[Msys2-users] Debugging undeterministic segfaults

[Gintautas Miliauskas]

Nice!

This needs a host ghc (with alex and happy) preinstalled, correct?

On Tue, Nov 4, 2014 at 12:55 AM, David Macek <david.macek.0 at gmail.com>
wrote:

> On 4. 11. 2014 0:07, Gintautas Miliauskas wrote:
> > A PKGBUILD for ghc should be feasible, although the bootstrapping is a
> bit tricky (some Haskell tools need to be preinstalled). I'm not sure how
> useful it would be since for Windows there is already a nicely packaged
> native Haskell Platform installer.
>
> It definitely helps MSYS2 users by providing an easily installable ghc
> package. That in turn could help with setting up ghc development
> environment. Hopefully after Windows ghc migrates to gcc 4.8, ghc package
> will be able to use the MSYS2 packaged toolchain to reduce duplication.
>
> I have this so far, but I give no guarantees:
> https://github.com/elieux/MINGW-packages/tree/ghc
>
> To use:
> - download ghc and put it in PATH
> - optionally alter ghc/lib/settings to use MSYS2 toolchain instead of the
> bundled one (see below)
> - use cabal-install PKGBUILD to build Cabal and put it in PATH
> - use built Cabal to download and build Alex and Happy and put them in
> PATH (I think they're installed somewhere inside AppData by default)
> - run ghc PKGBUILD
>
> Related:
> https://www.haskell.org/pipermail/ghc-devs/2014-October/006759.html
>
> My ghc/lib/settings (from version 7.6.3):
>
> [("GCC extra via C opts", " -fwrapv"),
>  ("C compiler command", "gcc.exe"),
>  ("C compiler flags", " -fno-stack-protector  -Wl,--hash-size=31
> -Wl,--reduce-memory-overheads"),
>  ("ar command", "ar.exe"),
>  ("ar flags", "q"),
>  ("ar supports at file", "YES"),
>  ("touch command", "$topdir/touchy.exe"),
>  ("dllwrap command", "dllwrap.exe"),
>  ("windres command", "windres.exe"),
>  ("perl command", "perl.exe"),
>  ("target os", "OSMinGW32"),
>  ("target arch", "ArchX86_64"),
>  ("target word size", "8"),
>  ("target has GNU nonexec stack", "False"),
>  ("target has .ident directive", "True"),
>  ("target has subsections via symbols", "False"),
>  ("LLVM llc command", ""),
>  ("LLVM opt command", "")
>  ]
>
> --
> David Macek
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>



-- 
Gintautas Miliauskas
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