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 version 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) add_ons=`echo $srcdir/*/configure | \
92 sed -e "s!$srcdir/!!g" -e 's!/configure!!g'`;;
93 *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;;
96 AC_CONFIG_SUBDIRS($add_ons)
98 if test x"$add_ons" != x; then
100 # Test whether such a subdir really exists.
101 if test -d $srcdir/$f; then
102 add_ons_pfx="$add_ons_pfx $f/"
104 AC_MSG_ERROR(add-on directory \"$f\" does not exist)
111 # The way shlib-versions is used to generate soversions.mk uses a
112 # fairly simplistic model for name recognition that can't distinguish
113 # i486-pc-linux-gnu fully from i486-pc-gnu. So we mutate a $host_os
114 # of `gnu*' here to be `gnu-gnu*' just so that shlib-versions can
115 # tell. This doesn't get used much beyond that, so it's fairly safe.
120 host_os=`echo $host_os | sed -e 's/gnu/gnu-gnu/'`
124 ### I put this here to prevent those annoying emails from people who cannot
125 ### read and try to compile glibc on unsupported platforms. --drepper
127 ### By using the undocumented --enable-hacker-mode option for configure
128 ### one can skip this test to make the configuration not fail for unsupported
131 if test -z "$enable_hacker_mode"; then
136 echo "*** The GNU C library is currently not available for this platform."
137 echo "*** So far nobody cared to port it and if there is no volunteer it"
138 echo "*** might never happen. So, if you have interest to see glibc on"
139 echo "*** this platform visit"
140 echo "*** http://www.gnu.org/software/libc/porting.html"
141 echo "*** and join the group of porters"
148 # We keep the original values in `$config_*' and never modify them, so we
149 # can write them unchanged into config.make. Everything else uses
150 # $machine, $vendor, and $os, and changes them whenever convenient.
151 config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os
153 # Some configurations imply other options.
155 gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
156 # These systems always use GNU tools.
157 gnu_ld=yes gnu_as=yes ;;
160 # i586-linuxaout is mangled into i586-pc-linux-gnuaout
161 linux*ecoff* | linux*aout* | gnu*aout* | gnu*ecoff*)
163 gnu* | linux* | sysv4* | solaris2*)
164 # These systems (almost) always use the ELF format.
169 machine=$config_machine
170 vendor=$config_vendor
173 dnl We need to use [ and ] for other purposes for a while now.
175 # Expand the configuration machine name into a subdirectory by architecture
176 # type and particular chip.
178 a29k | am29000) base_machine=a29k machine=a29k ;;
179 alpha*) base_machine=alpha machine=alpha/$machine ;;
180 hppa*) base_machine=hppa machine=hppa/$machine ;;
181 i[3456]86) base_machine=i386 machine=i386/$machine ;;
182 m680?0) base_machine=m68k machine=m68k/$machine ;;
183 m68k) base_machine=m68k machine=m68k/m68020 ;;
184 m88???) base_machine=m88k machine=m88k/$machine ;;
185 m88k) base_machine=m88k machine=m88k/m88100 ;;
186 mips*) base_machine=mips machine=mips/$machine ;;
187 mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
189 base_machine=sparc machine=sparc/sparc32 ;;
190 sparcv8 | supersparc | hypersparc)
191 base_machine=sparc machine=sparc/sparc32/sparcv8 ;;
192 sparc64) base_machine=sparc machine=sparc/sparc64 ;;
195 AC_SUBST(base_machine)
197 # Compute the list of sysdep directories for this configuration.
198 # This can take a while to compute.
199 sysdep_dir=$srcdir/sysdeps
200 AC_MSG_CHECKING(sysdep dirs)
201 dnl We need to use [ and ] for other purposes for a while now.
203 # Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
204 os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
209 netbsd* | 386bsd* | freebsd* | bsdi*)
210 base_os=unix/bsd/bsd4.4 ;;
211 osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
213 sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
216 base_os=unix/sysv/sysv4 ;;
218 base_os=standalone ;;
223 # For sunos4.1.1, try sunos4.1.1, then sunos4.1, then sunos4, then sunos.
226 while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
230 o=`echo $tail | sed 's/[0-9]*$//'`
231 if test $o != $tail; then
234 # For linux-gnu, try linux-gnu, then linux.
235 o=`echo $tail | sed 's/-.*$//'`
236 if test $o != $tail; then
240 # For unix/sysv/sysv4, try unix/sysv/sysv4, then unix/sysv, then unix.
243 while b=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$b"; do
249 # For sparc/sparcv9, try sparc/sparcv9 and then sparc.
252 while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
254 # Prepend the machine's FPU directory unless --without-fp.
255 if test "$with_fp" = yes; then
262 dnl We are done with glob and regexp uses of [ and ]; return to autoconf.
265 # Find what sysdep directories exist.
267 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
268 for d in $add_ons_pfx ''; do
269 for b in $base ''; do
270 for m0 in $mach ''; do
271 for v in /$vendor ''; do
272 for o in /$ostry ''; do
273 for m in $mach ''; do
274 if test "$m0$b$v$o$m"; then
275 try="${d}sysdeps$m0$b$v$o$m"
276 test -n "$enable_debug_configure" &&
277 echo "$0 [DEBUG]: try $try" >&2
280 *) dest=$srcdir/$try ;;
282 if test -d $dest; then
283 sysnames="$sysnames $try"
284 { test -n "$o" || test -n "$b"; } && os_used=t
285 { test -n "$m" || test -n "$m0"; } && machine_used=t
296 if test -z "$os_used" && test "$os" != none; then
297 AC_MSG_ERROR(Operating system $os is not supported.)
299 if test -z "$machine_used" && test "$machine" != none; then
300 AC_MSG_ERROR(The $machine is not supported.)
303 # We have now validated the configuration.
306 # If using ELF, look for an `elf' subdirectory of each machine directory.
307 # We prepend these rather than inserting them whereever the machine appears
308 # because things specified by the machine's ELF ABI should override
309 # OS-specific things, and should always be the same for any OS on the
310 # machine (otherwise what's the point of an ABI?).
311 if test "$elf" = yes; then
313 for d in $add_ons_pfx ''; do
316 *) xsrcdir=$srcdir/ ;;
319 if test -d $xsrcdir${d}sysdeps$m/elf; then
320 elf_dirs="$elf_dirs ${d}sysdeps$m/elf"
324 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
328 # Expand the list of system names into a full list of directories
329 # from each element's parent name and Implies file (if present).
332 while test $# -gt 0; do
336 case " $names " in *" $name "*)
337 # Already in the list.
341 # Report each name as we discover it, so there is no long pause in output.
342 echo $ac_n "$name $ac_c" >&AC_FD_MSG
344 name_base=`echo $name | sed -e 's@\(.*sysdeps\)/.*@\1@'`
348 *) xsrcdir=$srcdir/ ;;
350 test -n "$enable_debug_configure" &&
351 echo "[DEBUG]: name/Implies $xsrcdir$name/Implies" >&2
353 if test -f $xsrcdir$name/Implies; then
354 # Collect more names from the `Implies' file (removing comments).
355 implied_candidate="`sed 's/#.*$//' < $xsrcdir$name/Implies`"
357 for x in $implied_candidate; do
358 if test -d $xsrcdir$name_base/$x; then
359 implied="$implied $name_base/$x";
361 AC_MSG_WARN($name/Implies specifies nonexistent $x)
368 # Add NAME to the list of names.
371 # Find the parent of NAME, using the empty string if it has none.
373 parent="`echo $name | sed -n -e 's=/[^/]*$==' -e '/sysdeps$/q' -e p`"
376 # Add the names implied by NAME, and NAME's parent (if it has one), to
377 # the list of names to be processed (the argument list). We prepend the
378 # implied names to the list and append the parent. We want implied
379 # directories to come before further directories inferred from the
380 # configuration components; this ensures that for sysv4, unix/common
381 # (implied by unix/sysv/sysv4) comes before unix/sysv (in ostry (here $*)
383 sysnames="`echo $implied $* $parent`"
384 test -n "$sysnames" && set $sysnames
387 # Add the default directories.
388 sysnames="$names sysdeps/generic sysdeps/stub"
390 # The other names were emitted during the scan.
391 AC_MSG_RESULT(sysdeps/generic sysdeps/stub)
397 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
398 # The makefiles need to use a different form to find it in $srcdir.
