diff --git a/src/regex.cpp b/src/regex.cpp
index ad8623f7..4b990f86 100644
--- a/src/regex.cpp
+++ b/src/regex.cpp
@@ -162,7 +162,7 @@ BOOST_REGEX_DECL void BOOST_REGEX_CALL put_mem_block(void* p)
 
 } // namespace boost
 
-#if defined(BOOST_RE_USE_VCL) && defined(BOOST_REGEX_BUILD_DLL)
+#if defined(BOOST_RE_USE_VCL) && defined(BOOST_REGEX_DYN_LINK)
 
 int WINAPI DllEntryPoint(HINSTANCE , unsigned long , void*)
 {
@@ -170,6 +170,17 @@ int WINAPI DllEntryPoint(HINSTANCE , unsigned long , void*)
 }
 #endif
 
+#if defined(__IBMCPP__) && defined(BOOST_REGEX_DYN_LINK)
+//
+// Is this correct - linker complains without it ?
+//
+int main()
+{ 
+   return 0; 
+}
+
+#endif
+