GPT <gptmailinglists@xxxxxxxxx> writes: > Both PG versions 10.5 and 11 are installed. > I have been trying to compile extensions for PG11 by using: > PATH=/.../11/bin:PATH make USE_... > but unfortunately PG10 is always being used (the `make` output always > shows PG10 and refers to `pg_config`). > 1) Does it have to do with pg_config? If you're using PGXS, then yes, your makefile should be querying pg_config to find out where Postgres' headers etc are installed. You might want to check whether "pg_config --pgxs" points to the correct place. Also make sure your makefile is indeed doing something like PG_CONFIG = pg_config PGXS := $(shell $(PG_CONFIG) --pgxs) include $(PGXS) and not just hard-wiring where to look. regards, tom lane