diff --git a/.abf.yml b/.abf.yml
new file mode 100644
index 0000000..c2f4553
--- /dev/null
+++ b/.abf.yml
@@ -0,0 +1,2 @@
+sources:
+  "cmake-2.8.9.tar.gz": b96663c0757a5edfbddc410aabf7126a92131e2b