On 06/12/2007, at 6:56 PM, Duncan Coutts wrote:
On Thu, 2007-12-06 at 17:35 +0700, Peter Gammie wrote:
Can I humbly suggest that Cabal rely on very few external libraries?
We recently defined filepath to be a core library. As you point out however this does pose a problem for older compilers. Fortunately it's not that bad, you can build and install filepath using the older cabal that comes with your older compiler. If that's not possible for whatever reason you can download both Cabal and filepath and:
ghc -i../filepath --make Setup.lhs -o setup
I realise all this, I just wanted to log the fact that darcs-Cabal does not build on GHC 6.6. I thought it was a design goal for Cabal to compile on all GHCs back to 6.4.x (or something). No matter, I installed GHC 6.6.1: $ ghc --version The Glorious Glasgow Haskell Compilation System, version 6.6.1 Next problem: let's reinstall the 'cgi' package (latest from darcs): $ ghc-pkg list /usr/lib/ghc-6.6.1/package.conf: Cabal-1.1.6.2, Cabal-1.3.1, base-2.1.1, filepath-1.0, (ghc-6.6.1), haskell98-1.0, parsec-2.0, readline-1.0, regex-base-0.72, regex-compat-0.71, regex-posix-0.71, rts-1.0, stm-2.0, template-haskell-2.1, unix-2.1 /home/peteg/.ghc/i386-linux-6.6.1/package.conf: mtl-1.1.0.0, network-2.1.0.0, xhtml-3000.0.2.1 Note that I've installed the dependencies in my home directory. $ runghc Setup.*hs configure --prefix=$HOME -v3 Configuring cgi-3001.1.5.1... Creating dist (and its parents) /usr/bin/ghc --numeric-version looking for package tool: ghc-pkg near compiler in /usr/bin found package tool in /usr/bin/ghc-pkg /usr/bin/ghc-pkg --version /usr/bin/ghc -c /tmp/tmp19799.c -o /tmp/tmp19799.o /usr/bin/ld -x -r /tmp/tmp19799.o -o /tmp/tmp19800.o Reading installed packages... /usr/bin/ghc-pkg --global list Setup.hs: At least the following dependencies are missing: network >=2.0, mtl >=1.0, xhtml >=3000.0.0 Why is ghc-pkg looking only at globally-installed packages? cheers peter