399 INSTALL='\$(..)./install-sh -c'
402 AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :)
406 if test $host != $build; then
407 AC_CHECK_PROGS(BUILD_CC, gcc cc)
409 AC_SUBST(cross_compiling)
411 AC_CHECK_TOOL(AR, ar)
412 AC_CHECK_TOOL(RANLIB, ranlib, :)
414 AC_PATH_PROG(BASH, bash, no)
415 if test "$BASH" != no &&
416 $BASH -c 'test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then
417 libc_cv_have_bash2=yes
419 libc_cv_have_bash2=no
421 AC_SUBST(libc_cv_have_bash2)
423 dnl We need a ksh compatible shell for tzselect.
424 if test "$BASH" = no; then
425 AC_PATH_PROG(KSH, ksh, no)
426 if test "$KSH" = no; then
436 AC_SUBST(libc_cv_have_ksh)
438 AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
439 echo '#include <stddef.h>
440 FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
441 if eval "$ac_cpp conftest.c 2>/dev/null" \
442 | grep '^FOOBAR.*unsigned.*FOOBAR$' >/dev/null; then
443 libc_cv_signed_size_t=no
445 libc_cv_signed_size_t=yes
448 if test $libc_cv_signed_size_t = yes; then
449 dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
450 cat >> confdefs.h <<\EOF
452 #define __SIZE_TYPE__ unsigned
456 AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
458 [#define __need_size_t
459 #define __need_wchar_t
462 #include <stddef.h>], [size_t size; wchar_t wchar;
464 #error stddef.h ignored __need_*
466 if (&size == NULL || &wchar == NULL) abort ();],
467 libc_cv_friendly_stddef=yes,
468 libc_cv_friendly_stddef=no)])
469 if test $libc_cv_friendly_stddef = yes; then
470 config_vars="$config_vars
471 override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
474 AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
475 libc_cv_need_minus_P, [dnl
476 cat > conftest.S <<EOF
477 #include "confdefs.h"
478 /* Nothing whatsoever. */
480 if ${CC-cc} $CFLAGS -c conftest.S 2>/dev/null; then
481 libc_cv_need_minus_P=no
483 libc_cv_need_minus_P=yes
486 if test $libc_cv_need_minus_P = yes; then
487 config_vars="$config_vars
488 asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
491 # gcc 2.7.x has a bug where if -pipe is set, the assembler will always
492 # be told to read stdin. This causes the compiler to hang when fed an
494 if test $ac_cv_prog_gcc = yes; then
495 case `${CC-cc} -v 2>&1` in
497 # We must check this even if -pipe is not given here, because the user
498 # might do `make CFLAGS=-pipe'.
499 AC_CACHE_CHECK(for gcc 2.7.x -pipe bug, libc_cv_gcc_pipe_bug, [dnl
500 cp /dev/null conftest.s
501 cat >conftest1.s <<EOF
504 if ${CC-cc} -pipe -c conftest.s <conftest1.s 2>/dev/null; then
505 libc_cv_gcc_pipe_bug=no
507 libc_cv_gcc_pipe_bug=yes
510 if test $libc_cv_gcc_pipe_bug = yes; then
511 makeCC="${CC-cc} -B\$(common-objpfx)"
513 CFLAGS=`echo $CFLAGS |sed 's/-pipe//'`
515 *) libc_cv_gcc_pipe_bug=no;;
518 libc_cv_gcc_pipe_bug=no
522 AC_CACHE_CHECK(for assembler global-symbol directive,
523 libc_cv_asm_global_directive, [dnl
524 libc_cv_asm_global_directive=UNKNOWN
525 for ac_globl in .globl .global; do
526 cat > conftest.s <<EOF
531 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
532 libc_cv_asm_global_directive=${ac_globl}
535 test $libc_cv_asm_global_directive != UNKNOWN && break
537 if test $libc_cv_asm_global_directive = UNKNOWN; then
538 AC_MSG_ERROR(cannot determine asm global directive)
540 AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
543 AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
544 cat > conftest.s <<EOF
547 .set glibc_conftest_frobozz,foo
548 $libc_cv_asm_global_directive glibc_conftest_frobozz
550 # The alpha-dec-osf1 assembler gives only a warning for `.set'
551 # (but it doesn't work), so we must do a linking check to be sure.
