Trying to compile secushare

[Tobias Platen]

from gnunet-service-multicast.c:27:

gnunet-service-multicast.c: In function ‘check_cadet_join_request’:
gnunet-service-multicast.c:972:7: error: request for member ‘size’ in something 
not a structure or union
       GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST,
       ^~~~~~~~~~~~~~~~~~~~~~~~~~
gnunet-service-multicast.c:972:7: error: static assertion failed: ""
       GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST,
       ^~~~~~~~~~~~~~~~~~~~~~~~~~
gnunet-service-multicast.c:972:7: warning: passing argument 2 of 
‘GNUNET_CRYPTO_ecdsa_verify_’ from incompatible pointer type 
[-Wincompatible-pointer-types]
       GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST,
       ^~~~~~~~~~~~~~~~~~~~~~~~~~