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// file : butl/export -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#ifndef BUTL_EXPORT
#define BUTL_EXPORT
// Normally we don't export class templates (but do complete specializations),
// inline functions, and classes without any member functions. But in the end
// it's all trial and error to figure out what VC needs exported.
#if defined(LIBBUTL_STATIC) // Using static.
# define LIBBUTL_EXPORT
#elif defined(LIBBUTL_STATIC_BUILD) // Building static.
# define LIBBUTL_EXPORT
#elif defined(LIBBUTL_SHARED) // Using shared.
# ifdef _WIN32
# define LIBBUTL_EXPORT __declspec(dllimport)
# else
# define LIBBUTL_EXPORT
# endif
#elif defined(LIBBUTL_SHARED_BUILD) // Building shared.
# ifdef _WIN32
# define LIBBUTL_EXPORT __declspec(dllexport)
# else
# define LIBBUTL_EXPORT
# endif
#else
// If none of the above macros are defined, then we assume we are being using
// by some third-party build system that cannot/doesn't signal the library
// type. Note that this fallback works for both static and shared but in case
// of shared will be sub-optimal compared to having dllimport.
//
# define LIBBUTL_EXPORT // Using static or shared.
#endif
#endif // BUTL_EXPORT
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