diff --git a/src/frontend/numparam/general.h b/src/frontend/numparam/general.h
index 8a9830e8c..1e56c8088 100644
--- a/src/frontend/numparam/general.h
+++ b/src/frontend/numparam/general.h
@@ -29,42 +29,42 @@ typedef char string[258];
 
 void sini( char * s, int i);
 void sfix(char * s, int i, int max);
- int maxlen(char * s);
- char * pscopy( char * s, char * a, int i,int j);
- char * pscopy_up( char * s, char * a, int i,int j);
- unsigned char scopy( char * a, char * b);
- unsigned char scopy_up( char * a, char * b);
- unsigned char ccopy( char * a, char c);
- unsigned char sadd( char * s, char * t);
- unsigned char nadd( char * s, long n);
- unsigned char cadd( char * s, char c);
- unsigned char sins( char * s, char * t);
- unsigned char cins( char * s, char c);
- int cpos( char c, char * s);
- int spos( char * sub, char * s);
+int maxlen(char * s);
+char * pscopy( char * s, char * a, int i,int j);
+char * pscopy_up( char * s, char * a, int i,int j);
+unsigned char scopy( char * a, char * b);
+unsigned char scopy_up( char * a, char * b);
+unsigned char ccopy( char * a, char c);
+unsigned char sadd( char * s, char * t);
+unsigned char nadd( char * s, long n);
+unsigned char cadd( char * s, char c);
+unsigned char sins( char * s, char * t);
+unsigned char cins( char * s, char c);
+int cpos( char c, char * s);
+int spos( char * sub, char * s);
 int ci_prefix( register char *p, register char *s );
- int length(char * s);
- unsigned char steq(char * s, char * t);
- unsigned char stne(char * s, char * t);
- int scompare(char * a, char * b);
- int ord(char c);
- int pred(int i);
- int succ(int i);
+int length(char * s);
+unsigned char steq(char * s, char * t);
+unsigned char stne(char * s, char * t);
+int scompare(char * a, char * b);
+int ord(char c);
+int pred(int i);
+int succ(int i);
 void stri(long n, char * s);
 void strif(long n, int f, char * s);
 void strf(double x, int a, int b, char * s); /* float -> string */
- long   ival(char * s, int *err);
- double rval(char * s, int *err);
+long   ival(char * s, int *err);
+double rval(char * s, int *err);
 
- char upcase(char c);
- char lowcase(char c);
- int hi(long w);
- int lo(long w);
- unsigned char odd(long x);
- unsigned char alfa(char c);
- unsigned char num(char c);
- unsigned char alfanum(char c);
- char * stupcase( char * s);
+char upcase(char c);
+char lowcase(char c);
+int hi(long w);
+int lo(long w);
+unsigned char odd(long x);
+unsigned char alfa(char c);
+unsigned char num(char c);
+unsigned char alfanum(char c);
+char * stupcase( char * s);
 
 /***** primitive input-output ***/
 void wc(char c);
@@ -72,24 +72,22 @@ void wln(void);
 void ws( char * s);
 void wi(long i);
 void rs( char * s);
- char rc(void);
+char rc(void);
 
- int freadstr(FILE * f, char * s, int max);
- char freadc(FILE * f);
- long freadi(FILE * f);
+int freadstr(FILE * f, char * s, int max);
+char freadc(FILE * f);
+long freadi(FILE * f);
 
- long np_round(double d);	// sjb to avoid clash with round() in math.h
- long np_trunc(double x);	// sjb to avoid clash with trunc() in math.h
- double sqr(double x);
- double absf(double x); /* abs */
- long absi( long i);
- double frac(double x);
+long np_round(double d);	// sjb to avoid clash with round() in math.h
+long np_trunc(double x);	// sjb to avoid clash with trunc() in math.h
+double sqr(double x);
+double absf(double x); /* abs */
+long absi( long i);
+double frac(double x);
 
- unsigned char reset(FILE * f);
- unsigned char rewrite(FILE * f);
+unsigned char reset(FILE * f);
+unsigned char rewrite(FILE * f);
 void rawcopy(void * a, void * b, int la, int lb);
- void * new(long sz);
+void * new(long sz);
 void dispose(void * p);
- char * newstring(int n);
-
- 
+char * newstring(int n);
diff --git a/src/frontend/numparam/mystring.c b/src/frontend/numparam/mystring.c
index f67b6c88e..1a96a573d 100644
--- a/src/frontend/numparam/mystring.c
+++ b/src/frontend/numparam/mystring.c
@@ -9,7 +9,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
-#include <math.h>		/* -- ceil floor */
+
 #include "config.h"
 #ifdef HAS_WINDOWS
 #include "wstdio.h"
diff --git a/src/frontend/numparam/numparam.h b/src/frontend/numparam/numparam.h
index ee2c4f1a8..ff34ef724 100644
--- a/src/frontend/numparam/numparam.h
+++ b/src/frontend/numparam/numparam.h
@@ -67,7 +67,7 @@ typedef struct _ttdico {
 
 void initdico(tdico * dico);
  int donedico(tdico * dico);
- unsigned char defsubckt( tdico *dico, char * s, unsigned short w, char categ);
+ unsigned char defsubckt( tdico *dico, char * s, int w, char categ);
  int findsubckt( tdico *dico, char * s, char * subname);  
  unsigned char nupa_substitute( tdico *dico, char * s, char * r, unsigned char err);
  unsigned char nupa_assignment( tdico *dico, char *  s, char mode);
diff --git a/src/frontend/numparam/spicenum.c b/src/frontend/numparam/spicenum.c
index 9d9123315..3c9f3c8b3 100644
--- a/src/frontend/numparam/spicenum.c
+++ b/src/frontend/numparam/spicenum.c
@@ -22,9 +22,7 @@ Todo:
 */
 
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
+
 #include "general.h"
 #include "numparam.h"
 #include "ngspice.h"
@@ -195,14 +193,12 @@ stripbraces (char *s)
 	  if (t[i - 1] > ' ')
 	    cadd (t, ' ');
 
-	  nadd (t, PlaceHold + placeholder);
-	  cadd (t, ' ');	// add extra character to increase number significant digits for evaluated numbers
-	  cadd (t, ' ');
-	  cadd (t, ' ');
-	  cadd (t, ' ');
-	  cadd (t, ' ');
-	  cadd (t, ' ');
-	  cadd (t, ' ');
+          cadd (t, ' ');        // add extra character to increase number significant digits for evaluated numbers
+          cadd (t, ' ');
+          cadd (t, ' ');
+          cadd (t, ' ');
+          nadd (t, PlaceHold + placeholder);
+          cadd (t, ' ');
 
 	  if (s[j] >= ' ')
 	    cadd (t, ' ');
@@ -754,7 +750,7 @@ nupa_eval (char *s, int linenum)
 {
   int idef;			/* subckt definition line */
   char c, keep, *ptr;
-  int i;
+  unsigned int i;
   Str (80, subname);
   unsigned char err = 1;