ZeroTierOne/ext/libnatpmp/declspec.h

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#ifndef DECLSPEC_H_INCLUDED
#define DECLSPEC_H_INCLUDED
#if defined(WIN32) && !defined(STATICLIB)
/* for windows dll */
#ifdef NATPMP_EXPORTS
#define LIBSPEC __declspec(dllexport)
#else
#define LIBSPEC __declspec(dllimport)
#endif
#else
#if defined(__GNUC__) && __GNUC__ >= 4
/* fix dynlib for OS X 10.9.2 and Apple LLVM version 5.0 */
#define LIBSPEC __attribute__ ((visibility ("default")))
#else
#define LIBSPEC
#endif
#endif
#endif