1 Dnl Process this file with autoconf to produce a configure script.
3 AC_PREREQ(2.11)dnl dnl Minimum Autoconf version required.
5 AC_CONFIG_HEADER(config.h)
7 # This will get text that should go into config.make.
10 # Check for a --with-gmp argument and set gmp-srcdir in config.make.
12 --with-gmp=DIRECTORY find GMP source code in DIRECTORY (not needed),
15 yes) AC_MSG_ERROR(--with-gmp requires an argument; use --with-gmp=DIRECTORY) ;;
17 *) config_vars="$config_vars
18 gmp-srcdir = $withval" ;;
21 # Check for a --with-gettext argument and set gettext-srcdir in config.make.
22 AC_ARG_WITH(gettext, dnl
23 --with-gettext=DIR find GNU gettext source code in DIR (not needed),
25 case "$with_gettext" in
27 AC_MSG_ERROR(--with-gettext requires an argument; use --with-gettext=DIR) ;;
30 config_vars="$config_vars
31 gettext-srcdir = $withval" ;;
35 dnl Arguments to specify presence of other packages/features.
37 [ --with-fp if using floating-point hardware [default=yes]],
38 with_fp=$withval, with_fp=yes)
39 AC_ARG_WITH(gnu-binutils, dnl
40 --with-gnu-binutils if using GNU binutils (as and ld),
41 gnu_binutils=$withval, gnu_binutils=no)
42 AC_ARG_WITH(gnu-ld, dnl
43 --with-gnu-ld if using GNU ld (in the binutils package),
44 gnu_ld=$withval, gnu_ld=no)
45 AC_ARG_WITH(gnu-as, dnl
46 --with-gnu-as if using GNU as (in the binutils package),
47 gnu_as=$withval, gnu_as=no)
48 test $gnu_binutils = yes && gnu_as=yes gnu_ld=yes
50 --with-elf if using the ELF object format,
53 AC_ARG_ENABLE(libio, dnl
54 [ --enable-libio build in GNU libio instead of GNU stdio],
55 [if test $enableval = yes; then
62 AC_ARG_ENABLE(sanity-checks, dnl
63 [ --disable-sanity-checks really do not use threads (should not be used
64 except in special situations) [default=yes]],
65 enable_sanity=$enableval, enable_sanity=yes)
67 dnl Arguments to enable or disable building the shared, profiled, and
68 dnl -fomit-frame-pointer libraries.
69 AC_ARG_ENABLE(shared, dnl
70 [ --enable-shared build shared library [default=yes if GNU ld & ELF]],
71 shared=$enableval, shared=default)
72 AC_ARG_ENABLE(profile, dnl
73 [ --enable-profile build profiled library [default=yes]],
74 profile=$enableval, profile=yes)
75 AC_ARG_ENABLE(omitfp, dnl
76 [ --enable-omitfp build undebuggable optimized library [default=no]],
77 omitfp=$enableval, omitfp=no)
78 AC_ARG_ENABLE(bounded, dnl
79 [ --enable-bounded build with runtime bounds checking [default=no]],
80 bounded=$enableval, bounded=no)
82 dnl Generic infrastructure for drop-in additions to libc.
83 AC_ARG_ENABLE(add-ons, dnl
84 [ --enable-add-ons=DIR... configure and build named extra directories],
85 [add_ons=`echo "$enableval" | sed 's/,/ /g'`],
87 AC_CONFIG_SUBDIRS($add_ons)
89 if test x"$add_ons" != x; then
91 add_ons_pfx="$add_ons_pfx $f/"
97 # The way shlib-versions is used to generate soversions.mk uses a
98 # fairly simplistic model for name recognition that can't distinguish
99 # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os
100 # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can
101 # tell. This doesn't get used much beyond that, so it's fairly safe.
106 host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'`
110 # We keep the original values in `$config_*' and never modify them, so we
111 # can write them unchanged into config.make. Everything else uses
112 # $machine, $vendor, and $os, and changes them whenever convenient.
113 config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os
115 # Some configurations imply other options.
117 gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
118 # These systems always use GNU tools.
