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

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