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

Provides :
ghc-9.12.1-devel(base-4.21.0.0-a786)
ghc-9.12.1-devel(ghc-prim-0.13.0-5566)
ghc-9.12.1-devel(integer-gmp-1.1-3778)
ghc-9.12.1-devel(rts-1.0.2)
ghc-9.12.1-devel(system-cxx-std-lib-1.0)
ghc9.12-base-devel
ghc9.12-base-devel(x86-64)
ghc9.12-base-static
ghc9.12-base-static(x86-64)

Requires :

ghc-9.12.1-devel(base-4.21.0.0-a786)
ghc-9.12.1-devel(ghc-bignum-1.3-9464)
ghc-9.12.1-devel(ghc-internal-9.1201.0-fb68)
ghc-9.12.1-devel(ghc-prim-0.13.0-5566)
ghc-9.12.1-devel(rts-1.0.2)
ghc9.12-base(x86-64) = 4.21.0.0-3.fc42
ghc9.12-compiler = 9.12.1-3.fc42
gmp-devel(x86-64)
libffi-devel(x86-64)
numactl-devel(x86-64)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1

Content of RPM :
/usr/lib64/ghc-9.12.1/lib/package.conf.d/base-4.21.0.0-a786.conf
/usr/lib64/ghc-9.12.1/lib/package.conf.d/ghc-prim-0.13.0-5566.conf
/usr/lib64/ghc-9.12.1/lib/package.conf.d/integer-gmp-1.1-3778.conf
/usr/lib64/ghc-9.12.1/lib/package.conf.d/rts-1.0.2.conf
/usr/lib64/ghc-9.12.1/lib/package.conf.d/system-cxx-std-lib-1.0.conf
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Applicative.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Applicative.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Applicative.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Arrow.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Arrow.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Arrow.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Category.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Category.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Category.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/Chan.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/Chan.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/Chan.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/MVar.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/MVar.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/MVar.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/QSem.dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/QSem.hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/QSem.p_dyn_hi
/usr/lib64/ghc-9.12.1/lib/x86_64-linux-ghc-9.12.1-010a/base-4.21.0.0-a786/Control/Concurrent/QSemN.dyn_hi
There is 902 files more in these RPM.