diff --git a/nuttx/Kconfig b/nuttx/Kconfig
index b647a49f81..90fe74f257 100644
--- a/nuttx/Kconfig
+++ b/nuttx/Kconfig
@@ -53,10 +53,28 @@ config WINDOWS_MSYS
 	bool "MSYS"
 
 config WINDOWS_OTHER
-	bool "Other"
+	bool "Other POSIX-like environment"
 
 endchoice
 
+config WINDOWS_MKLINK
+	bool "Use mklink"
+	default y
+	depends on HOST_WINDOWS
+	---help---
+		Use the mklink command to set up symbolic links when NuttX is
+		configured.  Otherwise, configuration directories will be copied to
+		establish the configuration.
+
+		If directories are copied, then some confusion can result ("Which
+		version of the file did I modify?").  In that case, it is recommended
+		that you re-build using 'make clean_context all'.  That will cause the
+		configured directories to be recopied on each build.
+
+		NOTE: This option also (1) that you have administrator privileges, (2)
+		that you are using Windows 2000 or better, and (3) that you are using
+		the NTFS file system.  Select 'n' is that is not the case.
+
 menu "Build Configuration"
 
 config APPS_DIR
diff --git a/nuttx/Makefile b/nuttx/Makefile
index 0813098c6a..8235854fd1 100644
--- a/nuttx/Makefile
+++ b/nuttx/Makefile
@@ -33,7 +33,7 @@
 #
 ############################################################################
 
-TOPDIR		:= ${shell pwd | sed -e 's/ /\\ /g'}
+TOPDIR := ${shell pwd | sed -e 's/ /\\ /g'}
 -include ${TOPDIR}/.config
 -include ${TOPDIR}/tools/Config.mk
 -include ${TOPDIR}/Make.defs
@@ -49,21 +49,21 @@ endif
 # Default tools
 
 ifeq ($(DIRLINK),)
-DIRLINK		= $(TOPDIR)/tools/link.sh
-DIRUNLINK	= $(TOPDIR)/tools/unlink.sh
+DIRLINK = $(TOPDIR)/tools/link.sh
+DIRUNLINK = $(TOPDIR)/tools/unlink.sh
 endif
 
 # This define is passed as EXTRADEFINES for kernel-mode builds.  It is also passed
 # during PASS1 (but not PASS2) context and depend targets.
 
-KDEFINE		= ${shell $(TOPDIR)/tools/define.sh $(CC) __KERNEL__}
+KDEFINE = ${shell $(TOPDIR)/tools/define.sh $(CC) __KERNEL__}
 
 # Process architecture and board-specific directories
 
-ARCH_DIR	= arch/$(CONFIG_ARCH)
-ARCH_SRC	= $(ARCH_DIR)/src
-ARCH_INC	= $(ARCH_DIR)/include
-BOARD_DIR	= configs/$(CONFIG_ARCH_BOARD)
+ARCH_DIR = arch/$(CONFIG_ARCH)
+ARCH_SRC = $(ARCH_DIR)/src
+ARCH_INC = $(ARCH_DIR)/include
+BOARD_DIR = configs/$(CONFIG_ARCH_BOARD)
 
 # Add-on directories.  These may or may not be in place in the
 # NuttX source tree (they must be specifically installed)
@@ -74,22 +74,22 @@ BOARD_DIR	= configs/$(CONFIG_ARCH_BOARD)
 # a Makefile is found at the path provided by CONFIG_APPS_DIR
 
 ifeq ($(CONFIG_APPS_DIR),)
-CONFIG_APPS_DIR	= ../apps
+CONFIG_APPS_DIR = ../apps
 endif
-APPDIR		:= ${shell if [ -r $(CONFIG_APPS_DIR)/Makefile ]; then echo "$(CONFIG_APPS_DIR)"; fi}
+APPDIR := ${shell if [ -r $(CONFIG_APPS_DIR)/Makefile ]; then echo "$(CONFIG_APPS_DIR)"; fi}
 
 # All add-on directories.
 #
 # NUTTX_ADDONS is the list of directories built into the NuttX kernel.
 # USER_ADDONS is the list of directories that will be built into the user application
 
-NUTTX_ADDONS	:= $(NX_DIR)
-USER_ADDONS		:=
+NUTTX_ADDONS := $(NX_DIR)
+USER_ADDONS :=
 
 ifeq ($(CONFIG_NUTTX_KERNEL),y)
-USER_ADDONS	+= $(APPDIR)
+USER_ADDONS += $(APPDIR)
 else
-NUTTX_ADDONS	+= $(APPDIR)
+NUTTX_ADDONS += $(APPDIR)
 endif
 
 # Lists of build directories.
@@ -106,37 +106,37 @@ endif
 #   be cleaned to prevent garbarge from collecting in them when changing
 #   configurations.
 
