diff --git a/src/frontend/arg.c b/src/frontend/arg.c
index 36e363347..ee5c020da 100644
--- a/src/frontend/arg.c
+++ b/src/frontend/arg.c
@@ -14,7 +14,7 @@ Author: 1987 Jeffrey M. Hsu
 #include <fteext.h>
 
 #include "arg.h"
-
+#include "variable.h"
 
 static void common(char *string, struct wordlist *wl, struct comm *command);
 
diff --git a/src/frontend/aspice.c b/src/frontend/aspice.c
index af3b1039d..86a36d8f7 100644
--- a/src/frontend/aspice.c
+++ b/src/frontend/aspice.c
@@ -179,7 +179,7 @@ sigchild(void)
 void
 ft_checkkids(void)
 {
-    struct proc *p, *lp;
+    struct proc *p = NULL, *lp = NULL;
     char buf[BSIZE_SP];
     FILE *fp;
     int pid;
diff --git a/src/frontend/cpitf.c b/src/frontend/cpitf.c
index c1f68436e..147bc73ed 100644
--- a/src/frontend/cpitf.c
+++ b/src/frontend/cpitf.c
@@ -243,7 +243,7 @@ ft_cpinit(void)
 /* Decide whether a condition is TRUE or not. */
 
 bool
-cp_isTRUE(wordlist *wl)
+cp_istrue(wordlist *wl)
 {
     int i;
     struct dvec *v;
diff --git a/src/frontend/device.c b/src/frontend/device.c
index 07edaefda..09667aa9b 100644
--- a/src/frontend/device.c
+++ b/src/frontend/device.c
@@ -191,7 +191,7 @@ all_show(wordlist *wl, int mode)
 		else if (!params)
 		    param_forall(dg, DGEN_DEFPARAMS);
 		if (params)
-		    wl_forall(params, listparam, dg);
+		    wl_forall(params, (void *)listparam, (void *)dg);
 		printf("\n");
 
 	    } else if (ft_sim->devices[dg->dev_type_no]->numModelParms) {
@@ -213,7 +213,7 @@ all_show(wordlist *wl, int mode)
 		else if (!params)
 		    param_forall(dg, DGEN_DEFPARAMS);
 		if (params)
-		    wl_forall(params, listparam, dg);
+		    wl_forall(params, (void *) listparam, (void *)dg);
 		printf("\n");
 	    }
 	}
@@ -328,7 +328,7 @@ listparam(wordlist *p, dgen *dg)
 		   printf("%*.*s", LEFT_WIDTH, LEFT_WIDTH, p->wl_word);
 		else
 		   printf("%*.*s", LEFT_WIDTH, LEFT_WIDTH, " ");
-		k = dgen_for_n(dg, count, printvals, plist + i, j);
+		k = dgen_for_n(dg, count, printvals, (void *)(plist + i), j);
 		printf("\n");
 		j += 1;
 	    } while (k > 0);
diff --git a/src/frontend/dimens.c b/src/frontend/dimens.c
index bb10dc9f6..f5c9d1da6 100644
--- a/src/frontend/dimens.c
+++ b/src/frontend/dimens.c
@@ -15,14 +15,15 @@ Author: 1992 David A. Gates, U. C. Berkeley CAD Group
 /*
  * Create a string of the form "12,1,10".
  */
-char *
-dimstring(int *data, int length)
+void
+dimstring(int *data, int length, char *retstring)
 {
     int i;
     char buf[BSIZE_SP];
+    
 
     if (!data || length < 1)
-	return NULL;
+	retstring = "";
 
     buf[0] = '\0';
     for (i=0; i < length; i++) {
@@ -30,26 +31,27 @@ dimstring(int *data, int length)
 	    (i < length - 1) ? "," : "");
     }
     /* XXX Should I return a copy instead? */
-    return(buf);
+    /* qui ci devo fare una copia */
+    strcpy(retstring, buf);
 }
 
 /*
  * Create a string of the form "[12][1][10]".
  */
-char *
-indexstring(int *data, int length)
+void
+indexstring(int *data, int length, char *retstring)
 {
     int i;
     char buf[BSIZE_SP];
 
     if (!data || length < 1)
-	return NULL;
+	retstring = "";
 
     buf[0] = '\0';
     for (i=0; i < length; i++) {
 	sprintf(buf + strlen(buf), "[%d]",  data[i]);
     }
-    return(buf);
+    strcpy(retstring, buf);
 }
 
