#13189: Implement same specification as GHC spec file for mingw32 -------------------------------------+------------------------------------- Reporter: Phyx- | Owner: Phyx- Type: feature | Status: new request | Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: #13093 Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- When the `GCC` driver envokes the pipeline a `SPEC` is used to determine how to configure the compiler and which libraries to pass along. For Windows/mingw, this specfile is https://github.com/gcc-mirror/gcc/blob/master/gcc/config/i386/mingw32.h This has a lot of interesting things that we need to emulate in order to be able to link as many things out of the box as GCC. In particular this is why you never need to specify `-lgcc_s` when compiling, but you do when using `GHCi`. Or specifying what `-mwindows` links in, that when `-lstdc++` is used what else to link in. Which base DLLs GCC will always link with when building an exe. And how to link `libgcc`, either static or dynamically. Currently we only support static linking of `libgcc` (which maybe we should change? or at least make user changeable). The current partial implementation works by adding hooks into the RTS. A better implementation is adding it all outside the RTS in the `DriverPipeline` tied directly to the commandline options. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13189 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler