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I failed to recognize that pg_atomic_uint64 wasn't guaranteed to be 8 byte aligned on some 32bit platforms - which it has to be on some platforms to guarantee the desired atomicity and which we assert. As this is all compiler specific code anyway we can just rely on compiler specific tricks to enforce alignment. I've been unable to find concrete documentation about the version that introduce the sunpro alignment support, so that might need additional guards. I've verified that this works with gcc x86 32bit, but I don't have access to any other 32bit environment. Discussion: op.xpsjdkil0sbe7t@vld-kuci Per report from Vladimir Koković.
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.