 /*
diff --git a/src/frontend/dimens.h b/src/frontend/dimens.h
index fa55fc668..269d0bae3 100644
--- a/src/frontend/dimens.h
+++ b/src/frontend/dimens.h
@@ -6,8 +6,8 @@
 #ifndef DIMENS_H_INCLUDED
 #define DIMENS_H_INCLUDED
 
-char * dimstring(int *data, int length);
-char * indexstring(int *data, int length);
+void dimstring(int *data, int length, char *retstring);
+void indexstring(int *data, int length, char *retstring);
 int incindex(int *counts, int numcounts, int *dims, int numdims);
 int emptydims(int *data, int length);
 int atodims(char *p, int *data, int *outlength);
diff --git a/src/frontend/display.c b/src/frontend/display.c
index 475504583..ffc0edcbf 100644
--- a/src/frontend/display.c
+++ b/src/frontend/display.c
@@ -15,7 +15,7 @@ Copyright 1990 Regents of the University of California.  All rights reserved.
 
 /* static declarations */
 static void gen_DatatoScreen(GRAPH *graph, double x, double y, int *screenx, int *screeny);
-static void gen_Input(REQUEST *request, RESPONSE *response);
+static int gen_Input(REQUEST *request, RESPONSE *response);
 static int nop(void);
 static int nodev(void);
 
@@ -51,7 +51,7 @@ DISPDEVICE device[] = {
     nop, nop, nop, nop, nop,
     nop, nop, nop,
     nop, nop, nop, gen_Input,
-    nop,},
+    (void *)nop,},
 
 #ifndef X_DISPLAY_MISSING
     {"X11", 0, 0, 1024, 864, 0, 0, X11_Init, X11_NewViewport,
@@ -82,7 +82,7 @@ DISPDEVICE device[] = {
     nodev, nodev, nodev, nodev, nodev,
     nodev, nodev, nodev,
     nodev, nodev, nodev, gen_Input,
-    nodev,},
+    (void *)nodev,},
 
 };
 
@@ -282,7 +282,7 @@ void Input(REQUEST *request, RESPONSE *response)
 
 }
 
-static void
+static int
 gen_Input(REQUEST *request, RESPONSE *response)
 {
 
@@ -297,6 +297,7 @@ gen_Input(REQUEST *request, RESPONSE *response)
 	    response->option = error_option;
         break;
     }
+return 0;
 }
 
 /* no operation, do nothing */
diff --git a/src/frontend/dotcards.c b/src/frontend/dotcards.c
index 7ad0d4323..6e41873d8 100644
--- a/src/frontend/dotcards.c
+++ b/src/frontend/dotcards.c
@@ -434,7 +434,8 @@ fixdotprint(wordlist *wl)
 static char *
 fixem(char *string)
 {
-    char buf[BSIZE_SP], *s, *t, *ss = string;
+    char buf[BSIZE_SP], *s, *t;
+    char *ss = string;          /* Get rid of ss ? */
 
     if (ciprefix("v(", string) &&strchr(string, ',')) {
         for (s = string; *s && (*s != ','); s++)
diff --git a/src/frontend/evaluate.c b/src/frontend/evaluate.c
index 0eb38769b..45ed75169 100644
--- a/src/frontend/evaluate.c
+++ b/src/frontend/evaluate.c
@@ -43,7 +43,7 @@ sig_matherr(void)
 struct dvec *
 ft_evaluate(struct pnode *node)
 {
-    struct dvec *d;
+    struct dvec *d = NULL;
 
     if (!node)
         return (NULL);
@@ -91,9 +91,9 @@ doop(char what,
      struct pnode *arg2)
 {
     struct dvec *v1, *v2, *res;
-    complex *c1, *c2, lc;
-    double *d1, *d2, ld;
-    int length, i;
+    complex *c1 = NULL, *c2 = NULL , lc;
+    double *d1 = NULL, *d2 = NULL, ld;
+    int length = 0, i;
     void *data;
     bool free1 = FALSE, free2 = FALSE, relflag = FALSE;
 
diff --git a/src/frontend/gens.c b/src/frontend/gens.c
index 318f62dde..ed4779a91 100644
--- a/src/frontend/gens.c
+++ b/src/frontend/gens.c
@@ -16,7 +16,7 @@ static void dgen_next(dgen **dgx);
 
 
 void
-wl_forall(wordlist *wl, int (*fn) (/* ??? */), char *data)
+wl_forall(wordlist *wl, void (*fn) (/* ??? */), void *data)
 {
 	while (wl) {
 		(*fn)(wl, data);
@@ -56,7 +56,7 @@ dgen_init(GENcircuit *ckt, wordlist *wl, int nomix, int flag, int model)
 }
 
 int
-dgen_for_n(dgen *dg, int n, int (*fn) (/* ??? */), char *data, int subindex)
+dgen_for_n(dgen *dg, int n, int (*fn) (/* ??? */), void *data, int subindex)
 {
 	dgen	dgx, *dgxp;
 	int	dnum, i, j, k;
diff --git a/src/frontend/gens.h b/src/frontend/gens.h
index c1c206b11..dd4848f45 100644
--- a/src/frontend/gens.h
+++ b/src/frontend/gens.h
@@ -6,9 +6,9 @@
 #ifndef GENS_H_INCLUDED
 #define GENS_H_INCLUDED
 
