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)
79 dnl Some gcc versions have problems with omit-frame-pointer. Warn about this.
80 if test $omitfp = yes; then
81 echo "*** Not all versions of GCC compile code correctly when the"
82 echo "*** -fomit-frame-pointer option is used. You are on your own"
83 echo "*** if you use it."
86 dnl Generic infrastructure for drop-in additions to libc.
87 AC_ARG_ENABLE(add-ons, dnl
88 [ --enable-add-ons[=DIR1,DIR2]... configure and build add-ons in DIR1,DIR2,...
89 search for add-ons if no parameter given],
91 yes) if test "$srcdir" = "."; then
92 add_ons=`echo */configure | sed -e 's!/configure!!g'`
94 add_ons=`echo $srcdir/*/configure | \
95 sed -e 's!/configure!!g' -e "s!$srcdir/!!g"`
97 *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;;
100 AC_CONFIG_SUBDIRS($add_ons)
102 if test x"$add_ons" != x; then
103 for f in $add_ons; do
104 # Test whether such a subdir really exists.
105 if test -d $srcdir/$f; then
106 add_ons_pfx="$add_ons_pfx $f/"
108 AC_MSG_ERROR(add-on directory \"$f\" does not exist)
115 # The way shlib-versions is used to generate soversions.mk uses a
116 # fairly simplistic model for name recognition that can't distinguish
117 # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os
118 # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can
119 # tell. This doesn't get used much beyond that, so it's fairly safe.
124 host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'`
128 ### I put this here to prevent those annoying emails from people who cannot
129 ### read and try to compile glibc on unsupported platforms. --drepper
131 ### By using the undocumented --enable-hacker-mode option for configure
132 ### one can skip this test to make the configuration not fail for unsupported
135 if test -z "$enable_hacker_mode"; then
140 echo "*** The GNU C library is currently not available for this platform."
141 echo "*** So far nobody cared to port it and if there is no volunteer it"
142 echo "*** might never happen. So, if you have interest to see glibc on"
143 echo "*** this platform visit"
144 echo "*** http://www.gnu.org/software/libc/porting.html"
145 echo "*** and join the group of porters"
152 # We keep the original values in `$config_*' and never modify them, so we
153 # can write them unchanged into config.make. Everything else uses
154 # $machine, $vendor, and $os, and changes them whenever convenient.
155 config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os
157 # Some configurations imply other options.
159 gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
160 # These systems always use GNU tools.
161 gnu_ld=yes gnu_as=yes ;;
164 # i586-linuxaout is mangled into i586-pc-linux-gnuaout
165 linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*)
167 gnu* | linux* | sysv4* | solaris2*)
168 # These systems (almost) always use the ELF format.
173 machine=$config_machine
174 vendor=$config_vendor
177 dnl We need to use [ and ] for other purposes for a while now.
179 # Expand the configuration machine name into a subdirectory by architecture
180 # type and particular chip.
182 a29k | am29000) base_machine=a29k machine=a29k ;;
183 alpha*) base_machine=alpha machine=alpha/$machine ;;
184 hppa*) base_machine=hppa machine=hppa/$machine ;;
185 i[3456]86) base_machine=i386 machine=i386/$machine ;;
186 m680?0) base_machine=m68k machine=m68k/$machine ;;
187 m68k) base_machine=m68k machine=m68k/m68020 ;;
188 m88???) base_machine=m88k machine=m88k/$machine ;;
189 m88k) base_machine=m88k machine=m88k/m88100 ;;
190 mips*) base_machine=mips machine=mips/$machine ;;
191 mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
193 base_machine=sparc machine=sparc/sparc32 ;;
194 sparcv8 | supersparc | hypersparc)
195 base_machine=sparc machine=sparc/sparc32/sparcv8 ;;
196 sparc64) base_machine=sparc machine=sparc/sparc64 ;;
199 AC_SUBST(base_machine)
201 # Compute the list of sysdep directories for this configuration.
202 # This can take a while to compute.
203 sysdep_dir=$srcdir/sysdeps
204 AC_MSG_CHECKING(sysdep dirs)
205 dnl We need to use [ and ] for other purposes for a while now.