-NONFSDIRS	= sched $(ARCH_SRC) $(NUTTX_ADDONS)
-FSDIRS		= fs drivers binfmt
-CONTEXTDIRS	= $(APPDIR)
-USERDIRS	=
+NONFSDIRS = sched $(ARCH_SRC) $(NUTTX_ADDONS)
+FSDIRS = fs drivers binfmt
+CONTEXTDIRS = $(APPDIR)
+USERDIRS =
 
 ifeq ($(CONFIG_NUTTX_KERNEL),y)
 
-NONFSDIRS	+= syscall
-CONTEXTDIRS	+= syscall
-USERDIRS	+= syscall lib mm $(USER_ADDONS)
+NONFSDIRS += syscall
+CONTEXTDIRS += syscall
+USERDIRS += syscall lib mm $(USER_ADDONS)
 ifeq ($(CONFIG_HAVE_CXX),y)
-USERDIRS	+= libxx
+USERDIRS += libxx
 endif
 
 else
 
-NONFSDIRS	+= lib mm
-OTHERDIRS	+= syscall $(USER_ADDONS)
+NONFSDIRS += lib mm
+OTHERDIRS += syscall $(USER_ADDONS)
 ifeq ($(CONFIG_HAVE_CXX),y)
-NONFSDIRS	+= libxx
+NONFSDIRS += libxx
 else
-OTHERDIRS	+= libxx
+OTHERDIRS += libxx
 endif
 
 endif
 
 ifeq ($(CONFIG_NX),y)
-NONFSDIRS	+= graphics
-CONTEXTDIRS	+= graphics
+NONFSDIRS += graphics
+CONTEXTDIRS += graphics
 else
-OTHERDIRS	+= graphics
+OTHERDIRS += graphics
 endif
 
 # CLEANDIRS are the directories that will clean in.  These are
@@ -147,29 +147,29 @@ endif
 # USERDEPDIRS. If NuttX and applications are built separately (CONFIG_NUTTX_KERNEL),
 #   then this holds only the directories containing user files.
 
-CLEANDIRS	= $(NONFSDIRS) $(FSDIRS) $(USERDIRS) $(OTHERDIRS)
-KERNDEPDIRS	= $(NONFSDIRS)
-USERDEPDIRS	= $(USERDIRS)
+CLEANDIRS = $(NONFSDIRS) $(FSDIRS) $(USERDIRS) $(OTHERDIRS)
+KERNDEPDIRS = $(NONFSDIRS)
+USERDEPDIRS = $(USERDIRS)
 
 # Add file system directories to KERNDEPDIRS (they are already in CLEANDIRS)
 
 ifeq ($(CONFIG_NFILE_DESCRIPTORS),0)
 ifeq ($(CONFIG_NET),y)
 ifneq ($(CONFIG_NSOCKET_DESCRIPTORS),0)
-KERNDEPDIRS	+= fs
+KERNDEPDIRS += fs
 endif
-KERNDEPDIRS	+= drivers
+KERNDEPDIRS += drivers
 endif
 else
-KERNDEPDIRS	+= $(FSDIRS)
+KERNDEPDIRS += $(FSDIRS)
 endif
 
 # Add networking directories to KERNDEPDIRS and CLEANDIRS
 
 ifeq ($(CONFIG_NET),y)
-KERNDEPDIRS	+= net
+KERNDEPDIRS += net
 endif
-CLEANDIRS	+= net
+CLEANDIRS += net
 
 #
 # Extra objects used in the final link.
@@ -179,7 +179,7 @@ CLEANDIRS	+= net
 # be created).  If the pass1 obect is an archive, it could go anywhere.
 
 ifeq ($(CONFIG_BUILD_2PASS),y)
-EXTRA_OBJS	+= $(CONFIG_PASS1_OBJECT)
+EXTRA_OBJS += $(CONFIG_PASS1_OBJECT)
 endif
 
 # NUTTXLIBS is the list of NuttX libraries that is passed to the
@@ -189,18 +189,18 @@ endif
 # USERLIBS is the list of libraries used to build the final user-space
 #   application
 
-NUTTXLIBS	= sched/libsched$(LIBEXT) $(ARCH_SRC)/libarch$(LIBEXT)
-USERLIBS	=
+NUTTXLIBS = sched/libsched$(LIBEXT) $(ARCH_SRC)/libarch$(LIBEXT)
+USERLIBS =
 
 # Add libraries for syscall support.  The C library will be needed by
 # both the kernel- and user-space builds.  For now, the memory manager (mm)
 # is placed in user space (only).
 
 ifeq ($(CONFIG_NUTTX_KERNEL),y)
-NUTTXLIBS	+= syscall/libstubs$(LIBEXT) lib/libklib$(LIBEXT)
-USERLIBS	+= syscall/libproxies$(LIBEXT) lib/libulib$(LIBEXT) mm/libmm$(LIBEXT)
+NUTTXLIBS += syscall/libstubs$(LIBEXT) lib/libklib$(LIBEXT)
+USERLIBS += syscall/libproxies$(LIBEXT) lib/libulib$(LIBEXT) mm/libmm$(LIBEXT)
 else
-NUTTXLIBS	+= mm/libmm$(LIBEXT) lib/liblib$(LIBEXT)
+NUTTXLIBS += mm/libmm$(LIBEXT) lib/liblib$(LIBEXT)
 endif
 
 # Add libraries for C++ support.  CXX, CXXFLAGS, and COMPILEXX must
@@ -208,9 +208,9 @@ endif
 
 ifeq ($(CONFIG_HAVE_CXX),y)
 ifeq ($(CONFIG_NUTTX_KERNEL),y)
-USERLIBS	+= libxx/liblibxx$(LIBEXT)
+USERLIBS += libxx/liblibxx$(LIBEXT)
 else
-NUTTXLIBS	+= libxx/liblibxx$(LIBEXT)
+NUTTXLIBS += libxx/liblibxx$(LIBEXT)
 endif
 endif
 
