This switch 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 kf77 and explicitly calling the compiler
switch -noi4 will cause KAP to be called with the
command switches -integer=2 and -logical=2
.