| blob | 72e15579aeabe79e56e06fa30e11c75ad94eea65 |
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 \([egcygnustpi-]*[0-9.]*\)], [3.[2-9]*],
582 critic_missing="$critic_missing gcc")
583 AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version,
584 [GNU Make[^0-9]*\([0-9][0-9.]*\)],
585 [3.79* | 3.[89]*], critic_missing="$critic_missing make")
588 if test -n "$critic_missing"; then
589 AC_MSG_ERROR([
590 *** These critical programs are missing or too old:$critic_missing
591 *** Check the INSTALL file for required versions.])
592 fi
595 AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version,
596 [GNU gettext.* \([0-9]*\.[0-9.]*\)],
597 [0.10.3[6-9]* | 0.10.[4-9][0-9]* | 0.1[1-9]* | 0.[2-9][0-9]* | [1-9].*],
598 MSGFMT=: aux_missing="$aux_missing msgfmt")
599 AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
600 [GNU texinfo.* \([0-9][0-9.]*\)],
601 [4.*],
602 MAKEINFO=: aux_missing="$aux_missing makeinfo")
603 AC_CHECK_PROG_VER(SED, sed, --version,
604 [GNU sed version \([0-9]*\.[0-9.]*\)],
605 [3.0[2-9]*|3.[1-9]*|[4-9]*],
606 SED=: aux_missing="$aux_missing sed")
608 AC_PROG_CC_LOCAL
609 AC_CANONICAL_BUILD
610 if test $host != $build; then
611 AC_CHECK_PROGS(BUILD_CC, gcc cc)
612 fi
613 AC_SUBST(cross_compiling)
614 AC_PROG_CPP
615 LIBC_PROG_BINUTILS
616 AC_CHECK_TOOL(MIG, mig, MISSING)
618 # Accept binutils 2.10.1 or newer (and also any ia64 2.9 version)
619 # XXX Commented out because it filters out too many good versions.
620 # XXX --drepper
621 # AC_CHECK_PROG_VER(AS, $AS, --version,
622 # [GNU assembler.* \([0-9]*\.[0-9.]*\(-ia64-[0-9]*\)*\)],
623 # [2.10.[1-9]* | 2.1[1-9]* | 2.9-ia64-*], AS=: critic_missing=t)
625 test -n "$aux_missing" && AC_MSG_WARN([
626 *** These auxiliary programs are missing or too old:$aux_missing
627 *** some features will be disabled.
628 *** Check the INSTALL file for required versions.])
630 # glibcbug.in wants to know the compiler version.
631 CCVERSION=`$CC -v 2>&1 | sed -n 's/gcc version //p'`
632 AC_SUBST(CCVERSION)
634 # if using special system headers, find out the compiler's sekrit
635 # header directory and add that to the list. NOTE: Only does the right
636 # thing on a system that doesn't need fixincludes. (Not presently a problem.)
637 if test -n "$sysheaders"; then
638 ccheaders=`$CC -print-file-name=include`
639 SYSINCLUDES="-nostdinc -isystem $ccheaders -isystem $sysheaders"
640 fi
641 AC_SUBST(SYSINCLUDES)
643 # check if ranlib is necessary
644 AC_CACHE_CHECK(whether ranlib is necessary, libc_cv_ranlib_necessary, [dnl
645 cat > conftest.c <<EOF
646 int a;
647 char b;
648 void c(void) {}
649 EOF
650 $CC $CFLAGS -c conftest.c
651 $AR cr conftest.a conftest.c
652 cp conftest.a conftest2.a
653 $RANLIB conftest.a
654 if cmp -s conftest.a conftest2.a; then
655 libc_cv_ranlib_necessary=no
656 else
657 libc_cv_ranlib_necessary=yes
658 fi
659 rm -rf conftest*])
660 if test "$libc_cv_ranlib_necessary" = no; then
661 RANLIB=:
662 fi
664 # Test if LD_LIBRARY_PATH contains the notation for the current directory
665 # since this would lead to problems installing/building glibc.
666 # LD_LIBRARY_PATH contains the current directory if one of the following
667 # is true:
668 # - one of the terminals (":" and ";") is the first or last sign
669 # - two terminals occur directly after each other
670 # - the path contains an element with a dot in it
671 AC_MSG_CHECKING(LD_LIBRARY_PATH variable)
672 changequote(,)dnl
673 case ${LD_LIBRARY_PATH} in
674 [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
675 ld_library_path_setting="contains current directory"
676 ;;
677 *)
678 ld_library_path_setting="ok"
679 ;;
680 esac
681 changequote([,])dnl
682 AC_MSG_RESULT($ld_library_path_setting)
683 if test "$ld_library_path_setting" != "ok"; then
684 AC_MSG_ERROR([
685 *** LD_LIBRARY_PATH shouldn't contain the current directory when
686 *** building glibc. Please change the environment variable
687 *** and run configure again.])
688 fi
690 AC_CACHE_CHECK(whether GCC supports -static-libgcc, libc_cv_gcc_static_libgcc, [dnl
691 if $CC -v -static-libgcc 2>&1 | grep -q 'unrecognized option.*static-libgcc'; then
692 libc_cv_gcc_static_libgcc=
693 else
694 libc_cv_gcc_static_libgcc=-static-libgcc
695 fi])
696 AC_SUBST(libc_cv_gcc_static_libgcc)
698 AC_PATH_PROG(BASH, bash, no)
699 if test "$BASH" != no &&
700 $BASH -c 'test "$BASH_VERSINFO" \
701 && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
702 libc_cv_have_bash2=yes
703 else
704 libc_cv_have_bash2=no
705 fi
706 AC_SUBST(libc_cv_have_bash2)
708 dnl We need a ksh compatible shell for tzselect.
