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 ;;
122 # i586-linuxaout is mangled into i586-pc-linux-gnuaout
123 linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*)
125 gnu* | linux* | sysv4* | solaris2*)
126 # These systems (almost) always use the ELF format.
131 machine=$config_machine
132 vendor=$config_vendor
135 dnl We need to use [ and ] for other purposes for a while now.
137 # Expand the configuration machine name into a subdirectory by architecture
138 # type and particular chip.
140 a29k | am29000) base_machine=a29k machine=a29k ;;
141 alpha*) base_machine=alpha machine=alpha/$machine ;;
142 arm*) base_machine=arm machine=arm/$machine ;;
143 hppa*) base_machine=hppa machine=hppa/$machine ;;
144 i[3456]86) base_machine=i386 machine=i386/$machine ;;
145 m680?0) base_machine=m68k machine=m68k/$machine ;;
146 m68k) base_machine=m68k machine=m68k/m68020 ;;
147 m88???) base_machine=m88k machine=m88k/$machine ;;
148 m88k) base_machine=m88k machine=m88k/m88100 ;;
149 mips*) base_machine=mips machine=mips/$machine ;;
150 mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
151 sparc[6789]) base_machine=sparc machine=sparc/$machine ;;
152 supersparc) base_machine=sparc machine=sparc/sparc8 ;;
155 AC_SUBST(base_machine)
157 # Compute the list of sysdep directories for this configuration.
158 # This can take a while to compute.
159 sysdep_dir=$srcdir/sysdeps
160 AC_MSG_CHECKING(sysdep dirs)
161 dnl We need to use [ and ] for other purposes for a while now.
163 # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
164 os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
169 netbsd* | 386bsd* | freebsd* | bsdi*)
170 base_os=unix/bsd/bsd4.4 ;;
171 osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
173 sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
176 base_os=unix/sysv/sysv4 ;;
178 base_os=standalone ;;
183 # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
186 while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
190 o=`echo $tail | sed 's/[0-9]*$//'`
191 if test $o != $tail; then
194 # For linux-gnu, try linux-gnu, then linux.
195 o=`echo $tail | sed 's/-.*$//'`
196 if test $o != $tail; then
200 # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
203 while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
209 # For sparc/sparc9, try sparc/sparc9 and then sparc.
212 while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
214 # Prepend the machine's FPU directory unless --without-fp.
215 if test "$with_fp" = yes; then
222 dnl We are done with glob and regexp uses of [ and ]; return to autoconf.
225 # Find what sysdep directories exist.
227 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
228 for d in $add_ons_pfx ''; do
229 for b in $base ''; do
230 for m0 in $mach ''; do
231 for v in /$vendor ''; do
232 for o in /$ostry ''; do
233 for m in $mach ''; do
234 if test "$m0$b$v$o$m"; then
235 try="${d}sysdeps$m0$b$v$o$m"
236 test -n "$enable_debug_configure" &&
237 echo "$0 [DEBUG]: try $try" >&2
240 *) dest=$srcdir/$try ;;
242 if test -d $dest; then
243 sysnames="$sysnames $try"
244 { test -n "$o" || test -n "$b"; } && os_used=t
245 { test -n "$m" || test -n "$m0"; } && machine_used=t
256 if test -z "$os_used" && test "$os" != none; then
257 AC_MSG_ERROR(Operating system $os is not supported.)
259 if test -z "$machine_used" && test "$machine" != none; then
260 AC_MSG_ERROR(The $machine is not supported.)
263 # We have now validated the configuration.
266 # If using ELF, look for an `elf' subdirectory of each machine directory.
267 # We prepend these rather than inserting them whereever the machine appears
268 # because things specified by the machine's ELF ABI should override
269 # OS-specific things, and should always be the same for any OS on the
270 # machine (otherwise what's the point of an ABI?).
271 if test "$elf" = yes; then
273 for d in $add_ons_pfx ''; do
276 *) xsrcdir=$srcdir/ ;;
279 if test -d $xsrcdir${d}sysdeps$m/elf; then
280 elf_dirs="$elf_dirs ${d}sysdeps$m/elf"
284 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
288 # Expand the list of system names into a full list of directories
289 # from each element's parent name and Implies file (if present).
