project Vdiff is
  for Languages use ("Ada", "C");
  for Source_Dirs use ("src", "lib");
  for Object_Dir use "obj";
  for Exec_Dir use ".";
  for Main use ("diff.c");
  for Excluded_Source_Files use ("vpatch.adb");
  package Builder is
     for Executable ("diff.c") use "vdiff";
  end Builder;
end Vdiff;