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My back-patch of the 9.4-era commit44cd47c1d4into 9.2 and 9.3 fixed HPPA builds as expected, but it broke --disable-spinlocks builds, because the dummy spinlock is initialized before the underlying semaphore infrastructure is alive. In 9.4 and up this works because of commitdaa7527afc, which decoupled initialization of an slock_t variable from access to the actual system semaphore object. The best solution seems to be to back-port that patch, which should be a net win anyway because it improves the usability of --disable-spinlocks builds in the older branches; and it's been out long enough now to not be worrisome from a stability perspective.
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/.