1 files changed, 0 insertions, 3 deletions
diff --git a/vm.c b/vm.c
index 439464a42f..16a7312ce3 100644
--- a/vm.c
+++ b/vm.c
@@ -2878,9 +2878,6 @@ mjit_pause_m(int argc, VALUE *argv, RB_UNUSED_VAR(VALUE self))
 
 extern VALUE *rb_gc_stack_start;
 extern size_t rb_gc_stack_maxsize;
-#ifdef __ia64
-extern VALUE *rb_gc_register_stack_start;
-#endif
 
 /* debug functions */