1428 #  undef PNGAPI
1429 #  define PNGAPI __cdecl  macro
1455 #  ifndef PNGAPI
1457 #        define PNGAPI __cdecl  macro
1459 #        define PNGAPI _cdecl  macro
1470 #     define PNG_EXPORT_TYPE1(type,symbol)  PNG_IMPEXP type PNGAPI symbol
1471 #     define PNG_EXPORT_TYPE2(type,symbol)  type PNG_IMPEXP PNGAPI symbol
1499 #      ifndef PNGAPI
1500 #         define PNGAPI _System  macro
1508 #ifndef PNGAPI
1509 #  define PNGAPI  macro
1531 #  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol