id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	difficulty	ghcversion	platform
675	template-haskell cannot be upgraded (broken data-accessor-template)	guest		"data-accessor-template-0.2.1.3 has flags in the cabal file on template-haskell versions, which makes it broken for cabal-install on ghc-6.12:

cabal-install tries to install template-haskell-2.3, which fails (and it can't be expected to succeed because TH is integrated into ghc due to quotes)

You can work around the build failure with:

{{{
  cabal install data-accessor-template --constraint='template-haskell >= 2.4'
}}}

cabal-install ought to know that template-haskell isn't something it should install (as it does with base)."	defect	new	normal	cabal-install-0.16	cabal-install tool	HEAD	normal			vogt.adam@…	unknown	6.12.1