diff --git a/ChangeLog b/ChangeLog
index 00b809f..5768488 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,8 @@
 	can lead to problems, e.g. if your makefile relies on "cp -p".
 	* README.template: Document the issue with "cp -p".
 
+	* config.guess, config.sub: Updated.
+
 2000-06-22  Paul D. Smith  <psmith@gnu.org>
 
 	* job.c (start_job_command): Increment commands_started before the
diff --git a/NEWS b/NEWS
index e20ec54..a89b75c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 GNU make NEWS                                               -*-indented-text-*-
   History of user-visible changes.
-  27 Mar 2000
+  23 Jun 2000
 
 Copyright (C) 1992,93,94,95,96,97,98,99,2000 Free Software Foundation, Inc.
 See the end for copying conditions.
@@ -14,8 +14,15 @@
 
 Version 3.79.1
 
-* .SECONDARY with no prerequisites now causes all targets to be treated
-  as .SECONDARY, not just those listed in the makefile.
+* .SECONDARY with no prerequisites now prevents any target from being
+  removed because make thinks it's an intermediate file, not just those
+  listed in the makefile.
+
+* New configure option --disable-nsec-timestamps will keep make from
+  using sub-second timestamps on systems which support it.  If your
+  build process depends on proper timestamp-preserving behavior of tools
+  like "cp -p" you might need this option, since "cp -p" (right now)
+  doesn't preserve the sub-second portion of the timestamp.
 
 Version 3.79
 
diff --git a/config.guess b/config.guess
index 6b4ad41..4994964 100644
--- a/config.guess
+++ b/config.guess
@@ -2,7 +2,9 @@
 # Attempt to guess a canonical system name.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
 #   Free Software Foundation, Inc.
-#
+
+version='2000-06-13'
+
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
@@ -36,6 +38,46 @@
 # (but try to keep the structure clean).
 #
 
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of this system.
+
+Operation modes:
+  -h, --help               print this help, then exit
+  -V, --version            print version number, then exit"
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case "$1" in
+    --version | --vers* | -V )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       exec >&2
+       echo "$me: invalid option $1"
+       echo "$help"
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
 # Use $HOST_CC if defined. $CC may point to a cross-compiler
 if test x"$CC_FOR_BUILD" = x; then
   if test x"$HOST_CC" != x; then
@@ -360,7 +402,7 @@
     AViiON:dgux:*:*)
         # DG/UX returns AViiON for all architectures
         UNAME_PROCESSOR=`/usr/bin/uname -p`
-	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110]
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
 	then
 	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
 	       [ ${TARGET_BINARY_INTERFACE}x = x ]
@@ -458,6 +500,8 @@
 	    9000/[34]?? )         HP_ARCH=m68k ;;
 	    9000/[678][0-9][0-9])
               sed 's/^              //' << EOF >$dummy.c
+
+              #define _HPUX_SOURCE
               #include <stdlib.h>
               #include <unistd.h>
 
@@ -614,12 +658,6 @@
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
 	exit 0 ;;
     *:FreeBSD:*:*)
-	if test -x /usr/bin/objformat; then
-	    if test "elf" = "`/usr/bin/objformat`"; then
-		echo ${UNAME_MACHINE}-unknown-freebsdelf`echo ${UNAME_RELEASE}|sed -e 's/[-_].*//'`
-		exit 0
-	    fi
-	fi
 	echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit 0 ;;
     *:OpenBSD:*:*)
@@ -649,6 +687,9 @@
     *:GNU:*:*)
 	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
 	exit 0 ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit 0 ;;
     *:Linux:*:*)
 
 	# The BFD linker knows what the default object file format is, so
@@ -670,6 +711,10 @@
 		echo "${UNAME_MACHINE}-pc-linux-gnuaout"
 		exit 0
 		;;
+	  elf_i?86)
+		echo "${UNAME_MACHINE}-pc-linux"
+		exit 0
+		;;
 	  i?86coff)
 		echo "${UNAME_MACHINE}-pc-linux-gnucoff"
 		exit 0
@@ -726,6 +771,10 @@
 		echo powerpc-unknown-linux-gnu${LIBC}
 		exit 0
 		;;
+	  shelf_linux)
+		echo "${UNAME_MACHINE}-unknown-linux-gnu"
+		exit 0
+		;;
 	esac
 
 	if test "${UNAME_MACHINE}" = "alpha" ; then
@@ -1018,24 +1067,27 @@
     *:Rhapsody:*:*)
 	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
 	exit 0 ;;
-    Power*:Mac*OS:*:*)
-	echo powerpc-apple-macos${UNAME_RELEASE}
-	exit 0 ;;
-    *:Mac*OS:*:*)
-	echo ${UNAME_MACHINE}-apple-macos${UNAME_RELEASE}
+    *:Darwin:*:*)
+	echo `uname -p`-apple-darwin${UNAME_RELEASE}
 	exit 0 ;;
     *:procnto*:*:* | *:QNX:[0123456789]*:*)
 	if test "${UNAME_MACHINE}" = "x86pc"; then
 		UNAME_MACHINE=pc
 	fi
 	echo `uname -p`-${UNAME_MACHINE}-nto-qnx
-	exit 0;;
+	exit 0 ;;
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit 0 ;;
     NSR-W:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit 0 ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit 0 ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit 0 ;;
 esac
 
 #echo '(No uname command or uname output not recognized.)' 1>&2
@@ -1175,6 +1227,47 @@
     esac
 fi
 
-#echo '(Unable to guess system type)' 1>&2
+cat >&2 <<EOF
+$0: unable to guess system type
+
+The $version version of this script cannot recognize your system type.
+Please download the most up to date version of the config scripts:
+
+    ftp://ftp.gnu.org/pub/gnu/config/
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess version = $version
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
 
 exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "version='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.sub b/config.sub
index db00445..6e5f1a8 100644
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,9 @@
 # Configuration validation subroutine script, version 1.1.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
 #   Free Software Foundation, Inc.
-#
+
+version='2000-06-20'
+
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
 # can handle that machine.  It does not imply ALL GNU software can.
@@ -27,7 +29,6 @@
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 
-# Written by Per Bothner <bothner@cygnus.com>.
 # Please send patches to <config-patches@gnu.org>.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
@@ -50,23 +51,54 @@
 #	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
 # It is wrong to echo any other type of specification.
 
