#10726: Upgrade MingW-w64 distributions for windows -------------------------------------+------------------------------------- Reporter: Phyx- | Owner: Type: task | Status: patch Priority: high | Milestone: 7.10.3 Component: Build System | Version: 7.11 Resolution: | Keywords: Operating System: Windows | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9218 #9014 | Differential Rev(s): Phab:D1123 #10435 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by Phyx-): I'm currently trying to track down an issue in `HEAD` so I can't test this myself atm, but @RyanGIScott can you try something for me, since you're linking against `libm.a` try just adding `-lmsvcr120` and see if that links. You may have an older version of the library so check the output of `dir c:\Windows\System32\msvcr*.dll`. This should work since `libm.a` is a stub just to satisfy linking because the symbols are In the Microsoft runtime. @Lukexi instead of re-exporting the symbols, try using the stock `RC3`, can you rebuild your C parts with `-D__USE_MINGW_ANSI_STDIO=0`. This will make `MingW-w64` drop the `__mingw` prefixes and then the symbols should be found in the `msvcr*.dll` as well. So then you can just link against that as well. This could be a workaround if the patch doesn't make it in `7.10.3`. I haven't gotten any response to whether it would. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10726#comment:54 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler