File dependencies in a ./configure project

digraph map {

  node [shape=hexagon     fontsize=12 fontname=verdana]; configure_in Makefile_am acconfig_h code acinclude_m4   man_created;   
  node [shape=box         fontsize=12 fontname=verdana]; aclocal_m4 configure config_h_in Makefile_in Makefile
                                                         config_status config_log configure_scan  created; 

  node [shape=ellipse fontsize=12 fontname=verdana]; aclocal autoheader autoconf automake autoscan  gnu_tools;      

  configure_in   [label="configure.ac"                          ];
  Makefile_am    [label="Makefile.am"                           ];
  configure      [label="./configure"                           ];
  aclocal        [label="aclocal"                               ];
  autoheader     [label="autoheader"                            ];
  autoconf       [label="autoconf"                              ];
  autoscan       [label="autoscan"                              ];
  config_h_in    [label="config.h.in"                           ];
  aclocal_m4     [label="aclocal.m4"                            ];
  config_h       [label="config.h"                              ];
  Makefile_in    [label="Makefile.in"                           ];
  gnu_tools      [label="GNU Tools"                             ];
  created        [label="created"                               ];
  man_created    [label="manually created"                      ];
  acconfig_h     [label="acconfig.h"                            ];
  acinclude_m4   [label="acinclude.m4"                          ];
  config_status  [label="config.status"                         ];
  config_log     [label="config.log"                            ];
  configure_scan [label="configure.scan"                        ];
  code           [label="code"                                  ];

  code           -> autoscan;

  configure_in   -> autoconf;
  autoconf       -> configure;

  autoscan       -> configure_scan;
  configure_scan -> configure_in    [label="Manually editing" fontname=verdana fontsize=12];

  configure_in   -> aclocal         [label=reads  fontname=verdana fontsize=12];
  acinclude_m4   -> aclocal;
  aclocal        -> aclocal_m4;
  aclocal_m4     -> autoconf        [label=reads  fontname=verdana fontsize=12];
  aclocal_m4     -> autoheader      [label=reads  fontname=verdana fontsize=12]; /*see http://www.lrde.epita.fr/~adl/dl/autotools.pdf*/
  aclocal_m4     -> automake        [label=reads  fontname=verdana fontsize=12]; /*see http://www.lrde.epita.fr/~adl/dl/autotools.pdf*/

  acconfig_h     -> autoheader;
  configure_in   -> autoheader      [label=reads  fontname=verdana fontsize=12];
  autoheader     -> config_h_in;

  Makefile_am    -> automake;
  automake       -> Makefile_in;

  configure_in   -> automake        [label=reads  fontname=verdana fontsize=12]; /*see http://www.lrde.epita.fr/~adl/dl/autotools.pdf*/
  config_h_in    -> configure       [label=reads  fontname=verdana fontsize=12];
  Makefile_in    -> configure       [label=reads  fontname=verdana fontsize=12];
  configure      -> config_h        [label=writes fontname=verdana fontsize=12];
  configure      -> Makefile        [label=writes fontname=verdana fontsize=12];
  configure      -> config_status   [label=writes fontname=verdana fontsize=12 style=dotted];
  configure      -> config_log      [label=writes fontname=verdana fontsize=12];

  Makefile       -> make;
}

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