diff --git a/rw.cpp b/rw.cpp
index 87146d08..c0985b10 100644
--- a/rw.cpp
+++ b/rw.cpp
@@ -11,12 +11,17 @@
 
 #ifndef CRYPTOPP_IMPORTS
 
-#ifdef _OPENMP
-static const bool CRYPTOPP_RW_USE_OMP = false;
+#if GCC_DIAGNOSTIC_AWARE
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wunknown-pragmas"
 #endif
 
 NAMESPACE_BEGIN(CryptoPP)
 
+#ifdef _OPENMP
+static const bool CRYPTOPP_RW_USE_OMP = false;
+#endif
+
 void RWFunction::BERDecode(BufferedTransformation &bt)
 {
 	BERSequenceDecoder seq(bt);
@@ -284,4 +289,8 @@ void InvertibleRWFunction::AssignFrom(const NameValuePairs &source)
 
 NAMESPACE_END
 
+#if GCC_DIAGNOSTIC_AWARE
+# pragma GCC diagnostic pop
+#endif
+
 #endif