Valgrind testing not functional
./configure --enable-valgrind-tests && make check
should perform valgrind testing, but it doesn't.
Valgrinding takes a lot of time, e.g. when doing it manually:
./configure --enable-valgrind-tests
make check
cd tests
valgrind ./test-lookup
TESTS_ENVIRONMENT="valgrind" make check
doesn't work either. Something is severely broken...