Makefile: shadow the phsource and dictsource directories instead of copying them

Makefile

@@ -1,4 +1,4 @@
-PREFIX=/usr
+REFIX=/usr
 BINDIR=$(PREFIX)/bin
 DATADIR=$(PREFIX)/share/espeak-data
 
@@ -45,8 +45,8 @@ espeak-phoneme-data:
 
 espeak-data-dir:
 	rm -rf espeak-data/dictsource espeak-data/phsource espeak-data/phondata-manifest
-	cp -a phsource espeak-data/phsource
-	cp -a dictsource espeak-data/dictsource
+	./shadowdir $(PWD)/phsource $(PWD)/espeak-data/phsource
+	./shadowdir $(PWD)/dictsource $(PWD)/espeak-data/dictsource
 
 espeak-data: src/espeakedit espeak-data-dir
 	rm -rf $(HOME)/espeak-data

shadowdir

@@ -0,0 +1,22 @@
+#!/usr/bin/python
+#
+# Copyright (C) 2011 Reece H. Dunn
+# Licence: GPLv3
+#
+# A script for shadowing a directory tree to another (equivalent to lndir).
+
+import sys
+import os
+
+def shadow(src, dst):
+	if not os.path.exists(dst):
+		os.makedirs(dst)
+	for fn in os.listdir(src):
+		srcpath = os.path.join(src, fn)
+		dstpath = os.path.join(dst, fn)
+		if os.path.isdir(srcpath):
+			shadow(srcpath, dstpath)
+		else:
+			os.symlink(srcpath, dstpath)
+
+shadow(sys.argv[1], sys.argv[2])