update from main archive 961206

Sat Dec  7 03:24:36 1996  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Discard error message from test in test for
	bash-2.0.

	* io/getpw.c: Don't apply getcwd on user supplied buffer.
	Instead always use temporary buffer and only copy the result.
	Patch by HJ Lu.
	* stdlib/canonicalize.c: Likewise.

	* libio/fileops.c: Change comments according to libg++2.8b5.
	* libio/iosetvbuf.c: Follow change in libg++-2.8b5 to clear
	unbuffered flag.
	Reported by HJ Lu.

	* manual/nss.texi: Correct prototypes.

	* misc/syslog.c: Make reentrant.  Catch SIGPIPE signal to prevent
	crash if syslog daemon is restarted.

	* stdlib/rand_r.c: New file.  Implementation of POSIX.2 function
	rand_r.
	* stdlib/Makefile (routines): Add rand_r.

	* sysdeps/stub/libc-lock.h: Define __libc_lock_trylock and
	__libc_mutex_lock.

	* configure.in: Add --disable-sanity-check option.
	* sysdeps/unix/sysv/linux/configure.in: If linuxthreads or
	des-crypt are not available and --disbale-sanity-check is not
	given abort with a message.

Thu Dec  5 19:19:53 1996  Richard Henderson  <rth@tamu.edu>

	* posix/glob.c: Tests against STDC_HEADERS should also test
	__GNU_LIBRARY__.

Thu Dec  5 16:20:55 1996  Ulrich Drepper  <drepper@cygnus.com>

	* misc/err.c (vwarn): Set errno again before using %m format.

Thu Dec  5 10:14:05 1996  Andreas Jaeger  <aj@arthur.pfalz.de>

	* grp/grp.h: Add declaration of __getgrent_r.

	* io/fts.c (fts_build): Remove "register" from variables dirbuf
	and dp since their address is needed.

	* sysdeps/posix/getcwd.c (__getcwd): Remove "register" from
	variable d since d's address is needed.

	* misc/tst-dirname.c (main): Provide prototype.
	* misc/ioctltst.c (main): Dito.

	* Makefile: Add gnu/lib-names.h to install-others before including
	Makerules.

Wed Dec  4 16:00:09 1996  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sys/socketvar.h: New file.  Simply use
	<sys/socket.h>.
	* sysdeps/unix/sysv/linux/Dist: Add sys/socketvar.h.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=inet)]: Add
	sys/socketvar.h to sysdep_headers.

	since the value might be outside the range of the `long int'.

1 files changed, 47 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index c4937923a9..b6474a940c 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -29,3 +29,50 @@ Linux LIBC_LINUX_VERSION or later.  This check uses <linux/version.h>, so
 make sure that file was built correctly when installing the kernel header
 files.])
 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