diff -up firefox-60.5.0/js/src/jit/AtomicOperations.h.jit-atomic-lucky firefox-60.5.0/js/src/jit/AtomicOperations.h
--- firefox-60.5.0/js/src/jit/AtomicOperations.h.jit-atomic-lucky 2019-01-22 10:20:27.993697161 +0100
+++ firefox-60.5.0/js/src/jit/AtomicOperations.h 2019-01-22 10:23:15.337873762 +0100
@@ -394,7 +394,7 @@ inline bool AtomicOperations::isLockfree
#elif defined(__s390__) || defined(__s390x__)
#include "jit/none/AtomicOperations-feeling-lucky.h"
#else
-#error "No AtomicOperations support provided for this platform"
+#include "jit/none/AtomicOperations-feeling-lucky.h"
#endif
#endif // jit_AtomicOperations_h