}//else if(UNLIKELY( pfd(sfd) < 0 )) return (perror("failed to (redundantly?) FD_CLOEXEC b_stderrr"),0); // TODO: XXX: Does dup2() copy the CLOEXEC flag? Find out, and it it does, remove this line.
#else
if(UNLIKELY(!fdreopen(&stderr,b_stderr,"wb"))){
if(UNLIKELY(!fdreopen(&stderr,b_stderr,"wb"))){
perror("failed to reopen parent stderr with pdup()'d stream");
perror("failed to reopen parent stderr with pdup()'d stream");