Original patch from Gentoo:
gentoo/src/patchsets/binutils/2.19/08_all_binutils-RPATH_ENVVAR-smack.patch

http://sourceware.org/ml/binutils/2007-07/msg00401.html
http://sourceware.org/bugzilla/show_bug.cgi?id=4970

diff -durN binutils-2.19.orig/configure binutils-2.19/configure
--- binutils-2.19.orig/configure	2008-09-04 04:18:16.000000000 +0200
+++ binutils-2.19/configure	2008-11-23 16:22:02.000000000 +0100
@@ -5601,6 +5601,7 @@
   *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
 esac
+RPATH_ENVVAR="cant_touch_this_nah_nah_nah"
 
 # On systems where the dynamic library environment variable is PATH,
 if test "$RPATH_ENVVAR" = PATH; then
