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ICU-20323 Suppress MSYS2 GCC warning about std::atomic visibility (Windows).

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Jeff Genovy 2019-01-08 22:16:31 -08:00 committed by Jeff Genovy
parent 335abbe3ac
commit e96724b52f
1 changed files with 9 additions and 4 deletions
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13
icu4c/source/common/umutex.h
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@ -41,15 +41,20 @@
// When building DLLs for Windows this is required as it is used as a data member of the exported SharedObject class.
// See digitlst.h, pluralaffix.h, datefmt.h, and others for similar examples.
#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN && !defined(U_IN_DOXYGEN)
#if defined(__clang__) || defined(_MSC_VER)
#if defined(__clang__)
// Suppress the warning that the explicit instantiation after explicit specialization has no effect.
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Winstantiation-after-specialization"
// Suppress the warning that the explicit instantiation after explicit specialization has no effect.
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Winstantiation-after-specialization"
#endif
template struct U_COMMON_API std::atomic<int32_t>;
#if defined(__clang__)
#pragma clang diagnostic pop
#pragma clang diagnostic pop
#endif
#elif defined(__GNUC__)
// For GCC this class is already exported/visible, so no need for U_COMMON_API.
template struct std::atomic<int32_t>;
#endif
#endif