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42 lines
1.8 KiB
42 lines
1.8 KiB
CMAKE_<LANG>_FLAGS
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------------------
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Language-wide flags for language ``<LANG>`` used when building for
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all configurations. These flags will be passed to all invocations
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of the compiler. This includes invocations that drive compiling
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and those that drive linking.
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For each language, if this variable is not defined, it is initialized
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and stored in the cache using values from environment variables in
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combination with CMake's builtin defaults for the toolchain:
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* ``CMAKE_C_FLAGS``:
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Initialized by the :envvar:`CFLAGS` environment variable.
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* ``CMAKE_CXX_FLAGS``:
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Initialized by the :envvar:`CXXFLAGS` environment variable.
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* ``CMAKE_CUDA_FLAGS``:
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Initialized by the :envvar:`CUDAFLAGS` environment variable.
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* ``CMAKE_Fortran_FLAGS``:
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Initialized by the :envvar:`FFLAGS` environment variable.
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* ``CMAKE_CSharp_FLAGS``:
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Initialized by the :envvar:`CSFLAGS` environment variable.
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* ``CMAKE_HIP_FLAGS``:
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Initialized by the :envvar:`HIPFLAGS` environment variable.
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* ``CMAKE_ISPC_FLAGS``:
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Initialized by the :envvar:`ISPCFLAGS` environment variable.
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* ``CMAKE_OBJC_FLAGS``:
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Initialized by the :envvar:`OBJCFLAGS` environment variable.
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* ``CMAKE_OBJCXX_FLAGS``:
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Initialized by the :envvar:`OBJCXXFLAGS` environment variable.
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This value is a command-line string fragment. Therefore, multiple options
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should be separated by spaces, and options with spaces should be quoted.
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The flags in this variable will be passed before those in the
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per-configuration :variable:`CMAKE_<LANG>_FLAGS_<CONFIG>` variable.
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On invocations driving compiling, flags from both variables will be passed
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before flags added by commands such as :command:`add_compile_options` and
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:command:`target_compile_options`. On invocations driving linking,
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they will be passed before flags added by commands such as
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:command:`add_link_options` and :command:`target_link_options`.
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