Index: mttroot/mtt/cc/include/useful-functions.hh
==================================================================
--- mttroot/mtt/cc/include/useful-functions.hh
+++ mttroot/mtt/cc/include/useful-functions.hh
@@ -10,39 +10,39 @@
 #endif // __CPLUSPLUS
 
 
 // == Template functions ==
 
-inline class_t
+static inline class_t
 max (const class_t &x1, const class_t &x2)
 {
   return ((x1 >= x2) ? x1 : (x1 < x2) ? x2 : 0);
 }
 
-inline class_t
+static inline class_t
 min (const class_t &x1, const class_t &x2)
 {
   return ((x1 <= x2) ? x1 : (x1 > x2) ? x2 : 0);
 }
 
-inline class_t
+static inline class_t
 sign (const class_t &x)
 {
   return ((x > 0) ? +1 : (x < 0) ? -1 : 0);
 }
 
 
 // == Octave functions ==
 
-inline Matrix
+static inline Matrix
 ones (const int r = 1, const int c = 1)
 {
   Matrix m (r, c, 1.0);
   return m;
 }
 
-inline ColumnVector
+static inline ColumnVector
 nozeros (const ColumnVector v0, const double tol = 0.0)
 {
   ColumnVector v (v0.length ());
   register int i, j;
   for (i = j = 0; i < v.length (); i++)
@@ -59,20 +59,20 @@
     {
       return (v.extract (0, --j));
     }
 }
 
-inline ColumnVector
+static inline ColumnVector
 zeros (const int r)
 {
   ColumnVector v (r, 0.0);
   return v;
 }
 
-inline Matrix
+static inline Matrix
 zeros (const int r, const int c)
 {
   Matrix m (r, c, 0.0);
   return m;
 }
 
 #endif // HAVE_USEFUL_FUNCTIONS_HH