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Previously, we included <xlocale.h> only if necessary to get the definition of type locale_t. According to notes in PGAC_TYPE_LOCALE_T, this is important because on some versions of glibc that file supplies an incompatible declaration of locale_t. (This info may be obsolete, because on my RHEL6 box that seems to be the *only* definition of locale_t; but there may still be glibc's in the wild for which it's a live concern.) It turns out though that on FreeBSD and maybe other BSDen, you can get locale_t from stdlib.h or locale.h but mbstowcs_l() and friends only from <xlocale.h>. This was leaving us compiling calls to mbstowcs_l() and friends with no visible prototype, which causes a warning and could possibly cause actual trouble, since it's not declared to return int. Hence, adjust the configure checks so that we'll include <xlocale.h> either if it's necessary to get type locale_t or if it's necessary to get a declaration of mbstowcs_l(). Report and patch by Aleksander Alekseev, somewhat whacked around by me. Back-patch to all supported branches, since we have been using mbstowcs_l() since 9.1.
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/.