Ciao Olivier, I just managed to install lhapdf6 (v 6.1.4) on my mac, with the —disable-python flag when you configure it… It is working… I will now update the lhapdf6 branch with the latest 2.2.0 and check out the problems you were mentioning… Cheers, Marco On 21 Aug 2014, at 14:01, marco zaro