On 2018/10/27 8:06, Andrea Parri wrote: >> And you have a2ping 2.83p, right? Otherwise, Makefile should >> complain. Hmm??? > > Indeed, 2.83p. > > >> >> Can you remove "> /dev/null 2>&1" on line 220 of Makefile, >> and let me know what a2ping should say? > > It says: > > /usr/local/bin/a2ping: not a GS output from gs (0) Umm, "gs (0)" suggests exit code of gs is 0, which should indicate success. I have no idea what is going on. I have a Ubuntu 18.04 virtual machine and a2ping 2.83p works happily there. Sorry but I can't help you at the moment. Akira > > Andrea > > >> >> "GPL Ghostscript 9.25: Unrecoverable error, exit code 1" is not >> fatal and can be ignored as far as I know. >> >> Akira