Use appropriate integer conversion.

src/stream_gribapi.c

@@ -1453,8 +1453,8 @@ gribapiScanTimestep2(stream_t *streamptr)
         {
           char paramstr[32];
           cdiParamToString(param, paramstr, sizeof(paramstr));
-          Message("%4d %8d name=%s id=%s ltype=%d lev1=%d lev2=%d vDateTime=%s", nrecsScanned, (int) recpos, varname, paramstr,
-                  leveltype1, level1, level2, CdiDateTime_string(vDateTime));
+          Message("%4d %8lld name=%s id=%s ltype=%d lev1=%d lev2=%d vDateTime=%s", nrecsScanned, (long long) recpos, varname,
+                  paramstr, leveltype1, level1, level2, CdiDateTime_string(vDateTime));
         }
 
       if (gribapiVarCompare(compVar, records[recID], 0) != 0)
@@ -1633,7 +1633,8 @@ gribapiScanTimestep(stream_t *streamptr)
           records[recID].used = true;
           streamptr->tsteps[tsID].recIDs[rindex] = recID;
 
-          if (CDI_Debug) Message("%4d %8d %4d %8d %8s", rindex + 1, (int) recpos, param, level1, CdiDateTime_string(vDateTime));
+          if (CDI_Debug)
+            Message("%4d %8lld %4d %8d %8s", rindex + 1, (long long) recpos, param, level1, CdiDateTime_string(vDateTime));
 
           if (gribapiVarCompare(compVar, records[recID], 0) != 0)
             {
@@ -1645,7 +1646,7 @@ gribapiScanTimestep(stream_t *streamptr)
           records[recID].position = recpos;
           records[recID].size = recsize;
 
-          if (CDI_Debug) Message("%4d %8d %4d %8d %s", rindex, (int) recpos, param, level1, CdiDateTime_string(vDateTime));
+          if (CDI_Debug) Message("%4d %8lld %4d %8d %s", rindex, (long long) recpos, param, level1, CdiDateTime_string(vDateTime));
 
           grib_handle_delete(gh);
           gh = NULL;