@@ -218,44 +218,44 @@ endif
 
 ifneq ($(APPDIR),)
 ifeq ($(CONFIG_NUTTX_KERNEL),y)
-USERLIBS	+= $(APPDIR)/libapps$(LIBEXT)
+USERLIBS += $(APPDIR)/libapps$(LIBEXT)
 else
-NUTTXLIBS	+= $(APPDIR)/libapps$(LIBEXT)
+NUTTXLIBS += $(APPDIR)/libapps$(LIBEXT)
 endif
 endif
 
 # Add libraries for network support
 
 ifeq ($(CONFIG_NET),y)
-NUTTXLIBS	+= net/libnet$(LIBEXT)
+NUTTXLIBS += net/libnet$(LIBEXT)
 endif
 
 # Add libraries for file system support
 
 ifeq ($(CONFIG_NFILE_DESCRIPTORS),0)
 ifneq ($(CONFIG_NSOCKET_DESCRIPTORS),0)
-NUTTXLIBS	+= fs/libfs$(LIBEXT)
+NUTTXLIBS += fs/libfs$(LIBEXT)
 endif
 ifeq ($(CONFIG_NET),y)
-NUTTXLIBS	+= drivers/libdrivers$(LIBEXT)
+NUTTXLIBS += drivers/libdrivers$(LIBEXT)
 endif
 else
-NUTTXLIBS	+= fs/libfs$(LIBEXT) drivers/libdrivers$(LIBEXT) binfmt/libbinfmt$(LIBEXT)
+NUTTXLIBS += fs/libfs$(LIBEXT) drivers/libdrivers$(LIBEXT) binfmt/libbinfmt$(LIBEXT)
 endif
 
 # Add libraries for the NX graphics sub-system
 
 ifneq ($(NX_DIR),)
-NUTTXLIBS	+= $(NX_DIR)/libnx$(LIBEXT)
+NUTTXLIBS += $(NX_DIR)/libnx$(LIBEXT)
 endif
 
 ifeq ($(CONFIG_NX),y)
-NUTTXLIBS        += graphics/libgraphics$(LIBEXT)
+NUTTXLIBS += graphics/libgraphics$(LIBEXT)
 endif
 
 # This is the name of the final target (relative to the top level directorty)
 
-BIN		= nuttx$(EXEEXT)
+BIN = nuttx$(EXEEXT)
 
 all: $(BIN)
 .PHONY: context clean_context check_context export subdir_clean clean subdir_distclean distclean apps_clean apps_distclean
@@ -286,7 +286,7 @@ endif
 
 ifeq ($(NEED_MATH_H),y)
 include/math.h: include/nuttx/math.h
-	@cp -f include/nuttx/math.h include/math.h
+	$(Q) cp -f include/nuttx/math.h include/math.h
 else
 include/math.h:
 endif
@@ -299,7 +299,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FLOAT_H),y)
 include/float.h: include/nuttx/float.h
-	@cp -f include/nuttx/float.h include/float.h
+	$(Q) cp -f include/nuttx/float.h include/float.h
 else
 include/float.h:
 endif
@@ -311,7 +311,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_STDARG_H),y)
 include/stdarg.h: include/nuttx/stdarg.h
-	@cp -f include/nuttx/stdarg.h include/stdarg.h
+	$(Q) cp -f include/nuttx/stdarg.h include/stdarg.h
 else
 include/stdarg.h:
 endif
@@ -321,27 +321,27 @@ endif
 # tools/mkversion tool is built and used to create include/nuttx/version.h
 
 tools/mkversion:
-	@$(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)"  mkversion
+	$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)"  mkversion
 
 $(TOPDIR)/.version:
-	@if [ ! -f .version ]; then \
+	$(Q) if [ ! -f .version ]; then \
 		echo "No .version file found, creating one"; \
 		tools/version.sh -v 0.0 -b 0 .version; \
 		chmod 755 .version; \
 	fi
 
 include/nuttx/version.h: $(TOPDIR)/.version tools/mkversion
-	@tools/mkversion $(TOPDIR) > include/nuttx/version.h
+	$(Q) tools/mkversion $(TOPDIR) > include/nuttx/version.h
 
 # Targets used to build include/nuttx/config.h.  Creation of config.h is
 # part of the overall NuttX configuration sequence. Notice that the
 # tools/mkconfig tool is built and used to create include/nuttx/config.h
 
 tools/mkconfig:
-	@$(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)"  mkconfig
+	$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)"  mkconfig
 
 include/nuttx/config.h: $(TOPDIR)/.config tools/mkconfig
-	@tools/mkconfig $(TOPDIR) > include/nuttx/config.h
+	$(Q) tools/mkconfig $(TOPDIR) > include/nuttx/config.h
 
