* libU77/configure.in (sys/param.h,sys/times.h): Check.
	(times,alarm): Likewise.
	* libU77/config.h.in (HAVE_SYS_PARAM_H, HAVE_SYS_TIMES_H,
	HAVE_ALARM, HAVE_TIMES): New defs.
	* libU77/alarm_.c: Conditionalize for target platform. Set errno
	to ENOSYS if target libc doesn't have the function.
	* libU77/dtime_.c: Likewise.
	* libU77/etime_.c: Likewise.
	* libU77/sys_clock_.c: Likewise.

From-SVN: r17398