configure: we do not require curl, but wget.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
(transplanted from d84ae99556cd948350c086628a5e163e6b464e00)

#!/bin/sh

call_to=@@DEFAULT_LD@@

case "${CTNG_LD_IS}" in

    bfd)    call_to=bfd;;

    gold)   call_to=gold;;

esac

exec "${0}.${call_to}" "$@"

exit $?