--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/mk-component.sh	Fri May 15 02:06:09 2020 +0000
@@ -0,0 +1,90 @@
+#!/bin/sh
+
+if [ $# != 1 ]
+then
+	echo "usage: $0 component-lib" 1>&2
+	exit 1
+fi
+
+LIBNAME="$1"
+recipe_file="components/$1"
+
+if [ ! -f "$recipe_file" ]
+then
+	echo "Error: $recipe_file not found" 1>&2
+	exit 1
+fi
+
+if [ -z "$BUILD_DIR" ]
+then
+	echo "Error: BUILD_DIR= must be passed via environment" 1>&2
+	exit 1
+fi
+
+set -e
+
+mkdir -p $BUILD_DIR/$LIBNAME
+
+# beginning of the Makefile
+echo "all:	$LIBNAME.a" > $BUILD_DIR/$LIBNAME/Makefile
+echo >> $BUILD_DIR/$LIBNAME/Makefile
+
+# shell functions to be used in the recipes
+
+asm_file() {
+	if [ $# != 1 ]
+	then
+		echo "Error: asm_file takes 1 argument" 1>&2
+		exit 1
+	fi
+	objname=`basename "$1" .S`.o
+	helpers/makeline dep $objname "$1" >> $BUILD_DIR/$LIBNAME/Makefile
+	helpers/makeline cmd arm-elf-gcc -c ${ASMFLAGS} ${CPPFLAGS} "$1" \
+		>> $BUILD_DIR/$LIBNAME/Makefile
+	echo >> $BUILD_DIR/$LIBNAME/Makefile
+	OBJS="$OBJS $objname"
+}
+
+c_file() {
+	if [ $# != 1 ]
+	then
+		echo "Error: c_file takes 1 argument" 1>&2
+		exit 1
+	fi
+	objname=`basename "$1" .c`.o
+	helpers/makeline dep $objname "$1" >> $BUILD_DIR/$LIBNAME/Makefile
+	helpers/makeline cmd arm-elf-gcc -c ${CFLAGS_gcc} ${CPPFLAGS} "$1" \
+		>> $BUILD_DIR/$LIBNAME/Makefile
+	echo >> $BUILD_DIR/$LIBNAME/Makefile
+	OBJS="$OBJS $objname"
+}
+
+cfile_symlink() {
+	if [ $# != 1 ]
+	then
+		echo "Error: cfile_symlink takes 1 argument" 1>&2
+		exit 1
+	fi
+	localcopy=`basename "$1"`
+	echo "$localcopy:" >> $BUILD_DIR/$LIBNAME/Makefile
+	echo "	ln -s $1 ." >> $BUILD_DIR/$LIBNAME/Makefile
+	echo >> $BUILD_DIR/$LIBNAME/Makefile
+	c_file $localcopy
+}
+
+# invoke the recipe
+
+COMPILER=gcc
+SRC=../../src
+OBJS=
+MMI=0
+. "$recipe_file"
+
+# finish the Makefile
+
+helpers/makeline dep $LIBNAME.a ${OBJS} >> $BUILD_DIR/$LIBNAME/Makefile
+echo '	arm-elf-ar rcu $@ $^' >> $BUILD_DIR/$LIBNAME/Makefile
+echo '	arm-elf-ranlib $@' >> $BUILD_DIR/$LIBNAME/Makefile
+echo >> $BUILD_DIR/$LIBNAME/Makefile
+echo 'clean:' >> $BUILD_DIR/$LIBNAME/Makefile
+echo '	rm -f *.[oa] *.c' >> $BUILD_DIR/$LIBNAME/Makefile