neko: Correctly set 64bit mode in build.

Neko seems to think it is running in 32bit, even though it is compiled for
64bit. The fix is included in 1.8.3, which is not yet released as of now, so we
add a temporary fix until the release.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/development/compilers/neko/default.nix

@@ -17,6 +17,8 @@ stdenv.mkDerivation rec {
     ' src/tools/install.neko
     sed -i -e '/allocated = strdup/s|"[^"]*"|"'"$out/lib/neko:$out/bin"'"|' \
       vm/load.c
+    # temporarily, fixed in 1.8.3
+    sed -i -e 's/^#if defined(_64BITS)/& || defined(__x86_64__)/' vm/neko.h
 
     for disabled_mod in mod_neko{,2} mod_tora{,2} mysql ui; do
       sed -i -e '/^libs/,/^}/{/^\s*'"$disabled_mod"'\s*=>/,/^\s*}/d}' \