[gl2ps] Fwd: Re: 64-bit compilation -> pdf errors

[Ian D. Gay]

Here is a diff that seems to fix the immediate problem. 
I think it is a bit fragile, and can probably be improved upon.
Please test carefully before serious use!

Ian
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3820a3821,3822
>   if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
> 
3860a3863,3864
>   if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
> 
3883a3888,3889
>   if(sizeof(unsigned long) == 8) dmax = dmax - 2048.;
>