709 if test "$BASH" = no; then
710 AC_PATH_PROG(KSH, ksh, no)
711 if test "$KSH" = no; then
712 libc_cv_have_ksh=no
713 else
714 libc_cv_have_ksh=yes
715 fi
716 else
717 KSH="$BASH"
718 AC_SUBST(KSH)
719 libc_cv_have_ksh=yes
720 fi
721 AC_SUBST(libc_cv_have_ksh)
723 AC_PROG_AWK
724 AC_PATH_PROG(PERL, perl, no)
725 if test "$PERL" != no &&
726 (eval `$PERL -V:apiversion`; test `expr "$apiversion" \< 5` -ne 0); then
727 PERL=no
728 fi
729 AC_PATH_PROG(INSTALL_INFO, install-info, no,
730 $PATH:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin)
731 if test "$INSTALL_INFO" != "no"; then
732 AC_CACHE_CHECK(for old Debian install-info, libc_cv_old_debian_install_info,
733 [mkdir conftest.d
734 # There is a hard ^_ on the next line. I am open to better ideas.
735 (echo '\x1f'
736 echo 'File: dir Node: Top This is the top of the INFO tree'
737 echo '* Menu:') >conftest.d/dir
738 (echo 'INFO-DIR-SECTION i-d-s works'
739 echo 'START-INFO-DIR-ENTRY'
740 echo '* Prog: (prog). Program.'
741 echo 'END-INFO-DIR-ENTRY') >conftest.d/prog.info
742 if $INSTALL_INFO --info-dir=conftest.d conftest.d/prog.info >&AC_FD_CC 2>&1
743 then
744 if grep -s 'i-d-s works' conftest.d/dir >/dev/null
745 then libc_cv_old_debian_install_info=no
746 else libc_cv_old_debian_install_info=yes
747 fi
748 else libc_cv_old_debian_install_info=no testfailed=t
749 fi
750 rm -fr conftest.d])
751 if test -n "$testfailed"
752 then AC_MSG_WARN([install-info errored out, check config.log])
753 fi
754 OLD_DEBIAN_INSTALL_INFO=$libc_cv_old_debian_install_info
755 fi
756 AC_SUBST(OLD_DEBIAN_INSTALL_INFO)
758 AC_PATH_PROG(BISON, bison, no, $PATH:/usr/local/bin:/usr/bin:/bin)
760 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
761 echo '#include <stddef.h>
762 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
763 if eval "$ac_cpp conftest.c 2>/dev/null" \
764 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
765 libc_cv_signed_size_t=no
766 else
767 libc_cv_signed_size_t=yes
768 fi
769 rm -f conftest*])
770 if test $libc_cv_signed_size_t = yes; then
771 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
772 cat >> confdefs.h <<\EOF
773 #undef __SIZE_TYPE__
774 #define __SIZE_TYPE__ unsigned
775 EOF
776 fi
778 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
779 AC_TRY_COMPILE(dnl
780 [#define __need_size_t
781 #define __need_wchar_t
782 #include <stddef.h>
783 #define __need_NULL
784 #include <stddef.h>], [size_t size; wchar_t wchar;
785 #ifdef offsetof
786 #error stddef.h ignored __need_*
787 #endif
788 if (&size == NULL || &wchar == NULL) abort ();],
789 libc_cv_friendly_stddef=yes,
790 libc_cv_friendly_stddef=no)])
791 if test $libc_cv_friendly_stddef = yes; then
792 config_vars="$config_vars
793 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
794 fi
796 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
797 libc_cv_need_minus_P, [dnl
798 cat > conftest.S <<EOF
799 #include "confdefs.h"
800 /* Nothing whatsoever. */
801 EOF
802 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
803 libc_cv_need_minus_P=no
804 else
805 libc_cv_need_minus_P=yes
806 fi
807 rm -f conftest*])
808 if test $libc_cv_need_minus_P = yes; then
809 config_vars="$config_vars
810 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
811 fi
813 AC_MSG_CHECKING(whether .text pseudo-op must be used)
814 AC_CACHE_VAL(libc_cv_dot_text, [dnl
815 cat > conftest.s <<EOF
816 .text
817 EOF
818 libc_cv_dot_text=
819 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
820 libc_cv_dot_text=.text
821 fi
822 rm -f conftest*])
823 if test -z "$libc_cv_dot_text"; then
824 AC_MSG_RESULT(no)
825 else
826 AC_MSG_RESULT(yes)
827 fi
829 AC_CACHE_CHECK(for assembler global-symbol directive,
830 libc_cv_asm_global_directive, [dnl
831 libc_cv_asm_global_directive=UNKNOWN
832 for ac_globl in .globl .global .EXPORT; do
833 cat > conftest.s <<EOF
834 ${libc_cv_dot_text}
835 ${ac_globl} foo
836 foo:
837 EOF
838 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
839 libc_cv_asm_global_directive=${ac_globl}
840 fi
841 rm -f conftest*
842 test $libc_cv_asm_global_directive != UNKNOWN && break
843 done])
844 if test $libc_cv_asm_global_directive = UNKNOWN; then
845 AC_MSG_ERROR(cannot determine asm global directive)
846 else
847 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
848 fi
850 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
851 cat > conftest.s <<EOF
852 ${libc_cv_dot_text}
853 foo:
854 .set glibc_conftest_frobozz,foo
855 $libc_cv_asm_global_directive glibc_conftest_frobozz
856 EOF
857 # The alpha-dec-osf1 assembler gives only a warning for `.set'
858 # (but it doesn't work), so we must do a linking check to be sure.
859 cat > conftest1.c <<\EOF
860 extern int glibc_conftest_frobozz;
861 main () { printf ("%d\n", glibc_conftest_frobozz); }
862 EOF
863 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
864 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
865 libc_cv_asm_set_directive=yes
866 else
867 libc_cv_asm_set_directive=no
868 fi
869 rm -f conftest*])
870 if test $libc_cv_asm_set_directive = yes; then
871 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
872 fi
874 # The Aix ld uses global .symbol_names instead of symbol_names.
