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528e8af19f
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.
16 lines
646 B
ReStructuredText
16 lines
646 B
ReStructuredText
CMAKE_GENERATOR_TOOLSET
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-----------------------
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Native build system toolset name specified by user.
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Some CMake generators support a toolset name to be given to the native
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build system to choose a compiler. If the user specifies a toolset
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name (e.g. via the cmake -T option) the value will be available in
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this variable.
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The value of this variable should never be modified by project code.
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A toolchain file specified by the :variable:`CMAKE_TOOLCHAIN_FILE`
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variable may initialize ``CMAKE_GENERATOR_TOOLSET``. Once a given
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build tree has been initialized with a particular value for this
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variable, changing the value has undefined behavior.
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