Resolving dependencies...
Downloading logfloat-0.11.0...
Configuring logfloat-0.11.0...
Building logfloat-0.11.0...
Preprocessing library logfloat-0.11.0...

Data/Number/LogFloat.hs:13:16: Warning:
    The -fvia-C flag does nothing; it will be removed in a future GHC release

Data/Number/LogFloat.hs:13:16: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

Data/Number/Transfinite.hs:2:16: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

Data/Number/LogFloat.hs:77:8:
    Could not find module `Data.Number.RealToFrac'
    Use -v to see a list of the files searched for.
Failed to install logfloat-0.11.0
cabal: Error: some packages failed to install:
logfloat-0.11.0 failed during the building phase. The exception was:
ExitFailure 1