINE(HAVE_PROTECTED)
992 AC_DEFINE(HAVE_HIDDEN)
994 if test $libc_cv_asm_protected_directive = yes; then
995 AC_CACHE_CHECK(whether __attribute__((visibility())) is supported,
996 libc_cv_visibility_attribute,
997 [cat > conftest.c <<EOF
998 int foo __attribute__ ((visibility ("hidden"))) = 1;
999 int bar __attribute__ ((visibility ("protected"))) = 1;
1000 EOF
1001 libc_cv_visibility_attribute=no
1002 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1003 if grep '\.hidden.*foo' conftest.s >/dev/null; then
1004 if grep '\.protected.*bar' conftest.s >/dev/null; then
1005 libc_cv_visibility_attribute=yes
1006 fi
1007 fi
1008 fi
1009 rm -f conftest.[cs]
1010 ])
1011 if test $libc_cv_visibility_attribute = yes; then
1012 AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE)
1013 fi
1014 fi
1016 if test $libc_cv_visibility_attribute = yes; then
1017 AC_CACHE_CHECK(for broken __attribute__((visibility())),
1018 libc_cv_broken_visibility_attribute,
1019 [cat > conftest.c <<EOF
1020 int foo (int x);
1021 int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden")));
1022 int bar (int x) { return x; }
1023 EOF
1024 libc_cv_broken_visibility_attribute=yes
1025 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1026 changequote(,)dnl
1027 if grep '\.hidden[ _]foo' conftest.s >/dev/null; then
1028 changequote([,])dnl
1029 libc_cv_broken_visibility_attribute=no
1030 fi
1031 fi
1032 rm -f conftest.c conftest.s
1033 ])
1034 if test $libc_cv_broken_visibility_attribute = yes; then
1035 AC_DEFINE(HAVE_BROKEN_VISIBILITY_ATTRIBUTE)
1036 fi
1037 fi
1039 AC_CACHE_CHECK(for broken __attribute__((alias())),
1040 libc_cv_broken_alias_attribute,
1041 [cat > conftest.c <<EOF
1042 extern int foo (int x) __asm ("xyzzy");
1043 int bar (int x) { return x; }
1044 extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
1045 EOF
1046 libc_cv_broken_alias_attribute=yes
1047 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1048 if grep 'xyzzy' conftest.s >/dev/null; then
1049 libc_cv_broken_alias_attribute=no
1050 fi
1051 fi
1052 rm -f conftest.c conftest.s
1053 ])
1054 if test $libc_cv_broken_alias_attribute = yes; then
1055 AC_DEFINE(HAVE_BROKEN_ALIAS_ATTRIBUTE)
1056 fi
1058 if test $libc_cv_visibility_attribute = yes -a $gnu_ld = yes; then
1059 AC_CACHE_CHECK(whether to put _rtld_local into .sdata section,
1060 libc_cv_have_sdata_section,
1061 [echo "int i;" > conftest.c
1062 libc_cv_have_sdata_section=no
1063 if ${CC-cc} -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \
1064 | grep '\.sdata' >/dev/null; then
1065 libc_cv_have_sdata_section=yes
1066 fi
1067 rm -f conftest.c conftest.so
1068 ])
1069 if test $libc_cv_have_sdata_section = yes; then
1070 AC_DEFINE(HAVE_SDATA_SECTION)
1071 fi
1072 fi
1074 AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
1075 libc_cv_initfinit_array, [dnl
1076 cat > conftest.c <<EOF
1077 int _start (void) { return 0; }
1078 int __start (void) { return 0; }
