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-rw-r--r--apps/ocsp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/apps/ocsp.c b/apps/ocsp.c
index 8bf67aad31..c8676fc537 100644
--- a/apps/ocsp.c
+++ b/apps/ocsp.c
@@ -59,6 +59,10 @@
#include <stdio.h>
#include <string.h>
+#define _XOPEN_SOURCE_EXTENDED 1 /* Or fd_set, select() and so on won't be
+ declared properly on Compaq platforms
+ (at least with DEC C).
+ */
#include <time.h>
#include "apps.h"
#include <openssl/pem.h>