quiet some macosx warnings

src/restore.c

@@ -1679,7 +1679,7 @@ validate(nhfp, name)
 NHFILE *nhfp;
 const char *name;
 {
-    int rlen;
+    int rlen = 0;
     struct savefile_info sfi;
     unsigned long utdflags = 0L;
     boolean verbose = name ? TRUE : FALSE, reslt = FALSE;

src/save.c

@@ -436,7 +436,7 @@ char *whynot;
 void
 savestateinlock()
 {
-    int hpid;
+    int hpid = 0;
     static boolean havestate = TRUE;
     char whynot[BUFSZ];
     NHFILE *nhfp;

src/sfbase.c

@@ -635,6 +635,12 @@ int cnt;
             (void) fprintf(nhfp->fpdebug, "%s %s %s cnt=%d ", t1, t2, t3, cnt);
     }
 #endif
+#else
+    nhUse(nhfp);
+    nhUse(t1);
+    nhUse(t2);
+    nhUse(t3);
+    nhUse(cnt);
 #endif
 }
 

src/sfstruct.c

@@ -145,7 +145,7 @@ int fd;
             if ((bw_FILE[idx] = fdopen(fd, "w")) == 0)
                 panic("buffering of file %d failed", fd);
         }
-        bw_buffered[idx] = (bw_FILE[idx] > 0);
+        bw_buffered[idx] = (bw_FILE[idx] != 0);
 #else
         bw_buffered[idx] = 1;
 #endif

util/readtags.c

@@ -1035,7 +1035,7 @@ static void generate_c_files()
                 deblank(readtagstypes[k].dtype));
                         
         Fprintf(SFO_DATA,
-                "    char *parent = \"%s\";\n",
+                "    const char *parent = \"%s\";\n",
                 readtagstypes[k].dtype);
 
         Fprintf(SFI_PROTO,
@@ -1059,7 +1059,7 @@ static void generate_c_files()
                 deblank(readtagstypes[k].dtype));                    
 
         Fprintf(SFI_DATA,
-                "    char *parent = \"%s\";\n",
+                "    const char *parent = \"%s\";\n",
                 readtagstypes[k].dtype);
 
         Sprintf(sfparent, "%s %s", pt, readtagstypes[k].dtype);
@@ -1083,7 +1083,7 @@ static void generate_c_files()
                 readtagstypes[k].dtype);
 
         Fprintf(SFI_DATA,
-                "    if (nhfp->addinfo)\n"
+                "    nhUse(myname);\n    if (nhfp->addinfo)\n"
                 "        sfi_addinfo(nhfp, myparent, \"start\", \"%s\", 1);\n",
                 readtagstypes[k].dtype);