292 while test $# -gt 0; do
296 case " $names " in *" $name "*)
297 # Already in the list.
301 # Report each name as we discover it, so there is no long pause in output.
302 echo $ac_n "$name $ac_c" >&AC_FD_MSG
304 name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
308 *) xsrcdir=$srcdir/ ;;
310 test -n "$enable_debug_configure" &&
311 echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2
313 if test -f $xsrcdir$name/Implies; then
314 # Collect more names from the `Implies' file (removing comments).
315 implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`"
317 for x in $implied_candidate; do
318 if test -d $xsrcdir$name_base/$x; then
319 implied="$implied $name_base/$x";
321 AC_MSG_WARN($name/Implies specifies nonexistent $x)
328 # Add NAME to the list of names.
331 # Find the parent of NAME, using the empty string if it has none.
333 parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
336 # Add the names implied by NAME, and NAME's parent (if it has one), to
337 # the list of names to be processed (the argument list). We prepend the
338 # implied names to the list and append the parent. We want implied
339 # directories to come before further directories inferred from the
340 # configuration components; this ensures that for sysv4, unix/common
341 # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
343 sysnames="`echo $implied $* $parent`"
344 test -n "$sysnames" && set $sysnames
347 # Add the default directories.
348 sysnames="$names sysdeps/generic sysdeps/stub"
350 # The other names were emitted during the scan.
351 AC_MSG_RESULT(sysdeps/generic sysdeps/stub)
357 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
358 # The makefiles need to use a different form to find it in $srcdir.
359 INSTALL='$(..)./install-sh -c'
362 AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :)
366 if test $host != $build; then
367 AC_CHECK_PROGS(BUILD_CC, gcc cc)
370 AC_CHECK_TOOL(AR, ar)
371 AC_CHECK_TOOL(RANLIB, ranlib, :)
373 AC_PATH_PROG(BASH, bash, no)
374 if test "$BASH" != no &&
375 $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
376 libc_cv_have_bash2=yes
378 libc_cv_have_bash2=no
380 AC_SUBST(libc_cv_have_bash2)
382 dnl We need a ksh compatible shell for tzselect.
383 if test "$BASH" = no; then
384 AC_PATH_PROG(KSH, ksh, no)
385 if test "$KSH" = no; then
395 AC_SUBST(libc_cv_have_ksh)
397 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
398 echo '#include <stddef.h>
399 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
400 if eval "$ac_cpp conftest.c 2>/dev/null" \
401 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
402 libc_cv_signed_size_t=no
404 libc_cv_signed_size_t=yes
407 if test $libc_cv_signed_size_t = yes; then
408 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
409 cat >> confdefs.h <<\EOF
411 #define __SIZE_TYPE__ unsigned
415 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
417 [#define __need_size_t
418 #define __need_wchar_t
421 #include <stddef.h>], [size_t size; wchar_t wchar;
423 #error stddef.h ignored __need_*
425 if (&size == NULL || &wchar == NULL) abort ();],
426 libc_cv_friendly_stddef=yes,
427 libc_cv_friendly_stddef=no)])
428 if test $libc_cv_friendly_stddef = yes; then
429 config_vars="$config_vars
430 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
433 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
434 libc_cv_need_minus_P, [dnl
435 cat > conftest.S <<EOF
436 #include "confdefs.h"
437 /* Nothing whatsoever. */
439 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
440 libc_cv_need_minus_P=no
442 libc_cv_need_minus_P=yes
445 if test $libc_cv_need_minus_P = yes; then
446 config_vars="$config_vars
447 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
450 AC_CACHE_CHECK(for assembler global-symbol directive,
451 libc_cv_asm_global_directive, [dnl
452 libc_cv_asm_global_directive=UNKNOWN
453 for ac_globl in .globl .global; do
454 cat > conftest.s <<EOF
459 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
460 libc_cv_asm_global_directive=${ac_globl}
463 test $libc_cv_asm_global_directive != UNKNOWN && break
465 if test $libc_cv_asm_global_directive = UNKNOWN; then
466 AC_MSG_ERROR(cannot determine asm global directive)
468 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
471 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
472 cat > conftest.s <<EOF
475 .set glibc_conftest_frobozz,foo
476 $libc_cv_asm_global_directive glibc_conftest_frobozz
478 # The alpha-dec-osf1 assembler gives only a warning for `.set'
479 # (but it doesn't work), so we must do a linking check to be sure.