875 case "$os" in
876 aix4.3*)
877 AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME)
878 esac
880 AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive,
881 [cat > conftest.s <<EOF
882 ${libc_cv_dot_text}
883 _sym:
884 .symver _sym,sym@VERS
885 EOF
886 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
887 libc_cv_asm_symver_directive=yes
888 else
889 libc_cv_asm_symver_directive=no
890 fi
891 rm -f conftest*])
892 AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl
893 if test $libc_cv_asm_symver_directive = yes; then
894 cat > conftest.s <<EOF
895 ${libc_cv_dot_text}
896 _sym:
897 .symver _sym,sym@VERS
898 EOF
899 cat > conftest.map <<EOF
900 VERS_1 {
901 global: sym;
902 };
904 VERS_2 {
905 global: sym;
906 } VERS_1;
907 EOF
908 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
909 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o
910 -nostartfiles -nostdlib
911 -Wl,--version-script,conftest.map
912 1>&AC_FD_CC]);
913 then
914 libc_cv_ld_version_script_option=yes
915 else
916 libc_cv_ld_version_script_option=no
917 fi
918 else
919 libc_cv_ld_version_script_option=no
920 fi
921 else
922 libc_cv_ld_version_script_option=no
923 fi
924 rm -f conftest*])
925 if test $shared != no &&
926 test $libc_cv_asm_symver_directive = yes &&
927 test $libc_cv_ld_version_script_option = yes &&
928 test $enable_versioning = yes; then
929 VERSIONING=yes
930 AC_DEFINE(DO_VERSIONING)
931 else
932 VERSIONING=no
933 fi
934 AC_SUBST(VERSIONING)
936 if test $elf = yes && test $shared != no && test $VERSIONING = no; then
937 echo "\
938 *** WARNING: You should not compile GNU libc without versioning. Not using
939 *** versioning will introduce incompatibilities so that old binaries
940 *** will not run anymore.
941 *** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)."
942 fi
943 if test $elf = yes; then
944 AC_CACHE_CHECK(for .previous assembler directive,
945 libc_cv_asm_previous_directive, [dnl
946 cat > conftest.s <<EOF
947 .section foo_section
948 .previous
949 EOF
950 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
951 libc_cv_asm_previous_directive=yes
952 else
953 libc_cv_asm_previous_directive=no
954 fi
955 rm -f conftest*])
956 if test $libc_cv_asm_previous_directive = yes; then
957 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
958 else
959 AC_CACHE_CHECK(for .popsection assembler directive,
960 libc_cv_asm_popsection_directive, [dnl
961 cat > conftest.s <<EOF
962 .pushsection foo_section
963 .popsection
964 EOF
965 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
966 libc_cv_asm_popsection_directive=yes
967 else
968 libc_cv_asm_popsection_directive=no
969 fi
970 rm -f conftest*])
971 if test $libc_cv_asm_popsection_directive = yes; then
972 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
973 fi
974 fi
975 AC_CACHE_CHECK(for .protected and .hidden assembler directive,
976 libc_cv_asm_protected_directive, [dnl
977 cat > conftest.s <<EOF
978 .protected foo
979 foo:
980 .hidden bar
981 bar:
982 EOF
983 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
984 libc_cv_asm_protected_directive=yes
985 else
986 libc_cv_asm_protected_directive=no
987 fi
988 rm -f conftest*])
989 AC_SUBST(libc_cv_asm_protected_directive)
990 AC_DEFINE(HAVE_PROTECTED)
991 AC_DEFINE(HAVE_HIDDEN)
993 if test $libc_cv_asm_protected_directive = yes; then
994 AC_CACHE_CHECK(whether __attribute__((visibility())) is supported,
995 libc_cv_visibility_attribute,
996 [cat > conftest.c <<EOF
997 int foo __attribute__ ((visibility ("hidden"))) = 1;
998 int bar __attribute__ ((visibility ("protected"))) = 1;
999 EOF
1000 libc_cv_visibility_attribute=no
1001 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1002 if grep '\.hidden.*foo' conftest.s >/dev/null; then
1003 if grep '\.protected.*bar' conftest.s >/dev/null; then
1004 libc_cv_visibility_attribute=yes
1005 fi
1006 fi
1007 fi
1008 rm -f conftest.[cs]
1009 ])
1010 if test $libc_cv_visibility_attribute = yes; then
1011 AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE)
1012 fi
1013 fi
1015 if test $libc_cv_visibility_attribute = yes; then
1016 AC_CACHE_CHECK(for broken __attribute__((visibility())),
1017 libc_cv_broken_visibility_attribute,
1018 [cat > conftest.c <<EOF
1019 int foo (int x);
1020 int bar (int x) __asm__ ("foo") __attribute__ ((visibility ("hidden")));
1021 int bar (int x) { return x; }
1022 EOF
1023 libc_cv_broken_visibility_attribute=yes
1024 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1025 changequote(,)dnl
1026 if grep '\.hidden[ _]foo' conftest.s >/dev/null; then
1027 changequote([,])dnl
1028 libc_cv_broken_visibility_attribute=no
1029 fi
