diff --git a/config.guess b/config.guess
index 471f5a5..a05ca70 100644
--- a/config.guess
+++ b/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2016 Free Software Foundation, Inc.
+#   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2016-02-11'
+timestamp='2017-09-16'
 
 # 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
@@ -15,7 +15,7 @@ timestamp='2016-02-11'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -27,7 +27,7 @@ timestamp='2016-02-11'
 # Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 #
 # Please send patches to <config-patches@gnu.org>.
 
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2016 Free Software Foundation, Inc.
+Copyright 1992-2017 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -186,9 +186,12 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
 	esac
 	# The Operating System including object format, if it has switched
-	# to ELF recently, or will in the future.
+	# to ELF recently (or will in the future) and ABI.
 	case "${UNAME_MACHINE_ARCH}" in
-	    arm*|earm*|i386|m68k|ns32k|sh3*|sparc|vax)
+	    earm*)
+		os=netbsdelf
+		;;
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
 		eval $set_cc_for_build
 		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
 			| grep -q __ELF__
@@ -256,6 +259,9 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:Sortix:*:*)
 	echo ${UNAME_MACHINE}-unknown-sortix
 	exit ;;
+    *:Redox:*:*)
+	echo ${UNAME_MACHINE}-unknown-redox
+	exit ;;
     alpha:OSF1:*:*)
 	case $UNAME_RELEASE in
 	*4.0)
@@ -312,15 +318,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	exitcode=$?
 	trap '' 0
 	exit $exitcode ;;
-    Alpha\ *:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# Should we change UNAME_MACHINE based on the output of uname instead
-	# of the specific Alpha model?
-	echo alpha-pc-interix
-	exit ;;
-    21064:Windows_NT:50:3)
-	echo alpha-dec-winnt3.5
-	exit ;;
     Amiga*:UNIX_System_V:4.0:*)
 	echo m68k-unknown-sysv4
 	exit ;;
@@ -386,7 +383,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# This test works for both compilers.
 	if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
 	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
-		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		(CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
 		grep IS_64BIT_ARCH >/dev/null
 	    then
 		SUN_ARCH=x86_64
@@ -684,7 +681,7 @@ EOF
 		    exit (0);
 		}
 EOF
-		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    (CCOPTS="" $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
 		    test -z "$HP_ARCH" && HP_ARCH=hppa
 		fi ;;
 	esac
@@ -701,7 +698,7 @@ EOF
 	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
 	    # => hppa64-hp-hpux11.23
 
