diff --git a/Makefile.in b/Makefile.in
index 9203359..5bda1fb 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,9 +1,9 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# Makefile.in generated by automake 1.11.2 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -83,6 +83,12 @@ am__nobase_list = $(am__nobase_strip_setup); \
 am__base_list = \
   sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
   sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
 am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
 	"$(DESTDIR)$(man1dir)" "$(DESTDIR)$(includedir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
@@ -396,7 +402,7 @@ all: jconfig.h
 
 .SUFFIXES:
 .SUFFIXES: .c .lo .o .obj
-am--refresh:
+am--refresh: Makefile
 	@:
 $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
@@ -432,10 +438,8 @@ $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 $(am__aclocal_m4_deps):
 
 jconfig.h: stamp-h1
-	@if test ! -f $@; then \
-	  rm -f stamp-h1; \
-	  $(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
-	else :; fi
+	@if test ! -f $@; then rm -f stamp-h1; else :; fi
+	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi
 
 stamp-h1: $(srcdir)/jconfig.cfg $(top_builddir)/config.status
 	@rm -f stamp-h1
@@ -623,26 +627,23 @@ mostlyclean-kr:
 .c.o:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c $<
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c $<
 
 .c.obj:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c `$(CYGPATH_W) '$<'`
 
 .c.lo:
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
-@am__fastdepCC_FALSE@	$(AM_V_CC) @AM_BACKSLASH@
-@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
-@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
 @MEMORYMGR@_.c: @MEMORYMGR@.c $(ANSI2KNR)
 	$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) `if test -f $(srcdir)/@MEMORYMGR@.c; then echo $(srcdir)/@MEMORYMGR@.c; else echo @MEMORYMGR@.c; fi` | sed 's/^# \([0-9]\)/#line \1/' | $(ANSI2KNR) > $@ || rm -f $@
 cdjpeg_.c: cdjpeg.c $(ANSI2KNR)
@@ -850,9 +851,7 @@ uninstall-man1:
 	  sed -n '/\.1[a-z]*$$/p'; \
 	} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^1][0-9a-z]*$$,1,;x' \
 	      -e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
-	test -z "$$files" || { \
-	  echo " ( cd '$(DESTDIR)$(man1dir)' && rm -f" $$files ")"; \
-	  cd "$(DESTDIR)$(man1dir)" && rm -f $$files; }
+	dir='$(DESTDIR)$(man1dir)'; $(am__uninstall_files_from_dir)
 install-includeHEADERS: $(include_HEADERS)
 	@$(NORMAL_INSTALL)
 	test -z "$(includedir)" || $(MKDIR_P) "$(DESTDIR)$(includedir)"
@@ -870,9 +869,7 @@ uninstall-includeHEADERS:
 	@$(NORMAL_UNINSTALL)
 	@list='$(include_HEADERS)'; test -n "$(includedir)" || list=; \
 	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
-	test -n "$$files" || exit 0; \
-	echo " ( cd '$(DESTDIR)$(includedir)' && rm -f" $$files ")"; \
-	cd "$(DESTDIR)$(includedir)" && rm -f $$files
+	dir='$(DESTDIR)$(includedir)'; $(am__uninstall_files_from_dir)
 
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -946,10 +943,15 @@ install-am: all-am
 
 installcheck: installcheck-am
 install-strip:
-	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	  `test -z '$(STRIP)' || \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
 mostlyclean-generic:
 
 clean-generic:
diff --git a/README b/README
index 451265d..0a23c19 100644
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 The Independent JPEG Group's JPEG software
 ==========================================
 
-README for release 8c of 16-Jan-2011
+README for release 8d of 15-Jan-2012
 ====================================
 
 This distribution contains the eighth public release of the Independent JPEG
@@ -13,7 +13,8 @@ Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson,
 Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers,
 and other members of the Independent JPEG Group.
 
-IJG is not affiliated with the official ISO JPEG standards committee.
+IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee
+(also known as JPEG, together with ITU-T SG16).
 
 
 DOCUMENTATION ROADMAP
@@ -114,7 +115,7 @@ with respect to this software, its quality, accuracy, merchantability, or
 fitness for a particular purpose.  This software is provided "AS IS", and you,
 its user, assume the entire risk as to its quality and accuracy.
 
-This software is copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding.
+This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
 All Rights Reserved except as specified below.
 
 Permission is hereby granted to use, copy, modify, and distribute this
@@ -222,9 +223,11 @@ Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
 Continuous-tone Still Images, Part 2: Compliance testing" and has document
 numbers ISO/IEC IS 10918-2, ITU-T T.83.
 IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension
-which is specified in a contributed document at ITU and ISO with title "ITU-T
-JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced Image Coding", April
-2006, Geneva, Switzerland.  The latest version of the document is Revision 3.
+which is specified in two documents:  A contributed document at ITU and ISO
+with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced
+Image Coding", April 2006, Geneva, Switzerland.  The latest version of this
+document is Revision 3.  And a contributed document ISO/IEC JTC1/SC29/WG1 N
+5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany.
 
 The JPEG standard does not specify all details of an interchangeable file
 format.  For the omitted details we follow the "JFIF" conventions, revision
@@ -254,8 +257,8 @@ ARCHIVE LOCATIONS
 The "official" archive site for this software is www.ijg.org.
 The most recent released version can always be found there in
 directory "files".  This particular version will be archived as
-http://www.ijg.org/files/jpegsrc.v8c.tar.gz, and in Windows-compatible
-"zip" archive format as http://www.ijg.org/files/jpegsr8c.zip.
+http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible
+"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip.
 
 The JPEG FAQ (Frequently Asked Questions) article is a source of some
 general information about JPEG.
@@ -281,6 +284,10 @@ ITU JPEG (Study Group 16) meeting in Geneva, Switzerland.
 Thank to Thomas Wiegand and Gary Sullivan for inviting me to the
 Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland.
 
+Thank to Thomas Richter and Daniel Lee for inviting me to the
+ISO/IEC JTC1/SC29/WG1 (also known as JPEG, together with ITU-T SG16)
+meeting in Berlin, Germany.
+
 Thank to John Korejwa and Massimo Ballerini for inviting me to
 fruitful consultations in Boston, MA and Milan, Italy.
 
@@ -304,17 +311,35 @@ design and development of this singular software package.
 FILE FORMAT WARS
 ================
 
-The ISO JPEG standards committee actually promotes different formats like
-"JPEG 2000" or "JPEG XR" which are incompatible with original DCT-based
-JPEG and which are based on faulty technologies.  IJG therefore does not
-and will not support such momentary mistakes (see REFERENCES).
-We have little or no sympathy for the promotion of these formats.  Indeed,
-one of the original reasons for developing this free software was to help
-force convergence on common, interoperable format standards for JPEG files.
+The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together
+with ITU-T SG16) currently promotes different formats containing the name
+"JPEG" which is misleading because these formats are incompatible with
+original DCT-based JPEG and are based on faulty technologies.
+IJG therefore does not and will not support such momentary mistakes
+(see REFERENCES).
+There exist also distributions under the name "OpenJPEG" promoting such
+kind of formats which is misleading because they don't support original
+JPEG images.
+We have no sympathy for the promotion of inferior formats.  Indeed, one of
+the original reasons for developing this free software was to help force
+convergence on common, interoperable format standards for JPEG files.
 Don't use an incompatible file format!
 (In any case, our decoder will remain capable of reading existing JPEG
 image files indefinitely.)
 
+Furthermore, the ISO committee pretends to be "responsible for the popular
+JPEG" in their public reports which is not true because they don't respond to
+actual requirements for the maintenance of the original JPEG specification.
+
+There are currently distributions in circulation containing the name
+"libjpeg" which claim to be a "derivative" or "fork" of the original
+libjpeg, but don't have the features and are incompatible with formats
+supported by actual IJG libjpeg distributions.  Furthermore, they
+violate the license conditions as described under LEGAL ISSUES above.
+We have no sympathy for the release of misleading and illegal
+distributions derived from obsolete code bases.
+Don't use an obsolete code base!
+
 
 TO DO
 =====
@@ -323,4 +348,4 @@ Version 8 is the first release of a new generation JPEG standard
 to overcome the limitations of the original JPEG specification.
 More features are being prepared for coming releases...
 
-Please send bug reports, offers of help, etc. to jpeg-info@uc.ag.
+Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org.
diff --git a/aclocal.m4 b/aclocal.m4
index de31b7f..9b38b97 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,7 +1,8 @@
-# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
+# generated automatically by aclocal 1.11.2 -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
+# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
+# Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -22,8 +23,8 @@ To do so, use the procedure documented by the package, typically `autoreconf'.])
 # libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
 #
 #   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
-#                 Inc.
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
 #   Written by Gordon Matzigkeit, 1996
 #
 # This file is free software; the Free Software Foundation gives
@@ -32,8 +33,8 @@ To do so, use the procedure documented by the package, typically `autoreconf'.])
 
 m4_define([_LT_COPYING], [dnl
 #   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
-#                 Inc.
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
 #   Written by Gordon Matzigkeit, 1996
 #
 #   This file is part of GNU Libtool.
@@ -167,6 +168,8 @@ AC_REQUIRE([AC_CANONICAL_BUILD])dnl
 AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
 AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
 
+_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
+dnl
 _LT_DECL([], [host_alias], [0], [The host system])dnl
 _LT_DECL([], [host], [0])dnl
 _LT_DECL([], [host_os], [0])dnl
@@ -652,7 +655,7 @@ m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
 m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
 configured by $[0], generated by m4_PACKAGE_STRING.
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2011 Free Software Foundation, Inc.
 This config.lt script is free software; the Free Software Foundation
 gives unlimited permision to copy, distribute and modify it."
 
@@ -816,6 +819,7 @@ AC_DEFUN([LT_LANG],
 m4_case([$1],
   [C],			[_LT_LANG(C)],
   [C++],		[_LT_LANG(CXX)],
+  [Go],			[_LT_LANG(GO)],
   [Java],		[_LT_LANG(GCJ)],
   [Fortran 77],		[_LT_LANG(F77)],
   [Fortran],		[_LT_LANG(FC)],
@@ -837,6 +841,29 @@ m4_defun([_LT_LANG],
 ])# _LT_LANG
 
 
+m4_ifndef([AC_PROG_GO], [
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_GO.  When it is available in    #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+m4_defun([AC_PROG_GO],
+[AC_LANG_PUSH(Go)dnl
+AC_ARG_VAR([GOC],     [Go compiler command])dnl
+AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+AC_CHECK_TOOL(GOC, gccgo)
+if test -z "$GOC"; then
+  if test -n "$ac_tool_prefix"; then
+    AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
+  fi
+fi
+if test -z "$GOC"; then
+  AC_CHECK_PROG(GOC, gccgo, gccgo, false)
+fi
+])#m4_defun
+])#m4_ifndef
+
+
 # _LT_LANG_DEFAULT_CONFIG
 # -----------------------
 m4_defun([_LT_LANG_DEFAULT_CONFIG],
@@ -867,6 +894,10 @@ AC_PROVIDE_IFELSE([AC_PROG_GCJ],
        m4_ifdef([LT_PROG_GCJ],
 	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
 
+AC_PROVIDE_IFELSE([AC_PROG_GO],
+  [LT_LANG(GO)],
+  [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
+
 AC_PROVIDE_IFELSE([LT_PROG_RC],
   [LT_LANG(RC)],
   [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
@@ -969,7 +1000,13 @@ m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
 	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
 	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
         _lt_result=$?
-	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test $_lt_result -eq 0; then
 	  lt_cv_apple_cc_single_mod=yes
 	else
 	  cat conftest.err >&AS_MESSAGE_LOG_FD
@@ -977,6 +1014,7 @@ m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
 	rm -rf libconftest.dylib*
 	rm -f conftest.*
       fi])
+
     AC_CACHE_CHECK([for -exported_symbols_list linker flag],
       [lt_cv_ld_exported_symbols_list],
       [lt_cv_ld_exported_symbols_list=no
@@ -988,6 +1026,7 @@ m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
 	[lt_cv_ld_exported_symbols_list=no])
 	LDFLAGS="$save_LDFLAGS"
     ])
+
     AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
       [lt_cv_ld_force_load=no
       cat > conftest.c << _LT_EOF
@@ -1005,7 +1044,9 @@ _LT_EOF
       echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
       $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
       _lt_result=$?
-      if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
 	lt_cv_ld_force_load=yes
       else
 	cat conftest.err >&AS_MESSAGE_LOG_FD
@@ -1050,8 +1091,8 @@ _LT_EOF
 ])
 
 
-# _LT_DARWIN_LINKER_FEATURES
-# --------------------------
+# _LT_DARWIN_LINKER_FEATURES([TAG])
+# ---------------------------------
 # Checks for linker and compiler features on darwin
 m4_defun([_LT_DARWIN_LINKER_FEATURES],
 [
@@ -1062,6 +1103,8 @@ m4_defun([_LT_DARWIN_LINKER_FEATURES],
   _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
   if test "$lt_cv_ld_force_load" = "yes"; then
     _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+    m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
+                  [FC],  [_LT_TAGVAR(compiler_needs_object, $1)=yes])
   else
     _LT_TAGVAR(whole_archive_flag_spec, $1)=''
   fi
@@ -1345,14 +1388,27 @@ s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
     CFLAGS="$SAVE_CFLAGS"
   fi
   ;;
-sparc*-*solaris*)
+*-*solaris*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
   if AC_TRY_EVAL(ac_compile); then
     case `/usr/bin/file conftest.o` in
     *64-bit*)
       case $lt_cv_prog_gnu_ld in
-      yes*) LD="${LD-ld} -m elf64_sparc" ;;
+      yes*)
+        case $host in
+        i?86-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD="${LD-ld}_sol2"
+        fi
+        ;;
       *)
 	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
 	  LD="${LD-ld} -64"
@@ -1429,13 +1485,13 @@ old_postuninstall_cmds=
 if test -n "$RANLIB"; then
   case $host_os in
   openbsd*)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
     ;;
   *)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
     ;;
   esac
-  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
 fi
 
 case $host_os in
@@ -1615,6 +1671,11 @@ AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
     lt_cv_sys_max_cmd_len=196608
     ;;
 
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
   osf*)
     # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
     # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
@@ -1654,7 +1715,7 @@ AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
       # If test is not a shell built-in, we'll probably end up computing a
       # maximum length that is only half of the actual maximum length, but
       # we can't tell.
-      while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \
+      while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
 	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
 	      test $i != 17 # 1/2 MB should be enough
       do
@@ -2200,7 +2261,7 @@ need_version=unknown
 
 case $host_os in
 aix3*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
   shlibpath_var=LIBPATH
 
@@ -2209,7 +2270,7 @@ aix3*)
   ;;
 
 aix[[4-9]]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   hardcode_into_libs=yes
@@ -2274,7 +2335,7 @@ beos*)
   ;;
 
 bsdi[[45]]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
@@ -2413,7 +2474,7 @@ m4_if([$1], [],[
   ;;
 
 dgux*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
@@ -2421,10 +2482,6 @@ dgux*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
-freebsd1*)
-  dynamic_linker=no
-  ;;
-
 freebsd* | dragonfly*)
   # DragonFly does not have aout.  When/if they implement a new
   # versioning mechanism, adjust this.
@@ -2432,7 +2489,7 @@ freebsd* | dragonfly*)
     objformat=`/usr/bin/objformat`
   else
     case $host_os in
-    freebsd[[123]]*) objformat=aout ;;
+    freebsd[[23]].*) objformat=aout ;;
     *) objformat=elf ;;
     esac
   fi
@@ -2450,7 +2507,7 @@ freebsd* | dragonfly*)
   esac
   shlibpath_var=LD_LIBRARY_PATH
   case $host_os in
-  freebsd2*)
+  freebsd2.*)
     shlibpath_overrides_runpath=yes
     ;;
   freebsd3.[[01]]* | freebsdelf3.[[01]]*)
@@ -2470,17 +2527,18 @@ freebsd* | dragonfly*)
   ;;
 
 gnu*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
   hardcode_into_libs=yes
   ;;
 
 haiku*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   dynamic_linker="$host_os runtime_loader"
@@ -2541,7 +2599,7 @@ hpux9* | hpux10* | hpux11*)
   ;;
 
 interix[[3-9]]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
@@ -2557,7 +2615,7 @@ irix5* | irix6* | nonstopux*)
     nonstopux*) version_type=nonstopux ;;
     *)
 	if test "$lt_cv_prog_gnu_ld" = yes; then
-		version_type=linux
+		version_type=linux # correct to gnu/linux during the next big refactor
 	else
 		version_type=irix
 	fi ;;
@@ -2594,9 +2652,9 @@ linux*oldld* | linux*aout* | linux*coff*)
   dynamic_linker=no
   ;;
 
-# This must be Linux ELF.
+# This must be glibc/ELF.
 linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -2659,7 +2717,7 @@ netbsd*)
   ;;
 
 newsos6)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   shlibpath_var=LD_LIBRARY_PATH
   shlibpath_overrides_runpath=yes
@@ -2728,7 +2786,7 @@ rdos*)
   ;;
 
 solaris*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -2753,7 +2811,7 @@ sunos4*)
   ;;
 
 sysv4 | sysv4.3*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
@@ -2777,7 +2835,7 @@ sysv4 | sysv4.3*)
 
 sysv4*MP*)
   if test -d /usr/nec ;then
-    version_type=linux
+    version_type=linux # correct to gnu/linux during the next big refactor
     library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
     soname_spec='$libname${shared_ext}.$major'
     shlibpath_var=LD_LIBRARY_PATH
@@ -2808,7 +2866,7 @@ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
 
 tpf*)
   # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -2818,7 +2876,7 @@ tpf*)
   ;;
 
 uts4*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
@@ -3240,7 +3298,7 @@ irix5* | irix6* | nonstopux*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-# This must be Linux ELF.
+# This must be glibc/ELF.
 linux* | k*bsd*-gnu | kopensolaris*-gnu)
   lt_cv_deplibs_check_method=pass_all
   ;;
@@ -3660,6 +3718,7 @@ for ac_symprfx in "" "_"; do
     # which start with @ or ?.
     lt_cv_sys_global_symbol_pipe="$AWK ['"\
 "     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
 "     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
 "     \$ 0!~/External *\|/{next};"\
 "     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
@@ -4244,7 +4303,9 @@ m4_if([$1], [CXX], [
     case $cc_basename in
     nvcc*) # Cuda Compiler Driver 2.2
       _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
-      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Xcompiler -fPIC'
+      if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
+      fi
       ;;
     esac
   else
@@ -4336,18 +4397,33 @@ m4_if([$1], [CXX], [
 	;;
       *)
 	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ F* | *Sun*Fortran*)
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
 	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
 	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
 	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
 	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
 	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	  ;;
 	*Sun\ C*)
 	  # Sun C 5.9
 	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
 	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
 	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
 	  ;;
+        *Intel*\ [[CF]]*Compiler*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	  ;;
+	*Portland\ Group*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  ;;
 	esac
 	;;
       esac
@@ -4507,7 +4583,9 @@ m4_if([$1], [CXX], [
     ;;
   cygwin* | mingw* | cegcc*)
     case $cc_basename in
-    cl*) ;;
+    cl*)
+      _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
     *)
       _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
       _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
@@ -4532,7 +4610,6 @@ m4_if([$1], [CXX], [
   _LT_TAGVAR(hardcode_direct, $1)=no
   _LT_TAGVAR(hardcode_direct_absolute, $1)=no
   _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
   _LT_TAGVAR(hardcode_libdir_separator, $1)=
   _LT_TAGVAR(hardcode_minus_L, $1)=no
   _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
@@ -4783,8 +4860,7 @@ _LT_EOF
 	xlf* | bgf* | bgxlf* | mpixlf*)
 	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
 	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
-	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-	  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
 	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
 	  if test "x$supports_anon_versioning" = xyes; then
 	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
@@ -5079,6 +5155,7 @@ _LT_EOF
 	# The linker will not automatically build a static lib if we build a DLL.
 	# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
 	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
 	_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
 	# Don't use ranlib
 	_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
@@ -5125,10 +5202,6 @@ _LT_EOF
       _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
       ;;
 