119 gnu_ld=yes gnu_as=yes ;;
124 gnu* | linux* | sysv4* | solaris2*)
125 # These systems (almost) always use the ELF format.
130 machine=$config_machine
131 vendor=$config_vendor
134 dnl We need to use [ and ] for other purposes for a while now.
136 # Expand the configuration machine name into a subdirectory by architecture
137 # type and particular chip.
139 a29k | am29000) base_machine=a29k machine=a29k ;;
140 alpha*) base_machine=alpha machine=alpha/$machine ;;
141 hppa*) base_machine=hppa machine=hppa/$machine ;;
142 i[3456]86) base_machine=i386 machine=i386/$machine ;;
143 m680?0) base_machine=m68k machine=m68k/$machine ;;
144 m68k) base_machine=m68k machine=m68k/m68020 ;;
145 m88???) base_machine=m88k machine=m88k/$machine ;;
146 m88k) base_machine=m88k machine=m88k/m88100 ;;
147 mips*) base_machine=mips machine=mips/$machine ;;
148 mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
149 sparc[6789]) base_machine=sparc machine=sparc/$machine ;;
150 supersparc) base_machine=sparc machine=sparc/sparc8 ;;
153 AC_SUBST(base_machine)
155 # Compute the list of sysdep directories for this configuration.
156 # This can take a while to compute.
157 sysdep_dir=$srcdir/sysdeps
158 AC_MSG_CHECKING(sysdep dirs)
159 dnl We need to use [ and ] for other purposes for a while now.
161 # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
162 os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
167 netbsd* | 386bsd* | freebsd* | bsdi*)
168 base_os=unix/bsd/bsd4.4 ;;
169 osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
171 sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
174 base_os=unix/sysv/sysv4 ;;
176 base_os=standalone ;;
181 # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
184 while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
188 o=`echo $tail | sed 's/[0-9]*$//'`
189 if test $o != $tail; then
192 # For linux-gnu, try linux-gnu, then linux.
193 o=`echo $tail | sed 's/-.*$//'`
194 if test $o != $tail; then
198 # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
201 while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
207 # For sparc/sparc9, try sparc/sparc9 and then sparc.
210 while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
212 # Prepend the machine's FPU directory unless --without-fp.
213 if test "$with_fp" = yes; then
220 dnl We are done with glob and regexp uses of [ and ]; return to autoconf.
223 # Find what sysdep directories exist.
225 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
226 for d in $add_ons_pfx ''; do
227 for b in $base ''; do
228 for m0 in $mach ''; do
229 for v in /$vendor ''; do
230 for o in /$ostry ''; do
231 for m in $mach ''; do
232 if test "$m0$b$v$o$m"; then
233 try="${d}sysdeps$m0$b$v$o$m"
234 test -n "$enable_debug_configure" &&
235 echo "$0 [DEBUG]: try $try" >&2
238 *) dest=$srcdir/$try ;;
240 if test -d $dest; then
241 sysnames="$sysnames $try"
242 { test -n "$o" || test -n "$b"; } && os_used=t
243 { test -n "$m" || test -n "$m0"; } && machine_used=t
254 if test -z "$os_used" && test "$os" != none; then
255 AC_MSG_ERROR(Operating system $os is not supported.)
257 if test -z "$machine_used" && test "$machine" != none; then
258 AC_MSG_ERROR(The $machine is not supported.)
261 # We have now validated the configuration.
264 # If using ELF, look for an `elf' subdirectory of each machine directory.
265 # We prepend these rather than inserting them whereever the machine appears
266 # because things specified by the machine's ELF ABI should override
267 # OS-specific things, and should always be the same for any OS on the
268 # machine (otherwise what's the point of an ABI?).
269 if test "$elf" = yes; then
271 for d in $add_ons_pfx ''; do
274 *) xsrcdir=$srcdir/ ;;
277 if test -d $xsrcdir${d}sysdeps$m/elf; then
278 elf_dirs="$elf_dirs ${d}sysdeps$m/elf"
282 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
286 # Expand the list of system names into a full list of directories
287 # from each element's parent name and Implies file (if present).