480 cat > conftest1.c <<\EOF
481 extern int glibc_conftest_frobozz;
482 main () { printf ("%d\n", glibc_conftest_frobozz); }
484 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
485 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
486 libc_cv_asm_set_directive=yes
488 libc_cv_asm_set_directive=no
491 if test $libc_cv_asm_set_directive = yes; then
492 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
495 AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive,
496 [cat > conftest.s <<EOF
499 .symver _sym,sym@VERS
501 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
502 libc_cv_asm_symver_directive=yes
504 libc_cv_asm_symver_directive=no
507 AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl
508 if test $libc_cv_asm_symver_directive = yes; then
509 cat > conftest.s <<EOF
512 .symver _sym,sym@VERS
514 cat > conftest.map <<EOF
519 if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then
520 if AC_TRY_COMMAND([${CC-cc} $CFLAGS --shared -o conftest.so conftest.o
521 -Wl,--version-script,conftest.map]);
523 libc_cv_ld_version_script_option=yes
525 libc_cv_ld_version_script_option=no
528 libc_cv_ld_version_script_option=no
531 libc_cv_ld_version_script_option=no
534 if test $libc_cv_asm_symver_directive = yes &&
535 test $libc_cv_ld_version_script_option = yes; then
537 AC_DEFINE(DO_VERSIONING)
543 if test $elf = yes; then
544 AC_CACHE_CHECK(for .previous assembler directive,
545 libc_cv_asm_previous_directive, [dnl
546 cat > conftest.s <<EOF
550 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
551 libc_cv_asm_previous_directive=yes
553 libc_cv_asm_previous_directive=no
556 if test $libc_cv_asm_previous_directive = yes; then
557 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
559 AC_CACHE_CHECK(for .popsection assembler directive,
560 libc_cv_asm_popsection_directive, [dnl
561 cat > conftest.s <<EOF
562 .pushsection foo_section
565 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
566 libc_cv_asm_popsection_directive=yes
568 libc_cv_asm_popsection_directive=no
571 if test $libc_cv_asm_popsection_directive = yes; then
572 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
577 if test $elf != yes; then
578 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
579 [AC_TRY_COMPILE(, [asm (".section .init");
580 asm (".section .fini");
582 libc_cv_have_initfini=yes,
583 libc_cv_have_initfini=no)])
584 AC_SUBST(libc_cv_have_initfini)dnl
585 if test $libc_cv_have_initfini = yes; then
586 AC_DEFINE(HAVE_INITFINI)
590 if test $elf = yes; then
591 libc_cv_asm_underscores=no
593 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
594 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
595 libc_cv_asm_underscores=yes,
596 libc_cv_asm_underscores=no)])
598 if test $libc_cv_asm_underscores = no; then
599 AC_DEFINE(NO_UNDERSCORES)
602 if test $elf = yes; then
603 libc_cv_weak_symbols=yes
604 libc_cv_asm_weak_directive=yes
605 libc_cv_asm_weakext_directive=no
607 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
609 cat > conftest.s <<EOF
611 ${libc_cv_asm_global_directive} foo
616 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
617 libc_cv_asm_weak_directive=yes
619 libc_cv_asm_weak_directive=no
623 if test $libc_cv_asm_weak_directive = no; then
624 AC_CACHE_CHECK(for assembler .weakext directive,
625 libc_cv_asm_weakext_directive,
627 cat > conftest.s <<EOF
629 ${libc_cv_asm_global_directive} foo
634 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
635 libc_cv_asm_weakext_directive=yes
637 libc_cv_asm_weakext_directive=no
644 if test $libc_cv_asm_weak_directive = yes; then
645 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
646 elif test $libc_cv_asm_weakext_directive = yes; then
647 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
650 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
651 cat > conftest.c <<\EOF
656 dnl No \ in command here because it ends up inside ''.
