IlmThreadExport.h

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//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//

#ifndef INCLUDED_ILMTHREADEXPORT_H
#define INCLUDED_ILMTHREADEXPORT_H

#include "OpenEXRConfig.h"

// See website/SymbolVisibility.rst for more discussion

/// \addtogroup ExportMacros
/// @{

// are we making a DLL under windows (might be msvc or mingw or others)
#if defined(OPENEXR_DLL)

// when building as a DLL for windows, typical dllexport / import case
// where we need to switch depending on whether we are compiling
// internally or not
#    if defined(ILMTHREAD_EXPORTS)
#        define ILMTHREAD_EXPORT __declspec(dllexport)
#    else
#        define ILMTHREAD_EXPORT __declspec(dllimport)
#    endif

// DLLs don't support these types of visibility controls, just leave them as empty
#    define ILMTHREAD_EXPORT_TYPE
#    define ILMTHREAD_HIDDEN

#else // OPENEXR_DLL

// just pass these through from the top level config
#    define ILMTHREAD_EXPORT OPENEXR_EXPORT
#    define ILMTHREAD_HIDDEN OPENEXR_HIDDEN
#    define ILMTHREAD_EXPORT_TYPE OPENEXR_EXPORT_TYPE

#endif // OPENEXR_DLL

/// @}

#endif // INCLUDED_ILMTHREADEXPORT_H