1079 int foo (void) { return 1; }
1080 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
1081 EOF
1082 if AC_TRY_COMMAND([${CC-cc} -o conftest conftest.c
1083 -static -nostartfiles -nostdlib 1>&AC_FD_CC])
1084 then
1085 if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then
1086 libc_cv_initfinit_array=yes
1087 else
1088 libc_cv_initfinit_array=no
1089 fi
1090 else
1091 libc_cv_initfinit_array=no
1092 fi
1093 rm -f conftest*])
1094 AC_SUBST(libc_cv_initfinit_array)
1095 if test $libc_cv_initfinit_array = yes; then
1096 AC_DEFINE(HAVE_INITFINI_ARRAY)
1097 fi
1099 AC_CACHE_CHECK(for -z nodelete option,
1100 libc_cv_z_nodelete, [dnl
1101 cat > conftest.c <<EOF
1102 int _start (void) { return 42; }
1103 EOF
1104 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1105 -nostartfiles -nostdlib
1106 -Wl,--enable-new-dtags,-z,nodelete 1>&AC_FD_CC])
1107 then
1108 libc_cv_z_nodelete=yes
1109 else
1110 libc_cv_z_nodelete=no
1111 fi
1112 rm -f conftest*])
1113 AC_SUBST(libc_cv_z_nodelete)
1115 AC_CACHE_CHECK(for -z nodlopen option,
1116 libc_cv_z_nodlopen, [dnl
1117 cat > conftest.c <<EOF
1118 int _start (void) { return 42; }
1119 EOF
1120 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1121 -nostartfiles -nostdlib
1122 -Wl,--enable-new-dtags,-z,nodlopen 1>&AC_FD_CC])
1123 then
1124 libc_cv_z_nodlopen=yes
1125 else
1126 libc_cv_z_nodlopen=no
1127 fi
1128 rm -f conftest*])
1129 AC_SUBST(libc_cv_z_nodlopen)
1131 AC_CACHE_CHECK(for -z initfirst option,
1132 libc_cv_z_initfirst, [dnl
1133 cat > conftest.c <<EOF
1134 int _start (void) { return 42; }
1135 EOF
1136 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1137 -nostartfiles -nostdlib
1138 -Wl,--enable-new-dtags,-z,initfirst 1>&AC_FD_CC])
1139 then
1140 libc_cv_z_initfirst=yes
1141 else
1142 libc_cv_z_initfirst=no
1143 fi
1144 rm -f conftest*])
1145 AC_SUBST(libc_cv_z_initfirst)
1147 AC_CACHE_CHECK(for -Bgroup option,
1148 libc_cv_Bgroup, [dnl
1149 cat > conftest.c <<EOF
1150 int _start (void) { return 42; }
1151 EOF
1152 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&AC_FD_CC])
1153 then
1154 libc_cv_Bgroup=yes
1155 else
1156 libc_cv_Bgroup=no
1157 fi
1158 rm -f conftest*])
1159 AC_SUBST(libc_cv_Bgroup)
1161 AC_CACHE_CHECK(for -z combreloc,
1162 libc_cv_z_combreloc, [dnl
1163 cat > conftest.c <<EOF
1164 extern int bar (int);
1165 extern int mumble;
1166 int foo (void) { return bar (mumble); }
1167 EOF
1168 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1169 -nostdlib -nostartfiles
1170 -Wl,-z,combreloc 1>&AC_FD_CC])
1171 then
1172 dnl The following test is a bit weak. We must use a tool which can test
1173 dnl cross-platform since the gcc used can be a cross compiler. Without
1174 dnl introducing new options this is not easily doable. Instead use a tool
1175 dnl which always is cross-platform: readelf. To detect whether -z combreloc
1176 dnl look for a section named .rel.dyn.
