173 lines
5.8 KiB
Plaintext
173 lines
5.8 KiB
Plaintext
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# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/unix/sysv/linux.
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if test -n "$sysheaders"; then
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OLD_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking installed Linux kernel header files" >&5
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$as_echo_n "checking installed Linux kernel header files... " >&6; }
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if ${libc_cv_linux320+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <linux/version.h>
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#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (3 *65536+ 2 *256+ 0) /* 3.2.0 */
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# error kernel headers missing or too old
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_cpp "$LINENO"; then :
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libc_cv_linux320='3.2.0 or later'
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else
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libc_cv_linux320='missing or too old!'
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fi
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rm -f conftest.err conftest.i conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux320" >&5
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$as_echo "$libc_cv_linux320" >&6; }
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if test "$libc_cv_linux320" != '3.2.0 or later'; then
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as_fn_error $? "GNU libc requires kernel header files from
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Linux 3.2.0 or later to be installed before configuring.
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The kernel header files are found usually in /usr/include/asm and
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/usr/include/linux; make sure these directories use files from
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Linux 3.2.0 or later. This check uses <linux/version.h>, so
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make sure that file was built correctly when installing the kernel header
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files. To use kernel headers not from /usr/include/linux, use the
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configure option --with-headers." "$LINENO" 5
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fi
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# If the user gave a minimal version number test whether the available
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# kernel headers are young enough. Additionally we have minimal
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# kernel versions for some architectures. If a previous configure fragment
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# set arch_minimum_kernel already, let that override our defaults here.
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# Note that we presume such a fragment has set libc_cv_gcc_unwind_find_fde
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# if appropriate too.
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test -n "$arch_minimum_kernel" || arch_minimum_kernel=3.2.0
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if test -n "$minimum_kernel"; then
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user_version=$((`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
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arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
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if test $user_version -lt $arch_version; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5
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$as_echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;}
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minimum_kernel=$arch_minimum_kernel
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fi
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else
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minimum_kernel=$arch_minimum_kernel
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for kernel header at least $minimum_kernel" >&5
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$as_echo_n "checking for kernel header at least $minimum_kernel... " >&6; }
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decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
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abinumstr=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1.\2.\3/'`;
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abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < $decnum
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# error kernel headers too old
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#endif
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_cpp "$LINENO"; then :
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libc_minimum_kernel=ok
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else
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libc_minimum_kernel='too old!'
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fi
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rm -f conftest.err conftest.i conftest.$ac_ext
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_minimum_kernel" >&5
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$as_echo "$libc_minimum_kernel" >&6; }
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if test "$libc_minimum_kernel" = ok; then
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cat >>confdefs.h <<_ACEOF
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#define __LINUX_KERNEL_VERSION $decnum
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_ACEOF
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cat >>confdefs.h <<_ACEOF
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#define __LINUX_KERNEL_VERSION_STR "$abinumstr"
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_ACEOF
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cat >>confdefs.h <<_ACEOF
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#define __ABI_TAG_VERSION $abinum
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_ACEOF
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else
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as_fn_error $? "*** The available kernel headers are older than the requested
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*** compatible kernel version" "$LINENO" 5
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fi
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if test -n "$sysheaders"; then
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CPPFLAGS=$OLD_CPPFLAGS
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fi
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if test "$prefix" = "/usr/local" -o "$prefix" = "/usr/local/" -o "$prefix" = "NONE"; then
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if test $enable_sanity = yes; then
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echo "\
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*** On GNU/Linux systems the GNU C Library should not be installed into
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*** /usr/local since this might make your system totally unusable.
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*** We strongly advise to use a different prefix. For details read the FAQ.
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*** If you really mean to do this, run configure again using the extra
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*** parameter \`--disable-sanity-checks'."
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exit 1
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else
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echo "\
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*** WARNING: Do you really want to install the GNU C Library into /usr/local?
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*** This might make your system totally unusable, for details read the FAQ."
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fi
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fi
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# One Linux we use ldconfig.
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use_ldconfig=yes
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if test $host = $build; then
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# If $prefix/include/{net,scsi} are symlinks, make install will
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# clobber what they're linked to (probably a kernel tree).
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# test -L ought to work on all Linux boxes.
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if test "x$prefix" != xNONE; then
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ac_prefix=$prefix
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else
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ac_prefix=$ac_default_prefix
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for symlinks in ${ac_prefix}/include" >&5
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$as_echo_n "checking for symlinks in ${ac_prefix}/include... " >&6; }
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ac_message=
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if test -L ${ac_prefix}/include/net; then
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ac_message="$ac_message
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${ac_prefix}/include/net is a symlink"
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fi
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if test -L ${ac_prefix}/include/scsi; then
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ac_message="$ac_message
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${ac_prefix}/include/scsi is a symlink"
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fi
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if test -n "$ac_message"; then
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as_fn_error $? "$ac_message
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\`make install' will destroy the target of the link(s).
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Delete the links and re-run configure, or better still, move the entire
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${ac_prefix}/include directory out of the way." "$LINENO" 5
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
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$as_echo "ok" >&6; }
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fi
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fi
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# We have inlined syscalls.
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$as_echo "#define HAVE_INLINED_SYSCALLS 1" >>confdefs.h
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