--- gdl-0.9pre2/src/specializations.hpp.orig	2006-06-12 23:24:09.000000000 -0600
+++ gdl-0.9pre2/src/specializations.hpp	2006-09-19 10:23:58.000000000 -0600
@@ -237,6 +237,12 @@
 Data_<SpDByte>* Data_<SpDComplexDbl>::LogNeg();
 
 // datatypes.cpp
+template<>
+Data_<SpDString>::Data_(const dimension& dim_, BaseGDL::InitType iT);
+template<>
+Data_<SpDPtr>::Data_(const dimension& dim_, BaseGDL::InitType iT);
+template<>
+Data_<SpDObj>::Data_(const dimension& dim_, BaseGDL::InitType iT);
 template<>  SizeT Data_<SpDString>::NBytes() const;
 // template<>  SizeT Data_<SpDObj>::NBytes() const;
 // template<>  SizeT Data_<SpDPtr>::NBytes() const;