1177 if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then
1178 libc_cv_z_combreloc=yes
1179 else
1180 libc_cv_z_combreloc=no
1181 fi
1182 else
1183 libc_cv_z_combreloc=no
1184 fi
1185 rm -f conftest*])
1186 if test "$libc_cv_z_combreloc" = yes; then
1187 AC_DEFINE(HAVE_Z_COMBRELOC)
1188 fi
1189 fi
1190 AC_SUBST(libc_cv_z_combreloc)
1192 if test $elf != yes; then
1193 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
1194 [AC_TRY_COMPILE(, [asm (".section .init");
1195 asm (".section .fini");
1196 asm ("${libc_cv_dot_text}");],
1197 libc_cv_have_initfini=yes,
1198 libc_cv_have_initfini=no)])
1199 AC_SUBST(libc_cv_have_initfini)dnl
1200 if test $libc_cv_have_initfini = yes; then
1201 AC_DEFINE(HAVE_INITFINI)
1202 fi
1203 fi
1205 if test $elf = yes -a $gnu_ld = yes; then
1206 AC_CACHE_CHECK(whether cc puts quotes around section names,
1207 libc_cv_have_section_quotes,
1208 [cat > conftest.c <<EOF
1209 static const int foo
1210 __attribute__ ((section ("bar"))) = 1;
1211 EOF
1212 if ${CC-cc} -S conftest.c -o conftest.s; then
1213 if grep '\.section.*"bar"' conftest.s >/dev/null; then
1214 libc_cv_have_section_quotes=yes
1215 else
1216 libc_cv_have_section_quotes=no
1217 fi
1218 else
1219 libc_cv_have_section_quotes=unknown
1220 fi
1221 rm -f conftest.[cs]
1222 ])
1223 if test $libc_cv_have_section_quotes = yes; then
1224 AC_DEFINE(HAVE_SECTION_QUOTES)
1225 fi
1226 fi
1228 dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
1229 AC_DEFUN(AC_CHECK_ASM_UNDERSCORE,
1230 [cat > conftest.$ac_ext <<EOF
1231 dnl This sometimes fails to find confdefs.h, for some reason.
1232 dnl [#]line __oline__ "[$]0"
1233 [#]line __oline__ "configure"
1234 #include "confdefs.h"
1235 void underscore_test(void) {
1236 return; }
1237 EOF
1238 if AC_TRY_EVAL(ac_compile); then
1239 if grep _underscore_test conftest* >/dev/null; then
1240 ifelse([$1], , :, [rm -f conftest*
1241 $1])
1242 else
1243 ifelse([$2], , , [rm -f conftest*
1244 $2])
1245 fi
1246 else
1247 echo "configure: failed program was:" >&AC_FD_CC
1248 cat conftest.$ac_ext >&AC_FD_CC
1249 ifelse([$2], , , [rm -f conftest*
1250 $2])
1251 fi
1252 rm -f conftest*])
1254 if test $elf = yes; then
1255 libc_cv_asm_underscores=no
1256 else
1257 if test $ac_cv_prog_cc_works = yes; then
1258 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
1259 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
1260 libc_cv_asm_underscores=yes,
1261 libc_cv_asm_underscores=no)])
1262 else
1263 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
1264 [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes,
1265 libc_cv_asm_underscores=no)])
1266 fi
1267 fi
1268 if test $libc_cv_asm_underscores = no; then
1269 AC_DEFINE(NO_UNDERSCORES)
1270 fi
1272 if test $elf = yes; then
1273 libc_cv_weak_symbols=yes
1274 fi
1276 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
1277 [dnl
1278 cat > conftest.s <<EOF
1279 ${libc_cv_dot_text}
1280 ${libc_cv_asm_global_directive} foo
1281 foo:
1282 .weak foo
1283 .weak bar; bar = foo
1284 EOF
1285 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
1286 libc_cv_asm_weak_directive=yes
1287 else
1288 libc_cv_asm_weak_directive=no
1289 fi
1290 rm -f conftest*])
1292 if test $libc_cv_asm_weak_directive = no; then
1293 AC_CACHE_CHECK(for assembler .weakext directive,
1294 libc_cv_asm_weakext_directive,
1295 [dnl
1296 cat > conftest.s <<EOF
1297 ${libc_cv_dot_text}
1298 ${libc_cv_asm_global_directive} foo
1299 foo:
1300 .weakext bar foo
1301 .weakext baz
1302 ${libc_cv_asm_global_directive} baz
1303 baz:
1304 EOF
1305 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
1306 libc_cv_asm_weakext_directive=yes
1307 else
1308 libc_cv_asm_weakext_directive=no
1309 fi
1310 rm -f conftest*])
1312 fi # no .weak
1314 if test $libc_cv_asm_weak_directive = yes; then
1315 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
1316 elif test $libc_cv_asm_weakext_directive = yes; then
1317 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
1318 fi
1320 dnl The standard hppa assembler uses `;' to start comments and `!'
1321 dnl as a line separator. CRIS uses `;' to start comments and `@' for
1322 dnl line separator.
