- # Local configure fragment for sysdeps/unix/sysv/linux.
-# On Linux, the default is to use libio instead of stdio.
-test $stdio = default && stdio=libio
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+ return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+ set +e
+ as_fn_set_status $1
+ exit $1
+} # as_fn_exit
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+ eval 'as_fn_arith ()
+ {
+ as_val=$(( $* ))
+ }'
+else
+ as_fn_arith ()
+ {
+ as_val=`expr "$@" || test $? -eq 1`
+ }
+fi # as_fn_arith
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+ test "X`expr 00001 : '.*\(...\)'`" = X001; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+
+
+ as_lineno_1=$LINENO as_lineno_1a=$LINENO
+ as_lineno_2=$LINENO as_lineno_2a=$LINENO
+ eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+ test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+ # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-)
+ sed -n '
+ p
+ /[$]LINENO/=
+ ' <$as_myself |
+ sed '
+ s/[$]LINENO.*/&-/
+ t lineno
+ b
+ :lineno
+ N
+ :loop
+ s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+ t loop
+ s/-\n.*//
+ ' >$as_me.lineno &&
+ chmod +x "$as_me.lineno" ||
+ { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensitive to this).
+ . "./$as_me.lineno"
+ # Exit status is that of the last command.
+ exit
+}
+
+# This file is generated from configure.in by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux.
# Don't bother trying to generate any glue code to be compatible with the
# existing system library, because we are the only system library.
inhibit_glue=yes
if test -n "$sysheaders"; then
- OLD_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS $SYSINCLUDES"
+ OLD_CPPFLAGS=$CPPFLAGS
+ CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$GREP"; then
+ ac_path_GREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in grep ggrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+ { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+ # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'GREP' >> "conftest.nl"
+ "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_GREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_GREP="$ac_path_GREP"
+ ac_path_GREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_GREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_GREP"; then
+ as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_GREP=$GREP
+fi
+
fi
-echo $ac_n "checking installed Linux kernel header files""... $ac_c" 1>&6
-echo "configure:16: checking installed Linux kernel header files" >&5
-if eval "test \"`echo '$''{'libc_cv_linux2010'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+ $as_echo_n "(cached) " >&6
else
- cat > conftest.$ac_ext <<EOF
-#line 21 "configure"
-#include "confdefs.h"
+ if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+ then ac_cv_path_EGREP="$GREP -E"
+ else
+ if test -z "$EGREP"; then
+ ac_path_EGREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in egrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+ { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+ # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'EGREP' >> "conftest.nl"
+ "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_EGREP="$ac_path_EGREP"
+ ac_path_EGREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_EGREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_EGREP"; then
+ as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_EGREP=$EGREP
+fi
+
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking installed Linux kernel header files" >&5
+$as_echo_n "checking installed Linux kernel header files... " >&6; }
+if ${libc_cv_linux2010+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
#include <linux/version.h>
-int main() {
-#if LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
+#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
eat flaming death
#endif
-; return 0; }
-EOF
-if { (eval echo configure:30: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
- rm -rf conftest*
- libc_cv_linux2010='2.0.10 or later'
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "eat flaming death" >/dev/null 2>&1; then :
libc_cv_linux2010='TOO OLD!'
+else
+ libc_cv_linux2010='2.0.10 or later'
fi
rm -f conftest*
-fi
-echo "$ac_t""$libc_cv_linux2010" 1>&6
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux2010" >&5
+$as_echo "$libc_cv_linux2010" >&6; }
if test "$libc_cv_linux2010" != '2.0.10 or later'; then
- { echo "configure: error: GNU libc requires kernel header files from
+ as_fn_error $? "GNU libc requires kernel header files from
Linux 2.0.10 or later to be installed before configuring.
The kernel header files are found usually in /usr/include/asm and
/usr/include/linux; make sure these directories use files from
Linux 2.0.10 or later. This check uses <linux/version.h>, so
make sure that file was built correctly when installing the kernel header
files. To use kernel headers not from /usr/include/linux, use the
-configure option --with-headers." 1>&2; exit 1; }
+configure option --with-headers." "$LINENO" 5
+fi
+
+# If the user gave a minimal version number test whether the available
+# kernel headers are young enough. Additionally we have minimal
+# kernel versions for some architectures. If a previous configure fragment
+# set arch_minimum_kernel already, let that override our defaults here.
