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Diffstat (limited to 'Help/prop_tgt/VERSION.rst')
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diff --git a/Help/prop_tgt/VERSION.rst b/Help/prop_tgt/VERSION.rst new file mode 100644 index 0000000..95db483 --- /dev/null +++ b/Help/prop_tgt/VERSION.rst @@ -0,0 +1,39 @@ +VERSION +------- + +What version number is this target. + +For shared libraries ``VERSION`` and :prop_tgt:`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. For +executables ``VERSION`` can be used to specify the build version. When +building or installing appropriate symlinks are created if the +platform supports symlinks. + +Windows Versions +^^^^^^^^^^^^^^^^ + +For shared libraries and executables on Windows the ``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 :prop_tgt:`SOVERSION` property corresponds to the *compatibility version* +and ``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 :prop_tgt:`SOVERSION` will still be used to form the +``install_name`` and both :prop_tgt:`SOVERSION` and ``VERSION`` may also +affect the file and symlink names. + +Versions of Mach-O binaries may be checked with the ``otool -L <binary>`` +command. |