diff --git a/core/build/make-svn-rev-header-svn13.py b/core/build/make-svn-rev-header-svn13.py
new file mode 100644
index 000000000..70073144c
--- /dev/null
+++ b/core/build/make-svn-rev-header-svn13.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+# This file is used to automatically extract the SVN revision number and
+# create a C include file.
+
+#includes
+from os.path import isfile
+from sys import exit
+
+#Get our SVN entries file - this has the rev # in it
+svnfile=open('../.svn/entries', 'r')
+
+svncontent=svnfile.readlines(10)
+
+revision=svncontent[3]
+
+#Write out our data
+if isfile("svn-revision.h"):
+    infile = file("svn-revision.h", "r")
+    for ln in infile:
+        if ln == "#define BUILD_SVN_REVISION " + revision + "\n":
+            infile.close()
+            exit()
+
+outfile = file("svn-revision.h", "w+")
+outfile.write("// This file is automatically generated by make-svn-rev-header.py\n")
+outfile.write("// Do not modify or add to revision control\n\n")
+outfile.write("#define BUILD_SVN_REVISION " + revision + "\n")
+outfile.close()