I tried porting SPLIT.C on the Atari ST under two different
compilers, Alcyon (developers) and Lattice.  Alcyon worked, Lattice didn't.

Lattice
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    o The fopen/fread/fwrite group is oriented towards text files,
    and seems to choke when dealing with binary, even when the fopen
    call uses the argument "rb"/"wb".  A comment in the Lattice reference,
    p103, about setting a global to force binary mode, seemed to have
    no effect.

    o Also, fprintf calls seem to choke on the "\n" character.

Alcyon
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    o Syntax change:  fopen(name, xb) --> fopenb(name, x)

    o the linker names three undefined symbols (seem to be library
    functions), but it does not seem to affect the program.