207 # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
208 os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
213 netbsd* | 386bsd* | freebsd* | bsdi*)
214 base_os=unix/bsd/bsd4.4 ;;
215 osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
217 sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
220 base_os=unix/sysv/sysv4 ;;
222 base_os=standalone ;;
227 # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
230 while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
234 o=`echo $tail | sed 's/[0-9]*$//'`
235 if test $o != $tail; then
238 # For linux-gnu, try linux-gnu, then linux.
239 o=`echo $tail | sed 's/-.*$//'`
240 if test $o != $tail; then
244 # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
247 while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
253 # For sparc/sparcv9, try sparc/sparcv9 and then sparc.
256 while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
258 # Prepend the machine's FPU directory unless --without-fp.
259 if test "$with_fp" = yes; then
266 dnl We are done with glob and regexp uses of [ and ]; return to autoconf.
269 # Find what sysdep directories exist.
271 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
272 for d in $add_ons_pfx ''; do
273 for b in $base ''; do
274 for m0 in $mach ''; do
275 for v in /$vendor ''; do
276 for o in /$ostry ''; do
277 for m in $mach ''; do
278 if test "$m0$b$v$o$m"; then
279 try="${d}sysdeps$m0$b$v$o$m"
280 test -n "$enable_debug_configure" &&
281 echo "$0 [DEBUG]: try $try" >&2
284 *) dest=$srcdir/$try ;;
286 if test -d $dest; then
287 sysnames="$sysnames $try"
288 { test -n "$o" || test -n "$b"; } && os_used=t
289 { test -n "$m" || test -n "$m0"; } && machine_used=t
300 if test -z "$os_used" && test "$os" != none; then
301 AC_MSG_ERROR(Operating system $os is not supported.)
303 if test -z "$machine_used" && test "$machine" != none; then
304 AC_MSG_ERROR(The $machine is not supported.)
307 # We have now validated the configuration.
310 # If using ELF, look for an `elf' subdirectory of each machine directory.
311 # We prepend these rather than inserting them whereever the machine appears
312 # because things specified by the machine's ELF ABI should override
313 # OS-specific things, and should always be the same for any OS on the
314 # machine (otherwise what's the point of an ABI?).
315 if test "$elf" = yes; then
317 for d in $add_ons_pfx ''; do
320 *) xsrcdir=$srcdir/ ;;
323 if test -d $xsrcdir${d}sysdeps$m/elf; then
324 elf_dirs="$elf_dirs ${d}sysdeps$m/elf"
328 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
332 # Expand the list of system names into a full list of directories
333 # from each element's parent name and Implies file (if present).
336 while test $# -gt 0; do
340 case " $names " in *" $name "*)
341 # Already in the list.
345 # Report each name as we discover it, so there is no long pause in output.
346 echo $ac_n "$name $ac_c" >&AC_FD_MSG
348 name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
352 *) xsrcdir=$srcdir/ ;;
354 test -n "$enable_debug_configure" &&
355 echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2
357 if test -f $xsrcdir$name/Implies; then
358 # Collect more names from the `Implies' file (removing comments).
359 implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`"
361 for x in $implied_candidate; do
362 if test -d $xsrcdir$name_base/$x; then
363 implied="$implied $name_base/$x";
365 AC_MSG_WARN($name/Implies specifies nonexistent $x)
372 # Add NAME to the list of names.
375 # Find the parent of NAME, using the empty string if it has none.
377 parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
380 # Add the names implied by NAME, and NAME's parent (if it has one), to
381 # the list of names to be processed (the argument list). We prepend the
382 # implied names to the list and append the parent. We want implied
383 # directories to come before further directories inferred from the
384 # configuration components; this ensures that for sysv4, unix/common
385 # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
387 sysnames="`echo $implied $* $parent`"
388 test -n "$sysnames" && set $sysnames
391 # Add the default directories.
392 sysnames="$names sysdeps/generic sysdeps/stub"
394 # The other names were emitted during the scan.
395 AC_MSG_RESULT(sysdeps/generic sysdeps/stub)
401 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
402 # The makefiles need to use a different form to find it in $srcdir.
