Resolving dependencies...
Downloading stream-fusion-0.1.2.1...
Configuring stream-fusion-0.1.2.1...
Building stream-fusion-0.1.2.1...
Preprocessing library stream-fusion-0.1.2.1...

on the commandline: Warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

on the commandline: Warning:
    The -fvia-C flag does nothing; it will be removed in a future GHC release
ghc: unrecognised flags: -fno-method-sharing
Usage: For basic information, try the `--help' option.
Failed to install stream-fusion-0.1.2.1
cabal: Error: some packages failed to install:
stream-fusion-0.1.2.1 failed during the building phase. The exception was:
ExitFailure 1