mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 10:50:07 +00:00
358 lines
11 KiB
Plaintext
358 lines
11 KiB
Plaintext
# This file is generated from configure.in by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/unix/sysv/linux.
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# The Linux kernel headers can be found in
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# /lib/modules/$(uname -r)/build/include
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# Check whether this directory is available.
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if test -z "$sysheaders" &&
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test "x$cross_compiling" = xno &&
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test -d /lib/modules/`uname -r`/build/include; then
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sysheaders="/lib/modules/`uname -r`/build/include"
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ccheaders=`$CC -print-file-name=include`
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SYSINCLUDES="-I $sysheaders"
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fi
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# Don't bother trying to generate any glue code to be compatible with the
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# existing system library, because we are the only system library.
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inhibit_glue=yes
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if test -n "$sysheaders"; then
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OLD_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
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fi
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echo "$as_me:$LINENO: checking for egrep" >&5
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echo $ECHO_N "checking for egrep... $ECHO_C" >&6
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if test "${ac_cv_prog_egrep+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if echo a | (grep -E '(a|b)') >/dev/null 2>&1
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then ac_cv_prog_egrep='grep -E'
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else ac_cv_prog_egrep='egrep'
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fi
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fi
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echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5
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echo "${ECHO_T}$ac_cv_prog_egrep" >&6
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EGREP=$ac_cv_prog_egrep
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echo "$as_me:$LINENO: checking installed Linux kernel header files" >&5
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echo $ECHO_N "checking installed Linux kernel header files... $ECHO_C" >&6
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if test "${libc_cv_linux2010+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#include <linux/version.h>
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#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
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eat flaming death
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#endif
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_ACEOF
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if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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$EGREP "eat flaming death" >/dev/null 2>&1; then
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libc_cv_linux2010='TOO OLD!'
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else
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libc_cv_linux2010='2.0.10 or later'
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fi
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rm -f conftest*
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fi
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echo "$as_me:$LINENO: result: $libc_cv_linux2010" >&5
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echo "${ECHO_T}$libc_cv_linux2010" >&6
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if test "$libc_cv_linux2010" != '2.0.10 or later'; then
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{ { echo "$as_me:$LINENO: error: GNU libc requires kernel header files from
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Linux 2.0.10 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 2.0.10 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." >&5
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echo "$as_me: error: GNU libc requires kernel header files from
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Linux 2.0.10 or later to be installed before configuring.
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The kernel header files are found usually in /usr/include/asm and
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/usr/include/linux; make sure these directories use files from
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Linux 2.0.10 or later. This check uses <linux/version.h>, so
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make sure that file was built correctly when installing the kernel header
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files. To use kernel headers not from /usr/include/linux, use the
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configure option --with-headers." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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# If the user gave a minimal version number test whether the available
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# kernel headers are young enough. Additionally we have minimal
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# kernel versions for some architectures.
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case "$machine" in
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alpha*)
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arch_minimum_kernel=2.1.100
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libc_cv_gcc_unwind_find_fde=yes
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;;
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arm*)
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arch_minimum_kernel=2.0.10
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libc_cv_gcc_unwind_find_fde=yes
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;;
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i386*)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.0.10
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;;
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ia64*)
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arch_minimum_kernel=2.4.0
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;;
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hppa*)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.4.19
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;;
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m68k*)
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arch_minimum_kernel=2.0.10
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libc_cv_gcc_unwind_find_fde=yes
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;;
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mips*)
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arch_minimum_kernel=2.4.0
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libc_cv_gcc_unwind_find_fde=yes
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;;
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powerpc/powerpc32)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.0.10
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;;
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powerpc/powerpc64)
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arch_minimum_kernel=2.4.21
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;;
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s390/s390-32)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.2.10
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;;
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s390/s390-64)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.4.0
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;;
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sh*)
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arch_minimum_kernel=2.3.99
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libc_cv_gcc_unwind_find_fde=yes
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;;
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sparc*)
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libc_cv_gcc_unwind_find_fde=yes
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arch_minimum_kernel=2.0.10
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;;
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x86_64*)
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arch_minimum_kernel=2.4.0
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;;
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*)
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arch_minimum_kernel=2.0.10
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;;
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esac
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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 $arch_version; then
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{ echo "$as_me:$LINENO: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5
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echo "$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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if test $arch_minimum_kernel != '2.0.10'; then
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minimum_kernel=$arch_minimum_kernel
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fi
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fi
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if test -n "$minimum_kernel"; then
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echo "$as_me:$LINENO: checking for kernel header at least $minimum_kernel" >&5
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echo $ECHO_N "checking for kernel header at least $minimum_kernel... $ECHO_C" >&6
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decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
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abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
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cat >conftest.$ac_ext <<_ACEOF
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#line $LINENO "configure"
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#include "confdefs.h"
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < $decnum
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eat flaming death
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#endif
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_ACEOF
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if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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$EGREP "eat flaming death" >/dev/null 2>&1; then
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libc_minimum_kernel='too old!'
