Hi, Blender wants libpng-1.2 and libpng-1.5 seems to be more recent. I forced the installation of version 1.2.49 for test purposes.
If I do a eix libpng I get (beside other things): [I] media-libs/libpng Available versions: (1.2) 1.2.49 ~1.2.50 (0) 1.5.10 ~1.5.11 ~1.5.12 {apng neon static-libs} Installed versions: 1.2.49(1.2)(04:53:36 07/20/12) 1.5.10(01:18:39 04/09/12)(apng -neon -static-libs) Homepage: http://www.libpng.org/ Description: Portable Network Graphics library What is the meaning of (1.2) 1.2.49 ~1.2.50 (0) 1.5.10 ~1.5.11 ~1.5.12 in the above output (specifically the '(1.2)' and (0)')? Thank you very much in advance for any help! Best regards, mcc