1323 case "${host_cpu}-${host_os}" in
1324 cris*)
1325 libc_cv_asm_line_sep='@'
1326 AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
1327 ;;
1328 hppa*linux*)
1329 AC_CACHE_CHECK(for assembler line separator,
1330 libc_cv_asm_line_sep, [dnl
1331 cat > conftest.s <<EOF
1332 nop ; is_old_puffin
1333 EOF
1334 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
1335 libc_cv_asm_line_sep='!'
1336 else
1337 if test -z "$enable_hacker_mode"; then
1338 echo "*** You need a newer assembler to compile glibc"
1339 rm -f conftest*
1340 exit 1
1341 fi
1342 libc_cv_asm_line_sep=';'
1343 fi
1344 rm -f conftest*])
1345 AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
1346 ;;
1347 esac
1349 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
1350 cat > conftest.c <<\EOF
1351 _start () {}
1352 int __eh_pc;
1353 __throw () {}
1354 EOF
1355 dnl No \ in command here because it ends up inside ''.
1356 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
1357 -nostdlib -nostartfiles -Wl,--no-whole-archive
1358 -o conftest conftest.c 1>&AC_FD_CC]); then
1359 libc_cv_ld_no_whole_archive=yes
1360 else
1361 libc_cv_ld_no_whole_archive=no
1362 fi
1363 rm -f conftest*])
1364 if test $libc_cv_ld_no_whole_archive = yes; then
1365 no_whole_archive=-Wl,--no-whole-archive
1366 fi
1367 AC_SUBST(no_whole_archive)dnl
1369 AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl
1370 cat > conftest.c <<\EOF
1371 _start () {}
1372 int __eh_pc;
1373 __throw () {}
1374 EOF
1375 dnl No \ in command here because it ends up inside ''.
1376 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
1377 -nostdlib -nostartfiles -fexceptions
1378 -o conftest conftest.c 1>&AC_FD_CC]); then
1379 libc_cv_gcc_exceptions=yes
1380 else
1381 libc_cv_gcc_exceptions=no
1382 fi
1383 rm -f conftest*])
1384 if test $libc_cv_gcc_exceptions = yes; then
1385 exceptions=-fexceptions
1386 fi
1387 AC_SUBST(exceptions)dnl
1389 if test "$base_machine" = alpha ; then
1390 AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl
1391 cat > conftest.c <<\EOF
1392 foo () { }
1393 EOF
1394 dnl
1395 if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]);
1396 then
1397 libc_cv_gcc_alpha_ng_prefix=yes
1398 else
1399 libc_cv_gcc_alpha_ng_prefix=no
1400 fi
1401 rm -f conftest* ])
1402 if test $libc_cv_gcc_alpha_ng_prefix = yes ; then
1403 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$")
1404 else
1405 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "")
1406 fi
1407 fi
1409 if test "$host_cpu" = powerpc ; then
1410 # Check for a bug present in at least versions 2.8.x of GCC
1411 # and versions 1.0.x of EGCS.
1412 AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl
1413 AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],,
1414 libc_cv_c_asmcr0_bug='no',
1415 libc_cv_c_asmcr0_bug='yes')])
1416 if test "$libc_cv_c_asmcr0_bug" != 'no'; then
1417 AC_DEFINE(BROKEN_PPC_ASM_CR0)
1418 fi
1419 fi
1421 AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info,
1422 [cat > conftest.c <<EOF
1423 #line __oline__ "configure"
1424 static char *__EH_FRAME_BEGIN__;
1425 _start ()
1426 {
1427 #ifdef CHECK__register_frame
1428 __register_frame (__EH_FRAME_BEGIN__);
1429 __deregister_frame (__EH_FRAME_BEGIN__);
1430 #endif
1431 #ifdef CHECK__register_frame_info
1432 __register_frame_info (__EH_FRAME_BEGIN__);
1433 __deregister_frame_info (__EH_FRAME_BEGIN__);
1434 #endif
1435 }
1436 int __eh_pc;
1437 __throw () {}
1438 /* FIXME: this is fragile. */
1439 malloc () {}
1440 strcmp () {}
1441 strlen () {}
1442 memcpy () {}
1443 memset () {}
1444 free () {}
1445 abort () {}
1446 __bzero () {}
1447 EOF
1448 dnl No \ in command here because it ends up inside ''.