-    freebsd1*)
-      _LT_TAGVAR(ld_shlibs, $1)=no
-      ;;
-
     # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
     # support.  Future versions do this automatically, but an explicit c++rt0.o
     # does not break anything, and helps significantly (at the cost of a little
@@ -5141,7 +5214,7 @@ _LT_EOF
       ;;
 
     # Unfortunately, older versions of FreeBSD 2 do not have this feature.
-    freebsd2*)
+    freebsd2.*)
       _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
       _LT_TAGVAR(hardcode_direct, $1)=yes
       _LT_TAGVAR(hardcode_minus_L, $1)=yes
@@ -5180,7 +5253,6 @@ _LT_EOF
       fi
       if test "$with_gnu_ld" = no; then
 	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
-	_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
 	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
 	_LT_TAGVAR(hardcode_direct, $1)=yes
 	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
@@ -5622,9 +5694,6 @@ _LT_TAGDECL([], [no_undefined_flag], [1],
 _LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
     [Flag to hardcode $libdir into a binary during linking.
     This must work even if $libdir does not exist])
-_LT_TAGDECL([], [hardcode_libdir_flag_spec_ld], [1],
-    [[If ld is used when linking, flag to hardcode $libdir into a binary
-    during linking.  This must work even if $libdir does not exist]])
 _LT_TAGDECL([], [hardcode_libdir_separator], [1],
     [Whether we need a single "-rpath" flag with a separated argument])
 _LT_TAGDECL([], [hardcode_direct], [0],
@@ -5778,7 +5847,6 @@ _LT_TAGVAR(export_dynamic_flag_spec, $1)=
 _LT_TAGVAR(hardcode_direct, $1)=no
 _LT_TAGVAR(hardcode_direct_absolute, $1)=no
 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
 _LT_TAGVAR(hardcode_libdir_separator, $1)=
 _LT_TAGVAR(hardcode_minus_L, $1)=no
 _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
@@ -6148,7 +6216,7 @@ if test "$_lt_caught_CXX_error" != yes; then
         esac
         ;;
 
-      freebsd[[12]]*)
+      freebsd2.*)
         # C++ shared libraries reported to be fairly broken before
 	# switch to ELF
         _LT_TAGVAR(ld_shlibs, $1)=no
@@ -6909,12 +6977,18 @@ public class foo {
   }
 };
 _LT_EOF
+], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
+package foo
+func foo() {
+}
+_LT_EOF
 ])
 
 _lt_libdeps_save_CFLAGS=$CFLAGS
 case "$CC $CFLAGS " in #(
 *\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
 *\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
 esac
 
 dnl Parse the compiler output and extract the necessary
@@ -7111,7 +7185,6 @@ _LT_TAGVAR(export_dynamic_flag_spec, $1)=
 _LT_TAGVAR(hardcode_direct, $1)=no
 _LT_TAGVAR(hardcode_direct_absolute, $1)=no
 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
 _LT_TAGVAR(hardcode_libdir_separator, $1)=
 _LT_TAGVAR(hardcode_minus_L, $1)=no
 _LT_TAGVAR(hardcode_automatic, $1)=no
@@ -7244,7 +7317,6 @@ _LT_TAGVAR(export_dynamic_flag_spec, $1)=
 _LT_TAGVAR(hardcode_direct, $1)=no
 _LT_TAGVAR(hardcode_direct_absolute, $1)=no
 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
-_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
 _LT_TAGVAR(hardcode_libdir_separator, $1)=
 _LT_TAGVAR(hardcode_minus_L, $1)=no
 _LT_TAGVAR(hardcode_automatic, $1)=no
@@ -7427,6 +7499,73 @@ CFLAGS=$lt_save_CFLAGS
 ])# _LT_LANG_GCJ_CONFIG
 
 
+# _LT_LANG_GO_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Go compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_GO_CONFIG],
+[AC_REQUIRE([LT_PROG_GO])dnl
+AC_LANG_SAVE
+
+# Source file extension for Go test sources.
+ac_ext=go
+
+# Object file extension for compiled Go test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="package main; func main() { }"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='package main; func main() { }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GOC-"gccgo"}
+CFLAGS=$GOFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)="$LD"
+_LT_CC_BASENAME([$compiler])
+
+# Go did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GO_CONFIG
+
+
 # _LT_LANG_RC_CONFIG([TAG])
 # -------------------------
 # Ensure that the configuration variables for the Windows resource compiler
@@ -7496,6 +7635,13 @@ dnl aclocal-1.4 backwards compatibility:
 dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
 
 
+# LT_PROG_GO
+# ----------
+AC_DEFUN([LT_PROG_GO],
+[AC_CHECK_TOOL(GOC, gccgo,)
+])
+
+
 # LT_PROG_RC
 # ----------
 AC_DEFUN([LT_PROG_RC],
@@ -8160,9 +8306,24 @@ dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
 # MODE is either `yes' or `no'.  If omitted, it defaults to `both'.
 m4_define([_LT_WITH_PIC],
 [AC_ARG_WITH([pic],
-    [AS_HELP_STRING([--with-pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
 	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
-    [pic_mode="$withval"],
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for lt_pkg in $withval; do
+	IFS="$lt_save_ifs"
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
     [pic_mode=default])
 
 test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
@@ -8334,15 +8495,15 @@ m4_define([lt_dict_filter],
 
 # @configure_input@
 
-# serial 3293 ltversion.m4
+# serial 3337 ltversion.m4
 # This file is part of GNU Libtool
 
-m4_define([LT_PACKAGE_VERSION], [2.4])
-m4_define([LT_PACKAGE_REVISION], [1.3293])
+m4_define([LT_PACKAGE_VERSION], [2.4.2])
+m4_define([LT_PACKAGE_REVISION], [1.3337])
 
 AC_DEFUN([LTVERSION_VERSION],
-[macro_version='2.4'
-macro_revision='1.3293'
+[macro_version='2.4.2'
+macro_revision='1.3337'
 _LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
 _LT_DECL(, macro_revision, 0)
 ])
@@ -8446,12 +8607,15 @@ m4_ifndef([_LT_PROG_F77],		[AC_DEFUN([_LT_PROG_F77])])
 m4_ifndef([_LT_PROG_FC],		[AC_DEFUN([_LT_PROG_FC])])
 m4_ifndef([_LT_PROG_CXX],		[AC_DEFUN([_LT_PROG_CXX])])
 
-# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2011 Free Software
+# Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# serial 1
+
 # AM_AUTOMAKE_VERSION(VERSION)
 # ----------------------------
 # Automake X.Y traces this macro to ensure aclocal.m4 has been
@@ -8461,7 +8625,7 @@ AC_DEFUN([AM_AUTOMAKE_VERSION],
 [am__api_version='1.11'
 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
 dnl require some minimum version.  Point them to the right macro.
-m4_if([$1], [1.11.1], [],
+m4_if([$1], [1.11.2], [],
       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
 ])
 
@@ -8477,19 +8641,21 @@ m4_define([_AM_AUTOCONF_VERSION], [])
 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
-[AM_AUTOMAKE_VERSION([1.11.1])dnl
+[AM_AUTOMAKE_VERSION([1.11.2])dnl
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
 
 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 
-# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# serial 1
+
 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
 # $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
 # `$srcdir', `$srcdir/..', or `$srcdir/../..'.
@@ -8571,14 +8737,14 @@ AC_CONFIG_COMMANDS_PRE(
 Usually this means the macro was only invoked conditionally.]])
 fi])])
 
-# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
-# Free Software Foundation, Inc.
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009,
+# 2010, 2011 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 10
+# serial 12
 
 # There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
 # written in clear, in which case automake, when reading aclocal.m4,
@@ -8618,6 +8784,7 @@ AC_CACHE_CHECK([dependency style of $depcc],
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -8682,7 +8849,7 @@ AC_CACHE_CHECK([dependency style of $depcc],
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -8747,10 +8914,13 @@ AC_DEFUN([AM_DEP_TRACK],
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
+  am__nodep='_no'
 fi
 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 AC_SUBST([AMDEPBACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
+AC_SUBST([am__nodep])dnl
+_AM_SUBST_NOTMAKE([am__nodep])dnl
 ])
 
 # Generate code to set up dependency tracking.              -*- Autoconf -*-
@@ -8972,12 +9142,15 @@ for _am_header in $config_headers :; do
 done
 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 
-# Copyright (C) 2001, 2003, 2005, 2008  Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2005, 2008, 2011 Free Software Foundation,
+# Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# serial 1
+
 # AM_PROG_INSTALL_SH
 # ------------------
 # Define $install_sh.
@@ -9017,8 +9190,8 @@ AC_SUBST([am__leading_dot])])
 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 # From Jim Meyering
 
-# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008
-# Free Software Foundation, Inc.
+# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008,
+# 2011 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -9038,7 +9211,7 @@ AC_DEFUN([AM_MAINTAINER_MODE],
        [disable], [m4_define([am_maintainer_other], [enable])],
        [m4_define([am_maintainer_other], [enable])
         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
-AC_MSG_CHECKING([whether to am_maintainer_other maintainer-specific portions of Makefiles])
+AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
   AC_ARG_ENABLE([maintainer-mode],
 [  --][am_maintainer_other][-maintainer-mode  am_maintainer_other make rules and dependencies not useful
@@ -9149,12 +9322,15 @@ else
 fi
 ])
 
-# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+# Copyright (C) 2003, 2004, 2005, 2006, 2011 Free Software Foundation,
+# Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# serial 1
+
 # AM_PROG_MKDIR_P
 # ---------------
 # Check for `mkdir -p'.
@@ -9177,13 +9353,14 @@ esac
 
 # Helper functions for option handling.                     -*- Autoconf -*-
 
-# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2005, 2008, 2010 Free Software
+# Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 4
+# serial 5
 
 # _AM_MANGLE_OPTION(NAME)
 # -----------------------
@@ -9191,13 +9368,13 @@ AC_DEFUN([_AM_MANGLE_OPTION],
 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 
 # _AM_SET_OPTION(NAME)
-# ------------------------------
+# --------------------
 # Set option NAME.  Presently that only means defining a flag for this option.
 AC_DEFUN([_AM_SET_OPTION],
 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
 
 # _AM_SET_OPTIONS(OPTIONS)
-# ----------------------------------
+# ------------------------
 # OPTIONS is a space-separated list of Automake options.
 AC_DEFUN([_AM_SET_OPTIONS],
 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
@@ -9219,6 +9396,8 @@ AC_DEFUN([_AM_IF_OPTION],
 
 AC_DEFUN([AM_C_PROTOTYPES],
 [AC_REQUIRE([AC_C_PROTOTYPES])
+AC_DIAGNOSE([obsolete],
+            [$0: automatic de-ANSI-fication support is deprecated])
 if test "$ac_cv_prog_cc_stdc" != no; then
   U= ANSI2KNR=
 else
@@ -9326,12 +9505,14 @@ AC_SUBST([AM_BACKSLASH])dnl
 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 ])
 
-# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003, 2005, 2011 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
+# serial 1
+
 # AM_PROG_INSTALL_STRIP
 # ---------------------
 # One issue with vendor `install' (even GNU) is that you can't
@@ -9354,13 +9535,13 @@ fi
 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 
-# Copyright (C) 2006, 2008  Free Software Foundation, Inc.
+# Copyright (C) 2006, 2008, 2010 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 2
+# serial 3
 
 # _AM_SUBST_NOTMAKE(VARIABLE)
 # ---------------------------
@@ -9369,7 +9550,7 @@ AC_SUBST([INSTALL_STRIP_PROGRAM])])
 AC_DEFUN([_AM_SUBST_NOTMAKE])
 
 # AM_SUBST_NOTMAKE(VARIABLE)
-# ---------------------------
+# --------------------------
 # Public sister of _AM_SUBST_NOTMAKE.
 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 
diff --git a/change.log b/change.log
index 94865b3..729bca6 100644
--- a/change.log
+++ b/change.log
@@ -1,6 +1,26 @@
 CHANGE LOG for Independent JPEG Group's JPEG software
 
 
+Version 8d  15-Jan-2012
+-----------------------
+
+Add cjpeg -rgb option to create RGB JPEG files.
+Using this switch suppresses the conversion from RGB
+colorspace input to the default YCbCr JPEG colorspace.
+This feature allows true lossless JPEG coding of RGB color images.
+The recommended command for this purpose is currently
+cjpeg -rgb -block 1 -arithmetic.
+SmartScale capable decoder (introduced with IJG JPEG 8) required.
+Thank to Michael Koch for the initial suggestion.
+
+Add option to disable the region adjustment in the transupp crop code.
+Thank to Jeffrey Friedl for the suggestion.
+
+Thank to Richard Jones and Edd Dawson for various minor corrections.
+
+Thank to Akim Demaille for configure.ac cleanup.
+
+
 Version 8c  16-Jan-2011
 -----------------------
 
diff --git a/cjpeg.1 b/cjpeg.1
index d50bf80..c10f971 100644
--- a/cjpeg.1
+++ b/cjpeg.1
@@ -1,4 +1,4 @@
-.TH CJPEG 1 "14 November 2010"
+.TH CJPEG 1 "28 August 2011"
 .SH NAME
 cjpeg \- compress an image file to a JPEG file
 .SH SYNOPSIS
@@ -49,6 +49,14 @@ By saying
 .BR \-grayscale ,
 you'll get a smaller JPEG file that takes less time to process.
 .TP
+.B \-rgb
+Create RGB JPEG file.
+Using this switch suppresses the conversion from RGB
+colorspace input to the default YCbCr JPEG colorspace.
+Use this switch in combination with the
+.BI \-block " N"
+switch (see below) for lossless JPEG coding.
+.TP
 .B \-optimize
 Perform optimization of entropy encoding parameters.  Without this, default
 encoding parameters are used.
@@ -155,6 +163,12 @@ about the same --- often a little smaller.
 .PP
 Switches for advanced users:
 .TP
+.B \-arithmetic
+Use arithmetic coding.
+.B Caution:
+arithmetic coded JPEG is not yet widely implemented, so many decoders will be
+unable to view an arithmetic coded JPEG file at all.
+.TP
 .BI \-block " N"
 Set DCT block size.  All N from 1 to 16 are possible.
 Default is 8 (baseline format).
@@ -162,9 +176,10 @@ Larger values produce higher compression,
 smaller values produce higher quality
 (exact DCT stage possible with 1 or 2; with the default quality of 75 and
 default Luminance qtable the DCT+Quantization stage is lossless for N=1).
-CAUTION: An implementation of the JPEG SmartScale extension is required for
-this feature.  SmartScale enabled JPEG is not yet widely implemented, so
-many decoders will be unable to view a SmartScale extended JPEG file at all.
+.B Caution:
+An implementation of the JPEG SmartScale extension is required for this
+feature.  SmartScale enabled JPEG is not yet widely implemented, so many
+decoders will be unable to view a SmartScale extended JPEG file at all.
 .TP
 .B \-dct int
 Use integer DCT method (default).
@@ -233,12 +248,6 @@ visibly blur the image, however.
 .PP
 Switches for wizards:
 .TP
-.B \-arithmetic
-Use arithmetic coding.
-.B Caution:
-arithmetic coded JPEG is not yet widely implemented, so many decoders will be
-unable to view an arithmetic coded JPEG file at all.
-.TP
 .B \-baseline
 Force baseline-compatible quantization tables to be generated.  This clamps
 quantization values to 8 bits even at low quality settings.  (This switch is
diff --git a/cjpeg.c b/cjpeg.c
index 40d2521..9a9a09a 100644
--- a/cjpeg.c
+++ b/cjpeg.c
@@ -2,7 +2,7 @@
  * cjpeg.c
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2003-2010 by Guido Vollbeding.
+ * Modified 2003-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -152,6 +152,7 @@ usage (void)
   fprintf(stderr, "Switches (names may be abbreviated):\n");
   fprintf(stderr, "  -quality N[,...]   Compression quality (0..100; 5-95 is useful range)\n");
   fprintf(stderr, "  -grayscale     Create monochrome JPEG file\n");
+  fprintf(stderr, "  -rgb           Create RGB JPEG file\n");
 #ifdef ENTROPY_OPT_SUPPORTED
   fprintf(stderr, "  -optimize      Optimize Huffman table (smaller file, but slow compression)\n");
 #endif
@@ -165,6 +166,9 @@ usage (void)
   fprintf(stderr, "  -targa         Input file is Targa format (usually not needed)\n");
 #endif
   fprintf(stderr, "Switches for advanced users:\n");
+#ifdef C_ARITH_CODING_SUPPORTED
+  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
+#endif
 #ifdef DCT_SCALING_SUPPORTED
   fprintf(stderr, "  -block N       DCT block size (1..16; default is 8)\n");
 #endif
@@ -189,9 +193,6 @@ usage (void)
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
   fprintf(stderr, "Switches for wizards:\n");
-#ifdef C_ARITH_CODING_SUPPORTED
-  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
-#endif
   fprintf(stderr, "  -baseline      Force baseline quantization tables\n");
   fprintf(stderr, "  -qtables file  Use quantization tables given in file\n");
   fprintf(stderr, "  -qslots N[,...]    Set component quantization tables\n");
@@ -263,9 +264,8 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
 
     } else if (keymatch(arg, "block", 2)) {
       /* Set DCT block size. */
-#if defined(DCT_SCALING_SUPPORTED) && defined(JPEG_LIB_VERSION_MAJOR) && \
-    (JPEG_LIB_VERSION_MAJOR > 8 || (JPEG_LIB_VERSION_MAJOR == 8 && \
-     defined(JPEG_LIB_VERSION_MINOR) && JPEG_LIB_VERSION_MINOR >= 3))
+#if defined DCT_SCALING_SUPPORTED && JPEG_LIB_VERSION_MAJOR >= 8 && \
+      (JPEG_LIB_VERSION_MAJOR > 8 || JPEG_LIB_VERSION_MINOR >= 3)
       int val;
 
       if (++argn >= argc)	/* advance to next argument */
@@ -310,6 +310,10 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
       /* Force a monochrome JPEG file to be generated. */
       jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
 
+    } else if (keymatch(arg, "rgb", 3)) {
+      /* Force an RGB JPEG file to be generated. */
+      jpeg_set_colorspace(cinfo, JCS_RGB);
+
     } else if (keymatch(arg, "maxmemory", 3)) {
       /* Maximum memory in Kb (or Mb with 'm'). */
       long lval;
diff --git a/config.guess b/config.guess
index dc84c68..8152efd 100755
--- a/config.guess
+++ b/config.guess
@@ -1,10 +1,10 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-#   Free Software Foundation, Inc.
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011 Free Software Foundation, Inc.
 
