Travis Allison <travisallison@xxxxxxxxx> writes: > Tom, where's the -l switch exactly? What command is it attached to? (I'm > not sure what to look for.) Look into the extension's Makefile for something roughly along the lines of CPPFLAGS = -I/usr/include/postgresql Very likely there's some amount of macro-ization involved, so it might look more like INCLUDEDIR = /usr/include/postgresql ... CPPFLAGS = -I$(INCLUDEDIR) Furthermore, given our current theory, there's going to be more than one -I switch on that line, and you want to get rid of just one. regards, tom lane