Re: building from src, linking libpng

On Wed, Jun 29, 2011 at 05:54:43PM -0500, Bob Friesenhahn wrote:
> On Wed, 29 Jun 2011, [email protected] wrote:
>>
>>> What version of libpng is being used?
>>
>> png-1.5.2
>
> Ahhh.  Sorry. :-)
>
>> Thanks -- I'm typically not an auto* debugger -- looking, and I have
>> a clue -- lib is installed as libpng15.so, so linking with -lpng
>> fails. Tested, confirmed.
>>
>> Can I pass alternate name for this lib to ./configure?
>
> Yes, but there are other concerns.
>
> You can do
>
>   ./configure LIBS=-lpng14
>
> if the library would be matched like libpng14.so.  However, you would  
> also need the headers to match that library and you will have libpng 1.5 
> headers installed.  This means that you would also need to install the 
> libpng 1.4 headers.  If they are installed, you could tell configure to 
> use them by also adding something like.
>
>   CPPFLAGS=-I/the/path/libpng-1.4
>
> Are you able to (and willing to) substitute the development/snapshot  
> version of the library instead?

Should I just pull from head of mercurial, or are there occasional beta
snapshots I can grab?

> Bob
> -- 
> Bob Friesenhahn
> [email protected], http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

-- 
Brad Harder
Method Logic Digital Consulting
http://methodlogic.net/
http://twitter.com/bcharder


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