Binary compatibility issues

From: you encounter the message "Headers do not match", it may be caused by :§  Using a different machine type (x86 vs AMD64)§  Using a different compilation of CHARMMHere is the solution :From the machine which generate the (binary) trajectory file :    open unit 10 unform name merge.trj    open unit 20   form name form_merge.trj    DYNA FORM FIRST 10 OUTP 20From the machine which will read this formatted trajectory     open unit 10   form name form_merge.trj    open unit 20 unform name merge.trj    DYNA UNFO INPUT 10 OUTP 20