1 files changed, 19 insertions, 0 deletions
diff --git a/util/with_fallback.pm b/util/with_fallback.pm
new file mode 100644
index 0000000000..014f355156
--- /dev/null
+++ b/util/with_fallback.pm
@@ -0,0 +1,19 @@
+#! /usr/bin/perl
+
+package with_fallback;
+
+sub import {
+    use File::Basename;
+    use File::Spec::Functions;
+    foreach (@_) {
+	eval "require $_";
+	if ($@) {
+	    unshift @INC, catdir(dirname(__FILE__), "..", "external", "perl");
+	    my $transfer = "transfer::$_";
+	    eval "require $transfer";
+	    shift @INC;
+	    warn $@ if $@;
+	}
+    }
+}
+1;