1030 fi
1031 rm -f conftest.c conftest.s
1032 ])
1033 if test $libc_cv_broken_visibility_attribute = yes; then
1034 AC_DEFINE(HAVE_BROKEN_VISIBILITY_ATTRIBUTE)
1035 fi
1036 fi
1038 AC_CACHE_CHECK(for broken __attribute__((alias())),
1039 libc_cv_broken_alias_attribute,
1040 [cat > conftest.c <<EOF
1041 extern int foo (int x) __asm ("xyzzy");
1042 int bar (int x) { return x; }
1043 extern __typeof (bar) foo __attribute ((weak, alias ("bar")));
1044 extern int dfoo;
1045 extern __typeof (dfoo) dfoo __asm ("abccb");
1046 int dfoo = 1;
1047 EOF
1048 libc_cv_broken_alias_attribute=yes
1049 if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
1050 if grep 'xyzzy' conftest.s >/dev/null &&
1051 grep 'abccb' conftest.s >/dev/null; then
1052 libc_cv_broken_alias_attribute=no
1053 fi
1054 fi
1055 rm -f conftest.c conftest.s
1056 ])
1057 if test $libc_cv_broken_alias_attribute = yes; then
1058 AC_DEFINE(HAVE_BROKEN_ALIAS_ATTRIBUTE)
1059 fi
1061 if test $libc_cv_visibility_attribute = yes -a $gnu_ld = yes; then
1062 AC_CACHE_CHECK(whether to put _rtld_local into .sdata section,
1063 libc_cv_have_sdata_section,
1064 [echo "int i;" > conftest.c
1065 libc_cv_have_sdata_section=no
1066 if ${CC-cc} -shared -Wl,--verbose conftest.c -o conftest.so 2>&1 \
1067 | grep '\.sdata' >/dev/null; then
1068 libc_cv_have_sdata_section=yes
1069 fi
1070 rm -f conftest.c conftest.so
1071 ])
1072 if test $libc_cv_have_sdata_section = yes; then
1073 AC_DEFINE(HAVE_SDATA_SECTION)
1074 fi
1075 fi
1077 AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
1078 libc_cv_initfinit_array, [dnl
1079 cat > conftest.c <<EOF
1080 int _start (void) { return 0; }
1081 int __start (void) { return 0; }
1082 int foo (void) { return 1; }
1083 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
1084 EOF
1085 if AC_TRY_COMMAND([${CC-cc} -o conftest conftest.c
1086 -static -nostartfiles -nostdlib 1>&AC_FD_CC])
1087 then
1088 if readelf -S conftest | fgrep INIT_ARRAY > /dev/null; then
1089 libc_cv_initfinit_array=yes
1090 else
1091 libc_cv_initfinit_array=no
1092 fi
1093 else
1094 libc_cv_initfinit_array=no
1095 fi
1096 rm -f conftest*])
1097 AC_SUBST(libc_cv_initfinit_array)
1098 if test $libc_cv_initfinit_array = yes; then
1099 AC_DEFINE(HAVE_INITFINI_ARRAY)
1100 fi
1102 AC_CACHE_CHECK(for -z nodelete option,
1103 libc_cv_z_nodelete, [dnl
1104 cat > conftest.c <<EOF
1105 int _start (void) { return 42; }
1106 EOF
1107 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1108 -nostartfiles -nostdlib
1109 -Wl,--enable-new-dtags,-z,nodelete 1>&AC_FD_CC])
1110 then
1111 libc_cv_z_nodelete=yes
1112 else
1113 libc_cv_z_nodelete=no
1114 fi
1115 rm -f conftest*])
1116 AC_SUBST(libc_cv_z_nodelete)
1118 AC_CACHE_CHECK(for -z nodlopen option,
1119 libc_cv_z_nodlopen, [dnl
1120 cat > conftest.c <<EOF
1121 int _start (void) { return 42; }
1122 EOF
1123 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1124 -nostartfiles -nostdlib
1125 -Wl,--enable-new-dtags,-z,nodlopen 1>&AC_FD_CC])
1126 then
1127 libc_cv_z_nodlopen=yes
1128 else
1129 libc_cv_z_nodlopen=no
1130 fi
1131 rm -f conftest*])
1132 AC_SUBST(libc_cv_z_nodlopen)
1134 AC_CACHE_CHECK(for -z initfirst option,
1135 libc_cv_z_initfirst, [dnl
1136 cat > conftest.c <<EOF
1137 int _start (void) { return 42; }
1138 EOF
1139 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1140 -nostartfiles -nostdlib
1141 -Wl,--enable-new-dtags,-z,initfirst 1>&AC_FD_CC])
1142 then
1143 libc_cv_z_initfirst=yes
1144 else
1145 libc_cv_z_initfirst=no
1146 fi
1147 rm -f conftest*])
1148 AC_SUBST(libc_cv_z_initfirst)
1150 AC_CACHE_CHECK(for -Bgroup option,
1151 libc_cv_Bgroup, [dnl
1152 cat > conftest.c <<EOF
1153 int _start (void) { return 42; }
1154 EOF
1155 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c -Wl,-Bgroup -nostdlib 1>&AC_FD_CC])
1156 then
1157 libc_cv_Bgroup=yes
1158 else
1159 libc_cv_Bgroup=no
1160 fi
1161 rm -f conftest*])
1162 AC_SUBST(libc_cv_Bgroup)
1164 AC_CACHE_CHECK(for -z combreloc,
1165 libc_cv_z_combreloc, [dnl
1166 cat > conftest.c <<EOF
1167 extern int bar (int);
1168 extern int mumble;
1169 int foo (void) { return bar (mumble); }
1170 EOF
1171 if AC_TRY_COMMAND([${CC-cc} -shared -o conftest.so conftest.c
1172 -nostdlib -nostartfiles
1173 -Wl,-z,combreloc 1>&AC_FD_CC])
1174 then
1175 dnl The following test is a bit weak. We must use a tool which can test
1176 dnl cross-platform since the gcc used can be a cross compiler. Without
1177 dnl introducing new options this is not easily doable. Instead use a tool
1178 dnl which always is cross-platform: readelf. To detect whether -z combreloc
1179 dnl look for a section named .rel.dyn.
