From 7c12d92bc3011e1305238f0f5d3b155a01875814 Mon Sep 17 00:00:00 2001
From: "Jamil Lambert, PhD" <Jamil.Lambert@proton.me>
Date: Fri, 14 Feb 2025 12:30:16 +0000
Subject: [PATCH] Only enable hex/std, alloc when hex is

`hex/std` and `hex/alloc` should only be included if optional
dependency `hex` is enabled`.

Add `?` so it is only included if the optional feature `hex` is enabled.
---
 hashes/Cargo.toml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hashes/Cargo.toml b/hashes/Cargo.toml
index 35760c87e1..25e213790d 100644
--- a/hashes/Cargo.toml
+++ b/hashes/Cargo.toml
@@ -15,8 +15,8 @@ exclude = ["tests", "contrib"]
 
 [features]
 default = ["std"]
-std = ["alloc", "hex/std"]
-alloc = ["hex/alloc"]
+std = ["alloc", "hex?/std"]
+alloc = ["hex?/alloc"]
 serde = ["dep:serde", "hex"]
 # Smaller (but slower) implementation of sha256, sha512 and ripemd160
 small-hash = []