Index: mttroot/mtt/cc/include/useful-functions.hh
==================================================================
--- mttroot/mtt/cc/include/useful-functions.hh
+++ mttroot/mtt/cc/include/useful-functions.hh
@@ -1,9 +1,16 @@
 
 #ifndef HAVE_USEFUL_FUNCTIONS_HH
 #define HAVE_USEFUL_FUNCTIONS_HH
 
+/* Code generation directives */
+#define STANDALONE 0
+#define OCTAVEDLD  1
+#define MATLABMEX  2
+#if (! defined (CODEGENTARGET))
+#define CODEGENTARGET -1
+#endif /* (! defined (CODEGENTARGET)) */
 
 #ifndef __cplusplus
 #define inline			/* strip */
 #define cast_to_double	(double)
 /*
@@ -39,10 +46,11 @@
   return cast_to_double ((x > 0) ? +1 : (x < 0) ? -1 : 0);
 }
 
 
 /* Octave functions */
+#if ((CODEGENTARGET == STANDALONE) || (CODEGENTARGET == OCTAVEDLD))
 #ifdef __cplusplus
 static Matrix
 ones (const int r = 1, const int c = 1)
 {
   Matrix m (r, c, 1.0);
@@ -82,9 +90,10 @@
 {
   Matrix m (r, c, 0.0);
   return m;
 }
 #endif /* __cplusplus */
+#endif /* ((CODEGENTARGET == STANDALONE) || (CODEGENTARGET == OCTAVEDLD)) */
 
 
 
 #endif /* HAVE_USEFUL_FUNCTIONS_HH */