-timestamp='2009-11-20'
+timestamp='2011-11-11'
 
 # 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
@@ -56,8 +56,9 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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."
@@ -180,7 +181,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		fi
 		;;
 	    *)
-	        os=netbsd
+		os=netbsd
 		;;
 	esac
 	# The OS release
@@ -223,7 +224,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
 		;;
 	*5.*)
-	        UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
 		;;
 	esac
 	# According to Compaq, /usr/sbin/psrinfo has been available on
@@ -269,7 +270,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	# A Xn.n version is an unreleased experimental baselevel.
 	# 1.2 uses "1.2" for uname -r.
 	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-	exit ;;
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
     Alpha\ *:Windows_NT*:*)
 	# How do we know it's Interix rather than the generic POSIX subsystem?
 	# Should we change UNAME_MACHINE based on the output of uname instead
@@ -295,7 +299,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	echo s390-ibm-zvmoe
 	exit ;;
     *:OS400:*:*)
-        echo powerpc-ibm-os400
+	echo powerpc-ibm-os400
 	exit ;;
     arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
 	echo arm-acorn-riscix${UNAME_RELEASE}
@@ -394,23 +398,23 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     # MiNT.  But MiNT is downward compatible to TOS, so this should
     # be no problem.
     atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
-        echo m68k-atari-mint${UNAME_RELEASE}
+	echo m68k-atari-mint${UNAME_RELEASE}
 	exit ;;
     atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
 	echo m68k-atari-mint${UNAME_RELEASE}
-        exit ;;
+	exit ;;
     *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
-        echo m68k-atari-mint${UNAME_RELEASE}
+	echo m68k-atari-mint${UNAME_RELEASE}
 	exit ;;
     milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
-        echo m68k-milan-mint${UNAME_RELEASE}
-        exit ;;
+	echo m68k-milan-mint${UNAME_RELEASE}
+	exit ;;
     hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
-        echo m68k-hades-mint${UNAME_RELEASE}
-        exit ;;
+	echo m68k-hades-mint${UNAME_RELEASE}
+	exit ;;
     *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
-        echo m68k-unknown-mint${UNAME_RELEASE}
-        exit ;;
+	echo m68k-unknown-mint${UNAME_RELEASE}
+	exit ;;
     m68k:machten:*:*)
 	echo m68k-apple-machten${UNAME_RELEASE}
 	exit ;;
@@ -480,8 +484,8 @@ EOF
 	echo m88k-motorola-sysv3
 	exit ;;
     AViiON:dgux:*:*)
-        # DG/UX returns AViiON for all architectures
-        UNAME_PROCESSOR=`/usr/bin/uname -p`
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
 	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
 	then
 	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
@@ -494,7 +498,7 @@ EOF
 	else
 	    echo i586-dg-dgux${UNAME_RELEASE}
 	fi
- 	exit ;;
+	exit ;;
     M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
 	echo m88k-dolphin-sysv3
 	exit ;;
@@ -551,7 +555,7 @@ EOF
 		echo rs6000-ibm-aix3.2
 	fi
 	exit ;;
-    *:AIX:*:[456])
+    *:AIX:*:[4567])
 	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
 	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
 		IBM_ARCH=rs6000
@@ -594,52 +598,52 @@ EOF
 	    9000/[678][0-9][0-9])
 		if [ -x /usr/bin/getconf ]; then
 		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
-                    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
-                    case "${sc_cpu_version}" in
-                      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
-                      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
-                      532)                      # CPU_PA_RISC2_0
-                        case "${sc_kernel_bits}" in
-                          32) HP_ARCH="hppa2.0n" ;;
-                          64) HP_ARCH="hppa2.0w" ;;
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "${sc_cpu_version}" in
+		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "${sc_kernel_bits}" in
+			  32) HP_ARCH="hppa2.0n" ;;
+			  64) HP_ARCH="hppa2.0w" ;;
 			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
-                        esac ;;
-                    esac
+			esac ;;
+		    esac
 		fi
 		if [ "${HP_ARCH}" = "" ]; then
 		    eval $set_cc_for_build
-		    sed 's/^              //' << EOF >$dummy.c
+		    sed 's/^		//' << EOF >$dummy.c
 
-              #define _HPUX_SOURCE
-              #include <stdlib.h>
-              #include <unistd.h>
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
 
-              int main ()
-              {
-              #if defined(_SC_KERNEL_BITS)
-                  long bits = sysconf(_SC_KERNEL_BITS);
-              #endif
-                  long cpu  = sysconf (_SC_CPU_VERSION);
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
 
-                  switch (cpu)
-              	{
-              	case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
-              	case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
-              	case CPU_PA_RISC2_0:
-              #if defined(_SC_KERNEL_BITS)
-              	    switch (bits)
-              		{
-              		case 64: puts ("hppa2.0w"); break;
-              		case 32: puts ("hppa2.0n"); break;
-              		default: puts ("hppa2.0"); break;
-              		} break;
-              #else  /* !defined(_SC_KERNEL_BITS) */
-              	    puts ("hppa2.0"); break;
-              #endif
-              	default: puts ("hppa1.0"); break;
-              	}
-                  exit (0);
-              }
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
 EOF
 		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
 		    test -z "$HP_ARCH" && HP_ARCH=hppa
@@ -730,22 +734,22 @@ EOF
 	exit ;;
     C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
 	echo c1-convex-bsd
-        exit ;;
+	exit ;;
     C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
 	if getsysinfo -f scalar_acc
 	then echo c32-convex-bsd
 	else echo c2-convex-bsd
 	fi
-        exit ;;
+	exit ;;
     C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
 	echo c34-convex-bsd
-        exit ;;
+	exit ;;
     C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
 	echo c38-convex-bsd
-        exit ;;
+	exit ;;
     C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
 	echo c4-convex-bsd
-        exit ;;
+	exit ;;
     CRAY*Y-MP:*:*:*)
 	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
 	exit ;;
@@ -769,14 +773,14 @@ EOF
 	exit ;;
     F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
 	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-        FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
-        echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
-        exit ;;
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
     5000:UNIX_System_V:4.*:*)
-        FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
-        FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
-        echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
 	exit ;;
     i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
 	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
@@ -788,13 +792,12 @@ EOF
 	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
 	exit ;;
     *:FreeBSD:*:*)
-	case ${UNAME_MACHINE} in
-	    pc98)
-		echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
 	    amd64)
 		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	    *)
-		echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
 	esac
 	exit ;;
     i*:CYGWIN*:*)
@@ -803,15 +806,18 @@ EOF
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
     i*:windows32*:*)
-    	# uname -m includes "-pc" on this system.
-    	echo ${UNAME_MACHINE}-mingw32
+	# uname -m includes "-pc" on this system.
+	echo ${UNAME_MACHINE}-mingw32
 	exit ;;
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
 	exit ;;
     *:Interix*:*)
-    	case ${UNAME_MACHINE} in
+	case ${UNAME_MACHINE} in
 	    x86)
 		echo i586-pc-interix${UNAME_RELEASE}
 		exit ;;
@@ -866,7 +872,7 @@ EOF
 	  EV6)   UNAME_MACHINE=alphaev6 ;;
 	  EV67)  UNAME_MACHINE=alphaev67 ;;
 	  EV68*) UNAME_MACHINE=alphaev68 ;;
-        esac
+	esac
 	objdump --private-headers /bin/sh | grep -q ld.so.1
 	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
 	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
@@ -878,7 +884,13 @@ EOF
 	then
 	    echo ${UNAME_MACHINE}-unknown-linux-gnu
 	else
-	    echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+	    fi
 	fi
 	exit ;;
     avr32*:Linux:*:*)
@@ -891,7 +903,10 @@ EOF
 	echo crisv32-axis-linux-gnu
 	exit ;;
     frv:Linux:*:*)
-    	echo frv-unknown-linux-gnu
+	echo frv-unknown-linux-gnu
+	exit ;;
+    hexagon:Linux:*:*)
+	echo hexagon-unknown-linux-gnu
 	exit ;;
     i*86:Linux:*:*)
 	LIBC=gnu
@@ -959,7 +974,7 @@ EOF
 	echo ${UNAME_MACHINE}-ibm-linux
 	exit ;;
     sh64*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
     sh*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
@@ -967,6 +982,9 @@ EOF
     sparc:Linux:*:* | sparc64:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
     vax:Linux:*:*)
 	echo ${UNAME_MACHINE}-dec-linux-gnu
 	exit ;;
@@ -974,7 +992,7 @@ EOF
 	echo x86_64-unknown-linux-gnu
 	exit ;;
     xtensa*:Linux:*:*)
-    	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit ;;
     i*86:DYNIX/ptx:4*:*)
 	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
@@ -983,11 +1001,11 @@ EOF
 	echo i386-sequent-sysv4
 	exit ;;
     i*86:UNIX_SV:4.2MP:2.*)
-        # Unixware is an offshoot of SVR4, but it has its own version
-        # number series starting with 2...
-        # I am not positive that other SVR4 systems won't match this,
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
 	# I just have to hope.  -- rms.
-        # Use sysv4.2uw... so that sysv4* matches it.
+	# Use sysv4.2uw... so that sysv4* matches it.
 	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
 	exit ;;
     i*86:OS/2:*:*)
@@ -1019,7 +1037,7 @@ EOF
 	fi
 	exit ;;
     i*86:*:5:[678]*)
-    	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
 	case `/bin/uname -X | grep "^Machine"` in
 	    *486*)	     UNAME_MACHINE=i486 ;;
 	    *Pentium)	     UNAME_MACHINE=i586 ;;
@@ -1047,13 +1065,13 @@ EOF
 	exit ;;
     pc:*:*:*)
 	# Left here for compatibility:
-        # uname -m prints for DJGPP always 'pc', but it prints nothing about
-        # the processor, so we play safe by assuming i586.
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
 	# Note: whatever this is, it MUST be the same as what config.sub
 	# prints for the "djgpp" host, or else GDB configury will decide that
 	# this is a cross-build.
 	echo i586-pc-msdosdjgpp
-        exit ;;
+	exit ;;
     Intel:Mach:3*:*)
 	echo i386-pc-mach3
 	exit ;;
@@ -1088,8 +1106,8 @@ EOF
 	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
 	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
     3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
-        /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
-          && { echo i486-ncr-sysv4; exit; } ;;
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
     NCR*:*:4.2:* | MPRAS*:*:4.2:*)
 	OS_REL='.3'
 	test -r /etc/.relid \
@@ -1132,10 +1150,10 @@ EOF
 		echo ns32k-sni-sysv
 	fi
 	exit ;;
-    PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
-                      # says <Richard.M.Bartel@ccMail.Census.GOV>
-        echo i586-unisys-sysv4
-        exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
     *:UNIX_System_V:4*:FTX*)
 	# From Gerald Hewes <hewes@openmarket.com>.
 	# How about differentiating between stratus architectures? -djm
@@ -1161,11 +1179,11 @@ EOF
 	exit ;;
     R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
 	if [ -d /usr/nec ]; then
-	        echo mips-nec-sysv${UNAME_RELEASE}
+		echo mips-nec-sysv${UNAME_RELEASE}
 	else
-	        echo mips-unknown-sysv${UNAME_RELEASE}
+		echo mips-unknown-sysv${UNAME_RELEASE}
 	fi
-        exit ;;
+	exit ;;
     BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
 	echo powerpc-be-beos
 	exit ;;
@@ -1230,6 +1248,9 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
     NSE-?:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
@@ -1275,13 +1296,13 @@ EOF
 	echo pdp10-unknown-its
 	exit ;;
     SEI:*:*:SEIUX)
-        echo mips-sei-seiux${UNAME_RELEASE}
+	echo mips-sei-seiux${UNAME_RELEASE}
 	exit ;;
     *:DragonFly:*:*)
 	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
 	exit ;;
     *:*VMS:*:*)
-    	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
 	case "${UNAME_MACHINE}" in
 	    A*) echo alpha-dec-vms ; exit ;;
 	    I*) echo ia64-dec-vms ; exit ;;
@@ -1321,11 +1342,11 @@ main ()
 #include <sys/param.h>
   printf ("m68k-sony-newsos%s\n",
 #ifdef NEWSOS4
-          "4"
+	"4"
 #else
-	  ""
+	""
 #endif
-         ); exit (0);
+	); exit (0);
 #endif
 #endif
 
diff --git a/config.sub b/config.sub
index 2a55a50..e76eaf4 100755
--- a/config.sub
+++ b/config.sub
@@ -1,10 +1,10 @@
 #! /bin/sh
 # Configuration validation subroutine script.
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-#   Free Software Foundation, Inc.
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011 Free Software Foundation, Inc.
 
-timestamp='2009-11-20'
+timestamp='2011-11-11'
 
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
@@ -75,8 +75,9 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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."
@@ -123,8 +124,9 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
-  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
   kopensolaris*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
@@ -156,8 +158,8 @@ case $os in
 		os=
 		basic_machine=$1
 		;;
-        -bluegene*)
-	        os=-cnk
+	-bluegene*)
+		os=-cnk
 		;;
 	-sim | -cisco | -oki | -wec | -winbond)
 		os=
@@ -173,10 +175,10 @@ case $os in
 		os=-chorusos
 		basic_machine=$1
 		;;
- 	-chorusrdb)
- 		os=-chorusrdb
+	-chorusrdb)
+		os=-chorusrdb
 		basic_machine=$1
- 		;;
+		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
@@ -249,13 +251,17 @@ case $basic_machine in
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
 	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+        | be32 | be64 \
 	| bfin \
 	| c4x | clipper \
 	| d10v | d30v | dlx | dsp16xx \
+	| epiphany \
 	| fido | fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
+	| le32 | le64 \
 	| lm32 \
 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
 	| maxq | mb | microblaze | mcore | mep | metag \
@@ -281,27 +287,38 @@ case $basic_machine in
 	| moxie \
 	| mt \
 	| msp430 \
+	| nds32 | nds32le | nds32be \
 	| nios | nios2 \
 	| ns16k | ns32k \
+	| open8 \
 	| or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
-	| rx \
+	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu | strongarm \
-	| tahoe | thumb | tic4x | tic80 | tron \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
-	| v850 | v850e \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
 	| we32k \
-	| x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
 		basic_machine=$basic_machine-unknown
 		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
 	m6811 | m68hc11 | m6812 | m68hc12 | picochip)
 		# Motorola 68HC11/12.
 		basic_machine=$basic_machine-unknown
@@ -313,6 +330,18 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;
 
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
@@ -332,16 +361,19 @@ case $basic_machine in
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
 	| avr-* | avr32-* \
+	| be32-* | be64-* \
 	| bfin-* | bs2000-* \
-	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
 	| clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
 	| elxsi-* \
 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
+	| le32-* | le64-* \
 	| lm32-* \
 	| m32c-* | m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
@@ -367,25 +399,29 @@ case $basic_machine in
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
 	| nios-* | nios2-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
 	| pyramid-* \
-	| romp-* | rs6000-* | rx-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
-	| tahoe-* | thumb-* \
-	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* | tile-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
 	| tron-* \
 	| ubicom32-* \
-	| v850-* | v850e-* | vax-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
 	| ymp-* \
 	| z8k-* | z80-*)
@@ -410,7 +446,7 @@ case $basic_machine in
 		basic_machine=a29k-amd
 		os=-udi
 		;;
-    	abacus)
+	abacus)
 		basic_machine=abacus-unknown
 		;;
 	adobe68k)
@@ -480,11 +516,20 @@ case $basic_machine in
 		basic_machine=powerpc-ibm
 		os=-cnk
 		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	c90)
 		basic_machine=c90-cray
 		os=-unicos
 		;;
-        cegcc)
+	cegcc)
 		basic_machine=arm-unknown
 		os=-cegcc
 		;;
@@ -516,7 +561,7 @@ case $basic_machine in
 		basic_machine=craynv-cray
 		os=-unicosmp
 		;;
-	cr16)
+	cr16 | cr16-*)
 		basic_machine=cr16-unknown
 		os=-elf
 		;;
@@ -732,7 +777,7 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
-        microblaze)
+	microblaze)
 		basic_machine=microblaze-xilinx
 		;;
 	mingw32)
@@ -771,10 +816,18 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
+	msys)
+		basic_machine=i386-pc
+		os=-msys
+		;;
 	mvs)
 		basic_machine=i370-ibm
 		os=-mvs
 		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -839,6 +892,12 @@ case $basic_machine in
 	np1)
 		basic_machine=np1-gould
 		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
@@ -921,9 +980,10 @@ case $basic_machine in
 		;;
 	power)	basic_machine=power-ibm
 		;;
-	ppc)	basic_machine=powerpc-unknown
+	ppc | ppcbe)	basic_machine=powerpc-unknown
 		;;
-	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)
 		basic_machine=powerpcle-unknown
@@ -1017,6 +1077,9 @@ case $basic_machine in
 		basic_machine=i860-stratus
 		os=-sysv4
 		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -1073,20 +1136,8 @@ case $basic_machine in
 		basic_machine=t90-cray
 		os=-unicos
 		;;
-	tic54x | c54x*)
-		basic_machine=tic54x-unknown
-		os=-coff
-		;;
-	tic55x | c55x*)
-		basic_machine=tic55x-unknown
-		os=-coff
-		;;
-	tic6x | c6x*)
-		basic_machine=tic6x-unknown
-		os=-coff
-		;;
 	tile*)
-		basic_machine=tile-unknown
+		basic_machine=$basic_machine-unknown
 		os=-linux-gnu
 		;;
 	tx39)
@@ -1156,6 +1207,9 @@ case $basic_machine in
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
@@ -1253,11 +1307,11 @@ esac
 if [ x"$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
+	-auroraux)
+		os=-auroraux
 		;;
 	-solaris1 | -solaris1.*)
 		os=`echo $os | sed -e 's|solaris1|sunos4|'`
@@ -1293,8 +1347,9 @@ case $os in
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* | -cegcc* \
-	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
@@ -1341,7 +1396,7 @@ case $os in
 	-opened*)
 		os=-openedition
 		;;
-        -os400*)
+	-os400*)
 		os=-os400
 		;;
 	-wince*)
@@ -1390,7 +1445,7 @@ case $os in
 	-sinix*)
 		os=-sysv4
 		;;
-        -tpf*)
+	-tpf*)
 		os=-tpf
 		;;
 	-triton*)
@@ -1435,6 +1490,8 @@ case $os in
 	-dicos*)
 		os=-dicos
 		;;
+	-nacl*)
+		;;
 	-none)
 		;;
 	*)
@@ -1457,10 +1514,10 @@ else
 # system, and we'll never get to this point.
 
 case $basic_machine in
-        score-*)
+	score-*)
 		os=-elf
 		;;
-        spu-*)
+	spu-*)
 		os=-elf
 		;;
 	*-acorn)
@@ -1472,8 +1529,17 @@ case $basic_machine in
 	arm*-semi)
 		os=-aout
 		;;
-        c4x-* | tic4x-*)
-        	os=-coff
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
 		;;
 	# This must come before the *-dec entry.
 	pdp10-*)
@@ -1500,7 +1566,7 @@ case $basic_machine in
 	m68*-cisco)
 		os=-aout
 		;;
-        mep-*)
+	mep-*)
 		os=-elf
 		;;
 	mips*-cisco)
@@ -1527,7 +1593,7 @@ case $basic_machine in
 	*-ibm)
 		os=-aix
 		;;
-    	*-knuth)
+	*-knuth)
 		os=-mmixware
 		;;
 	*-wec)
diff --git a/configure b/configure
index 97b17b1..9ba1383 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for libjpeg 8.3.0.
+# Generated by GNU Autoconf 2.68 for libjpeg 8.4.0.
 #
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -567,8 +567,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='libjpeg'
 PACKAGE_TARNAME='libjpeg'
-PACKAGE_VERSION='8.3.0'
-PACKAGE_STRING='libjpeg 8.3.0'
+PACKAGE_VERSION='8.4.0'
+PACKAGE_STRING='libjpeg 8.4.0'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -647,6 +647,7 @@ CPP
 am__fastdepCC_FALSE
 am__fastdepCC_TRUE
 CCDEPMODE
+am__nodep
 AMDEPBACKSLASH
 AMDEP_FALSE
 AMDEP_TRUE
@@ -759,14 +760,7 @@ CFLAGS
 LDFLAGS
 LIBS
 CPPFLAGS
-CPP
-CPPFLAGS
-CC
-LDFLAGS
-LIBS
-CPPFLAGS
-CPP
-CPPFLAGS'
+CPP'
 
