Re: pgxs "missing magic block ... PG_MODULE_MAGIC" with "MODULE_big"

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: David Fuhry <dfuhry(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: pgxs "missing magic block ... PG_MODULE_MAGIC" with "MODULE_big"
Date: 2013-01-08 17:55:47
Message-ID: 11039.1357667747@sss.pgh.pa.us
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David Fuhry <dfuhry(at)gmail(dot)com> writes:
> Hi, I'm trying to add a C-Language function but getting the following error:
> $ psql -f test_cfunc.sql
> psql:test_cfunc.sql:3: ERROR: incompatible library
> "/usr/local/pgsql/lib/test_cfunc.so": missing magic block
> HINT: Extension libraries are required to use the PG_MODULE_MAGIC macro.

> I am calling PG_MODULE_MAGIC in my c file. Minimal Makefile, .c, and .sql
> files are attached. In the Makefile, if I change "MODULE_big" to "MODULES",
> it works. However, I want to use "MODULE_big" because I need to later link
> to a shared library using SHLIB_LINK, and "MODULES" doesn't support
> SHLIB_LINK as per
> http://archives.postgresql.org/pgsql-hackers/2012-03/msg00537.php

I think you're missing the OBJS line, with the result that the .so ends
up empty.

regards, tom lane

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