1#ifndef Py_EXPORTS_H 2#define Py_EXPORTS_H 3 4#if defined(_WIN32) || defined(__CYGWIN__) 5 #define Py_IMPORTED_SYMBOL __declspec(dllimport) 6 #define Py_EXPORTED_SYMBOL __declspec(dllexport) 7 #define Py_LOCAL_SYMBOL 8#else 9/* 10 * If we only ever used gcc >= 5, we could use __has_attribute(visibility) 11 * as a cross-platform way to determine if visibility is supported. However, 12 * we may still need to support gcc >= 4, as some Ubuntu LTS and Centos versions 13 * have 4 < gcc < 5. 14 */ 15 #ifndef __has_attribute 16 #define __has_attribute(x) 0 // Compatibility with non-clang compilers. 17 #endif 18 #if (defined(__GNUC__) && (__GNUC__ >= 4)) ||\ 19 (defined(__clang__) && __has_attribute(visibility)) 20 #define Py_IMPORTED_SYMBOL __attribute__ ((visibility ("default"))) 21 #define Py_EXPORTED_SYMBOL __attribute__ ((visibility ("default"))) 22 #define Py_LOCAL_SYMBOL __attribute__ ((visibility ("hidden"))) 23 #else 24 #define Py_IMPORTED_SYMBOL 25 #define Py_EXPORTED_SYMBOL 26 #define Py_LOCAL_SYMBOL 27 #endif 28#endif 29 30#endif /* Py_EXPORTS_H */ 31