Dear Clint, Am Mittwoch, den 04.01.2012, 19:02 +0000 schrieb Clint Adams: > On Wed, Jan 04, 2012 at 06:35:52PM +0000, Joachim Breitner wrote: > > the fact that a package is using Template Haskell is not represented in > > the cabal file, so there is actually nothing to do for Neil. It should > > be noted, though, in debian/control by a Build-Dependency on ghc-ghci. > > I am confused, because many packages (for example yesod-core and > snap-server), have cabal dependencies on "template-haskell".
and it is confusing indeed. template-haskell is a library that provides the Language.Haskell.TH module. So you can have a library that uses these functions, without actually requiring a TH-capable compiler (e.g. it only provides functions based on these that a user _might_ use. You can also have (as it seems to be the case here) that a library uses the TemplateHaskell feature without actually using any of the symbols defined in the template-haskell library. Rule of thumb: If TemplateHaskell appears in the cabal file or a LANGUAGE pragma, then the Debian package ought to depend on the ghc-ghci virtual package. Greetings, Joachim -- Joachim "nomeata" Breitner Debian Developer nome...@debian.org | ICQ# 74513189 | GPG-Keyid: 4743206C JID: nome...@joachim-breitner.de | http://people.debian.org/~nomeata
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