[Qgis-developer] qgis-master: libpng warning & error, invisible icons

[Nikos Alexandris]

* Nikos Alexandris <nik at nikosalexandris.net> [2015-05-29 10:59:33 +0300]:

> 
> Dear QGIS developers,
> 
> I am running the latest qgis-master, build from scratch under
> Funtoo-Linux. I would like to have the stable version but I can't get it
> built.  qgis-master compiles without errors so I am happy working with and
> testing it.
> 
> 
> Upon launching from the terminal, the following warning & error(s) appears
> repeatedly:
> 
>     Running from build directory!
>     - source directory: /osgeo/QGIS
>     - output directory of the build: /osgeo/QGIS/build-master/output
>     Warning: loading of qgis translation failed [/osgeo/QGIS/build-master/output/i18n/qgis_en_US]
>     Warning: loading of qt translation failed [/usr/share/qt4/translations/qt_en_US]
>     libpng warning: Application was compiled with png.h from libpng-1.6.17
>     libpng warning: Application  is  running with png.c from libpng-1.2.50
>     libpng error: Incompatible libpng version in application and library
>     ...
> 
> 
> Perhaps there is some package using this older libpng version (?), otherwise, there
> is no trace of this version installed.
> 

Inside the GDAL version I use, I have found the following README file:

--%<---
*** IMPORTANT ***
Updating libpng in GDAL tree should follow update of zlib library in
frmts/zlib.
*****************

libpng 1.2.50 is the official PNG reference library.
It supports almost all PNG features, is extensible,
and has been extensively tested for over 15 years.

http://www.libpng.org


GDAL changes (stored in libpng_gdal.patch)
--->%--

So, should I rather use the old libpng library for QGIS too?

Thanks, Nikos