From b20092369ffa8f3d78ecdb66be7a3c05fabe0d48 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 22 Apr 2019 20:09:42 +0200
Subject: [PATCH] fix extracting a u64 on little-endian CPUs

---
 rand_core/src/block.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/rand_core/src/block.rs b/rand_core/src/block.rs
index 6772a18a895..b1dd4cef9e4 100644
--- a/rand_core/src/block.rs
+++ b/rand_core/src/block.rs
@@ -181,9 +181,9 @@ where <R as BlockRngCore>::Results: AsRef<[u32]> + AsMut<[u32]>
     #[inline(always)]
     fn next_u64(&mut self) -> u64 {
         let read_u64 = |results: &[u32], index| {
-            if cfg!(any(target_arch = "x86", target_arch = "x86_64")) {
-                // requires little-endian CPU supporting unaligned reads:
-                let ptr: *const u64 = results[index..index+1].as_ptr() as *const u64;
+            if cfg!(any(target_endian = "little")) {
+                // requires little-endian CPU
+                let ptr: *const u64 = results[index..=index+1].as_ptr() as *const u64;
                 unsafe { ptr::read_unaligned(ptr) }
             } else {
                 let x = u64::from(results[index]);