Checking if your kit is complete...
Looks good
Writing Makefile for Callback
cp Callback.pod blib/lib/Callback.pod
cp Callback.pm blib/lib/Callback.pm
Manifying blib/man3/Callback.3
PERL_DL_NONLAZY=1 /Users/cpanrun/build/5.8.8/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(1, 'blib/lib', 'blib/arch')" t/*.t
t/callback....1..7
ok 1
ok 2
ok 3
ok 4
ok 5
ok 6
ok 7
ok
t/error.......1..2
ok 1
ok 2
ok
t/obj.........1..5
ok 1
ok 2
ok 3
ok 4
ok 5
ok
t/store.......1..5
ok 1
ok 2
ok 3
ok 4
ok 5
ok
All tests successful.
Files=4, Tests=19,  0 wallclock secs ( 0.15 cusr +  0.07 csys =  0.22 CPU)
Installing /Users/cpanrun/build/5.8.8/html/site/lib/Callback.html
Installing /Users/cpanrun/build/5.8.8/lib/site_perl/5.8.8/Callback.pm
Installing /Users/cpanrun/build/5.8.8/lib/site_perl/5.8.8/Callback.pod
Installing /Users/cpanrun/build/5.8.8/man/man3/Callback.3
Appending installation info to /Users/cpanrun/build/5.8.8/lib/5.8.8/darwin-thread-multi-2level/perllocal.pod