552 cat > conftest1.c <<\EOF
553 extern int glibc_conftest_frobozz;
554 main () { printf ("%d\n", glibc_conftest_frobozz); }
556 if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
557 -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
558 libc_cv_asm_set_directive=yes
560 libc_cv_asm_set_directive=no
563 if test $libc_cv_asm_set_directive = yes; then
564 AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
567 if test $elf = yes; then
568 AC_CACHE_CHECK(for .previous assembler directive,
569 libc_cv_asm_previous_directive, [dnl
570 cat > conftest.s <<EOF
574 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
575 libc_cv_asm_previous_directive=yes
577 libc_cv_asm_previous_directive=no
580 if test $libc_cv_asm_previous_directive = yes; then
581 AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
583 AC_CACHE_CHECK(for .popsection assembler directive,
584 libc_cv_asm_popsection_directive, [dnl
585 cat > conftest.s <<EOF
586 .pushsection foo_section
589 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
590 libc_cv_asm_popsection_directive=yes
592 libc_cv_asm_popsection_directive=no
595 if test $libc_cv_asm_popsection_directive = yes; then
596 AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
601 if test $elf != yes; then
602 AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
603 [AC_TRY_COMPILE(, [asm (".section .init");
604 asm (".section .fini");
606 libc_cv_have_initfini=yes,
607 libc_cv_have_initfini=no)])
608 AC_SUBST(libc_cv_have_initfini)dnl
609 if test $libc_cv_have_initfini = yes; then
610 AC_DEFINE(HAVE_INITFINI)
614 dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
615 AC_DEFUN(AC_CHECK_ASM_UNDERSCORE,
616 [cat > conftest.$ac_ext <<EOF
617 dnl This sometimes fails to find confdefs.h, for some reason.
618 dnl [#]line __oline__ "[$]0"
619 [#]line __oline__ "configure"
620 #include "confdefs.h"
621 void underscore_test(void) {
624 if AC_TRY_EVAL(ac_compile); then
625 if grep _underscore_test conftest* >/dev/null; then
626 ifelse([$1], , :, [rm -f conftest*
629 ifelse([$2], , , [rm -f conftest*
633 echo "configure: failed program was:" >&AC_FD_CC
634 cat conftest.$ac_ext >&AC_FD_CC
635 ifelse([$2], , , [rm -f conftest*
640 if test $elf = yes; then
641 libc_cv_asm_underscores=no
643 if test $ac_cv_prog_cc_works = yes; then
644 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
645 [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
646 libc_cv_asm_underscores=yes,
647 libc_cv_asm_underscores=no)])
649 AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
650 [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes,
651 libc_cv_asm_underscores=no)])
654 if test $libc_cv_asm_underscores = no; then
655 AC_DEFINE(NO_UNDERSCORES)
658 if test $elf = yes; then
659 libc_cv_weak_symbols=yes
660 libc_cv_asm_weak_directive=yes
661 libc_cv_asm_weakext_directive=no
663 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
665 cat > conftest.s <<EOF
667 ${libc_cv_asm_global_directive} foo
672 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
673 libc_cv_asm_weak_directive=yes
675 libc_cv_asm_weak_directive=no
679 if test $libc_cv_asm_weak_directive = no; then
680 AC_CACHE_CHECK(for assembler .weakext directive,
681 libc_cv_asm_weakext_directive,
683 cat > conftest.s <<EOF
685 ${libc_cv_asm_global_directive} foo
690 if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
691 libc_cv_asm_weakext_directive=yes
693 libc_cv_asm_weakext_directive=no
700 if test $libc_cv_asm_weak_directive = yes; then
701 AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
702 elif test $libc_cv_asm_weakext_directive = yes; then
703 AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
706 AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
707 cat > conftest.c <<\EOF
712 dnl No \ in command here because it ends up inside ''.
713 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
714 -nostdlib -nostartfiles -Wl,--no-whole-archive
715 -o conftest conftest.c 1>&AC_FD_CC]); then
716 libc_cv_ld_no_whole_archive=yes
718 libc_cv_ld_no_whole_archive=no
721 AC_SUBST(libc_cv_ld_no_whole_archive)dnl
723 AC_CACHE_CHECK(for gcc -fno-exceptions, libc_cv_gcc_no_exceptions, [dnl
724 cat > conftest.c <<\EOF
729 dnl No \ in command here because it ends up inside ''.
