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

Provides :
ghc-hpack
ghc-hpack(x86-64)
libHShpack-0.28.1-1MKGaNHPU6uL1iagcuxlTL-ghc8.4.1.so()(64bit)

Requires :

libHStransformers-compat-0.6.0.6-HgbwBqjseSq2lVOIBzslZ-ghc8.4.1.so()(64bit)
libHSuuid-types-1.0.3-76pWajxAr0qIqmVDygYnIp-ghc8.4.1.so()(64bit)
libHSmono-traversable-1.0.8.1-AZ6nGUr3VtM2Fp8ARM8hqh-ghc8.4.1.so()(64bit)
libHSdlist-0.8.0.4-HKvnjzqMPICHGcNIet7TcN-ghc8.4.1.so()(64bit)
libHSunliftio-core-0.1.1.0-4YTby8dEJ5LLMK4AdT4sjU-ghc8.4.1.so()(64bit)
libHSvector-algorithms-0.7.0.1-Bhdp2JpuUJ0CdrX2bsn6P6-ghc8.4.1.so()(64bit)
libHSsemigroups-0.18.4-38OPGmMfh928ND3Gy7Pzxr-ghc8.4.1.so()(64bit)
libHSattoparsec-0.13.2.2-3BkGVuOn2dQH7RBDbxwnaS-ghc8.4.1.so()(64bit)
libHSaeson-1.2.4.0-86Z5U20hd0h69EAtW5mOUu-ghc8.4.1.so()(64bit)
libHSvector-0.12.0.1-ANruhCPvY6kWtnXdtpuVt-ghc8.4.1.so()(64bit)
libHSprimitive-0.6.3.0-CjyqfzwbTeFC8kYPPNlX3M-ghc8.4.1.so()(64bit)
libHSinteger-logarithms-1.0.2.1-3OoryR65EVrLEbz98stWhu-ghc8.4.1.so()(64bit)
libHSarray-0.5.2.0-ghc8.4.1.so()(64bit)
libHSasn1-types-0.3.2-HR8dXlJrlrQKE6Mg6TbsTr-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)
libHSyaml-0.8.28-2wLjhMOoO961oUJLxzQhMW-ghc8.4.1.so()(64bit)
libHSGlob-0.9.2-1yS3J7n5V5dFr3Qe9d2yzL-ghc8.4.1.so()(64bit)
libHSbasement-0.0.7-KtemoQnwEzeI5qSXLhqgSU-ghc8.4.1.so()(64bit)
libHSprocess-1.6.3.0-ghc8.4.1.so()(64bit)
libHSx509-store-1.6.6-1RFVY6Pa0QGE8yqdKFPCBO-ghc8.4.1.so()(64bit)
libHSconduit-1.3.0.1-K7b4w2ttPpsHLOdr5jdcPK-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)
libHSbase-4.11.0.0-ghc8.4.1.so()(64bit)
libgmp.so.10()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libHSx509-1.7.3-CcleQEPaDoxLslhHcWuPIB-ghc8.4.1.so()(64bit)
libutil.so.1()(64bit)
libHSbyteable-0.1.1-FZ8RLCFj2bwHtMp2zxI4CJ-ghc8.4.1.so()(64bit)
libHScontravariant-1.4.1-F8SpbnNWqNNJhj5mPNEODa-ghc8.4.1.so()(64bit)
libHScase-insensitive-1.2.0.11-8AXw0qcdEFT1EwFpSGKdNx-ghc8.4.1.so()(64bit)
libHSmime-types-0.1.0.7-IKVV59lGsb09XB32FVvkLE-ghc8.4.1.so()(64bit)
libHSdirectory-1.3.1.5-ghc8.4.1.so()(64bit)
libHStime-locale-compat-0.1.1.3-Ap8qLd3PBN2buwmThh1gj-ghc8.4.1.so()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
libHSCabal-2.2.0.0-ghc8.4.1.so()(64bit)
libHSbinary-0.8.5.1-ghc8.4.1.so()(64bit)
rpmlib(PayloadIsLzma) <= 4.4.6-1
libHShttp-client-tls-0.3.5.3-9UPBWpe4SpX7Kgk75paiaj-ghc8.4.1.so()(64bit)
libHSfilepath-1.4.2-ghc8.4.1.so()(64bit)
libHSmemory-0.14.16-AxezPTj7bfBF3bStNMxUEA-ghc8.4.1.so()(64bit)
libHScereal-0.5.5.0-2d9iZNSj0MaHJ9mjt7bNiW-ghc8.4.1.so()(64bit)
libHSasn1-parse-0.9.4-1ny8AQEcYy12NSpU0586zw-ghc8.4.1.so()(64bit)
libHStls-1.4.1-GMWHd1AVguW641faHwHGST-ghc8.4.1.so()(64bit)
libHSdistributive-0.5.3-6D1wGibEpPR2o3MXWqjJPZ-ghc8.4.1.so()(64bit)
libHSexceptions-0.8.3-9ZjCenuovHtEJoleaG90cU-ghc8.4.1.so()(64bit)
