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11a0a8b529
Replace the symlink-chasing logic in find_my_exec with realpath(3), which has been required by POSIX since SUSv2. (Windows lacks realpath(), but there we can use _fullpath() which is functionally equivalent.) The main benefit of this is that -- on all modern platforms at least -- realpath() avoids the chdir() shenanigans we used to perform while interpreting symlinks. That had various corner-case failure modes so it's good to get rid of it. There is still ongoing discussion about whether we could skip the replacement of symlinks in some cases, but that's really matter for a separate patch. Meanwhile I want to push this before we get too close to feature freeze, so that we can find out if there are showstopper portability issues. Discussion: https://postgr.es/m/797232.1662075573@sss.pgh.pa.us |
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| configure | ||
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| COPYRIGHT | ||
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| README | ||
| README.git | ||
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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.