diff -up Crypt-DSA-1.17/Makefile.PL.orig Crypt-DSA-1.17/Makefile.PL
--- Crypt-DSA-1.17/Makefile.PL.orig	2017-05-18 09:53:29.030866650 +0200
+++ Crypt-DSA-1.17/Makefile.PL	2017-05-18 09:56:49.197977193 +0200
@@ -1,3 +1,5 @@
+BEGIN { push @INC, '.'; }
+
 use inc::Module::Install 1.01;
 
 all_from      'lib/Crypt/DSA.pm';