 # dirlinks, and helpers
 #
@@ -353,7 +353,8 @@ include/nuttx/config.h: $(TOPDIR)/.config tools/mkconfig
 
 include/apps: Make.defs
 ifneq ($(APPDIR),)
-	@if [ -d $(TOPDIR)/$(APPDIR)/include ]; then \
+	@echo "LN: include/apps -> $(APPDIR)/include"
+	$(Q) if [ -d $(TOPDIR)/$(APPDIR)/include ]; then \
 		$(DIRLINK) $(TOPDIR)/$(APPDIR)/include include/apps; \
 	fi
 endif
@@ -361,30 +362,35 @@ endif
 # Link the arch/<arch-name>/include directory to include/arch
 
 include/arch: Make.defs
-	@$(DIRLINK) $(TOPDIR)/$(ARCH_DIR)/include include/arch
+	@echo "LN: include/arch -> $(TOPDIR)/$(ARCH_DIR)/include"
+	$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_DIR)/include include/arch
 
 # Link the configs/<board-name>/include directory to include/arch/board
 
 include/arch/board: include/arch Make.defs include/arch
-	@$(DIRLINK) $(TOPDIR)/$(BOARD_DIR)/include include/arch/board
+	@echo "LN: include/arch/board -> $(TOPDIR)/$(BOARD_DIR)/include"
+	$(Q) $(DIRLINK) $(TOPDIR)/$(BOARD_DIR)/include include/arch/board
 
 # Link the configs/<board-name>/src dir to arch/<arch-name>/src/board
 
 $(ARCH_SRC)/board: Make.defs
-	@$(DIRLINK) $(TOPDIR)/$(BOARD_DIR)/src $(ARCH_SRC)/board
+	@echo "LN: $(ARCH_SRC)/board -> $(TOPDIR)/$(BOARD_DIR)/src"
+	$(Q) $(DIRLINK) $(TOPDIR)/$(BOARD_DIR)/src $(ARCH_SRC)/board
 
 # Link arch/<arch-name>/include/<chip-name> to arch/<arch-name>/include/chip
 
 $(ARCH_SRC)/chip: Make.defs
 ifneq ($(CONFIG_ARCH_CHIP),)
-	@$(DIRLINK) $(TOPDIR)/$(ARCH_SRC)/$(CONFIG_ARCH_CHIP) $(ARCH_SRC)/chip
+	@echo "LN: $(ARCH_SRC)/chip -> $(TOPDIR)\$(ARCH_SRC)/$(CONFIG_ARCH_CHIP)"
+	$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_SRC)/$(CONFIG_ARCH_CHIP) $(ARCH_SRC)/chip
 endif
 
 # Link arch/<arch-name>/src/<chip-name> to arch/<arch-name>/src/chip
 
 include/arch/chip: include/arch Make.defs
 ifneq ($(CONFIG_ARCH_CHIP),)
-	@$(DIRLINK) $(TOPDIR)/$(ARCH_INC)/$(CONFIG_ARCH_CHIP) include/arch/chip
+	@echo "LN: include/arch/chip -> $(TOPDIR)/$(ARCH_INC)/$(CONFIG_ARCH_CHIP)"
+	$(Q) $(DIRLINK) $(TOPDIR)/$(ARCH_INC)/$(CONFIG_ARCH_CHIP) include/arch/chip
 endif
 
 dirlinks: include/arch include/arch/board include/arch/chip $(ARCH_SRC)/board $(ARCH_SRC)/chip include/apps
@@ -397,7 +403,7 @@ dirlinks: include/arch include/arch/board include/arch/chip $(ARCH_SRC)/board $(
 # the establishment of symbolic links to configured directories.
 
 context: check_context include/nuttx/config.h include/nuttx/version.h include/math.h include/float.h include/stdarg.h dirlinks
-	@for dir in $(CONTEXTDIRS) ; do \
+	$(Q) for dir in $(CONTEXTDIRS) ; do \
 		$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" context; \
 	done
 
@@ -407,16 +413,16 @@ context: check_context include/nuttx/config.h include/nuttx/version.h include/ma
 # and symbolic links created by the context target.
 
 clean_context:
-	@rm -f include/nuttx/config.h
-	@rm -f include/nuttx/version.h
-	@rm -f include/math.h
-	@rm -f include/stdarg.h
-	@$(DIRUNLINK) include/arch/board
-	@$(DIRUNLINK) include/arch/chip
-	@$(DIRUNLINK) include/arch
-	@$(DIRUNLINK) $(ARCH_SRC)/board
-	@$(DIRUNLINK) $(ARCH_SRC)/chip
-	@$(DIRUNLINK) include/apps
+	$(Q) rm -f include/nuttx/config.h
+	$(Q) rm -f include/nuttx/version.h
+	$(Q) rm -f include/math.h
+	$(Q) rm -f include/stdarg.h
+	$(Q) $(DIRUNLINK) include/arch/board
+	$(Q) $(DIRUNLINK) include/arch/chip
+	$(Q) $(DIRUNLINK) include/arch
+	$(Q) $(DIRUNLINK) $(ARCH_SRC)/board
+	$(Q) $(DIRUNLINK) $(ARCH_SRC)/chip
+	$(Q) $(DIRUNLINK) include/apps
 
 # check_context
 #
@@ -426,7 +432,7 @@ clean_context:
 # configuration files have been installed and that NuttX is ready to be built.
 
