nixpkgs/pkgs/development/libraries/glibc/dont-use-system-ld-so-preload.patch

diff -ru glibc-2.20-orig/elf/rtld.c glibc-2.20/elf/rtld.c
--- glibc-2.20-orig/elf/rtld.c	2014-09-07 10:09:09.000000000 +0200
+++ glibc-2.20/elf/rtld.c	2014-10-27 11:32:25.203043157 +0100
@@ -1513,7 +1513,7 @@
      open().  So we do this first.  If it succeeds we do almost twice
      the work but this does not matter, since it is not for production
      use.  */
-  static const char preload_file[] = "/etc/ld.so.preload";
+  static const char preload_file[] = "/etc/ld-nix.so.preload";
   if (__glibc_unlikely (__access (preload_file, R_OK) == 0))
     {
       /* Read the contents of the file.  */