Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
ghc-language-nix
ghc-language-nix(x86-64)
libHSlanguage-nix-2.1.0.1-1MX1cLEYkih9wiT6MsxN9C-ghc8.4.1.so()(64bit)

Requires :

libc.so.6()(64bit)
libHStransformers-compat-0.6.0.6-HgbwBqjseSq2lVOIBzslZ-ghc8.4.1.so()(64bit)
libHSparallel-3.2.1.1-92VhYL4ho2hDgC9jrNFqUp-ghc8.4.1.so()(64bit)
libHSprofunctors-5.2.2-4PESlNwkkA4BHXecvgKw7V-ghc8.4.1.so()(64bit)
libHSlens-4.16-DWC10QZf5UFCiBpR3d1llK-ghc8.4.1.so()(64bit)
libHSadjunctions-4.4-3h4bXleJJsrDXBFQK9mOUw-ghc8.4.1.so()(64bit)
libHSsemigroups-0.18.4-38OPGmMfh928ND3Gy7Pzxr-ghc8.4.1.so()(64bit)
librt.so.1()(64bit)
libHSvector-0.12.0.1-ANruhCPvY6kWtnXdtpuVt-ghc8.4.1.so()(64bit)
libHSprimitive-0.6.3.0-CjyqfzwbTeFC8kYPPNlX3M-ghc8.4.1.so()(64bit)
libHSarray-0.5.2.0-ghc8.4.1.so()(64bit)
libHSreflection-2.1.3-9TcVVentlk8CP2sdqM4bnM-ghc8.4.1.so()(64bit)
libHSunix-2.7.2.2-ghc8.4.1.so()(64bit)
libHStemplate-haskell-2.13.0.0-ghc8.4.1.so()(64bit)
libHSmtl-2.2.2-ghc8.4.1.so()(64bit)
libHStagged-0.8.5-KZCg0OnZiAB2QKmctiBGrw-ghc8.4.1.so()(64bit)
libHScontainers-0.5.11.0-ghc8.4.1.so()(64bit)
libHSsemigroupoids-5.2.2-DTSnoFz9Luof4EFZQWOhz-ghc8.4.1.so()(64bit)
libHSprocess-1.6.3.0-ghc8.4.1.so()(64bit)
libdl.so.2()(64bit)
libHStf-random-0.5-B7zGVOdpiyD1rsha09vD88-ghc8.4.1.so()(64bit)
libHSparsec-3.1.13.0-ghc8.4.1.so()(64bit)
libHSbifunctors-5.5.2-8YEkHdL9dwPJRWiZoOrI92-ghc8.4.1.so()(64bit)
libHScomonad-5.0.3-FCKMzTf8IHQJiUK7Bo7xTu-ghc8.4.1.so()(64bit)
libHSinteger-gmp-1.0.1.0-ghc8.4.1.so()(64bit)
libHSbase-4.11.0.0-ghc8.4.1.so()(64bit)
libgmp.so.10()(64bit)
libHStime-1.8.0.2-ghc8.4.1.so()(64bit)
libHSfree-5.0.1-AA9gafLV6lWEI4XDp27ZlS-ghc8.4.1.so()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libHStransformers-0.5.5.0-ghc8.4.1.so()(64bit)
libHSth-abstraction-0.2.6.0-AxKETn9xnvy1NIoJGfKwUs-ghc8.4.1.so()(64bit)
libutil.so.1()(64bit)
libHScall-stack-0.1.0-3E8xkqzWv4WBvTyYNtXre0-ghc8.4.1.so()(64bit)
libHSrandom-1.1-Bzf9YW9nFUS5UwW0OIfLBC-ghc8.4.1.so()(64bit)
libHScontravariant-1.4.1-F8SpbnNWqNNJhj5mPNEODa-ghc8.4.1.so()(64bit)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libHSunordered-containers-0.2.9.0-GVeyBi4ueokHe3mExM0LfQ-ghc8.4.1.so()(64bit)
libHSdirectory-1.3.1.5-ghc8.4.1.so()(64bit)
libpthread.so.0()(64bit)
libHSStateVar-1.1.0.4-86fxpxZZPoW6eJxxXOePh2-ghc8.4.1.so()(64bit)
libHStransformers-base-0.4.4-IUgMz8sHmyVJHwp8lU6Aat-ghc8.4.1.so()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
libHSstm-2.4.5.0-ghc8.4.1.so()(64bit)
libHSdeepseq-1.4.3.0-ghc8.4.1.so()(64bit)
libHSbase-orphans-0.7-BhQxOsSKeJK5cMS8lLemv-ghc8.4.1.so()(64bit)
libHSCabal-2.2.0.0-ghc8.4.1.so()(64bit)
libHSbinary-0.8.5.1-ghc8.4.1.so()(64bit)
libHSbase-compat-0.9.3-1eIWI9OhZ8D2nYdC3nZAxC-ghc8.4.1.so()(64bit)
rpmlib(PayloadIsLzma) <= 4.4.6-1
libHSfilepath-1.4.2-ghc8.4.1.so()(64bit)
libm.so.6()(64bit)
libHShashable-1.2.7.0-KWvGBYL0Jo55TkgBYXSXSN-ghc8.4.1.so()(64bit)
libHSghc-prim-0.5.2.0-ghc8.4.1.so()(64bit)
libHSbytestring-0.10.8.2-ghc8.4.1.so()(64bit)
libHSkan-extensions-5.1-Biz7slFMXIL7ck8Dg83WIN-ghc8.4.1.so()(64bit)
libHSQuickCheck-2.11.3-D8IGkGDs8vDJQsocpYsyNz-ghc8.4.1.so()(64bit)
libHSpretty-1.1.3.6-ghc8.4.1.so()(64bit)
libHSdistributive-0.5.3-6D1wGibEpPR2o3MXWqjJPZ-ghc8.4.1.so()(64bit)
libHSghc-boot-th-8.4.1-ghc8.4.1.so()(64bit)
libHStext-1.2.3.0-ghc8.4.1.so()(64bit)
libHSexceptions-0.8.3-9ZjCenuovHtEJoleaG90cU-ghc8.4.1.so()(64bit)
libHSvoid-0.7.2-6nj4zRuM8LB8bsxdyfvxDc-ghc8.4.1.so()(64bit)

Content of RPM :
/usr/lib64/ghc-8.4.1/language-nix-2.1.0.1-1MX1cLEYkih9wiT6MsxN9C
/usr/lib64/ghc-8.4.1/language-nix-2.1.0.1-1MX1cLEYkih9wiT6MsxN9C/libHSlanguage-nix-2.1.0.1-1MX1cLEYkih9wiT6MsxN9C-ghc8.4.1.so
/usr/share/doc/packages/ghc-language-nix
/usr/share/doc/packages/ghc-language-nix/LICENSE