 
 # Initialize some variables set by options.
@@ -1309,7 +1303,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures libjpeg 8.3.0 to adapt to many kinds of systems.
+\`configure' configures libjpeg 8.4.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1380,7 +1374,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libjpeg 8.3.0:";;
+     short | recursive ) echo "Configuration of libjpeg 8.4.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1407,7 +1401,7 @@ Optional Features:
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --with-pic              try to use only PIC/non-PIC objects [default=use
+  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
                           both]
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-sysroot=DIR Search for dependent libraries within DIR
@@ -1489,7 +1483,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libjpeg configure 8.3.0
+libjpeg configure 8.4.0
 generated by GNU Autoconf 2.68
 
 Copyright (C) 2010 Free Software Foundation, Inc.
@@ -1854,7 +1848,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by libjpeg $as_me 8.3.0, which was
+It was created by libjpeg $as_me 8.4.0, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   $ $0 $@
@@ -2793,7 +2787,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='libjpeg'
- VERSION='8.3.0'
+ VERSION='8.4.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2903,6 +2897,7 @@ fi
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
+  am__nodep='_no'
 fi
  if test "x$enable_dependency_tracking" != xno; then
   AMDEP_TRUE=
@@ -3716,6 +3711,7 @@ else
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -3775,7 +3771,7 @@ else
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -4245,6 +4241,7 @@ done
 
 
 
+
 if test "$ac_cv_prog_cc_stdc" != no; then
   U= ANSI2KNR=
 else
@@ -4847,6 +4844,7 @@ else
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -4906,7 +4904,7 @@ else
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -5508,13 +5506,6 @@ int testfunction (int arg1, int * arg2) /* check definitions */
 int test2function (void)	/* check void arg list */
 { return 0; }
 
-int
-main ()
-{
-
-  ;
-  return 0;
-}
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   ijg_cv_have_prototypes=yes
@@ -5531,11 +5522,16 @@ if test $ijg_cv_have_prototypes = yes; then
 $as_echo "#define HAVE_PROTOTYPES 1" >>confdefs.h
 
 else
-  echo Your compiler does not seem to know about function prototypes.
-  echo Perhaps it needs a special switch to enable ANSI C mode.
-  echo If so, we recommend running configure like this:
-  echo "   ./configure  CC='cc -switch'"
-  echo where -switch is the proper switch.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Your compiler does not seem to know about function prototypes.
+    Perhaps it needs a special switch to enable ANSI C mode.
+    If so, we recommend running configure like this:
+       ./configure  CC='cc -switch'
+    where -switch is the proper switch." >&5
+$as_echo "$as_me: WARNING: Your compiler does not seem to know about function prototypes.
+    Perhaps it needs a special switch to enable ANSI C mode.
+    If so, we recommend running configure like this:
+       ./configure  CC='cc -switch'
+    where -switch is the proper switch." >&2;}
 fi
 
 # Check header files
@@ -5601,12 +5597,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_size_t_ok" >&5
 $as_echo "$ijg_size_t_ok" >&6; }
 if test "$ijg_size_t_ok" != yes; then
-ac_fn_c_check_header_mongrel "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
 if test "x$ac_cv_header_sys_types_h" = xyes; then :
 
 $as_echo "#define NEED_SYS_TYPES_H 1" >>confdefs.h
 
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 _ACEOF
@@ -5623,12 +5619,14 @@ else
 fi
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_size_t_ok" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ijg_size_t_ok" >&5
 $as_echo "$ijg_size_t_ok" >&6; }
-if test "$ijg_size_t_ok" = no; then
-  echo Type size_t is not defined in any of the usual places.
-  echo Try putting '"typedef unsigned int size_t;"' in jconfig.h.
-fi
+  if test "$ijg_size_t_ok" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Type size_t is not defined in any of the usual places.
+      Try putting '\"typedef unsigned int size_t;\"' in jconfig.h." >&5
+$as_echo "$as_me: WARNING: Type size_t is not defined in any of the usual places.
+      Try putting '\"typedef unsigned int size_t;\"' in jconfig.h." >&2;}
+  fi
 fi
 
 # Check compiler characteristics
@@ -5656,6 +5654,7 @@ else
 $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type unsigned short" >&5
 $as_echo_n "checking for type unsigned short... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5680,6 +5679,7 @@ else
 $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for type void" >&5
 $as_echo_n "checking for type void... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5928,8 +5928,10 @@ rm -f core conftest.err conftest.$ac_objext \
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if char is signed" >&5
 $as_echo_n "checking to see if char is signed... " >&6; }
 if test "$cross_compiling" = yes; then :
-  echo Assuming that char is signed on target machine.
-echo If it is unsigned, this will be a little bit inefficient.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Assuming that char is signed on target machine.
+    If it is unsigned, this will be a little bit inefficient." >&5
+$as_echo "$as_me: WARNING: Assuming that char is signed on target machine.
+    If it is unsigned, this will be a little bit inefficient." >&2;}
 
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5970,6 +5972,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if right shift is signed" >&5
 $as_echo_n "checking to see if right shift is signed... " >&6; }
 if test "$cross_compiling" = yes; then :
@@ -6020,6 +6023,7 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if fopen accepts b spec" >&5
 $as_echo_n "checking to see if fopen accepts b spec... " >&6; }
 if test "$cross_compiling" = yes; then :
@@ -6363,8 +6367,8 @@ esac
 
 
 
-macro_version='2.4'
-macro_revision='1.3293'
+macro_version='2.4.2'
+macro_revision='1.3337'
 
 
 
@@ -6997,6 +7001,11 @@ else
     lt_cv_sys_max_cmd_len=196608
     ;;
 
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
   osf*)
     # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
     # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
@@ -7036,7 +7045,7 @@ else
       # If test is not a shell built-in, we'll probably end up computing a
       # maximum length that is only half of the actual maximum length, but
       # we can't tell.
-      while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \
+      while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
 	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
 	      test $i != 17 # 1/2 MB should be enough
       do
@@ -7462,7 +7471,7 @@ irix5* | irix6* | nonstopux*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-# This must be Linux ELF.
+# This must be glibc/ELF.
 linux* | k*bsd*-gnu | kopensolaris*-gnu)
   lt_cv_deplibs_check_method=pass_all
   ;;
@@ -8099,13 +8108,13 @@ old_postuninstall_cmds=
 if test -n "$RANLIB"; then
   case $host_os in
   openbsd*)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
     ;;
   *)
-    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
     ;;
   esac
-  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
 fi
 
 case $host_os in
@@ -8252,6 +8261,7 @@ for ac_symprfx in "" "_"; do
     # which start with @ or ?.
     lt_cv_sys_global_symbol_pipe="$AWK '"\
 "     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
 "     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
 "     \$ 0!~/External *\|/{next};"\
 "     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
@@ -8640,7 +8650,7 @@ $as_echo "$lt_cv_cc_needs_belf" >&6; }
     CFLAGS="$SAVE_CFLAGS"
   fi
   ;;
-sparc*-*solaris*)
+*-*solaris*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
@@ -8651,7 +8661,20 @@ sparc*-*solaris*)
     case `/usr/bin/file conftest.o` in
     *64-bit*)
       case $lt_cv_prog_gnu_ld in
-      yes*) LD="${LD-ld} -m elf64_sparc" ;;
+      yes*)
+        case $host in
+        i?86-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD="${LD-ld}_sol2"
+        fi
+        ;;
       *)
 	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
 	  LD="${LD-ld} -64"
@@ -9291,7 +9314,13 @@ else
 	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
 	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
         _lt_result=$?
-	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&5
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test $_lt_result -eq 0; then
 	  lt_cv_apple_cc_single_mod=yes
 	else
 	  cat conftest.err >&5
@@ -9302,6 +9331,7 @@ else
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
 $as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
 $as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
 if ${lt_cv_ld_exported_symbols_list+:} false; then :
@@ -9334,6 +9364,7 @@ rm -f core conftest.err conftest.$ac_objext \
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
 $as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
 $as_echo_n "checking for -force_load linker flag... " >&6; }
 if ${lt_cv_ld_force_load+:} false; then :
@@ -9355,7 +9386,9 @@ _LT_EOF
       echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
       $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
       _lt_result=$?
-      if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&5
+      elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
 	lt_cv_ld_force_load=yes
       else
 	cat conftest.err >&5
@@ -9491,7 +9524,22 @@ fi
 
 # Check whether --with-pic was given.
 if test "${with_pic+set}" = set; then :
-  withval=$with_pic; pic_mode="$withval"
+  withval=$with_pic; lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for lt_pkg in $withval; do
+	IFS="$lt_save_ifs"
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
 else
   pic_mode=default
 fi
@@ -9564,6 +9612,10 @@ LIBTOOL='$(SHELL) $(top_builddir)/libtool'
 
 
 
+
+
+
+
 
 
 
@@ -10024,7 +10076,9 @@ lt_prog_compiler_static=
     case $cc_basename in
     nvcc*) # Cuda Compiler Driver 2.2
       lt_prog_compiler_wl='-Xlinker '
-      lt_prog_compiler_pic='-Xcompiler -fPIC'
+      if test -n "$lt_prog_compiler_pic"; then
+        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+      fi
       ;;
     esac
   else
@@ -10115,18 +10169,33 @@ lt_prog_compiler_static=
 	;;
       *)
 	case `$CC -V 2>&1 | sed 5q` in
-	*Sun\ F* | *Sun*Fortran*)
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
 	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
 	  lt_prog_compiler_pic='-KPIC'
 	  lt_prog_compiler_static='-Bstatic'
 	  lt_prog_compiler_wl=''
 	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Qoption ld '
+	  ;;
 	*Sun\ C*)
 	  # Sun C 5.9
 	  lt_prog_compiler_pic='-KPIC'
 	  lt_prog_compiler_static='-Bstatic'
 	  lt_prog_compiler_wl='-Wl,'
 	  ;;
+        *Intel*\ [CF]*Compiler*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fPIC'
+	  lt_prog_compiler_static='-static'
+	  ;;
+	*Portland\ Group*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fpic'
+	  lt_prog_compiler_static='-Bstatic'
+	  ;;
 	esac
 	;;
       esac
@@ -10488,7 +10557,6 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
   hardcode_direct=no
   hardcode_direct_absolute=no
   hardcode_libdir_flag_spec=
-  hardcode_libdir_flag_spec_ld=
   hardcode_libdir_separator=
   hardcode_minus_L=no
   hardcode_shlibpath_var=unsupported
@@ -10738,8 +10806,7 @@ _LT_EOF
 	xlf* | bgf* | bgxlf* | mpixlf*)
 	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
 	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
-	  hardcode_libdir_flag_spec=
-	  hardcode_libdir_flag_spec_ld='-rpath $libdir'
+	  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
 	  if test "x$supports_anon_versioning" = xyes; then
 	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
@@ -11118,6 +11185,7 @@ fi
 	# The linker will not automatically build a static lib if we build a DLL.
 	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
 	enable_shared_with_static_runtimes=yes
+	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
 	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
 	# Don't use ranlib
 	old_postinstall_cmds='chmod 644 $oldlib'
@@ -11163,6 +11231,7 @@ fi
   hardcode_shlibpath_var=unsupported
   if test "$lt_cv_ld_force_load" = "yes"; then
     whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
   else
     whole_archive_flag_spec=''
   fi
@@ -11191,10 +11260,6 @@ fi
       hardcode_shlibpath_var=no
       ;;
 
-    freebsd1*)
-      ld_shlibs=no
-      ;;
-
     # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
     # support.  Future versions do this automatically, but an explicit c++rt0.o
     # does not break anything, and helps significantly (at the cost of a little
@@ -11207,7 +11272,7 @@ fi
       ;;
 
     # Unfortunately, older versions of FreeBSD 2 do not have this feature.
-    freebsd2*)
+    freebsd2.*)
       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
       hardcode_direct=yes
       hardcode_minus_L=yes
@@ -11246,7 +11311,6 @@ fi
       fi
       if test "$with_gnu_ld" = no; then
 	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
-	hardcode_libdir_flag_spec_ld='+b $libdir'
 	hardcode_libdir_separator=:
 	hardcode_direct=yes
 	hardcode_direct_absolute=yes
@@ -11864,11 +11928,6 @@ esac
 
 
 
-
-
-
-
-
 
 
 
@@ -11964,7 +12023,7 @@ need_version=unknown
 
 case $host_os in
 aix3*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
   shlibpath_var=LIBPATH
 
@@ -11973,7 +12032,7 @@ aix3*)
   ;;
 
 aix[4-9]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   hardcode_into_libs=yes
@@ -12038,7 +12097,7 @@ beos*)
   ;;
 
 bsdi[45]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
@@ -12177,7 +12236,7 @@ darwin* | rhapsody*)
   ;;
 
 dgux*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
@@ -12185,10 +12244,6 @@ dgux*)
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
-freebsd1*)
-  dynamic_linker=no
-  ;;
-
 freebsd* | dragonfly*)
   # DragonFly does not have aout.  When/if they implement a new
   # versioning mechanism, adjust this.
@@ -12196,7 +12251,7 @@ freebsd* | dragonfly*)
     objformat=`/usr/bin/objformat`
   else
     case $host_os in
-    freebsd[123]*) objformat=aout ;;
+    freebsd[23].*) objformat=aout ;;
     *) objformat=elf ;;
     esac
   fi
@@ -12214,7 +12269,7 @@ freebsd* | dragonfly*)
   esac
   shlibpath_var=LD_LIBRARY_PATH
   case $host_os in
-  freebsd2*)
+  freebsd2.*)
     shlibpath_overrides_runpath=yes
     ;;
   freebsd3.[01]* | freebsdelf3.[01]*)
@@ -12234,17 +12289,18 @@ freebsd* | dragonfly*)
   ;;
 
 gnu*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
   hardcode_into_libs=yes
   ;;
 
 haiku*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   dynamic_linker="$host_os runtime_loader"
@@ -12305,7 +12361,7 @@ hpux9* | hpux10* | hpux11*)
   ;;
 
 interix[3-9]*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
@@ -12321,7 +12377,7 @@ irix5* | irix6* | nonstopux*)
     nonstopux*) version_type=nonstopux ;;
     *)
 	if test "$lt_cv_prog_gnu_ld" = yes; then
-		version_type=linux
+		version_type=linux # correct to gnu/linux during the next big refactor
 	else
 		version_type=irix
 	fi ;;
@@ -12358,9 +12414,9 @@ linux*oldld* | linux*aout* | linux*coff*)
   dynamic_linker=no
   ;;
 
-# This must be Linux ELF.
+# This must be glibc/ELF.
 linux* | k*bsd*-gnu | kopensolaris*-gnu)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -12442,7 +12498,7 @@ netbsd*)
   ;;
 
 newsos6)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   shlibpath_var=LD_LIBRARY_PATH
   shlibpath_overrides_runpath=yes
@@ -12511,7 +12567,7 @@ rdos*)
   ;;
 
 solaris*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -12536,7 +12592,7 @@ sunos4*)
   ;;
 
 sysv4 | sysv4.3*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
@@ -12560,7 +12616,7 @@ sysv4 | sysv4.3*)
 
 sysv4*MP*)
   if test -d /usr/nec ;then
-    version_type=linux
+    version_type=linux # correct to gnu/linux during the next big refactor
     library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
     soname_spec='$libname${shared_ext}.$major'
     shlibpath_var=LD_LIBRARY_PATH
@@ -12591,7 +12647,7 @@ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
 
 tpf*)
   # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   need_lib_prefix=no
   need_version=no
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
@@ -12601,7 +12657,7 @@ tpf*)
   ;;
 
 uts4*)
-  version_type=linux
+  version_type=linux # correct to gnu/linux during the next big refactor
   library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
@@ -13383,6 +13439,8 @@ CC="$lt_save_CC"
 
 
 
+
+
         ac_config_commands="$ac_config_commands libtool"
 
 
@@ -13414,9 +13472,9 @@ cat >>confdefs.h <<_ACEOF
 #define DEFAULT_MAX_MEM ${DEFAULTMAXMEM}
 _ACEOF
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'tmpfile()'" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'tmpfile()'" >&5
 $as_echo_n "checking for 'tmpfile()'... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdio.h>
 int
@@ -13430,19 +13488,20 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-MEMORYMGR='jmemansi'
+    MEMORYMGR='jmemansi'
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-MEMORYMGR='jmemname'
+        MEMORYMGR='jmemname'
 
-# Test for the need to remove temporary files using a signal handler (for cjpeg/djpeg)
+    # Test for the need to remove temporary files using a signal handler
+    # (for cjpeg/djpeg)
 
 $as_echo "#define NEED_SIGNAL_CATCHER 1" >>confdefs.h
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'mktemp()'" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'mktemp()'" >&5
 $as_echo_n "checking for 'mktemp()'... " >&6; }
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -13474,13 +13533,13 @@ fi
 # Extract the library version IDs from jpeglib.h.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking libjpeg version number" >&5
 $as_echo_n "checking libjpeg version number... " >&6; }
-JPEG_LIB_VERSION_MAJOR=`sed -e '/^#define JPEG_LIB_VERSION_MAJOR/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`
-JPEG_LIB_VERSION_MINOR=`sed -e '/^#define JPEG_LIB_VERSION_MINOR/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`
-JPEG_LIB_VERSION="`expr $JPEG_LIB_VERSION_MAJOR + $JPEG_LIB_VERSION_MINOR`:0:$JPEG_LIB_VERSION_MINOR"
+major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`
+minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`
+JPEG_LIB_VERSION=`expr $major + $minor`:0:$minor
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JPEG_LIB_VERSION" >&5
 $as_echo "$JPEG_LIB_VERSION" >&6; }
 
-
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
@@ -14028,7 +14087,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by libjpeg $as_me 8.3.0, which was
+This file was extended by libjpeg $as_me 8.4.0, which was
 generated by GNU Autoconf 2.68.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -14094,7 +14153,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-libjpeg config.status 8.3.0
+libjpeg config.status 8.4.0
 configured by $0, generated by GNU Autoconf 2.68,
   with options \\"\$ac_cs_config\\"
 
@@ -14234,6 +14293,7 @@ pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
 enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
 SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
 ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
 host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
 host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
 host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
@@ -14314,7 +14374,6 @@ with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
 allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
 no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
 hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
-hardcode_libdir_flag_spec_ld='`$ECHO "$hardcode_libdir_flag_spec_ld" | $SED "$delay_single_quote_subst"`'
 hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
 hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
 hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
@@ -14373,6 +14432,7 @@ DLLTOOL \
 OBJDUMP \
 SHELL \
 ECHO \
+PATH_SEPARATOR \
 SED \
 GREP \
 EGREP \
@@ -14421,7 +14481,6 @@ with_gnu_ld \
 allow_undefined_flag \
 no_undefined_flag \
 hardcode_libdir_flag_spec \
-hardcode_libdir_flag_spec_ld \
 hardcode_libdir_separator \
 exclude_expsyms \
 include_expsyms \
@@ -15217,8 +15276,8 @@ $as_echo X"$file" |
 # NOTE: Changes made to this file will be lost: look at ltmain.sh.
 #
 #   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
-#                 Inc.
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
 #   Written by Gordon Matzigkeit, 1996
 #
 #   This file is part of GNU Libtool.
@@ -15281,6 +15340,9 @@ SHELL=$lt_SHELL
 # An echo program that protects backslashes.
 ECHO=$lt_ECHO
 
