core: Only import SIGHUP and install a SIGHUP handler if the OS is porix. (nt platforms dont' have this kind of signal).
core: Only import SIGHUP and install a SIGHUP handler if the OS is porix. (nt platforms dont' have this kind of signal).

eriol/circuits,treemo/circuits,eriol/circuits,eriol/circuits,treemo/circuits,nizox/circuits,treemo/circuits