_N is collides with ctypes.h

Index: resolves.h
--- resolves.h.orig
+++ resolves.h
@@ -112,10 +112,10 @@ enum _FormCoil
     void  getMultiLayerI_fromResistance (double D, double lk, double c, double k, double Rm, _CoilResult *result);
     void getMultiLayerI_rectFormer(double a, double b, double l, double c, double dw, double k, _CoilResult *result);
     void getMultiLayerI_rectFormer_byN(double N, double a, double b, double l, double dw, double k, _CoilResult *result);
-    void getMultilayerI_Foil(double D, double w, double t, double ins, int _N, _CoilResult *result);
+    void getMultilayerI_Foil(double D, double w, double t, double ins, int _M, _CoilResult *result);
     double getFerriteI(double N, double Do, double Di, double h, double mu, double Ch, _CoilResult *result); //get Inductance for Ferrite toroid coil
     double getPCB_I(double N, double _d, double _s, int layout, _CoilResult *result);
-    void getSpiralI(double Do, double Di, double dw, int _N, _CoilResult *result);
+    void getSpiralI(double Do, double Di, double dw, int _M, _CoilResult *result);
 
     void findToroidPemeability(double N, double I, double Do, double Di, double h, double Ch, _CoilResult *result);
     void findFerriteRodN(double I, double Lr, double Dr, double mu, double dc, double s, double dw, double p, _CoilResult *result);
