-#ifdef GLX_NO_STATIC_EXTENSION_FUNCTIONS
-# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func)
-# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func)
-#else
-# if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
-# define GLX_ALIAS(return_type, real_func, proto_args, args, aliased_func) \
+# ifdef HAVE_FUNC_ATTRIBUTE_ALIAS
+/* GLX_ALIAS and GLX_ALIAS_VOID both expand to the macro GLX_ALIAS2. Using the
+ * extra expansion means that the name mangling macros in glx_mangle.h will
+ * apply before stringification, so the alias attribute will have a string like
+ * "mglXFoo" instead of "glXFoo". */
+# define GLX_ALIAS2(return_type, real_func, proto_args, args, aliased_func) \