Martin> There may be a few more places where this sort of thing will be Martin> necessary, but the compiler will be better at finding them than I will. APA> ..\src\sysdep.c(215) : warning C4013: 'fcntl' undefined; assuming Martin> extern returning int APA> ..\src\sysdep.c(215) : error C2065: 'F_SETFL' : undeclared identifier Martin> 1998-12-07 Martin Buchholz <martin(a)xemacs.org&gt; Martin> * sysdep.c (set_descriptor_non_blocking): Martin> Since O_NONBLOCK is now always #defined, make use of fcntl Martin> conditional on F_SETFL being defined. Hello Martin, is this the authoritative way to conditionalize usage of fcntl(fd, F_SETFL, ...) in 21.2? Adrian Martin> --- src/sysdep.c.old Martin> +++ src/sysdep.c Martin> ＠＠ -212,7 +212,9 ＠＠ Martin> } Martin> #endif Martin> +#ifdef F_SETFL Martin> fcntl (fd, F_SETFL, O_NONBLOCK); Martin> +#endif Martin> } Martin> #if defined (NO_SUBPROCESSES)