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

Provides :
ghc-hpack
ghc-hpack(x86-64)
libHShpack-0.31.1-JYFfSnuraiKD5UfrYIi504-ghc8.6.3.so()(64bit)

Requires :

libHSCabal-2.4.0.1-ghc8.6.3.so()(64bit)
libHSGlob-0.9.3-4qgCsmjREM6LapsbF9vK3F-ghc8.6.3.so()(64bit)
libHSStateVar-1.1.1.1-B0ospHKg13JCxw6f0gS05h-ghc8.6.3.so()(64bit)
libHSaeson-1.4.2.0-7pbp2g4gb0mK54cWJdQQGv-ghc8.6.3.so()(64bit)
libHSarray-0.5.3.0-ghc8.6.3.so()(64bit)
libHSasn1-encoding-0.9.5-23UYxahU2Z1BOBxoBRNCWn-ghc8.6.3.so()(64bit)
libHSasn1-parse-0.9.4-BScyGuv2BYO6loqa6EtF7v-ghc8.6.3.so()(64bit)
libHSasn1-types-0.3.2-maKO7uGsBm1nq31PERdQ5-ghc8.6.3.so()(64bit)
libHSasync-2.2.1-4fWSSJ8SFccIxQJVItkRnX-ghc8.6.3.so()(64bit)
libHSattoparsec-0.13.2.2-AIDYee9KPGPHGyIUYFLj8F-ghc8.6.3.so()(64bit)
libHSbase-4.12.0.0-ghc8.6.3.so()(64bit)
libHSbase-compat-0.10.5-FRXoAxOVtbG2qLNIZm1tTr-ghc8.6.3.so()(64bit)
libHSbase-orphans-0.8-9c3aMxqS7QbGl4Ot5i8lwK-ghc8.6.3.so()(64bit)
libHSbasement-0.0.10-2z2JaOuy7fVLQL3Bi1dEbr-ghc8.6.3.so()(64bit)
libHSbifunctors-5.5.3-B8SgcEHKQh0DjZkOKfP6fo-ghc8.6.3.so()(64bit)
libHSbinary-0.8.6.0-ghc8.6.3.so()(64bit)
libHSblaze-builder-0.4.1.0-KrFxFv3kgua3BTNMsMBadC-ghc8.6.3.so()(64bit)
libHSbyteable-0.1.1-9guyEXUUK503mzSnI32g2S-ghc8.6.3.so()(64bit)
libHSbytestring-0.10.8.2-ghc8.6.3.so()(64bit)
libHScase-insensitive-1.2.0.11-GGYU9CY9cs88wywgwHVKC6-ghc8.6.3.so()(64bit)
libHScereal-0.5.8.0-6rtfJLvNbgP66iuaPkuxJC-ghc8.6.3.so()(64bit)
libHScomonad-5.0.4-4SwhkNnNOQxAjtcsZzTU0r-ghc8.6.3.so()(64bit)
libHSconduit-1.3.1-HCgbvfqUcDo8I2LqNfbea9-ghc8.6.3.so()(64bit)
libHSconnection-0.2.8-9g7XuUmgQEmwYcBu62P4C-ghc8.6.3.so()(64bit)
libHScontainers-0.6.0.1-ghc8.6.3.so()(64bit)
libHScontravariant-1.5-FpGwhn5fmC2IfBjNJ4PaUQ-ghc8.6.3.so()(64bit)
libHScookie-0.4.4-KpjAlIew5oQDgqXiPeQJ63-ghc8.6.3.so()(64bit)
libHScryptonite-0.25-9ZpoZAjm2TWJyKYhUO1AWJ-ghc8.6.3.so()(64bit)
libHSdata-default-class-0.1.2.0-FeIQ5tLoVZBHMSgrT9zptQ-ghc8.6.3.so()(64bit)
libHSdeepseq-1.4.4.0-ghc8.6.3.so()(64bit)
libHSdirectory-1.3.3.0-ghc8.6.3.so()(64bit)
libHSdistributive-0.6-92l65SKyutnKeo53jXpu6I-ghc8.6.3.so()(64bit)
libHSdlist-0.8.0.5-FMMQwM1hD2kK7b7715Z2vG-ghc8.6.3.so()(64bit)
libHSexceptions-0.10.0-BnlDnmyiBJAJpiMydyJ3Ov-ghc8.6.3.so()(64bit)
libHSfilepath-1.4.2.1-ghc8.6.3.so()(64bit)
libHSghc-boot-th-8.6.3-ghc8.6.3.so()(64bit)
libHSghc-prim-0.5.3-ghc8.6.3.so()(64bit)
libHShashable-1.2.7.0-CWI8VZuQTAYWIQTQQtqCV-ghc8.6.3.so()(64bit)
libHShourglass-0.2.12-333qxqQQ3eK9Jo0nKcpgW5-ghc8.6.3.so()(64bit)
libHShttp-client-0.5.14-6bckfHtVufh9gMjHwTPV4h-ghc8.6.3.so()(64bit)
libHShttp-client-tls-0.3.5.3-FmzdhpTAk12ERlHBh9yVJh-ghc8.6.3.so()(64bit)
libHShttp-types-0.12.2-3GI9ZSQctllDxYJpnDXS0X-ghc8.6.3.so()(64bit)
libHSinfer-license-0.2.0-KnIotEfJmjELn6rKPIuB1F-ghc8.6.3.so()(64bit)
libHSinteger-gmp-1.0.2.0-ghc8.6.3.so()(64bit)
libHSinteger-logarithms-1.0.2.2-IT1M1moCo0mIobW8LfdrSC-ghc8.6.3.so()(64bit)
libHSlibyaml-0.1.0.0-5QLJnqbkFST4ElZDdJyVC9-ghc8.6.3.so()(64bit)
