1 files changed, 2 insertions, 0 deletions
diff --git a/include/ruby/3/memory.h b/include/ruby/3/memory.h
index 9001fd2ab3..18ed1d81cb 100644
--- a/include/ruby/3/memory.h
+++ b/include/ruby/3/memory.h
@@ -253,7 +253,9 @@ ruby3_size_mul_or_raise(size_t x, size_t y)
     }
     else {
         ruby_malloc_size_overflow(x, y);
+# if ! defined(__sun)
         RUBY3_UNREACHABLE_RETURN(0);
+# endif
     }
 }