-if [ x$1 = x ]
-then
-	echo Configuration name missing. 1>&2
-	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
-	echo "or     $0 ALIAS" 1>&2
-	echo where ALIAS is a recognized configuration type. 1>&2
-	exit 1
-fi
+me=`echo "$0" | sed -e 's,.*/,,'`
 
-# First pass through any local machine types.
-case $1 in
-	*local*)
-		echo $1
-		exit 0
-		;;
-	*)
-	;;
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help               print this help, then exit
+  -V, --version            print version number, then exit"
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case "$1" in
+    --version | --vers* | -V )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       exec >&2
+       echo "$me: invalid option $1"
+       echo "$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit 0;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
 esac
 
 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
@@ -99,7 +131,7 @@
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple)
+	-apple | -axis)
 		os=
 		basic_machine=$1
 		;;
@@ -176,9 +208,11 @@
 		| 580 | i960 | h8300 \
 		| x86 | ppcbe | mipsbe | mipsle | shbe | shle | armbe | armle \
 		| hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \
+		| hppa64 \
 		| alpha | alphaev[4-8] | alphaev56 | alphapca5[67] \
 		| alphaev6[78] \
-		| we32k | ns16k | clipper | i370 | sh | powerpc | powerpcle \
+		| we32k | ns16k | clipper | i370 | sh | sh[34] \
+		| powerpc | powerpcle \
 		| 1750a | dsp16xx | pdp11 | mips16 | mips64 | mipsel | mips64el \
 		| mips64orion | mips64orionel | mipstx39 | mipstx39el \
 		| mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \
@@ -193,7 +227,7 @@
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
-	i[34567]86)
+	i[234567]86)
 	  basic_machine=$basic_machine-pc
 	  ;;
 	# Object if more than one company name word.
@@ -203,13 +237,14 @@
 		;;
 	# Recognize the basic CPU types with company name.
 	# FIXME: clean up the formatting here.
-	vax-* | tahoe-* | i[34567]86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
+	vax-* | tahoe-* | i[234567]86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
 	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
 	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
 	      | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \
 	      | xmp-* | ymp-* \
 	      | x86-* | ppcbe-* | mipsbe-* | mipsle-* | shbe-* | shle-* | armbe-* | armle-* \
-	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* | hppa2.0n-* \
+	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* \
+	      | hppa2.0n-* | hppa64-* \
 	      | alpha-* | alphaev[4-8]-* | alphaev56-* | alphapca5[67]-* \
 	      | alphaev6[78]-* \
 	      | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \
@@ -221,7 +256,8 @@
 	      | mipstx39-* | mipstx39el-* | mcore-* \
 	      | f301-* | armv*-* | s390-* | sv1-* | t3e-* \
 	      | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \
-	      | thumb-* | v850-* | d30v-* | tic30-* | c30-* | fr30-* )
+	      | thumb-* | v850-* | d30v-* | tic30-* | c30-* | fr30-* \
+	      | bs2000-* | tic54x-* | c54x-*)
 		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
@@ -319,6 +355,9 @@
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
 	da30 | da30-*)
 		basic_machine=m68k-da30
 		;;
@@ -630,7 +669,7 @@
 	pentium | p5 | k5 | k6 | nexen)
 		basic_machine=i586-pc
 		;;
-	pentiumpro | p6 | 6x86)
+	pentiumpro | p6 | 6x86 | athlon)
 		basic_machine=i686-pc
 		;;
 	pentiumii | pentium2)
@@ -639,7 +678,7 @@
 	pentium-* | p5-* | k5-* | k6-* | nexen-*)
 		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	pentiumpro-* | p6-* | 6x86-*)
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
 		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pentiumii-* | pentium2-*)
@@ -754,6 +793,10 @@
 		basic_machine=t3e-cray
 		os=-unicos
 		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
 	tx39)
 		basic_machine=mipstx39-unknown
 		;;
@@ -855,6 +898,9 @@
 	we32k)
 		basic_machine=we32k-att
 		;;
+	sh3 | sh4)
+		base_machine=sh-unknown
+		;;
 	sparc | sparcv9)
 		basic_machine=sparc-sun
 		;;
@@ -935,7 +981,8 @@
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
-	      | -interix* | -uwin* | -rhapsody* | -opened* | -openstep* | -oskit*)
+	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1262,3 +1309,11 @@
 esac
 
 echo $basic_machine$os
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "version='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure.in b/configure.in
index 56346f0..a76bf31 100644
--- a/configure.in
+++ b/configure.in
@@ -150,7 +150,7 @@
 
 # The presence of the following is not meant to imply
 # that make necessarily works on those systems.
-AC_CHECK_LIB(sun, getpwnam)
+AC_SEARCH_LIBS(getpwnam, sun)
 
 AC_SUBST(REMOTE) REMOTE=stub
 make_try_customs=no