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FindPython*: Add capability to control virtual env handling.

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Fixes: #19097
This commit is contained in:
Marc Chevrier
2019-04-01 11:19:54 +02:00
parent 5ad73b608d
commit 8a2f62cc18
10 changed files with 198 additions and 20 deletions
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20
Modules/FindPython2.cmake
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@@ -153,11 +153,23 @@ Hints
Value ``ONLY`` is not supported so ``FIRST`` will be used instead.
.. note::
``Python2_FIND_VIRTUALENV``
This variable defines the handling of virtual environments. It is meaningfull
only when a virtual environment is active (i.e. the ``activate`` script has
been evaluated). In this case, it takes precedence over
``Python2_FIND_REGISTRY`` and ``CMAKE_FIND_FRAMEWORK`` variables.
The ``Python2_FIND_VIRTUALENV`` variable can be set to empty or one of the
following:
If a Python virtual environment is configured, set variable
``Python_FIND_REGISTRY`` (Windows) or ``CMAKE_FIND_FRAMEWORK`` (macOS) with
value ``LAST`` or ``NEVER`` to select it preferably.
* ``FIRST``: The virtual environment is used before any other standard
paths to look-up for the interpreter. This is the default.
* ``ONLY``: Only the virtual environment is used to look-up for the
interpreter.
* ``STANDARD``: The virtual environment is not used to look-up for the
interpreter. In this case, variable ``Python2_FIND_REGISTRY`` (Windows)
or ``CMAKE_FIND_FRAMEWORK`` (macOS) can be set with value ``LAST`` or
``NEVER`` to select preferably the interpreter from the virtual
environment.
Commands
^^^^^^^^