 check_context:
-	@if [ ! -e ${TOPDIR}/.config -o ! -e ${TOPDIR}/Make.defs ]; then \
+	$(Q) if [ ! -e ${TOPDIR}/.config -o ! -e ${TOPDIR}/Make.defs ]; then \
 		echo "" ; echo "Nuttx has not been configured:" ; \
 		echo "  cd tools; ./configure.sh <target>" ; echo "" ; \
 		exit 1 ; \
@@ -440,53 +446,53 @@ check_context:
 # Possible kernel-mode builds
 
 lib/libklib$(LIBEXT): context
-	@$(MAKE) -C lib TOPDIR="$(TOPDIR)" libklib$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C lib TOPDIR="$(TOPDIR)" libklib$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 sched/libsched$(LIBEXT): context
-	@$(MAKE) -C sched TOPDIR="$(TOPDIR)" libsched$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C sched TOPDIR="$(TOPDIR)" libsched$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 $(ARCH_SRC)/libarch$(LIBEXT): context
-	@$(MAKE) -C $(ARCH_SRC) TOPDIR="$(TOPDIR)" libarch$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C $(ARCH_SRC) TOPDIR="$(TOPDIR)" libarch$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 net/libnet$(LIBEXT): context
-	@$(MAKE) -C net TOPDIR="$(TOPDIR)" libnet$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C net TOPDIR="$(TOPDIR)" libnet$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 fs/libfs$(LIBEXT): context
-	@$(MAKE) -C fs TOPDIR="$(TOPDIR)" libfs$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C fs TOPDIR="$(TOPDIR)" libfs$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 drivers/libdrivers$(LIBEXT): context
-	@$(MAKE) -C drivers TOPDIR="$(TOPDIR)" libdrivers$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C drivers TOPDIR="$(TOPDIR)" libdrivers$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 binfmt/libbinfmt$(LIBEXT): context
-	@$(MAKE) -C binfmt TOPDIR="$(TOPDIR)" libbinfmt$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C binfmt TOPDIR="$(TOPDIR)" libbinfmt$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 graphics/libgraphics$(LIBEXT): context
-	@$(MAKE) -C graphics TOPDIR="$(TOPDIR)" libgraphics$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C graphics TOPDIR="$(TOPDIR)" libgraphics$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 syscall/libstubs$(LIBEXT): context
-	@$(MAKE) -C syscall TOPDIR="$(TOPDIR)" libstubs$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C syscall TOPDIR="$(TOPDIR)" libstubs$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 # Possible user-mode builds
 
 lib/libulib$(LIBEXT): context
-	@$(MAKE) -C lib TOPDIR="$(TOPDIR)" libulib$(LIBEXT)
+	$(Q) $(MAKE) -C lib TOPDIR="$(TOPDIR)" libulib$(LIBEXT)
 
 libxx/liblibxx$(LIBEXT): context
-	@$(MAKE) -C libxx TOPDIR="$(TOPDIR)" liblibxx$(LIBEXT)
+	$(Q) $(MAKE) -C libxx TOPDIR="$(TOPDIR)" liblibxx$(LIBEXT)
 
 mm/libmm$(LIBEXT): context
-	@$(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE)
+	$(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE)
 
 $(APPDIR)/libapps$(LIBEXT): context
-	@$(MAKE) -C $(APPDIR) TOPDIR="$(TOPDIR)" libapps$(LIBEXT)
+	$(Q) $(MAKE) -C $(APPDIR) TOPDIR="$(TOPDIR)" libapps$(LIBEXT)
 
 syscall/libproxies$(LIBEXT): context
-	@$(MAKE) -C syscall TOPDIR="$(TOPDIR)" libproxies$(LIBEXT)
+	$(Q) $(MAKE) -C syscall TOPDIR="$(TOPDIR)" libproxies$(LIBEXT)
 
 # Possible non-kernel builds
 
 lib/liblib$(LIBEXT): context
-	@$(MAKE) -C lib TOPDIR="$(TOPDIR)" liblib$(LIBEXT)
+	$(Q) $(MAKE) -C lib TOPDIR="$(TOPDIR)" liblib$(LIBEXT)
 
 # pass1 and pass2
 #
@@ -502,46 +508,46 @@ pass1deps: context pass1dep $(USERLIBS)
 
 pass1: pass1deps
 ifeq ($(CONFIG_BUILD_2PASS),y)
-	@if [ -z "$(CONFIG_PASS1_BUILDIR)" ]; then \
+	$(Q) if [ -z "$(CONFIG_PASS1_BUILDIR)" ]; then \
 		echo "ERROR: CONFIG_PASS1_BUILDIR not defined"; \
 		exit 1; \
 	fi
-	@if [ ! -d "$(CONFIG_PASS1_BUILDIR)" ]; then \
+	$(Q) if [ ! -d "$(CONFIG_PASS1_BUILDIR)" ]; then \
 		echo "ERROR: CONFIG_PASS1_BUILDIR does not exist"; \
 		exit 1; \
 	fi
-	@if [ ! -f "$(CONFIG_PASS1_BUILDIR)/Makefile" ]; then \
+	$(Q) if [ ! -f "$(CONFIG_PASS1_BUILDIR)/Makefile" ]; then \
 		echo "ERROR: No Makefile in CONFIG_PASS1_BUILDIR"; \
 		exit 1; \
 	fi
-	@$(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" LINKLIBS="$(NUTTXLIBS)" USERLIBS="$(USERLIBS)" "$(CONFIG_PASS1_TARGET)"
+	$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" LINKLIBS="$(NUTTXLIBS)" USERLIBS="$(USERLIBS)" "$(CONFIG_PASS1_TARGET)"
 endif
 
