prepare few things for VS compilation

src/spicelib/devices/adms/admst/ngspiceMODULEask.c.xml

@@ -82,7 +82,7 @@ int $(module)ask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value,
   default:
     return(-1);
   }
-  return(-1);
+
 }
 
 </admst:template>

src/spicelib/devices/adms/admst/ngspiceMODULEdefs.h.xml

@@ -91,10 +91,10 @@
 #define EXIT_IF_ISNAN(var) \\
 { \\
 }
-
+#ifndef _MSC_VER
 static inline double max(double x,double y)  { return ((x)>(y))?(x):(y); }
 static inline double min(double x,double y)  { return ((x)<(y))?(x):(y); }
-
+#endif
 /* ngspice \$simparam variables
     gdev                (1/Ohms): Additional conductance to be added to nonlinear branches for conductance homotopy convergence algorithm.
     gmin                (1/Ohms): Minimum conductance placed in parallel with nonlinear branches.

src/spicelib/devices/adms/admst/ngspiceMODULEguesstopology.c.xml

@@ -334,7 +334,7 @@ int $(module)guesstopology (SMPmatrix *matrix, CKTcircuit *ckt, $(module)model *
   </admst:for-each>
   <admst:for-each select="$localvariables">
     <admst:if test="[type='integer']">int %(name);\n</admst:if>
-    <admst:if test="[type='real']">double %(name)=0.0/0.0;\n</admst:if>
+    <admst:if test="[type='real']">double %(name)=0.0;\n</admst:if>
     <admst:if test="[type='string']">char* %(name);\n</admst:if>
   </admst:for-each>
   <admst:for-each select="analog/code[datatypename='block']/item">

src/spicelib/devices/adms/admst/ngspiceMODULEmask.c.xml

@@ -63,7 +63,7 @@ int $(module)mAsk(CKTcircuit *ckt, GENmodel *inst, int which, IFvalue *value)
   default:
     return(-1);
   }
-  return(-1);
+
 }
 
 </admst:template>

src/spicelib/devices/adms/admst/ngspiceVersion.xml

@@ -1031,7 +1031,7 @@
       <admst:if test="[static='no' and dynamic='yes']">#if defined(_DYNAMIC)\n</admst:if>
       <admst:value-of select="name"/>
       <admst:if test="[type='integer']">int %s;\n</admst:if>
-      <admst:if test="[type='real']">double %s=0.0/0.0;\n</admst:if>
+      <admst:if test="[type='real']">double %s=0.0;\n</admst:if>
       <admst:if test="[type='string']">char* %s;\n</admst:if>
       <admst:if test="[insource='yes']">
         <admst:if test="probe">