Added glibc pure64 patch

- This patch has to be applied if we want to build "pure" 64bit builds,
  that means no multilib support!
  It fixes the ldd-rewrite sed rules according to the pure64 patch for
  gcc.

Note:
  Currently tested for x86-64 only!

base/glibc/glibc-2.5-ldd-rewrite-pure64-1.diff

@@ -0,0 +1,7 @@
+--- glibc-2.5/sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed.orig	2007-09-30 05:48:45.000000000 +0300
++++ glibc-2.5/sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed	2007-09-30 05:49:30.000000000 +0300
+@@ -1,3 +1,3 @@
+ /LD_TRACE_LOADED_OBJECTS=1/a\
+ add_env="$add_env LD_LIBRARY_VERSION=\\$verify_out"
+-s_^\(RTLDLIST=\)\(.*lib\)\(\|64\)\(/[^/]*\)\(-x86-64\)\(\.so\.[0-9.]*\)[ 	]*$_\1"\2\4\6 \264\4\5\6"_
++s_^\(RTLDLIST=\)\(.*lib\)\(\|64\)\(/[^/]*\)\(-x86-64\)\(\.so\.[0-9.]*\)[ 	]*$_\1"\232\4\6 \2\4\5\6"_