File gfan-c++20.patch of Package gfan

--- gfan0.7/src/gfanlib_circuittableint.h.orig	2024-08-12 10:00:15.000000000 -0600
+++ gfan0.7/src/gfanlib_circuittableint.h	2024-08-15 16:14:29.983298300 -0600
@@ -591,7 +591,8 @@ public:
 	    ret=min;
 
 	    {
-	    	auto ret2=CircuitTableIntPOD((s.v*denominatorDivisor.multiplicativeInverse)*boundA.v);
+		CircuitTableIntPOD ret2{};
+	    	ret2=(s.v*denominatorDivisor.multiplicativeInverse)*boundA.v;
 	    	ret2=MIN(ret2.v,-ret2.v);
 	    	return ret2;
 	    	if(ret.v!=ret2.v)