fix graph parser compilation

maca_graph_parser/CMakeLists.txt

maca_graph_parser/hash.c

maca_graph_parser/hash.h

maca_graph_parser/maca_graph_parser.c

maca_graph_parser/maca_graph_parser_alphabet.c

maca_graph_parser/maca_graph_parser_conll2007_format.c

maca_graph_parser/maca_graph_parser_corpora.c

maca_graph_parser/maca_graph_parser_decoder.c

maca_graph_parser/maca_graph_parser_decoder1.c

maca_graph_parser/maca_graph_parser_decoder2.c

maca_graph_parser/maca_graph_parser_dep_count_table.c

maca_graph_parser/maca_graph_parser_feature_counter.c

maca_graph_parser/maca_graph_parser_feature_counter_array.c

maca_graph_parser/maca_graph_parser_feature_table.c

maca_graph_parser/maca_graph_parser_feature_vector.c

maca_graph_parser/maca_graph_parser_features.c

maca_graph_parser/maca_graph_parser_hash.c

maca_graph_parser/maca_graph_parser_heapq.c

maca_graph_parser/maca_graph_parser_hyperdecoder.c

maca_graph_parser/maca_graph_parser_hypergraph.c