It compiles...

>But, since Postgresql 9.3 just came out, I'll see if I can manage at least to compile pgchem::tigress against 9.3, OpenBabel 2.3.2 and Indigo 1.1.11 before 2013 ends...

Short update: I have merged the two pull requests from Steffen Neumann and Björn Grüning into the repository and then made some minor corrections. LANGUAGE C (case insensitive but without the '') solves the one problem, replacing int4 with int32 the other. Actually this was no gcc issue, but the PostgreSQL guys have apparently decided to remove int4 as an PostgreSQL internal datatype from 9.2 to 9.3.

I had always wondered why there were so many duplicate but internally identical (e.g. int4 (number of bytes) and int32 (number of bits)) datatypes anyway. Probably some legacy...

Also, pgchem_tigress can now be installed as an relocatable extension with the CREATE EXTENSION mechanism. No need to run various installation scripts anymore (but still supported).

I still need to put an 'install' target into the Makefile to fully integrate pgchem_tigress into the extension system. Currently, the shared objects still have to be copied by hand before calling CREATE EXTENSION The PGXS Makefile already takes care of that - there is progress towards a new release.