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project: Add optional LANGUAGES keyword

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Teach the project() command to recognize an optional "LANGUAGES"
keyword after the project name and prior to the list of languages.
Do not allow multiple copies of the keyword.  If the keyword is
specified and no languages are listed, imply NONE.
This commit is contained in:
Brad King
2014-01-29 09:28:01 -05:00
parent 00007dcc36
commit 16d040c958
14 changed files with 53 additions and 5 deletions
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5
Help/command/project.rst
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@@ -5,7 +5,7 @@ Set a name and enable languages for the entire project.
.. code-block:: cmake
project(<PROJECT-NAME> [<language-name>...])
project(<PROJECT-NAME> [LANGUAGES] [<language-name>...])
Sets the name of the project and stores the name in the
:variable:`PROJECT_NAME` variable. Additionally this sets variables
@@ -18,7 +18,8 @@ Sets the name of the project and stores the name in the
Optionally you can specify which languages your project supports.
Example languages are ``C``, ``CXX`` (i.e. C++), ``Fortran``, etc.
By default ``C`` and ``CXX`` are enabled if no language options are
given. Specify language ``NONE`` to skip enabling any languages.
given. Specify language ``NONE``, or use the ``LANGUAGES`` keyword
and list no languages, to skip enabling any languages.
If a variable exists called :variable:`CMAKE_PROJECT_<PROJECT-NAME>_INCLUDE`,
the file pointed to by that variable will be included as the last step of the