Fix missing include of string.h in apps/lib/engine.c for strcmp.
This include is required for c99 on the NonStop TNS/X platform.
CLA: trivial
Fixes
*/
#define OPENSSL_SUPPRESS_DEPRECATED
+#include <string.h> /* strcmp */
+
#include <openssl/types.h> /* Ensure we have the ENGINE type, regardless */
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
