diff --git a/clib/Makefile b/clib/Makefile
new file mode 100644
index 0000000..9786d22
--- /dev/null
+++ b/clib/Makefile
@@ -0,0 +1,6 @@
+libwally.so: interpolate.o Makefile
+	g++ interpolate.o -shared -o libwally.so
+
+interpolate.o: interpolate.cpp
+	g++ -c -Wall -std=c++11 -fPIC -O3 interpolate.cpp -o interpolate.o
+