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

Provides :
ghc(darcs-2.8.5-0fcf931d0db2e1f0c9257c1141df0a5d)
ghc-darcs
ghc-darcs(x86-64)
libHSdarcs-2.8.5-ghc7.8.4.so()(64bit)

Requires :

ghc(random-1.0.1.1-cb9cbae5b74a92852df1adbb0a3aa8d8)
libHSarray-0.5.0.0-ghc7.8.4.so()(64bit)
libHSold-time-1.1.0.2-ghc7.8.4.so()(64bit)
ghc(base-4.7.0.2-cb23b5265b6e147094c0cd9ac819acb1)
ghc(parsec-3.1.5-51b006adec60c0312a6076337b4afd53)
ghc(containers-0.5.5.1-d7910f1cd81272c1f31ca9f71d0f206e)
rtld(GNU_HASH)
libHSdataenc-0.14.0.7-ghc7.8.4.so()(64bit)
libHSzlib-0.5.4.1-ghc7.8.4.so()(64bit)
libHSregex-posix-0.95.2-ghc7.8.4.so()(64bit)
ghc(haskeline-0.7.1.2-281779727606b894dc030c237fe9fadd)
libHSdirectory-1.2.1.0-ghc7.8.4.so()(64bit)
ghc(bytestring-0.10.4.0-e82797828c29adab75d6eb4b53384f09)
libHSdeepseq-1.3.0.2-ghc7.8.4.so()(64bit)
ghc(array-0.5.0.0-ce080a527b3819e94d851f7f80ca77dd)
libHSinteger-gmp-0.5.1.0-ghc7.8.4.so()(64bit)
libHScontainers-0.5.5.1-ghc7.8.4.so()(64bit)
ghc(zlib-0.5.4.1-8ffd575006426c527ccadab0d91517b2)
ghc(unix-2.7.0.1-d7de2c9293605f58486b3752d772cdb6)
ghc(mmap-0.5.9-318f930e67c22a174e5fef983e615909)
ghc(vector-0.10.9.1-2f5cf77c20260b20755a9f1aebe4529b)
libgmp.so.10()(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libHSutf8-string-0.3.8-ghc7.8.4.so()(64bit)
libHSextensible-exceptions-0.1.1.4-ghc7.8.4.so()(64bit)
libutil.so.1()(64bit)
libHSprimitive-0.5.2.1-ghc7.8.4.so()(64bit)
libHSterminfo-0.4.0.0-ghc7.8.4.so()(64bit)
libcurl.so.4()(64bit)
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
ghc(process-1.2.0.0-ac5f66ef47c8e6680cd098551063b07c)
libc.so.6(GLIBC_2.4)(64bit)
ghc(hashed-storage-0.5.11-4d201416bda7b6bf598cb951c0e5578a)
libHSmtl-2.1.3.1-ghc7.8.4.so()(64bit)
libHSghc-prim-0.3.1.0-ghc7.8.4.so()(64bit)
libHSunix-2.7.0.1-ghc7.8.4.so()(64bit)
ghc(directory-1.2.1.0-1b239651bf547478c9e952c1e47c8fbe)
ghc(regex-compat-0.95.1-cbc685052e9463c86426b1d62c69a7ef)
libHSbinary-0.7.1.0-ghc7.8.4.so()(64bit)
ghc(filepath-1.3.0.2-25a474a9272ae6260626ce0d70ad1cab)
libHShaskeline-0.7.1.2-ghc7.8.4.so()(64bit)
libc.so.6()(64bit)
ghc(old-time-1.1.0.2-e3f776e97c1a6ff1770b04943a7ef7c6)
ghc(utf8-string-0.3.8-6fda9d26dad1ad5893795c4e073e4388)
libHSvector-0.10.9.1-ghc7.8.4.so()(64bit)
libHStext-1.1.1.3-ghc7.8.4.so()(64bit)
libHSbase-4.7.0.2-ghc7.8.4.so()(64bit)
librt.so.1()(64bit)
libHStime-1.4.2-ghc7.8.4.so()(64bit)
ghc(html-1.0.1.2-314be2235c29f6803c87eb204e9b1f99)
libHSmmap-0.5.9-ghc7.8.4.so()(64bit)
libHShtml-1.0.1.2-ghc7.8.4.so()(64bit)
libHSregex-compat-0.95.1-ghc7.8.4.so()(64bit)
libHSold-locale-1.0.0.6-ghc7.8.4.so()(64bit)
libHSprocess-1.2.0.0-ghc7.8.4.so()(64bit)
rpmlib(PayloadIsXz) <= 5.2-1
ghc(text-1.1.1.3-41a1b42bfbf393e802c95c88f57d2452)
ghc(tar-0.4.0.1-3ca73a673dc5eb397ddef5381580974b)
libHSrandom-1.0.1.1-ghc7.8.4.so()(64bit)
libdl.so.2()(64bit)
libHStransformers-0.3.0.0-ghc7.8.4.so()(64bit)
libHStar-0.4.0.1-ghc7.8.4.so()(64bit)
ghc(extensible-exceptions-0.1.1.4-ff00541964e8b4f6fe7adae94cd5f3b4)
libHSparsec-3.1.5-ghc7.8.4.so()(64bit)
libHSfilepath-1.3.0.2-ghc7.8.4.so()(64bit)
darcs-common = 2.8.5-2.fc22
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libtinfo.so.5()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0()(64bit)
libHSregex-base-0.93.2-ghc7.8.4.so()(64bit)
ghc(mtl-2.1.3.1-96f1a7910a7553352339ed05fb61c269)
libHShashed-storage-0.5.11-ghc7.8.4.so()(64bit)
libz.so.1()(64bit)
libHSbytestring-0.10.4.0-ghc7.8.4.so()(64bit)

Content of RPM :
/usr/lib64/ghc-7.8.4/darcs-2.8.5
/usr/lib64/ghc-7.8.4/darcs-2.8.5/libHSdarcs-2.8.5-ghc7.8.4.so