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
 # The host system.
 host_alias=$host_alias
 host=$host
@@ -15576,10 +15638,6 @@ no_undefined_flag=$lt_no_undefined_flag
 # This must work even if \$libdir does not exist
 hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
 
-# If ld is used when linking, flag to hardcode \$libdir into a binary
-# during linking.  This must work even if \$libdir does not exist.
-hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
-
 # Whether we need a single "-rpath" flag with a separated argument.
 hardcode_libdir_separator=$lt_hardcode_libdir_separator
 
diff --git a/configure.ac b/configure.ac
index e2c3774..12293b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@
 # Configure script for IJG libjpeg
 #
 
-AC_INIT([libjpeg], [8.3.0])
+AC_INIT([libjpeg], [8.4.0])
 
 # Directory where autotools helper scripts lives.
 AC_CONFIG_AUX_DIR([.])
@@ -21,7 +21,7 @@ AC_CANONICAL_TARGET
 
 # Initialize Automake
 # Don't require all the GNU mandated files
-AM_INIT_AUTOMAKE([-Wall -Werror ansi2knr no-dist foreign])
+AM_INIT_AUTOMAKE([-Wall -Werror -Wno-obsolete ansi2knr no-dist foreign])
 
 # Make --enable-silent-rules the default.
 # To get verbose build output you may configure
@@ -72,9 +72,9 @@ fi
 AM_CONDITIONAL(HAVE_LD_VERSION_SCRIPT, test "$have_ld_version_script" = "yes")
 
 # See if compiler supports prototypes.
-AC_MSG_CHECKING(for function prototypes)
-AC_CACHE_VAL(ijg_cv_have_prototypes,
-[AC_TRY_COMPILE([
+AC_MSG_CHECKING([for function prototypes])
+AC_CACHE_VAL([ijg_cv_have_prototypes],
+[AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
 int testfunction (int arg1, int * arg2); /* check prototypes */
 struct methods_struct {		/* check method-pointer declarations */
   int (*error_exit) (char *msgtext);
@@ -85,25 +85,29 @@ int testfunction (int arg1, int * arg2) /* check definitions */
 { return arg2[arg1]; }
 int test2function (void)	/* check void arg list */
 { return 0; }
-], [ ], ijg_cv_have_prototypes=yes, ijg_cv_have_prototypes=no)])
-AC_MSG_RESULT($ijg_cv_have_prototypes)
+]])],
+          [ijg_cv_have_prototypes=yes],
+          [ijg_cv_have_prototypes=no])])
+AC_MSG_RESULT([$ijg_cv_have_prototypes])
 if test $ijg_cv_have_prototypes = yes; then
   AC_DEFINE([HAVE_PROTOTYPES],[1],[Compiler supports function prototypes.])
 else
-  echo Your compiler does not seem to know about function prototypes.
-  echo Perhaps it needs a special switch to enable ANSI C mode.
-  echo If so, we recommend running configure like this:
-  echo "   ./configure  CC='cc -switch'"
-  echo where -switch is the proper switch.
+  AC_MSG_WARN([Your compiler does not seem to know about function prototypes.
+    Perhaps it needs a special switch to enable ANSI C mode.
+    If so, we recommend running configure like this:
+       ./configure  CC='cc -switch'
+    where -switch is the proper switch.])
 fi
 
 # Check header files
-AC_CHECK_HEADERS(stddef.h stdlib.h locale.h)
-AC_CHECK_HEADER(string.h, , AC_DEFINE([NEED_BSD_STRINGS],[1],[Compiler has <strings.h> rather than standard <string.h>.]))
+AC_CHECK_HEADERS([stddef.h stdlib.h locale.h])
+AC_CHECK_HEADER([string.h], [],
+ [AC_DEFINE([NEED_BSD_STRINGS], [1],
+            [Compiler has <strings.h> rather than standard <string.h>.])])
 
 # See whether type size_t is defined in any ANSI-standard places;
 # if not, perhaps it is defined in <sys/types.h>.
-AC_MSG_CHECKING(for size_t)
+AC_MSG_CHECKING([for size_t])
 AC_TRY_COMPILE([
 #ifdef HAVE_STDDEF_H
 #include <stddef.h>
@@ -118,33 +122,42 @@ AC_TRY_COMPILE([
 #include <string.h>
 #endif
 typedef size_t my_size_t;
-], [ my_size_t foovar; ], ijg_size_t_ok=yes,
-[ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"])
-AC_MSG_RESULT($ijg_size_t_ok)
+],
+      [ my_size_t foovar; ],
+      [ijg_size_t_ok=yes],
+      [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"])
+AC_MSG_RESULT([$ijg_size_t_ok])
 if test "$ijg_size_t_ok" != yes; then
-AC_CHECK_HEADER(sys/types.h, [AC_DEFINE([NEED_SYS_TYPES_H],[1],[Need to include <sys/types.h> in order to obtain size_t.])
-AC_EGREP_CPP(size_t, [#include <sys/types.h>],
-[ijg_size_t_ok="size_t is in sys/types.h"], ijg_size_t_ok=no)],
-ijg_size_t_ok=no)
-AC_MSG_RESULT($ijg_size_t_ok)
-if test "$ijg_size_t_ok" = no; then
-  echo Type size_t is not defined in any of the usual places.
-  echo Try putting '"typedef unsigned int size_t;"' in jconfig.h.
-fi
+  AC_CHECK_HEADER([sys/types.h],
+     [AC_DEFINE([NEED_SYS_TYPES_H], [1],
+                [Need to include <sys/types.h> in order to obtain size_t.])
+      AC_EGREP_CPP([size_t], [#include <sys/types.h>],
+                   [ijg_size_t_ok="size_t is in sys/types.h"],
+                   [ijg_size_t_ok=no])],
+     [ijg_size_t_ok=no])
+  AC_MSG_RESULT([$ijg_size_t_ok])
+  if test "$ijg_size_t_ok" = no; then
+    AC_MSG_WARN([Type size_t is not defined in any of the usual places.
+      Try putting '"typedef unsigned int size_t;"' in jconfig.h.])
+  fi
 fi
 
 # Check compiler characteristics
-AC_MSG_CHECKING(for type unsigned char)
-AC_TRY_COMPILE(, [ unsigned char un_char; ],
-[AC_MSG_RESULT(yes)
-AC_DEFINE([HAVE_UNSIGNED_CHAR],[1],[Compiler supports 'unsigned char'.])], AC_MSG_RESULT(no))
-dnl
-AC_MSG_CHECKING(for type unsigned short)
-AC_TRY_COMPILE(, [ unsigned short un_short; ],
-[AC_MSG_RESULT(yes)
-AC_DEFINE([HAVE_UNSIGNED_SHORT],[1],[Compiler supports 'unsigned short'.])], AC_MSG_RESULT(no))
-dnl
-AC_MSG_CHECKING(for type void)
+AC_MSG_CHECKING([for type unsigned char])
+AC_TRY_COMPILE([], [ unsigned char un_char; ],
+ [AC_MSG_RESULT(yes)
+  AC_DEFINE([HAVE_UNSIGNED_CHAR], [1],
+            [Compiler supports 'unsigned char'.])],
+ [AC_MSG_RESULT(no)])
+
+AC_MSG_CHECKING([for type unsigned short])
+AC_TRY_COMPILE([], [ unsigned short un_short; ],
+  [AC_MSG_RESULT(yes)
+   AC_DEFINE([HAVE_UNSIGNED_SHORT], [1],
+             [Compiler supports 'unsigned short'.])],
+  [AC_MSG_RESULT(no)])
+
+AC_MSG_CHECKING([for type void])
 AC_TRY_COMPILE([
 /* Caution: a C++ compiler will insist on valid prototypes */
 typedef void * void_ptr;	/* check void * */
@@ -166,39 +179,51 @@ void test3function (arg1, arg2)
   arg1 = (void *) locptr;
   (*arg2) (1, 2);		/* check call of fcn returning void */
 }
-], [ ], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
-AC_DEFINE([void],[char],[Define 'void' as 'char' for archaic compilers that don't understand it.])])
+], [ ],
+        [AC_MSG_RESULT(yes)],
+        [AC_MSG_RESULT(no)
+         AC_DEFINE([void], [char],
+                   [Define 'void' as 'char' for archaic compilers
+                    that don't understand it.])])
 AC_C_CONST
 
 # Check for non-broken inline under various spellings
-AC_MSG_CHECKING(for inline)
+AC_MSG_CHECKING([for inline])
 ijg_cv_inline=""
-AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
+AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; }
 int bar() { return foo();], ijg_cv_inline="__inline__",
-AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
+[AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
 int bar() { return foo();], ijg_cv_inline="__inline",
-AC_TRY_COMPILE(, [} inline int foo() { return 0; }
-int bar() { return foo();], ijg_cv_inline="inline")))
+[AC_TRY_COMPILE(, [} inline int foo() { return 0; }
+int bar() { return foo();], ijg_cv_inline="inline")])])
 AC_MSG_RESULT($ijg_cv_inline)
-AC_DEFINE_UNQUOTED([INLINE],[$ijg_cv_inline],[How to obtain function inlining.])
+AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline],
+                   [How to obtain function inlining.])
 
 # We cannot check for bogus warnings, but at least we can check for errors
-AC_MSG_CHECKING(for broken incomplete types)
-AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], ,
-AC_MSG_RESULT(ok),
-[AC_MSG_RESULT(broken)
-AC_DEFINE([INCOMPLETE_TYPES_BROKEN],[1],[Compiler does not support pointers to unspecified structures.])])
+AC_MSG_CHECKING([for broken incomplete types])
+AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ],
+               [],
+               [AC_MSG_RESULT(ok)],
+               [AC_MSG_RESULT(broken)
+                AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1],
+                          [Compiler does not support pointers to unspecified
+                           structures.])])
 
 # Test whether global names are unique to at least 15 chars
-AC_MSG_CHECKING(for short external names)
+AC_MSG_CHECKING([for short external names])
 AC_TRY_LINK([
 int possibly_duplicate_function () { return 0; }
 int possibly_dupli_function () { return 1; }
-], [ ], AC_MSG_RESULT(ok), [AC_MSG_RESULT(short)
-AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES],[1],[Linker requires that global names be unique in first 15 characters.])])
+], [],
+            [AC_MSG_RESULT(ok)],
+            [AC_MSG_RESULT(short)
+             AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1],
+                       [Linker requires that global names be unique in
+                        first 15 characters.])])
 
 # Run-time checks
-AC_MSG_CHECKING(to see if char is signed)
+AC_MSG_CHECKING([to see if char is signed])
 AC_TRY_RUN([
 #ifdef HAVE_PROTOTYPES
 int is_char_signed (int arg)
@@ -220,12 +245,14 @@ char signed_char_check = (char) (-67);
 int main() {
   exit(is_char_signed((int) signed_char_check));
 }], [AC_MSG_RESULT(no)
-AC_DEFINE([CHAR_IS_UNSIGNED],[1],[Characters are unsigned])], AC_MSG_RESULT(yes),
-[echo Assuming that char is signed on target machine.
-echo If it is unsigned, this will be a little bit inefficient.
+     AC_DEFINE([CHAR_IS_UNSIGNED], [1],
+               [Characters are unsigned])],
+               [AC_MSG_RESULT(yes)],
+[AC_MSG_WARN([Assuming that char is signed on target machine.
+    If it is unsigned, this will be a little bit inefficient.])
 ])
-dnl
-AC_MSG_CHECKING(to see if right shift is signed)
+
+AC_MSG_CHECKING([to see if right shift is signed])
 AC_TRY_RUN([
 #ifdef HAVE_PROTOTYPES
 int is_shifting_signed (long arg)
@@ -252,20 +279,26 @@ int is_shifting_signed (arg)
 }
 int main() {
   exit(is_shifting_signed(-0x7F7E80B1L));
-}], [AC_MSG_RESULT(no)
-AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED],[1],[Broken compiler shifts signed values as an unsigned shift.])], AC_MSG_RESULT(yes),
-AC_MSG_RESULT(Assuming that right shift is signed on target machine.))
-dnl
-AC_MSG_CHECKING(to see if fopen accepts b spec)
+}],
+      [AC_MSG_RESULT(no)
+       AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], [1],
+                 [Broken compiler shifts signed values as an unsigned shift.])],
+       [AC_MSG_RESULT(yes)],
+       [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
+
+AC_MSG_CHECKING([to see if fopen accepts b spec])
 AC_TRY_RUN([
 #include <stdio.h>
 int main() {
   if (fopen("conftestdata", "wb") != NULL)
     exit(0);
   exit(1);
-}], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
-AC_DEFINE([DONT_USE_B_MODE],[1],[Don't open files in binary mode.])],
-AC_MSG_RESULT(Assuming that it does.))
+}],
+          [AC_MSG_RESULT(yes)],
+          [AC_MSG_RESULT(no)
+           AC_DEFINE([DONT_USE_B_MODE], [1],
+                     [Don't open files in binary mode.])],
+          [AC_MSG_RESULT(Assuming that it does.)])
 
 # Configure libtool
 AC_LIBTOOL_WIN32_DLL
@@ -275,9 +308,9 @@ AC_PROG_LIBTOOL
 # If no "-enable-maxmem", use jmemnobs
 MEMORYMGR='jmemnobs'
 MAXMEM="no"
-AC_ARG_ENABLE(maxmem,
+AC_ARG_ENABLE([maxmem],
 [  --enable-maxmem[=N]     enable use of temp files, set max mem usage to N MB],
-MAXMEM="$enableval")
+[MAXMEM="$enableval"])
 dnl [# support --with-maxmem for backwards compatibility with IJG V5.]
 dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval")
 if test "x$MAXMEM" = xyes; then
@@ -288,31 +321,36 @@ if test "x$MAXMEM" != xno; then
     AC_MSG_ERROR(non-numeric argument to --enable-maxmem)
   fi
   DEFAULTMAXMEM=`expr $MAXMEM \* 1048576`
-AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}], [Maximum data space library will allocate.])
-AC_MSG_CHECKING([for 'tmpfile()'])
-AC_TRY_LINK([#include <stdio.h>], [ FILE * tfile = tmpfile(); ],
-[AC_MSG_RESULT(yes)
-MEMORYMGR='jmemansi'],
-[AC_MSG_RESULT(no)
-dnl if tmpfile is not present, must use jmemname.
-MEMORYMGR='jmemname'
+  AC_DEFINE_UNQUOTED([DEFAULT_MAX_MEM], [${DEFAULTMAXMEM}],
+                     [Maximum data space library will allocate.])
+  AC_MSG_CHECKING([for 'tmpfile()'])
+  AC_TRY_LINK([#include <stdio.h>], [ FILE * tfile = tmpfile(); ],
+    [AC_MSG_RESULT(yes)
+    MEMORYMGR='jmemansi'],
+    [AC_MSG_RESULT(no)
+    dnl if tmpfile is not present, must use jmemname.
+    MEMORYMGR='jmemname'
 
-# Test for the need to remove temporary files using a signal handler (for cjpeg/djpeg)
-AC_DEFINE([NEED_SIGNAL_CATCHER],[1],[Need signal handler to clean up temporary files.])
-AC_MSG_CHECKING([for 'mktemp()'])
-AC_TRY_LINK(, [ char fname[80]; mktemp(fname); ], AC_MSG_RESULT(yes),
-[AC_MSG_RESULT(no)
-AC_DEFINE([NO_MKTEMP],[1],[The mktemp() function is not available.])])])
+    # Test for the need to remove temporary files using a signal handler
+    # (for cjpeg/djpeg)
+    AC_DEFINE([NEED_SIGNAL_CATCHER], [1],
+              [Need signal handler to clean up temporary files.])
+    AC_MSG_CHECKING([for 'mktemp()'])
+    AC_TRY_LINK([], [ char fname[80]; mktemp(fname); ],
+                [AC_MSG_RESULT(yes)],
+                [AC_MSG_RESULT(no)
+                 AC_DEFINE([NO_MKTEMP], [1],
+                           [The mktemp() function is not available.])])])
 fi
-AC_SUBST(MEMORYMGR)
+AC_SUBST([MEMORYMGR])
 
 # Extract the library version IDs from jpeglib.h.
 AC_MSG_CHECKING([libjpeg version number])
-[JPEG_LIB_VERSION_MAJOR=`sed -e '/^#define JPEG_LIB_VERSION_MAJOR/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`]
-[JPEG_LIB_VERSION_MINOR=`sed -e '/^#define JPEG_LIB_VERSION_MINOR/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`]
-[JPEG_LIB_VERSION="`expr $JPEG_LIB_VERSION_MAJOR + $JPEG_LIB_VERSION_MINOR`:0:$JPEG_LIB_VERSION_MINOR"]
+[major=`sed -ne 's/^#define JPEG_LIB_VERSION_MAJOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`
+minor=`sed -ne 's/^#define JPEG_LIB_VERSION_MINOR *\([0-9][0-9]*\).*$/\1/p' $srcdir/jpeglib.h`]
+AC_SUBST([JPEG_LIB_VERSION],
+         [`expr $major + $minor`:0:$minor])
 AC_MSG_RESULT([$JPEG_LIB_VERSION])
-AC_SUBST([JPEG_LIB_VERSION])
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
diff --git a/depcomp b/depcomp
index df8eea7..bd0ac08 100755
--- a/depcomp
+++ b/depcomp
@@ -1,10 +1,10 @@
 #! /bin/sh
 # depcomp - compile a program generating dependencies as side-effects
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-12-04.11; # UTC
 
-# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
-# Software Foundation, Inc.
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
+# 2011 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -44,7 +44,7 @@ Environment variables:
   object      Object file output by `PROGRAMS ARGS'.
   DEPDIR      directory where to store dependencies.
   depfile     Dependency file to output.
-  tmpdepfile  Temporary file to use when outputing dependencies.
+  tmpdepfile  Temporary file to use when outputting dependencies.
   libtool     Whether libtool is used (yes/no).
 