-	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
 		grep -q __LP64__
 	    then
 		HP_ARCH=hppa2.0w
@@ -834,10 +831,11 @@ EOF
 	UNAME_PROCESSOR=`/usr/bin/uname -p`
 	case ${UNAME_PROCESSOR} in
 	    amd64)
-		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
-	    *)
-		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
 	esac
+	echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit ;;
     *:MidnightBSD:*:*)
 	UNAME_PROCESSOR=`/usr/bin/uname -p`
@@ -860,10 +858,6 @@ EOF
     *:MSYS*:*)
 	echo ${UNAME_MACHINE}-pc-msys
 	exit ;;
-    i*:windows32*:*)
-	# uname -m includes "-pc" on this system.
-	echo ${UNAME_MACHINE}-mingw32
-	exit ;;
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
 	exit ;;
@@ -879,27 +873,12 @@ EOF
 		echo ia64-unknown-interix${UNAME_RELEASE}
 		exit ;;
 	esac ;;
-    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
-	echo i${UNAME_MACHINE}-pc-mks
-	exit ;;
-    8664:Windows_NT:*)
-	echo x86_64-pc-mks
-	exit ;;
-    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
-	# UNAME_MACHINE based on the output of uname instead of i386?
-	echo i586-pc-interix
-	exit ;;
     i*:UWIN*:*)
 	echo ${UNAME_MACHINE}-pc-uwin
 	exit ;;
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
 	echo x86_64-unknown-cygwin
 	exit ;;
-    p*:CYGWIN*:*)
-	echo powerpcle-unknown-cygwin
-	exit ;;
     prep*:SunOS:5.*:*)
 	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
@@ -909,7 +888,7 @@ EOF
 	exit ;;
     *:GNU/*:*:*)
 	# other systems with GNU libc and userland
-	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
 	exit ;;
     i*86:Minix:*:*)
 	echo ${UNAME_MACHINE}-pc-minix
@@ -1006,6 +985,9 @@ EOF
 	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
 	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
 	;;
+    mips64el:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
     openrisc*:Linux:*:*)
 	echo or1k-unknown-linux-${LIBC}
 	exit ;;
@@ -1038,6 +1020,9 @@ EOF
     ppcle:Linux:*:*)
 	echo powerpcle-unknown-linux-${LIBC}
 	exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
     s390:Linux:*:* | s390x:Linux:*:*)
 	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
 	exit ;;
@@ -1285,6 +1270,9 @@ EOF
     SX-8R:SUPER-UX:*:*)
 	echo sx8r-nec-superux${UNAME_RELEASE}
 	exit ;;
+    SX-ACE:SUPER-UX:*:*)
+	echo sxace-nec-superux${UNAME_RELEASE}
+	exit ;;
     Power*:Rhapsody:*:*)
 	echo powerpc-apple-rhapsody${UNAME_RELEASE}
 	exit ;;
@@ -1300,14 +1288,21 @@ EOF
 	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
 	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
 		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
-		    grep IS_64BIT_ARCH >/dev/null
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_64BIT_ARCH >/dev/null
 		then
 		    case $UNAME_PROCESSOR in
 			i386) UNAME_PROCESSOR=x86_64 ;;
 			powerpc) UNAME_PROCESSOR=powerpc64 ;;
 		    esac
 		fi
+		# On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+		if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_PPC >/dev/null
+		then
+		    UNAME_PROCESSOR=powerpc
+		fi
 	    fi
 	elif test "$UNAME_PROCESSOR" = i386 ; then
 	    # Avoid executing cc on OS X 10.9, as it ships with a stub
@@ -1331,15 +1326,18 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
-    NEO-?:NONSTOP_KERNEL:*:*)
+    NEO-*:NONSTOP_KERNEL:*:*)
 	echo neo-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
-    NSR-?:NONSTOP_KERNEL:*:*)
+    NSR-*:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     *:NonStop-UX:*:*)
 	echo mips-compaq-nonstopux
 	exit ;;
@@ -1395,7 +1393,7 @@ EOF
 	echo i386-pc-xenix
 	exit ;;
     i*86:skyos:*:*)
-	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE} | sed -e 's/ .*$//'`
 	exit ;;
     i*86:rdos:*:*)
 	echo ${UNAME_MACHINE}-pc-rdos
@@ -1414,18 +1412,17 @@ esac
 cat >&2 <<EOF
 $0: unable to guess system type
 
-This script, last modified $timestamp, has failed to recognize
-the operating system you are using. It is advised that you
-download the most up to date version of the config scripts from
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
 
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
-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.
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
 
 config.guess timestamp = $timestamp
 
diff --git a/config.h.in b/config.h.in
index 51fa1fc..f3f1b37 100644
--- a/config.h.in
+++ b/config.h.in
@@ -102,6 +102,12 @@
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
+/* Define to 1 if `st_blocks' is a member of `struct stat'. */
+#undef HAVE_STRUCT_STAT_ST_BLOCKS
+
+/* Define to 1 if `st_rdev' is a member of `struct stat'. */
+#undef HAVE_STRUCT_STAT_ST_RDEV
+
 /* Define to 1 if you have the `swab' function. */
 #undef HAVE_SWAB
 
diff --git a/config.sub b/config.sub
index 6f126a0..ec385cc 100644
--- a/config.sub
+++ b/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2016 Free Software Foundation, Inc.
+#   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2016-01-01'
+timestamp='2017-09-22'
 
