* KVM 84. CIFS/Samba performance still broken.

* Kernel headers: KVM expects a include/linux/asm-x86 symlink, so
  provide it.

svn path=/nixpkgs/trunk/; revision=14113

pkgs/os-specific/linux/kernel-headers/2.6.28.nix

@@ -20,9 +20,6 @@ stdenv.mkDerivation {
 
   buildInputs = [perl];
 
-  # !!! hacky
-  fixupPhase = "ln -s $out/include/asm $out/include/asm-$platform";
-
   extraIncludeDirs =
     if stdenv.system == "powerpc-linux" then ["ppc"] else [];
 
@@ -41,4 +38,12 @@ stdenv.mkDerivation {
     ensureDir $out/include/config
     echo "${version}-default" > $out/include/config/kernel.release
   '';
+
+  # !!! hacky
+  fixupPhase = ''
+    ln -s asm $out/include/asm-$platform
+    if test "$platform" = "i386" -o "$platform" = "x86_64"; then
+      ln -s asm $out/include/asm-x86
+    fi  
+  '';
 }