403 INSTALL='\$(..)./install-sh -c'
406 AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :)
410 if test $host != $build; then
411 AC_CHECK_PROGS(BUILD_CC, gcc cc)
413 AC_SUBST(cross_compiling)
415 AC_CHECK_TOOL(AR, ar)
416 AC_CHECK_TOOL(RANLIB, ranlib, :)
418 AC_PATH_PROG(BASH, bash, no)
419 if test "$BASH" != no &&
420 $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
421 libc_cv_have_bash2=yes
423 libc_cv_have_bash2=no
425 AC_SUBST(libc_cv_have_bash2)
427 dnl We need a ksh compatible shell for tzselect.
428 if test "$BASH" = no; then
429 AC_PATH_PROG(KSH, ksh, no)
430 if test "$KSH" = no; then
440 AC_SUBST(libc_cv_have_ksh)
442 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
443 echo '#include <stddef.h>
444 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
445 if eval "$ac_cpp conftest.c 2>/dev/null" \
446 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
447 libc_cv_signed_size_t=no
449 libc_cv_signed_size_t=yes
452 if test $libc_cv_signed_size_t = yes; then
453 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
454 cat >> confdefs.h <<\EOF
456 #define __SIZE_TYPE__ unsigned
460 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
462 [#define __need_size_t
463 #define __need_wchar_t
466 #include <stddef.h>], [size_t size; wchar_t wchar;
468 #error stddef.h ignored __need_*
470 if (&size == NULL || &wchar == NULL) abort ();],
471 libc_cv_friendly_stddef=yes,
472 libc_cv_friendly_stddef=no)])
473 if test $libc_cv_friendly_stddef = yes; then
474 config_vars="$config_vars
475 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
478 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
479 libc_cv_need_minus_P, [dnl
480 cat > conftest.S <<EOF
481 #include "confdefs.h"
482 /* Nothing whatsoever. */
484 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
485 libc_cv_need_minus_P=no
487 libc_cv_need_minus_P=yes
490 if test $libc_cv_need_minus_P = yes; then
491 config_vars="$config_vars
492 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
495 # gcc 2.7.x has a bug where if -pipe is set, the assembler will always
496 # be told to read stdin. This causes the compiler to hang when fed an
498 if test $ac_cv_prog_gcc = yes; then
499 case `${CC-cc} -v 2>&1` in
501 # We must check this even if -pipe is not given here, because the user
502 # might do `make CFLAGS=-pipe'.
503 AC_CACHE_CHECK(for gcc 2.7.x -pipe bug, libc_cv_gcc_pipe_bug, [dnl
504 cp /dev/null conftest.s
505 cat >conftest1.s <<EOF
508 if ${CC-cc} -pipe -c conftest.s <conftest1.s 2>/dev/null; then
509 libc_cv_gcc_pipe_bug=no
511 libc_cv_gcc_pipe_bug=yes
514 if test $libc_cv_gcc_pipe_bug = yes; then
515 makeCC="${CC-cc} -B\$(common-objpfx)"
517 CFLAGS=`echo $CFLAGS |sed 's/-pipe//'`
519 *) libc_cv_gcc_pipe_bug=no;;
522 libc_cv_gcc_pipe_bug=no
526 AC_CACHE_CHECK(for assembler global-symbol directive,
527 libc_cv_asm_global_directive, [dnl
528 libc_cv_asm_global_directive=UNKNOWN
529 for ac_globl in .globl .global; do
530 cat > conftest.s <<EOF
535 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
536 libc_cv_asm_global_directive=${ac_globl}
539 test $libc_cv_asm_global_directive != UNKNOWN && break
541 if test $libc_cv_asm_global_directive = UNKNOWN; then
542 AC_MSG_ERROR(cannot determine asm global directive)
544 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
547 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
548 cat > conftest.s <<EOF
551 .set glibc_conftest_frobozz,foo
552 $libc_cv_asm_global_directive glibc_conftest_frobozz
554 # The alpha-dec-osf1 assembler gives only a warning for `.set'
555 # (but it doesn't work), so we must do a linking check to be sure.