 pass2deps: context pass2dep $(NUTTXLIBS)
 
 pass2: pass2deps
-	@$(MAKE) -C $(ARCH_SRC) TOPDIR="$(TOPDIR)" EXTRA_OBJS="$(EXTRA_OBJS)" LINKLIBS="$(NUTTXLIBS)" EXTRADEFINES=$(KDEFINE) $(BIN)
-	@if [ -w /tftpboot ] ; then \
+	$(Q) $(MAKE) -C $(ARCH_SRC) TOPDIR="$(TOPDIR)" EXTRA_OBJS="$(EXTRA_OBJS)" LINKLIBS="$(NUTTXLIBS)" EXTRADEFINES=$(KDEFINE) $(BIN)
+	$(Q) if [ -w /tftpboot ] ; then \
 		cp -f $(BIN) /tftpboot/$(BIN).${CONFIG_ARCH}; \
 	fi
 ifeq ($(CONFIG_RRLOAD_BINARY),y)
 	@echo "MK: $(BIN).rr"
-	@$(TOPDIR)/tools/mkimage.sh --Prefix $(CROSSDEV) $(BIN) $(BIN).rr
-	@if [ -w /tftpboot ] ; then \
+	$(Q) $(TOPDIR)/tools/mkimage.sh --Prefix $(CROSSDEV) $(BIN) $(BIN).rr
+	$(Q) if [ -w /tftpboot ] ; then \
 		cp -f $(BIN).rr /tftpboot/$\(BIN).rr.$(CONFIG_ARCH); \
 	fi
 endif
 ifeq ($(CONFIG_INTELHEX_BINARY),y)
 	@echo "CP: $(BIN).hex"
-	@$(OBJCOPY) $(OBJCOPYARGS) -O ihex $(BIN) $(BIN).hex
+	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex $(BIN) $(BIN).hex
 endif
 ifeq ($(CONFIG_MOTOROLA_SREC),y)
 	@echo "CP: $(BIN).srec"
-	@$(OBJCOPY) $(OBJCOPYARGS) -O srec $(BIN) $(BIN).srec
+	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec $(BIN) $(BIN).srec
 endif
 ifeq ($(CONFIG_RAW_BINARY),y)
 	@echo "CP: $(BIN).bin"
-	@$(OBJCOPY) $(OBJCOPYARGS) -O binary $(BIN) $(BIN).bin
+	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary $(BIN) $(BIN).bin
 endif
 
 # $(BIN)
@@ -568,12 +574,12 @@ download: $(BIN)
 # pass2dep: Create pass2 build dependencies
 
 pass1dep: context
-	@for dir in $(USERDEPDIRS) ; do \
+	$(Q) for dir in $(USERDEPDIRS) ; do \
 		$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" depend ; \
 	done
 
 pass2dep: context
-	@for dir in $(KERNDEPDIRS) ; do \
+	$(Q) for dir in $(KERNDEPDIRS) ; do \
 		$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" EXTRADEFINES=$(KDEFINE) depend; \
 	done
 
@@ -585,13 +591,13 @@ pass2dep: context
 # misc/tools/README.txt for additional information.
 
 config:
-	@APPSDIR=${CONFIG_APPS_DIR} conf Kconfig
+	$(Q) APPSDIR=${CONFIG_APPS_DIR} conf Kconfig
 
 oldconfig:
-	@APPSDIR=${CONFIG_APPS_DIR} conf --oldconfig Kconfig
+	$(Q) APPSDIR=${CONFIG_APPS_DIR} conf --oldconfig Kconfig
 
 menuconfig:
-	@APPSDIR=${CONFIG_APPS_DIR} mconf Kconfig
+	$(Q) APPSDIR=${CONFIG_APPS_DIR} mconf Kconfig
 
 # export
 #
@@ -602,7 +608,7 @@ menuconfig:
 # that the archiver is 'ar'
 
 export: pass2deps
-	@tools/mkexport.sh -w$(WINTOOL) -t "$(TOPDIR)" -l "$(NUTTXLIBS)"
+	$(Q) tools/mkexport.sh -w$(WINTOOL) -t "$(TOPDIR)" -l "$(NUTTXLIBS)"
 
