diff --git a/examples/C/large_grib1.c b/examples/C/large_grib1.c
index e351f1b80..a01761ced 100644
--- a/examples/C/large_grib1.c
+++ b/examples/C/large_grib1.c
@@ -10,6 +10,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <time.h>
 #include "eccodes.h"
 
 /* See JIRA issue GRIB-361 */
diff --git a/src/grib_accessor_class_data_jpeg2000_packing.cc b/src/grib_accessor_class_data_jpeg2000_packing.cc
index 610c14b28..a95735ac8 100644
--- a/src/grib_accessor_class_data_jpeg2000_packing.cc
+++ b/src/grib_accessor_class_data_jpeg2000_packing.cc
@@ -583,6 +583,11 @@ cleanup:
 }
 #else
 
+static int unpack_float(grib_accessor* a, float* val, size_t* len)
+{
+    grib_context_log(a->context, GRIB_LOG_ERROR, "JPEG support not enabled.");
+    return GRIB_FUNCTIONALITY_NOT_ENABLED;
+}
 static int unpack_double(grib_accessor* a, double* val, size_t* len)
 {
     grib_context_log(a->context, GRIB_LOG_ERROR, "JPEG support not enabled.");