From b13417e82c1ec62e3840748a730ea89e90c63ed6 Mon Sep 17 00:00:00 2001
From: Isis Lovecruft <isis@torproject.org>
Date: Tue, 15 May 2018 21:48:01 +0000
Subject: [PATCH] Expose backend options from curve25519-dalek.

---
 Cargo.toml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 27e3926..9ac5b25 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,6 +35,8 @@ name = "x25519"
 harness = false
 
 [features]
-default = ["std", "nightly"]
+default = ["std", "nightly", "u64_backend"]
 std = ["rand", "curve25519-dalek/std"]
 nightly = ["curve25519-dalek/nightly"]
+u64_backend = ["curve25519-dalek/u64_backend"]
+u32_backend = ["curve25519-dalek/u32_backend"]