From 057dccad8f2dd0ff966b2827f08f00f3f5e142df Mon Sep 17 00:00:00 2001
From: Calvin Rose <calsrose@gmail.com>
Date: Thu, 9 Feb 2023 03:09:53 -0600
Subject: [PATCH] Turn on nanboxing by default for risc-v 64.

---
 src/include/janet.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/include/janet.h b/src/include/janet.h
index 67c84e16..1df3e997 100644
--- a/src/include/janet.h
+++ b/src/include/janet.h
@@ -280,10 +280,11 @@ extern "C" {
 #ifndef JANET_NO_NANBOX
 #ifdef JANET_32
 #define JANET_NANBOX_32
-#elif defined(__x86_64__) || defined(_WIN64)
+#elif defined(__x86_64__) || defined(_WIN64) || defined(__riscv)
 /* We will only enable nanboxing by default on 64 bit systems
- * on x86. This is mainly because the approach is tied to the
- * implicit 47 bit address space. */
+ * for x64 and risc-v. This is mainly because the approach is tied to the
+ * implicit 47 bit address space. Many arches allow/require this, but not all,
+ * and it requires cooperation from the OS. ARM should also work in many configurations. */
 #define JANET_NANBOX_64
 #endif
 #endif