diff --git a/src/util.cpp b/src/util.cpp
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -88,21 +88,6 @@
 #include <openssl/conf.h>
 #include <openssl/rand.h>
 
-// Work around clang compilation problem in Boost 1.46:
-// /usr/include/boost/program_options/detail/config_file.hpp:163:17: error: call
-// to function 'to_internal' that is neither visible in the template definition
-// nor found by argument-dependent lookup.
-// See also:
-// http://stackoverflow.com/questions/10020179/compilation-fail-in-boost-librairies-program-options
-//           http://clang.debian.net/status.php?version=3.0&key=CANNOT_FIND_FUNCTION
-namespace boost {
-
-namespace program_options {
-    std::string to_internal(const std::string &);
-}
-
-} // namespace boost
-
 const char *const BITCOIN_CONF_FILENAME = "bitcoin.conf";
 const char *const BITCOIN_PID_FILENAME = "bitcoind.pid";