Index: py/nlr.h
--- py/nlr.h.orig
+++ py/nlr.h
@@ -46,6 +46,10 @@
 
 // *FORMAT-OFF*
 
+#if defined(__OpenBSD__) && !defined(__aarch64__)
+#define MICROPY_NLR_SETJMP (1)
+#endif
+
 // If MICROPY_NLR_SETJMP is not enabled then auto-detect the machine arch
 #if !MICROPY_NLR_SETJMP
 // A lot of nlr-related things need different treatment on Windows