Force use of right directory for perl modules in Debian
--- a/Makefile.am
+++ b/Makefile.am
@@ -75,7 +75,7 @@
 		ln -s $(abs_top_srcdir)/Perl-Module/lib/TakTuk/Pilot.pm lib/TakTuk ; \
 		ln -s $(abs_top_srcdir)/Perl-Module/Makefile.PL . ; \
 	fi ;\
-	perl Makefile.PL PREFIX=${prefix}
+	perl Makefile.PL installdirs=vendor
 
 modules_make: Perl-Module/Makefile
 	$(MAKE) -C Perl-Module