diff --git a/Makefile b/Makefile
index d1980e0..7bd1bc3 100644
--- a/Makefile
+++ b/Makefile
@@ -55,6 +55,21 @@ ASMFLAGS+=
 # Add any arguments you want passed to the linker to this variable:
 LDFLAGS+=
 
+# If you want to copy one or more files or directories to the target disk
+# image, add the root directory to this variable.  Any directories under
+# the source directory which don't exist in the target disk image will be
+# created.  All files will be copied from the source to the target using
+# the same path from the source.
+#
+# For example, if you set COPYDIRS to dir and in your project you have
+# the following files:
+#     dir/System/mySystemFile
+#     dir/newDir/anotherFile
+# Then, during the copy phase, mySystemFile will be copied into the System
+# folder and a folder newDir will be created and anotherFile will be copied
+# into there.
+COPYDIRS=
+
 # By default, the build expects that you have GSplus in the path:
 # 	/Applications/GSplus.app/Contents/MacOS/gsplus
 # If you have it in a different location, specify that here.
diff --git a/make/createDiskImage b/make/createDiskImage
index 9265355..6583071 100755
--- a/make/createDiskImage
+++ b/make/createDiskImage
@@ -5,15 +5,23 @@ MOUNTDIR=/tmp/a2gs_mount.$$
 TMPDISKIMAGE=/tmp/a2gs_diskimage_$$.2mg
 TEMPLATEDISKIMAGE=make/system601.2mg
 
-if [ $# != 3 ]
+if [ $# -lt 3 ]
 then
     echo USAGE: $0 diskimage file directory
     exit 1
 fi
 
 DISKIMAGE="$1"
-FILE="$2"
-DEST="${MOUNTDIR}/$3"
+shift
+
+FILE="$1"
+shift
+
+DISKIMAGEDEST="$1"
+shift
+DEST="${MOUNTDIR}/${DISKIMAGEDEST}"
+
+COPYDIRS=$*
 
 cleanupAndExit()
 {
@@ -58,6 +66,29 @@ then
     cleanupAndExit
 fi
 
+OLDDIR=`pwd`
+for COPYDIR in $COPYDIRS
+do
+    cd "$COPYDIR"
+    if [ $? != 0 ]
+    then
+        echo Unable to find $COPYDIR
+        cleanupAndExit
+    fi
+
+    find . -print | while read FILEORDIR
+    do
+        if [ -d "$FILEORDIR" ]
+        then
+            mkdir -p "${MOUNTDIR}/$FILEORDIR"
+        elif [ -f "$FILEORDIR" ]
+        then
+            cp "$FILEORDIR" "${MOUNTDIR}/$FILEORDIR"
+        fi
+    done
+    cd "$OLDDIR"
+done
+
 umount "$MOUNTDIR"
 if [ $? != 0 ]
 then
diff --git a/make/tail.mk b/make/tail.mk
index 3dc7c2c..c7be210 100644
--- a/make/tail.mk
+++ b/make/tail.mk
@@ -123,7 +123,7 @@ $(PGM): $(REZ_OBJS)
 endif
 
 $(DISKIMAGE): $(PGM)
-	make/createDiskImage "$(DISKIMAGE)" "$(PGM)" "$(DISKIMAGEDEST)"
+	make/createDiskImage "$(DISKIMAGE)" "$(PGM)" "$(DISKIMAGEDEST)" $(COPYDIRS)
 
 execute: $(EXECTARGET)