If you use Mac OS X >= 10.6, use gnu tar (/usr/bin/gnutar) to avoid PAX headers. It's also important to rename (shorten) long file names (>= 100 characters) in the distribution.
Error: PaxHeader/Cache-CodeBlock-0.04,PaxHeader/Cache-CodeBlock-0.04,Cache-CodeBlock-0.04/PaxHeader/Changes,Cache-CodeBlock-0.04/PaxHeader/Changes,Cache-CodeBlock-0.04/PaxHeader/MANIFEST,Cache-CodeBlock-0.04/PaxHeader/MANIFEST,Cache-CodeBlock-0.04/PaxHeader/ignore.txt,Cache-CodeBlock-0.04/PaxHeader/ignore.txt,Cache-CodeBlock-0.04/PaxHeader/t,Cache-CodeBlock-0.04/PaxHeader/t,Cache-CodeBlock-0.04/PaxHeader/xt,Cache-CodeBlock-0.04/PaxHeader/xt,Cache-CodeBlock-0.04/PaxHeader/README,Cache-CodeBlock-0.04/PaxHeader/README,Cache-CodeBlock-0.04/PaxHeader/META.yml,Cache-CodeBlock-0.04/PaxHeader/META.yml,Cache-CodeBlock-0.04/PaxHeader/lib,Cache-CodeBlock-0.04/PaxHeader/lib,Cache-CodeBlock-0.04/PaxHeader/Makefile.PL,Cache-CodeBlock-0.04/PaxHeader/Makefile.PL,Cache-CodeBlock-0.04/PaxHeader/META.json,Cache-CodeBlock-0.04/PaxHeader/META.json,Cache-CodeBlock-0.04/lib/PaxHeader/Cache,Cache-CodeBlock-0.04/lib/PaxHeader/Cache,Cache-CodeBlock-0.04/lib/Cache/PaxHeader/CodeBlock.pm,Cache-CodeBlock-0.04/lib/Cache/PaxHeader/CodeBlock.pm,Cache-CodeBlock-0.04/xt/PaxHeader/boilerplate.t,Cache-CodeBlock-0.04/xt/PaxHeader/boilerplate.t,Cache-CodeBlock-0.04/t/PaxHeader/pod.t,Cache-CodeBlock-0.04/t/PaxHeader/pod.t,Cache-CodeBlock-0.04/t/PaxHeader/01-test.t,Cache-CodeBlock-0.04/t/PaxHeader/01-test.t,Cache-CodeBlock-0.04/t/PaxHeader/manifest.t,Cache-CodeBlock-0.04/t/PaxHeader/manifest.t,Cache-CodeBlock-0.04/t/PaxHeader/02-time-unique.t,Cache-CodeBlock-0.04/t/PaxHeader/02-time-unique.t,Cache-CodeBlock-0.04/t/PaxHeader/00-load.t,Cache-CodeBlock-0.04/t/PaxHeader/00-load.t,Cache-CodeBlock-0.04/t/PaxHeader/pod-coverage.t,Cache-CodeBlock-0.04/t/PaxHeader/pod-coverage.t