1449 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
1450 -nostdlib -nostartfiles
1451 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1452 libc_cv_gcc_dwarf2_unwind_info=static
1453 else
1454 libc_cv_gcc_dwarf2_unwind_info=no
1455 fi
1456 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
1457 -nostdlib -nostartfiles
1458 -o conftest conftest.c -lgcc -lgcc_eh >&AC_FD_CC]); then
1459 if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
1460 -o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
1461 | grep -q -- --eh-frame-hdr; then
1462 libc_cv_gcc_dwarf2_unwind_info=no_registry_needed
1463 else
1464 libc_cv_gcc_dwarf2_unwind_info=static
1465 fi
1466 else
1467 libc_cv_gcc_dwarf2_unwind_info=no
1468 fi
1469 if test $libc_cv_gcc_dwarf2_unwind_info = no; then
1470 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame
1471 -nostdlib -nostartfiles
1472 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1473 libc_cv_gcc_dwarf2_unwind_info=yes
1474 else
1475 libc_cv_gcc_dwarf2_unwind_info=no
1476 fi
1477 fi
1478 rm -f conftest*])
1479 case $libc_cv_gcc_dwarf2_unwind_info in
1480 yes)
1481 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
1482 ;;
1483 static)
1484 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
1485 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC)
1486 ;;
1487 esac
1489 dnl Check whether compiler understands __builtin_expect.
1490 AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect,
1491 [cat > conftest.c <<EOF
1492 #line __oline__ "configure"
1493 int foo (int a)
1494 {
1495 a = __builtin_expect (a, 10);
1496 return a == 10 ? 0 : 1;
1497 }
1498 EOF
1499 dnl No \ in command here because it ends up inside ''.
1500 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
1501 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1502 libc_cv_gcc_builtin_expect=yes
1503 else
1504 libc_cv_gcc_builtin_expect=no
1505 fi
1506 rm -f conftest*])
1507 if test "$libc_cv_gcc_builtin_expect" = yes; then
1508 AC_DEFINE(HAVE_BUILTIN_EXPECT)
1509 fi
1511 AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl
1512 cat > conftest.c <<\EOF
1513 void zero (void *x)
1514 {
1515 __builtin_memset (x, 0, 1000);
1516 }
1517 EOF
1518 dnl
1519 if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]);
1520 then
1521 libc_cv_gcc_builtin_memset=no
1522 else
1523 libc_cv_gcc_builtin_memset=yes
1524 fi
1525 rm -f conftest* ])
1526 if test "$libc_cv_gcc_builtin_memset" = yes ; then
1527 AC_DEFINE(HAVE_BUILTIN_MEMSET)
1528 fi
1530 dnl Check whether the compiler supports subtraction of local labels.
1531 AC_CACHE_CHECK(for local label subtraction, libc_cv_gcc_subtract_local_labels,
1532 [cat > conftest.c <<EOF
1533 changequote(,)dnl
1534 #line __oline__ "configure"
1535 int foo (int a)
1536 {
1537 static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 };
1538 void *p = &&l1 + ar[a];
1539 goto *p;
1540 l1:
1541 return 1;
1542 l2:
1543 return 2;
1544 }
1545 changequote([,])dnl
1546 EOF
1547 dnl No \ in command here because it ends up inside ''.
1548 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
1549 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1550 libc_cv_gcc_subtract_local_labels=yes
1551 else
1552 libc_cv_gcc_subtract_local_labels=no
1553 fi
1554 rm -f conftest*])
1555 if test "$libc_cv_gcc_subtract_local_labels" = yes; then
1556 AC_DEFINE(HAVE_SUBTRACT_LOCAL_LABELS)
1557 fi
1559 dnl Check whether the compiler supports the __thread keyword.
