Patch for aterm library on mingw (see meta-devel-list)

Moved all the shell fixes to fix-builder.sh, which is now always invoked.

Added aterm to the list of packages provided by mingw.nix

svn path=/nixpkgs/trunk/; revision=6152

pkgs/development/libraries/aterm/aterm-2.4.nix

@@ -6,7 +6,9 @@ stdenv.mkDerivation {
     url = http://nix.cs.uu.nl/dist/tarballs/aterm-2.4.2.tar.gz;
     md5 = "18617081dd112d85e6c4b1b552628114";
   };
-  patches = [./aterm-alias-fix-2.patch];
+  patches = 
+    [./aterm-alias-fix-2.patch] ++
+    (if stdenv.system == "i686-mingw" then [./mingw-asm.patch] else []);
   meta = {
     homepage = http://www.cwi.nl/htbin/sen1/twiki/bin/view/SEN1/ATerm;
     license = "LGPL";