Re: patch applied (cabal): Fix Show/Read for License

On Fri, 2008-12-12 at 11:50 -0800, Ian Lynagh wrote:

Fri Dec 12 10:36:22 PST 2008 Ian Lynagh * Fix Show/Read for License We were ending up with things like InstalledPackageInfo { ... license = LGPL Nothing, ... } i.e. "LGPL Nothing" rather than "LGPL", which we couldn't then read.

I'd like to revert this patch. The serialisation format of InstalledPackageInfo is defined by the Read/Show instance of the types. GHC uses it's own faster parser but that just means it has to keep up, not that we fix the format for all time. It really should be LGPL Nothing because there is now an optional version number on that license (and GPL). Either we revert support for versioned licenses or we make GHC's parser catch up. This half-way house is not workable (it looses information in a read . show round trip). Duncan