Forgot to add this file.

sass_interface.h

+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct sass_context {
+  char* sass_path;
+  char* css_path;
+  char* include_paths;
+  char* input_file;
+  char* input_string;
+  unsigned int output_style;
+};
+
+sass_context* sass_new_context();
+
+char* sass_compile(sass_context* c_ctx);
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file