portability-fig3.dot

digraph {
	bgcolor="transparent";

	{ rank=source;
	  testsc [label="tests.c"];
	  conf [label="configure"];
	  conflocal [label="configure.local"]; }

	{ rank=same;
	  makeconf [label="Makefile.configure"];
	  configh [label="config.h"]; }

	{ rank=sink;
	  make [label="Makefile"];
	  mainc [label="main.c"];
	  compatsc [label="compats.c"];  }

	testsc -> conf;
	conflocal -> conf;
	conf -> makeconf;
	conf -> configh;
	make -> makeconf;
	compatsc -> configh;
	mainc -> configh;

}