 # 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
@@ -15,7 +15,7 @@ timestamp='2016-01-01'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -33,7 +33,7 @@ timestamp='2016-01-01'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
@@ -67,7 +67,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2016 Free Software Foundation, Inc.
+Copyright 1992-2017 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -117,7 +117,7 @@ case $maybe_os in
   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
   linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
   knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
-  kopensolaris*-gnu* | \
+  kopensolaris*-gnu* | cloudabi*-eabi* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
@@ -229,9 +229,6 @@ case $os in
 	-ptx*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
 		;;
-	-windowsnt*)
-		os=`echo $os | sed -e 's/windowsnt/winnt/'`
-		;;
 	-psos*)
 		os=-psos
 		;;
@@ -263,7 +260,7 @@ case $basic_machine in
 	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
-	| i370 | i860 | i960 | ia64 \
+	| i370 | i860 | i960 | ia16 | ia64 \
 	| ip2k | iq2000 \
 	| k1om \
 	| le32 | le64 \
@@ -301,6 +298,7 @@ case $basic_machine in
 	| open8 | or1k | or1knd | or32 \
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pru \
 	| pyramid \
 	| riscv32 | riscv64 \
 	| rl78 | rx \
@@ -314,6 +312,7 @@ case $basic_machine in
 	| ubicom32 \
 	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| visium \
+	| wasm32 \
 	| we32k \
 	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
@@ -387,7 +386,7 @@ case $basic_machine in
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
 	| hexagon-* \
-	| i*86-* | i860-* | i960-* | ia64-* \
+	| i*86-* | i860-* | i960-* | ia16-* | ia64-* \
 	| ip2k-* | iq2000-* \
 	| k1om-* \
 	| le32-* | le64-* \
@@ -428,6 +427,7 @@ case $basic_machine in
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pru-* \
 	| pyramid-* \
 	| riscv32-* | riscv64-* \
 	| rl78-* | romp-* | rs6000-* | rx-* \
@@ -444,6 +444,7 @@ case $basic_machine in
 	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
 	| vax-* \
 	| visium-* \
+	| wasm32-* \
 	| we32k-* \
 	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
@@ -643,6 +644,14 @@ case $basic_machine in
 		basic_machine=m68k-bull
 		os=-sysv3
 		;;
+	e500v[12])
+		basic_machine=powerpc-unknown
+		os=$os"spe"
+		;;
+	e500v[12]-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=$os"spe"
+		;;
 	ebmon29k)
 		basic_machine=a29k-amd
 		os=-ebmon
@@ -938,6 +947,9 @@ case $basic_machine in
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
+	nsx-tandem)
+		basic_machine=nsx-tandem
+		;;
 	op50n-* | op60c-*)
 		basic_machine=hppa1.1-oki
 		os=-proelf
@@ -1022,7 +1034,7 @@ case $basic_machine in
 	ppc-* | ppcbe-*)
 		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	ppcle | powerpclittle | ppc-le | powerpc-little)
+	ppcle | powerpclittle)
 		basic_machine=powerpcle-unknown
 		;;
 	ppcle-* | powerpclittle-*)
@@ -1032,7 +1044,7 @@ case $basic_machine in
 		;;
 	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+	ppc64le | powerpc64little)
 		basic_machine=powerpc64le-unknown
 		;;
 	ppc64le-* | powerpc64little-*)
@@ -1233,6 +1245,9 @@ case $basic_machine in
 		basic_machine=a29k-wrs
 		os=-vxworks
 		;;
+	wasm32)
+		basic_machine=wasm32-unknown
+		;;
 	w65*)
 		basic_machine=w65-wdc
 		os=-none
@@ -1241,6 +1256,9 @@ case $basic_machine in
 		basic_machine=hppa1.1-winbond
 		os=-proelf
 		;;
+	x64)
+		basic_machine=x86_64-pc
+		;;
 	xbox)
 		basic_machine=i686-pc
 		os=-mingw32
@@ -1348,8 +1366,8 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-	# First match some system type aliases
-	# that might get confused with valid system types.
+	# First match some system type aliases that might get confused
+	# with valid system types.
 	# -solaris* is a basic system type, with this one exception.
 	-auroraux)
 		os=-auroraux
@@ -1369,9 +1387,9 @@ case $os in
 	-gnu/linux*)
 		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
 		;;
-	# First accept the basic system types.
+	# Now accept the basic system types.
 	# The portable systems comes first.
-	# Each alternative MUST END IN A *, to match a version number.
+	# Each alternative MUST end in a * to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
@@ -1387,9 +1405,9 @@ case $os in
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
 	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
@@ -1399,7 +1417,7 @@ case $os in
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
 	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
-	      | -onefs* | -tirtos*)
+	      | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1531,6 +1549,8 @@ case $os in
 		;;
 	-nacl*)
 		;;
+	-ios)
+		;;
 	-none)
 		;;
 	*)
@@ -1626,6 +1646,9 @@ case $basic_machine in
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	pru-*)
+		os=-elf
+		;;
 	*-be)
 		os=-beos
 		;;
diff --git a/configure b/configure
index c33967d..0a503fa 100755
--- a/configure
+++ b/configure
@@ -2030,6 +2030,63 @@ rm -f conftest.val
 