libHSasn1-encoding-0.9.5-7TkxbIaNMdR93TJfbHAOxQ-ghc8.4.1.so()(64bit)
libHScryptonite-0.25-9M230rfM0C6J0lqyvZdDKw-ghc8.4.1.so()(64bit)
libc.so.6()(64bit)
libHShttp-types-0.12.1-2ivLhR3tIB7A1NKuzz4Xnq-ghc8.4.1.so()(64bit)
libHShttp-client-0.5.11-5IccEaMdnkD5cJTH2v2MJB-ghc8.4.1.so()(64bit)
librt.so.1()(64bit)
libHScookie-0.4.4-7MGjkzRSdMg7I2EOC5V0xU-ghc8.4.1.so()(64bit)
libHSconnection-0.2.8-AmGKAhW71sJLGre1I6xqhh-ghc8.4.1.so()(64bit)
libHSsplit-0.2.3.3-KXnkaQ60rB8KkffQAVXi1g-ghc8.4.1.so()(64bit)
libHSnetwork-uri-2.6.1.0-35c83y7M01aFyfbOESlGxm-ghc8.4.1.so()(64bit)
libHSpem-0.2.4-IpHfoErMvpxEP6mAJLHoPA-ghc8.4.1.so()(64bit)
libHSzlib-0.6.2-499N3oUwd8nF2FI93hZ1SG-ghc8.4.1.so()(64bit)
libHScontainers-0.5.11.0-ghc8.4.1.so()(64bit)
libHSfoundation-0.0.20-IsI84Mg7xxY8kaYOVzwpni-ghc8.4.1.so()(64bit)
libHSresourcet-1.2.0-FYOp8P7FYP1Cpriv4ixUkA-ghc8.4.1.so()(64bit)
libdl.so.2()(64bit)
libHScomonad-5.0.3-FCKMzTf8IHQJiUK7Bo7xTu-ghc8.4.1.so()(64bit)
libHShourglass-0.2.11-FIPNspohFfvH8u3QKMzCkv-ghc8.4.1.so()(64bit)
libHSinteger-gmp-1.0.1.0-ghc8.4.1.so()(64bit)
libHStime-1.8.0.2-ghc8.4.1.so()(64bit)
libHStransformers-0.5.5.0-ghc8.4.1.so()(64bit)
libHSth-abstraction-0.2.6.0-AxKETn9xnvy1NIoJGfKwUs-ghc8.4.1.so()(64bit)
libHSnetwork-2.6.3.4-7HxGKupjap18PmJuhYUMzw-ghc8.4.1.so()(64bit)
libHSrandom-1.1-Bzf9YW9nFUS5UwW0OIfLBC-ghc8.4.1.so()(64bit)
libHSsocks-0.5.6-9aGMoU9n1BI685FhGbaCEx-ghc8.4.1.so()(64bit)
libHSstreaming-commons-0.2.0.0-9OhlhLIKhdX1xpvRtIrmEj-ghc8.4.1.so()(64bit)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libHSx509-system-1.6.6-AvsUGv18T7UGx6vtmeS1Mq-ghc8.4.1.so()(64bit)
libHSunordered-containers-0.2.9.0-GVeyBi4ueokHe3mExM0LfQ-ghc8.4.1.so()(64bit)
libpthread.so.0()(64bit)
libHSStateVar-1.1.0.4-86fxpxZZPoW6eJxxXOePh2-ghc8.4.1.so()(64bit)
libHSasync-2.2.1-1HDifB811KbLwtgAh5e06R-ghc8.4.1.so()(64bit)
libHSblaze-builder-0.4.1.0-1lQcalGyz5S87Rx0azM34-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)
libHSstm-2.4.5.0-ghc8.4.1.so()(64bit)
libHSbase-compat-0.9.3-1eIWI9OhZ8D2nYdC3nZAxC-ghc8.4.1.so()(64bit)
libm.so.6()(64bit)
libHShashable-1.2.7.0-KWvGBYL0Jo55TkgBYXSXSN-ghc8.4.1.so()(64bit)
libHSx509-validation-1.6.10-KdvShRxwVnwLpR2a8h93QT-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)
libHSpretty-1.1.3.6-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)
libHSdata-default-class-0.1.2.0-8rqMlc0UYLx54j6qpZr07a-ghc8.4.1.so()(64bit)
libz.so.1()(64bit)
libHSscientific-0.3.5.3-4by1ADJdqOwEBNSaNDwNzq-ghc8.4.1.so()(64bit)

Content of RPM :
/usr/lib64/ghc-8.4.1/hpack-0.28.1-1MKGaNHPU6uL1iagcuxlTL
/usr/lib64/ghc-8.4.1/hpack-0.28.1-1MKGaNHPU6uL1iagcuxlTL/libHShpack-0.28.1-1MKGaNHPU6uL1iagcuxlTL-ghc8.4.1.so
/usr/share/doc/packages/ghc-hpack
/usr/share/doc/packages/ghc-hpack/LICENSE