diff --git a/setup.h.in b/setup.h.in
index 47c35d8f85..7cca609a4a 100644
--- a/setup.h.in
+++ b/setup.h.in
@@ -781,6 +781,9 @@
 /* Define if you have strptime() */
 #undef HAVE_STRPTIME
 
+/* Define if strptime() is declared in headers */
+#undef HAVE_STRPTIME_DECL
+
 /* Define if you have all functions to set thread priority */
 #undef HAVE_THREAD_PRIORITY_FUNCTIONS
 
diff --git a/setup.h_vms b/setup.h_vms
index 98533574f0..92cc838cc5 100644
--- a/setup.h_vms
+++ b/setup.h_vms
@@ -824,7 +824,10 @@
 
 /* Define if you have strptime() */
 #define HAVE_STRPTIME 1
- 
+
+/* Define if you have strptime() declaration */
+#define HAVE_STRPTIME_DECL 1
+
 /* Define if you have all functions to set thread priority */
 #define HAVE_THREAD_PRIORITY_FUNCTIONS 1