Add a 'Green Hills MULTI' generator on Windows

Green Hills MULTI is an IDE for embedded real-time systems.  The IDE's
product page can be found here:

 http://www.ghs.com/products/MULTI_IDE.html

It supports cross compiling on ARM, Intel x86, and other architectures
with various operating systems.  The IDE exists on Linux and Windows
host systems, but CMake will currently only generate the project files
on Windows host systems.

Help/generator/Green Hills MULTI.rst

@@ -0,0 +1,16 @@
+Green Hills MULTI
+-----------------
+
+Generates Green Hills MULTI project files (experimental, work-in-progress).
+
+Customizations are available through the following cache variables:
+
+* ``GHS_BSP_NAME``
+* ``GHS_CUSTOMIZATION``
+* ``GHS_GPJ_MACROS``
+* ``GHS_OS_DIR``
+
+.. note::
+  This generator is deemed experimental as of CMake |release|
+  and is still a work in progress.  Future versions of CMake
+  may make breaking changes as the generator matures.

Help/manual/cmake-generators.7.rst

@@ -73,6 +73,7 @@ Visual Studio Generators
 .. toctree::
    :maxdepth: 1
 
+   /generator/Green Hills MULTI
    /generator/Visual Studio 6
    /generator/Visual Studio 7
    /generator/Visual Studio 7 .NET 2003

Help/manual/cmake-variables.7.rst

@@ -182,6 +182,7 @@ Variables that Describe the System
    /variable/CMAKE_SYSTEM_VERSION
    /variable/CYGWIN
    /variable/ENV
+   /variable/GHS-MULTI
    /variable/MINGW
    /variable/MSVC10
    /variable/MSVC11
@@ -307,6 +308,10 @@ Variables for Languages
    /variable/CMAKE_LANG_FLAGS_RELEASE
    /variable/CMAKE_LANG_FLAGS_RELWITHDEBINFO
    /variable/CMAKE_LANG_FLAGS
+   /variable/CMAKE_LANG_GHS_KERNEL_FLAGS_DEBUG
+   /variable/CMAKE_LANG_GHS_KERNEL_FLAGS_MINSIZEREL
+   /variable/CMAKE_LANG_GHS_KERNEL_FLAGS_RELEASE
+   /variable/CMAKE_LANG_GHS_KERNEL_FLAGS_RELWITHDEBINFO
    /variable/CMAKE_LANG_IGNORE_EXTENSIONS
    /variable/CMAKE_LANG_IMPLICIT_INCLUDE_DIRECTORIES
    /variable/CMAKE_LANG_IMPLICIT_LINK_DIRECTORIES

Help/variable/CMAKE_LANG_GHS_KERNEL_FLAGS_DEBUG.rst

@@ -0,0 +1,6 @@
+CMAKE_<LANG>_GHS_KERNEL_FLAGS_DEBUG
+-----------------------------------
+
+GHS kernel flags for Debug build type or configuration.
+
+<LANG> flags used when CMAKE_BUILD_TYPE is Debug.

Help/variable/CMAKE_LANG_GHS_KERNEL_FLAGS_MINSIZEREL.rst

@@ -0,0 +1,7 @@
+CMAKE_<LANG>_GHS_KERNEL_FLAGS_MINSIZEREL
+----------------------------------------
+
+GHS kernel flags for MinSizeRel build type or configuration.
+
+<LANG> flags used when CMAKE_BUILD_TYPE is MinSizeRel.Short for
+minimum size release.

Help/variable/CMAKE_LANG_GHS_KERNEL_FLAGS_RELEASE.rst

@@ -0,0 +1,6 @@
+CMAKE_<LANG>_GHS_KERNEL_FLAGS_RELEASE
+-------------------------------------
+
+GHS kernel flags for Release build type or configuration.
+
+<LANG> flags used when CMAKE_BUILD_TYPE is Release

Help/variable/CMAKE_LANG_GHS_KERNEL_FLAGS_RELWITHDEBINFO.rst

@@ -0,0 +1,7 @@
+CMAKE_<LANG>_GHS_KERNEL_FLAGS_RELWITHDEBINFO
+--------------------------------------------
+
+GHS kernel flags for RelWithDebInfo type or configuration.
+
+<LANG> flags used when CMAKE_BUILD_TYPE is RelWithDebInfo.  Short for
+Release With Debug Information.

Help/variable/CMAKE_MAKE_PROGRAM.rst

@@ -56,6 +56,10 @@ to configure the project:
   the CMake cache then CMake will use the specified value if
   possible.
 
+* The :generator:`Green Hills MULTI` generator sets this to ``gbuild``.
+  If a user or project explicitly adds ``CMAKE_MAKE_PROGRAM`` to
+  the CMake cache then CMake will use the specified value.
+
 The ``CMAKE_MAKE_PROGRAM`` variable is set for use by project code.
 The value is also used by the :manual:`cmake(1)` ``--build`` and
 :manual:`ctest(1)` ``--build-and-test`` tools to launch the native

Help/variable/CMAKE_SYSTEM_PROCESSOR.rst

@@ -6,3 +6,5 @@ The name of the CPU CMake is building for.
 This variable is the same as :variable:`CMAKE_HOST_SYSTEM_PROCESSOR` if
 you build for the host system instead of the target system when
 cross compiling.
+
+* The Green Hills MULTI generator sets this to ``ARM`` by default

Help/variable/GHS-MULTI.rst

@@ -0,0 +1,4 @@
+GHS-MULTI
+---------
+
+True when using Green Hills MULTI