657 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
658 -nostdlib -nostartfiles -Wl,--no-whole-archive
659 -o conftest conftest.c]); then
660 libc_cv_ld_no_whole_archive=yes
662 libc_cv_ld_no_whole_archive=no
665 AC_SUBST(libc_cv_ld_no_whole_archive)dnl
667 AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl
668 cat > conftest.c <<\EOF
673 dnl No \ in command here because it ends up inside ''.
674 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
675 -nostdlib -nostartfiles -fno-exceptions
676 -o conftest conftest.c]); then
677 libc_cv_gcc_no_exceptions=yes
679 libc_cv_gcc_no_exceptions=no
682 AC_SUBST(libc_cv_gcc_no_exceptions)dnl
684 ### End of automated tests.
685 ### Now run sysdeps configure fragments.
687 # sysdeps configure fragments may set these with files to be linked below.
691 # Iterate over all the sysdep directories we will use, running their
692 # configure fragments, and looking for a uname implementation.
694 for dir in $sysnames; do
697 *) dest=$srcdir/$dir ;;
699 if test -r $dest/configure; then
700 AC_MSG_RESULT(running configure fragment for $dest)
704 if test -z "$uname"; then
705 if test -r $sysdep_dir/$dir/uname.c ||
706 test -r $sysdep_dir/$dir/uname.S ||
707 { test -r $sysdep_dir/$dir/syscalls.list &&
708 grep '^uname[ ]' $sysdep_dir/$dir/syscalls.list >/dev/null; }; then
715 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
717 # If we will use the generic uname implementation, we must figure out what
718 # it will say by examining the system, and write the results in config-name.h.
719 if test "$uname" = generic; then
722 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
724 if test $uname_sysname != $config_os; then
725 config_release=`echo $config_os | sed s/$uname_sysname//`
728 AC_DEFUN(LIBC_KERNEL_ID, [dnl
729 if test -r /vmunix; then
730 kernel_id=`strings /vmunix | grep UNIX`
731 elif test -r /dynix; then
732 kernel_id=`strings /dynix | grep DYNIX`
738 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
739 AC_REQUIRE([LIBC_KERNEL_ID])dnl
741 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
743 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
744 != x$config_release; then
745 # The configuration release is a substring of the kernel release.
746 libc_cv_uname_release=$kernel_release
747 elif test x$config_release != x; then
748 libc_cv_uname_release=$config_release
749 elif test x$kernel_release != x; then
750 libc_cv_uname_release=$kernel_release
752 libc_cv_uname_release=unknown
754 uname_release="$libc_cv_uname_release"
756 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
757 AC_REQUIRE([LIBC_KERNEL_ID])dnl
759 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
761 if test -n "$kernel_version"; then
762 libc_cv_uname_version="$kernel_version"
764 libc_cv_uname_version=unknown
766 uname_version="$libc_cv_uname_version"
768 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
769 config_uname=config-name.h:config-name.in
771 # For non-generic uname, we don't need to create config-name.h at all.
775 AC_MSG_CHECKING(stdio selection)
778 libio) AC_DEFINE(USE_IN_LIBIO) ;;
779 default) stdio=stdio ;;
781 AC_MSG_RESULT($stdio)
783 AC_SUBST(libc_cv_slibdir)
784 AC_SUBST(libc_cv_sysconfdir)
785 AC_SUBST(libc_cv_rootsbindir)
787 AC_SUBST(has_ldconfig)
789 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf)
790 if test $gnu_ld = yes; then
791 AC_DEFINE(HAVE_GNU_LD)
793 if test $gnu_as = yes; then
794 AC_DEFINE(HAVE_GNU_AS)
796 if test $elf = yes; then
801 if test $shared = default; then
802 if test $gnu_ld = yes; then
805 # For now we do not assume shared libs are available. In future more
806 # tests might become available.
816 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
819 config_makefile=Makefile
822 VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h`
825 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, ,
826 [echo '$config_vars' >> config.make])