1180 if readelf -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then
1181 libc_cv_z_combreloc=yes
1182 else
1183 libc_cv_z_combreloc=no
1184 fi
1185 else
1186 libc_cv_z_combreloc=no
1187 fi
1188 rm -f conftest*])
1189 if test "$libc_cv_z_combreloc" = yes; then
1190 AC_DEFINE(HAVE_Z_COMBRELOC)
1191 fi
1192 fi
1193 AC_SUBST(libc_cv_z_combreloc)
1195 if test $elf != yes; then
1196 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
1197 [AC_TRY_COMPILE(, [asm (".section .init");
1198 asm (".section .fini");
1199 asm ("${libc_cv_dot_text}");],
1200 libc_cv_have_initfini=yes,
1201 libc_cv_have_initfini=no)])
1202 AC_SUBST(libc_cv_have_initfini)dnl
1203 if test $libc_cv_have_initfini = yes; then
1204 AC_DEFINE(HAVE_INITFINI)
1205 fi
1206 fi
1208 if test $elf = yes -a $gnu_ld = yes; then
1209 AC_CACHE_CHECK(whether cc puts quotes around section names,
1210 libc_cv_have_section_quotes,
1211 [cat > conftest.c <<EOF
1212 static const int foo
1213 __attribute__ ((section ("bar"))) = 1;
1214 EOF
1215 if ${CC-cc} -S conftest.c -o conftest.s; then
1216 if grep '\.section.*"bar"' conftest.s >/dev/null; then
1217 libc_cv_have_section_quotes=yes
1218 else
1219 libc_cv_have_section_quotes=no
1220 fi
1221 else
1222 libc_cv_have_section_quotes=unknown
1223 fi
1224 rm -f conftest.[cs]
1225 ])
1226 if test $libc_cv_have_section_quotes = yes; then
1227 AC_DEFINE(HAVE_SECTION_QUOTES)
1228 fi
1229 fi
1231 dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
1232 AC_DEFUN(AC_CHECK_ASM_UNDERSCORE,
1233 [cat > conftest.$ac_ext <<EOF
1234 dnl This sometimes fails to find confdefs.h, for some reason.
1235 dnl [#]line __oline__ "[$]0"
1236 [#]line __oline__ "configure"
1237 #include "confdefs.h"
1238 void underscore_test(void) {
1239 return; }
1240 EOF
1241 if AC_TRY_EVAL(ac_compile); then
1242 if grep _underscore_test conftest* >/dev/null; then
1243 ifelse([$1], , :, [rm -f conftest*
1244 $1])
1245 else
1246 ifelse([$2], , , [rm -f conftest*
1247 $2])
1248 fi
1249 else
1250 echo "configure: failed program was:" >&AC_FD_CC
1251 cat conftest.$ac_ext >&AC_FD_CC
1252 ifelse([$2], , , [rm -f conftest*
1253 $2])
1254 fi
1255 rm -f conftest*])
1257 if test $elf = yes; then
1258 libc_cv_asm_underscores=no
1259 else
1260 if test $ac_cv_prog_cc_works = yes; then
1261 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
1262 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
1263 libc_cv_asm_underscores=yes,
1264 libc_cv_asm_underscores=no)])
1265 else
1266 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
1267 [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes,
1268 libc_cv_asm_underscores=no)])
1269 fi
1270 fi
1271 if test $libc_cv_asm_underscores = no; then
1272 AC_DEFINE(NO_UNDERSCORES)
1273 fi
1275 if test $elf = yes; then
1276 libc_cv_weak_symbols=yes
1277 fi
1279 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
1280 [dnl
1281 cat > conftest.s <<EOF
1282 ${libc_cv_dot_text}
1283 ${libc_cv_asm_global_directive} foo
1284 foo:
1285 .weak foo
1286 .weak bar; bar = foo
1287 EOF
1288 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
1289 libc_cv_asm_weak_directive=yes
1290 else
1291 libc_cv_asm_weak_directive=no
1292 fi
1293 rm -f conftest*])
1295 if test $libc_cv_asm_weak_directive = no; then
1296 AC_CACHE_CHECK(for assembler .weakext directive,
1297 libc_cv_asm_weakext_directive,
1298 [dnl
1299 cat > conftest.s <<EOF
1300 ${libc_cv_dot_text}
1301 ${libc_cv_asm_global_directive} foo
1302 foo:
1303 .weakext bar foo
1304 .weakext baz
1305 ${libc_cv_asm_global_directive} baz
1306 baz:
1307 EOF
1308 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
1309 libc_cv_asm_weakext_directive=yes
1310 else
1311 libc_cv_asm_weakext_directive=no
1312 fi
1313 rm -f conftest*])
1315 fi # no .weak
1317 if test $libc_cv_asm_weak_directive = yes; then
1318 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
1319 elif test $libc_cv_asm_weakext_directive = yes; then
1320 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
1321 fi
1323 dnl The standard hppa assembler uses `;' to start comments and `!'
1324 dnl as a line separator. CRIS uses `;' to start comments and `@' for
1325 dnl line separator.
1326 case "${host_cpu}-${host_os}" in
1327 cris*)
1328 libc_cv_asm_line_sep='@'
1329 AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
1330 ;;
1331 hppa*linux*)
1332 AC_CACHE_CHECK(for assembler line separator,
1333 libc_cv_asm_line_sep, [dnl
1334 cat > conftest.s <<EOF
1335 nop ; is_old_puffin
1336 EOF
1337 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
1338 libc_cv_asm_line_sep='!'
1339 else
1340 if test -z "$enable_hacker_mode"; then
1341 echo "*** You need a newer assembler to compile glibc"
1342 rm -f conftest*
1343 exit 1
1344 fi
1345 libc_cv_asm_line_sep=';'
1346 fi
1347 rm -f conftest*])
1348 AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
1349 ;;
1350 esac
1352 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
1353 cat > conftest.c <<\EOF
1354 _start () {}
1355 int __eh_pc;
1356 __throw () {}
1357 EOF
1358 dnl No \ in command here because it ends up inside ''.