730 if AC_TRY_COMMAND([${CC-cc} $CFLAGS
731 -nostdlib -nostartfiles -fno-exceptions
732 -o conftest conftest.c 1>&AC_FD_CC]); then
733 libc_cv_gcc_no_exceptions=yes
735 libc_cv_gcc_no_exceptions=no
738 AC_SUBST(libc_cv_gcc_no_exceptions)dnl
740 if test "$base_machine" = alpha ; then
741 AC_CACHE_CHECK(for function ..ng prefix, libc_cv_gcc_alpha_ng_prefix, [dnl
742 cat > conftest.c <<\EOF
746 if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo..ng" > /dev/null]);
748 libc_cv_gcc_alpha_ng_prefix=yes
750 libc_cv_gcc_alpha_ng_prefix=no
753 if test $libc_cv_gcc_alpha_ng_prefix = yes ; then
754 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "$")
756 AC_DEFINE(ASM_ALPHA_NG_SYMBOL_PREFIX, "")
760 ### End of automated tests.
761 ### Now run sysdeps configure fragments.
763 # sysdeps configure fragments may set these with files to be linked below.
767 # Iterate over all the sysdep directories we will use, running their
768 # configure fragments, and looking for a uname implementation.
770 for dir in $sysnames; do
773 *) dest=$srcdir/$dir ;;
775 if test -r $dest/configure; then
776 AC_MSG_RESULT(running configure fragment for $dest)
780 if test -z "$uname"; then
781 if test -r $sysdep_dir/$dir/uname.c ||
782 test -r $sysdep_dir/$dir/uname.S ||
783 { test -r $sysdep_dir/$dir/syscalls.list &&
784 grep '^uname[ ]' $sysdep_dir/$dir/syscalls.list >/dev/null; }; then
791 AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
793 # If we will use the generic uname implementation, we must figure out what
794 # it will say by examining the system, and write the results in config-name.h.
795 if test "$uname" = generic; then
798 uname_sysname=`echo $config_os | sed 's/[0-9.]*$//'`
800 if test $uname_sysname != $config_os; then
801 config_release=`echo $config_os | sed s/$uname_sysname//`
804 AC_DEFUN(LIBC_KERNEL_ID, [dnl
805 if test -r /vmunix; then
806 kernel_id=`strings /vmunix | grep UNIX`
807 elif test -r /dynix; then
808 kernel_id=`strings /dynix | grep DYNIX`
814 AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
815 AC_REQUIRE([LIBC_KERNEL_ID])dnl
817 kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
819 if test x`echo "$config_release" | sed "s/^$kernel_release//"` \
820 != x$config_release; then
821 # The configuration release is a substring of the kernel release.
822 libc_cv_uname_release=$kernel_release
823 elif test x$config_release != x; then
824 libc_cv_uname_release=$config_release
825 elif test x$kernel_release != x; then
826 libc_cv_uname_release=$kernel_release
828 libc_cv_uname_release=unknown
830 uname_release="$libc_cv_uname_release"
832 AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
833 AC_REQUIRE([LIBC_KERNEL_ID])dnl
835 kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
837 if test -n "$kernel_version"; then
838 libc_cv_uname_version="$kernel_version"
840 libc_cv_uname_version=unknown
842 uname_version="$libc_cv_uname_version"
844 AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
845 config_uname=config-name.h:config-name.in
847 # For non-generic uname, we don't need to create config-name.h at all.
851 AC_MSG_CHECKING(stdio selection)
854 libio) AC_DEFINE(USE_IN_LIBIO) ;;
855 default) stdio=stdio ;;
857 AC_MSG_RESULT($stdio)
859 AC_SUBST(libc_cv_slibdir)
860 AC_SUBST(libc_cv_sysconfdir)
861 AC_SUBST(libc_cv_rootsbindir)
863 AC_SUBST(has_ldconfig)
865 AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf)
866 if test $gnu_ld = yes; then
867 AC_DEFINE(HAVE_GNU_LD)
869 if test $gnu_as = yes; then
870 AC_DEFINE(HAVE_GNU_AS)
872 if test $elf = yes; then
877 if test $shared = default; then
878 if test $gnu_ld = yes; then
881 # For now we do not assume shared libs are available. In future more
882 # tests might become available.
891 if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
894 config_makefile=Makefile
897 VERSION=`sed -e 's/^#define VERSION "\([^"]*\)"/\1/p' -e d < $srcdir/version.h`
900 if test $libc_cv_gcc_pipe_bug = yes; then
906 if test "$realCC"; then
907 sed -e 's/%{pipe:-}/%|/g' `$realCC -print-file-name=specs` >specsT
909 fi], [realCC=$realCC])
911 AC_OUTPUT(config.make glibcbug ${config_makefile} ${config_uname}, ,
912 [echo '$config_vars' >> config.make])