--- a/src/native/unix/support/apsupport.m4	2022-02-21 15:56:48.000000000 +0400
+++ b/src/native/unix/support/apsupport.m4	2022-02-21 15:58:01.995238670 +0400
@@ -181,6 +186,10 @@
     CFLAGS="$CFLAGS -DCPU=\\\"aarch64\\\""
     HOST_CPU=aarch64
     ;;
+  riscv64)
+    CFLAGS="$CFLAGS -DCPU=\\\"riscv64\\\""
+    HOST_CPU=riscv64
+    ;;
   *)
     AC_MSG_RESULT([failed])
     AC_MSG_ERROR([Unsupported CPU architecture "$host_cpu"]);;