/* GLX_ALIAS should be used for functions with a non-void return type.
GLX_ALIAS_VOID is for functions with a void return type. */
-# if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED)
+# 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
# define GLX_ALIAS_VOID(real_func, proto_args, args, aliased_func) \
void real_func proto_args \
{ aliased_func args ; }
-# endif /* __GNUC__ */
+# endif /* HAVE_FUNC_ATTRIBUTE_ALIAS */
#ifdef __cplusplus
}