https://bugs.gentoo.org/728618

Backported by Victor Mataré

From 30e5057f01627539dd170a1e831bb14278433deb Mon Sep 17 00:00:00 2001
From: Jochen Sprickerhof <git@jochen.sprickerhof.de>
Date: Fri, 26 Jun 2020 17:04:12 +0200
Subject: [PATCH] Declare assignment operator private for SIP (Closes: #260)

Starting with v4.19.23 SIP expects a working operator= or one marked
private explicitly. All classes in this PR have a reference member
(&chain) resulting in the compiler deleting the default assignment
operator. This PR makes this known to SIP as well.
---
 python_orocos_kdl/PyKDL/dynamics.sip |  3 +++
 python_orocos_kdl/PyKDL/kinfam.sip   | 29 ++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/PyKDL/dynamics.sip b/python_orocos_kdl/PyKDL/dynamics.sip
index e0096dd..36f833c 100644
--- a/PyKDL/dynamics.sip
+++ b/PyKDL/dynamics.sip
@@ -72,4 +72,7 @@ public:
     int JntToCoriolis(const JntArray &q, const JntArray &q_dot, JntArray &coriolis);
 	int JntToMass(const JntArray &q, JntSpaceInertiaMatrix& H);
 	int JntToGravity(const JntArray &q,JntArray &gravity);
+
+private:
+    ChainDynParam& operator=(const ChainDynParam&);
 };
diff --git a/PyKDL/kinfam.sip b/python_orocos_kdl/PyKDL/kinfam.sip
index d87fd00..e87ceb8 100644
--- a/PyKDL/kinfam.sip
+++ b/PyKDL/kinfam.sip
@@ -344,6 +344,9 @@ public:
     ChainFkSolverPos_recursive(const Chain& chain);
     virtual int JntToCart(const JntArray& q_in, Frame& p_out,int segmentNr=-1);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainFkSolverPos_recursive& operator=(const ChainFkSolverPos_recursive&);
 };
 
 class ChainFkSolverVel_recursive : ChainFkSolverVel
@@ -357,6 +360,9 @@ public:
     virtual int JntToCart(const JntArrayVel& q_in ,FrameVel& out,int
     segmentNr=-1 );
     virtual void updateInternalDataStructures();
+
+private:
+    ChainFkSolverVel_recursive& operator=(const ChainFkSolverVel_recursive&);
 };
 
 class ChainIkSolverPos : SolverI {
@@ -392,6 +398,9 @@ public:
     
     virtual int CartToJnt(const JntArray& q_init , const Frame& p_in ,JntArray& q_out);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainIkSolverPos_NR& operator=(const ChainIkSolverPos_NR&);
 };
 
 class ChainIkSolverPos_NR_JL : ChainIkSolverPos
@@ -407,6 +416,9 @@ public:
     
     virtual int CartToJnt(const JntArray& q_init , const Frame& p_in ,JntArray& q_out);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainIkSolverPos_NR_JL& operator=(const ChainIkSolverPos_NR_JL&);
 };
 
 class ChainIkSolverVel_pinv : ChainIkSolverVel
@@ -420,6 +432,9 @@ public:
         
     virtual int CartToJnt(const JntArray& q_in, const Twist& v_in, JntArray& qdot_out);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainIkSolverVel_pinv& operator=(const ChainIkSolverVel_pinv&);
 };
 
 class ChainIkSolverVel_wdls : ChainIkSolverVel
@@ -506,6 +521,8 @@ public:
 
     void setLambda(const double& lambda);
 
+private:
+    ChainIkSolverVel_wdls& operator=(const ChainIkSolverVel_wdls&);
 };
 
 
@@ -520,6 +537,9 @@ public:
 
     virtual int CartToJnt(const JntArray& q_init , const Frame& p_in ,JntArray& q_out);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainIkSolverPos_LMA& operator=(const ChainIkSolverPos_LMA&);
 };
 
 
@@ -546,6 +566,9 @@ public:
     const JntArray& getOptPos()const /Factory/;
 
     const double& getAlpha()const /Factory/;
+
+private:
+    ChainIkSolverVel_pinv_nso& operator=(const ChainIkSolverVel_pinv_nso&);
 };
 
 class ChainIkSolverVel_pinv_givens : ChainIkSolverVel
@@ -559,6 +582,9 @@ public:
         
     virtual int CartToJnt(const JntArray& q_in, const Twist& v_in, JntArray& qdot_out);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainIkSolverVel_pinv_givens& operator=(const ChainIkSolverVel_pinv_givens&);
 };
 
 class ChainJntToJacSolver : SolverI
@@ -571,4 +597,7 @@ public:
     ChainJntToJacSolver(const Chain& chain);
     int JntToJac(const JntArray& q_in,Jacobian& jac);
     virtual void updateInternalDataStructures();
+
+private:
+    ChainJntToJacSolver& operator=(const ChainJntToJacSolver&);
 };
-- 
2.27.0