-void wl_forall(wordlist *wl, int (*fn) (/* ??? */), char *data);
+void wl_forall(wordlist *wl, void (*fn) (/* ??? */), void *data);
 dgen * dgen_init(GENcircuit *ckt, wordlist *wl, int nomix, int flag, int model);
-int dgen_for_n(dgen *dg, int n, int (*fn) (/* ??? */), char *data, int subindex);
+int dgen_for_n(dgen *dg, int n, int (*fn) (/* ??? */), void *data, int subindex);
 void dgen_nth_next(dgen **dg, int n);
 
 
diff --git a/src/frontend/inp.c b/src/frontend/inp.c
index 461886914..67d45cbaf 100644
--- a/src/frontend/inp.c
+++ b/src/frontend/inp.c
@@ -252,8 +252,8 @@ void
 inp_spsource(FILE *fp, bool comfile, char *filename)
 {
     struct line *deck, *dd, *ld;
-    struct line *realdeck, *options;
-    char *tt, name[BSIZE_SP], *s, *t;
+    struct line *realdeck, *options = NULL;
+    char *tt = NULL, name[BSIZE_SP], *s, *t;
     bool nosubckts, commands = FALSE;
     wordlist *wl = NULL, *end = NULL, *wl_first = NULL;
     wordlist *controls = NULL;
diff --git a/src/frontend/inpcom.c b/src/frontend/inpcom.c
index 64afea4ad..fe7ef42fd 100644
--- a/src/frontend/inpcom.c
+++ b/src/frontend/inpcom.c
@@ -111,7 +111,7 @@ inp_pathopen(char *name, char *mode)
 void
 inp_readall(FILE *fp, struct line **data)
 {
-    struct line *end = NULL, *cc, *prev = NULL, *working, *newcard;
+    struct line *end = NULL, *cc = NULL, *prev = NULL, *working, *newcard;
     char *buffer, *s, *t, c,*copys;
     int line = 1;
     FILE *newfp;
diff --git a/src/frontend/nutinp.c b/src/frontend/nutinp.c
index dbdd8ad77..9c6c5fdd2 100644
--- a/src/frontend/nutinp.c
+++ b/src/frontend/nutinp.c
@@ -29,8 +29,8 @@ void
 inp_nutsource(FILE *fp, bool comfile, char *filename)
 {
     struct line *deck, *dd, *ld;
-    struct line *realdeck, *options;
-    char *tt, name[BSIZE_SP], *s, *t;
+    struct line *realdeck, *options = NULL;
+    char *tt = NULL, name[BSIZE_SP], *s, *t;
     bool nosubckts, commands = FALSE;
     wordlist *wl = NULL, *end = NULL;
     wordlist *controls = NULL;
diff --git a/src/frontend/outitf.c b/src/frontend/outitf.c
index 220f9591e..097746d4a 100644
--- a/src/frontend/outitf.c
+++ b/src/frontend/outitf.c
@@ -27,7 +27,7 @@ Modified: 2000 AlansFixes
 #include <fcntl.h>
 #include <time.h>
 #include "cktdefs.h"
-
+#include <inpdefs.h>
 
 extern void gr_end_iplot(void);
 extern char *spice_analysis_get_name(int index);
@@ -114,9 +114,9 @@ beginPlot(void *analysisPtr, void *circuitPtr, char *cktName, char *analName, ch
 {
     runDesc *run;
     struct save_info *saves;
-    bool *savesused;
+    bool *savesused = NULL;
     int numsaves;
-    int i, j, depind;
+    int i, j, depind = 0;
     char namebuf[BSIZE_SP], parambuf[BSIZE_SP], depbuf[BSIZE_SP];
     char *ch, tmpname[BSIZE_SP];
     bool saveall  = TRUE;
@@ -149,9 +149,9 @@ beginPlot(void *analysisPtr, void *circuitPtr, char *cktName, char *analName, ch
         savesused = (bool *) tmalloc(sizeof (bool) * numsaves);
         saveall = FALSE;
         for (i = 0; i < numsaves; i++) {
-            if (saves[i].analysis && !cieq(saves[i].analysis, an_name)) {
+            if (saves[i].analysis && !cieq((char *)saves[i].analysis, an_name)) {
 		/* ignore this one this time around */
-		savesused[i] = TRUE;
+		savesused[i] = TRUE; 
 		continue;
 	    }
 
