pythia8-forward-decl.patch

diff --git a/src/FJcore.cc b/src/FJcore.cc
index c60108e2..afd32eee 100644
--- a/src/FJcore.cc
+++ b/src/FJcore.cc
@@ -730,14 +730,10 @@ FJCORE_BEGIN_NAMESPACE      // defined in fastjet/internal/base.hh
 class ClosestPair2D : public ClosestPair2DBase {
 public:
   ClosestPair2D(const std::vector<Coord2D> & positions, 
-		const Coord2D & left_corner, const Coord2D & right_corner) {
-    _initialize(positions, left_corner, right_corner, positions.size());
-  };
+		const Coord2D & left_corner, const Coord2D & right_corner);
   ClosestPair2D(const std::vector<Coord2D> & positions, 
 		const Coord2D & left_corner, const Coord2D & right_corner,
-		const unsigned int max_size) {
-    _initialize(positions, left_corner, right_corner, max_size);
-  };
+		const unsigned int max_size);
   void closest_pair(unsigned int & ID1, unsigned int & ID2, 
 		    double & distance2) const;
   void remove(unsigned int ID);
@@ -808,6 +804,15 @@ public:
     return coord.distance2(other.coord);
   };
 };
+inline ClosestPair2D::ClosestPair2D(const std::vector<Coord2D> & positions, 
+  const Coord2D & left_corner, const Coord2D & right_corner) {
+  _initialize(positions, left_corner, right_corner, positions.size());
+};
+inline ClosestPair2D::ClosestPair2D(const std::vector<Coord2D> & positions, 
+  const Coord2D & left_corner, const Coord2D & right_corner,
+  const unsigned int max_size) {
+  _initialize(positions, left_corner, right_corner, max_size);
+};
 inline bool floor_ln2_less(unsigned x, unsigned y) {
   if (x>y) return false;
   return (x < (x^y)); // beware of operator precedence...