[Gm2] lib problems

[T.D. Telford]

Hello,

when I run a simple program (see below), I get the error

gm2 -fiso power.mod
/home/dtelford/opt/lib/gcc/x86_64-unknown-linux-gnu/4.1.2/gm2/pim/StrIO.def:60:1: error: unable to obtain the MIN value for type the ZType
/home/dtelford/opt/lib/gcc/x86_64-unknown-linux-gnu/4.1.2/gm2/pim/StrIO.def:60:1: error: unable to obtain the MAX value for type the ZType

I am running linux Fedora 15 X86_64.  I compiled gm2.

Program (from algorithms and data structures):

MODULE Power;
(*compute decimal representation of negative powers of 2*)

FROM STextIO  IMPORT WriteLn, WriteString;

CONST N = 10;
VAR i, k, r: INTEGER;
    s : ARRAY[1..80] OF CHAR;
d: ARRAY N OF CARDINAL;
BEGIN
  FOR k := 0 TO N-1 DO
    WriteString("."); r := 0;
    FOR i := 0 TO k-1 DO
      r := 10*r + d[i]; d[i] := r DIV 2; r := r MOD 2;
      s := "   " + CHR(d[i] + ORD("0"));
      WriteString(s )
    END ; (* for *)
    d[k] := 5; WriteString("5"); WriteLn()
  END (* for *)
END Power.

If I change the IMPORT to
FROM StrIO  IMPORT WriteLn, WriteString;

and compile with gm2 -fpim power.mod

I get the same error.

Ideas?

Regards,
Doug