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-rw-r--r--thread.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/thread.c b/thread.c
index f0ace8326c..5a4726d1ee 100644
--- a/thread.c
+++ b/thread.c
@@ -652,11 +652,6 @@ thread_start_func_2(rb_thread_t *th, VALUE *stack_start, VALUE *register_stack_s
rb_thread_list_t *join_list;
rb_thread_t *main_th;
VALUE errinfo = Qnil;
-# ifdef USE_SIGALTSTACK
- void rb_register_sigaltstack(rb_thread_t *th);
-
- rb_register_sigaltstack(th);
-# endif
if (th == th->vm->main_thread)
rb_bug("thread_start_func_2 must not be used for main thread");