 Report bugs to <bug-automake@gnu.org>.
@@ -90,10 +90,18 @@ if test "$depmode" = msvcmsys; then
    # This is just like msvisualcpp but w/o cygpath translation.
    # Just convert the backslash-escaped backslashes to single forward
    # slashes to satisfy depend.m4
-   cygpath_u="sed s,\\\\\\\\,/,g"
+   cygpath_u='sed s,\\\\,/,g'
    depmode=msvisualcpp
 fi
 
+if test "$depmode" = msvc7msys; then
+   # This is just like msvc7 but w/o cygpath translation.
+   # Just convert the backslash-escaped backslashes to single forward
+   # slashes to satisfy depend.m4
+   cygpath_u='sed s,\\\\,/,g'
+   depmode=msvc7
+fi
+
 case "$depmode" in
 gcc3)
 ## gcc 3 implements dependency tracking that does exactly what
@@ -158,10 +166,12 @@ gcc)
 ' < "$tmpdepfile" |
 ## Some versions of gcc put a space before the `:'.  On the theory
 ## that the space means something, we add a space to the output as
-## well.
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
 ## Some versions of the HPUX 10.20 sed can't process this invocation
 ## correctly.  Breaking it into two sed invocations is a workaround.
-    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+    sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+      | sed -e 's/$/ :/' >> "$depfile"
   rm -f "$tmpdepfile"
   ;;
 
@@ -405,6 +415,52 @@ tru64)
    rm -f "$tmpdepfile"
    ;;
 
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test "$stat" = 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/	\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/	/
+  G
+  p
+}' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
 #nosideeffect)
   # This comment above is used by automake to tell side-effect
   # dependency tracking mechanisms from slower ones.
@@ -503,7 +559,9 @@ makedepend)
   touch "$tmpdepfile"
   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
   rm -f "$depfile"
-  cat < "$tmpdepfile" > "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
   sed '1,2d' "$tmpdepfile" | tr ' ' '
 ' | \
 ## Some versions of the HPUX 10.20 sed can't process this invocation
diff --git a/install-sh b/install-sh
index 6781b98..a9244eb 100755
--- a/install-sh
+++ b/install-sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # install - install a program, script, or datafile
 
-scriptversion=2009-04-28.21; # UTC
+scriptversion=2011-01-19.21; # UTC
 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
@@ -156,6 +156,10 @@ while test $# -ne 0; do
     -s) stripcmd=$stripprog;;
 
     -t) dst_arg=$2
+	# Protect names problematic for `test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
 	shift;;
 
     -T) no_target_directory=true;;
@@ -186,6 +190,10 @@ if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
     fi
     shift # arg
     dst_arg=$arg
+    # Protect names problematic for `test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
   done
 fi
 
@@ -200,7 +208,11 @@ if test $# -eq 0; then
 fi
 
 if test -z "$dir_arg"; then
-  trap '(exit $?); exit' 1 2 13 15
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
 
   # Set umask so as not to create temps with too-generous modes.
   # However, 'strip' requires both read and write access to temps.
@@ -228,9 +240,9 @@ fi
 
 for src
 do
-  # Protect names starting with `-'.
+  # Protect names problematic for `test' and other utilities.
   case $src in
-    -*) src=./$src;;
+    -* | [=\(\)!]) src=./$src;;
   esac
 
   if test -n "$dir_arg"; then
@@ -252,12 +264,7 @@ do
       echo "$0: no destination specified." >&2
       exit 1
     fi
-
     dst=$dst_arg
-    # Protect names starting with `-'.
-    case $dst in
-      -*) dst=./$dst;;
-    esac
 
     # If destination is a directory, append the input filename; won't work
     # if double slashes aren't ignored.
@@ -385,7 +392,7 @@ do
 
       case $dstdir in
 	/*) prefix='/';;
-	-*) prefix='./';;
+	[-=\(\)!]*) prefix='./';;
 	*)  prefix='';;
       esac
 
@@ -403,7 +410,7 @@ do
 
       for d
       do
-	test -z "$d" && continue
+	test X"$d" = X && continue
 
 	prefix=$prefix$d
 	if test -d "$prefix"; then
diff --git a/install.txt b/install.txt
index 2ee86ad..04bed91 100644
--- a/install.txt
+++ b/install.txt
@@ -1,6 +1,6 @@
 INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software
 
-Copyright (C) 1991-2010, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -321,9 +321,9 @@ several forms:
 	testimg.jpg	The output of cjpeg testimg.ppm
 	testprog.jpg	Progressive-mode equivalent of testorig.jpg.
 	testimgp.jpg	The output of cjpeg -progressive -optimize testimg.ppm
-(The first- and second-generation .jpg files aren't identical since JPEG is
-lossy.)  If you can generate duplicates of the testimg* files then you
-probably have working programs.
+(The first- and second-generation .jpg files aren't identical since the
+default compression parameters are lossy.)  If you can generate duplicates
+of the testimg* files then you probably have working programs.
 
 With most of the makefiles, "make test" will perform the necessary
 comparisons.
@@ -534,17 +534,17 @@ In general, it's worth trying the maximum optimization level of your compiler,
 and experimenting with any optional optimizations such as loop unrolling.
 (Unfortunately, far too many compilers have optimizer bugs ... be prepared to
 back off if the code fails self-test.)  If you do any experimentation along
-these lines, please report the optimal settings to jpeg-info@uc.ag so we
-can mention them in future releases.  Be sure to specify your machine
-and compiler version.
+these lines, please report the optimal settings to jpeg-info@jpegclub.org so
+we can mention them in future releases.  Be sure to specify your machine and
+compiler version.
 
 
 HINTS FOR SPECIFIC SYSTEMS
 ==========================
 
 We welcome reports on changes needed for systems not mentioned here.  Submit
-'em to jpeg-info@uc.ag.  Also, if configure or ckconfig.c is wrong about how
-to configure the JPEG software for your system, please let us know.
+'em to jpeg-info@jpegclub.org.  Also, if configure or ckconfig.c is wrong
+about how to configure the JPEG software for your system, please let us know.
 
 
 Acorn RISC OS:
diff --git a/jaricom.c b/jaricom.c
index f43e2ea..6900688 100644
--- a/jaricom.c
+++ b/jaricom.c
@@ -1,16 +1,16 @@
 /*
  * jaricom.c
  *
- * Developed 1997-2009 by Guido Vollbeding.
+ * Developed 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file contains probability estimation tables for common use in
  * arithmetic entropy encoding and decoding routines.
  *
- * This data represents Table D.2 in the JPEG spec (ISO/IEC IS 10918-1
- * and CCITT Recommendation ITU-T T.81) and Table 24 in the JBIG spec
- * (ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82).
+ * This data represents Table D.3 in the JPEG spec (D.2 in the draft),
+ * ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81, and Table 24
+ * in the JBIG spec, ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82.
  */
 
 #define JPEG_INTERNALS
@@ -147,7 +147,7 @@ const INT32 jpeg_aritab[113+1] = {
   V( 112, 0x59eb, 112, 111, 1 ),
 /*
  * This last entry is used for fixed probability estimate of 0.5
- * as recommended in Section 10.3 Table 5 of ITU-T Rec. T.851.
+ * as suggested in Section 10.3 Table 5 of ITU-T Rec. T.851.
  */
   V( 113, 0x5a1d, 113, 113, 0 )
 };
diff --git a/jcarith.c b/jcarith.c
index 0b7ea55..033f670 100644
--- a/jcarith.c
+++ b/jcarith.c
@@ -1,7 +1,7 @@
 /*
  * jcarith.c
  *
- * Developed 1997-2009 by Guido Vollbeding.
+ * Developed 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -223,7 +223,7 @@ arith_encode (j_compress_ptr cinfo, unsigned char *st, int val)
   register INT32 qe, temp;
   register int sv;
 
-  /* Fetch values from our compact representation of Table D.2:
+  /* Fetch values from our compact representation of Table D.3(D.2):
    * Qe values and probability estimation state machine
    */
   sv = *st;
@@ -765,18 +765,21 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
 
     /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */
 
+    if ((ke = cinfo->lim_Se) == 0) continue;
     tbl = compptr->ac_tbl_no;
 
     /* Establish EOB (end-of-block) index */
-    for (ke = cinfo->lim_Se; ke > 0; ke--)
+    do {
       if ((*block)[natural_order[ke]]) break;
+    } while (--ke);
 
     /* Figure F.5: Encode_AC_Coefficients */
-    for (k = 1; k <= ke; k++) {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    for (k = 0; k < ke;) {
+      st = entropy->ac_stats[tbl] + 3 * k;
       arith_encode(cinfo, st, 0);	/* EOB decision */
-      while ((v = (*block)[natural_order[k]]) == 0) {
-	arith_encode(cinfo, st + 1, 0); st += 3; k++;
+      while ((v = (*block)[natural_order[++k]]) == 0) {
+	arith_encode(cinfo, st + 1, 0);
+	st += 3;
       }
       arith_encode(cinfo, st + 1, 1);
       /* Figure F.6: Encoding nonzero value v */
@@ -812,9 +815,9 @@ encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
       while (m >>= 1)
 	arith_encode(cinfo, st, (m & v) ? 1 : 0);
     }
-    /* Encode EOB decision only if k <= cinfo->lim_Se */
-    if (k <= cinfo->lim_Se) {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    /* Encode EOB decision only if k < cinfo->lim_Se */
+    if (k < cinfo->lim_Se) {
+      st = entropy->ac_stats[tbl] + 3 * k;
       arith_encode(cinfo, st, 1);
     }
   }
diff --git a/jccoefct.c b/jccoefct.c
index d775313..924a703 100644
--- a/jccoefct.c
+++ b/jccoefct.c
@@ -2,6 +2,7 @@
  * jccoefct.c
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
+ * Modified 2003-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -183,16 +184,16 @@ compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 			    ypos, xpos, (JDIMENSION) blockcnt);
 	    if (blockcnt < compptr->MCU_width) {
 	      /* Create some dummy blocks at the right edge of the image. */
-	      jzero_far((void FAR *) coef->MCU_buffer[blkn + blockcnt],
-			(compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
+	      FMEMZERO((void FAR *) coef->MCU_buffer[blkn + blockcnt],
+		       (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
 	      for (bi = blockcnt; bi < compptr->MCU_width; bi++) {
 		coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0];
 	      }
 	    }
 	  } else {
 	    /* Create a row of dummy blocks at the bottom of the image. */
-	    jzero_far((void FAR *) coef->MCU_buffer[blkn],
-		      compptr->MCU_width * SIZEOF(JBLOCK));
+	    FMEMZERO((void FAR *) coef->MCU_buffer[blkn],
+		     compptr->MCU_width * SIZEOF(JBLOCK));
 	    for (bi = 0; bi < compptr->MCU_width; bi++) {
 	      coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0];
 	    }
@@ -290,7 +291,7 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
       if (ndummy > 0) {
 	/* Create dummy blocks at the right edge of the image. */
 	thisblockrow += blocks_across; /* => first dummy block */
-	jzero_far((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
+	FMEMZERO((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
 	lastDC = thisblockrow[-1][0];
 	for (bi = 0; bi < ndummy; bi++) {
 	  thisblockrow[bi][0] = lastDC;
@@ -309,8 +310,8 @@ compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
 	   block_row++) {
 	thisblockrow = buffer[block_row];
 	lastblockrow = buffer[block_row-1];
-	jzero_far((void FAR *) thisblockrow,
-		  (size_t) (blocks_across * SIZEOF(JBLOCK)));
+	FMEMZERO((void FAR *) thisblockrow,
+		 (size_t) (blocks_across * SIZEOF(JBLOCK)));
 	for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) {
 	  lastDC = lastblockrow[h_samp_factor-1][0];
 	  for (bi = 0; bi < h_samp_factor; bi++) {
diff --git a/jccolor.c b/jccolor.c
index 0a8a4b5..3e2d0e9 100644
--- a/jccolor.c
+++ b/jccolor.c
@@ -2,6 +2,7 @@
  * jccolor.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -299,6 +300,39 @@ grayscale_convert (j_compress_ptr cinfo,
 }
 
 
+/*
+ * Convert some rows of samples to the JPEG colorspace.
+ * No colorspace conversion, but change from interleaved
+ * to separate-planes representation.
+ */
+
+METHODDEF(void)
+rgb_convert (j_compress_ptr cinfo,
+	     JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+	     JDIMENSION output_row, int num_rows)
+{
+  register JSAMPROW inptr;
+  register JSAMPROW outptr0, outptr1, outptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->image_width;
+
+  while (--num_rows >= 0) {
+    inptr = *input_buf++;
+    outptr0 = output_buf[0][output_row];
+    outptr1 = output_buf[1][output_row];
+    outptr2 = output_buf[2][output_row];
+    output_row++;
+    for (col = 0; col < num_cols; col++) {
+      /* We can dispense with GETJSAMPLE() here */
+      outptr0[col] = inptr[RGB_RED];
+      outptr1[col] = inptr[RGB_GREEN];
+      outptr2[col] = inptr[RGB_BLUE];
+      inptr += RGB_PIXELSIZE;
+    }
+  }
+}
+
+
 /*
  * Convert some rows of samples to the JPEG colorspace.
  * This version handles multi-component colorspaces without conversion.
@@ -368,11 +402,9 @@ jinit_color_converter (j_compress_ptr cinfo)
     break;
 
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
     if (cinfo->input_components != RGB_PIXELSIZE)
       ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
     break;
-#endif /* else share code with YCbCr */
 
   case JCS_YCbCr:
     if (cinfo->input_components != 3)
@@ -396,22 +428,21 @@ jinit_color_converter (j_compress_ptr cinfo)
   case JCS_GRAYSCALE:
     if (cinfo->num_components != 1)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_GRAYSCALE)
+    if (cinfo->in_color_space == JCS_GRAYSCALE ||
+	cinfo->in_color_space == JCS_YCbCr)
       cconvert->pub.color_convert = grayscale_convert;
     else if (cinfo->in_color_space == JCS_RGB) {
       cconvert->pub.start_pass = rgb_ycc_start;
       cconvert->pub.color_convert = rgb_gray_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
-      cconvert->pub.color_convert = grayscale_convert;
-    else
+    } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
 
   case JCS_RGB:
     if (cinfo->num_components != 3)
       ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_RGB && RGB_PIXELSIZE == 3)
-      cconvert->pub.color_convert = null_convert;
+    if (cinfo->in_color_space == JCS_RGB)
+      cconvert->pub.color_convert = rgb_convert;
     else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
diff --git a/jconfig.mc6 b/jconfig.mc6
index ad5651b..6b05e81 100644
--- a/jconfig.mc6
+++ b/jconfig.mc6
@@ -30,7 +30,7 @@
 #define SHORTxLCONST_32		/* enable compiler-specific DCT optimization */
 /* Note: the above define is known to improve the code with Microsoft C 6.00A.
  * I do not know whether it is good for later compiler versions.
- * Please report any info on this point to jpeg-info@uc.ag.
+ * Please report any info on this point to jpeg-info@jpegclub.org.
  */
 
 #endif /* JPEG_INTERNALS */
diff --git a/jctrans.c b/jctrans.c
index cee6b0f..f7d7b81 100644
--- a/jctrans.c
+++ b/jctrans.c
@@ -2,7 +2,7 @@
  * jctrans.c
  *
  * Copyright (C) 1995-1998, Thomas G. Lane.
- * Modified 2000-2009 by Guido Vollbeding.
+ * Modified 2000-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -375,7 +375,7 @@ transencode_coef_controller (j_compress_ptr cinfo,
   buffer = (JBLOCKROW)
     (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
 				C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-  jzero_far((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
+  FMEMZERO((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
   for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) {
     coef->dummy_buffer[i] = buffer + i;
   }
diff --git a/jdarith.c b/jdarith.c
index c858b24..092f8af 100644
--- a/jdarith.c
+++ b/jdarith.c
@@ -1,7 +1,7 @@
 /*
  * jdarith.c
  *
- * Developed 1997-2009 by Guido Vollbeding.
+ * Developed 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -145,7 +145,7 @@ arith_decode (j_decompress_ptr cinfo, unsigned char *st)
     e->a <<= 1;
   }
 
-  /* Fetch values from our compact representation of Table D.2:
+  /* Fetch values from our compact representation of Table D.3(D.2):
    * Qe values and probability estimation state machine
    */
   sv = *st;
@@ -575,15 +575,19 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 
     /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */
 
+    if (cinfo->lim_Se == 0) continue;
     tbl = compptr->ac_tbl_no;
+    k = 0;
 
     /* Figure F.20: Decode_AC_coefficients */
-    for (k = 1; k <= cinfo->lim_Se; k++) {
-      st = entropy->ac_stats[tbl] + 3 * (k - 1);
+    do {
+      st = entropy->ac_stats[tbl] + 3 * k;
       if (arith_decode(cinfo, st)) break;	/* EOB flag */
-      while (arith_decode(cinfo, st + 1) == 0) {
-	st += 3; k++;
-	if (k > cinfo->lim_Se) {
+      for (;;) {
+	k++;
+	if (arith_decode(cinfo, st + 1)) break;
+	st += 3;
+	if (k >= cinfo->lim_Se) {
 	  WARNMS(cinfo, JWRN_ARITH_BAD_CODE);
 	  entropy->ct = -1;			/* spectral overflow */
 	  return TRUE;
@@ -616,7 +620,7 @@ decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
 	if (arith_decode(cinfo, st)) v |= m;
       v += 1; if (sign) v = -v;
       (*block)[natural_order[k]] = (JCOEF) v;
-    }
+    } while (k < cinfo->lim_Se);
   }
 
   return TRUE;
diff --git a/jdatadst.c b/jdatadst.c
index 472d5f3..6981fb7 100644
--- a/jdatadst.c
+++ b/jdatadst.c
@@ -2,7 +2,7 @@
  * jdatadst.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
- * Modified 2009 by Guido Vollbeding.
+ * Modified 2009-2012 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -128,7 +128,7 @@ empty_mem_output_buffer (j_compress_ptr cinfo)
 
   /* Try to allocate new buffer with double size */
   nextsize = dest->bufsize * 2;
-  nextbuffer = malloc(nextsize);
+  nextbuffer = (JOCTET *) malloc(nextsize);
 
   if (nextbuffer == NULL)
     ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
@@ -256,7 +256,7 @@ jpeg_mem_dest (j_compress_ptr cinfo,
 
   if (*outbuffer == NULL || *outsize == 0) {
     /* Allocate initial buffer */
-    dest->newbuffer = *outbuffer = malloc(OUTPUT_BUF_SIZE);
+    dest->newbuffer = *outbuffer = (unsigned char *) malloc(OUTPUT_BUF_SIZE);
     if (dest->newbuffer == NULL)
       ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10);
     *outsize = OUTPUT_BUF_SIZE;
diff --git a/jdatasrc.c b/jdatasrc.c
index c8fe3da..7be59a8 100644
--- a/jdatasrc.c
+++ b/jdatasrc.c
@@ -2,7 +2,7 @@
  * jdatasrc.c
  *
  * Copyright (C) 1994-1996, Thomas G. Lane.
- * Modified 2009-2010 by Guido Vollbeding.
+ * Modified 2009-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -121,16 +121,17 @@ fill_input_buffer (j_decompress_ptr cinfo)
 METHODDEF(boolean)
 fill_mem_input_buffer (j_decompress_ptr cinfo)
 {
-  static JOCTET mybuffer[4];
+  static const JOCTET mybuffer[4] = {
+    (JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0
+  };
 
   /* The whole JPEG data is expected to reside in the supplied memory
    * buffer, so any request for more data beyond the given buffer size
    * is treated as an error.
    */
   WARNMS(cinfo, JWRN_JPEG_EOF);
+
   /* Insert a fake EOI marker */
-  mybuffer[0] = (JOCTET) 0xFF;
-  mybuffer[1] = (JOCTET) JPEG_EOI;
 
   cinfo->src->next_input_byte = mybuffer;
   cinfo->src->bytes_in_buffer = 2;
diff --git a/jdcoefct.c b/jdcoefct.c
index 462e92c..ed02fc3 100644
--- a/jdcoefct.c
+++ b/jdcoefct.c
@@ -2,6 +2,7 @@
  * jdcoefct.c
  *
  * Copyright (C) 1994-1997, Thomas G. Lane.
+ * Modified 2002-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -162,8 +163,9 @@ decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
     for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col;
 	 MCU_col_num++) {
       /* Try to fetch an MCU.  Entropy decoder expects buffer to be zeroed. */
-      jzero_far((void FAR *) coef->MCU_buffer[0],
-		(size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK)));
+      if (cinfo->lim_Se)	/* can bypass in DC only case */
+	FMEMZERO((void FAR *) coef->MCU_buffer[0],
+		 (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK)));
       if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) {
 	/* Suspension forced; update state counters and exit */
 	coef->MCU_vert_offset = yoffset;
@@ -729,6 +731,9 @@ jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
     for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) {
       coef->MCU_buffer[i] = buffer + i;
     }
+    if (cinfo->lim_Se == 0)	/* DC only case: want to bypass later */
+      FMEMZERO((void FAR *) buffer,
+	       (size_t) (D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)));
     coef->pub.consume_data = dummy_consume_data;
     coef->pub.decompress_data = decompress_onepass;
     coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */
diff --git a/jdcolor.c b/jdcolor.c
index 6c04dfe..83e4d06 100644
--- a/jdcolor.c
+++ b/jdcolor.c
@@ -2,6 +2,7 @@
  * jdcolor.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -23,20 +24,28 @@ typedef struct {
   int * Cb_b_tab;		/* => table for Cb to B conversion */
   INT32 * Cr_g_tab;		/* => table for Cr to G conversion */
   INT32 * Cb_g_tab;		/* => table for Cb to G conversion */
+
+  /* Private state for RGB->Y conversion */
+  INT32 * rgb_y_tab;		/* => table for RGB to Y conversion */
 } my_color_deconverter;
 
 typedef my_color_deconverter * my_cconvert_ptr;
 