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else
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libc_minimum_kernel=ok
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fi
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rm -f conftest*
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echo "$as_me:$LINENO: result: $libc_minimum_kernel" >&5
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echo "${ECHO_T}$libc_minimum_kernel" >&6
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if test "$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 __ABI_TAG_VERSION $abinum
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_ACEOF
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else
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{ { echo "$as_me:$LINENO: error: *** The available kernel headers are older than the requested
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*** compatible kernel version" >&5
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echo "$as_me: error: *** The available kernel headers are older than the requested
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*** compatible kernel version" >&2;}
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{ (exit 1); exit 1; }; }
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fi
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fi
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# The result of the above test for the use of the FDE code is invalid if
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# the user overrides the decision about the minimum ABI.
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if test "$oldest_abi" != default && test "2.2.4" \< "$oldest_abi"; then
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libc_cv_gcc_unwind_find_fde=no
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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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# The Linux filesystem standard prescribes where to place "essential"
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# files. I.e., when the installation prefix is "/usr" we have to place
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# shared library objects and the configuration files on the root partition
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# in /lib and /etc.
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case "$prefix" in
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/usr | /usr/)
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# 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib
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case $machine in
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sparc/sparc64 | x86_64 | powerpc/powerpc64 | s390/s390-64 )
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libc_cv_slibdir="/lib64"
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if test "$libdir" = '${exec_prefix}/lib'; then
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libdir='${exec_prefix}/lib64';
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# Locale data can be shared between 32bit and 64bit libraries
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libc_cv_localedir='${exec_prefix}/lib/locale'
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fi
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;;
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*)
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libc_cv_slibdir="/lib"
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;;
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esac
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# Allow the user to override the path with --sysconfdir
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if test $sysconfdir = '${prefix}/etc'; then
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libc_cv_sysconfdir=/etc
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else
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libc_cv_sysconfdir=$sysconfdir
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fi
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libc_cv_rootsbindir="/sbin"
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;;
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esac
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# Under Linux the LinuxThreads or NPTL add-on should be available.
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case $add_ons in
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# Only one of the add-ons should be available.
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*linuxthreads*nptl*|*nptl*linuxthreads*)
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echo "\
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*** LinuxThreads and NPTL add-ons are both available. Only one must be used."
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exit 1
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;;
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# It is available. Good.
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*linuxthreads*)
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linuxthreads_missing=
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;;
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*nptl*)
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linuxthreads_missing=
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;;
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*)
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linuxthreads_missing=yes
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;;
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esac
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if test "$linuxthreads_missing"; then
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if test $enable_sanity = yes; then
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echo "\
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*** On GNU/Linux systems it is normal to compile GNU libc with the
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*** \`linuxthreads' add-on. Without that, the library will be
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*** incompatible with normal GNU/Linux systems.
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*** If you really mean to not use this add-on, run configure again
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*** using the extra parameter \`--disable-sanity-checks'."
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exit 1
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else
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echo "\
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*** WARNING: Are you sure you do not want to use the \`linuxthreads'
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*** add-on?"
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fi
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fi
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if test "$prefix" = "/usr/local" -o "$prefix" = "/usr/local/" -o "$prefix" = "NONE"; then
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if test $enable_sanity = yes; then
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echo "\
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*** On GNU/Linux systems the GNU C Library should not be installed into
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*** /usr/local since this might make your system totally unusable.
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*** We strongly advise to use a different prefix. For details read the FAQ.
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*** If you really mean to do this, run configure again using the extra
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*** parameter \`--disable-sanity-checks'."
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exit 1
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else
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echo "\
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*** WARNING: Do you really want to install the GNU C Library into /usr/local?
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*** This might make your system totally unusable, for details read the FAQ."
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fi
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fi
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# One Linux we use ldconfig.
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use_ldconfig=yes
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# We need some extensions to the `ldd' script.
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case "$machine" in
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i[3456]86* | m68*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/ldd-rewrite.sed
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;;
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ia64*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/ia64/ldd-rewrite.sed
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;;
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s390*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/s390/ldd-rewrite.sed
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;;
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sparc*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed
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;;
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x86_64*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed
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;;
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powerpc*)
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ldd_rewrite_script=../sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed
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;;
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*)
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;;
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esac
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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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echo "$as_me:$LINENO: checking for symlinks in ${ac_prefix}/include" >&5
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echo $ECHO_N "checking for symlinks in ${ac_prefix}/include... $ECHO_C" >&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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{ { echo "$as_me:$LINENO: 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." >&5
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echo "$as_me: 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." >&2;}
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{ (exit 1); exit 1; }; }
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else
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echo "$as_me:$LINENO: result: ok" >&5
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echo "${ECHO_T}ok" >&6
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fi
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fi
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