Index: g++.dg/torture/pr86763.C
===================================================================
--- g++.dg/torture/pr86763.C	(revision 263317)
+++ g++.dg/torture/pr86763.C	(working copy)
@@ -1,5 +1,5 @@
 // { dg-do run }
-// { dg-additional-options "-fschedule-insns2 -fstrict-aliasing" }
+// { dg-additional-options "-fschedule-insns2 -fstrict-aliasing -lrt" }
 
 #include <cstdint>
 #include <cassert>