libHSmemory-0.14.18-KyYdFaXxUmW9l7sgRN1wes-ghc8.6.3.so()(64bit)
libHSmime-types-0.1.0.9-IuKFWuzgmF26e9nOlDWqrD-ghc8.6.3.so()(64bit)
libHSmono-traversable-1.0.11.0-Adxv2uUM29P72moJC0AtiC-ghc8.6.3.so()(64bit)
libHSmtl-2.2.2-ghc8.6.3.so()(64bit)
libHSnetwork-2.8.0.0-AkCJm1aNSYz7ekXKYyI0pF-ghc8.6.3.so()(64bit)
libHSnetwork-uri-2.6.1.0-K75fCYvLQE41EntOQ30cqK-ghc8.6.3.so()(64bit)
libHSparsec-3.1.13.0-ghc8.6.3.so()(64bit)
libHSpem-0.2.4-ZvNxO6YMHNAptXRjaxddy-ghc8.6.3.so()(64bit)
libHSpretty-1.1.3.6-ghc8.6.3.so()(64bit)
libHSprimitive-0.6.4.0-1mvPxVOk6Q6KOkWCZxqESf-ghc8.6.3.so()(64bit)
libHSprocess-1.6.3.0-ghc8.6.3.so()(64bit)
libHSrandom-1.1-3ypV4EIycgb35PKjTYYr5q-ghc8.6.3.so()(64bit)
libHSresourcet-1.2.2-IXdFBf5BlLw4948cPyP8vb-ghc8.6.3.so()(64bit)
libHSscientific-0.3.6.2-KIIlODNgUeO9twnHef2PBn-ghc8.6.3.so()(64bit)
libHSsemigroups-0.18.5-6T2lH5F6zyQIdwR3JYKMO3-ghc8.6.3.so()(64bit)
libHSsocks-0.5.6-3sLchFRTlVdI5As1kxtZ7C-ghc8.6.3.so()(64bit)
libHSsplit-0.2.3.3-6n1iQ0JLFvkeXvJXsAqQc-ghc8.6.3.so()(64bit)
libHSstm-2.5.0.0-ghc8.6.3.so()(64bit)
libHSstreaming-commons-0.2.1.0-Gjsp3ARrjdWm3PJDtVFaz-ghc8.6.3.so()(64bit)
libHStagged-0.8.6-CAGIOj1cv5J42b7wUKOeE3-ghc8.6.3.so()(64bit)
libHStemplate-haskell-2.14.0.0-ghc8.6.3.so()(64bit)
libHStext-1.2.3.1-ghc8.6.3.so()(64bit)
libHStext-metrics-0.3.0-37OSKDL7BCxEGbyzzb2zkM-ghc8.6.3.so()(64bit)
libHSth-abstraction-0.2.10.0-IupKYUmBxoGBM1HXci6nJH-ghc8.6.3.so()(64bit)
libHStime-1.8.0.2-ghc8.6.3.so()(64bit)
libHStime-locale-compat-0.1.1.5-Et2KuIqhniaDySS0uBEPko-ghc8.6.3.so()(64bit)
libHStls-1.4.1-64vT91D1jWB3GBhhyOiUrY-ghc8.6.3.so()(64bit)
libHStransformers-0.5.5.0-ghc8.6.3.so()(64bit)
libHStransformers-compat-0.6.2-JV1ddSnlm3mL2xw4J4K8Kw-ghc8.6.3.so()(64bit)
libHSunix-2.7.2.2-ghc8.6.3.so()(64bit)
libHSunliftio-core-0.1.2.0-6l4GP0ylCTM6crlVTDgRiK-ghc8.6.3.so()(64bit)
libHSunordered-containers-0.2.9.0-BRWkoSTuML1cQdpep6Oin-ghc8.6.3.so()(64bit)
libHSuuid-types-1.0.3-Awdp9gd30rf4a5QKzt7fjH-ghc8.6.3.so()(64bit)
libHSvector-0.12.0.2-5G85DK6NPIx1LphnqJy7eO-ghc8.6.3.so()(64bit)
libHSvector-algorithms-0.8.0.1-l02fj2Jj9pCux4dolCIMf-ghc8.6.3.so()(64bit)
libHSx509-1.7.5-KPogm2ladO8J5k0cV18Hf2-ghc8.6.3.so()(64bit)
libHSx509-store-1.6.7-9UImtBHHpWIDw8DqhPp409-ghc8.6.3.so()(64bit)
libHSx509-system-1.6.6-5Ig01jeHmthHeuhEgz9UJl-ghc8.6.3.so()(64bit)
libHSx509-validation-1.6.11-AGYSnK7guTrK5ueVHcJWZf-ghc8.6.3.so()(64bit)
libHSyaml-0.11.0.0-FUXBDVWnKbpEKDGQCjbdO0-ghc8.6.3.so()(64bit)
libHSzlib-0.6.2-BdOecmQ0rL1HOiGypdSgxY-ghc8.6.3.so()(64bit)
libatomic.so.1()(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libdl.so.2()(64bit)
libgmp.so.10()(64bit)
libm.so.6()(64bit)
libpthread.so.0()(64bit)
librt.so.1()(64bit)
libutil.so.1()(64bit)
libz.so.1()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1

Content of RPM :
/usr/lib64/ghc-8.6.3/hpack-0.31.1-JYFfSnuraiKD5UfrYIi504
/usr/lib64/ghc-8.6.3/hpack-0.31.1-JYFfSnuraiKD5UfrYIi504/libHShpack-0.31.1-JYFfSnuraiKD5UfrYIi504-ghc8.6.3.so
/usr/share/licenses/ghc-hpack
/usr/share/licenses/ghc-hpack/LICENSE