290 while test $# -gt 0; do
294 case " $names " in *" $name "*)
295 # Already in the list.
299 # Report each name as we discover it, so there is no long pause in output.
300 echo $ac_n "$name $ac_c" >&AC_FD_MSG
302 name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
306 *) xsrcdir=$srcdir/ ;;
308 test -n "$enable_debug_configure" &&
309 echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2
311 if test -f $xsrcdir$name/Implies; then
312 # Collect more names from the `Implies' file (removing comments).
313 implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`"
315 for x in $implied_candidate; do
316 if test -d $xsrcdir$name_base/$x; then
317 implied="$implied $name_base/$x";
319 AC_MSG_WARN($name/Implies specifies nonexistent $x)
326 # Add NAME to the list of names.
329 # Find the parent of NAME, using the empty string if it has none.
331 parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
334 # Add the names implied by NAME, and NAME's parent (if it has one), to
335 # the list of names to be processed (the argument list). We prepend the
336 # implied names to the list and append the parent. We want implied
337 # directories to come before further directories inferred from the
338 # configuration components; this ensures that for sysv4, unix/common
339 # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
341 sysnames="`echo $implied $* $parent`"
342 test -n "$sysnames" && set $sysnames
345 # Add the default directories.
346 sysnames="$names sysdeps/generic sysdeps/stub"
348 # The other names were emitted during the scan.
349 AC_MSG_RESULT(sysdeps/generic sysdeps/stub)
355 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
356 # The makefiles need to use a different form to find it in $srcdir.
357 INSTALL='$(..)./install-sh -c'
360 AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :)
364 if test $host != $build; then
365 AC_CHECK_PROGS(BUILD_CC, gcc cc)
368 AC_CHECK_TOOL(AR, ar)
369 AC_CHECK_TOOL(RANLIB, ranlib, :)
371 AC_PATH_PROG(BASH, bash, no)
372 if test "$BASH" != no &&
373 $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
374 libc_cv_have_bash2=yes
376 libc_cv_have_bash2=no
378 AC_SUBST(libc_cv_have_bash2)
380 dnl We need a ksh compatible shell for tzselect.
381 if test "$BASH" = no; then
382 AC_PATH_PROG(KSH, ksh, no)
383 if test "$KSH" = no; then
393 AC_SUBST(libc_cv_have_ksh)
395 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
396 echo '#include <stddef.h>
397 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
398 if eval "$ac_cpp conftest.c 2>/dev/null" \
399 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
400 libc_cv_signed_size_t=no
402 libc_cv_signed_size_t=yes
405 if test $libc_cv_signed_size_t = yes; then
406 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
407 cat >> confdefs.h <<\EOF
409 #define __SIZE_TYPE__ unsigned
413 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
415 [#define __need_size_t
416 #define __need_wchar_t
419 #include <stddef.h>], [size_t size; wchar_t wchar;
421 #error stddef.h ignored __need_*
423 if (&size == NULL || &wchar == NULL) abort ();],
424 libc_cv_friendly_stddef=yes,
425 libc_cv_friendly_stddef=no)])
426 if test $libc_cv_friendly_stddef = yes; then
427 config_vars="$config_vars
428 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
431 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
432 libc_cv_need_minus_P, [dnl
433 cat > conftest.S <<EOF
434 #include "confdefs.h"
435 /* Nothing whatsoever. */
437 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
438 libc_cv_need_minus_P=no
440 libc_cv_need_minus_P=yes
443 if test $libc_cv_need_minus_P = yes; then
444 config_vars="$config_vars
445 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
448 AC_CACHE_CHECK(for assembler global-symbol directive,
449 libc_cv_asm_global_directive, [dnl
450 libc_cv_asm_global_directive=UNKNOWN
451 for ac_globl in .globl .global; do
452 cat > conftest.s <<EOF
457 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
458 libc_cv_asm_global_directive=${ac_globl}
461 test $libc_cv_asm_global_directive != UNKNOWN && break
463 if test $libc_cv_asm_global_directive = UNKNOWN; then
464 AC_MSG_ERROR(cannot determine asm global directive)
466 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
469 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
470 cat > conftest.s <<EOF
473 .set glibc_conftest_frobozz,foo
474 $libc_cv_asm_global_directive glibc_conftest_frobozz
476 # The alpha-dec-osf1 assembler gives only a warning for `.set'
477 # (but it doesn't work), so we must do a linking check to be sure.
