[GHC] #10110: Compiling unit fails with Loading temp shared object failed

[GHC]

#10110: Compiling unit fails with Loading temp shared object failed
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        Reporter:  trommler          |                   Owner:
            Type:  bug               |                  Status:  patch
        Priority:  high              |               Milestone:  7.10.2
       Component:  Template Haskell  |                 Version:  7.10.1-rc2
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10058            |  Differential Revisions:  Phab:D731,
                                     |  Phab:D791, Phab:D895
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"85bf9e49f5ab4e0681eeda2549dbd4b5faf3ef7f/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="85bf9e49f5ab4e0681eeda2549dbd4b5faf3ef7f"
 Add regression test for #10110.

 Module C imports a from Module A and b from module B. B does not
 import anything from A. So if ld is configured to drop DT_NEEDED
 tags for libraries it does not depend on no DT_NEEDED tag for the
 temporary shared object containing module A is recorded in the temp
 SO containing module B. This leads to an undefined symbol when
 linking the temp SO for module C.

 Fixes #10110.

 Reviewed By: austin

 Differential Revision: https://phabricator.haskell.org/D895

 GHC Trac Issues: #10110
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10110#comment:16>
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