diff --git a/gf2n.h b/gf2n.h
index f5a4468c..b1cfba48 100644
--- a/gf2n.h
+++ b/gf2n.h
@@ -238,6 +238,7 @@ private:
 
 CRYPTOPP_DLL_TEMPLATE_CLASS AbstractGroup<PolynomialMod2>;
 CRYPTOPP_DLL_TEMPLATE_CLASS AbstractRing<PolynomialMod2>;
+CRYPTOPP_DLL_TEMPLATE_CLASS AbstractEuclideanDomain<PolynomialMod2>;
 CRYPTOPP_DLL_TEMPLATE_CLASS EuclideanDomainOf<PolynomialMod2>;
 CRYPTOPP_DLL_TEMPLATE_CLASS QuotientRing<EuclideanDomainOf<PolynomialMod2> >;
 
diff --git a/strciphr.h b/strciphr.h
index 944ac09b..4cc4f15e 100644
--- a/strciphr.h
+++ b/strciphr.h
@@ -258,12 +258,10 @@ public:
 	unsigned int MandatoryBlockSize() const {return this->OptimalBlockSize();}
 };
 
-/*
-CRYPTOPP_DLL_TEMPLATE_CLASS AbstractPolicyHolder<CFB_CipherAbstractPolicy, SymmetricCipher>;
+// for Darwin
 CRYPTOPP_DLL_TEMPLATE_CLASS CFB_CipherTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, SymmetricCipher> >;
 CRYPTOPP_DLL_TEMPLATE_CLASS CFB_EncryptionTemplate<>;
 CRYPTOPP_DLL_TEMPLATE_CLASS CFB_DecryptionTemplate<>;
-*/
 
 template <class BASE, class INFO = BASE>
 class SymmetricCipherFinal : public AlgorithmImpl<SimpleKeyingInterfaceImpl<BASE, INFO>, INFO>