Re: Adrian Klaver 2018-01-06 <67591f85-a910-2e0b-1fdd-9c774eacd65f@xxxxxxxxxxx> > The problem you are running into is that the build process is using both the > older(9.6.5) and newer(10.0) pg_config.h at the same time. Fwiw, all issues I've seen so far of that kind could be resolved by putting -I$(pg_config --includedir-server) before -I$(pg_config --includedir) in the Makefile. I don't know of any PG extension existing in the wild that does not work with having both /usr/include/postgresql/$version/server/pg_config.h and /usr/include/postgresql/pg_config.h installed - and we are packaging a lot of extensions for apt.postgresql.org for non-latest majors. Christoph
