mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 10:00:12 +00:00
219 lines
6.6 KiB
Plaintext
219 lines
6.6 KiB
Plaintext
# Local configure fragment for sysdeps/unix/sysv/linux.
|
|
|
|
# On Linux, the default is to use libio instead of stdio.
|
|
test $stdio = default && stdio=libio
|
|
|
|
# Don't bother trying to generate any glue code to be compatible with the
|
|
# existing system library, because we are the only system library.
|
|
inhibit_glue=yes
|
|
|
|
if test -n "$sysheaders"; then
|
|
OLD_CPPFLAGS=$CPPFLAGS
|
|
CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
|
|
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) $ac_c" 1>&6
|
|
else
|
|
cat > conftest.$ac_ext <<EOF
|
|
#line 21 "configure"
|
|
#include "confdefs.h"
|
|
#include <linux/version.h>
|
|
#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
|
|
eat flaming death
|
|
#endif
|
|
EOF
|
|
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
|
|
egrep "eat flaming death" >/dev/null 2>&1; then
|
|
rm -rf conftest*
|
|
libc_cv_linux2010='TOO OLD!'
|
|
else
|
|
rm -rf conftest*
|
|
libc_cv_linux2010='2.0.10 or later'
|
|
fi
|
|
rm -f conftest*
|
|
|
|
fi
|
|
|
|
echo "$ac_t""$libc_cv_linux2010" 1>&6
|
|
if test "$libc_cv_linux2010" != '2.0.10 or later'; then
|
|
{ echo "configure: error: GNU libc requires kernel header files from
|
|
Linux 2.0.10 or later to be installed before configuring.
|
|
The kernel header files are found usually in /usr/include/asm and
|
|
/usr/include/linux; make sure these directories use files from
|
|
Linux 2.0.10 or later. This check uses <linux/version.h>, so
|
|
make sure that file was built correctly when installing the kernel header
|
|
files. To use kernel headers not from /usr/include/linux, use the
|
|
configure option --with-headers." 1>&2; exit 1; }
|
|
fi
|
|
|
|
# If the user gave a minimal version number test whether the available
|
|
# kernel headers are young enough. Additionally we have minimal
|
|
# kernel versions for some architectures.
|
|
case "$machine" in
|
|
mips*)
|
|
arch_minimum_kernel=2.2.15
|
|
;;
|
|
sh*)
|
|
arch_minimum_kernel=2.3.99
|
|
;;
|
|
ia64*)
|
|
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
|
|
echo "configure: warning: minimum kernel version reset to $arch_minimum_kernel" 1>&2
|
|
minimum_kernel=$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
|
|
echo $ac_n "checking for kernel header at least $minimum_kernel""... $ac_c" 1>&6
|
|
echo "configure:86: checking for kernel header at least $minimum_kernel" >&5
|
|
decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
|
|
cat > conftest.$ac_ext <<EOF
|
|
#line 89 "configure"
|
|
#include "confdefs.h"
|
|
#include <linux/version.h>
|
|
#if LINUX_VERSION_CODE < $decnum
|
|
eat flaming death
|
|
#endif
|
|
EOF
|
|
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
|
|
egrep "eat flaming death" >/dev/null 2>&1; then
|
|
rm -rf conftest*
|
|
libc_minimum_kernel='too old!'
|
|
else
|
|
rm -rf conftest*
|
|
libc_minimum_kernel=ok
|
|
fi
|
|
rm -f conftest*
|
|
|
|
echo "$ac_t""$libc_minimum_kernel" 1>&6
|
|
if test "$libc_minimum_kernel" = ok; then
|
|
cat >> confdefs.h <<EOF
|
|
#define __LINUX_KERNEL_VERSION $decnum
|
|
EOF
|
|
|
|
else
|
|
{ echo "configure: error: *** The available kernel headers are older than the requested
|
|
*** compatible kernel version" 1>&2; exit 1; }
|
|
fi
|
|
fi
|
|
|
|
if test -n "$sysheaders"; then
|
|
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" -o "$prefix" = "/usr/"; then
|
|
# 64bit libraries on sparc go to /lib64 and not /lib
|
|
if test "$machine" = "sparc/sparc64"; then
|
|
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
|
|
else
|
|
libc_cv_slibdir="/lib"
|
|
fi
|
|
# 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
|
|
|
|
# Under Linux the LinuxThreads add-on should be available.
|
|
case $add_ons in
|
|
# It is available. Good.
|
|
*linuxthreads*)
|
|
message=
|
|
;;
|
|
*)
|
|
message="\
|
|
*** WARNING: Are you sure you do not want to use the \`linuxthreads'
|
|
*** add-on?"
|
|
;;
|
|
esac
|
|
|
|
if test "$message"; then
|
|
if test $enable_sanity = yes; then
|
|
echo "\
|
|
*** You should not compile the GNU libc without the \`linuxthreads'
|
|
*** add-on. Not using them risks being incompatible with the
|
|
*** libraries of other systems. Consider getting the add-on and restarting
|
|
*** the configuration.
|
|
*** If you really mean to not use this add-on, run configure again
|
|
*** using the extra parameter \`--disable-sanity-checks'."
|
|
exit 1
|
|
else
|
|
echo "$message"
|
|
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*)
|
|
ldd_rewrite_script=../sysdeps/unix/sysv/linux/ldd-rewrite.sed
|
|
;;
|
|
sparc*)
|
|
ldd_rewrite_script=../sysdeps/unix/sysv/linux/sparc/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
|
|
echo $ac_n "checking for symlinks in ${ac_prefix}/include""... $ac_c" 1>&6
|
|
echo "configure:201: checking for symlinks in ${ac_prefix}/include" >&5
|
|
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
|
|
{ echo "configure: 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
|
|
${ac_prefix}/include directory out of the way." 1>&2; exit 1; }
|
|
else
|
|
echo "$ac_t""ok" 1>&6
|
|
fi
|
|
fi
|