 
 /**************** YCbCr -> RGB conversion: most common case **************/
+/****************   RGB -> Y   conversion: less common case **************/
 
 /*
  * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
  * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
  * The conversion equations to be implemented are therefore
+ *
  *	R = Y                + 1.40200 * Cr
  *	G = Y - 0.34414 * Cb - 0.71414 * Cr
  *	B = Y + 1.77200 * Cb
+ *
+ *	Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
+ *
  * where Cb and Cr represent the incoming values less CENTERJSAMPLE.
  * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
  *
@@ -61,6 +70,18 @@ typedef my_color_deconverter * my_cconvert_ptr;
 #define ONE_HALF	((INT32) 1 << (SCALEBITS-1))
 #define FIX(x)		((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
 
+/* We allocate one big table for RGB->Y conversion and divide it up into
+ * three parts, instead of doing three alloc_small requests.  This lets us
+ * use a single table base address, which can be held in a register in the
+ * inner loops on many machines (more than can hold all three addresses,
+ * anyway).
+ */
+
+#define R_Y_OFF		0			/* offset to R => Y section */
+#define G_Y_OFF		(1*(MAXJSAMPLE+1))	/* offset to G => Y section */
+#define B_Y_OFF		(2*(MAXJSAMPLE+1))	/* etc. */
+#define TABLE_SIZE	(3*(MAXJSAMPLE+1))
+
 
 /*
  * Initialize tables for YCC->RGB colorspace conversion.
@@ -160,6 +181,98 @@ ycc_rgb_convert (j_decompress_ptr cinfo,
 /**************** Cases other than YCbCr -> RGB **************/
 
 
+/*
+ * Initialize for RGB->grayscale colorspace conversion.
+ */
+
+LOCAL(void)
+build_rgb_y_table (j_decompress_ptr cinfo)
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  INT32 * rgb_y_tab;
+  INT32 i;
+
+  /* Allocate and fill in the conversion tables. */
+  cconvert->rgb_y_tab = rgb_y_tab = (INT32 *)
+    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
+				(TABLE_SIZE * SIZEOF(INT32)));
+
+  for (i = 0; i <= MAXJSAMPLE; i++) {
+    rgb_y_tab[i+R_Y_OFF] = FIX(0.29900) * i;
+    rgb_y_tab[i+G_Y_OFF] = FIX(0.58700) * i;
+    rgb_y_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF;
+  }
+}
+
+
+/*
+ * Convert RGB to grayscale.
+ */
+
+METHODDEF(void)
+rgb_gray_convert (j_decompress_ptr cinfo,
+		  JSAMPIMAGE input_buf, JDIMENSION input_row,
+		  JSAMPARRAY output_buf, int num_rows)
+{
+  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
+  register int r, g, b;
+  register INT32 * ctab = cconvert->rgb_y_tab;
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      r = GETJSAMPLE(inptr0[col]);
+      g = GETJSAMPLE(inptr1[col]);
+      b = GETJSAMPLE(inptr2[col]);
+      /* Y */
+      outptr[col] = (JSAMPLE)
+		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
+		 >> SCALEBITS);
+    }
+  }
+}
+
+
+/*
+ * No colorspace change, but conversion from separate-planes
+ * to interleaved representation.
+ */
+
+METHODDEF(void)
+rgb_convert (j_decompress_ptr cinfo,
+	     JSAMPIMAGE input_buf, JDIMENSION input_row,
+	     JSAMPARRAY output_buf, int num_rows)
+{
+  register JSAMPROW outptr;
+  register JSAMPROW inptr0, inptr1, inptr2;
+  register JDIMENSION col;
+  JDIMENSION num_cols = cinfo->output_width;
+
+  while (--num_rows >= 0) {
+    inptr0 = input_buf[0][input_row];
+    inptr1 = input_buf[1][input_row];
+    inptr2 = input_buf[2][input_row];
+    input_row++;
+    outptr = *output_buf++;
+    for (col = 0; col < num_cols; col++) {
+      /* We can dispense with GETJSAMPLE() here */
+      outptr[RGB_RED]   = inptr0[col];
+      outptr[RGB_GREEN] = inptr1[col];
+      outptr[RGB_BLUE]  = inptr2[col];
+      outptr += RGB_PIXELSIZE;
+    }
+  }
+}
+
+
 /*
  * Color conversion for no colorspace change: just copy the data,
  * converting from separate-planes to interleaved representation.
@@ -351,6 +464,9 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
       /* For color->grayscale conversion, only the Y (0) component is needed */
       for (ci = 1; ci < cinfo->num_components; ci++)
 	cinfo->comp_info[ci].component_needed = FALSE;
+    } else if (cinfo->jpeg_color_space == JCS_RGB) {
+      cconvert->pub.color_convert = rgb_gray_convert;
+      build_rgb_y_table(cinfo);
     } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
@@ -362,8 +478,8 @@ jinit_color_deconverter (j_decompress_ptr cinfo)
       build_ycc_rgb_table(cinfo);
     } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
       cconvert->pub.color_convert = gray_rgb_convert;
-    } else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) {
-      cconvert->pub.color_convert = null_convert;
+    } else if (cinfo->jpeg_color_space == JCS_RGB) {
+      cconvert->pub.color_convert = rgb_convert;
     } else
       ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
     break;
diff --git a/jdmaster.c b/jdmaster.c
index 8c1146e..fef72a2 100644
--- a/jdmaster.c
+++ b/jdmaster.c
@@ -2,7 +2,7 @@
  * jdmaster.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 2002-2009 by Guido Vollbeding.
+ * Modified 2002-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -158,10 +158,8 @@ jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
     cinfo->out_color_components = 1;
     break;
   case JCS_RGB:
-#if RGB_PIXELSIZE != 3
     cinfo->out_color_components = RGB_PIXELSIZE;
     break;
-#endif /* else share code with YCbCr */
   case JCS_YCbCr:
     cinfo->out_color_components = 3;
     break;
diff --git a/jmemmgr.c b/jmemmgr.c
index d801b32..f0e83fb 100644
--- a/jmemmgr.c
+++ b/jmemmgr.c
@@ -2,6 +2,7 @@
  * jmemmgr.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -821,7 +822,7 @@ access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr,
       undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
       end_row -= ptr->cur_start_row;
       while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
+	FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
 	undef_row++;
       }
     } else {
@@ -906,7 +907,7 @@ access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr,
       undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
       end_row -= ptr->cur_start_row;
       while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
+	FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
 	undef_row++;
       }
     } else {
diff --git a/jmorecfg.h b/jmorecfg.h
index 928d052..6c085c3 100644
--- a/jmorecfg.h
+++ b/jmorecfg.h
@@ -2,7 +2,7 @@
  * jmorecfg.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 1997-2009 by Guido Vollbeding.
+ * Modified 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -312,9 +312,7 @@ typedef int boolean;
  * the offsets will also change the order in which colormap data is organized.
  * RESTRICTIONS:
  * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
- * 2. These macros only affect RGB<=>YCbCr color conversion, so they are not
- *    useful if you are using JPEG color spaces other than YCbCr or grayscale.
- * 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
+ * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
  *    is not 3 (they don't understand about dummy color components!).  So you
  *    can't use color quantization if you change that value.
  */
diff --git a/jpegint.h b/jpegint.h
index 0c27a4e..c0d5c14 100644
--- a/jpegint.h
+++ b/jpegint.h
@@ -2,7 +2,7 @@
  * jpegint.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 1997-2009 by Guido Vollbeding.
+ * Modified 1997-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -321,21 +321,41 @@ struct jpeg_color_quantizer {
 #define jinit_memory_mgr	jIMemMgr
 #define jdiv_round_up		jDivRound
 #define jround_up		jRound
+#define jzero_far		jZeroFar
 #define jcopy_sample_rows	jCopySamples
 #define jcopy_block_row		jCopyBlocks
-#define jzero_far		jZeroFar
 #define jpeg_zigzag_order	jZIGTable
 #define jpeg_natural_order	jZAGTable
-#define jpeg_natural_order7	jZAGTable7
-#define jpeg_natural_order6	jZAGTable6
-#define jpeg_natural_order5	jZAGTable5
-#define jpeg_natural_order4	jZAGTable4
-#define jpeg_natural_order3	jZAGTable3
-#define jpeg_natural_order2	jZAGTable2
+#define jpeg_natural_order7	jZAG7Table
+#define jpeg_natural_order6	jZAG6Table
+#define jpeg_natural_order5	jZAG5Table
+#define jpeg_natural_order4	jZAG4Table
+#define jpeg_natural_order3	jZAG3Table
+#define jpeg_natural_order2	jZAG2Table
 #define jpeg_aritab		jAriTab
 #endif /* NEED_SHORT_EXTERNAL_NAMES */
 
 
+/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays
+ * and coefficient-block arrays.  This won't work on 80x86 because the arrays
+ * are FAR and we're assuming a small-pointer memory model.  However, some
+ * DOS compilers provide far-pointer versions of memcpy() and memset() even
+ * in the small-model libraries.  These will be used if USE_FMEM is defined.
+ * Otherwise, the routines in jutils.c do it the hard way.
+ */
+
+#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macro */
+#define FMEMZERO(target,size)	MEMZERO(target,size)
+#else				/* 80x86 case */
+#ifdef USE_FMEM
+#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
+#else
+EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
+#define FMEMZERO(target,size)	jzero_far(target, size)
+#endif
+#endif
+
+
 /* Compression module initialization routines */
 EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
@@ -381,7 +401,6 @@ EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row,
 				    int num_rows, JDIMENSION num_cols));
 EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
 				  JDIMENSION num_blocks));
-EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
 /* Constant tables in jutils.c */
 #if 0				/* This table is not actually needed in v6a */
 extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
diff --git a/jpeglib.h b/jpeglib.h
index 1eb1fac..1327cff 100644
--- a/jpeglib.h
+++ b/jpeglib.h
@@ -2,7 +2,7 @@
  * jpeglib.h
  *
  * Copyright (C) 1991-1998, Thomas G. Lane.
- * Modified 2002-2010 by Guido Vollbeding.
+ * Modified 2002-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -39,7 +39,7 @@ extern "C" {
 
 #define JPEG_LIB_VERSION        80	/* Compatibility version 8.0 */
 #define JPEG_LIB_VERSION_MAJOR  8
-#define JPEG_LIB_VERSION_MINOR  3
+#define JPEG_LIB_VERSION_MINOR  4
 
 
 /* Various constants determining the sizes of things.
@@ -47,7 +47,7 @@ extern "C" {
  * if you want to be compatible.
  */
 
-#define DCTSIZE		    8	/* The basic DCT block is 8x8 samples */
+#define DCTSIZE		    8	/* The basic DCT block is 8x8 coefficients */
 #define DCTSIZE2	    64	/* DCTSIZE squared; # of elements in a block */
 #define NUM_QUANT_TBLS      4	/* Quantization tables are numbered 0..3 */
 #define NUM_HUFF_TBLS       4	/* Huffman tables are numbered 0..3 */
diff --git a/jpegtran.c b/jpegtran.c
index 8cb3d80..e539e91 100644
--- a/jpegtran.c
+++ b/jpegtran.c
@@ -1,7 +1,7 @@
 /*
  * jpegtran.c
  *
- * Copyright (C) 1995-2010, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1995-2011, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -78,14 +78,14 @@ usage (void)
   fprintf(stderr, "  -trim          Drop non-transformable edge blocks\n");
 #endif
   fprintf(stderr, "Switches for advanced users:\n");
+#ifdef C_ARITH_CODING_SUPPORTED
+  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
+#endif
   fprintf(stderr, "  -restart N     Set restart interval in rows, or in blocks with B\n");
   fprintf(stderr, "  -maxmemory N   Maximum memory to use (in kbytes)\n");
   fprintf(stderr, "  -outfile name  Specify name for output file\n");
   fprintf(stderr, "  -verbose  or  -debug   Emit debug output\n");
   fprintf(stderr, "Switches for wizards:\n");
-#ifdef C_ARITH_CODING_SUPPORTED
-  fprintf(stderr, "  -arithmetic    Use arithmetic coding\n");
-#endif
 #ifdef C_MULTISCAN_FILES_SUPPORTED
   fprintf(stderr, "  -scans file    Create multi-scan JPEG per script file\n");
 #endif
diff --git a/jquant1.c b/jquant1.c
index b2f96aa..9d11f70 100644
--- a/jquant1.c
+++ b/jquant1.c
@@ -2,6 +2,7 @@
  * jquant1.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -530,8 +531,8 @@ quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
 
   for (row = 0; row < num_rows; row++) {
     /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
-	      (size_t) (width * SIZEOF(JSAMPLE)));
+    FMEMZERO((void FAR *) output_buf[row],
+	     (size_t) (width * SIZEOF(JSAMPLE)));
     row_index = cquantize->row_index;
     for (ci = 0; ci < nc; ci++) {
       input_ptr = input_buf[row] + ci;
@@ -635,8 +636,8 @@ quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
 
   for (row = 0; row < num_rows; row++) {
     /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
-	      (size_t) (width * SIZEOF(JSAMPLE)));
+    FMEMZERO((void FAR *) output_buf[row],
+	     (size_t) (width * SIZEOF(JSAMPLE)));
     for (ci = 0; ci < nc; ci++) {
       input_ptr = input_buf[row] + ci;
       output_ptr = output_buf[row];
@@ -781,7 +782,7 @@ start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
     /* Initialize the propagated errors to zero. */
     arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR));
     for (i = 0; i < cinfo->out_color_components; i++)
-      jzero_far((void FAR *) cquantize->fserrors[i], arraysize);
+      FMEMZERO((void FAR *) cquantize->fserrors[i], arraysize);
     break;
   default:
     ERREXIT(cinfo, JERR_NOT_COMPILED);
diff --git a/jquant2.c b/jquant2.c
index af601e3..38fc2af 100644
--- a/jquant2.c
+++ b/jquant2.c
@@ -2,6 +2,7 @@
  * jquant2.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
+ * Modified 2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -1203,7 +1204,7 @@ start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
 	cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large)
 	  ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize);
       /* Initialize the propagated errors to zero. */
-      jzero_far((void FAR *) cquantize->fserrors, arraysize);
+      FMEMZERO((void FAR *) cquantize->fserrors, arraysize);
       /* Make the error-limit table if we didn't already. */
       if (cquantize->error_limiter == NULL)
 	init_error_limit(cinfo);
@@ -1214,8 +1215,8 @@ start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
   /* Zero the histogram or inverse color map, if necessary */
   if (cquantize->needs_zeroed) {
     for (i = 0; i < HIST_C0_ELEMS; i++) {
-      jzero_far((void FAR *) histogram[i],
-		HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell));
+      FMEMZERO((void FAR *) histogram[i],
+	       HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell));
     }
     cquantize->needs_zeroed = FALSE;
   }
diff --git a/jutils.c b/jutils.c
index 0435179..5b16b6d 100644
--- a/jutils.c
+++ b/jutils.c
@@ -2,7 +2,7 @@
  * jutils.c
  *
  * Copyright (C) 1991-1996, Thomas G. Lane.
- * Modified 2009 by Guido Vollbeding.
+ * Modified 2009-2011 by Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -148,13 +148,27 @@ jround_up (long a, long b)
  * is not all that great, because these routines aren't very heavily used.)
  */
 
-#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macros */
+#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macro */
 #define FMEMCOPY(dest,src,size)	MEMCOPY(dest,src,size)
-#define FMEMZERO(target,size)	MEMZERO(target,size)
 #else				/* 80x86 case, define if we can */
 #ifdef USE_FMEM
 #define FMEMCOPY(dest,src,size)	_fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size))
-#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
+#else
+/* This function is for use by the FMEMZERO macro defined in jpegint.h.
+ * Do not call this function directly, use the FMEMZERO macro instead.
+ */
+GLOBAL(void)
+jzero_far (void FAR * target, size_t bytestozero)
+/* Zero out a chunk of FAR memory. */
+/* This might be sample-array data, block-array data, or alloc_large data. */
+{
+  register char FAR * ptr = (char FAR *) target;
+  register size_t count;
+
+  for (count = bytestozero; count > 0; count--) {
+    *ptr++ = 0;
+  }
+}
 #endif
 #endif
 
@@ -211,21 +225,3 @@ jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row,
   }
 #endif
 }
-
-
-GLOBAL(void)
-jzero_far (void FAR * target, size_t bytestozero)
-/* Zero out a chunk of FAR memory. */
-/* This might be sample-array data, block-array data, or alloc_large data. */
-{
-#ifdef FMEMZERO
-  FMEMZERO(target, bytestozero);
-#else
-  register char FAR * ptr = (char FAR *) target;
-  register size_t count;
-
-  for (count = bytestozero; count > 0; count--) {
-    *ptr++ = 0;
-  }
-#endif
-}
diff --git a/jversion.h b/jversion.h
index e868538..5d49151 100644
--- a/jversion.h
+++ b/jversion.h
@@ -1,7 +1,7 @@
 /*
  * jversion.h
  *
- * Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -9,6 +9,6 @@
  */
 
 
-#define JVERSION	"8c  16-Jan-2011"
+#define JVERSION	"8d  15-Jan-2012"
 
-#define JCOPYRIGHT	"Copyright (C) 2011, Thomas G. Lane, Guido Vollbeding"
+#define JCOPYRIGHT	"Copyright (C) 2012, Thomas G. Lane, Guido Vollbeding"
diff --git a/libjpeg.txt b/libjpeg.txt
index 2d98e22..9702669 100644
--- a/libjpeg.txt
+++ b/libjpeg.txt
@@ -1,6 +1,6 @@
 USING THE IJG JPEG LIBRARY
 
-Copyright (C) 1994-2010, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1994-2011, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -1310,8 +1310,9 @@ jpeg_read_header's guess by setting jpeg_color_space.  jpeg_read_header also
 selects a default output color space based on (its guess of) jpeg_color_space;
 set out_color_space to override this.  Again, you must select a supported
 transformation.  jdcolor.c currently supports
-	YCbCr => GRAYSCALE
 	YCbCr => RGB
+	YCbCr => GRAYSCALE
+	RGB => GRAYSCALE
 	GRAYSCALE => RGB
 	YCCK => CMYK
 as well as the null transforms.  (Since GRAYSCALE=>RGB is provided, an
@@ -2940,7 +2941,7 @@ Library compile-time options
 A number of compile-time options are available by modifying jmorecfg.h.
 
 The JPEG standard provides for both the baseline 8-bit DCT process and
-a 12-bit DCT process.  The IJG code supports 12-bit lossy JPEG if you define
+a 12-bit DCT process.  The IJG code supports 12-bit JPEG if you define
 BITS_IN_JSAMPLE as 12 rather than 8.  Note that this causes JSAMPLE to be
 larger than a char, so it affects the surrounding application's image data.
 The sample applications cjpeg and djpeg can support 12-bit mode only for PPM
diff --git a/ltmain.sh b/ltmain.sh
old mode 100755
new mode 100644
index 3061e3c..63ae69d
--- a/ltmain.sh
+++ b/ltmain.sh
@@ -1,9 +1,9 @@
 
-# libtool (GNU libtool) 2.4
+# libtool (GNU libtool) 2.4.2
 # Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010, 2011 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.
 
