23 lines
976 B
ReStructuredText
23 lines
976 B
ReStructuredText
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Flags in Foreign Code
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---------------------
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Depending on the :doc:`dune-project/use_standard_c_and_cxx_flags` option,
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the base ``:standard`` set of flags for C will contain only ``ocamlc_cflags`` or
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both ``ocamlc_cflags`` and ``ocamlc_cppflags``.
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There are multiple levels where one can declare custom flags (using the
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:doc:`ordered-set-language`), and each level inherits the flags of the previous
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one in its `:standard` set:
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- In the global :doc:`dune-workspace/env` definition of a
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:doc:`dune-workspace/index` file
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- In the :doc:`per-context env <dune-workspace/context>` definitions in a
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:doc:`dune-workspace/index` file
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- In the :doc:`dune/env` definition of a :doc:`dune/index` file
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- In a :doc:`foreign_stubs <foreign-stubs>`, :doc:`foreign_library
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<foreign-archives>` or :doc:`extra_objects <extra-objects>` field of an
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executable or a library.
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The ``%{cc}`` :doc:`variable <../concepts/variables>` will contain the flags
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from the first three levels only.
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