non-Monolith fixes.

Submitted by Andrew W. Gray <agray@iconsinc.com>
diff --git a/apps/apps.h b/apps/apps.h
index aad2862..24aa447 100644
--- a/apps/apps.h
+++ b/apps/apps.h
@@ -121,6 +121,7 @@
 #include <openssl/lhash.h>
 #include <openssl/conf.h>
 #include <openssl/txt_db.h>
+#include <openssl/engine.h>
 #include <openssl/ossl_typ.h>
 
 int app_RAND_load_file(const char *file, BIO *bio_e, int dont_warn);