1359 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
1360 -nostdlib -nostartfiles -Wl,--no-whole-archive
1361 -o conftest conftest.c 1>&AC_FD_CC]); then
1362 libc_cv_ld_no_whole_archive=yes
1363 else
1364 libc_cv_ld_no_whole_archive=no
1365 fi
1366 rm -f conftest*])
1367 if test $libc_cv_ld_no_whole_archive = yes; then
1368 no_whole_archive=-Wl,--no-whole-archive
1369 fi
1370 AC_SUBST(no_whole_archive)dnl
1372 AC_CACHE_CHECK(for gcc -fexceptions, libc_cv_gcc_exceptions, [dnl
1373 cat > conftest.c <<\EOF
1374 _start () {}
1375 int __eh_pc;
1376 __throw () {}
1377 EOF
1378 dnl No \ in command here because it ends up inside ''.
1379 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
1380 -nostdlib -nostartfiles -fexceptions
1381 -o conftest conftest.c 1>&AC_FD_CC]); then
1382 libc_cv_gcc_exceptions=yes
1383 else
1384 libc_cv_gcc_exceptions=no
1385 fi
1386 rm -f conftest*])
1387 if test $libc_cv_gcc_exceptions = yes; then
1388 exceptions=-fexceptions
1389 fi
1390 AC_SUBST(exceptions)dnl
1392 if test "$base_machine" = alpha ; then
1393 AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl
1394 cat > conftest.c <<\EOF
1395 foo () { }
1396 EOF
1397 dnl
1398 if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]);
1399 then
1400 libc_cv_gcc_alpha_ng_prefix=yes
1401 else
1402 libc_cv_gcc_alpha_ng_prefix=no
1403 fi
1404 rm -f conftest* ])
1405 if test $libc_cv_gcc_alpha_ng_prefix = yes ; then
1406 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$")
1407 else
1408 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "")
1409 fi
1410 fi
1412 if test "$host_cpu" = powerpc ; then
1413 # Check for a bug present in at least versions 2.8.x of GCC
1414 # and versions 1.0.x of EGCS.
1415 AC_CACHE_CHECK(whether clobbering cr0 causes problems,libc_cv_c_asmcr0_bug,[dnl
1416 AC_TRY_COMPILE([int tester(int x) { asm ("" : : : "cc"); return x & 123; }],,
1417 libc_cv_c_asmcr0_bug='no',
1418 libc_cv_c_asmcr0_bug='yes')])
1419 if test "$libc_cv_c_asmcr0_bug" != 'no'; then
1420 AC_DEFINE(BROKEN_PPC_ASM_CR0)
1421 fi
1422 fi
1424 AC_CACHE_CHECK(for DWARF2 unwind info support, libc_cv_gcc_dwarf2_unwind_info,
1425 [cat > conftest.c <<EOF
1426 #line __oline__ "configure"
1427 static char *__EH_FRAME_BEGIN__;
1428 _start ()
1429 {
1430 #ifdef CHECK__register_frame
1431 __register_frame (__EH_FRAME_BEGIN__);
1432 __deregister_frame (__EH_FRAME_BEGIN__);
1433 #endif
1434 #ifdef CHECK__register_frame_info
1435 __register_frame_info (__EH_FRAME_BEGIN__);
1436 __deregister_frame_info (__EH_FRAME_BEGIN__);
1437 #endif
1438 }
1439 int __eh_pc;
1440 __throw () {}
1441 /* FIXME: this is fragile. */
1442 malloc () {}
1443 strcmp () {}
1444 strlen () {}
1445 memcpy () {}
1446 memset () {}
1447 free () {}
1448 abort () {}
1449 __bzero () {}
1450 EOF
1451 dnl No \ in command here because it ends up inside ''.
1452 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
1453 -nostdlib -nostartfiles
1454 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1455 libc_cv_gcc_dwarf2_unwind_info=static
1456 else
1457 libc_cv_gcc_dwarf2_unwind_info=no
1458 fi
1459 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame_info
1460 -nostdlib -nostartfiles
1461 -o conftest conftest.c -lgcc -lgcc_eh >&AC_FD_CC]); then
1462 if ${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles \
1463 -o conftest conftest.c -lgcc -lgcc_eh -v 2>&1 >/dev/null \
1464 | grep -q -- --eh-frame-hdr; then
1465 libc_cv_gcc_dwarf2_unwind_info=no_registry_needed
1466 else
1467 libc_cv_gcc_dwarf2_unwind_info=static
1468 fi
1469 else
1470 libc_cv_gcc_dwarf2_unwind_info=no
1471 fi
1472 if test $libc_cv_gcc_dwarf2_unwind_info = no; then
1473 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -DCHECK__register_frame
1474 -nostdlib -nostartfiles
1475 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1476 libc_cv_gcc_dwarf2_unwind_info=yes
1477 else
1478 libc_cv_gcc_dwarf2_unwind_info=no
1479 fi
1480 fi
1481 rm -f conftest*])
1482 case $libc_cv_gcc_dwarf2_unwind_info in
1483 yes)
1484 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
1485 ;;
1486 static)
1487 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO)
1488 AC_DEFINE(HAVE_DWARF2_UNWIND_INFO_STATIC)
1489 ;;
1490 esac
1492 dnl Check whether compiler understands __builtin_expect.
1493 AC_CACHE_CHECK(for __builtin_expect, libc_cv_gcc_builtin_expect,
1494 [cat > conftest.c <<EOF
1495 #line __oline__ "configure"
1496 int foo (int a)
1497 {
1498 a = __builtin_expect (a, 10);
1499 return a == 10 ? 0 : 1;
1500 }
1501 EOF
1502 dnl No \ in command here because it ends up inside ''.
