Building on windows

[Austin Seipp]

I fixed the ./sync-all detection (I just checked it myself, but thanks for
the patch though Niklas!)

Simon, I've got a working i386/windows build here, but I'll rebuild a new
VM and try again and closely follow the docs and amend what's necessary. In
the mean time, perhaps try with a fresh tree?


On Fri, Aug 23, 2013 at 5:40 AM, Niklas Larsson <metaniklas at gmail.com>wrote:

> Here is a patch for this bug. It just adds 'msys' to the $OSNAME check.
>
> Niklas
>
>
> 2013/8/23 Niklas Larsson <metaniklas at gmail.com>
>
>> Hi!
>>
>> The check for Windows in sync-all is failing (line 790). On a mingw/msys
>> system $OSNAME contains 'msys' and not MSWin32 or Cygwin that it is
>> checking for.
>>
>> Niklas
>>
>>
>> 2013/8/23 Simon Peyton-Jones <simonpj at microsoft.com>
>>
>>>  I’ve got a new Windows laptop, and have being having a torrid time
>>> getting GHC to build on it.****
>>>
>>> ** **
>>>
>>> **1.      **Build falls over with ****
>>>
>>> checking for gcc... c:/code/HEAD/inplace/mingw/bin/gcc.exe****
>>>
>>> checking whether the C compiler works... no****
>>>
>>> configure: error: in `/c/code/HEAD':****
>>>
>>> configure: error: C compiler cannot create executables****
>>>
>>> Turns out that an earlier error was****
>>>
>>> configure: Making in-tree mingw tree****
>>>
>>> tar (child): ../../ghc-tarballs/mingw/binutils*.tar.lzma: Cannot open:
>>> No such file or directory****
>>>
>>> tar (child): Error is not recoverable: exiting now****
>>>
>>> tar: Child returned status 2****
>>>
>>> tar: Error is not recoverable: exiting now****
>>>
>>> ./configure: line 4050: inplace/mingw/bin/realgcc.exe: No such file or
>>> directory****
>>>
>>> configure: In-tree mingw tree created****
>>>
>>> configure: Making in-tree perl tree****
>>>
>>> BUT this error was not fatal, so the build went on (notwithstanding the
>>> red message above), leading to a MUCH more obscure error later.****
>>>
>>> ** **
>>>
>>> **2.      **Why wasn’t ghc-tarballs there?  Oh, apparently you have to
>>> say ****
>>>
>>> sync-all –windows get****
>>>
>>> That’s really hard for a naïve user to work out.  Can’t we either always
>>> get it, or work out that we are on windows?****
>>>
>>> ** **
>>>
>>> **3.      **I carefully installed mingw/msys as described on
>>> http://www.mingw.org/wiki/Getting_Started
>>> I used mingw-set-inst, which launches a GUI for a package installer.
>>> All seems well.  I update my path.  But then****
>>>
>>> Can't locate Autom4te/ChannelDefs.pm in @INC (@INC contains:
>>> /mingw/share/autoco****
>>>
>>> nf /usr/lib/perl5/5.8/msys /usr/lib/perl5/5.8
>>> /usr/lib/perl5/site_perl/5.8/msys****
>>>
>>> /usr/lib/perl5/site_perl/5.8 /usr/lib/perl5/site_perl/5.8
>>> /usr/lib/perl5/vendor_****
>>>
>>> perl/5.8/msys /usr/lib/perl5/vendor_perl/5.8
>>> /usr/lib/perl5/vendor_perl/5.8 .) a****
>>>
>>> t /c/Programme/MinGW/bin/autoreconf-2.68 line 40.****
>>>
>>> BEGIN failed--compilation aborted at
>>> /c/Programme/MinGW/bin/autoreconf-2.68 line****
>>>
>>>   40.****
>>>
>>> After a long struggle I found that I had missed a crucial thing.  With
>>> the new autoconf tools, *it’s essential that c:/mingw be mounted as
>>> /mingw*, because /mingw is hard-coded into autoconf perl scripts.
>>> http://www.mingw.org/wiki/Getting_Started does say (deep in the middle)
>>> to edit c:/mingw/msys/1.0/etc/fstab with a text editor, but that appeared
>>> to have no effect for me.  Saying “mount c:/mingw /mingw” did work.  I
>>> have no idea why. ****
>>>
>>> ** **
>>>
>>> What is horrible is how uninformative the error message is.****
>>>
>>> ** **
>>>
>>> I guess we should update the Windows build instructions.****
>>>
>>> ** **
>>>
>>> I still don’t know if I’ve bottomed out here because I can’t find
>>> Happy/Alex in the Haskell platform. Sigh.****
>>>
>>> Simon****
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>>
>>
>
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-- 
Regards,
Austin - PGP: 4096R/0x91384671
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