glibc/sysdeps/unix/sysv/linux/configure
Ulrich Drepper feb3c93435 update from main archive 961208
Mon Dec  9 03:39:30 1996  Ulrich Drepper  <drepper@cygnus.com>

	* config.make.in (defines): Add @USE_NEW_MALLOC@.
	* Makefile.in: Define USE_NEW_MALLOC to -DUSE_NEW_MALLOC if
	we use the new malloc.

	* malloc.h: Use either <malloc/malloc.h> or <new-malloc/malloc.h>
	depending on USE_NEW_MALLOC.

	Fix some more POSIX.1 problems.
	* libio/fileops.c (_IO_file_underflow): Set errno to EBADF if used
	on a write-only stream.
	(_IO_file_overflow): Set errno to EBADF if used on a read-only
	stream.
	(_IO_file_seekoff): POSIX.1 requires that fseek() after an fflush()
	call really positions the file offset to the correct position
	and no read-ahead happens.

	* locale/C-monetary.c: Set mon_grouping file to "" and "\377"
	to pass POSIX test suite.
	* stdio-common/vfprintf.c: Handle empty string as grouping command
	correctly.
	* stdlib/grouping.h: Likewise.

	* misc/syslog.c: Case first argument of __libc_cleanup_region_start.

	* signal/sigsetops.h: Update copyright.  Don't include ansidecl.h.

	* stdio-common/printf_fp.c: Update copyright.

Sun Dec  8 16:39:28 1996  Andreas Jaeger  <aj@arthur.pfalz.de>

	* time/Makefile: Compile ap.c with NO_MCHECK flag if new-malloc
	used (not otherwise).

	* misc/syslog.c (vsyslog): Cast argument to __libc_cleanup_region
	to get Hurd macros right.
1996-12-09 03:15:25 +00:00

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# 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 < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
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 "$libc_cv_linux2010" != '2.0.10 or later'; then
{ echo "configure: error: GNU libc requires kernel header files from
Linux 2.0.10 or later to be installed before configuring.
The kernel header files are found usually in /usr/include/asm and
/usr/include/linux; make sure these directories use files from
Linux 2.0.10 or later. This check uses <linux/version.h>, so
make sure that file was built correctly when installing the kernel header
files." 1>&2; exit 1; }
fi
# The Linux filesystem standard prescribes where to place "essential"
# files. I.e., when the installation prefix is "/usr" we have to place
# shared library objects and the configuation files on the root partition
# in /lib and /etc.
if test "$prefix" = "/usr"; then
libc_cv_slibdir="/lib"
libc_cv_sysconfdir="/etc"
fi
# Under Linux the LinuxThreads and crypt add-on should be available.
case $add_ons in
# Both are available. Good.
*linuxthreads*des-crypt* | *des-crypt*linuxthreads*)
message=
;;
*linuxthreads*)
message="\
*** WARNING:
*** Are you sure you do not want to use the \`crypt' add-on?"
;;
*des-crypt*)
message="\
*** WARNING:
*** Are you sure you do not want to use the \`LinuxThread' add-on?"
;;
*)
message="\
*** WARNING: Are you sure you do not want to use the \`LinuxThreads'
*** and \`crypt' add-ons?"
;;
esac
if test "$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