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Diffstat (limited to 'docs/users_guide/using.rst')
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diff --git a/docs/users_guide/using.rst b/docs/users_guide/using.rst index a963ead8f1..e3fa74127e 100644 --- a/docs/users_guide/using.rst +++ b/docs/users_guide/using.rst @@ -1064,3 +1064,26 @@ Some flags only make sense for particular target platforms. and later). The :ref:`LLVM backend <llvm-code-gen>` will also use SSE4.2 if your processor supports it but detects this automatically so no flag is required. + +Miscellaneous flags +------------------- + +.. index:: + single: miscellaneous flags + +Some flags only make sense for a particular use case. + +.. ghc-flag:: -ghc-version ⟨path to ghcversion.h⟩ + :shortdesc: (GHC as a C compiler only) Use this ``ghcversion.h`` file + :type: dynamic + :category: misc + + When GHC is used to compile C files, GHC adds package include paths and + includes ``ghcversion.h`` directly. The compiler will lookup the path for + the ``ghcversion.h`` file from the ``rts`` package in the package database. + In some cases, the compiler's package database does not contain the ``rts`` + package, or one wants to specify a specific ``ghcversions.h`` to be + included. This option can be used to specify the path to the + ``ghcversions.h`` file to be included. This is primarily intended to be + used by GHC's build system. + |