This qualifier specifies a size in bytes, N, for the default size of LOGICAL variables. When N=1, 2, or 4, take LOGICAL*N as the default LOGICAL type. When N=0, use the ordinary default length for LOGICAL variables.
Executing kfort and explicitly calling the compiler
qualifier /noi4 will cause KAP to be called with
the command qualifiers /integer=2 and
/logical=2 .