@@ -323,8 +323,11 @@ beginPlot(void *analysisPtr, void *circuitPtr, char *cktName, char *analName, ch
         tfree(savesused);
     }
 
-    if (numNames && (run->numData == 1 && run->refIndex != -1
-          || run->numData == 0 && run->refIndex == -1))
+    if (numNames && 
+       (run->numData == 1 
+     && run->refIndex != -1
+     || run->numData == 0 
+     && run->refIndex == -1))
     {
 	fprintf(cp_err, "Error: no data saved for %s; analysis not run\n",
 		spice_analysis_get_description(((JOB *) analysisPtr)->JOBtype));
diff --git a/src/frontend/plotting/pvec.c b/src/frontend/plotting/pvec.c
index 2c5d70145..b4584c861 100644
--- a/src/frontend/plotting/pvec.c
+++ b/src/frontend/plotting/pvec.c
@@ -8,7 +8,7 @@
 void
 pvec(struct dvec *d)
 {
-    char buf[BSIZE_SP], buf2[BSIZE_SP];
+    char buf[BSIZE_SP], buf2[BSIZE_SP], buf3[BSIZE_SP];
 
     sprintf(buf, "    %-20s: %s, %s, %d long",
 	    d->v_name,
@@ -72,7 +72,8 @@ pvec(struct dvec *d)
         strcat(buf, buf2);
     }
     if (d->v_numdims > 1) {
-	sprintf(buf2, ", dims = [%s]", dimstring(d->v_dims, d->v_numdims));
+    	dimstring(d->v_dims, d->v_numdims, buf3);
+	sprintf(buf2, ", dims = [%s]", buf3);
         strcat(buf, buf2);
     }
     if (d->v_plot->pl_scale == d) {
diff --git a/src/frontend/rawfile.c b/src/frontend/rawfile.c
index f1aa44388..42b2485c2 100644
--- a/src/frontend/rawfile.c
+++ b/src/frontend/rawfile.c
@@ -38,6 +38,7 @@ raw_write(char *name, struct plot *pl, bool app, bool binary)
     wordlist *wl;
     struct variable *vv;
     double dd;
+    char *buf[BSIZE_SP];
 
     if (!cp_getvar("nopadding", VT_BOOL, (char *) &raw_padding))
         raw_padding = FALSE;
@@ -91,7 +92,8 @@ raw_write(char *name, struct plot *pl, bool app, bool binary)
     fprintf(fp, "No. Variables: %d\n", nvars);
     fprintf(fp, "No. Points: %d\n", length);
     if (numdims > 1) {
-	fprintf(fp, "Dimensions: %s\n", dimstring(dims, numdims));
+    	dimstring(dims, numdims, buf);
+	fprintf(fp, "Dimensions: %s\n", *buf);
     }
 
     for (wl = pl->pl_commands; wl; wl = wl->wl_next)
@@ -147,7 +149,8 @@ raw_write(char *name, struct plot *pl, bool app, bool binary)
 		    writedims = TRUE;
 	}
 	if (writedims) {
-	    fprintf(fp, " dims=%s", dimstring(v->v_dims, v->v_numdims));
+	    dimstring(v->v_dims, v->v_numdims, buf);	
+	    fprintf(fp, " dims=%s",*buf);
         }
         (void) putc('\n', fp);
     }
@@ -242,7 +245,7 @@ raw_read(char *name)
     char *date = 0;
     struct plot *plots = NULL, *curpl = NULL;
     char buf[BSIZE_SP], buf2[BSIZE_SP], *s, *t, *r;
-    int flags, nvars, npoints, i, j;
+    int flags = 0, nvars = 0, npoints = 0, i, j;
     int ndimpoints, numdims=0, dims[MAXDIMS];
     bool raw_padded = TRUE;
     double junk;
diff --git a/src/frontend/runcoms.c b/src/frontend/runcoms.c
index 279d17e49..dbdd563b3 100644
--- a/src/frontend/runcoms.c
+++ b/src/frontend/runcoms.c
@@ -151,7 +151,7 @@ com_noise(wordlist *wl)
 static int
 dosim(char *what, wordlist *wl)
 {
-    wordlist *ww;
+    wordlist *ww = NULL;
     bool dofile = FALSE;
     char buf[BSIZE_SP];
     struct circ *ct;
@@ -252,13 +252,14 @@ dosim(char *what, wordlist *wl)
 	} else
 	    ft_curckt->ci_inprogress = FALSE;
     }
-    if (rawfileFp)
+    if (rawfileFp){
       if (ftell(rawfileFp)==0) {
 	    (void) fclose(rawfileFp);
             (void) remove(wl->wl_word);
         } else {
 	    (void) fclose(rawfileFp);
-        };
+        }
+    }
     ft_curckt->ci_runonce = TRUE;
     ft_setflag = FALSE;
     return err;
diff --git a/src/frontend/spec.c b/src/frontend/spec.c
index f479af8b9..e904d8bae 100644
--- a/src/frontend/spec.c
+++ b/src/frontend/spec.c
@@ -25,7 +25,7 @@ com_spec(wordlist *wl)
     int     fpts, i, j, k, tlen, ngood;
     bool    trace;
     char    *s;
-    struct dvec  *f, *vlist, *lv, *vec;
+    struct dvec  *f, *vlist, *lv = NULL, *vec;
     struct pnode *names, *first_name;
 
