[GHC] #8696: linking fails with 'relocation R_X86_64_PC32 against undefined symbol'

[GHC]

#8696: linking fails with 'relocation R_X86_64_PC32 against undefined symbol'
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        Reporter:  Kata      |            Owner:
            Type:  bug       |           Status:  new
        Priority:  highest   |        Milestone:  7.8.1
       Component:  Compiler  |          Version:  7.8.1-rc1
      Resolution:            |         Keywords:
Operating System:  Linux     |     Architecture:  x86_64 (amd64)
 Type of failure:  Other     |       Difficulty:  Unknown
       Test Case:            |       Blocked By:
        Blocking:            |  Related Tickets:
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Comment (by rwbarton):

 Perhaps it makes sense to drop the optimization for 7.8-RC2, though, so
 that testers can find issues that are masked by this one? Patch attached.
 I've tested that it fixes "cabal install lens" and am currently
 benchmarking it.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8696#comment:16>
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