556 cat > conftest1.c <<\EOF
557 extern int glibc_conftest_frobozz;
558 main () { printf ("%d\n", glibc_conftest_frobozz); }
560 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
561 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
562 libc_cv_asm_set_directive=yes
564 libc_cv_asm_set_directive=no
567 if test $libc_cv_asm_set_directive = yes; then
568 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
571 if test $elf = yes; then
572 AC_CACHE_CHECK(for .previous assembler directive,
573 libc_cv_asm_previous_directive, [dnl
574 cat > conftest.s <<EOF
578 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
579 libc_cv_asm_previous_directive=yes
581 libc_cv_asm_previous_directive=no
584 if test $libc_cv_asm_previous_directive = yes; then
585 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
587 AC_CACHE_CHECK(for .popsection assembler directive,
588 libc_cv_asm_popsection_directive, [dnl
589 cat > conftest.s <<EOF
590 .pushsection foo_section
593 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
594 libc_cv_asm_popsection_directive=yes
596 libc_cv_asm_popsection_directive=no
599 if test $libc_cv_asm_popsection_directive = yes; then
600 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
605 if test $elf != yes; then
606 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
607 [AC_TRY_COMPILE(, [asm (".section .init");
608 asm (".section .fini");
610 libc_cv_have_initfini=yes,
611 libc_cv_have_initfini=no)])
612 AC_SUBST(libc_cv_have_initfini)dnl
613 if test $libc_cv_have_initfini = yes; then
614 AC_DEFINE(HAVE_INITFINI)
618 dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
619 AC_DEFUN(AC_CHECK_ASM_UNDERSCORE,
620 [cat > conftest.$ac_ext <<EOF
621 dnl This sometimes fails to find confdefs.h, for some reason.
622 dnl [#]line __oline__ "[$]0"
623 [#]line __oline__ "configure"
624 #include "confdefs.h"
625 void underscore_test(void) {
628 if AC_TRY_EVAL(ac_compile); then
629 if grep _underscore_test conftest* >/dev/null; then
630 ifelse([$1], , :, [rm -f conftest*
633 ifelse([$2], , , [rm -f conftest*
637 echo "configure: failed program was:" >&AC_FD_CC
638 cat conftest.$ac_ext >&AC_FD_CC
639 ifelse([$2], , , [rm -f conftest*
644 if test $elf = yes; then
645 libc_cv_asm_underscores=no
647 if test $ac_cv_prog_cc_works = yes; then
648 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
649 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
650 libc_cv_asm_underscores=yes,
651 libc_cv_asm_underscores=no)])
653 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
654 [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes,
655 libc_cv_asm_underscores=no)])
658 if test $libc_cv_asm_underscores = no; then
659 AC_DEFINE(NO_UNDERSCORES)
662 if test $elf = yes; then
663 libc_cv_weak_symbols=yes
664 libc_cv_asm_weak_directive=yes
665 libc_cv_asm_weakext_directive=no
667 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
669 cat > conftest.s <<EOF
671 ${libc_cv_asm_global_directive} foo
676 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
677 libc_cv_asm_weak_directive=yes
679 libc_cv_asm_weak_directive=no
683 if test $libc_cv_asm_weak_directive = no; then
684 AC_CACHE_CHECK(for assembler .weakext directive,
685 libc_cv_asm_weakext_directive,
687 cat > conftest.s <<EOF
689 ${libc_cv_asm_global_directive} foo
694 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
695 libc_cv_asm_weakext_directive=yes
697 libc_cv_asm_weakext_directive=no
704 if test $libc_cv_asm_weak_directive = yes; then
705 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
706 elif test $libc_cv_asm_weakext_directive = yes; then
707 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
710 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
711 cat > conftest.c <<\EOF
716 dnl No \ in command here because it ends up inside ''.
717 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
718 -nostdlib -nostartfiles -Wl,--no-whole-archive
719 -o conftest conftest.c 1>&AC_FD_CC]); then
720 libc_cv_ld_no_whole_archive=yes
722 libc_cv_ld_no_whole_archive=no
725 AC_SUBST(libc_cv_ld_no_whole_archive)dnl
727 AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl
728 cat > conftest.c <<\EOF
733 dnl No \ in command here because it ends up inside ''.
