Aggregate project Yaml_All is
   for Project_Files use project'Project_Files & ("yaml-annotation_processor.gpr");
   for Project_Files use project'Project_Files & ("yaml.gpr");
   for Project_Files use project'Project_Files & ("yaml-server.gpr");
   for Project_Files use project'Project_Files & ("yaml-tests.gpr");
   for Project_Files use project'Project_Files & ("yaml-utils.gpr");
end Yaml_All;