$ make disttest dist veryclean
which I thought should test the distribution-packaged files, create a neat tarball and leave the current directory clean. THE only mistake is that "make disttest" creates the "blib" directories and "make dist" packages it together in the tarball. The pause indexer points your error:
The distribution contains a blib/ directory and is therefore not being indexed. Hint: try 'make dist'.
And I needed to use some weird file names (like Exporter-5.61b.tar.gz) to index correctly the files. I will be smarter some next time.