Document --write-ghc-environment-files. [ci skip]

parent 82673e1d
......@@ -1924,6 +1924,21 @@ running ``setup haddock``. (TODO: Where does the documentation get put.)
Advanced global configuration options
-------------------------------------
.. cfg-field:: write-ghc-environment-files: always, never, or ghc-8.4.4+
--write-ghc-enviroment-files=policy
:synopsis: Whether a ``.ghc.enviroment`` should be created after a successful build.
:default: ``ghc-8.4.4+``
Whether a `GHC package environment file <https://downloads.haskell.org/~ghc/master/users-guide/packages.html#package-environments>`_
should be created after a successful build.
Defaults to creating them only when compiling with GHC 8.4.4 and
older (GHC 8.4.4 `is the first version <https://ghc.haskell.org/trac/ghc/ticket/13753>`_ that supports the
``-package-env -`` option that allows ignoring the package
environment files).
.. cfg-field:: http-transport: curl, wget, powershell, or plain-http
--http-transport=transport
:synopsis: Transport to use with http(s) requests.
......
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