I can't install happstack-server on Windows

[GilmarCorreia]

Hello happstack team,

I'm trying to install happstack-server on Windows, but I'm getting this problem:

WARNING: Ignoring sendfile's bounds on Win32 (>=2.2.0.0 && <2.3); using Win32-2.6.1.0.
Reason: trusting snapshot over cabal file dependency information.
sendfile        > configure
sendfile        > Configuring sendfile-0.7.11.1...
sendfile        > build
sendfile        > Preprocessing library for sendfile-0.7.11.1..
sendfile        > Building library for sendfile-0.7.11.1..
sendfile        > [1 of 7] Compiling Network.Socket.SendFile.Iter
sendfile        > [2 of 7] Compiling Network.Socket.SendFile.Util
sendfile        > [3 of 7] Compiling Network.Socket.SendFile.Portable
sendfile        >
sendfile        > src\Network\Socket\SendFile\Portable.hs:22:1: warning: [-Wdodgy-imports]
sendfile        >     The import item `Socket(..)' suggests that
sendfile        >     `Socket' has (in-scope) constructors or class methods,
sendfile        >     but it has none
sendfile        >    |
sendfile        > 22 | import Network.Socket (Socket(..), fdSocket)
sendfile        >    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
sendfile        >
sendfile        > src\Network\Socket\SendFile\Portable.hs:79:25: warning: [-Wdeprecations]
sendfile        >     In the use of `fdSocket'
sendfile        >     (imported from Network.Socket, but defined in network-3.1.1.1:Network.Socket.Types):
sendfile        >     Deprecated: "Use withFdSocket or unsafeFdSocket instead"
sendfile        >    |
sendfile        > 79 |           then do fd <- fdSocket socket
sendfile        >    |                         ^^^^^^^^
sendfile        > [4 of 7] Compiling Network.Socket.SendFile.Win32
sendfile        >
sendfile        > src\Network\Socket\SendFile\Win32.hsc:103:1: error:
sendfile        >     * Unacceptable result type in foreign declaration:
sendfile        >         `IntPtr' cannot be marshalled in a foreign call
sendfile        >           because its data constructor is not in scope
sendfile        >           Possible fix: import the data constructor to bring it into scope
sendfile        >     * When checking declaration:
sendfile        >         foreign import ccall unsafe "io.h _get_osfhandle" c_get_osfhandle
sendfile        >           :: Fd -> IO IntPtr
sendfile        >     |
sendfile        > 103 | foreign import ccall unsafe "io.h _get_osfhandle"
sendfile        >     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...
sendfile        >
Progress 1/2

--  While building package sendfile-0.7.11.1 (scroll up to its section to see the error) using:
      C:\sr\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_3.0.1.0_ghc-8.8.4.exe --builddir=.stack-work\dist\29cc6475 build --ghc-options " -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1

How can I solve this problem?

[stepcut]

This may be fixed in sendfile-0.7.11.4 but I do not have a Windows build environment in which to test.