478 cat > conftest1.c <<\EOF
479 extern int glibc_conftest_frobozz;
480 main () { printf ("%d\n", glibc_conftest_frobozz); }
482 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
483 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
484 libc_cv_asm_set_directive=yes
486 libc_cv_asm_set_directive=no
489 if test $libc_cv_asm_set_directive = yes; then
490 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
493 AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive,
494 [cat > conftest.s <<EOF
497 .symver _sym,sym@VERS
499 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
500 libc_cv_asm_symver_directive=yes
502 libc_cv_asm_symver_directive=no
505 AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl
506 if test $libc_cv_asm_symver_directive = yes; then
507 cat > conftest.s <<EOF
510 .symver _sym,sym@VERS
512 cat > conftest.map <<EOF
517 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
518 if AC_TRY_COMMAND([${CC-cc} $CFLAGS --shared -o conftest.so conftest.o
519 -Wl,--version-script,conftest.map]);
521 libc_cv_ld_version_script_option=yes
523 libc_cv_ld_version_script_option=no
526 libc_cv_ld_version_script_option=no
529 libc_cv_ld_version_script_option=no
532 if test $libc_cv_asm_symver_directive = yes &&
533 test $libc_cv_ld_version_script_option = yes; then
535 AC_DEFINE(DO_VERSIONING)
541 if test $elf = yes; then
542 AC_CACHE_CHECK(for .previous assembler directive,
543 libc_cv_asm_previous_directive, [dnl
544 cat > conftest.s <<EOF
548 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
549 libc_cv_asm_previous_directive=yes
551 libc_cv_asm_previous_directive=no
554 if test $libc_cv_asm_previous_directive = yes; then
555 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
557 AC_CACHE_CHECK(for .popsection assembler directive,
558 libc_cv_asm_popsection_directive, [dnl
559 cat > conftest.s <<EOF
560 .pushsection foo_section
563 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
564 libc_cv_asm_popsection_directive=yes
566 libc_cv_asm_popsection_directive=no
569 if test $libc_cv_asm_popsection_directive = yes; then
570 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
575 if test $elf != yes; then
576 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
577 [AC_TRY_COMPILE(, [asm (".section .init");
578 asm (".section .fini");
580 libc_cv_have_initfini=yes,
581 libc_cv_have_initfini=no)])
582 AC_SUBST(libc_cv_have_initfini)dnl
583 if test $libc_cv_have_initfini = yes; then
584 AC_DEFINE(HAVE_INITFINI)
588 if test $elf = yes; then
589 libc_cv_asm_underscores=no
591 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
592 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
593 libc_cv_asm_underscores=yes,
594 libc_cv_asm_underscores=no)])
596 if test $libc_cv_asm_underscores = no; then
597 AC_DEFINE(NO_UNDERSCORES)
600 if test $elf = yes; then
601 libc_cv_weak_symbols=yes
602 libc_cv_asm_weak_directive=yes
603 libc_cv_asm_weakext_directive=no
605 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
607 cat > conftest.s <<EOF
609 ${libc_cv_asm_global_directive} foo
614 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
615 libc_cv_asm_weak_directive=yes
617 libc_cv_asm_weak_directive=no
621 if test $libc_cv_asm_weak_directive = no; then
622 AC_CACHE_CHECK(for assembler .weakext directive,
623 libc_cv_asm_weakext_directive,
625 cat > conftest.s <<EOF
627 ${libc_cv_asm_global_directive} foo
632 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
633 libc_cv_asm_weakext_directive=yes
635 libc_cv_asm_weakext_directive=no
642 if test $libc_cv_asm_weak_directive = yes; then
643 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
644 elif test $libc_cv_asm_weakext_directive = yes; then
645 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
648 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
649 cat > conftest.c <<\EOF
654 dnl No \ in command here because it ends up inside ''.
