#15671: Link errors due to forcibly exporting findPtr -------------------------------------+------------------------------------- Reporter: Phyx- | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: T10955dyn | Blocked By: T10955 | Blocking: | Related Tickets: Differential Rev(s): Phab:D5138 | Wiki Page: -------------------------------------+------------------------------------- The change in https://phabricator.haskell.org/rGHC900c47f88784b91517c00be3e1087322e62f698e is causing link errors due to the combination of `-Wl,-u` and `-Wl ,--export-all-symbols` {{{ Wrong exit code for T10955dyn()(expected 0 , actual 2 ) Stderr ( T10955dyn ): E:/ghc- dev/msys64/home/Tamar/ghc/rts/dist/build/libHSrts_thr.a(Printer.thr_o): In function `findPtr': E:\ghc-dev\msys64\home\Tamar\ghc/rts/Printer.c:880: multiple definition of `findPtr' ./bin_dyn/libA.dll.a(d020776.o):(.text+0x0): first defined here }}} I believe the correct solution is to just use a cabal flag to emulate the setup we had with make, instead of forcing this symbol always. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15671 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler