The maketpf utility has been updated by PJ43440 to allow generation of DFDL files from C/C++ structures. Prior to this update, the only way to generate DFDL files was for TPFDF lrecs online after loading MLS data to z/TPF. Now one can generate DFDL files directly on linux for any C structures found within an object built through maketpf. Simply append the new target name of "dfdl" to the maketpf command to generate DFDL files for programs or objects. A new maketpf.cfg environment variable of TPF_DFDL_DIR can be set to specify the output directory for the DFDL files. The generated file names will have the format of <struct or typedef name>.gen.dfdl.xsd.