I wouldn't bother trying to build cabal with GHC HEAD if that's what you're doing. You can just make cabal use a different GHC for compilation, etc. If you have a built copy of GHC in some tree that you want to test, you can actually make Cabal use it directly by just saying: $ cabal install -w ~/path/to/ghc/source/inplace/bin/ghc-stage2 That is, just use -w to point cabal to the stage2 executable. That compiler has a registered in-place package directory so you can mess around with it. Alternatively, after doing a build, make a binary distribution: $ make binary-dist Then, take the ghc-7.7-*.tar.gz file, unpack it somewhere else and install it to a prefix. I normally use ~/ghc/head-builds for this: $ tar zxf ghc-7.7-*.tar.gz $ cd ghc-7.7-... $ ./configure --prefix=$HOME/ghc/head-builds $ make install Then do the same thing as before, and use `cabal` but point it to the installed GHC binary: $ cabal install -w ~/ghc/head-builds/bin/ghc That should work. On Mon, Mar 4, 2013 at 10:52 AM, Jan Stolarek wrote:

I'm trying to set up a sandboxed installation of GHC HEAD with cabal-install and some other libraries. I need this to run some benchmarks on Repa library. Right now I'm having problems with bootstraping cabal-install. I managed to work around problems with some pakcages like HTTP that put upper bound on base version but I'm stuck with cabal-install itself. I modified dependency on unix package but now I'm getting some compilation errors. I could probably fix them but I guess that this is not the correct way of setting up a working GHC HEAD installation. So the question is how should I install cabal-install with HEAD ?

Janek

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-- Regards, Austin