Mitch Capper wrote: > I am not sure > how one just tests of a gnulib polyfill is being used.
There are two general mechanisms that Gnulib offers: * #if GNULIB_<module_name_uppercased> tests whether the module is in use. * #if GNULIB_defined_<type_name> #if GNULIB_overrides_<function_name> are available for a few selected types and functions, where needed. Bruno