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Languages: Add support for Objective-C++

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Add entries in Modules and Modules/Platform to support
Objective-C++ compiler determination and identification.
Add Modules to check Objective-C++ compiler flags, source
compilations, program checks, etc...

Use OBJCXX as the designator of the language, eg:

project(foo OBJCXX)

Add various tests for Objective-C++ language features.  Add
tests to preserve C++ handling of .M and .mm files when
Objective-C++ is not a configured language.

Co-authored-by: Cristian Adam <cristian.adam@gmail.com>
This commit is contained in:
Steve Wilson
2019-09-13 18:12:15 +01:00
committed by Cristian Adam
parent 80f120a85f
commit 9e66397c28
39 changed files with 1453 additions and 32 deletions
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4
Help/command/project.rst
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@@ -87,8 +87,8 @@ The options are:
Can also be specified without ``LANGUAGES`` keyword per the first, short signature.
Selects which programming languages are needed to build the project.
Supported languages include ``C``, ``CXX`` (i.e. C++), ``CUDA``, ``OBJC`` (i.e. Objective-C),
``Fortran``, and ``ASM``.
Supported languages include ``C``, ``CXX`` (i.e. C++), ``CUDA``,
``OBJC`` (i.e. Objective-C), ``OBJCXX``, ``Fortran``, and ``ASM``.
By default ``C`` and ``CXX`` are enabled if no language options are given.
Specify language ``NONE``, or use the ``LANGUAGES`` keyword and list no languages,
to skip enabling any languages.