diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..f5cf5cb
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -eu
+
+if [ ! -d build ]
+then
+	mkdir build
+	cd build
+	cmake ..
+else
+	cd build
+fi
+
+make
+