Beginning of logic that will, hopefully, all me to build applications against a NuttX export package (vs. the nuttx/ source tree).

Makefile

@@ -48,8 +48,8 @@ APPDIR = ${shell pwd}
 #   list can be extended by the .config file as well.
 
 CONFIGURED_APPS =
-SUBDIRS  = examples graphics interpreters modbus builtin nshlib netutils
-SUBDIRS += platform system
+SUBDIRS  = examples graphics interpreters modbus builtin import nshlib
+SUBDIRS += netutils platform system
 
 # The list of configured directories is derived from NuttX configuration
 # file:  The selected applications are enabled settings in the configuration

import/Makefile

@@ -0,0 +1,68 @@
+############################################################################
+# apps/import/Makefile
+#
+#   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/.config
+
+Q ?= @
+
+# Sub-directories from the NuttX export package
+
+SUBDIRS = arch build include libs startup tmp
+
+# DELDIR - Delete one directory
+
+ifeq ($(CONFIG_WINDOWS_NATIVE),y)
+define DELDIR
+  $(Q) if exist $(1) (rmdir /q /s $(1))
+endef
+else
+define DELDIR
+  $(Q) rm -rf $(1)
+endef
+endif
+
+all: nothing
+.PHONY: nothing context depend clean distclean
+
+nothing:
+
+context:
+
+depend:
+
+clean:
+
+distclean:
+	$(foreach SDIR, $(SUBDIRS), $(call DELDIR, $(SDIR)))

tools/mkimport.sh

@@ -0,0 +1,172 @@
+#!/bin/bash
+# apps/tools/mkimport.sh
+#
+#   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+# Get the input parameter list
+
+USAGE="USAGE: $0 [-d] [-z] [-l <ext>] -x <export-path>"
+unset EXPORT
+unset TGZ
+LIBEXT=.a
+
+while [ ! -z "$1" ]; do
+	case $1 in
+		-d )
+			set -x
+			;;
+		-l )
+			shift
+			LIBEXT=$1
+			;;
+		-x )
+			shift
+			EXPORT=$1
+			;;
+		-z )
+			TGZ=y
+			;;
+		-h )
+			echo $USAGE
+			exit 0
+			;;
+		* )
+			echo "ERROR: Unrecognized argument: $1"
+			echo $USAGE
+			exit 1
+			;;
+		esac
+	shift
+done
+
+# Check arguments
+
+if [ -z "${EXPORT}" ]; then
+	echo "ERROR: Missing required argument"
+	echo $USAGE
+	exit 1
+fi
+
+if [ ! -f "${EXPORT}" ]; then
+	echo "ERROR: Export file does not exist at ${EXPORT}"
+	exit 1
+fi
+
+# Orient ourself
+
+if [ ! -d import ]; then
+	cd .. || { echo "ERROR: cd .. failed"; exit 1; }
+	if [ ! -d import ]; then
+		echo "ERROR: This script must be executed from the top-level apps/ directory"
+		exit 1
+	fi
+fi
+
+# Set up paths
+
+WD=${PWD}
+IMPORTDIR=${WD}/import
+DARCHDIR=${IMPORTDIR}/arch
+DBUILDDIR=${IMPORTDIR}/build
+DINCDIR=${IMPORTDIR}/include
+DLIBDIR=${IMPORTDIR}/libs
+DSTARTDIR=${IMPORTDIR}/startup
+TMPDIR=${IMPORTDIR}/tmp
+DALLDIRS="${DARCHDIR} ${DBUILDDIR} ${DINCDIR} ${DLIBDIR} ${DSTARTDIR} ${TMPDIR}"
+
+# Remove any old import directories
+
+rm -rf ${DALLDIRS}
+
+# Create the temporary directory
+
+mkdir ${TMPDIR} || \
+	{ echo "ERROR: Failed to create ${TMPDIR}"; exit 1; }
+
+# Unpack the export package into the temporary directory
+
+cd ${TMPDIR} || \
+	{ echo "ERROR: Failed to cd to ${TMPDIR}"; exit 1; }
+
+if [ "X${TGZ}" == "Xy" ]; then
+	tar zxf ${EXPORT} || \
+		{ echo "ERROR: tar zxf ${EXPORT} failed"; exit 1; }
+else
+	unzip ${EXPORT} || \
+		{ echo "ERROR: unzip ${EXPORT} failed"; exit 1; }
+fi
+
+EXPORTDIR=`ls`
+
+if [ -z "${EXPORTDIR}" ]; then
+	echo "ERROR: Nothing was unpacked"
+	exit 1
+fi
+
+if [ ! -d "${EXPORTDIR}" ]; then
+	echo "ERROR: No directory found after unpacking"
+	exit 1
+fi
+
+SARCHDIR=${EXPORTDIR}/arch
+SBUILDDIR=${EXPORTDIR}/build
+SINCDIR=${EXPORTDIR}/include
+SLIBDIR=${EXPORTDIR}/libs
+SSTARTDIR=${EXPORTDIR}/startup
+
+unset SALLDIRS
+if [ -d ${SARCHDIR} ]; then
+	SALLDIRS="${SALLDIRS} ${SARCHDIR}"
+fi
+if [ -d ${SBUILDDIR} ]; then
+	SALLDIRS="${SALLDIRS} ${SBUILDDIR}"
+fi
+if [ -d ${SINCDIR} ]; then
+	SALLDIRS="${SALLDIRS} ${SINCDIR}"
+fi
+if [ -d ${SLIBDIR} ]; then
+	SALLDIRS="${SALLDIRS} ${SLIBDIR}"
+fi
+if [ -d ${SLIBDIR} ]; then
+	SALLDIRS="${SALLDIRS} ${SSTARTDIR}"
+fi
+
+# Move all of the exported directories in place in the import directory
+
+mv ${SALLDIRS} ${IMPORTDIR}/. || \
+	{ echo "ERROR: Failed to move ${SALLDIRS} to ${IMPORTDIR}"; exit 1; }
+
+# Finally, remove the temporary directory
+
+cd ${WD} || { echo "ERROR: Failed to cd to ${WD}"; exit 1; }
+
+rm -rf ${TMPDIR}