* Ensure that when building gcc, libstdc++ is linked against the

libgcc of the gcc being built, not the gcc building it.
* Only include a directory in the rpath of an executable/library if it
  is actually used.  Before, the `/lib' directory of every build input
  was added to the rpath, causing many unnecessary retained
  dependencies.  For instance, Perl has a `/lib' directory, but most
  applications whose build process uses Perl don't actually link
  against Perl.  (Also added a test for this.)
* After building glibc, remove glibcbug, to prevent a retained
  dependency on gcc.
* Add a newline after `building X' in GNU Make.

svn path=/nixpkgs/trunk/; revision=911

pkgs/test/rpath/default.nix

@@ -0,0 +1,18 @@
+let {
+  system = "i686-linux";
+
+  stdenvs = (import ../../system/stdenvs.nix) {
+    inherit system;
+    allPackages = import ../../system/all-packages-generic.nix;
+  };
+
+  stdenv = stdenvs.stdenvLinuxBoot2;
+
+  test = stdenv.mkDerivation {
+    name = "rpath-test";
+    builder = ./builder.sh;
+    src = ./src;
+  };
+
+  body = test;
+}