From 11770cac1c6efbe03c4dded93b22426832ff87cd Mon Sep 17 00:00:00 2001
From: "Jamil Lambert, PhD" <Jamil.Lambert@proton.me>
Date: Fri, 14 Feb 2025 12:28:35 +0000
Subject: [PATCH] Add hashes to io dev-depencies and require hex

The tests in `hash` require hex.  Previously this was enabled when
`alloc` was enabled.  Now `alloc` doesn't enable `hex` add `hashes` to
`dev-dependecies` and set it to require `hex`
---
 io/Cargo.toml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/io/Cargo.toml b/io/Cargo.toml
index d245121da..f59c35e00 100644
--- a/io/Cargo.toml
+++ b/io/Cargo.toml
@@ -23,6 +23,9 @@ internals = { package = "bitcoin-internals", version = "0.4.0" }
 
 hashes = { package = "bitcoin_hashes", version = "0.16.0", default-features = false, optional = true }
 
+[dev-dependencies]
+hashes = { package = "bitcoin_hashes", version = "0.16.0", default-features = false, features = ["hex"] }
+
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]