Fix for building valgrind on x86_64-linux.

If building on x86_64-linux, pass --enable-only64bit to the configure
script of valgrind. This disables the 32-bit build, which uses gcc
-m32, which is not supported by the standard gcc for x86_64-linux.


svn path=/nixpkgs/trunk/; revision=8073

pkgs/development/tools/misc/valgrind/default.nix

@@ -7,6 +7,9 @@ stdenv.mkDerivation {
     sha256 = "0hf48y13mm1c1zg59bvkbr0lzcwng5mb33lgiv3d0gzl4w2r5jhv";
   };
 
+  configureFlags =
+    if stdenv.system == "x86_64-linux" then ["--enable-only64bit"] else [];
+
   meta = {
     description = "Award-winning suite of tools for debugging and profiling Linux programs";
   };