id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,difficulty,ghcversion,platform
633,Cabal-1.8.0.2 fails to build packages for hugs: --inplace is not supported with Hugs,nomeata,,"For the Debian packages, we use Cabal to build packages for ghc6 and for hugs. Unfortunately, with Cabal-1.8, the hugs support is broken:

{{{
debian/hlibrary.setup configure --hugs --prefix=/usr -v2 --builddir=dist-hugs 
Configuring binary-0.5.0.2...
Flags chosen: applicative-in-base=True, split-base=True,
bytestring-in-base=True
Dependency array -any: using array
Dependency base >1 && <1: using base
Dependency containers -any: using containers
Using Cabal-1.8.0.2 compiled by ghc-6.12
Using compiler: hugs
Using install prefix: /usr
Binaries installed in: /usr/bin
Libraries installed in: /usr/lib/hugs/packages/binary
Private binaries installed in: /usr/libexec
Data files installed in: /usr/share/binary-0.5.0.2
Documentation installed in: /usr/share/doc/binary-0.5.0.2
No alex found
Using ar found on system at: /usr/bin/ar
No c2hs found
Using cpphs version 1.9 found on system at: /usr/bin/cpphs
Using ffihugs found on system at: /usr/bin/ffihugs
Using gcc version 4.4.3 found on system at: /usr/bin/gcc
Using ghc version 6.12.1 found on system at: /usr/bin/ghc
Using ghc-pkg version 6.12.1 found on system at: /usr/bin/ghc-pkg
No greencard found
Using haddock version 2.6.0 found on system at: /usr/bin/haddock
No happy found
No hmake found
Using hsc2hs version 0.67 found on system at: /usr/bin/hsc2hs
Using hscolour version 1.15 found on system at: /usr/bin/HsColour
Using hugs found on system at: /usr/bin/hugs
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
No pkg-config found
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /bin/tar
debian/hlibrary.setup build --builddir=dist-hugs
Preprocessing library binary-0.5.0.2...
Building binary-0.5.0.2...
Registering binary-0.5.0.2...
hlibrary.setup: --inplace is not supported with Hugs
}}}

The reason seems to be the build function in ./Distribution/Simple/Build.hs:
{{{
build pkg_descr lbi flags suffixes = do
  let distPref  = fromFlag (buildDistPref flags)
      verbosity = fromFlag (buildVerbosity flags)
  initialBuildSteps distPref pkg_descr lbi verbosity suffixes
  setupMessage verbosity ""Building"" (packageId pkg_descr)

  internalPackageDB <- createInternalPackageDB distPref

  withLibLBI pkg_descr lbi $ \lib clbi -> do
    info verbosity ""Building library...""
    buildLib verbosity pkg_descr lbi lib clbi

    installedPkgInfo <- generateRegistrationInfo verbosity pkg_descr lib
                               lbi clbi True{-inplace-} distPref

    -- Register the library in-place, so exes can depend
    -- on internally defined libraries.
    registerPackage verbosity
      installedPkgInfo pkg_descr lbi True{-inplace-} internalPackageDB

  -- Use the internal package db for the exes.
  let lbi' = lbi { withPackageDB = withPackageDB lbi ++ [internalPackageDB] }

  withExeLBI pkg_descr lbi' $ \exe clbi -> do
    info verbosity $ ""Building executable "" ++ exeName exe ++ ""...""
    buildExe verbosity pkg_descr lbi' exe clbi
}}}

Here, the inplace flag is unconditionally set to true. But in ./Distribution/Simple/Register.hs, we have
{{{
registerPackageHugs verbosity installedPkgInfo pkg lbi inplace _packageDb = do
  when inplace $ die ""--inplace is not supported with Hugs""
  let installDirs = absoluteInstallDirs pkg lbi NoCopyDest
  createDirectoryIfMissingVerbose verbosity True (libdir installDirs)
  writeUTF8File (libdir installDirs </> ""package.conf"")
                (showInstalledPackageInfo installedPkgInfo)
}}}

I’d be grateful for a quick work-around or patch, as this is holding up the transition to ghc 6.12 in Debian.",defect,new,normal,,Cabal library,1.6.0.1,normal,,,debian-haskell@…,normal,,