1503 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
1504 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1505 libc_cv_gcc_builtin_expect=yes
1506 else
1507 libc_cv_gcc_builtin_expect=no
1508 fi
1509 rm -f conftest*])
1510 if test "$libc_cv_gcc_builtin_expect" = yes; then
1511 AC_DEFINE(HAVE_BUILTIN_EXPECT)
1512 fi
1514 AC_CACHE_CHECK(for __builtin_memset, libc_cv_gcc_builtin_memset, [dnl
1515 cat > conftest.c <<\EOF
1516 void zero (void *x)
1517 {
1518 __builtin_memset (x, 0, 1000);
1519 }
1520 EOF
1521 dnl
1522 if AC_TRY_COMMAND([${CC-cc} -O3 -S conftest.c -o - | fgrep "memset" > /dev/null]);
1523 then
1524 libc_cv_gcc_builtin_memset=no
1525 else
1526 libc_cv_gcc_builtin_memset=yes
1527 fi
1528 rm -f conftest* ])
1529 if test "$libc_cv_gcc_builtin_memset" = yes ; then
1530 AC_DEFINE(HAVE_BUILTIN_MEMSET)
1531 fi
1533 dnl Check whether the compiler supports subtraction of local labels.
1534 AC_CACHE_CHECK(for local label subtraction, libc_cv_gcc_subtract_local_labels,
1535 [cat > conftest.c <<EOF
1536 changequote(,)dnl
1537 #line __oline__ "configure"
1538 int foo (int a)
1539 {
1540 static const int ar[] = { &&l1 - &&l1, &&l2 - &&l1 };
1541 void *p = &&l1 + ar[a];
1542 goto *p;
1543 l1:
1544 return 1;
1545 l2:
1546 return 2;
1547 }
1548 changequote([,])dnl
1549 EOF
1550 dnl No \ in command here because it ends up inside ''.
1551 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
1552 -o conftest conftest.c -lgcc >&AC_FD_CC]); then
1553 libc_cv_gcc_subtract_local_labels=yes
1554 else
1555 libc_cv_gcc_subtract_local_labels=no
1556 fi
1557 rm -f conftest*])
1558 if test "$libc_cv_gcc_subtract_local_labels" = yes; then
1559 AC_DEFINE(HAVE_SUBTRACT_LOCAL_LABELS)
1560 fi
1562 dnl Check whether the compiler supports the __thread keyword.
1563 AC_CACHE_CHECK([for __thread], libc_cv_gcc___thread,
1564 [cat > conftest.c <<EOF
1565 __thread int a = 42;
1566 EOF
1567 if AC_TRY_COMMAND([${CC-cc} $CFLAGS -c conftest.c >&AC_FD_CC]); then
1568 libc_cv_gcc___thread=yes
1569 else
1570 libc_cv_gcc___thread=no
1571 fi
1572 rm -f conftest*])
1573 if test "$libc_cv_gcc___thread" = yes; then
1574 AC_DEFINE(HAVE___THREAD)
1575 fi
1578 dnl Check whether we have the gd library available.
1579 AC_MSG_CHECKING(for libgd)
1580 if test "$with_gd" != "no"; then
1581 old_CFLAGS="$CFLAGS"
1582 CFLAGS="$CFLAGS $libgd_include"
1583 old_LDFLAGS="$LDFLAGS"
1584 LDFLAGS="$LDFLAGS $libgd_ldflags"
1585 old_LIBS="$LIBS"
1586 LIBS="$LIBS -lgd -lpng -lz -lm"
1587 AC_TRY_LINK([#include <gd.h>], [gdImagePng (0, 0)], LIBGD=yes, LIBGD=no)
1588 CFLAGS="$old_CFLAGS"
1589 LDFLAGS="$old_LDFLAGS"
1590 LIBS="$old_LIBS"
1591 else
1592 LIBGD=no
1593 fi
1594 AC_MSG_RESULT($LIBGD)
1595 AC_SUBST(LIBGD)
1597 dnl check for the size of 'long double'.
1598 AC_CHECK_SIZEOF(long double, 0)
1599 sizeof_long_double=$ac_cv_sizeof_long_double
1600 AC_SUBST(sizeof_long_double)
1602 ### End of automated tests.
1603 ### Now run sysdeps configure fragments.
1605 # sysdeps configure fragments may set these with files to be linked below.
1606 libc_link_dests=
1607 libc_link_sources=
1609 # They also can set these variables.
1610 use_ldconfig=no
1611 ldd_rewrite_script=no
1612 libc_cv_sysconfdir=$sysconfdir
1613 libc_cv_gcc_unwind_find_fde=no
1615 # Iterate over all the sysdep directories we will use, running their
1616 # configure fragments, and looking for a uname implementation.
1617 uname=
1618 for dir in $sysnames; do
1619 case $dir in
1620 /*) dest=$dir ;;
1621 *) dest=$srcdir/$dir ;;
1622 esac
1623 if test -r $dest/configure; then
1624 AC_MSG_RESULT(running configure fragment for $dest)
1625 . $dest/configure
1626 fi
1627 [
1628 if test -z "$uname"; then
1629 if test -r $dest/uname.c ||
1630 test -r $dest/uname.S ||
1631 { test -r $dest/syscalls.list &&
1632 grep '^uname[ ]' $dest/syscalls.list >/dev/null; }; then
1633 uname=$dir
1634 fi
1635 fi
1636 ]dnl
1637 done
1639 if test x$libc_cv_gcc_unwind_find_fde = xyes; then
1640 AC_DEFINE(EXPORT_UNWIND_FIND_FDE)
1641 fi
1642 AC_SUBST(libc_cv_gcc_unwind_find_fde)
1644 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
1646 # If we will use the generic uname implementation, we must figure out what
1647 # it will say by examining the system, and write the results in config-name.h.
