[tex-live] test 20051021: mips-irix pdfetex dumps core on png images

[George White]

Quoting Gerben Wierda <Gerben.Wierda at rna.nl>:

> I should test this as I use a system libpng to link statically against. 
> Any set of files I can download somewhere which might fail?

Every PNG file I tried (mostly big indexed color remote sensing images) 
produced a core dump, so there something fundamentally broken with my libpng.a
(from pdftex-1.30.4/src/libs/libpng).  It may be that a system libpng (or zlib)
compiled with different options will work.  I got a core dump from
pdftex-1.30.4/src/libs/libpng/pdftest (you will have build it manually) 
which uses pdftex-1.30.4/src/libs/libpng/pngtest.png.

On our SGI machines pdftex has to work reliably with the png files created by
RSInc's IDL language.   If you have IDL there are lots of example files in
/usr/local/rsi/idl/examples/data.

> On Oct 21, 2005, at 20:45, Olaf Weber wrote:
> 
> > George White writes:
> >
> >> Quoting George White <aa056 at chebucto.ns.ca>:
> >> Oops -- the problem is in our locally compiled pdftex-1.30.4.  The TL 
> >> test
> >> has a binary for 1.30.3 which works.  I built pngtest with the 
> >> libpng.a
> >> and it fails too, so our compiler probably got libpng or zlib wrong.
> >> I'm going to build a current libpng from the standard sources to see
> >> if I can spot the problem, but hints would be appreciated.
> >
> > As I recall, the version of libpng matters.  A lot.  Which is why I'm
> > quite happy that tex-live links a matching version statically.  New
> > IRIX binaries should be up this saturday.

-- 
George N. White III
Head of St. Margarets Bay, Nova Scotia