cdi_util.c: include cdi_int.h

src/cdi_int.h

@@ -421,7 +421,7 @@ int cdiStreamDefTimestep_(stream_t *streamptr, int tsID);
 
 void cdiStreamSync_(stream_t *streamptr);
 
-char *cdiUnitNamePtr(int cdi_unit);
+const char *cdiUnitNamePtr(int cdi_unit);
 
 void zaxisGetIndexList(int nzaxis, int *zaxisIndexList);
 

src/cdi_util.c

 #include <stdio.h>
 #include <stdlib.h>
 
+#include "cdi_int.h"
+
 void cdiDecodeParam(int param, int *pnum, int *pcat, int *pdis)
 {
   unsigned uparam = (unsigned)param;