1648 if test "$uname" = "sysdeps/generic"; then
1650 changequote(,)dnl
1651 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
1652 changequote([,])dnl
1653 if test $uname_sysname != $config_os; then
1654 config_release=`echo $config_os | sed s/$uname_sysname//`
1655 fi
1656 dnl
1657 AC_DEFUN(LIBC_KERNEL_ID, [dnl
1658 if test -r /vmunix; then
1659 kernel_id=`strings /vmunix | grep UNIX`
1660 elif test -r /dynix; then
1661 kernel_id=`strings /dynix | grep DYNIX`
1662 else
1663 kernel_id=
1664 fi
1665 ])dnl
1667 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
1668 AC_REQUIRE([LIBC_KERNEL_ID])dnl
1669 changequote(,)dnl
1670 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
1671 changequote([,])dnl
1672 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
1673 != x$config_release; then
1674 # The configuration release is a substring of the kernel release.
1675 libc_cv_uname_release=$kernel_release
1676 elif test x$config_release != x; then
1677 libc_cv_uname_release=$config_release
1678 elif test x$kernel_release != x; then
1679 libc_cv_uname_release=$kernel_release
1680 else
1681 libc_cv_uname_release=unknown
1682 fi])
1683 uname_release="$libc_cv_uname_release"
1685 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
1686 AC_REQUIRE([LIBC_KERNEL_ID])dnl
1687 changequote(,)dnl
1688 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
1689 changequote([,])dnl
1690 if test -n "$kernel_version"; then
1691 libc_cv_uname_version="$kernel_version"
1692 else
1693 libc_cv_uname_version=unknown
1694 fi])
1695 uname_version="$libc_cv_uname_version"
1697 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
1698 config_uname=config-name.h:config-name.in
1699 else
1700 # For non-generic uname, we don't need to create config-name.h at all.
1701 config_uname=
1702 fi
1704 dnl This is tested by existing code and it's simpler to avoid changing it.
1705 AC_DEFINE(USE_IN_LIBIO)
1707 # Test for old glibc 2.0.x headers so that they can be removed properly
1708 # Search only in includedir.
1709 AC_MSG_CHECKING(for old glibc 2.0.x headers)
1710 if eval test -f "${includedir}/elfclass.h" -a -f "${includedir}/fcntlbits.h"
1711 then
1712 old_glibc_headers=yes
1713 else
1714 old_glibc_headers=no
1715 fi
1716 AC_MSG_RESULT($old_glibc_headers)
1717 if test ${old_glibc_headers} = yes; then
1718 AC_MSG_WARN(*** During \"make install\" old headers from glibc 2.0.x will)
1719 AC_MSG_WARN(*** be removed.)
1720 fi
1721 AC_SUBST(old_glibc_headers)
1723 AC_SUBST(libc_cv_slibdir)
1724 AC_SUBST(libc_cv_localedir)
1725 AC_SUBST(libc_cv_sysconfdir)
1726 AC_SUBST(libc_cv_rootsbindir)
1728 AC_SUBST(use_ldconfig)
1729 AC_SUBST(ldd_rewrite_script)
1731 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) AC_SUBST(xcoff)
1732 if test $gnu_ld = yes; then
1733 AC_DEFINE(HAVE_GNU_LD)
1734 fi
1735 if test $gnu_as = yes; then
1736 AC_DEFINE(HAVE_GNU_AS)
1737 fi
1738 if test $elf = yes; then
1739 AC_DEFINE(HAVE_ELF)
1740 fi
1741 if test $xcoff = yes; then
1742 AC_DEFINE(HAVE_XCOFF)
1743 fi
1745 AC_SUBST(static)
1746 AC_SUBST(shared)
1747 if test $shared = default; then
1748 if test $gnu_ld = yes; then
1749 shared=$elf
1750 else
1751 # For now we do not assume shared libs are available. In future more
1752 # tests might become available.
1753 shared=no
1754 fi
1755 fi
1757 AC_CACHE_CHECK([whether -fPIC is default], pic_default,
1758 [pic_default=yes
1759 cat > conftest.c <<EOF
1760 #if defined __PIC__ || defined __pic__ || defined PIC || defined pic
1761 # error PIC is default.
1762 #endif
1763 EOF
1764 if eval "${CC-cc} -S conftest.c 2>&AC_FD_CC 1>&AC_FD_CC"; then
1765 pic_default=no
1766 fi
1767 rm -f conftest.*])
1768 AC_SUBST(pic_default)
1770 AC_SUBST(profile)
1771 AC_SUBST(omitfp)
1772 AC_SUBST(bounded)
1773 AC_SUBST(static_nss)
1774 AC_SUBST(nopic_initfini)
1776 AC_SUBST(DEFINES)
1778 case "$add_ons" in
1779 *door*) linux_doors=yes ;;
1780 *) linux_doors=no ;;
1781 esac
1782 AC_SUBST(linux_doors)
1784 dnl See sysdeps/mach/configure.in for this variable.
1785 AC_SUBST(mach_interface_list)
1787 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
1788 config_makefile=
1789 else
1790 config_makefile=Makefile
1791 fi
1793 VERSION=`sed -n -e 's/^#define VERSION "\([^"]*\)"/\1/p' < $srcdir/version.h`
1794 RELEASE=`sed -n -e 's/^#define RELEASE "\([^"]*\)"/\1/p' < $srcdir/version.h`
1795 AC_SUBST(VERSION)
1796 AC_SUBST(RELEASE)
1798 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, [
1799 case $CONFIG_FILES in *config.make*)
1800 echo "$config_vars" >> config.make;;
1801 esac
1802 test -d bits || mkdir bits], [config_vars='$config_vars'])