garmin_txt: Fix C89 warning.

diff --git a/garmin_txt.c b/garmin_txt.c
index 545c024e5ff2751663f8b8477fb1c89922263b45..460a6035eba0eeab082eaaa1117a906caa78f8f7 100644 (file)
--- a/garmin_txt.c
+++ b/garmin_txt.c
@@ -774,13 +774,14 @@ static void
 garmin_txt_write(void)
 {
        char *grid_str, *c;
+       const char *datum_str;
        
        grid_str = xstrdup(gt_get_mps_grid_longname(grid_index, MYNAME));
        while ((c = strchr(grid_str, '*'))) *c = 0xB0;  /* degree sign */
        cet_gbfprintf(fout, &cet_cs_vec_cp1252, "Grid\t%s\r\n", grid_str);
        xfree(grid_str);
 
-       const char *datum_str = gt_get_mps_datum_name(datum_index);
+       datum_str = gt_get_mps_datum_name(datum_index);
        gbfprintf(fout, "Datum\t%s\r\n\r\n", datum_str);
 
        waypoints = 0;