In the course of developing my XML parser hooks I've been using an external XML parser (expat) which is built as a shared library. The C functions I'm writing need to access functions within that library. Is it OK just to link the .so of my backend function against the expat library? i.e. to do gcc -shared -lexpat -o pgxml.so pgxml.o as the link stage (it seems to work fine) -or is there a portability problem with this? IF this is OK, would it be sensible to change the platform-specific makefile %.so rule to allow the specification of extra instance specific flags i.e. (example from Makefile.linux) %.so: %.o $(CC) -shared -o $@ $< changed to: %.so: %.o $(CC) -shared $(DLLINKFLAGS) -o $@ $< or something similar, which would prevent me from having to override the global rule and allow greater portability. Thanks John ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl