--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/configure.sh	Sat Oct 01 02:48:53 2016 +0000
@@ -0,0 +1,180 @@
+#!/bin/sh
+
+set -e
+
+if [ ! -f configure.sh ]
+then
+	echo "This script needs to be run from the top of the source tree" 1>&2
+	exit 1
+fi
+
+if [ ! -f helpers/makeline ]
+then
+	echo "Please run make in the helpers directory first" 1>&2
+	exit 1
+fi
+
+# start looking at our invokation line
+
+if [ "$1" == --clean ]
+then
+	clean_flag=1
+	shift
+else
+	clean_flag=0
+fi
+
+if [ $# -lt 2 ]
+then
+	echo "usage: $0 [--clean] target config [vars]" 1>&2
+	exit 1
+fi
+
+TARGET="$1"
+CONFIG="$2"
+
+if [ ! -f "targets/$TARGET.conf" -o ! -f "targets/$TARGET.h" ]
+then
+	echo "Error: target $TARGET not known" 1>&2
+	exit 1
+fi
+
+if [ ! -f "configs/$CONFIG" ]
+then
+	echo "Error: configuration $CONFIG not known" 1>&2
+	exit 1
+fi
+
+. "targets/$TARGET.conf"
+
+BUILD_DIR="build-$TARGET-$CONFIG"
+USE_STR2IND=0
+
+# allow the user to override these defaults
+
+shift
+shift
+while [ $# != 0 ]
+do
+	eval "$1"
+	shift
+done
+
+echo "Building configuration $CONFIG for target $TARGET in $BUILD_DIR"
+
+if [ "$clean_flag" = 1 ]
+then
+	rm -rf $BUILD_DIR
+fi
+mkdir -p $BUILD_DIR
+
+: > $BUILD_DIR/lcfgen
+
+# shell functions to be used in the configuration recipe
+
+build_lib() {
+	if [ $# -lt 1 -o $# -gt 2 ]
+	then
+		echo "Error: build_lib takes 1 or 2 arguments" 1>&2
+		exit 1
+	fi
+	scripts/mk-component.sh "$1" "$2"
+	SUBDIR="$SUBDIR $1"
+	current_lib=$1/$1.lib
+	LIBS="$LIBS $current_lib"
+}
+
+blob_lib() {
+	if [ $# != 1 ]
+	then
+		echo "Error: blob_lib takes 1 argument" 1>&2
+		exit 1
+	fi
+	current_lib="../$1"
+	LIBS="$LIBS $current_lib"
+}
+
+lib_link_magic() {
+	if [ $# != 1 ]
+	then
+		echo "Error: lib_link_magic takes 1 argument" 1>&2
+		exit 1
+	fi
+	if [ -z "$current_lib" ]
+	then
+	  echo "Error: lib_link_magic called before build_lib or blob_lib" 1>&2
+	  exit 1
+	fi
+	SPECIAL_LINK_LIBS="$SPECIAL_LINK_LIBS $current_lib"
+	echo "$1" >> $BUILD_DIR/lcfgen
+}
+
+# invoke the configuration recipe
+
+export BUILD_DIR TARGET USE_STR2IND
+
+SUBDIR=
+LIBS=
+SPECIAL_LINK_LIBS=
+current_lib=
+
+. "configs/$CONFIG"
+
+# str2ind magic
+
+if [ -z "$str2ind_blobs_used" ]
+then
+	echo "Error: configs/$CONFIG must set str2ind_blobs_used" 1>&2
+	exit 1
+fi
+
+if [ "$str2ind_blobs_used" = 1 ]
+then
+	cp blobs/str2ind.tab $BUILD_DIR
+fi
+
+if [ "$str2ind_blobs_used" = 0 -a "$USE_STR2IND" = 0 ]
+then
+	echo 'char *str2ind_version = "&0";' > $BUILD_DIR/str2ind.c
+fi
+
+# generate the top level Makefile!
+
+helpers/makeline def SUBDIR $SUBDIR > $BUILD_DIR/Makefile
+echo >> $BUILD_DIR/Makefile
+helpers/makeline def LIBS $LIBS >> $BUILD_DIR/Makefile
+echo >> $BUILD_DIR/Makefile
+helpers/makeline def SPECIAL_LINK_LIBS $SPECIAL_LINK_LIBS >> $BUILD_DIR/Makefile
+echo >> $BUILD_DIR/Makefile
+helpers/makeline def LINK_SCRIPT_SRC ../$LINK_SCRIPT_SRC >> $BUILD_DIR/Makefile
+echo >> $BUILD_DIR/Makefile
+
+cat makefile-frags/first-part >> $BUILD_DIR/Makefile
+
+if [ "$USE_STR2IND" = 1 ]
+then
+	cat makefile-frags/str2ind-tab-depend >> $BUILD_DIR/Makefile
+fi
+
+if [ "$str2ind_blobs_used" = 1 -o "$USE_STR2IND" = 1 ]
+then
+	cat makefile-frags/str2ind-c-gen >> $BUILD_DIR/Makefile
+fi
+
+cat makefile-frags/link-steps >> $BUILD_DIR/Makefile
+
+cat makefile-frags/clean-always >> $BUILD_DIR/Makefile
+if [ "$str2ind_blobs_used" = 0 ]
+then
+	echo '	rm -f str2ind.tab str2ind.log' >> $BUILD_DIR/Makefile
+fi
+if [ "$str2ind_blobs_used" = 1 -o "$USE_STR2IND" = 1 ]
+then
+	echo '	rm -f str2ind.c' >> $BUILD_DIR/Makefile
+fi
+echo >> $BUILD_DIR/Makefile
+echo 'FRC:' >> $BUILD_DIR/Makefile
+
+# All done!
+
+echo "Run make in $BUILD_DIR to compile the firmware"