problem with cabal on snow leopard

Carter Schonwald

17 Apr 2010 17 Apr '10

5:30 p.m.

Hello all, I can't seem to find it documented anywhere as to the default directories that cabal puts its information in (its certainly not in ~/.cabal ), as I'm finding that even when I try to do a "reinstall" of the haskell platform, cabal thinks that all the libraries i removed are still there. how can i fix this? thanks -Carter

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Gwern Branwen

17 Apr 17 Apr

5:56 p.m.

On Sat, Apr 17, 2010 at 5:30 PM, Carter Schonwald wrote:

...

Hello all, I can't seem to find it documented anywhere as to the default directories that cabal puts its information in (its certainly not in ~/.cabal ), as I'm finding that even when I try to do a "reinstall" of the haskell platform, cabal thinks that all the libraries i removed are still there. how can i fix this? thanks -Carter

~/.cabal doesn't store regular Haskell stuff; if you try one of the few uncabalized autotools-based Haskell packages, you'd see your other Cabal-based libs & progs picking it up. Cabal installs stuff and registers it with GHC, which maintains the master database of what's installed; eg. 'ghc-pkg list'. This is usually kept in ~/.ghc: find ~/.ghc/ : .ghc/ .ghc/ghci_history .ghc/i386-linux-6.10.4 .ghc/i386-linux-6.10.4/package.conf -- gwern

Ivan Lazar Miljenovic

6:51 p.m.

Carter Schonwald writes:

...

I can't seem to find it documented anywhere as to the default directories that cabal puts its information in (its certainly not in ~/.cabal ), as I'm finding that even when I try to do a "reinstall" of the haskell platform, cabal thinks that all the libraries i removed are still there. how can i fix this?

Cabal uses the ghc-pkg "database" to know which libraries are installed. If you want to wipe everything and start afresh, then delete the ~/.ghc directory (assuming you did per-user installs). -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

Carter Schonwald

11:13 p.m.

the deleting .ghc/ solves that problem, but another problem i've had is that when trying to build gtk2hs, I'm unable to find the package.conf file that apparently needs to be modfied, and only a package.conf.d folder.... are these somehow the same thing or where is it hidden/what am i overlooking? On Sat, Apr 17, 2010 at 6:51 PM, Ivan Lazar Miljenovic < ivan.miljenovic@gmail.com> wrote:

...

Carter Schonwald writes:

...
I can't seem to find it documented anywhere as to the default directories that cabal puts its information in (its certainly not in ~/.cabal ), as I'm finding that even when I try to do a "reinstall" of the haskell platform, cabal thinks that all the libraries i removed are still there. how can i fix this?

Cabal uses the ghc-pkg "database" to know which libraries are installed. If you want to wipe everything and start afresh, then delete the ~/.ghc directory (assuming you did per-user installs).

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

Ivan Lazar Miljenovic

18 Apr 18 Apr

1:09 a.m.

Carter Schonwald writes:

...

the deleting .ghc/ solves that problem, but another problem i've had is that when trying to build gtk2hs, I'm unable to find the package.conf file that apparently needs to be modfied, and only a package.conf.d folder.... are these somehow the same thing or where is it hidden/what am i overlooking?

There is as yet no release of gtk2hs that works with GHC 6.12.1. -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

Carter Schonwald

12:56 p.m.

that is good to know! thanks -carter On Sun, Apr 18, 2010 at 1:09 AM, Ivan Lazar Miljenovic < ivan.miljenovic@gmail.com> wrote:

...

Carter Schonwald writes:

...
the deleting .ghc/ solves that problem, but another problem i've had is that when trying to build gtk2hs, I'm unable to find the package.conf file that apparently needs to be modfied, and only a package.conf.d folder.... are these somehow the same thing or where is it hidden/what am i overlooking?

There is as yet no release of gtk2hs that works with GHC 6.12.1.

-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com

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Carter Schonwald
Gwern Branwen
Ivan Lazar Miljenovic