Fix conditional compilation guards

examples/release_mode.rs

@@ -0,0 +1,19 @@
+extern crate qadapt;
+
+use qadapt::allocate_panic;
+use qadapt::QADAPT;
+
+#[global_allocator]
+static Q: QADAPT = QADAPT;
+
+#[allocate_panic]
+fn does_allocate() -> Box<u8> {
+    Box::new(0)
+}
+
+fn main() {
+    // If you were to run `cargo run --example release_mode`, this program blows up.
+    // If, however, you ran `cargo run --release --example release_mode`,
+    // nothing interesting will happen.
+    does_allocate();
+}