project boost/graph
    : requirements <include>../src
    : source-location ../src
    ;

lib libbgl-viz 
    : graphviz_graph_lex 
    graphviz_digraph_lex 
    graphviz_graph_parser 
    graphviz_digraph_parser
    : <define>YY_NO_UNISTD_H
	;

obj graphviz_graph_lex : graphviz_lex.ll 
    : <flex.prefix>bgl_undir_ <define>GRAPHVIZ_DIRECTED=0 
      <implicit-dependency>graphviz_graph_parser ;
obj graphviz_graph_parser : graphviz_parser.yy 
    : <bison.prefix>bgl_undir_ 	<define>GRAPHVIZ_DIRECTED=0 ;    
    
    
obj graphviz_digraph_lex : graphviz_lex.ll 
    : <flex.prefix>bgl_dir_ <define>GRAPHVIZ_DIRECTED=1 
      <implicit-dependency>graphviz_digraph_parser ;
obj graphviz_digraph_parser : graphviz_parser.yy 
    : <bison.prefix>bgl_dir_ 	<define>GRAPHVIZ_DIRECTED=1 ;