Building GHC on Windows

[Jan Stolarek]

Thanks. I installed msys but again I faced the same problem. I solved it by copying mingw 
directory from ghc-7.6.3 distribution to inplace/mingw subdirectory in the source tree. That's 
silly but it works. 

Now I have problems with installing alex and happy. I followed steps on wiki page, ie. downloaded 
cabal.exe and added it to path. I can run 'cabal update' and 'cabal install alex happy' but it 
looks like packages are not installed in my home directory (home under msys shell that is). Any 
idea where are they installed so that I can add them to path?

Janek

Dnia czwartek, 13 marca 2014, kyra napisał:
> On 3/13/2014 13:18, Jan Stolarek wrote:
> > I'm trying to build GHC on 64-bit Windows 7. I installed Cygwin, GHC and
> > cloned the main repo but when I run configure I get this error:
> >
> > configure: Building in-tree ghc-pwd
> > checking for path to top of build tree... cygwin warning:
> >    MS-DOS style path detected: C:/cygwin64/home/tewi/head
> >    Preferred POSIX equivalent is: /home/tewi/head
> >    CYGWIN environment variable option "nodosfilewarning" turns off this
> > warning. Consult the user's guide for more details about POSIX paths:
> >      http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
> > C:/cygwin64/home/tewi/head
> > checking for gcc... C:/cygwin64/home/tewi/head/inplace/mingw/bin/gcc.exe
> > checking whether the C compiler works... no
> > configure: error: in `/home/tewi/head':
> > configure: error: C compiler cannot create executables
> > See `config.log' for more details
> >
> > I have gcc installed under Cygwin, but for some reason ./configure is
> > looking for an in-tree compiler. I tried passing --with-gcc=/usr/bin/gcc
> > to configure but with no result. Help?
> >
> > Janek
> >
> > _______________________________________________
> > ghc-devs mailing list
> > ghc-devs at haskell.org
> > http://www.haskell.org/mailman/listinfo/ghc-devs
>
> Windows GHC *shall* use in-tree compiler. Windows GHC does *not* use
> cygwin runtime at all!
>
> Now the best way to build GHC on Windows is to use MSYS2:
> https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows/MSYS2.
>
> I'd also add that most recent versions are
>
> http://sourceforge.net/projects/msys2/files/Base/i686/msys2-base-i686-20140
>216.tar.xz/download for 32-bit windows,
>
> and
>
> http://sourceforge.net/projects/msys2/files/Base/x86_64/msys2-base-x86_64-2
>0140216.tar.xz/download for 64-bit windows.
>
> Please, take into account this is *build environment* and in no way is
> related to gcc compiler and runtime used by GHC on Windows.
>
> Cheers,
> Kyra
>
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