or download this
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_h
+arness(0, 'blib/lib', 'bl
+ib/arch')" t/*.t
t/TwinTree....NOK 1
# Failed test 'use TwinTree;'
...
make[1]: *** [test_dynamic] Error 1
make[1]: Leaving directory `/home/floyd/twintree/TwinTree'
make: *** [TwinTree.pm] Error 2