Freeradius 4

Hello, iam trying to compile freeradius 4 but when i run make i get this error: CC src/protocols/dhcpv4/decode.c src/protocols/dhcpv4/decode.c: In function ‘fr_dhcpv4_decode_option’: src/protocols/dhcpv4/decode.c:376:55: error: ‘FR_VENDOR_SPECIFIC’ undeclared (first use in this function) parent = fr_dict_attr_child_by_num(packet_ctx->root, FR_VENDOR_SPECIFIC); ^ src/protocols/dhcpv4/decode.c:376:55: note: each undeclared identifier is reported only once for each function it appears in make: *** [build/objs/src/protocols/dhcpv4/decode.lo] Error 1 any one has an idea about this error please, how to solve this issue? Thanks, Mettichi Bassem