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Added !defined(HB_NO_MT) to conditional compilation that does '#include <atomic>' 

The `#include <atomic>` declaration causes problems for WebAssembler, a single threaded platform.  HarfBuzz already has a preexisting macro to disable multithreading, so we're using that.
This commit is contained in:
Nathaniel Woods 2023-02-13 19:27:54 -05:00
parent 8bdaeddfcd
commit ccf055f9aa
1 changed files with 1 additions and 1 deletions
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src/hb-atomic.hh
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@ -114,7 +114,7 @@ _hb_atomic_ptr_impl_cmplexch (const void **P, const void *O_, const void *N)
#ifndef _hb_compiler_memory_r_barrier
/* This we always use std::atomic for; and should never be disabled...
* except that MSVC gives me an internal compiler error on it. */
#if !defined(_MSC_VER)
#if !defined(HB_NO_MT) && !defined(_MSC_VER)
#include <atomic>
#define _hb_compiler_memory_r_barrier() std::atomic_signal_fence (std::memory_order_acquire)
#else