binutils: use shared libs

pkgs/stdenv/linux/default.nix

@@ -189,7 +189,9 @@ in
 
     # Rebuild binutils to use from stage2 onwards.
     overrides = self: super: {
-      binutils = super.binutils_nogold;
+      binutils-unwrapped = super.binutils-unwrapped.override {
+        gold = false;
+      };
       inherit (prevStage)
         ccWrapperStdenv
         gcc-unwrapped coreutils gnugrep;

pkgs/stdenv/linux/make-bootstrap-tools.nix

@@ -150,6 +150,7 @@ in with pkgs; rec {
         for i in as ld ar ranlib nm strip readelf objdump; do
           cp ${binutils.bintools.out}/bin/$i $out/bin
         done
+        cp '${lib.getLib binutils.bintools}'/lib/* "$out/lib/"
 
         chmod -R u+w $out