+# Note that we presume such a fragment has set libc_cv_gcc_unwind_find_fde
+# if appropriate too.
+test -n "$arch_minimum_kernel" ||
+case "$machine" in
+ i386*)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.0.10
+ ;;
+ powerpc/powerpc32)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.0.10
+ ;;
+ powerpc/powerpc64)
+ arch_minimum_kernel=2.4.21
+ ;;
+ s390/s390-32)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.2.10
+ ;;
+ s390/s390-64)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.4.0
+ ;;
+ sh*)
+ arch_minimum_kernel=2.3.99
+ libc_cv_gcc_unwind_find_fde=yes
+ ;;
+ sparc/sparc64*)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.4.21
+ ;;
+ sparc*)
+ libc_cv_gcc_unwind_find_fde=yes
+ arch_minimum_kernel=2.0.10
+ ;;
+ x86_64*)
+ arch_minimum_kernel=2.4.0
+ ;;
+ *)
+ arch_minimum_kernel=2.0.10
+ ;;
+esac
+if test -n "$minimum_kernel"; then
+
+ user_version=$((`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
+ arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
+
+ if test $user_version -lt $arch_version; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5
+$as_echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;}
+ minimum_kernel=$arch_minimum_kernel
+ fi
+else
+ if test $arch_minimum_kernel != '2.0.10'; then
+ minimum_kernel=$arch_minimum_kernel
+ fi
+fi
+
+if test -n "$minimum_kernel"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for kernel header at least $minimum_kernel" >&5
+$as_echo_n "checking for kernel header at least $minimum_kernel... " >&6; }
+ decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
+ abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < $decnum
+eat flaming death
+#endif
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "eat flaming death" >/dev/null 2>&1; then :
+ libc_minimum_kernel='too old!'
+else
+ libc_minimum_kernel=ok
fi
+rm -f conftest*
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_minimum_kernel" >&5
+$as_echo "$libc_minimum_kernel" >&6; }
+ if test "$libc_minimum_kernel" = ok; then
+ cat >>confdefs.h <<_ACEOF
+#define __LINUX_KERNEL_VERSION $decnum
+_ACEOF
+
+ cat >>confdefs.h <<_ACEOF
+#define __ABI_TAG_VERSION $abinum
+_ACEOF
+
+ else
+ as_fn_error $? "*** The available kernel headers are older than the requested
+*** compatible kernel version" "$LINENO" 5
+ fi
+fi
+
+# The result of the above test for the use of the FDE code is invalid if
+# the user overrides the decision about the minimum ABI.
+if test "$oldest_abi" != default && test "2.2.4" \< "$oldest_abi"; then
+ libc_cv_gcc_unwind_find_fde=no
+fi
+
if test -n "$sysheaders"; then
- CFLAGS=$OLD_CFLAGS
+ CPPFLAGS=$OLD_CPPFLAGS
fi
# The Linux filesystem standard prescribes where to place "essential"
# files. I.e., when the installation prefix is "/usr" we have to place
# shared library objects and the configuration files on the root partition
# in /lib and /etc.
-if test "$prefix" = "/usr"; then
- libc_cv_slibdir="/lib"
- libc_cv_sysconfdir="/etc"
+case "$prefix" in
+/usr | /usr/)
+ # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
+ # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
+ # and libc_cv_localedir.
+ test -n "$libc_cv_slibdir" || \
+ case $machine in
+ sparc/sparc64 | x86_64 | powerpc/powerpc64 | s390/s390-64)
+ libc_cv_slibdir="/lib64"
+ if test "$libdir" = '${exec_prefix}/lib'; then
+ libdir='${exec_prefix}/lib64';
+ # Locale data can be shared between 32bit and 64bit libraries
+ libc_cv_localedir='${exec_prefix}/lib/locale'
+ fi
+ ;;
+ *)
+ libc_cv_slibdir="/lib"
+ ;;
+ esac
+ # Allow the user to override the path with --sysconfdir
+ if test $sysconfdir = '${prefix}/etc'; then
+ libc_cv_sysconfdir=/etc
+ else
+ libc_cv_sysconfdir=$sysconfdir
+ fi
libc_cv_rootsbindir="/sbin"
-fi
+ ;;
+esac
-# Under Linux the LinuxThreads and crypt add-on should be available.
+# Under Linux the NPTL add-on should be available.
case $add_ons in
- # Both are available. Good.
