Hi all, I'm new to GHC Dev and I'm trying to build GHC 7.7 (the repo is about 9 days old) on a Windows machine with mingw32. I followed the very helpful article for newcomers to GHC dev ( http://ghc.haskell.org/trac/ghc/wiki/Newcomers# ) and up to configure it was easy. Now I get a problem with configure, the last few output lines are: GHC build : i386-unknown-mingw32 GHC host : i386-unknown-mingw32 GHC target : i386-unknown-mingw32 configure: Building in-tree ghc-pwd checking for path to top of build tree... j:/ghc checking for gcc... j:/ghc/inplace/mingw/bin/gcc.exe checking whether the C compiler works... no configure: error: in `/j/ghc': configure: error: C compiler cannot create executables See `config.log' for more details From config.log it's clear that j:/ghc/inplace/mingw/bin/gcc.exe is missing (actually already the bin is missing). My gcc is in /mingw/bin, which is in PATH, but even if I try with the option --with-gcc=/mingw/bin/gcc I get the same error. So I was looking in the configure script and found out that, for mingw32 and i386, gcc must be under $hardtop/inplace/mingw/bin/, and if not, there are commands to unpack all tools from tar files like ghc-tarballs/mingw/binutils*.tar.lzma and a few others. The point is, I don't have the subdirectory ghc-tarballs under my ghc directory. Now, my questions: 1. Are there any reasons to not use the building tools coming from the mingw installation, and use the dedicated ones? 2. Where could I find those tarballs? Did I miss something when updated the repositories? Thanks, Nicu