#ifdef _SVR4_SOURCE
#	define GATEG_NSIG _sys_nsig
#else
#	ifdef NSIG
#		define GATEG_NSIG NSIG
#	else
#		ifdef _NSIG
#			define GATEG_NSIG _NSIG
#		else
			/* conservative guess */
#			define GATEG_NSIG 256
#		endif
#	endif
#endif