--- a/cmake/modules/CheckCxxAtomic.cmake	2023-08-23 14:08:23.304911386 +0800
+++ b/cmake/modules/CheckCxxAtomic.cmake	2023-08-23 14:09:10.994614880 +0800
@@ -11,7 +11,7 @@
 #include <atomic>
 #include <cstdint>
 
-#if defined(__s390x__) || defined(__sw_64__) || defined(__loongarch64)
+#if defined(__s390x__) || defined(__sw_64__) || defined(__loongarch64) || defined(__riscv)
 // Boost needs 16-byte atomics for tagged pointers.
 // These are implemented via inline instructions on the platform
 // if 16-byte alignment can be proven, and are delegated to libatomic