From d02c31309985cbae8af4ea0f61272c036737a639 Mon Sep 17 00:00:00 2001
From: "Tobin C. Harding" <me@tobin.cc>
Date: Fri, 1 Jul 2022 10:54:34 +1000
Subject: [PATCH] Explicitly do not support 16 bit architectures

We cast `u32` to `usize` in a bunch of places, this will cause
strange behaviour because of truncation on 16 bit architectures.

Add a compile time check to explicitly not support 16 bit architectures.
---
 src/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index dd0888624..69713728e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -90,6 +90,11 @@
 #![deny(unused_imports)]
 #![deny(missing_docs)]
 
+#[cfg(target_pointer_width = "16")]
+compile_error!(
+    "rust-miniscript currently only supports architectures with pointers wider than 16 bits"
+);
+
 pub use bitcoin;
 
 #[cfg(not(feature = "std"))]