SOVERSION --------- What version number is this target. For shared libraries :prop_tgt:`VERSION` and ``SOVERSION`` can be used to specify the build version and API version respectively. When building or installing appropriate symlinks are created if the platform supports symlinks and the linker supports so-names. If only one of both is specified the missing is assumed to have the same version number. ``SOVERSION`` is ignored if :prop_tgt:`NO_SONAME` property is set. Windows Versions ^^^^^^^^^^^^^^^^ For shared libraries and executables on Windows the :prop_tgt:`VERSION` attribute is parsed to extract a ``<major>.<minor>`` version number. These numbers are used as the image version of the binary. Mach-O Versions ^^^^^^^^^^^^^^^ For shared libraries and executables on Mach-O systems (e.g. macOS, iOS), the ``SOVERSION`` property corresponds to the *compatibility version* and :prop_tgt:`VERSION` corresponds to the *current version* (unless Mach-O specific overrides are provided, as discussed below). See the :prop_tgt:`FRAMEWORK` target property for an example. For shared libraries, the :prop_tgt:`MACHO_COMPATIBILITY_VERSION` and :prop_tgt:`MACHO_CURRENT_VERSION` properties can be used to override the *compatibility version* and *current version* respectively. Note that ``SOVERSION`` will still be used to form the ``install_name`` and both ``SOVERSION`` and :prop_tgt:`VERSION` may also affect the file and symlink names. Versions of Mach-O binaries may be checked with the ``otool -L <binary>`` command.
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