#endif
+#ifndef PA_GCC_PURE
+#ifdef __GNUCC__
+#define PA_GCC_PURE __attribute__ ((pure))
+#else
+/** This function's return value depends only the arguments list and global state **/
+#define PA_GCC_PURE
+#endif
+#endif
+
+#ifndef PA_GCC_CONST
+#ifdef __GNUCC__
+#define PA_GCC_CONST __attribute__ ((pure))
+#else
+/** This function's return value depends only the arguments list (stricter version of PA_GCC_CONST) **/
+#define PA_GCC_CONST
+#endif
+#endif
+
#endif