zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/util/perl/with_fallback.pm b/ap/lib/libssl/openssl-1.1.1o/util/perl/with_fallback.pm
new file mode 100644
index 0000000..2423650
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/util/perl/with_fallback.pm
@@ -0,0 +1,27 @@
+# Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License"). You may not use
+# this file except in compliance with the License. You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
+package with_fallback;
+
+sub import {
+ shift;
+
+ use File::Basename;
+ use File::Spec::Functions;
+ foreach (@_) {
+ eval "use $_";
+ if ($@) {
+ unshift @INC, catdir(dirname(__FILE__),
+ "..", "..", "external", "perl");
+ my $transfer = "transfer::$_";
+ eval "use $transfer";
+ shift @INC;
+ warn $@ if $@;
+ }
+ }
+}
+1;