734 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
735 -nostdlib -nostartfiles -fno-exceptions
736 -o conftest conftest.c 1>&AC_FD_CC]); then
737 libc_cv_gcc_no_exceptions=yes
739 libc_cv_gcc_no_exceptions=no
742 AC_SUBST(libc_cv_gcc_no_exceptions)dnl
744 if test "$base_machine" = alpha ; then
745 AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl
746 cat > conftest.c <<\EOF
750 if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]);
752 libc_cv_gcc_alpha_ng_prefix=yes
754 libc_cv_gcc_alpha_ng_prefix=no
757 if test $libc_cv_gcc_alpha_ng_prefix = yes ; then
758 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$")
760 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "")
764 ### End of automated tests.
765 ### Now run sysdeps configure fragments.
767 # sysdeps configure fragments may set these with files to be linked below.
771 # Iterate over all the sysdep directories we will use, running their
772 # configure fragments, and looking for a uname implementation.
774 for dir in $sysnames; do
777 *) dest=$srcdir/$dir ;;
779 if test -r $dest/configure; then
780 AC_MSG_RESULT(running configure fragment for $dest)
784 if test -z "$uname"; then
785 if test -r $sysdep_dir/$dir/uname.c ||
786 test -r $sysdep_dir/$dir/uname.S ||
787 { test -r $sysdep_dir/$dir/syscalls.list &&
788 grep '^uname[ ]' $sysdep_dir/$dir/syscalls.list >/dev/null; }; then
795 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
797 # If we will use the generic uname implementation, we must figure out what
798 # it will say by examining the system, and write the results in config-name.h.
799 if test "$uname" = generic; then
802 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
804 if test $uname_sysname != $config_os; then
805 config_release=`echo $config_os | sed s/$uname_sysname//`
808 AC_DEFUN(LIBC_KERNEL_ID, [dnl
809 if test -r /vmunix; then
810 kernel_id=`strings /vmunix | grep UNIX`
811 elif test -r /dynix; then
812 kernel_id=`strings /dynix | grep DYNIX`
818 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
819 AC_REQUIRE([LIBC_KERNEL_ID])dnl
821 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
823 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
824 != x$config_release; then
825 # The configuration release is a substring of the kernel release.
826 libc_cv_uname_release=$kernel_release
827 elif test x$config_release != x; then
828 libc_cv_uname_release=$config_release
829 elif test x$kernel_release != x; then
830 libc_cv_uname_release=$kernel_release
832 libc_cv_uname_release=unknown
834 uname_release="$libc_cv_uname_release"
836 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
837 AC_REQUIRE([LIBC_KERNEL_ID])dnl
839 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
841 if test -n "$kernel_version"; then
842 libc_cv_uname_version="$kernel_version"
844 libc_cv_uname_version=unknown
846 uname_version="$libc_cv_uname_version"
848 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
849 config_uname=config-name.h:config-name.in
851 # For non-generic uname, we don't need to create config-name.h at all.
855 AC_MSG_CHECKING(stdio selection)
858 libio) AC_DEFINE(USE_IN_LIBIO) ;;
859 default) stdio=stdio ;;
861 AC_MSG_RESULT($stdio)
863 AC_SUBST(libc_cv_slibdir)
864 AC_SUBST(libc_cv_sysconfdir)
865 AC_SUBST(libc_cv_rootsbindir)
867 AC_SUBST(has_ldconfig)
869 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf)
870 if test $gnu_ld = yes; then
871 AC_DEFINE(HAVE_GNU_LD)
873 if test $gnu_as = yes; then
874 AC_DEFINE(HAVE_GNU_AS)
876 if test $elf = yes; then
881 if test $shared = default; then
882 if test $gnu_ld = yes; then
885 # For now we do not assume shared libs are available. In future more
886 # tests might become available.
895 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
898 config_makefile=Makefile
901 VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h`
904 if test $libc_cv_gcc_pipe_bug = yes; then
910 if test "$realCC"; then
911 sed -e 's/%{pipe:-}/%|/g' `$realCC -print-file-name=specs` >specsT
913 fi], [realCC=$realCC])
915 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, ,
916 [echo '$config_vars' >> config.make])