Trying to get coreutils cross-built with uclibc.

This involved fixing some buildInputs/buildNativeInputs in acl/attr,
and adding a libiconv in some places.


svn path=/nixpkgs/branches/stdenv-updates/; revision=20510

pkgs/os-specific/linux/uclibc/default.nix

@@ -1,4 +1,4 @@
-{stdenv, fetchurl, linuxHeaders, cross ? null, gccCross ? null}:
+{stdenv, fetchurl, linuxHeaders, libiconv, cross ? null, gccCross ? null}:
 
 assert stdenv.isLinux;
 assert cross != null -> gccCross != null;
@@ -58,6 +58,11 @@ stdenv.mkDerivation {
     (cd $out/include && ln -s $(ls -d ${linuxHeaders}/include/* | grep -v "scsi$") .)
     sed -i s@/lib/@$out/lib/@g $out/lib/libc.so
   '';
+
+  passthru = {
+    # Derivations may check for the existance of this attribute, to know what to link to.
+    inherit libiconv;
+  };
   
   meta = {
     homepage = http://www.uclibc.org/;