- *linuxthreads*crypt* | *crypt*linuxthreads*)
- message=
- ;;
- *linuxthreads*)
- message="\
-*** WARNING:
-*** Are you sure you do not want to use the \`crypt' add-on?"
- ;;
- *crypt*)
- message="\
-*** WARNING:
-*** Are you sure you do not want to use the \`linuxthread' add-on?"
+ # It is available. Good.
+ *nptl*)
+ nptl_missing=
;;
*)
- message="\
-*** WARNING: Are you sure you do not want to use the \`linuxthreads'
-*** and \`crypt' add-ons?"
+ nptl_missing=yes
;;
esac
-if test "$message"; then
+if test "$nptl_missing"; then
if test $enable_sanity = yes; then
echo "\
-*** You should not compile the GNU libc without the \`linuxthreads' and
-*** \`crypt' add-on. Not using them risks to be incompatible with the
-*** libraries of other systems. Consider getting the add-ons and restart
-*** the configuration.
-*** If you really mean to avoid those add-ons run configure again, now
+*** On GNU/Linux systems it is normal to compile GNU libc with the
+*** \`nptl' add-on. Without that, the library will be
+*** incompatible with normal GNU/Linux systems.
+*** If you really mean to not use this add-on, run configure again
*** using the extra parameter \`--disable-sanity-checks'."
exit 1
else
- echo "$message"
+ echo "\
+*** WARNING: Are you sure you do not want to use the \`nptl'
+*** add-on?"
fi
fi
-# Check whether `ldconfig' sources are available. This will go away as soon
-# as ldconfig is available in GNU libc.
-if test -f $srcdir/elf/ldconfig.c; then
- has_ldconfig=yes
+if test "$prefix" = "/usr/local" -o "$prefix" = "/usr/local/" -o "$prefix" = "NONE"; then
+ if test $enable_sanity = yes; then
+ echo "\
+*** On GNU/Linux systems the GNU C Library should not be installed into
+*** /usr/local since this might make your system totally unusable.
+*** We strongly advise to use a different prefix. For details read the FAQ.
+*** If you really mean to do this, run configure again using the extra
+*** parameter \`--disable-sanity-checks'."
+ exit 1
+ else
+ echo "\
+*** WARNING: Do you really want to install the GNU C Library into /usr/local?
+*** This might make your system totally unusable, for details read the FAQ."
+ fi
fi
+
+# One Linux we use ldconfig.
+use_ldconfig=yes
+
# We need some extensions to the `ldd' script.
case "$machine" in
- i[3456]86* | m68* | sparc/sparc32)
- ldd_rewrite_script=../sysdeps/unix/sysv/linux/ldd-rewrite.sed
+ i[3456]86*)
+ ldd_rewrite_script=sysdeps/unix/sysv/linux/ldd-rewrite.sed
+ ;;
+ s390*)
+ ldd_rewrite_script=sysdeps/unix/sysv/linux/s390/ldd-rewrite.sed
+ ;;
+ sparc*)
+ ldd_rewrite_script=sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed
+ ;;
+ x86_64*)
+ ldd_rewrite_script=sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed
+ ;;
+ powerpc*)
+ ldd_rewrite_script=sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed
;;
*)
;;
esac
+
+if test $host = $build; then
+ # If $prefix/include/{net,scsi} are symlinks, make install will
+ # clobber what they're linked to (probably a kernel tree).
+ # test -L ought to work on all Linux boxes.
+ if test "x$prefix" != xNONE; then
+ ac_prefix=$prefix
+ else
+ ac_prefix=$ac_default_prefix
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for symlinks in ${ac_prefix}/include" >&5
+$as_echo_n "checking for symlinks in ${ac_prefix}/include... " >&6; }
+ ac_message=
+ if test -L ${ac_prefix}/include/net; then
+ ac_message="$ac_message
+ ${ac_prefix}/include/net is a symlink"
+ fi
+ if test -L ${ac_prefix}/include/scsi; then
+ ac_message="$ac_message
+ ${ac_prefix}/include/scsi is a symlink"
+ fi
+ if test -n "$ac_message"; then
+ as_fn_error $? "$ac_message
+\`make install' will destroy the target of the link(s).
+Delete the links and re-run configure, or better still, move the entire
+${ac_prefix}/include directory out of the way." "$LINENO" 5
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+ fi
+fi
+
+# We have inlined syscalls.
+$as_echo "#define HAVE_INLINED_SYSCALLS 1" >>confdefs.h
+