Merge topic 'initial_cuda_language_support'

4cc601f2 Help: Add release note for CUDA support
7b9131da CUDA: Add tests to verify CUDA compiler works properly.
9cf5b98d CUDA: Prefer environment variables CUDACXX and CUDAHOSTCXX.
a5e806b3 CUDA: Add support for CMAKE_CUDA_COMPILE_OPTIONS_VISIBILITY
d038559e CUDA: Add separable compilation support to the makefile generator.
43ce4414 CUDA: Add separable compilation support to the ninja generator.
4b316097 CUDA: Add support for the CUDA_SEPARABLE_COMPILATION target property
ae05fcc6 CUDA: Add LinkLineComputer that computes cuda dlink lines.
115269a8 CUDA: Refactor cmLinkLineComputer to allow for better derived children.
5dec4031 CUDA: Refactor CMakeCUDAInformation to prepare for separable compilation.
5b20d0ab CUDA: C++ compile features now enable cuda c++11 support.
489c52ce CUDA: Use the host compiler for linking CUDA executables and shared libs.
bbaf2434 CUDA: add support for specifying an explicit host compiler.
a92f8d96 CUDA: Enable header dependency scanning.
ec6ce623 CUDA: State that cuda has preprocessor output and can generate assembly.
4f5155f6 CUDA: We now properly perform CUDA compiler identification.
...

Help/manual/cmake-properties.7.rst

@@ -143,6 +143,7 @@ Properties on Targets
    /prop_tgt/CONFIG_OUTPUT_NAME
    /prop_tgt/CONFIG_POSTFIX
    /prop_tgt/CROSSCOMPILING_EMULATOR
+   /prop_tgt/CUDA_SEPARABLE_COMPILATION
    /prop_tgt/CXX_EXTENSIONS
    /prop_tgt/CXX_STANDARD
    /prop_tgt/CXX_STANDARD_REQUIRED

Help/prop_tgt/CUDA_SEPARABLE_COMPILATION.rst

@@ -0,0 +1,13 @@
+CUDA_SEPARABLE_COMPILATION
+--------------------------
+
+CUDA only: Enables separate compilation of device code
+
+If set this will enable separable compilation for all CUDA files for
+the given target.
+
+For instance:
+
+.. code-block:: cmake
+
+  set_property(TARGET myexe PROPERTY CUDA_SEPARABLE_COMPILATION ON)

Help/release/dev/CUDA-language-support.rst

@@ -0,0 +1,6 @@
+CUDA-language-support
+---------------------
+
+* CMake learned to support CUDA as a first-class language.
+  It is supported by the :ref:`Makefile Generators` and the
+  :generator:`Ninja` generator.