new error core NC_EMULTIDEFINE_HINTS for inconsistent I/O hints set by users

Author: wkliao

src/include/pnetcdf.h.in

@@ -686,9 +686,10 @@ by the desired type. */
 #define NC_EMULTIDEFINE_VAR_FILL_MODE	(-271) /**< inconsistent variable fill mode */
 #define NC_EMULTIDEFINE_VAR_FILL_VALUE	(-272) /**< inconsistent variable fill value */
 #define NC_EMULTIDEFINE_CMODE		(-273) /**< inconsistent file create modes among processes */
+#define NC_EMULTIDEFINE_HINTS		(-274) /**< inconsistent I/O hints among processes */
 
 #define NC_EMULTIDEFINE_FIRST		NC_EMULTIDEFINE
-#define NC_EMULTIDEFINE_LAST		NC_EMULTIDEFINE_CMODE
+#define NC_EMULTIDEFINE_LAST		NC_EMULTIDEFINE_HINTS
 
 /* backward compatible with PnetCDF 1.3.1 and earlier */
 #define NC_ECMODE			NC_EMULTIDEFINE_OMODE