[Haskell-cafe] ghc: unrecognised flags: -I

Lyndon Maydwell maydwell at gmail.com
Sun Jan 24 12:02:10 EST 2010

Hi Cafe!

That's a capital "i" for anyone with font issues.

I posted this question to beginners a while ago, but received no
meaningful response so I'm trying cafe instead :-)

Most packages I try to install off Hackage with cabal are giving me
the error "ghc: unrecognised flags: -I".

For example, when I "cabal install -v storable-complex" I get the following:

/usr/bin/ghc -package-name storable-complex-0.2.1 --make
-hide-all-packages -i -idist/build -i. -idist/build/autogen
-Idist/build/autogen -Idist/build -I -optP-include
-optPdist/build/autogen/cabal_macros.h -odir dist/build -hidir
dist/build -stubdir dist/build -package base- -O
ghc: unrecognised flags: -I

I've updated everything several times since this error started
occurring, but it persists. I've tried digging to find out where the
lone -I is being injected but can't seem to track it down.

Has anyone encountered this before, or more realistically, can anyone
give me some advice on how to narrow this problem down further?

I'm running cabal version, ghc 6.10.4 on OS X 10.5.

Thanks guys!

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