diff -ruN --exclude=CVS ../cryptopp.orig/Makefile ./Makefile
--- ../cryptopp.orig/Makefile	2013-05-22 02:18:44.000000000 +0200
+++ ./Makefile	2013-05-22 02:19:32.000000000 +0200
@@ -3,7 +3,7 @@
 
 PORTNAME=		cryptopp
 PORTVERSION=		5.6.1
-PORTREVISION=		2
+PORTREVISION=		3
 CATEGORIES=		security
 MASTER_SITES=		SF \
 			http://www.cryptopp.com/
diff -ruN --exclude=CVS ../cryptopp.orig/files/patch-nbtheory.cpp ./files/patch-nbtheory.cpp
--- ../cryptopp.orig/files/patch-nbtheory.cpp	1970-01-01 01:00:00.000000000 +0100
+++ ./files/patch-nbtheory.cpp	2013-05-22 02:18:29.000000000 +0200
@@ -0,0 +1,21 @@
+--- nbtheory.cpp.orig	2013-05-22 00:16:26.761193859 +0000
++++ nbtheory.cpp	2013-05-22 00:15:29.401256454 +0000
+@@ -307,7 +307,18 @@
+ 
+ bool PrimeSieve::NextCandidate(Integer &c)
+ {
++#if defined(__clang__) && defined(_LIBCPP_VERSION) &&  _LIBCPP_VERSION < 1101
++	// Workaround for a bug in libc++ in std::find on std::vector<bool>
++	std::vector<bool>::iterator pos = m_sieve.begin()+m_next;
++	for (std::vector<bool>::iterator end = m_sieve.end(); pos != end; ++pos)
++	{
++		if (*pos == false)
++			break;
++	}
++	bool safe = SafeConvert(pos - m_sieve.begin(), m_next);
++#else
+ 	bool safe = SafeConvert(std::find(m_sieve.begin()+m_next, m_sieve.end(), false) - m_sieve.begin(), m_next);
++#endif
+ 	assert(safe);
+ 	if (m_next == m_sieve.size())
+ 	{