Huh. Thought I had czmq installed but I didn't. Currently fighting:
/usr/bin/ld: libdatacoin_server.a(libdatacoin_server_a-miner.o): in function `__gmp_expr<__mpz_struct [1], __mpz_struct [1]>::__gmp_expr()':
/usr/include/gmpxx.h:1488: undefined reference to `__gmpz_init'