     if (!plot_cur || !plot_cur->pl_scale) {
diff --git a/src/frontend/variable.c b/src/frontend/variable.c
index c1b0c34f0..39b57c0c4 100644
--- a/src/frontend/variable.c
+++ b/src/frontend/variable.c
@@ -341,7 +341,7 @@ cp_setparse(wordlist *wl)
             continue;
         }
 
-        ss = cp_unquote(val);
+        copyval = ss = cp_unquote(val);
         td = ft_numparse(&ss, FALSE);
         vv = alloc(struct variable);
         vv->va_name = copy(name);
@@ -355,7 +355,7 @@ cp_setparse(wordlist *wl)
             vv->va_type = VT_STRING;
             vv->va_string = copy(val);
         }
-        tfree(ss);/*DG: avoid cp_unquote memory leak */
+        tfree(copyval);/*DG: must free ss any way to avoid cp_unquote memory leak */
     }
     return (vars);
 }
diff --git a/src/frontend/vectors.c b/src/frontend/vectors.c
index 93661df1d..1deecf6a9 100644
--- a/src/frontend/vectors.c
+++ b/src/frontend/vectors.c
@@ -807,7 +807,7 @@ vec_mkfamily(struct dvec *v)
     int size, numvecs, i, j, count[MAXDIMS];
     int totalsize;
     struct dvec *vecs, *d;
-    char buf[BSIZE_SP];
+    char buf[BSIZE_SP], buf2[BSIZE_SP];
 
     if (v->v_numdims < 2)
         return (v);
@@ -827,8 +827,8 @@ vec_mkfamily(struct dvec *v)
     for (i = 0; i < MAXDIMS; i++)
         count[i] = 0;
     for (d = vecs, j = 0; d; j++, d = d->v_link2) {
-	(void) sprintf(buf, "%s%s", v->v_name,
-		indexstring(count, v->v_numdims - 1));
+    	indexstring(count, v->v_numdims - 1, buf2);
+	(void) sprintf(buf, "%s%s", v->v_name, buf2);
         d->v_name = copy(buf);
         d->v_type = v->v_type;
         d->v_flags = v->v_flags;
diff --git a/src/include/fteext.h b/src/include/fteext.h
index d315d0c8b..a2f12760d 100644
--- a/src/include/fteext.h
+++ b/src/include/fteext.h
@@ -528,9 +528,9 @@ extern void com_clearplot();
 extern void com_reshape();
 
 /* dimens.c */
-extern char *dimstring();
+extern void dimstring();
 extern int atodims();
-extern char *indexstring();
+extern void indexstring();
 extern int incindex( );
 
 #endif /* FTEext_h */
diff --git a/src/include/inpdefs.h b/src/include/inpdefs.h
index d5248a31e..c739a8699 100644
--- a/src/include/inpdefs.h
+++ b/src/include/inpdefs.h
@@ -96,6 +96,7 @@ int INPgetTok(char**,char**,int);
 void INPgetTree(char**,INPparseTree**,void*,INPtables*);
 IFvalue * INPgetValue(void*,char**,int,INPtables*);
 int INPgndInsert(void*,char**,INPtables*,void**);
+int INPinsertNofree(char **token, INPtables *tab);
 int INPinsert(char**,INPtables*);
 int INPretrieve(char**,INPtables*);
 int INPremove(char*,INPtables*);