diff --git a/ChangeLog b/ChangeLog
index 7eec54ed2..383a1813e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2011-10-31  Robert Larice
+ * src/main.c ,
+ * src/frontend/com_fft.c ,
+ * src/frontend/ftesopt.c ,
+ * src/frontend/resource.c ,
+ * src/frontend/numparam/xpressn.c :
+  swallow warnings
+
 2011-10-31  Robert Larice
  * src/spicelib/devices/hisim2/hisim2.h ,
  * src/spicelib/devices/hisim2/hsm2ld.c ,
diff --git a/src/frontend/com_fft.c b/src/frontend/com_fft.c
index 080e5906f..4113f68fb 100644
--- a/src/frontend/com_fft.c
+++ b/src/frontend/com_fft.c
@@ -432,7 +432,7 @@ com_psd(wordlist *wl)
         names = names->pn_next;
         while (vec) {
             if (vec->v_length != (int)tlen) {
-                fprintf(cp_err, "Error: lengths of %s vectors don't match: %d, %d\n",
+                fprintf(cp_err, "Error: lengths of %s vectors don't match: %d, %lu\n",
                         vec->v_name, vec->v_length, tlen);
                 vec = vec->v_link2;
                 continue;
@@ -496,8 +496,8 @@ com_psd(wordlist *wl)
        vec = vec->v_link2;
     }
 
-    printf("PSD: Time span: %g s, input length: %d, zero padding: %d\n", span, size, size-tlen);
-    printf("PSD: Freq. resolution: %g Hz, output length: %d\n", 1.0/span*tlen/size, fpts);
+    printf("PSD: Time span: %g s, input length: %lu, zero padding: %lu\n", span, size, size-tlen);
+    printf("PSD: Freq. resolution: %g Hz, output length: %lu\n", 1.0/span*tlen/size, fpts);
 
     sign = 1;
     isreal = 1;
diff --git a/src/frontend/ftesopt.c b/src/frontend/ftesopt.c
index c98afd668..d73e00c54 100644
--- a/src/frontend/ftesopt.c
+++ b/src/frontend/ftesopt.c
@@ -12,21 +12,21 @@ Author: 2010 Paolo Nenzi
 #include <ngspice/sperror.h>
 
 
-typedef struct sFTEparm {
+struct FTEparm {
     char *keyword;
     int id;
-    char dataType;
+    enum cp_types dataType;
     char *description;
-} FTEparm;
+};
 
 
-static FTEparm FTEOPTtbl[] = {
+static struct FTEparm FTEOPTtbl[] = {
     { "decklineno",   FTEOPT_NLDECK, CP_NUM,  "Number of lines in the deck" },
     { "netloadtime",  FTEOPT_NLT,    CP_REAL, "Netlist loading time"        },
     { "netparsetime", FTEOPT_NPT,    CP_REAL, "Netlist parsing time"        }
 };
 
-int FTEOPTcount = sizeof(FTEOPTtbl)/sizeof(FTEparm);
+static const int FTEOPTcount = sizeof(FTEOPTtbl)/sizeof(*FTEOPTtbl);
 
 static struct variable *getFTEstat(struct circ *, int);
 
diff --git a/src/frontend/numparam/xpressn.c b/src/frontend/numparam/xpressn.c
index 929d495c7..b5afa22f1 100644
--- a/src/frontend/numparam/xpressn.c
+++ b/src/frontend/numparam/xpressn.c
@@ -2139,10 +2139,10 @@ nupa_subcktcall (tdico * dico, char *s, char *x, bool err)
                     j++;
                     if (t_p[k] > ' ')
                     {
-                        spice_dstring_append(&vstr, "Subckt call, symbol ",-1) ;
+                        spice_dstring_append(&vstr, "Subckt call, symbol ", -1);
                         cadd (&vstr, t_p[k]);
                         sadd (&vstr, " not understood");
-                        message (dico, spice_dstring_value(&vstr) ) ;
+                        message (dico, "%s", spice_dstring_value(&vstr));
                     }
                 }
 
diff --git a/src/frontend/resource.c b/src/frontend/resource.c
index f762cd00f..f79c94d09 100644
--- a/src/frontend/resource.c
+++ b/src/frontend/resource.c
@@ -172,9 +172,6 @@ ft_ckspace(void)
     hi=sbrk(0);
     usage = (size_t) (hi - enddata);
 
-    if (limit < 0)
-	return;	/* what else do you do? */
-
     if (usage <= old_usage)
 	return;
 
diff --git a/src/main.c b/src/main.c
index 41d46376b..2ef7bd5ce 100644
--- a/src/main.c
+++ b/src/main.c
@@ -168,7 +168,7 @@ struct variable *(*if_getparam)(CKTcircuit *ckt, char **name, char *param, int i
 
 /* static functions */
 int SIMinit(IFfrontEnd *frontEnd, IFsimulator **simulator);
-static int sp_shutdown(int exitval);
+static void sp_shutdown(int exitval);
 static void app_rl_readlines(void);
 
 #if defined(HAVE_GNUREADLINE) || defined(HAVE_BSDEDITLINE)
@@ -475,7 +475,7 @@ SIMinit(IFfrontEnd *frontEnd, IFsimulator **simulator)
 
 /* -------------------------------------------------------------------------- */
 /* Shutdown gracefully. */
-static int
+static void
 sp_shutdown(int exitval)
 {
     cleanvars();
@@ -1293,7 +1293,8 @@ main(int argc, char **argv)
             sp_shutdown(EXIT_BAD);
         }
 
-        return sp_shutdown(EXIT_NORMAL);
+        sp_shutdown(EXIT_NORMAL);
+        return 0;
     }  /* ---  if (ft_batchmode) ---  */
 
 
@@ -1330,5 +1331,6 @@ main(int argc, char **argv)
             app_rl_readlines();
         }
 
-    return sp_shutdown(EXIT_NORMAL);
+    sp_shutdown(EXIT_NORMAL);
+    return 0;
 }