--- openjdk/hotspot/src/os_cpu/linux_zero/vm/os_linux_zero.cpp	2026-05-18 00:50:25.986454068 +0100
+++ openjdk/hotspot/src/os_cpu/linux_zero/vm/os_linux_zero.cpp	2026-05-18 00:50:35.577716870 +0100
@@ -447,6 +447,7 @@
 
 extern "C" {
   int SpinPause() {
+    return 0; // Shouldn't matter.
   }
 
   int SafeFetch32(int *adr, int errValue) {