On Wed, Oct 10, 2012 at 10:08 PM, Craig Ringer
<ringerc@ringerc.id.au> wrote:
On 10/11/2012 02:22 AM, Craig James wrote:
I have a C-language function I've been using on 8.4 for a long time. On
9.2 it won't load:
test=# set search_path = public;
SET
test=# CREATE OR REPLACE FUNCTION chmoogle_session_id() RETURNS integer
AS '/usr/local/pgsql/lib/libchmoogle.so', 'chmoogle_session_id'
LANGUAGE c VOLATILE;
ERROR: could not load library "/usr/local/pgsql/lib/libchmoogle.so":
libopenbabel.so.4: cannot open shared object file: No such file or directory
What does `ldd /usr/local/pgsql/lib/libchmoogle.so` say? What about when run under the PostgreSQL user account?
Too late ... after reading up on LD_LIBRARY_PATH and why ldconfig is better, I just ran ldconfig on the /usr/local/pgsql/lib and /usr/local/openbabel/lib directories. Problem fixed.
You may need to set LD_LIBRARY_PATH in the Pg startup script, or modify ld.so.conf, or re-build your extension with rpath linking enabled.
As for why it worked with 8.4 - I expect you either altered LD_LIBRARY_PATH in the 8.4 startup scripts, or maybe the 8.4 version of the extension was built with -Wl,-rpath so the paths to required libraries were embedded into the extension library.
It is a bit odd ... 8.4 was working, and I just compiled and installed 9.2 on top of it (and created a fresh database). Oh well, I guess it will remain a mystery.
Craig James
--
Craig Ringer