http://bugs.gentoo.org/210997

--- scripts/Makefile.in
+++ scripts/Makefile.in
@@ -760,7 +760,7 @@
 # a bit hacky...
 	$(mkdir_p) t.tmp
 	cp -dRl $(srcdir)/t/200_Dpkg_Shlibs/ld.so.conf* t.tmp/
-	srcdir=$(srcdir) PERL5LIB=$(srcdir) PERL_DL_NONLAZY=1 $(PERL) -I$(srcdir) "-MExtUtils::Command::MM" "-e" "test_harness($(TEST_VERBOSE), '.')" $(TEST_FILES)
+	PATH="$(top_builddir)/src:$(PATH)" srcdir=$(srcdir) PERL5LIB=$(srcdir) PERL_DL_NONLAZY=1 $(PERL) -I$(srcdir) "-MExtUtils::Command::MM" "-e" "test_harness($(TEST_VERBOSE), '.')" $(TEST_FILES)
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT: