-echo "$as_me:$LINENO: checking on top of what can we build the contexts" >&5
-echo $ECHO_N "checking on top of what can we build the contexts... $ECHO_C" >&6
echo "$as_me:$LINENO: checking for usable SVR4/SUSv2 makecontext(2)/swapcontext(2)" >&5
echo $ECHO_N "checking for usable SVR4/SUSv2 makecontext(2)/swapcontext(2)... $ECHO_C" >&6