Fix definition of TINYSPLINE_SHARED_IMPORT.
#ifdef _WIN32
#define TINYSPLINE_SHARED_EXPORT __declspec(dllexport)
-#define TINYSPLINE_SHARED_IMPORT __declspec(dllexport)
+#define TINYSPLINE_SHARED_IMPORT __declspec(dllimport)
#else
#define TINYSPLINE_SHARED_EXPORT
#define TINYSPLINE_SHARED_IMPORT
