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[Bug #20633] Fix the condition for atomic_signal_fence

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`AC_CHECK_DECLS` defines `HAVE_DECL_SYMBOL` to 1 if declared, 0
otherwise, not undefined.
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kimuraw (Wataru Kimura) 2024-07-14 10:36:35 +09:00 committed by Nobuyoshi Nakada
parent 84138f52b8
commit 7472fff7f1
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1 changed files with 1 additions and 1 deletions
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vm_insnhelper.c
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@ -423,7 +423,7 @@ vm_push_frame(rb_execution_context_t *ec,
This is a no-op in all cases we've looked at (https://godbolt.org/z/3oxd1446K), but should guarantee it for all
future/untested compilers/platforms. */
#ifdef HAVE_DECL_ATOMIC_SIGNAL_FENCE
#if defined HAVE_DECL_ATOMIC_SIGNAL_FENCE && HAVE_DECL_ATOMIC_SIGNAL_FENCE
atomic_signal_fence(memory_order_seq_cst);
#endif