 } # ac_fn_c_compute_int
 
+# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
+# ----------------------------------------------------
+# Tries to find if the field MEMBER exists in type AGGR, after including
+# INCLUDES, setting cache variable VAR accordingly.
+ac_fn_c_check_member ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+$as_echo_n "checking for $2.$3... " >&6; }
+if eval \${$4+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (sizeof ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  eval "$4=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$4
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_member
+
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -6171,6 +6228,26 @@ $as_echo "#define IS_UNIX 1" >>confdefs.h
 $as_echo "#define NDEBUG 1" >>confdefs.h
 
 
+ac_fn_c_check_member "$LINENO" "struct stat" "st_rdev" "ac_cv_member_struct_stat_st_rdev" "$ac_includes_default"
+if test "x$ac_cv_member_struct_stat_st_rdev" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_STAT_ST_RDEV 1
+_ACEOF
+
+
+fi
+ac_fn_c_check_member "$LINENO" "struct stat" "st_blocks" "ac_cv_member_struct_stat_st_blocks" "$ac_includes_default"
+if test "x$ac_cv_member_struct_stat_st_blocks" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_STAT_ST_BLOCKS 1
+_ACEOF
+
+
+fi
+
+
 for ac_func in strftime gethostname gethostid
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
diff --git a/configure.ac b/configure.ac
index 5d7a0b1..2efec78 100644
--- a/configure.ac
+++ b/configure.ac
@@ -139,6 +139,9 @@ AC_DEFINE(IS_UNIX, 1, [Is a unix type platform])
 dnl whether or not to generate debuging code?
 AC_DEFINE(NDEBUG, 1, [don't generate debuging code])
 
+dnl look for struct stat members that aren't always there
+AC_CHECK_MEMBERS([struct stat.st_rdev, struct stat.st_blocks])
+
 dnl #############################
 dnl Checks for standard functions
 dnl #############################
diff --git a/src/core/file.h b/src/core/file.h
index da9f45b..6b50a87 100644
--- a/src/core/file.h
+++ b/src/core/file.h
@@ -163,12 +163,22 @@ public:
     static bool IsAbsolutePath(const TSTRING& in);
 };
 
+class cRedoxPath
+{
+public:
+    static TSTRING AsPosix(const TSTRING& in);
+    static TSTRING AsNative(const TSTRING& in);
+    static bool IsAbsolutePath(const TSTRING& in);
+};
+
 #if IS_DOS_DJGPP
 #define cDevicePath cDosPath
 #elif IS_AROS
 #define cDevicePath cArosPath
 #elif IS_RISCOS
 #define cDevicePath cRiscosPath
+#elif IS_REDOX
+#define cDevicePath cRedoxPath
 #endif
 
 
diff --git a/src/core/file_unix.cpp b/src/core/file_unix.cpp
index ae9fed9..963bc9e 100644
--- a/src/core/file_unix.cpp
+++ b/src/core/file_unix.cpp
@@ -522,7 +522,7 @@ TSTRING cDosPath::BackupName( const TSTRING& in )
     return path;
 }
 