 # General housekeeping targets:  dependencies, cleaning, etc.
 #
@@ -617,23 +623,23 @@ export: pass2deps
 depend: pass1dep pass2dep
 
 subdir_clean:
-	@for dir in $(CLEANDIRS) ; do \
+	$(Q) for dir in $(CLEANDIRS) ; do \
 		if [ -e $$dir/Makefile ]; then \
 			$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" clean ; \
 		fi \
 	done
-	@$(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" clean
-	@$(MAKE) -C mm -f Makefile.test TOPDIR="$(TOPDIR)" clean
+	$(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" clean
+	$(Q) $(MAKE) -C mm -f Makefile.test TOPDIR="$(TOPDIR)" clean
 ifeq ($(CONFIG_BUILD_2PASS),y)
-	@$(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" clean
+	$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" clean
 endif
 
 clean: subdir_clean
-	@rm -f $(BIN) nuttx.* mm_test *.map _SAVED_APPS_config *~
-	@rm -f nuttx-export*
+	$(Q) rm -f $(BIN) nuttx.* mm_test *.map _SAVED_APPS_config *~
+	$(Q) rm -f nuttx-export*
 
 subdir_distclean:
-	@for dir in $(CLEANDIRS) ; do \
+	$(Q) for dir in $(CLEANDIRS) ; do \
 		if [ -e $$dir/Makefile ]; then \
 			$(MAKE) -C $$dir TOPDIR="$(TOPDIR)" distclean ; \
 		fi \
@@ -641,9 +647,9 @@ subdir_distclean:
 
 distclean: clean subdir_distclean clean_context
 ifeq ($(CONFIG_BUILD_2PASS),y)
-	@$(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" distclean
+	$(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" distclean
 endif
-	@rm -f Make.defs setenv.sh .config .config.old
+	$(Q) rm -f Make.defs setenv.sh .config .config.old
 
 # Application housekeeping targets.  The APPDIR variable refers to the user
 # application directory.  A sample apps/ directory is included with NuttX,
@@ -663,19 +669,19 @@ endif
 
 apps_clean:
 ifneq ($(APPDIR),)
-	@$(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" clean
+	$(Q) $(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" clean
 endif
 
 apps_distclean:
 ifneq ($(APPDIR),)
-	@if [ -r "$(TOPDIR)/$(APPDIR)/.config" ]; then \
+	$(Q) if [ -r "$(TOPDIR)/$(APPDIR)/.config" ]; then \
 		cp "$(TOPDIR)/$(APPDIR)/.config" _SAVED_APPS_config || \
 			{ echo "Copy of $(APPDIR)/.config failed" ; exit 1 ; } \
 	else \
 		rm -f _SAVED_APPS_config; \
 	fi
-	@$(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" distclean
-	@if [ -r _SAVED_APPS_config ]; then \
+	$(Q) $(MAKE) -C "$(TOPDIR)/$(APPDIR)" TOPDIR="$(TOPDIR)" distclean
+	$(Q) if [ -r _SAVED_APPS_config ]; then \
 		mv _SAVED_APPS_config "$(TOPDIR)/$(APPDIR)/.config" || \
 			{ echo "Copy of _SAVED_APPS_config failed" ; exit 1 ; } \
 	fi
diff --git a/nuttx/drivers/lcd/ug-2864ambag01.c b/nuttx/drivers/lcd/ug-2864ambag01.c
index aa50abaedc..e133f39010 100644
--- a/nuttx/drivers/lcd/ug-2864ambag01.c
+++ b/nuttx/drivers/lcd/ug-2864ambag01.c
@@ -153,6 +153,8 @@
 #  undef CONFIG_LCD_PORTRAIT
 #  undef CONFIG_LCD_RLANDSCAPE
 #  undef CONFIG_LCD_RPORTRAIT
+#elif defined(CONFIG_LCD_RLANDSCAPE)
+#  warning "Reverse landscape mode is untested and, hence, probably buggy"
 #endif
 
 /* SH1101A Commands *******************************************************************/
@@ -574,7 +576,11 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
 
   fbmask  = 1 << (row & 7);
   fbptr   = &priv->fb[page * UG2864AMBAG01_XRES + col];
+#ifdef CONFIG_LCD_RLANDSCAPE
+  ptr     = fbptr + pixlen - 1;
+#else
   ptr     = fbptr;
+#endif
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -585,6 +591,16 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
     {
       /* Set or clear the corresponding bit */
 
+#ifdef CONFIG_LCD_RLANDSCAPE
+      if ((*buffer & usrmask) != 0)
+        {
+          *ptr-- |= fbmask;
+        }
+      else
+        {
+          *ptr-- &= ~fbmask;
+        }
+#else
       if ((*buffer & usrmask) != 0)
         {
           *ptr++ |= fbmask;
@@ -593,6 +609,7 @@ static int ug2864ambag01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_
         {
           *ptr++ &= ~fbmask;
         }
+#endif
 
       /* Inc/Decrement to the next source pixel */
 
@@ -748,7 +765,11 @@ static int ug2864ambag01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buf
    */
 
   fbmask  = 1 << (row & 7);
+#ifdef CONFIG_LCD_RLANDSCAPE
+  fbptr   = &priv->fb[page * (UG2864AMBAG01_XRES-1) + col + pixlen];
+#else
   fbptr   = &priv->fb[page * UG2864AMBAG01_XRES + col];
+#endif
 #ifdef CONFIG_NX_PACKEDMSFIRST
   usrmask = MS_BIT;
 #else
@@ -760,7 +781,11 @@ static int ug2864ambag01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buf
     {
       /* Set or clear the corresponding bit */
       
+#ifdef CONFIG_LCD_RLANDSCAPE
+      uint8_t byte = *fbptr--;
+#else
       uint8_t byte = *fbptr++;
+#endif
       if ((byte & fbmask) != 0)
         {
           *buffer |= usrmask;
diff --git a/nuttx/tools/configure.sh b/nuttx/tools/configure.sh
index 3b68fe3f62..1cba7805f6 100755
--- a/nuttx/tools/configure.sh
+++ b/nuttx/tools/configure.sh
@@ -100,18 +100,36 @@ if [ ! -d "${configpath}" ]; then
   exit 3
 fi
 
