[GHC] #12940: ghc-8.0.2 RC1 libs installed under package dirs vs Cabal installing packages under abi dir

[GHC]

#12940: ghc-8.0.2 RC1 libs installed under package dirs vs Cabal installing
packages under abi dir
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           Reporter:  juhpetersen       |             Owner:
               Type:  bug               |            Status:  new
           Priority:  normal            |         Milestone:  8.0.2
          Component:  Build System      |           Version:  8.0.2-rc1
           Keywords:                    |  Operating System:  Linux
       Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
          Test Case:                    |        Blocked By:
           Blocking:                    |   Related Tickets:
Differential Rev(s):                    |         Wiki Page:
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 This may be more of an inconsistency than a bug:

 Under Linux, ghc-8.0.1.20161117 installs its dynlibs in package libdirs
 whereas Cabal-1.24.1.0 installs them under the abi dir:

 eg
 /usr/lib/ghc-8.0.2/pkg-version/libHSpkg-version-*.so
 vs
 /usr/lib/<arch>-linux-ghc-8.0.2/libHSpkg-version-*.so

 It would be more consistent for both to install in the same place.


 Personally I would even suggest just to install ghc dynlibs in /usr/lib
 itself but that is probably another discuss for Cabal...
 That would avoid the need for RPATH's entirely. :-)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12940>
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