Created attachment 453676 [details] emerge --info of my system As you can see in the following link, pdfshuffler can't run if compiled with poppler > 0.38. I can confirm that this packages compiles correctly but it doesn't start because the following error: undefined symbol: poppler_orientation_get_type Link to the upstream bug: https://sourceforge.net/p/pdfshuffler/bugs/41/
Resolved recompiling dev-python/python-poppler.