1560 AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread,
1561 [cat > conftest.c <<EOF
1562 __thread int a = 42;
1563 EOF
1564 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -c conftest.c >&AC_FD_CC]); then
1565 libc_cv_gcc___thread=yes
1566 else
1567 libc_cv_gcc___thread=no
1568 fi
1569 rm -f conftest*])
1570 if test "$libc_cv_gcc___thread" = yes; then
1571 AC_DEFINE(HAVE___THREAD)
1572 fi
1575 dnl Check whether we have the gd library available.
1576 AC_MSG_CHECKING(for libgd)
1577 if test "$with_gd" != "no"; then
1578 old_CFLAGS="$CFLAGS"
1579 CFLAGS="$CFLAGS $libgd_include"
1580 old_LDFLAGS="$LDFLAGS"
1581 LDFLAGS="$LDFLAGS $libgd_ldflags"
1582 old_LIBS="$LIBS"
1583 LIBS="$LIBS -lgd -lpng -lz -lm"
1584 AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no)
1585 CFLAGS="$old_CFLAGS"
1586 LDFLAGS="$old_LDFLAGS"
1587 LIBS="$old_LIBS"
1588 else
1589 LIBGD=no
1590 fi
1591 AC_MSG_RESULT($LIBGD)
1592 AC_SUBST(LIBGD)
1594 dnl check for the size of 'long double'.
1595 AC_CHECK_SIZEOF(long double, 0)
1596 sizeof_long_double=$ac_cv_sizeof_long_double
1597 AC_SUBST(sizeof_long_double)
1599 ### End of automated tests.
1600 ### Now run sysdeps configure fragments.
1602 # sysdeps configure fragments may set these with files to be linked below.
1603 libc_link_dests=
1604 libc_link_sources=
1606 # They also can set these variables.
1607 use_ldconfig=no
1608 ldd_rewrite_script=no
1609 libc_cv_sysconfdir=$sysconfdir
1610 libc_cv_gcc_unwind_find_fde=no
1612 # Iterate over all the sysdep directories we will use, running their
1613 # configure fragments, and looking for a uname implementation.
1614 uname=
1615 for dir in $sysnames; do
1616 case $dir in
1617 /*) dest=$dir ;;
1618 *) dest=$srcdir/$dir ;;
1619 esac
1620 if test -r $dest/configure; then
1621 AC_MSG_RESULT(running configure fragment for $dest)
1622 . $dest/configure
1623 fi
1624 [
1625 if test -z "$uname"; then
1626 if test -r $dest/uname.c ||
1627 test -r $dest/uname.S ||
1628 { test -r $dest/syscalls.list &&
1629 grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then
1630 uname=$dir
1631 fi
1632 fi
1633 ]dnl
1634 done
1636 if test x$libc_cv_gcc_unwind_find_fde = xyes; then
1637 AC_DEFINE(EXPORT_UNWIND_FIND_FDE)
1638 fi
1639 AC_SUBST(libc_cv_gcc_unwind_find_fde)
1641 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
1643 # If we will use the generic uname implementation, we must figure out what
1644 # it will say by examining the system, and write the results in config-name.h.
1645 if test "$uname" = "sysdeps/generic"; then
1647 changequote(,)dnl
1648 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
1649 changequote([,])dnl
1650 if test $uname_sysname != $config_os; then
1651 config_release=`echo $config_os | sed s/$uname_sysname//`
1652 fi
1653 dnl
1654 AC_DEFUN(LIBC_KERNEL_ID, [dnl
1655 if test -r /vmunix; then
1656 kernel_id=`strings /vmunix | grep UNIX`
1657 elif test -r /dynix; then
1658 kernel_id=`strings /dynix | grep DYNIX`
1659 else
1660 kernel_id=
1661 fi
1662 ])dnl
1664 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
1665 AC_REQUIRE([LIBC_KERNEL_ID])dnl
1666 changequote(,)dnl
1667 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
1668 changequote([,])dnl
1669 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
1670 != x$config_release; then
1671 # The configuration release is a substring of the kernel release.
