added support for detecting ncr boxen

aclocal.m4

@@ -316,10 +316,14 @@ if test -n "$UNAMEPROG"; then
 	    else
 		OS="sco"
 	    fi
+	else
+	    if test -f /etc/.relid -a "`$UNAMEPROG -p`" = "386/486/MC"; then
+		OS="ncr"
 	    else
 		OS=`$UNAMEPROG -v`
 	    fi
 	fi
+    fi
 
     # this is yucky but we want to make sure $OSREV is an int...
     OSREV=`$UNAMEPROG -r | $SEDPROG -e 's/^[[ \.0A-z]]*//' -e 's/\..*//'`