diff --git a/lib/irrlicht/README.stk b/lib/irrlicht/README.stk
new file mode 100644
index 000000000..83a4f096d
--- /dev/null
+++ b/lib/irrlicht/README.stk
@@ -0,0 +1,5 @@
+This is a copy of the irrlicht 1.8, r4350.
+We need to have our own version to change some #defines for stk.
+The script 'update' will update this branch automatically from
+the correspdonding irrlicht releases/1.8 branch (the latest updated
+version is in the file current_version).
diff --git a/lib/irrlicht/current_version b/lib/irrlicht/current_version
new file mode 100644
index 000000000..28bb8fc33
--- /dev/null
+++ b/lib/irrlicht/current_version
@@ -0,0 +1 @@
+4350
diff --git a/lib/irrlicht/update b/lib/irrlicht/update
new file mode 100755
index 000000000..0128e6d76
--- /dev/null
+++ b/lib/irrlicht/update
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+echo "Getting latest irrlicht 1.8 version number:"
+latest_version=$( svn info  https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/branches/releases/1.8 \
+                 | awk '/Last Changed Rev:/ {print $4;}')
+echo "Revision $latest_version"
+
+current_version=$( cat current_version)
+echo "Current irrlicht version: $current_version"
+if [ $current_version == $latest_version ]; then
+    echo "No changes, exiting."
+    exit
+fi
+echo "Applying patch from $current_version to $latest_version:"
+
+svn diff -r $current_version:$latest_version https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/branches/releases/1.8 \
+      | patch -p0
+
+echo $latest_version>current_version
+echo "Done"
+