1dnl Id 2dnl rk_WIN32_EXPORT buildsymbol symbol-that-export 3AC_DEFUN([rk_WIN32_EXPORT],[AH_TOP([#ifdef $1 4#ifndef $2 5#ifdef _WIN32_ 6#define $2_FUNCTION __declspec(dllexport) 7#define $2_CALL __stdcall 8#define $2_VARIABLE __declspec(dllexport) 9#else 10#define $2_FUNCTION 11#define $2_CALL 12#define $2_VARIABLE 13#endif 14#endif 15#endif 16])]) 17