-    
+/////////////////////////////////////////////////////////////////////////
 bool cArosPath::IsAbsolutePath(const TSTRING& in)
 {
     if (in.empty())
@@ -569,7 +569,7 @@ TSTRING cArosPath::AsNative( const TSTRING& in )
     return out;
 }
 
-
+/////////////////////////////////////////////////////////////////////////
 bool cRiscosPath::IsAbsolutePath(const TSTRING& in)
 {
     if (in.empty())
@@ -631,3 +631,51 @@ TSTRING cRiscosPath::AsNative( const TSTRING& in )
 #endif
 }
 
+
+/////////////////////////////////////////////////////////////////////////
+bool cRedoxPath::IsAbsolutePath(const TSTRING& in)
+{
+    if (in.empty())
+        return false;
+    
+    if (in[0] == '/')
+        return true;
+
+    if (in.find(":") != std::string::npos)
+        return true;
+
+    return false;
+}
+
+// For paths of type file:/dir/file
+TSTRING cRedoxPath::AsPosix( const TSTRING& in )
+{
+    if (in[0] == '/')
+    {
+        return in;
+    }
+
+    TSTRING out = IsAbsolutePath(in) ? '/' + in : in;
+    std::string::size_type colon = out.find_first_of(":");
+    if( colon != std::string::npos )
+        out.erase(colon, 1);
+    return out;
+}
+
+TSTRING cRedoxPath::AsNative( const TSTRING& in )
+{
+    if (in[0] != '/')
+    {
+        return in;
+    }
+
+    std::string::size_type drive = in.find_first_not_of("/");
+    TSTRING out = (drive != std::string::npos) ? in.substr(drive) : in;
+    TSTRING::size_type slash = out.find_first_of('/');
+    if(slash != std::string::npos)
+        out.insert(slash, ":");
+    else
+        out.append(":/");
+
+    return out;
+}
diff --git a/src/core/platform.h b/src/core/platform.h
index f6f09b8..87a904f 100644
--- a/src/core/platform.h
+++ b/src/core/platform.h
@@ -83,6 +83,7 @@
 #define OS_AROS         0x0508
 #define OS_RTEMS        0x0509   
 #define OS_RISCOS       0x050A
+#define OS_REDOX        0x050B
 
 #define COMP_UNKNOWN        0
 #define COMP_GCC            0x0001
@@ -231,6 +232,10 @@
     #define OS                  OS_RISCOS
     #define IS_RISCOS           1
 
+#elif defined(__redox__)
+    #define OS                  OS_REDOX
+    #define IS_REDOX            1
+
 #endif
 	
 	
@@ -311,18 +316,17 @@
 #define SUPPORTS_MEMBER_TEMPLATES               ( ! IS_SUNPRO )
 #define SUPPORTS_EXPLICIT_TEMPLATE_FUNC_INST    ( ! IS_SUNPRO )
 
-#define SUPPORTS_ST_BLOCKS          (!IS_DOS_DJGPP)
 #define SUPPORTS_POSIX_SIGNALS      (!IS_DOS_DJGPP)
-#define SUPPORTS_NETWORKING         (!IS_SORTIX && !IS_DOS_DJGPP)
+#define SUPPORTS_NETWORKING         (!IS_SORTIX && !IS_DOS_DJGPP && !IS_REDOX)
 #define SUPPORTS_SYSLOG             (HAVE_SYSLOG_H && !IS_SKYOS && !IS_RISCOS)
 #define NEEDS_SWAB_IMPL             (IS_CYGWIN || IS_SYLLABLE || IS_ANDROID || IS_SORTIX)
 #define USES_MBLEN                  (!IS_ANDROID && !IS_AROS)
-#define USES_DEVICE_PATH            (IS_AROS || IS_DOS_DJGPP || IS_RISCOS)
+#define USES_DEVICE_PATH            (IS_AROS || IS_DOS_DJGPP || IS_RISCOS || IS_REDOX)
 #define ICONV_CONST_SOURCE          (IS_MINIX)
 #define SUPPORTS_DIRECT_IO          (IS_LINUX) 
 // Linux is the only platform where direct i/o hashing has been tested & works properly so far.
 
-#define SUPPORTS_TERMIOS            (!IS_RTEMS)
+#define SUPPORTS_TERMIOS            (!IS_RTEMS && !IS_REDOX)
 // RTEMS errors are probably just a buildsys issue & this will change or go away.
 
 #define SUPPORTS_DOUBLE_SLASH_PATH  (IS_CYGWIN)
diff --git a/src/core/unixfsservices.cpp b/src/core/unixfsservices.cpp
index 7ad946b..2229b62 100644
--- a/src/core/unixfsservices.cpp
+++ b/src/core/unixfsservices.cpp
@@ -326,6 +326,7 @@ void cUnixFSServices::Stat( const TSTRING& strNameC, cFSStatArgs& stat) const
     if( ret < 0 )
         throw eFSServicesGeneric( strName, iFSServices::GetInstance()->GetErrString() );
 
+#if HAVE_STRUCT_STAT_ST_RDEV
     // new stuff 7/17/99 - BAM
     // if the file is not a device set rdev to zero by hand (most OSs will
     // do this for us, but some don't)
@@ -335,6 +336,7 @@ void cUnixFSServices::Stat( const TSTRING& strNameC, cFSStatArgs& stat) const
         // actual type of the object -- could be a struct (requiring '= {0}' )
         util_ZeroMemory( statbuf.st_rdev );                                             
     }
+#endif
 
     //copy information returned by lstat call into the structure passed in
     stat.gid        = statbuf.st_gid;
@@ -342,14 +344,21 @@ void cUnixFSServices::Stat( const TSTRING& strNameC, cFSStatArgs& stat) const
     stat.ctime      = statbuf.st_ctime;
     stat.mtime      = statbuf.st_mtime;
     stat.dev        = statbuf.st_dev;
+
+#if HAVE_STRUCT_STAT_ST_RDEV
     stat.rdev       = statbuf.st_rdev;
+#else
+    stat.rdev       = 0;
+#endif
+
     stat.ino        = statbuf.st_ino;
     stat.mode       = statbuf.st_mode;
     stat.nlink      = statbuf.st_nlink;
     stat.size       = statbuf.st_size;
     stat.uid        = statbuf.st_uid;
     stat.blksize    = statbuf.st_blksize;
-#if SUPPORTS_ST_BLOCKS
+    
+#if HAVE_STRUCT_STAT_ST_BLOCKS
     stat.blocks     = statbuf.st_blocks;
 #else
     stat.blocks     = 0;
diff --git a/src/twtest/file_t.cpp b/src/twtest/file_t.cpp
index 1961926..8ebc8f7 100644
--- a/src/twtest/file_t.cpp
+++ b/src/twtest/file_t.cpp
@@ -58,7 +58,7 @@ void TestFile()
     TEST(testStream);
 }
 
-//////////////////
+////////////////////////////////////////////////////////////////////////
 
 void testDosAsPosix(const std::string& in, const std::string& expected)
 {
@@ -132,6 +132,8 @@ void TestDosBackupName()
     testDosBackupName("C:\\FOO.BAR\\1234.123", "C:\\FOO.BAR\\1234_123");    
 }
 
+
+////////////////////////////////////////////////////////////////////////
 void testArosAsPosix(const std::string& in, const std::string& expected)
 {
     TEST( expected == cArosPath::AsPosix(in) );
@@ -184,6 +186,59 @@ void TestArosIsAbsolute()
 }
 
