On Feb 20, 2011, at 20:06, Dave Ray wrote:

> I've been using 2.6.0_final (snow leopard) for a few weeks now without 
> problems. Some of my apps use libpng, and there were no problems with the 
> libs in /opt/X11/lib.
> 
> I was building some new apps today that use png, against the headers in 
> XQuartz. First time trying this with 2.6.0. gcc was throwing png-related 
> errors. I had no png packages installed besides those from Apple and XQuartz. 
> 
> All my paths are all set to /usr/local first, then /opt/X11, then /usr/X11 
> last. So I'm pretty sure the ones from XQuartz were the ones being used.
> 
> I compiled libpng1.5.1 and installed into /usr/local. I pruned out all the 
> png files from /opt/X11 (except libs in /opt/X11/lib). All gcc errors went 
> away. 
> 
> I don't think the problem is the libpng version number, since 1.5.1 is 
> working. I think there was something wrong with the include headers or 
> something. Perhaps the libpng version in XQuartz 2.6.0 was an early version 
> of 1.5 with bugs.

Nope.  2.6.0 contains 1.4.x and 1.2.x SDK and libs.  2.6.1_beta1 contains 
1.2.x, 1.4.x libs and 1.5.x SDK and libs.

That being said, there are no known problems.  Please be a bit more specific 
about the issues you are seeing.  Also, please try 2.6.1_beta1 since it will 
probably just work for you.



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