-if [ ! -r "${configpath}/Make.defs" ]; then
-  echo "File \"${configpath}/Make.defs\" does not exist"
+src_makedefs="${configpath}/Make.defs"
+dest_makedefs="${TOPDIR}/Make.defs"
+
+if [ ! -r "${src_makedefs}" ]; then
+  echo "File \"${src_makedefs}\" does not exist"
   exit 4
 fi
 
-if [ ! -r "${configpath}/setenv.sh" ]; then
-  echo "File \"${configpath}/setenv.sh\" does not exist"
-  exit 5
+src_setenv="${configpath}/setenv.sh"
+unset have_setenv
+
+if [ -r "${src_setenv}" ]; then
+  dest_setenv=${TOPDIR}/setenv.sh
+  have_setenv=y
+else
+  src_setenv="${configpath}/setenv.bat"
+  if [ -r "${src_setenv}" ]; then
+    dest_setenv=${TOPDIR}/setenv.bat
+    have_setenv=y
+  else
+    unset src_setenv
+  fi
 fi
 
-if [ ! -r "${configpath}/defconfig" ]; then
-  echo "File \"${configpath}/defconfig\" does not exist"
+src_config="${configpath}/defconfig"
+tmp_config="${TOPDIR}/.configX"
+dest_config="${TOPDIR}/.config"
+
+if [ ! -r "${src_config}" ]; then
+  echo "File \"${src_config}\" does not exist"
   exit 6
 fi
 
@@ -121,11 +139,11 @@ fi
 # (2) The CONFIG_APPS_DIR to see if there is a configured location for the
 #     application directory.
 
-newconfig=`grep CONFIG_NUTTX_NEWCONFIG= "${configpath}/defconfig" | cut -d'=' -f2`
+newconfig=`grep CONFIG_NUTTX_NEWCONFIG= "${src_config}" | cut -d'=' -f2`
 
 defappdir=y
 if [ -z "${appdir}" ]; then
-  quoted=`grep "^CONFIG_APPS_DIR=" "${configpath}/defconfig" | cut -d'=' -f2`
+  quoted=`grep "^CONFIG_APPS_DIR=" "${src_config}" | cut -d'=' -f2`
   if [ ! -z "${appdir}" ]; then
     appdir=`echo ${quoted} | sed -e "s/\"//g"`
     defappdir=n
@@ -167,24 +185,26 @@ fi
 
 # Okay... Everything looks good.  Setup the configuration
 
-install -C "${configpath}/Make.defs" "${TOPDIR}/." || \
-  { echo "Failed to copy ${configpath}/Make.defs" ; exit 7 ; }
-install -C "${configpath}/setenv.sh" "${TOPDIR}/." || \
-  { echo "Failed to copy ${configpath}/setenv.sh" ; exit 8 ; }
-chmod 755 "${TOPDIR}/setenv.sh"
-install -C "${configpath}/defconfig" "${TOPDIR}/.configX" || \
-  { echo "Failed to copy ${configpath}/defconfig" ; exit 9 ; }
+install -C "${src_makedefs}" "${dest_makedefs}" || \
+  { echo "Failed to copy \"${src_makedefs}\"" ; exit 7 ; }
+if [ "X${have_setenv}" = "Xy" ]; then
+  install -C "${src_setenv}" "${dest_setenv}" || \
+    { echo "Failed to copy ${src_setenv}" ; exit 8 ; }
+  chmod 755 "${dest_setenv}"
+fi
+install -C "${src_config}" "${tmp_config}" || \
+  { echo "Failed to copy \"${src_config}\"" ; exit 9 ; }
 
 # If we did not use the CONFIG_APPS_DIR that was in the defconfig config file,
 # then append the correct application information to the tail of the .config
 # file
 
 if [ "X${defappdir}" = "Xy" ]; then
-  sed -i -e "/^CONFIG_APPS_DIR/d" "${TOPDIR}/.configX"
-  echo "" >> "${TOPDIR}/.configX"
-  echo "# Application configuration" >> "${TOPDIR}/.configX"
-  echo "" >> "${TOPDIR}/.configX"
-  echo "CONFIG_APPS_DIR=\"$appdir\"" >> "${TOPDIR}/.configX"
+  sed -i -e "/^CONFIG_APPS_DIR/d" "${tmp_config}"
+  echo "" >> "${tmp_config}"
+  echo "# Application configuration" >> "${tmp_config}"
+  echo "" >> "${tmp_config}"
+  echo "CONFIG_APPS_DIR=\"$appdir\"" >> "${tmp_config}"
 fi 
 
 # Copy appconfig file.  The appconfig file will be copied to ${appdir}/.config
@@ -203,6 +223,6 @@ fi
 # install the final .configX only if it differs from any existing
 # .config file.
 
-install -C "${TOPDIR}/.configX" "${TOPDIR}/.config"
-rm -f "${TOPDIR}/.configX"
+install -C "${tmp_config}" "${dest_config}"
+rm -f "${tmp_config}"