655 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
656 -nostdlib -nostartfiles -Wl,--no-whole-archive
657 -o conftest conftest.c]); then
658 libc_cv_ld_no_whole_archive=yes
660 libc_cv_ld_no_whole_archive=no
663 AC_SUBST(libc_cv_ld_no_whole_archive)dnl
665 AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl
666 cat > conftest.c <<\EOF
671 dnl No \ in command here because it ends up inside ''.
672 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
673 -nostdlib -nostartfiles -fno-exceptions
674 -o conftest conftest.c]); then
675 libc_cv_gcc_no_exceptions=yes
677 libc_cv_gcc_no_exceptions=no
680 AC_SUBST(libc_cv_gcc_no_exceptions)dnl
682 ### End of automated tests.
683 ### Now run sysdeps configure fragments.
685 # sysdeps configure fragments may set these with files to be linked below.
689 # Iterate over all the sysdep directories we will use, running their
690 # configure fragments, and looking for a uname implementation.
692 for dir in $sysnames; do
695 *) dest=$srcdir/$dir ;;
697 if test -r $dest/configure; then
698 AC_MSG_RESULT(running configure fragment for $dest)
702 if test -z "$uname"; then
703 if test -r $sysdep_dir/$dir/uname.c ||
704 test -r $sysdep_dir/$dir/uname.S ||
705 { test -r $sysdep_dir/$dir/syscalls.list &&
706 grep '^uname[ ]' $sysdep_dir/$dir/syscalls.list >/dev/null; }; then
713 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
715 # If we will use the generic uname implementation, we must figure out what
716 # it will say by examining the system, and write the results in config-name.h.
717 if test "$uname" = generic; then
720 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
722 if test $uname_sysname != $config_os; then
723 config_release=`echo $config_os | sed s/$uname_sysname//`
726 AC_DEFUN(LIBC_KERNEL_ID, [dnl
727 if test -r /vmunix; then
728 kernel_id=`strings /vmunix | grep UNIX`
729 elif test -r /dynix; then
730 kernel_id=`strings /dynix | grep DYNIX`
736 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
737 AC_REQUIRE([LIBC_KERNEL_ID])dnl
739 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
741 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
742 != x$config_release; then
743 # The configuration release is a substring of the kernel release.
744 libc_cv_uname_release=$kernel_release
745 elif test x$config_release != x; then
746 libc_cv_uname_release=$config_release
747 elif test x$kernel_release != x; then
748 libc_cv_uname_release=$kernel_release
750 libc_cv_uname_release=unknown
752 uname_release="$libc_cv_uname_release"
754 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
755 AC_REQUIRE([LIBC_KERNEL_ID])dnl
757 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
759 if test -n "$kernel_version"; then
760 libc_cv_uname_version="$kernel_version"
762 libc_cv_uname_version=unknown
764 uname_version="$libc_cv_uname_version"
766 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
767 config_uname=config-name.h:config-name.in
769 # For non-generic uname, we don't need to create config-name.h at all.
773 AC_MSG_CHECKING(stdio selection)
776 libio) AC_DEFINE(USE_IN_LIBIO) ;;
777 default) stdio=stdio ;;
779 AC_MSG_RESULT($stdio)
781 AC_SUBST(libc_cv_slibdir)
782 AC_SUBST(libc_cv_sysconfdir)
783 AC_SUBST(libc_cv_rootsbindir)
785 AC_SUBST(has_ldconfig)
787 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf)
788 if test $gnu_ld = yes; then
789 AC_DEFINE(HAVE_GNU_LD)
791 if test $gnu_as = yes; then
792 AC_DEFINE(HAVE_GNU_AS)
794 if test $elf = yes; then
799 if test $shared = default; then
800 if test $gnu_ld = yes; then
803 # For now we do not assume shared libs are available. In future more
804 # tests might become available.
814 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
817 config_makefile=Makefile
820 VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h`
823 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, ,
824 [echo '$config_vars' >> config.make])