104 lines
3.2 KiB
Plaintext
104 lines
3.2 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
|
|
|
|
# We also use the new malloc by default.
|
|
test $malloc = default && malloc=new-malloc
|
|
|
|
# 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
|
|
|
|
echo $ac_n "checking installed Linux kernel header files""... $ac_c" 1>&6
|
|
echo "configure:15: checking installed Linux kernel header files" >&5
|
|
if eval "test \"`echo '$''{'libc_cv_linux2010'+set}'`\" = set"; then
|
|
echo $ac_n "(cached) $ac_c" 1>&6
|
|
else
|
|
cat > conftest.$ac_ext <<EOF
|
|
#line 20 "configure"
|
|
#include "confdefs.h"
|
|
#include <linux/version.h>
|
|
int main() {
|
|
#if LINUX_VERSION_CODE < ( *65536+ 0 *256+ 10) /* .0.10 */
|
|
eat flaming death
|
|
#endif
|
|
; return 0; }
|
|
EOF
|
|
if { (eval echo configure:29: \"$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*
|
|
libc_cv_linux2010='TOO OLD!'
|
|
fi
|
|
rm -f conftest*
|
|
fi
|
|
|
|
echo "$ac_t""$libc_cv_linux2010" 1>&6
|
|
if test "$libc_cv_linux2010" != '2.0.10 or later'; then
|
|
{ echo "configure: error: GNU libc requires kernel header files from
|
|
Linux 2.0.10 or later to be installed before configuring.
|
|
The kernel header files are found usually in /usr/include/asm and
|
|
/usr/include/linux; make sure these directories use files from
|
|
Linux 2.0.10 or later. This check uses <linux/version.h>, so
|
|
make sure that file was built correctly when installing the kernel header
|
|
files." 1>&2; exit 1; }
|
|
fi
|
|
|
|
# The Linux filesystem standard prescribes where to place "essential"
|
|
# files. I.e., when the installation prefix is "/usr" we have to place
|
|
# shared library objects and the configuration files on the root partition
|
|
# in /lib and /etc.
|
|
if test "$prefix" = "/usr"; then
|
|
libc_cv_slibdir="/lib"
|
|
libc_cv_sysconfdir="/etc"
|
|
libc_cv_rootsbindir="/sbin"
|
|
fi
|
|
|
|
# Under Linux the LinuxThreads and crypt add-on should be available.
|
|
case $add_ons in
|
|
# Both are available. Good.
|
|
*linuxthreads*crypt* | *crypt*linuxthreads*)
|
|
message=
|
|
;;
|
|
*linuxthreads*)
|
|
message="\
|
|
*** WARNING:
|
|
*** Are you sure you do not want to use the \`crypt' add-on?"
|
|
;;
|
|
*crypt*)
|
|
message="\
|
|
*** WARNING:
|
|
*** Are you sure you do not want to use the \`linuxthread' add-on?"
|
|
;;
|
|
*)
|
|
message="\
|
|
*** WARNING: Are you sure you do not want to use the \`linuxthreads'
|
|
*** and \`crypt' add-ons?"
|
|
;;
|
|
esac
|
|
|
|
if test "$message"; then
|
|
if test $enable_sanity = yes; then
|
|
echo "\
|
|
*** You should not compile the GNU libc without the \`linuxthreads' and
|
|
*** \`crypt' add-on. Not using them risks to be incompatible with the
|
|
*** libraries of other systems. Consider getting the add-ons and restart
|
|
*** the configuration.
|
|
*** If you really mean to avoid those add-ons run configure again, now
|
|
*** using the extra parameter \`--disable-sanity-checks'."
|
|
exit 1
|
|
else
|
|
echo "$message"
|
|
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
|
|
fi
|