> `groff -X' shows the error. But `groff -Z|gxditview -' also
> generates the same error. `groff -TX*', on the other hand, is
> different and avoids the error.
>
> That seems curious to me. `-X' is said to produce PS output, while
> `-Z' generates just the intermediate output. So `-Z' should look
> more like `-TX*' than `-X'.
>
> What exactly is going on with -X, -Z, and -TX*?
It is very instructive to use groff's -V option to see the full pipe:
rigel:~$ groff -V -X
troff -r.X=1 -Tps | gxditview -printCommand 'grops | lpr' -
rigel:~$ groff -V -Z
troff -Tps
rigel:~$ groff -V -TX75
troff -TX75 | gxditview -
Does this answer your question?
Werner
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