[Nix-dev] QGIS: Mismatch between compiled and running libpng

[Michel Kuhlmann]

Hi,
I'm just trying to update QGIS to version 2.6 [1].

I have two issues, when running the compiled executable:

   -    libpng warning: Application was compiled with png.h from libpng-1.6.13
                        Application  is  running with png.c from libpng-1.2.50
               error:   Incompatible libpng version in application and library
   -  an error: python ImportError: No module named _sysconfigdata_nd

The first issue is also present in the current version.

Could anyone assist?

Thanks, Michel

[1]: https://github.com/michelk/nixpkgs/commit/2097a72f8e6ed3f4ef2f16bd09f2643b61285975