1672 libc_cv_uname_release=$kernel_release
1673 elif test x$config_release != x; then
1674 libc_cv_uname_release=$config_release
1675 elif test x$kernel_release != x; then
1676 libc_cv_uname_release=$kernel_release
1677 else
1678 libc_cv_uname_release=unknown
1679 fi])
1680 uname_release="$libc_cv_uname_release"
1682 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
1683 AC_REQUIRE([LIBC_KERNEL_ID])dnl
1684 changequote(,)dnl
1685 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
1686 changequote([,])dnl
1687 if test -n "$kernel_version"; then
1688 libc_cv_uname_version="$kernel_version"
1689 else
1690 libc_cv_uname_version=unknown
1691 fi])
1692 uname_version="$libc_cv_uname_version"
1694 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
1695 config_uname=config-name.h:config-name.in
1696 else
1697 # For non-generic uname, we don't need to create config-name.h at all.
1698 config_uname=
1699 fi
1701 dnl This is tested by existing code and it's simpler to avoid changing it.
1702 AC_DEFINE(USE_IN_LIBIO)
1704 # Test for old glibc 2.0.x headers so that they can be removed properly
1705 # Search only in includedir.
1706 AC_MSG_CHECKING(for old glibc 2.0.x headers)
1707 if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
1708 then
1709 old_glibc_headers=yes
1710 else
1711 old_glibc_headers=no
1712 fi
1713 AC_MSG_RESULT($old_glibc_headers)
1714 if test ${old_glibc_headers} = yes; then
1715 AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will)
1716 AC_MSG_WARN(*** be removed.)
1717 fi
1718 AC_SUBST(old_glibc_headers)
1720 AC_SUBST(libc_cv_slibdir)
1721 AC_SUBST(libc_cv_localedir)
1722 AC_SUBST(libc_cv_sysconfdir)
1723 AC_SUBST(libc_cv_rootsbindir)
1725 AC_SUBST(use_ldconfig)
1726 AC_SUBST(ldd_rewrite_script)
1728 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) AC_SUBST(xcoff)
1729 if test $gnu_ld = yes; then
1730 AC_DEFINE(HAVE_GNU_LD)
1731 fi
1732 if test $gnu_as = yes; then
1733 AC_DEFINE(HAVE_GNU_AS)
1734 fi
1735 if test $elf = yes; then
1736 AC_DEFINE(HAVE_ELF)
1737 fi
1738 if test $xcoff = yes; then
1739 AC_DEFINE(HAVE_XCOFF)
1740 fi
1742 AC_SUBST(static)
1743 AC_SUBST(shared)
1744 if test $shared = default; then
1745 if test $gnu_ld = yes; then
1746 shared=$elf
1747 else
1748 # For now we do not assume shared libs are available. In future more
1749 # tests might become available.
1750 shared=no
1751 fi
1752 fi
1754 AC_CACHE_CHECK([whether -fPIC is default], pic_default,
1755 [pic_default=yes
1756 cat > conftest.c <<EOF
1757 #if defined __PIC__ || defined __pic__ || defined PIC || defined pic
1758 # error PIC is default.
1759 #endif
1760 EOF
1761 if eval "${CC-cc} -S conftest.c 2>&AC_FD_CC 1>&AC_FD_CC"; then
1762 pic_default=no
1763 fi
1764 rm -f conftest.*])
1765 AC_SUBST(pic_default)
1767 AC_SUBST(profile)
1768 AC_SUBST(omitfp)
1769 AC_SUBST(bounded)
1770 AC_SUBST(static_nss)
1771 AC_SUBST(nopic_initfini)
1773 AC_SUBST(DEFINES)
1775 case "$add_ons" in
1776 *door*) linux_doors=yes ;;
1777 *) linux_doors=no ;;
1778 esac
1779 AC_SUBST(linux_doors)
1781 dnl See sysdeps/mach/configure.in for this variable.
1782 AC_SUBST(mach_interface_list)
1784 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
1785 config_makefile=
1786 else
1787 config_makefile=Makefile
1788 fi
1790 VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h`
1791 RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h`
1792 AC_SUBST(VERSION)
1793 AC_SUBST(RELEASE)
1795 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, [
1796 case $CONFIG_FILES in *config.make*)
1797 echo "$config_vars" >> config.make;;
1798 esac
1799 test -d bits || mkdir bits], [config_vars='$config_vars'])