[OS X TeX] diffps with Snow Leopard ?

[Steffen Wolfrum]

Am 11.10.2009 um 16:29 schrieb Steffen Wolfrum:

>
> Am 11.10.2009 um 16:13 schrieb Herbert Schulz:
>
>>
>> On Oct 11, 2009, at 9:01 AM, Steffen Wolfrum wrote:
>>
>>>
>>> Am 11.10.2009 um 15:13 schrieb Herbert Schulz:
>>>
>>>>
>>>> On Oct 11, 2009, at 5:09 AM, Steffen Wolfrum wrote:
>>>>
>>>>> Hi Axel, hi Jan, hi all,
>>>>>
>>>>>
>>>>> does anyone already has diffps successfully installed under Snow  
>>>>> Leopard?
>>>>>
>>>>>
>>>>> Thanks,
>>>>> Steffen
>>>>
>>>> Howdy,
>>>>
>>>> I have one dated from summer '08 in ~/bin (?) but I have no idea  
>>>> where it came from. given that it's in ~/bin I'd guess I put it  
>>>> there some time ago. Haven't used it at all so I don't know if it  
>>>> actually works and there is no man page that I know of. I just ran
>>>>
>>>> ~/bin/diffps -h
>>>>
>>>> and got the help page which, at the bottom, says ``Created by  
>>>> Michael Sternberg, 2001-2007. Use at your own risk.''
>>>>
>>>> There was a short thread about it and Leopard at <http://www.tug.org/pipermail/macostex-archives/2008-April/034949.html 
>>>> > (and the previous, linked message) and you can download the  
>>>> script at <http://homepage.mac.com/michael.g.sternberg/tex/index.html 
>>>> >.
>>>
>>>
>>> Hi,
>>>
>>> it should have been more precisely: "does anybody alredy has  
>>> successfully used under Snow Leopard?" ;o)
>>>
>>> When I run Michaels script I get an error:
>>>
>>> **** File has an unbalanced >> (close dictionary).
>>> **** Incorrect object count in object stream.
>>> Error: /rangecheck in resolveobjectstream
>>>
>>> [...]
>>>
>>> GPL Ghostscript 8.63: Unrecoverable error, exit code 1
>>>
>>> Best,
>>> Steffen
>>
>> Howdy,
>>
>> Just tried it with MacTeX-2009 pretest (which includes Ghostscript  
>> 8.70) on a couple of slightly different versions of a pdf file and  
>> it seems to work fine. Oh, yes, I'm using Snow Leopard.
>
>
>
>
> My negative test was made with the current MacTeX-2008  [20 March  
> 2009 ].
> So I am going to get and install a "MacTeX-2009 pretest" , too.
>
> I'll report later ...



It works!

The only error that pops up (for pages that where identified as  
differing) is:
"libpng warning: Invalid sBIT depth specified"

I never had this warning in 10.4  and 10.5 ... What does it mean and  
where does it come from?

Quite glad,
Steffen