#15700: Plugins cause GHC to panic: cannot find dynamic libraries -------------------------------------+------------------------------------- Reporter: sheaf | Owner: (none) Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Compiler | Version: 8.6.1 Resolution: | Keywords: Operating System: Windows | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: #15492 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by sheaf): I'm sure this isn't news to anyone, but after testing I can confirm that plugins work on GHC 8.6.1 on Windows if one bypasses the test for whether a plugin has changed (`mkPluginUsage` in `DsUsage.hs`). So it seems the solution should be to make the functions that look up plugin locations, within `mkPluginUsage`, work correctly on Windows. The only relevant files that I can see on my machine are static `.a` files. For instance, instead of the non-existent `libHSghc- typelits-_-0.6.2-faf29727b3dbdfa09cfb6f0c881a2a227b5d2bb0-ghc8.6.1.dll`, I have `libHSghc- typelits-_-0.6.2-faf29727b3dbdfa09cfb6f0c881a2a227b5d2bb0.a`, which I have to assume is what is being used by GHC for plugin usage. \\ Does this mean mkPluginUsage should be hashing these files instead? On Windows only? The attached `DsUsage.hs` file is working on my end, inelegant as it may be. It tries looking for .a files if looking for dynamic files (.dll, .so, .dylib) fails. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15700#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler