Fix signed overflow warnings.

src/stream_cdf.c

@@ -7865,12 +7865,21 @@ int cdfInqContents(stream_t *streamptr)
       calendar = CALENDAR_STANDARD;
     }
 
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)
+#pragma GCC diagnostic push
+#endif
+#ifdef __GNUC__
+#pragma GCC diagnostic warning "-Wstrict-overflow"
+#endif
   if ( calendar != UNDEFID )
     {
       taxis_t *taxis = &streamptr->tsteps[0].taxis;
       taxis->calendar = calendar;
       taxisDefCalendar(taxisID, calendar);
     }
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 5)
+#pragma GCC diagnostic pop
+#endif
 
   vlistDefTaxis(vlistID, taxisID);
 

src/stream_gribapi.c

@@ -827,7 +827,7 @@ int gribapiScanTimestep1(stream_t * streamptr)
 
   int fileID = streamptr->fileID;
 
-  int nrecs = 0;
+  unsigned nrecs = 0;
   while ( TRUE )
     {
       int level1 = 0, level2 = 0;
@@ -921,7 +921,7 @@ int gribapiScanTimestep1(stream_t * streamptr)
         {
           char paramstr[32];
           cdiParamToString(param, paramstr, sizeof(paramstr));
-          Message("%4d %8d name=%s id=%s ltype=%d lev1=%d lev2=%d vdate=%d vtime=%d",
+          Message("%4u %8d name=%s id=%s ltype=%d lev1=%d lev2=%d vdate=%d vtime=%d",
                 nrecs, (int)recpos, varname, paramstr, leveltype1, level1, level2, vdate, vtime);
         }