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The names and formats of our VS flag tables are internal implementation
details. However, some institutions need to maintain support for
non-public VS platforms and toolsets. Provide a hook that their
projects can use to load custom flag table files. This helps avoid
distributing a custom CMake package within such institutions.
Document the hook itself, but explicitly specify that the files the
hook loads are not considered a stable interface.
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Fixes: #19708
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Documentation for environment variables that control the default
generator selection:
* CMAKE_GENERATOR
* CMAKE_GENERATOR_INSTANCE
* CMAKE_GENERATOR_PLATFORM
* CMAKE_GENERATOR_TOOLSET
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Generalize the ``host=x64`` option in `CMAKE_GENERATOR_TOOLSET`
to also support ``host=x86``.
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-- Use the specified toolset located within GHS_TOOLSET_ROOT
-- Update how the latest toolset is determined; scan the location GHS_TOOLSET_ROOT and sort it
No longer use registry settings looking for installations
The registry values are assigned in installation order for Green Hills tools not version order
-- Update to use gbuild.exe from the proper toolset
-- Clarify that CMAKE_MAKE_PROGRAM should not be set by user.
-- Detect some toolset changes when regenerating project files
This could occur if GHS_TOOLSET_ROOT was changed by user after the initial project generation
This could occur if CMAKE_MAKE_PROGRAM was changed at the command line
-- Use placeholder values for CMAKE_<LANG>_COMPILER
The MULTI build system only uses gbuild to build a project
gbuild uses the project file to determine which set of compilers to use based on target platform and architecture
because compiler detection is skipped, placeholder values are used so that CMake does not complain
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Add new `version=` parameter in the toolset setting to select the
version. Add variable `CMAKE_VS_PLATFORM_TOOLSET_VERSION` to hold the
version, if one is set (blank indicates default).
Fixes: #17549
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Move the details about support for generator toolset specification
to the `CMAKE_GENERATOR_TOOLSET` variable documentation. This is
a more suitable place because it is shared by all means to set this
variable, not just the `cmake -T` option.
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Improve formatting, primarily by:
* Adding links to relevant commands, properties, generators, and so on.
* Converting code, symbols, paths, and so on to fixed-width fonts.
* Hard wrapping lines to 80 characters or less.
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Delay use of CMAKE_GENERATOR_TOOLSET until the CMakeSystem.cmake
file has been configured and loaded during the first project() or
enable_language() command. This gives the toolchain file named by
CMAKE_TOOLCHAIN_FILE a chance to set CMAKE_GENERATOR_TOOLSET. This
point is still early enough to set the generator toolset prior to
the initialization of any languages that might use the toolset.
The cmake::GeneratorToolset member variable remains an indication
of what was specified by the -T option or loaded from the cache.
It does not need to be updated based on the toolchain file setting.
The cmMakefile::TryCompile can still pass cmake::GeneratorToolset
into the inner instance because the try-compiled project will do
platform and language initialization using the CMakeSystem module
configured for the outer project.
Extend the RunCMake.GeneratorToolset test with cases that use a
toolchain file to set CMAKE_GENERATOR_TOOLSET.
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Run the convert-help.bash script to convert documentation:
./convert-help.bash "/path/to/CMake-build/bin"
Then remove it.
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