@@ -41,6 +41,7 @@
 #       --quiet, --silent    don't print informational messages
 #       --no-quiet, --no-silent
 #                            print informational messages (default)
+#       --no-warn            don't display warning messages
 #       --tag=TAG            use configuration variables from tag TAG
 #   -v, --verbose            print more informational messages than default
 #       --no-verbose         don't print the extra informational messages
@@ -69,7 +70,7 @@
 #         compiler:		$LTCC
 #         compiler flags:		$LTCFLAGS
 #         linker:		$LD (gnu? $with_gnu_ld)
-#         $progname:	(GNU libtool) 2.4
+#         $progname:	(GNU libtool) 2.4.2
 #         automake:	$automake_version
 #         autoconf:	$autoconf_version
 #
@@ -79,9 +80,9 @@
 
 PROGRAM=libtool
 PACKAGE=libtool
-VERSION=2.4
+VERSION=2.4.2
 TIMESTAMP=""
-package_revision=1.3293
+package_revision=1.3337
 
 # Be Bourne compatible
 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
@@ -136,15 +137,10 @@ progpath="$0"
 
 : ${CP="cp -f"}
 test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
-: ${EGREP="grep -E"}
-: ${FGREP="grep -F"}
-: ${GREP="grep"}
-: ${LN_S="ln -s"}
 : ${MAKE="make"}
 : ${MKDIR="mkdir"}
 : ${MV="mv -f"}
 : ${RM="rm -f"}
-: ${SED="sed"}
 : ${SHELL="${CONFIG_SHELL-/bin/sh}"}
 : ${Xsed="$SED -e 1s/^X//"}
 
@@ -387,7 +383,7 @@ case $progpath in
      ;;
   *)
      save_IFS="$IFS"
-     IFS=:
+     IFS=${PATH_SEPARATOR-:}
      for progdir in $PATH; do
        IFS="$save_IFS"
        test -x "$progdir/$progname" && break
@@ -771,8 +767,8 @@ func_help ()
 	s*\$LTCFLAGS*'"$LTCFLAGS"'*
 	s*\$LD*'"$LD"'*
 	s/\$with_gnu_ld/'"$with_gnu_ld"'/
-	s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
-	s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
+	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
+	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
 	p
 	d
      }
@@ -1052,6 +1048,7 @@ opt_finish=false
 opt_help=false
 opt_help_all=false
 opt_silent=:
+opt_warning=:
 opt_verbose=:
 opt_silent=false
 opt_verbose=false
@@ -1118,6 +1115,10 @@ esac
 			;;
       --no-silent|--no-quiet)
 			opt_silent=false
+func_append preserve_args " $opt"
+			;;
+      --no-warning|--no-warn)
+			opt_warning=false
 func_append preserve_args " $opt"
 			;;
       --no-verbose)
@@ -2059,7 +2060,7 @@ func_mode_compile ()
     *.[cCFSifmso] | \
     *.ada | *.adb | *.ads | *.asm | \
     *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
-    *.[fF][09]? | *.for | *.java | *.obj | *.sx | *.cu | *.cup)
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
       func_xform "$libobj"
       libobj=$func_xform_result
       ;;
@@ -3201,11 +3202,13 @@ func_mode_install ()
 
       # Set up the ranlib parameters.
       oldlib="$destdir/$name"
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result
 
       func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
 
       if test -n "$stripme" && test -n "$old_striplib"; then
-	func_show_eval "$old_striplib $oldlib" 'exit $?'
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
       fi
 
       # Do each command in the postinstall commands.
@@ -3470,7 +3473,7 @@ static const void *lt_preloaded_setup() {
 	  # linked before any other PIC object.  But we must not use
 	  # pic_flag when linking with -static.  The problem exists in
 	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
-	  *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
 	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
 	  *-*-hpux*)
 	    pic_flag_for_symtable=" $pic_flag"  ;;
@@ -3982,14 +3985,17 @@ func_exec_program_core ()
 # launches target application with the remaining arguments.
 func_exec_program ()
 {
-  for lt_wr_arg
-  do
-    case \$lt_wr_arg in
-    --lt-*) ;;
-    *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
-    esac
-    shift
-  done
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
   func_exec_program_core \${1+\"\$@\"}
 }
 
@@ -5057,9 +5063,15 @@ void lt_dump_script (FILE* f)
 {
 EOF
 	    func_emit_wrapper yes |
-              $SED -e 's/\([\\"]\)/\\\1/g' \
-	           -e 's/^/  fputs ("/' -e 's/$/\\n", f);/'
-
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
             cat <<"EOF"
 }
 EOF
@@ -5643,7 +5655,8 @@ func_mode_link ()
 	continue
 	;;
 
-      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
 	func_append compiler_flags " $arg"
 	func_append compile_command " $arg"
 	func_append finalize_command " $arg"
@@ -6147,7 +6160,8 @@ func_mode_link ()
 	lib=
 	found=no
 	case $deplib in
-	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
 	  if test "$linkmode,$pass" = "prog,link"; then
 	    compile_deplibs="$deplib $compile_deplibs"
 	    finalize_deplibs="$deplib $finalize_deplibs"
@@ -6831,7 +6845,7 @@ func_mode_link ()
 	         test "$hardcode_direct_absolute" = no; then
 		add="$dir/$linklib"
 	      elif test "$hardcode_minus_L" = yes; then
-		add_dir="-L$dir"
+		add_dir="-L$absdir"
 		# Try looking first in the location we're being installed to.
 		if test -n "$inst_prefix_dir"; then
 		  case $libdir in
@@ -7316,6 +7330,7 @@ func_mode_link ()
 	  # which has an extra 1 added just for fun
 	  #
 	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
 	  darwin|linux|osf|windows|none)
 	    func_arith $number_major + $number_minor
 	    current=$func_arith_result
@@ -7432,7 +7447,7 @@ func_mode_link ()
 	  versuffix="$major.$revision"
 	  ;;
 
-	linux)
+	linux) # correct to gnu/linux during the next big refactor
 	  func_arith $current - $age
 	  major=.$func_arith_result
 	  versuffix="$major.$age.$revision"
@@ -8020,6 +8035,11 @@ EOF
 
       # Test again, we may have decided not to build it any more
       if test "$build_libtool_libs" = yes; then
+	# Remove ${wl} instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
 	if test "$hardcode_into_libs" = yes; then
 	  # Hardcode the library paths
 	  hardcode_libdirs=
@@ -8050,7 +8070,7 @@ EOF
 	    elif test -n "$runpath_var"; then
 	      case "$perm_rpath " in
 	      *" $libdir "*) ;;
-	      *) func_apped perm_rpath " $libdir" ;;
+	      *) func_append perm_rpath " $libdir" ;;
 	      esac
 	    fi
 	  done
@@ -8058,11 +8078,7 @@ EOF
 	  if test -n "$hardcode_libdir_separator" &&
 	     test -n "$hardcode_libdirs"; then
 	    libdir="$hardcode_libdirs"
-	    if test -n "$hardcode_libdir_flag_spec_ld"; then
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
-	    else
-	      eval dep_rpath=\"$hardcode_libdir_flag_spec\"
-	    fi
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
 	  fi
 	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
 	    # We should set the runpath_var.
@@ -9152,6 +9168,8 @@ EOF
 	    esac
 	  done
 	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
 	eval cmds=\"$old_archive_cmds\"
 
 	func_len " $cmds"
@@ -9261,7 +9279,8 @@ EOF
 	      *.la)
 		func_basename "$deplib"
 		name="$func_basename_result"
-		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		func_resolve_sysroot "$deplib"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
 		test -z "$libdir" && \
 		  func_fatal_error "\`$deplib' is not a valid libtool archive"
 		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
diff --git a/structure.txt b/structure.txt
index fe88701..44e48ca 100644
--- a/structure.txt
+++ b/structure.txt
@@ -1,6 +1,6 @@
 IJG JPEG LIBRARY:  SYSTEM ARCHITECTURE
 
-Copyright (C) 1991-2009, Thomas G. Lane, Guido Vollbeding.
+Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
 This file is part of the Independent JPEG Group's software.
 For conditions of distribution and use, see the accompanying README file.
 
@@ -20,7 +20,7 @@ In this document, JPEG-specific terminology follows the JPEG standard:
   A "component" means a color channel, e.g., Red or Luminance.
   A "sample" is a single component value (i.e., one number in the image data).
   A "coefficient" is a frequency coefficient (a DCT transform output number).
-  A "block" is an 8x8 group of samples or coefficients.
+  A "block" is an array of samples or coefficients.
   An "MCU" (minimum coded unit) is an interleaved set of blocks of size
 	determined by the sampling factors, or a single block in a
 	noninterleaved scan.
@@ -43,13 +43,8 @@ command-line user interface and I/O routines for several uncompressed image
 formats.  This document concentrates on the library itself.
 
 We desire the library to be capable of supporting all JPEG baseline, extended
-sequential, and progressive DCT processes.  Hierarchical processes are not
-supported.
-
-The library does not support the lossless (spatial) JPEG process.  Lossless
-JPEG shares little or no code with lossy JPEG, and would normally be used
-without the extensive pre- and post-processing provided by this library.
-We feel that lossless JPEG is better handled by a separate library.
+sequential, and progressive DCT processes.  The library does not support the
+hierarchical or lossless processes defined in the standard.
 
 Within these limits, any set of compression parameters allowed by the JPEG
 spec should be readable for decompression.  (We can be more restrictive about
@@ -175,7 +170,7 @@ can be simplified a little if they work on padded data: it's not necessary to
 have special cases at the right and bottom edges.  Therefore the interface
 buffer is always an integral number of blocks wide and high, and we expect
 compression preprocessing to pad the source data properly.  Padding will occur
-only to the next block (8-sample) boundary.  In an interleaved-scan situation,
+only to the next block (N-sample) boundary.  In an interleaved-scan situation,
 additional dummy blocks may be used to fill out MCUs, but the MCU assembly and
 disassembly logic will create or discard these blocks internally.  (This is
 advantageous for speed reasons, since we avoid DCTing the dummy blocks.
@@ -350,9 +345,9 @@ The objects shown above are:
   require context rows above and below the current row group; the
   preprocessing controller is responsible for supplying these rows via proper
   buffering.  The downsampler is responsible for edge expansion at the right
-  edge (i.e., extending each sample row to a multiple of 8 samples); but the
+  edge (i.e., extending each sample row to a multiple of N samples); but the
   preprocessing controller is responsible for vertical edge expansion (i.e.,
-  duplicating the bottom sample row as needed to make a multiple of 8 rows).
+  duplicating the bottom sample row as needed to make a multiple of N rows).
 
 * Coefficient controller: buffer controller for the DCT-coefficient data.
   This controller handles MCU assembly, including insertion of dummy DCT
@@ -385,8 +380,9 @@ objects:
 
 * Data destination manager: writes the output JPEG datastream to its final
   destination (e.g., a file).  The destination manager supplied with the
-  library knows how to write to a stdio stream; for other behaviors, the
-  surrounding application may provide its own destination manager.
+  library knows how to write to a stdio stream or to a memory buffer;
+  for other behaviors, the surrounding application may provide its own
+  destination manager.
 
 * Memory manager: allocates and releases memory, controls virtual arrays
   (with backing store management, where required).
@@ -504,9 +500,9 @@ objects:
 * Marker reading: decodes JPEG markers (except for RSTn).
 
 * Data source manager: supplies the input JPEG datastream.  The source
-  manager supplied with the library knows how to read from a stdio stream;
-  for other behaviors, the surrounding application may provide its own source
-  manager.
+  manager supplied with the library knows how to read from a stdio stream
+  or from a memory buffer;  for other behaviors, the surrounding application
+  may provide its own source manager.
 
 * Memory manager: same as for compression library.
 
@@ -654,9 +650,9 @@ contain quantized coefficients everywhere outside the DCT/IDCT subsystems.
 (This latter decision may need to be revisited to support variable
 quantization a la JPEG Part 3.)
 
-Notice that the allocation unit is now a row of 8x8 blocks, corresponding to
-eight rows of samples.  Otherwise the structure is much the same as for
-samples, and for the same reasons.
+Notice that the allocation unit is now a row of 8x8 coefficient blocks,
+corresponding to N rows of samples.  Otherwise the structure is much the same
+as for samples, and for the same reasons.
 
 On machines where malloc() can't handle a request bigger than 64Kb, this data
 structure limits us to rows of less than 512 JBLOCKs, or a picture width of
diff --git a/transupp.c b/transupp.c
index 4060544..016f383 100644
--- a/transupp.c
+++ b/transupp.c
@@ -1,7 +1,7 @@
 /*
  * transupp.c
  *
- * Copyright (C) 1997-2009, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -771,7 +771,7 @@ jt_read_integer (const char ** strptr, JDIMENSION * result)
  * The routine returns TRUE if the spec string is valid, FALSE if not.
  *
  * The crop spec string should have the format
- *	<width>x<height>{+-}<xoffset>{+-}<yoffset>
+ *	<width>[f]x<height>[f]{+-}<xoffset>{+-}<yoffset>
  * where width, height, xoffset, and yoffset are unsigned integers.
  * Each of the elements can be omitted to indicate a default value.
  * (A weakness of this style is that it is not possible to omit xoffset
@@ -793,14 +793,22 @@ jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec)
     /* fetch width */
     if (! jt_read_integer(&spec, &info->crop_width))
       return FALSE;
-    info->crop_width_set = JCROP_POS;
+    if (*spec == 'f' || *spec == 'F') {
+      spec++;
+      info->crop_width_set = JCROP_FORCE;
+    } else
+      info->crop_width_set = JCROP_POS;
   }
-  if (*spec == 'x' || *spec == 'X') {	
+  if (*spec == 'x' || *spec == 'X') {
     /* fetch height */
     spec++;
     if (! jt_read_integer(&spec, &info->crop_height))
       return FALSE;
-    info->crop_height_set = JCROP_POS;
+    if (*spec == 'f' || *spec == 'F') {
+      spec++;
+      info->crop_height_set = JCROP_FORCE;
+    } else
+      info->crop_height_set = JCROP_POS;
   }
   if (*spec == '+' || *spec == '-') {
     /* fetch xoffset */
@@ -980,10 +988,16 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
     else
       yoffset = info->crop_yoffset;
     /* Now adjust so that upper left corner falls at an iMCU boundary */
-    info->output_width =
-      info->crop_width + (xoffset % info->iMCU_sample_width);
-    info->output_height =
-      info->crop_height + (yoffset % info->iMCU_sample_height);
+    if (info->crop_width_set == JCROP_FORCE)
+      info->output_width = info->crop_width;
+    else
+      info->output_width =
+        info->crop_width + (xoffset % info->iMCU_sample_width);
+    if (info->crop_height_set == JCROP_FORCE)
+      info->output_height = info->crop_height;
+    else
+      info->output_height =
+        info->crop_height + (yoffset % info->iMCU_sample_height);
     /* Save x/y offsets measured in iMCUs */
     info->x_crop_offset = xoffset / info->iMCU_sample_width;
     info->y_crop_offset = yoffset / info->iMCU_sample_height;
diff --git a/transupp.h b/transupp.h
index 7c16c19..9aa0af3 100644
--- a/transupp.h
+++ b/transupp.h
@@ -1,7 +1,7 @@
 /*
  * transupp.h
  *
- * Copyright (C) 1997-2009, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -57,6 +57,7 @@
  * corner up and/or left to make it so, simultaneously increasing the region
  * dimensions to keep the lower right crop corner unchanged.  (Thus, the
  * output image covers at least the requested region, but may cover more.)
+ * The adjustment of the region dimensions may be optionally disabled.
  *
  * We also provide a lossless-resize option, which is kind of a lossless-crop
  * operation in the DCT coefficient block domain - it discards higher-order
@@ -106,13 +107,15 @@ typedef enum {
 
 /*
  * Codes for crop parameters, which can individually be unspecified,
- * positive, or negative.  (Negative width or height makes no sense, though.)
+ * positive or negative for xoffset or yoffset,
+ * positive or forced for width or height.
  */
 
 typedef enum {
-	JCROP_UNSET,
-	JCROP_POS,
-	JCROP_NEG
+        JCROP_UNSET,
+        JCROP_POS,
+        JCROP_NEG,
+        JCROP_FORCE
 } JCROP_CODE;
 
 /*
@@ -133,9 +136,9 @@ typedef struct {
    * These can be filled in by jtransform_parse_crop_spec().
    */
   JDIMENSION crop_width;	/* Width of selected region */
-  JCROP_CODE crop_width_set;
+  JCROP_CODE crop_width_set;	/* (forced disables adjustment) */
   JDIMENSION crop_height;	/* Height of selected region */
-  JCROP_CODE crop_height_set;
+  JCROP_CODE crop_height_set;	/* (forced disables adjustment) */
   JDIMENSION crop_xoffset;	/* X offset of selected region */
   JCROP_CODE crop_xoffset_set;	/* (negative measures from right edge) */
   JDIMENSION crop_yoffset;	/* Y offset of selected region */
diff --git a/usage.txt b/usage.txt
index eae5842..de9def7 100644
--- a/usage.txt
+++ b/usage.txt
@@ -77,6 +77,12 @@ The basic command line switches for cjpeg are:
 			saying -grayscale, you'll get a smaller JPEG file that
 			takes less time to process.
 
+	-rgb		Create RGB JPEG file.
+			Using this switch suppresses the conversion from RGB
+			colorspace input to the default YCbCr JPEG colorspace.
+			Use this switch in combination with the -block N
+			switch (see below) for lossless JPEG coding.
+
 	-optimize	Perform optimization of entropy encoding parameters.
 			Without this, default encoding parameters are used.
 			-optimize usually makes the JPEG file a little smaller,
@@ -151,6 +157,11 @@ file size is about the same --- often a little smaller.
 
 Switches for advanced users:
 
+	-arithmetic	Use arithmetic coding.  CAUTION: arithmetic coded JPEG
+			is not yet widely implemented, so many decoders will
+			be unable to view an arithmetic coded JPEG file at
+			all.
+
 	-block N	Set DCT block size.  All N from 1 to 16 are possible.
 			Default is 8 (baseline format).
 			Larger values produce higher compression,
@@ -210,11 +221,6 @@ factor will visibly blur the image, however.
 
 Switches for wizards:
 
-	-arithmetic	Use arithmetic coding.  CAUTION: arithmetic coded JPEG
-			is not yet widely implemented, so many decoders will
-			be unable to view an arithmetic coded JPEG file at
-			all.
-
 	-baseline	Force baseline-compatible quantization tables to be
 			generated.  This clamps quantization values to 8 bits
 			even at low quality settings.  (This switch is poorly
@@ -459,9 +465,9 @@ To specify the coded JPEG representation used in the output file,
 jpegtran accepts a subset of the switches recognized by cjpeg:
 	-optimize	Perform optimization of entropy encoding parameters.
 	-progressive	Create progressive JPEG file.
+	-arithmetic	Use arithmetic coding.
 	-restart N	Emit a JPEG restart marker every N MCU rows, or every
 			N MCU blocks if "B" is attached to the number.
-	-arithmetic	Use arithmetic coding.
 	-scans file	Use the scan script given in the specified text file.
 See the previous discussion of cjpeg for more details about these switches.
 If you specify none of these switches, you get a plain baseline-JPEG output