 
+////////////////////////////////////////////////////////////////////////
+void testRedoxAsPosix(const std::string& in, const std::string& expected)
+{
+    TEST( expected == cRedoxPath::AsPosix(in) );
+}
+
+void TestRedoxAsPosix()
+{
+    testRedoxAsPosix("file:/", "/file/");
+    testRedoxAsPosix("file:/Foo", "/file/Foo");
+    testRedoxAsPosix("file:/Foo/Bar", "/file/Foo/Bar");
+
+    testRedoxAsPosix("/file/Foo/Bar", "/file/Foo/Bar");
+
+    testRedoxAsPosix("Foo", "Foo");
+    testRedoxAsPosix("Foo/Bar", "Foo/Bar");
+}
+
+void testRedoxAsNative(const std::string& in, const std::string& expected)
+{
+    TEST( expected == cRedoxPath::AsNative(in) );
+}
+
+void TestRedoxAsNative()
+{
+    testRedoxAsNative("/file", "file:/");
+    testRedoxAsNative("/file/Foo", "file:/Foo" );
+    testRedoxAsNative("/file/Foo/Bar", "file:/Foo/Bar" );
+
+    testRedoxAsNative("file:/Foo/Bar", "file:/Foo/Bar");
+
+    testRedoxAsNative("Foo", "Foo");
+    testRedoxAsNative("Foo/Bar", "Foo/Bar");
+}
+
+void testRedoxIsAbsolute(const std::string& in, bool expected)
+{
+    TEST( expected == cRedoxPath::IsAbsolutePath(in) );
+}
+
+void TestRedoxIsAbsolute()
+{
+    testRedoxIsAbsolute("file:", true);
+    testRedoxIsAbsolute("file:/Foo", true);
+    testRedoxIsAbsolute("file:/Foo/bar", true);
+
+    testRedoxIsAbsolute("/file/Foo/bar", true);
+
+    testRedoxIsAbsolute("Foo/bar", false);
+    testRedoxIsAbsolute("Foo", false);
+}
+
+
 void RegisterSuite_File()
 {
     RegisterTest("File", "Basic", TestFile);
@@ -195,4 +250,8 @@ void RegisterSuite_File()
     RegisterTest("File", "ArosAsPosix", TestArosAsPosix);
     RegisterTest("File", "ArosAsNative", TestArosAsNative);
     RegisterTest("File", "ArosIsAbsolute", TestArosIsAbsolute);
+
+    RegisterTest("File", "RedoxAsPosix", TestRedoxAsPosix);
+    RegisterTest("File", "RedoxAsNative", TestRedoxAsNative);
+    RegisterTest("File", "RedoxIsAbsolute", TestRedoxIsAbsolute);
 }
diff --git a/src/twtest/platform_t.cpp b/src/twtest/platform_t.cpp
index a0c46c4..7e937bf 100644
--- a/src/twtest/platform_t.cpp
+++ b/src/twtest/platform_t.cpp
@@ -39,7 +39,9 @@
 #include "twtest/test.h"
 #include "core/error.h"
 
+#if HAVE_SYS_UTSNAME_H
 #include <sys/utsname.h>
+#endif
 
 using namespace std;
 
@@ -291,17 +293,21 @@ const TSTRING expected_os("AROS");
 const TSTRING expected_os("RTEMS");
 #elif IS_RISCOS
 const TSTRING expected_os("RISC OS");
+#elif IS_RISCOS
+const TSTRING expected_os("Redox");
 #else
 const TSTRING expected_os("?!?!?");
 #endif
 
 void TestPlatformDetection()
 {
+#if HAVE_SYS_UTSNAME_H
     struct utsname os_info;
     TEST( uname(&os_info) == 0);
 
     TSTRING observed_os(os_info.sysname);
     TEST( observed_os == expected_os );
+#endif
 }
 
 void RegisterSuite_Platform()