Re: Programmatically converting PNG to TIFF

[Andreas Höschler]

Hi all

> Andreas Hoeschler wrote:
> > Usually NSImage should be able to read PNG. I found a hint on the net 
> > that WindowMaker (libwrster) should be installed before configuring 
> > GNUstep to make it PNG aware. I tried that with no success. NSImage 
> > ist still not able to read PNG data.
>
> Since the great change of Alexander and Adam in January GNUstep no 
> longer relies on on libwraster to load PNG (or other graphics 
> formats). If you have a recent installation of GNUstep, it should be 
> able to read PNG files as soon as libpng is installed and found during 
> the configure process. If this does not work for you, you should 
> recheck the configure log to see if something did go wrong at that 
> stage. Otherwise it may be with the data itself. I only tested this 
> functionality with PNG files, but it should work as well with data in 
> PNG data. If your data wont work you could send on a (small) example 
> file for tests.

Thanks a lot for this hint. This is good news. I was otherwise 
successfully using

gnustep-base-1.8.0
gnustep-gui-0.9.0

on Solaris 8 and Solaris 9. I tried

gnustep-base-1.9.1
gnustep-gui-0.9.2

a few weeks ago, but whatever application I started (of my own stuff), 
I always got

Illegal Instruction (core dumped)

Therefore I did stick to the older versions. However, I reinstalled

gnustep-base-1.9.1
gnustep-gui-0.9.2

now to confirm your proposal and indeed, the image can be read from the 
PNG data now. So good so far. But I have my

Illegal Instruction (core dumped)

problem again. Is there any known issue with these newer versions on 
Solaris? Where do I best start to track this down?

Thanks a lot!

Regards,

  Andreas